path: root/system/musl/amalgamation.patch

diff --git a/Makefile b/Makefile
index 308ddaae..e23a8332 100644
--- a/Makefile
+++ b/Makefile
@@ -116,17 +116,14 @@ obj/crt/Scrt1.o obj/crt/rcrt1.o: CFLAGS_ALL += -fPIC
 OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=$(srcdir)/src/%))
 $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.o) $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.lo): CFLAGS += -O3
 
-MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c
-$(MEMOPS_SRCS:%.c=obj/%.o) $(MEMOPS_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS)
-
-NOSSP_SRCS = $(wildcard crt/*.c) \
-	src/env/__libc_start_main.c src/env/__init_tls.c \
-	src/env/__stack_chk_fail.c \
-	src/thread/__set_thread_area.c src/thread/$(ARCH)/__set_thread_area.c \
-	src/string/memset.c src/string/$(ARCH)/memset.c \
-	src/string/memcpy.c src/string/$(ARCH)/memcpy.c \
-	ldso/dlstart.c ldso/dynlink.c
-$(NOSSP_SRCS:%.c=obj/%.o) $(NOSSP_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP)
+MEMOPS_OBJS = $(filter %/memcpy.o %/memmove.o %/memcmp.o %/memset.o, $(LIBC_OBJS))
+$(MEMOPS_OBJS) $(MEMOPS_OBJS:%.o=%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS)
+
+NOSSP_OBJS = $(CRT_OBJS) $(LDSO_OBJS) $(filter \
+	%/__libc_start_main.o %/__init_tls.o %/__stack_chk_fail.o \
+	%/__set_thread_area.o %/memset.o %/memcpy.o \
+	, $(LIBC_OBJS))
+$(NOSSP_OBJS) $(NOSSP_OBJS:%.o=%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP)
 
 $(CRT_OBJS): CFLAGS_ALL += -DCRT
 
diff --git a/arch/aarch64/bits/hwcap.h b/arch/aarch64/bits/hwcap.h
index 11396d31..8541e329 100644
--- a/arch/aarch64/bits/hwcap.h
+++ b/arch/aarch64/bits/hwcap.h
@@ -14,3 +14,15 @@
 #define HWCAP_JSCVT		(1 << 13)
 #define HWCAP_FCMA		(1 << 14)
 #define HWCAP_LRCPC		(1 << 15)
+#define HWCAP_DCPOP		(1 << 16)
+#define HWCAP_SHA3		(1 << 17)
+#define HWCAP_SM3		(1 << 18)
+#define HWCAP_SM4		(1 << 19)
+#define HWCAP_ASIMDDP		(1 << 20)
+#define HWCAP_SHA512		(1 << 21)
+#define HWCAP_SVE		(1 << 22)
+#define HWCAP_ASIMDFHM		(1 << 23)
+#define HWCAP_DIT		(1 << 24)
+#define HWCAP_USCAT		(1 << 25)
+#define HWCAP_ILRCPC		(1 << 26)
+#define HWCAP_FLAGM		(1 << 27)
diff --git a/arch/aarch64/bits/signal.h b/arch/aarch64/bits/signal.h
index 1c67313d..b71261f5 100644
--- a/arch/aarch64/bits/signal.h
+++ b/arch/aarch64/bits/signal.h
@@ -25,6 +25,7 @@ typedef struct sigcontext {
 #define FPSIMD_MAGIC 0x46508001
 #define ESR_MAGIC 0x45535201
 #define EXTRA_MAGIC 0x45585401
+#define SVE_MAGIC 0x53564501
 struct _aarch64_ctx {
 	unsigned int magic;
 	unsigned int size;
@@ -45,6 +46,44 @@ struct extra_context {
 	unsigned int size;
 	unsigned int __reserved[3];
 };
+struct sve_context {
+	struct _aarch64_ctx head;
+	unsigned short vl;
+	unsigned short __reserved[3];
+};
+#define SVE_VQ_BYTES		16
+#define SVE_VQ_MIN		1
+#define SVE_VQ_MAX		512
+#define SVE_VL_MIN		(SVE_VQ_MIN * SVE_VQ_BYTES)
+#define SVE_VL_MAX		(SVE_VQ_MAX * SVE_VQ_BYTES)
+#define SVE_NUM_ZREGS		32
+#define SVE_NUM_PREGS		16
+#define sve_vl_valid(vl) \
+	((vl) % SVE_VQ_BYTES == 0 && (vl) >= SVE_VL_MIN && (vl) <= SVE_VL_MAX)
+#define sve_vq_from_vl(vl)	((vl) / SVE_VQ_BYTES)
+#define sve_vl_from_vq(vq)	((vq) * SVE_VQ_BYTES)
+#define SVE_SIG_ZREG_SIZE(vq)	((unsigned)(vq) * SVE_VQ_BYTES)
+#define SVE_SIG_PREG_SIZE(vq)	((unsigned)(vq) * (SVE_VQ_BYTES / 8))
+#define SVE_SIG_FFR_SIZE(vq)	SVE_SIG_PREG_SIZE(vq)
+#define SVE_SIG_REGS_OFFSET					\
+	((sizeof(struct sve_context) + (SVE_VQ_BYTES - 1))	\
+		/ SVE_VQ_BYTES * SVE_VQ_BYTES)
+#define SVE_SIG_ZREGS_OFFSET	SVE_SIG_REGS_OFFSET
+#define SVE_SIG_ZREG_OFFSET(vq, n) \
+	(SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREG_SIZE(vq) * (n))
+#define SVE_SIG_ZREGS_SIZE(vq) \
+	(SVE_SIG_ZREG_OFFSET(vq, SVE_NUM_ZREGS) - SVE_SIG_ZREGS_OFFSET)
+#define SVE_SIG_PREGS_OFFSET(vq) \
+	(SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREGS_SIZE(vq))
+#define SVE_SIG_PREG_OFFSET(vq, n) \
+	(SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREG_SIZE(vq) * (n))
+#define SVE_SIG_PREGS_SIZE(vq) \
+	(SVE_SIG_PREG_OFFSET(vq, SVE_NUM_PREGS) - SVE_SIG_PREGS_OFFSET(vq))
+#define SVE_SIG_FFR_OFFSET(vq) \
+	(SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREGS_SIZE(vq))
+#define SVE_SIG_REGS_SIZE(vq) \
+	(SVE_SIG_FFR_OFFSET(vq) + SVE_SIG_FFR_SIZE(vq) - SVE_SIG_REGS_OFFSET)
+#define SVE_SIG_CONTEXT_SIZE(vq) (SVE_SIG_REGS_OFFSET + SVE_SIG_REGS_SIZE(vq))
 #else
 typedef struct {
 	long double __regs[18+256];
diff --git a/arch/aarch64/pthread_arch.h b/arch/aarch64/pthread_arch.h
index b2e2d8f1..e8499d8e 100644
--- a/arch/aarch64/pthread_arch.h
+++ b/arch/aarch64/pthread_arch.h
@@ -2,10 +2,11 @@ static inline struct pthread *__pthread_self()
 {
 	char *self;
 	__asm__ __volatile__ ("mrs %0,tpidr_el0" : "=r"(self));
-	return (void*)(self + 16 - sizeof(struct pthread));
+	return (void*)(self - sizeof(struct pthread));
 }
 
 #define TLS_ABOVE_TP
-#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 16)
+#define GAP_ABOVE_TP 16
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
 
 #define MC_PC pc
diff --git a/arch/aarch64/reloc.h b/arch/aarch64/reloc.h
index 51b66e23..40cf0b28 100644
--- a/arch/aarch64/reloc.h
+++ b/arch/aarch64/reloc.h
@@ -10,7 +10,7 @@
 
 #define NO_LEGACY_INITFINI
 
-#define TPOFF_K 16
+#define TPOFF_K 0
 
 #define REL_SYMBOLIC    R_AARCH64_ABS64
 #define REL_GOT         R_AARCH64_GLOB_DAT
diff --git a/arch/arm/atomic_arch.h b/arch/arm/atomic_arch.h
index c5c56f81..62458b45 100644
--- a/arch/arm/atomic_arch.h
+++ b/arch/arm/atomic_arch.h
@@ -7,8 +7,8 @@
 extern uintptr_t __attribute__((__visibility__("hidden")))
 	__a_cas_ptr, __a_barrier_ptr;
 
-#if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
- || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ ||  __ARM_ARCH >= 7
+#if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6KZ__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+ || __ARM_ARCH_6T2__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
 
 #define a_ll a_ll
 static inline int a_ll(volatile int *p)
@@ -91,4 +91,16 @@ static inline int a_clz_32(uint32_t x)
 	return x;
 }
 
+#if __ARM_ARCH_6T2__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
+
+#define a_ctz_32 a_ctz_32
+static inline int a_ctz_32(uint32_t x)
+{
+	uint32_t xr;
+	__asm__ ("rbit %0, %1" : "=r"(xr) : "r"(x));
+	return a_clz_32(xr);
+}
+
+#endif
+
 #endif
diff --git a/arch/arm/bits/syscall.h.in b/arch/arm/bits/syscall.h.in
index c594152e..1920516a 100644
--- a/arch/arm/bits/syscall.h.in
+++ b/arch/arm/bits/syscall.h.in
@@ -359,4 +359,5 @@
 #define __ARM_NR_usr26		0x0f0003
 #define __ARM_NR_usr32		0x0f0004
 #define __ARM_NR_set_tls	0x0f0005
+#define __ARM_NR_get_tls	0x0f0006
 
diff --git a/arch/arm/pthread_arch.h b/arch/arm/pthread_arch.h
index 197752ef..8f2ae8f8 100644
--- a/arch/arm/pthread_arch.h
+++ b/arch/arm/pthread_arch.h
@@ -1,11 +1,11 @@
-#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6KZ__ || __ARM_ARCH_6ZK__) && !__thumb__) \
  || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
 
 static inline pthread_t __pthread_self()
 {
 	char *p;
 	__asm__ __volatile__ ( "mrc p15,0,%0,c13,c0,3" : "=r"(p) );
-	return (void *)(p+8-sizeof(struct pthread));
+	return (void *)(p-sizeof(struct pthread));
 }
 
 #else
@@ -21,12 +21,13 @@ static inline pthread_t __pthread_self()
 	extern uintptr_t __attribute__((__visibility__("hidden"))) __a_gettp_ptr;
 	register uintptr_t p __asm__("r0");
 	__asm__ __volatile__ ( BLX " %1" : "=r"(p) : "r"(__a_gettp_ptr) : "cc", "lr" );
-	return (void *)(p+8-sizeof(struct pthread));
+	return (void *)(p-sizeof(struct pthread));
 }
 
 #endif
 
 #define TLS_ABOVE_TP
-#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
+#define GAP_ABOVE_TP 8
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
 
 #define MC_PC arm_pc
diff --git a/arch/arm/reloc.h b/arch/arm/reloc.h
index b175711d..4b00bf64 100644
--- a/arch/arm/reloc.h
+++ b/arch/arm/reloc.h
@@ -16,7 +16,7 @@
 
 #define NO_LEGACY_INITFINI
 
-#define TPOFF_K 8
+#define TPOFF_K 0
 
 #define REL_SYMBOLIC    R_ARM_ABS32
 #define REL_GOT         R_ARM_GLOB_DAT
diff --git a/arch/arm/syscall_arch.h b/arch/arm/syscall_arch.h
index 6023303b..53fb155c 100644
--- a/arch/arm/syscall_arch.h
+++ b/arch/arm/syscall_arch.h
@@ -3,74 +3,99 @@
 ((union { long long ll; long l[2]; }){ .ll = x }).l[1]
 #define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
 
+#ifdef __thumb__
+
+/* Avoid use of r7 in asm constraints when producing thumb code,
+ * since it's reserved as frame pointer and might not be supported. */
+#define __ASM____R7__
+#define __asm_syscall(...) do { \
+	__asm__ __volatile__ ( "mov %1,r7 ; mov r7,%2 ; svc 0 ; mov r7,%1" \
+	: "=r"(r0), "=&r"((int){0}) : __VA_ARGS__ : "memory"); \
+	return r0; \
+	} while (0)
+
+#else
+
+#define __ASM____R7__ __asm__("r7")
 #define __asm_syscall(...) do { \
 	__asm__ __volatile__ ( "svc 0" \
 	: "=r"(r0) : __VA_ARGS__ : "memory"); \
 	return r0; \
 	} while (0)
+#endif
+
+/* For thumb2, we can allow 8-bit immediate syscall numbers, saving a
+ * register in the above dance around r7. Does not work for thumb1 where
+ * only movs, not mov, supports immediates, and we can't use movs because
+ * it doesn't support high regs. */
+#ifdef __thumb2__
+#define R7_OPERAND "rI"(r7)
+#else
+#define R7_OPERAND "r"(r7)
+#endif
 
 static inline long __syscall0(long n)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0");
-	__asm_syscall("r"(r7));
+	__asm_syscall(R7_OPERAND);
 }
 
 static inline long __syscall1(long n, long a)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0") = a;
-	__asm_syscall("r"(r7), "0"(r0));
+	__asm_syscall(R7_OPERAND, "0"(r0));
 }
 
 static inline long __syscall2(long n, long a, long b)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0") = a;
 	register long r1 __asm__("r1") = b;
-	__asm_syscall("r"(r7), "0"(r0), "r"(r1));
+	__asm_syscall(R7_OPERAND, "0"(r0), "r"(r1));
 }
 
 static inline long __syscall3(long n, long a, long b, long c)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0") = a;
 	register long r1 __asm__("r1") = b;
 	register long r2 __asm__("r2") = c;
-	__asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2));
+	__asm_syscall(R7_OPERAND, "0"(r0), "r"(r1), "r"(r2));
 }
 
 static inline long __syscall4(long n, long a, long b, long c, long d)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0") = a;
 	register long r1 __asm__("r1") = b;
 	register long r2 __asm__("r2") = c;
 	register long r3 __asm__("r3") = d;
-	__asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3));
+	__asm_syscall(R7_OPERAND, "0"(r0), "r"(r1), "r"(r2), "r"(r3));
 }
 
 static inline long __syscall5(long n, long a, long b, long c, long d, long e)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0") = a;
 	register long r1 __asm__("r1") = b;
 	register long r2 __asm__("r2") = c;
 	register long r3 __asm__("r3") = d;
 	register long r4 __asm__("r4") = e;
-	__asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4));
+	__asm_syscall(R7_OPERAND, "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4));
 }
 
 static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
 {
-	register long r7 __asm__("r7") = n;
+	register long r7 __ASM____R7__ = n;
 	register long r0 __asm__("r0") = a;
 	register long r1 __asm__("r1") = b;
 	register long r2 __asm__("r2") = c;
 	register long r3 __asm__("r3") = d;
 	register long r4 __asm__("r4") = e;
 	register long r5 __asm__("r5") = f;
-	__asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5));
+	__asm_syscall(R7_OPERAND, "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5));
 }
 
 #define VDSO_USEFUL
@@ -78,3 +103,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 #define VDSO_CGT_VER "LINUX_2.6"
 
 #define SYSCALL_FADVISE_6_ARG
+
+#define SYSCALL_IPC_BROKEN_MODE
diff --git a/arch/generic/bits/kd.h b/arch/generic/bits/kd.h
new file mode 100644
index 00000000..33b873f4
--- /dev/null
+++ b/arch/generic/bits/kd.h
@@ -0,0 +1 @@
+#include <linux/kd.h>
diff --git a/arch/generic/bits/ptrace.h b/arch/generic/bits/ptrace.h
new file mode 100644
index 00000000..e69de29b
diff --git a/arch/generic/bits/soundcard.h b/arch/generic/bits/soundcard.h
new file mode 100644
index 00000000..fade986f
--- /dev/null
+++ b/arch/generic/bits/soundcard.h
@@ -0,0 +1 @@
+#include <linux/soundcard.h>
diff --git a/arch/generic/bits/termios.h b/arch/generic/bits/termios.h
index 434c02c8..124f71d2 100644
--- a/arch/generic/bits/termios.h
+++ b/arch/generic/bits/termios.h
@@ -51,6 +51,7 @@ struct termios {
 #define ONLRET 0000040
 #define OFILL  0000100
 #define OFDEL  0000200
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define NLDLY  0000400
 #define NL0    0000000
 #define NL1    0000400
@@ -70,6 +71,7 @@ struct termios {
 #define FFDLY  0100000
 #define FF0    0000000
 #define FF1    0100000
+#endif
 
 #define VTDLY  0040000
 #define VT0    0000000
diff --git a/arch/generic/bits/vt.h b/arch/generic/bits/vt.h
new file mode 100644
index 00000000..834abfbc
--- /dev/null
+++ b/arch/generic/bits/vt.h
@@ -0,0 +1 @@
+#include <linux/vt.h>
diff --git a/arch/i386/atomic_arch.h b/arch/i386/atomic_arch.h
index 7d2a48a5..047fb68d 100644
--- a/arch/i386/atomic_arch.h
+++ b/arch/i386/atomic_arch.h
@@ -92,10 +92,10 @@ static inline int a_ctz_64(uint64_t x)
 	return r;
 }
 
-#define a_ctz_l a_ctz_l
-static inline int a_ctz_l(unsigned long x)
+#define a_ctz_32 a_ctz_32
+static inline int a_ctz_32(uint32_t x)
 {
-	long r;
+	int r;
 	__asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
 	return r;
 }
diff --git a/arch/i386/bits/limits.h b/arch/i386/bits/limits.h
index 65a3dd64..c340ceb2 100644
--- a/arch/i386/bits/limits.h
+++ b/arch/i386/bits/limits.h
@@ -1,6 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 4096
+#define PAGESIZE 4096
 #define LONG_BIT 32
 #endif
 
diff --git a/arch/i386/bits/ptrace.h b/arch/i386/bits/ptrace.h
new file mode 100644
index 00000000..7d0efbf3
--- /dev/null
+++ b/arch/i386/bits/ptrace.h
@@ -0,0 +1,11 @@
+#define PTRACE_GET_THREAD_AREA		25
+#define PTRACE_SET_THREAD_AREA		26
+#define PTRACE_SYSEMU			31
+#define PTRACE_SYSEMU_SINGLESTEP	32
+#define PTRACE_SINGLEBLOCK		33
+
+#define PT_GET_THREAD_AREA PTRACE_GET_THREAD_AREA
+#define PT_SET_THREAD_AREA PTRACE_SET_THREAD_AREA
+#define PT_SYSEMU PTRACE_SYSEMU
+#define PT_SYSEMU_SINGLESTEP PTRACE_SYSEMU_SINGLESTEP
+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
diff --git a/arch/i386/bits/user.h b/arch/i386/bits/user.h
index 0e343930..33fea986 100644
--- a/arch/i386/bits/user.h
+++ b/arch/i386/bits/user.h
@@ -37,8 +37,8 @@ struct user {
 	int				u_debugreg[8];
 };
 
-#define PAGE_MASK		(~(PAGE_SIZE-1))
-#define NBPG			PAGE_SIZE
+#define PAGE_MASK		(~(PAGESIZE-1))
+#define NBPG			PAGESIZE
 #define UPAGES			1
 #define HOST_TEXT_START_ADDR	(u.start_code)
 #define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
diff --git a/arch/m68k/atomic_arch.h b/arch/m68k/atomic_arch.h
new file mode 100644
index 00000000..b369649a
--- /dev/null
+++ b/arch/m68k/atomic_arch.h
@@ -0,0 +1,8 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__ __volatile__ (
+		"cas.l %0, %2, (%1)"
+		: "+d"(t) : "a"(p), "d"(s) : "memory", "cc");
+	return t;
+}
diff --git a/arch/m68k/bits/alltypes.h.in b/arch/m68k/bits/alltypes.h.in
new file mode 100644
index 00000000..a4a8141f
--- /dev/null
+++ b/arch/m68k/bits/alltypes.h.in
@@ -0,0 +1,31 @@
+#define _Addr int
+#define _Int64 long long
+#define _Reg int
+
+TYPEDEF __builtin_va_list va_list;
+TYPEDEF __builtin_va_list __isoc_va_list;
+
+#ifndef __cplusplus
+TYPEDEF long wchar_t;
+#endif
+
+#if __mcffpu__
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+#else
+TYPEDEF long double float_t;
+TYPEDEF long double double_t;
+#endif
+
+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
+
+TYPEDEF long time_t;
+TYPEDEF long suseconds_t;
+
+TYPEDEF struct { union { int __i[9]; volatile int __vi[9]; unsigned __s[9]; } __u; } pthread_attr_t;
+TYPEDEF struct { union { int __i[6]; volatile int __vi[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile int __vi[6]; volatile void *volatile __p[6]; } __u; } mtx_t;
+TYPEDEF struct { union { int __i[12]; volatile int __vi[12]; void *__p[12]; } __u; } pthread_cond_t;
+TYPEDEF struct { union { int __i[12]; volatile int __vi[12]; void *__p[12]; } __u; } cnd_t;
+TYPEDEF struct { union { int __i[8]; volatile int __vi[8]; void *__p[8]; } __u; } pthread_rwlock_t;
+TYPEDEF struct { union { int __i[5]; volatile int __vi[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/m68k/bits/endian.h b/arch/m68k/bits/endian.h
new file mode 100644
index 00000000..ef074b77
--- /dev/null
+++ b/arch/m68k/bits/endian.h
@@ -0,0 +1 @@
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/arch/m68k/bits/fcntl.h b/arch/m68k/bits/fcntl.h
new file mode 100644
index 00000000..f1c8400f
--- /dev/null
+++ b/arch/m68k/bits/fcntl.h
@@ -0,0 +1,40 @@
+#define O_CREAT        0100
+#define O_EXCL         0200
+#define O_NOCTTY       0400
+#define O_TRUNC       01000
+#define O_APPEND      02000
+#define O_NONBLOCK    04000
+#define O_DSYNC      010000
+#define O_SYNC     04010000
+#define O_RSYNC    04010000
+#define O_DIRECTORY  040000
+#define O_NOFOLLOW  0100000
+#define O_CLOEXEC  02000000
+
+#define O_ASYNC      020000
+#define O_DIRECT    0200000
+#define O_LARGEFILE 0400000
+#define O_NOATIME  01000000
+#define O_PATH    010000000
+#define O_TMPFILE 020200000
+#define O_NDELAY O_NONBLOCK
+
+#define F_DUPFD  0
+#define F_GETFD  1
+#define F_SETFD  2
+#define F_GETFL  3
+#define F_SETFL  4
+
+#define F_SETOWN 8
+#define F_GETOWN 9
+#define F_SETSIG 10
+#define F_GETSIG 11
+
+#define F_GETLK 12
+#define F_SETLK 13
+#define F_SETLKW 14
+
+#define F_SETOWN_EX 15
+#define F_GETOWN_EX 16
+
+#define F_GETOWNER_UIDS 17
diff --git a/arch/m68k/bits/fenv.h b/arch/m68k/bits/fenv.h
new file mode 100644
index 00000000..c90a4a58
--- /dev/null
+++ b/arch/m68k/bits/fenv.h
@@ -0,0 +1,29 @@
+#if __HAVE_68881__ || __mcffpu__
+
+#define FE_INEXACT    8
+#define FE_DIVBYZERO  16
+#define FE_UNDERFLOW  32
+#define FE_OVERFLOW   64
+#define FE_INVALID    128
+
+#define FE_ALL_EXCEPT 0xf8
+
+#define FE_TONEAREST  0
+#define FE_TOWARDZERO 16
+#define FE_DOWNWARD   32
+#define FE_UPWARD     48
+
+#else
+
+#define FE_ALL_EXCEPT 0
+#define FE_TONEAREST  0
+
+#endif
+
+typedef unsigned fexcept_t;
+
+typedef struct {
+	unsigned __control_register, __status_register, __instruction_address;
+} fenv_t;
+
+#define FE_DFL_ENV      ((const fenv_t *) -1)
diff --git a/arch/m68k/bits/float.h b/arch/m68k/bits/float.h
new file mode 100644
index 00000000..0e6899d5
--- /dev/null
+++ b/arch/m68k/bits/float.h
@@ -0,0 +1,39 @@
+#if !__mcffpu__
+
+#define FLT_EVAL_METHOD 2
+
+#define LDBL_TRUE_MIN 3.6451995318824746025e-4951L
+#define LDBL_MIN     1.68105157155604675313e-4932L
+#define LDBL_MAX     1.1897314953572317650e+4932L
+#define LDBL_EPSILON 1.0842021724855044340e-19L
+
+#define LDBL_MANT_DIG 64
+#define LDBL_MIN_EXP (-16382)
+#define LDBL_MAX_EXP 16384
+
+#define LDBL_DIG 18
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_10_EXP 4932
+
+#define DECIMAL_DIG 21
+
+#else
+
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 4.94065645841246544177e-324L
+#define LDBL_MIN 2.22507385850720138309e-308L
+#define LDBL_MAX 1.79769313486231570815e+308L
+#define LDBL_EPSILON 2.22044604925031308085e-16L
+
+#define LDBL_MANT_DIG 53
+#define LDBL_MIN_EXP (-1021)
+#define LDBL_MAX_EXP 1024
+
+#define LDBL_DIG 15
+#define LDBL_MIN_10_EXP (-307)
+#define LDBL_MAX_10_EXP 308
+
+#define DECIMAL_DIG 17
+
+#endif
diff --git a/arch/m68k/bits/limits.h b/arch/m68k/bits/limits.h
new file mode 100644
index 00000000..fbc6d238
--- /dev/null
+++ b/arch/m68k/bits/limits.h
@@ -0,0 +1,7 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define LONG_BIT 32
+#endif
+
+#define LONG_MAX  0x7fffffffL
+#define LLONG_MAX  0x7fffffffffffffffLL
diff --git a/arch/m68k/bits/posix.h b/arch/m68k/bits/posix.h
new file mode 100644
index 00000000..30a38714
--- /dev/null
+++ b/arch/m68k/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_ILP32_OFFBIG  1
+#define _POSIX_V7_ILP32_OFFBIG  1
diff --git a/arch/m68k/bits/ptrace.h b/arch/m68k/bits/ptrace.h
new file mode 100644
index 00000000..da93e7a7
--- /dev/null
+++ b/arch/m68k/bits/ptrace.h
@@ -0,0 +1,2 @@
+#define PTRACE_GET_THREAD_AREA	25
+#define PTRACE_SINGLEBLOCK	33
diff --git a/arch/m68k/bits/reg.h b/arch/m68k/bits/reg.h
new file mode 100644
index 00000000..99201f70
--- /dev/null
+++ b/arch/m68k/bits/reg.h
@@ -0,0 +1,45 @@
+#undef __WORDSIZE
+#define __WORDSIZE 32
+#define PT_D1 0
+#define PT_D2 1
+#define PT_D3 2
+#define PT_D4 3
+#define PT_D5 4
+#define PT_D6 5
+#define PT_D7 6
+#define PT_A0 7
+#define PT_A1 8
+#define PT_A2 9
+#define PT_A3 10
+#define PT_A4 11
+#define PT_A5 12
+#define PT_A6 13
+#define PT_D0 14
+#define PT_USP 15
+#define PT_ORIG_D0 16
+#define PT_SR 17
+#define PT_PC 18
+
+#if __mcffpu__
+#define PT_FP0 21
+#define PT_FP1 23
+#define PT_FP2 25
+#define PT_FP3 27
+#define PT_FP4 29
+#define PT_FP5 31
+#define PT_FP6 33
+#define PT_FP7 35
+#else
+#define PT_FP0 21
+#define PT_FP1 24
+#define PT_FP2 27
+#define PT_FP3 30
+#define PT_FP4 33
+#define PT_FP5 36
+#define PT_FP6 39
+#define PT_FP7 42
+#endif
+
+#define PT_FPCR 45
+#define PT_FPSR 46
+#define PT_FPIAR 47
diff --git a/arch/m68k/bits/setjmp.h b/arch/m68k/bits/setjmp.h
new file mode 100644
index 00000000..5e091fb4
--- /dev/null
+++ b/arch/m68k/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long __jmp_buf[39];
diff --git a/arch/m68k/bits/signal.h b/arch/m68k/bits/signal.h
new file mode 100644
index 00000000..2c369ca3
--- /dev/null
+++ b/arch/m68k/bits/signal.h
@@ -0,0 +1,140 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+#endif
+
+#ifdef _GNU_SOURCE
+enum { R_D0 = 0 };
+#define R_D0 R_D0
+enum { R_D1 = 1 };
+#define R_D1 R_D1
+enum { R_D2 = 2 };
+#define R_D2 R_D2
+enum { R_D3 = 3 };
+#define R_D3 R_D3
+enum { R_D4 = 4 };
+#define R_D4 R_D4
+enum { R_D5 = 5 };
+#define R_D5 R_D5
+enum { R_D6 = 6 };
+#define R_D6 R_D6
+enum { R_D7 = 7 };
+#define R_D7 R_D7
+enum { R_A0 = 8 };
+#define R_A0 R_A0
+enum { R_A1 = 9 };
+#define R_A1 R_A1
+enum { R_A2 = 10 };
+#define R_A2 R_A2
+enum { R_A3 = 11 };
+#define R_A3 R_A3
+enum { R_A4 = 12 };
+#define R_A4 R_A4
+enum { R_A5 = 13 };
+#define R_A5 R_A5
+enum { R_A6 = 14 };
+#define R_A6 R_A6
+enum { R_A7 = 15 };
+#define R_A7 R_A7
+enum { R_SP = 15 };
+#define R_SP R_SP
+enum { R_PC = 16 };
+#define R_PC R_PC
+enum { R_PS = 17 };
+#define R_PS R_PS
+#endif
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+struct sigcontext {
+	unsigned long sc_mask, sc_usp, sc_d0, sc_d1, sc_a0, sc_a1;
+	unsigned short sc_sr;
+	unsigned long sc_pc;
+	unsigned short sc_formatvec;
+	unsigned long sc_fpregs[6], sc_fpcntl[3];
+	unsigned char sc_fpstate[216];
+};
+
+typedef int greg_t, gregset_t[18];
+typedef struct {
+	int f_pcr, f_psr, f_fpiaddr, f_fpregs[8][3];
+} fpregset_t;
+
+typedef struct {
+	int version;
+	gregset_t gregs;
+	fpregset_t fpregs;
+} mcontext_t;
+#else
+typedef struct {
+	int __version;
+	int __gregs[18];
+	int __fpregs[27];
+} mcontext_t;
+#endif
+
+struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+};
+
+typedef struct __ucontext {
+	unsigned long uc_flags;
+	struct __ucontext *uc_link;
+	stack_t uc_stack;
+	mcontext_t uc_mcontext;
+	long __reserved[80];
+	sigset_t uc_sigmask;
+} ucontext_t;
+
+#define SA_NOCLDSTOP  1
+#define SA_NOCLDWAIT  2
+#define SA_SIGINFO    4
+#define SA_ONSTACK    0x08000000
+#define SA_RESTART    0x10000000
+#define SA_NODEFER    0x40000000
+#define SA_RESETHAND  0x80000000
+#define SA_RESTORER   0x04000000
+
+#endif
+
+#define SIGHUP    1
+#define SIGINT    2
+#define SIGQUIT   3
+#define SIGILL    4
+#define SIGTRAP   5
+#define SIGABRT   6
+#define SIGIOT    SIGABRT
+#define SIGBUS    7
+#define SIGFPE    8
+#define SIGKILL   9
+#define SIGUSR1   10
+#define SIGSEGV   11
+#define SIGUSR2   12
+#define SIGPIPE   13
+#define SIGALRM   14
+#define SIGTERM   15
+#define SIGSTKFLT 16
+#define SIGCHLD   17
+#define SIGCONT   18
+#define SIGSTOP   19
+#define SIGTSTP   20
+#define SIGTTIN   21
+#define SIGTTOU   22
+#define SIGURG    23
+#define SIGXCPU   24
+#define SIGXFSZ   25
+#define SIGVTALRM 26
+#define SIGPROF   27
+#define SIGWINCH  28
+#define SIGIO     29
+#define SIGPOLL   29
+#define SIGPWR    30
+#define SIGSYS    31
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 65
diff --git a/arch/m68k/bits/stat.h b/arch/m68k/bits/stat.h
new file mode 100644
index 00000000..0f7b66a1
--- /dev/null
+++ b/arch/m68k/bits/stat.h
@@ -0,0 +1,21 @@
+/* copied from kernel definition, but with padding replaced
+ * by the corresponding correctly-sized userspace types. */
+
+struct stat {
+	dev_t st_dev;
+	short __st_dev_padding;
+	long __st_ino_truncated;
+	mode_t st_mode;
+	nlink_t st_nlink;
+	uid_t st_uid;
+	gid_t st_gid;
+	dev_t st_rdev;
+	short __st_rdev_padding;
+	off_t st_size;
+	blksize_t st_blksize;
+	blkcnt_t st_blocks;
+	struct timespec st_atim;
+	struct timespec st_mtim;
+	struct timespec st_ctim;
+	ino_t st_ino;
+};
diff --git a/arch/m68k/bits/stdint.h b/arch/m68k/bits/stdint.h
new file mode 100644
index 00000000..d1b27121
--- /dev/null
+++ b/arch/m68k/bits/stdint.h
@@ -0,0 +1,20 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN  INT32_MIN
+#define INT_FAST32_MIN  INT32_MIN
+
+#define INT_FAST16_MAX  INT32_MAX
+#define INT_FAST32_MAX  INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INTPTR_MIN      INT32_MIN
+#define INTPTR_MAX      INT32_MAX
+#define UINTPTR_MAX     UINT32_MAX
+#define PTRDIFF_MIN     INT32_MIN
+#define PTRDIFF_MAX     INT32_MAX
+#define SIZE_MAX        UINT32_MAX
diff --git a/arch/m68k/bits/syscall.h.in b/arch/m68k/bits/syscall.h.in
new file mode 100644
index 00000000..89cf114c
--- /dev/null
+++ b/arch/m68k/bits/syscall.h.in
@@ -0,0 +1,361 @@
+#define __NR_restart_syscall	  0
+#define __NR_exit		  1
+#define __NR_fork		  2
+#define __NR_read		  3
+#define __NR_write		  4
+#define __NR_open		  5
+#define __NR_close		  6
+#define __NR_waitpid		  7
+#define __NR_creat		  8
+#define __NR_link		  9
+#define __NR_unlink		 10
+#define __NR_execve		 11
+#define __NR_chdir		 12
+#define __NR_time		 13
+#define __NR_mknod		 14
+#define __NR_chmod		 15
+#define __NR_chown		 16
+#define __NR_oldstat		 18
+#define __NR_lseek		 19
+#define __NR_getpid		 20
+#define __NR_mount		 21
+#define __NR_umount		 22
+#define __NR_setuid		 23
+#define __NR_getuid		 24
+#define __NR_stime		 25
+#define __NR_ptrace		 26
+#define __NR_alarm		 27
+#define __NR_oldfstat		 28
+#define __NR_pause		 29
+#define __NR_utime		 30
+#define __NR_access		 33
+#define __NR_nice		 34
+#define __NR_sync		 36
+#define __NR_kill		 37
+#define __NR_rename		 38
+#define __NR_mkdir		 39
+#define __NR_rmdir		 40
+#define __NR_dup		 41
+#define __NR_pipe		 42
+#define __NR_times		 43
+#define __NR_brk		 45
+#define __NR_setgid		 46
+#define __NR_getgid		 47
+#define __NR_signal		 48
+#define __NR_geteuid		 49
+#define __NR_getegid		 50
+#define __NR_acct		 51
+#define __NR_umount2		 52
+#define __NR_ioctl		 54
+#define __NR_fcntl		 55
+#define __NR_setpgid		 57
+#define __NR_umask		 60
+#define __NR_chroot		 61
+#define __NR_ustat		 62
+#define __NR_dup2		 63
+#define __NR_getppid		 64
+#define __NR_getpgrp		 65
+#define __NR_setsid		 66
+#define __NR_sigaction		 67
+#define __NR_sgetmask		 68
+#define __NR_ssetmask		 69
+#define __NR_setreuid		 70
+#define __NR_setregid		 71
+#define __NR_sigsuspend		 72
+#define __NR_sigpending		 73
+#define __NR_sethostname	 74
+#define __NR_setrlimit		 75
+#define __NR_getrlimit		 76
+#define __NR_getrusage		 77
+#define __NR_gettimeofday	 78
+#define __NR_settimeofday	 79
+#define __NR_getgroups		 80
+#define __NR_setgroups		 81
+#define __NR_select		 82
+#define __NR_symlink		 83
+#define __NR_oldlstat		 84
+#define __NR_readlink		 85
+#define __NR_uselib		 86
+#define __NR_swapon		 87
+#define __NR_reboot		 88
+#define __NR_readdir		 89
+#define __NR_mmap		 90
+#define __NR_munmap		 91
+#define __NR_truncate		 92
+#define __NR_ftruncate		 93
+#define __NR_fchmod		 94
+#define __NR_fchown		 95
+#define __NR_getpriority	 96
+#define __NR_setpriority	 97
+#define __NR_statfs		 99
+#define __NR_fstatfs		100
+#define __NR_socketcall		102
+#define __NR_syslog		103
+#define __NR_setitimer		104
+#define __NR_getitimer		105
+#define __NR_stat		106
+#define __NR_lstat		107
+#define __NR_fstat		108
+#define __NR_vhangup		111
+#define __NR_wait4		114
+#define __NR_swapoff		115
+#define __NR_sysinfo		116
+#define __NR_ipc		117
+#define __NR_fsync		118
+#define __NR_sigreturn		119
+#define __NR_clone		120
+#define __NR_setdomainname	121
+#define __NR_uname		122
+#define __NR_cacheflush		123
+#define __NR_adjtimex		124
+#define __NR_mprotect		125
+#define __NR_sigprocmask	126
+#define __NR_create_module	127
+#define __NR_init_module	128
+#define __NR_delete_module	129
+#define __NR_get_kernel_syms	130
+#define __NR_quotactl		131
+#define __NR_getpgid		132
+#define __NR_fchdir		133
+#define __NR_bdflush		134
+#define __NR_sysfs		135
+#define __NR_personality	136
+#define __NR_setfsuid		138
+#define __NR_setfsgid		139
+#define __NR__llseek		140
+#define __NR_getdents		141
+#define __NR__newselect		142
+#define __NR_flock		143
+#define __NR_msync		144
+#define __NR_readv		145
+#define __NR_writev		146
+#define __NR_getsid		147
+#define __NR_fdatasync		148
+#define __NR__sysctl		149
+#define __NR_mlock		150
+#define __NR_munlock		151
+#define __NR_mlockall		152
+#define __NR_munlockall		153
+#define __NR_sched_setparam		154
+#define __NR_sched_getparam		155
+#define __NR_sched_setscheduler		156
+#define __NR_sched_getscheduler		157
+#define __NR_sched_yield		158
+#define __NR_sched_get_priority_max	159
+#define __NR_sched_get_priority_min	160
+#define __NR_sched_rr_get_interval	161
+#define __NR_nanosleep		162
+#define __NR_mremap		163
+#define __NR_setresuid		164
+#define __NR_getresuid		165
+#define __NR_getpagesize	166
+#define __NR_query_module	167
+#define __NR_poll		168
+#define __NR_nfsservctl		169
+#define __NR_setresgid		170
+#define __NR_getresgid		171
+#define __NR_prctl		172
+#define __NR_rt_sigreturn	173
+#define __NR_rt_sigaction	174
+#define __NR_rt_sigprocmask	175
+#define __NR_rt_sigpending	176
+#define __NR_rt_sigtimedwait	177
+#define __NR_rt_sigqueueinfo	178
+#define __NR_rt_sigsuspend	179
+#define __NR_pread64		180
+#define __NR_pwrite64		181
+#define __NR_lchown		182
+#define __NR_getcwd		183
+#define __NR_capget		184
+#define __NR_capset		185
+#define __NR_sigaltstack	186
+#define __NR_sendfile		187
+#define __NR_getpmsg		188
+#define __NR_putpmsg		189
+#define __NR_vfork		190
+#define __NR_ugetrlimit		191
+#define __NR_mmap2		192
+#define __NR_truncate64		193
+#define __NR_ftruncate64	194
+#define __NR_stat64		195
+#define __NR_lstat64		196
+#define __NR_fstat64		197
+#define __NR_chown32		198
+#define __NR_getuid32		199
+#define __NR_getgid32		200
+#define __NR_geteuid32		201
+#define __NR_getegid32		202
+#define __NR_setreuid32		203
+#define __NR_setregid32		204
+#define __NR_getgroups32	205
+#define __NR_setgroups32	206
+#define __NR_fchown32		207
+#define __NR_setresuid32	208
+#define __NR_getresuid32	209
+#define __NR_setresgid32	210
+#define __NR_getresgid32	211
+#define __NR_lchown32		212
+#define __NR_setuid32		213
+#define __NR_setgid32		214
+#define __NR_setfsuid32		215
+#define __NR_setfsgid32		216
+#define __NR_pivot_root		217
+#define __NR_getdents64		220
+#define __NR_gettid		221
+#define __NR_tkill		222
+#define __NR_setxattr		223
+#define __NR_lsetxattr		224
+#define __NR_fsetxattr		225
+#define __NR_getxattr		226
+#define __NR_lgetxattr		227
+#define __NR_fgetxattr		228
+#define __NR_listxattr		229
+#define __NR_llistxattr		230
+#define __NR_flistxattr		231
+#define __NR_removexattr	232
+#define __NR_lremovexattr	233
+#define __NR_fremovexattr	234
+#define __NR_futex		235
+#define __NR_sendfile64		236
+#define __NR_mincore		237
+#define __NR_madvise		238
+#define __NR_fcntl64		239
+#define __NR_readahead		240
+#define __NR_io_setup		241
+#define __NR_io_destroy		242
+#define __NR_io_getevents	243
+#define __NR_io_submit		244
+#define __NR_io_cancel		245
+#define __NR_fadvise64		246
+#define __NR_exit_group		247
+#define __NR_lookup_dcookie	248
+#define __NR_epoll_create	249
+#define __NR_epoll_ctl		250
+#define __NR_epoll_wait		251
+#define __NR_remap_file_pages	252
+#define __NR_set_tid_address	253
+#define __NR_timer_create	254
+#define __NR_timer_settime	255
+#define __NR_timer_gettime	256
+#define __NR_timer_getoverrun	257
+#define __NR_timer_delete	258
+#define __NR_clock_settime	259
+#define __NR_clock_gettime	260
+#define __NR_clock_getres	261
+#define __NR_clock_nanosleep	262
+#define __NR_statfs64		263
+#define __NR_fstatfs64		264
+#define __NR_tgkill		265
+#define __NR_utimes		266
+#define __NR_fadvise64_64	267
+#define __NR_mbind		268
+#define __NR_get_mempolicy	269
+#define __NR_set_mempolicy	270
+#define __NR_mq_open		271
+#define __NR_mq_unlink		272
+#define __NR_mq_timedsend	273
+#define __NR_mq_timedreceive	274
+#define __NR_mq_notify		275
+#define __NR_mq_getsetattr	276
+#define __NR_waitid		277
+#define __NR_add_key		279
+#define __NR_request_key	280
+#define __NR_keyctl		281
+#define __NR_ioprio_set		282
+#define __NR_ioprio_get		283
+#define __NR_inotify_init	284
+#define __NR_inotify_add_watch	285
+#define __NR_inotify_rm_watch	286
+#define __NR_migrate_pages	287
+#define __NR_openat		288
+#define __NR_mkdirat		289
+#define __NR_mknodat		290
+#define __NR_fchownat		291
+#define __NR_futimesat		292
+#define __NR_fstatat64		293
+#define __NR_unlinkat		294
+#define __NR_renameat		295
+#define __NR_linkat		296
+#define __NR_symlinkat		297
+#define __NR_readlinkat		298
+#define __NR_fchmodat		299
+#define __NR_faccessat		300
+#define __NR_pselect6		301
+#define __NR_ppoll		302
+#define __NR_unshare		303
+#define __NR_set_robust_list	304
+#define __NR_get_robust_list	305
+#define __NR_splice		306
+#define __NR_sync_file_range	307
+#define __NR_tee		308
+#define __NR_vmsplice		309
+#define __NR_move_pages		310
+#define __NR_sched_setaffinity	311
+#define __NR_sched_getaffinity	312
+#define __NR_kexec_load		313
+#define __NR_getcpu		314
+#define __NR_epoll_pwait	315
+#define __NR_utimensat		316
+#define __NR_signalfd		317
+#define __NR_timerfd_create	318
+#define __NR_eventfd		319
+#define __NR_fallocate		320
+#define __NR_timerfd_settime	321
+#define __NR_timerfd_gettime	322
+#define __NR_signalfd4		323
+#define __NR_eventfd2		324
+#define __NR_epoll_create1	325
+#define __NR_dup3		326
+#define __NR_pipe2		327
+#define __NR_inotify_init1	328
+#define __NR_preadv		329
+#define __NR_pwritev		330
+#define __NR_rt_tgsigqueueinfo	331
+#define __NR_perf_event_open	332
+#define __NR_get_thread_area	333
+#define __NR_set_thread_area	334
+#define __NR_atomic_cmpxchg_32	335
+#define __NR_atomic_barrier	336
+#define __NR_fanotify_init	337
+#define __NR_fanotify_mark	338
+#define __NR_prlimit64		339
+#define __NR_name_to_handle_at	340
+#define __NR_open_by_handle_at	341
+#define __NR_clock_adjtime	342
+#define __NR_syncfs		343
+#define __NR_setns		344
+#define __NR_process_vm_readv	345
+#define __NR_process_vm_writev	346
+#define __NR_kcmp		347
+#define __NR_finit_module	348
+#define __NR_sched_setattr	349
+#define __NR_sched_getattr	350
+#define __NR_renameat2		351
+#define __NR_getrandom		352
+#define __NR_memfd_create	353
+#define __NR_bpf		354
+#define __NR_execveat		355
+#define __NR_socket		356
+#define __NR_socketpair		357
+#define __NR_bind		358
+#define __NR_connect		359
+#define __NR_listen		360
+#define __NR_accept4		361
+#define __NR_getsockopt		362
+#define __NR_setsockopt		363
+#define __NR_getsockname	364
+#define __NR_getpeername	365
+#define __NR_sendto		366
+#define __NR_sendmsg		367
+#define __NR_recvfrom		368
+#define __NR_recvmsg		369
+#define __NR_shutdown		370
+#define __NR_recvmmsg		371
+#define __NR_sendmmsg		372
+#define __NR_userfaultfd	373
+#define __NR_membarrier		374
+#define __NR_mlock2		375
+#define __NR_copy_file_range	376
+#define __NR_preadv2		377
+#define __NR_pwritev2		378
+#define __NR_statx		379
diff --git a/arch/m68k/bits/user.h b/arch/m68k/bits/user.h
new file mode 100644
index 00000000..9a4ca128
--- /dev/null
+++ b/arch/m68k/bits/user.h
@@ -0,0 +1,33 @@
+#undef __WORDSIZE
+#define __WORDSIZE 32
+
+struct user_m68kfp_struct {
+	unsigned long fpregs[24], fpcntl[3];
+};
+
+struct user_regs_struct {
+	long d1, d2, d3, d4, d5, d6, d7;
+	long a0, a1, a2, a3, a4, a5, a6;
+	long d0, usp, orig_d0;
+	short stkadj, sr;
+	long pc;
+	short fmtvec, __pad;
+};
+
+struct user {
+	struct user_regs_struct regs;
+	int u_fpvalid;
+	struct user_m68kfp_struct m68kfp;
+	unsigned long u_tsize, u_dsize, u_ssize, start_code, start_stack;
+	long signal;
+	int reserved;
+	unsigned long u_ar0;
+	struct user_m68kfp_struct *u_fpstate;
+	unsigned long magic;
+	char u_comm[32];
+};
+
+#define NBPG			4096
+#define UPAGES			1
+#define HOST_TEXT_START_ADDR	(u.start_code)
+#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
diff --git a/arch/m68k/crt_arch.h b/arch/m68k/crt_arch.h
new file mode 100644
index 00000000..48a42f29
--- /dev/null
+++ b/arch/m68k/crt_arch.h
@@ -0,0 +1,14 @@
+__asm__(
+".text\n"
+".weak _DYNAMIC \n"
+".hidden _DYNAMIC \n"
+".global " START "\n"
+START ":\n"
+"	suba.l %fp,%fp \n"
+"	movea.l %sp,%a0 \n"
+"	lea _DYNAMIC-.-8,%a1 \n"
+"	pea (%pc,%a1) \n"
+"	pea (%a0) \n"
+"	lea " START "_c-.-8,%a1 \n"
+"	jsr (%pc,%a1) \n"
+);
diff --git a/arch/m68k/pthread_arch.h b/arch/m68k/pthread_arch.h
new file mode 100644
index 00000000..02d5b8a0
--- /dev/null
+++ b/arch/m68k/pthread_arch.h
@@ -0,0 +1,13 @@
+static inline struct pthread *__pthread_self()
+{
+	uintptr_t tp = __syscall(SYS_get_thread_area);
+	return (pthread_t)(tp - 0x7000 - sizeof(struct pthread));
+}
+
+#define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
+
+#define DTP_OFFSET 0x8000
+
+#define MC_PC gregs[R_PC]
diff --git a/arch/m68k/reloc.h b/arch/m68k/reloc.h
new file mode 100644
index 00000000..f920b39e
--- /dev/null
+++ b/arch/m68k/reloc.h
@@ -0,0 +1,30 @@
+#if __HAVE_68881__
+#define FP_SUFFIX ""
+#elif __mcffpu__
+#define FP_SUFFIX "-fp64"
+#else
+#define FP_SUFFIX "-sf"
+#endif
+
+#define LDSO_ARCH "m68k" FP_SUFFIX
+
+#define TPOFF_K (-0x7000)
+
+#define REL_SYMBOLIC    R_68K_32
+#define REL_OFFSET      R_68K_PC32
+#define REL_GOT         R_68K_GLOB_DAT
+#define REL_PLT         R_68K_JMP_SLOT
+#define REL_RELATIVE    R_68K_RELATIVE
+#define REL_COPY        R_68K_COPY
+#define REL_DTPMOD      R_68K_TLS_DTPMOD32
+#define REL_DTPOFF      R_68K_TLS_DTPREL32
+#define REL_TPOFF       R_68K_TLS_TPREL32
+
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+	"move.l %1,%%sp ; jmp (%0)" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+	".hidden " #sym "\n" \
+	"lea " #sym "-.-8,%0 \n" \
+	"lea (%%pc,%0),%0 \n" \
+	: "=a"(*fp) : : "memory" )
diff --git a/arch/m68k/syscall_arch.h b/arch/m68k/syscall_arch.h
new file mode 100644
index 00000000..af79c306
--- /dev/null
+++ b/arch/m68k/syscall_arch.h
@@ -0,0 +1,91 @@
+#define __SYSCALL_LL_E(x) \
+((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
+
+static __inline long __syscall0(long n)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		:
+		: "memory");
+	return d0;
+}
+
+static inline long __syscall1(long n, long a)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	register unsigned long d1 __asm__("d1") = a;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		: "r"(d1)
+		: "memory");
+	return d0;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	register unsigned long d1 __asm__("d1") = a;
+	register unsigned long d2 __asm__("d2") = b;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		: "r"(d1), "r"(d2)
+		: "memory");
+	return d0;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	register unsigned long d1 __asm__("d1") = a;
+	register unsigned long d2 __asm__("d2") = b;
+	register unsigned long d3 __asm__("d3") = c;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		: "r"(d1), "r"(d2), "r"(d3)
+		: "memory");
+	return d0;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	register unsigned long d1 __asm__("d1") = a;
+	register unsigned long d2 __asm__("d2") = b;
+	register unsigned long d3 __asm__("d3") = c;
+	register unsigned long d4 __asm__("d4") = d;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		: "r"(d1), "r"(d2), "r"(d3), "r"(d4)
+		: "memory");
+	return d0;
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	register unsigned long d1 __asm__("d1") = a;
+	register unsigned long d2 __asm__("d2") = b;
+	register unsigned long d3 __asm__("d3") = c;
+	register unsigned long d4 __asm__("d4") = d;
+	register unsigned long d5 __asm__("d5") = e;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		: "r"(d1), "r"(d2), "r"(d3), "r"(d4), "r"(d5)
+		: "memory");
+	return d0;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+	register unsigned long d0 __asm__("d0") = n;
+	register unsigned long d1 __asm__("d1") = a;
+	register unsigned long d2 __asm__("d2") = b;
+	register unsigned long d3 __asm__("d3") = c;
+	register unsigned long d4 __asm__("d4") = d;
+	register unsigned long d5 __asm__("d5") = e;
+	register unsigned long a0 __asm__("a0") = f;
+	__asm__ __volatile__ ("trap #0" : "+r"(d0)
+		: "r"(d1), "r"(d2), "r"(d3), "r"(d4), "r"(d5), "r"(a0)
+		: "memory");
+	return d0;
+}
+
+#define SYSCALL_USE_SOCKETCALL
+#define SYSCALL_IPC_BROKEN_MODE
diff --git a/arch/microblaze/syscall_arch.h b/arch/microblaze/syscall_arch.h
index 8e2de7ea..6cf631ad 100644
--- a/arch/microblaze/syscall_arch.h
+++ b/arch/microblaze/syscall_arch.h
@@ -102,3 +102,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 #define SYSCALL_NO_INLINE
 
 #endif
+
+#define SYSCALL_IPC_BROKEN_MODE
diff --git a/arch/mips/bits/hwcap.h b/arch/mips/bits/hwcap.h
index 05cffba4..13e86fe7 100644
--- a/arch/mips/bits/hwcap.h
+++ b/arch/mips/bits/hwcap.h
@@ -1,2 +1,3 @@
 #define HWCAP_MIPS_R6		(1 << 0)
 #define HWCAP_MIPS_MSA		(1 << 1)
+#define HWCAP_MIPS_CRC32	(1 << 2)
diff --git a/arch/mips/bits/mman.h b/arch/mips/bits/mman.h
index c68aea88..9027bb63 100644
--- a/arch/mips/bits/mman.h
+++ b/arch/mips/bits/mman.h
@@ -18,6 +18,7 @@
 #define MAP_STACK      0x40000
 #undef MAP_HUGETLB
 #define MAP_HUGETLB    0x80000
+#undef MAP_SYNC
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #undef MADV_SOFT_OFFLINE
diff --git a/arch/mips/bits/ptrace.h b/arch/mips/bits/ptrace.h
new file mode 100644
index 00000000..77a01c06
--- /dev/null
+++ b/arch/mips/bits/ptrace.h
@@ -0,0 +1,9 @@
+#define PTRACE_GET_THREAD_AREA	25
+#define PTRACE_SET_THREAD_AREA	26
+#define PTRACE_PEEKTEXT_3264	0xc0
+#define PTRACE_PEEKDATA_3264	0xc1
+#define PTRACE_POKETEXT_3264	0xc2
+#define PTRACE_POKEDATA_3264	0xc3
+#define PTRACE_GET_THREAD_AREA_3264	0xc4
+#define PTRACE_GET_WATCH_REGS	0xd0
+#define PTRACE_SET_WATCH_REGS	0xd1
diff --git a/arch/mips/bits/socket.h b/arch/mips/bits/socket.h
index 191ebdb5..b82c7d34 100644
--- a/arch/mips/bits/socket.h
+++ b/arch/mips/bits/socket.h
@@ -45,6 +45,7 @@ struct cmsghdr {
 #define SO_BSDCOMPAT    14
 #define SO_PASSCRED     17
 #define SO_PEERCRED     18
+#define SO_PEERSEC      30
 #define SO_SNDBUFFORCE  31
 #define SO_RCVBUFFORCE  33
 
diff --git a/arch/mips/bits/termios.h b/arch/mips/bits/termios.h
index 6a1205d7..f7b9dd2e 100644
--- a/arch/mips/bits/termios.h
+++ b/arch/mips/bits/termios.h
@@ -52,6 +52,7 @@ struct termios {
 #define ONLRET 0000040
 #define OFILL  0000100
 #define OFDEL  0000200
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define NLDLY  0000400
 #define NL0    0000000
 #define NL1    0000400
@@ -71,6 +72,7 @@ struct termios {
 #define FFDLY  0100000
 #define FF0    0000000
 #define FF1    0100000
+#endif
 
 #define VTDLY  0040000
 #define VT0    0000000
@@ -163,5 +165,5 @@ struct termios {
 #define EXTPROC 0200000
 
 #define XTABS  0014000
-#define TIOCSER_TEMT 1
+#define TIOCSER_TEMT 0x01
 #endif
diff --git a/arch/mips/pthread_arch.h b/arch/mips/pthread_arch.h
index e5812655..5fea15ad 100644
--- a/arch/mips/pthread_arch.h
+++ b/arch/mips/pthread_arch.h
@@ -11,6 +11,7 @@ static inline struct pthread *__pthread_self()
 }
 
 #define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
 
 #define DTP_OFFSET 0x8000
diff --git a/arch/mips64/bits/hwcap.h b/arch/mips64/bits/hwcap.h
index 05cffba4..13e86fe7 100644
--- a/arch/mips64/bits/hwcap.h
+++ b/arch/mips64/bits/hwcap.h
@@ -1,2 +1,3 @@
 #define HWCAP_MIPS_R6		(1 << 0)
 #define HWCAP_MIPS_MSA		(1 << 1)
+#define HWCAP_MIPS_CRC32	(1 << 2)
diff --git a/arch/mips64/bits/mman.h b/arch/mips64/bits/mman.h
index c68aea88..9027bb63 100644
--- a/arch/mips64/bits/mman.h
+++ b/arch/mips64/bits/mman.h
@@ -18,6 +18,7 @@
 #define MAP_STACK      0x40000
 #undef MAP_HUGETLB
 #define MAP_HUGETLB    0x80000
+#undef MAP_SYNC
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #undef MADV_SOFT_OFFLINE
diff --git a/arch/mips64/bits/ptrace.h b/arch/mips64/bits/ptrace.h
new file mode 100644
index 00000000..77a01c06
--- /dev/null
+++ b/arch/mips64/bits/ptrace.h
@@ -0,0 +1,9 @@
+#define PTRACE_GET_THREAD_AREA	25
+#define PTRACE_SET_THREAD_AREA	26
+#define PTRACE_PEEKTEXT_3264	0xc0
+#define PTRACE_PEEKDATA_3264	0xc1
+#define PTRACE_POKETEXT_3264	0xc2
+#define PTRACE_POKEDATA_3264	0xc3
+#define PTRACE_GET_THREAD_AREA_3264	0xc4
+#define PTRACE_GET_WATCH_REGS	0xd0
+#define PTRACE_SET_WATCH_REGS	0xd1
diff --git a/arch/mips64/bits/socket.h b/arch/mips64/bits/socket.h
index cf801797..5aff0d91 100644
--- a/arch/mips64/bits/socket.h
+++ b/arch/mips64/bits/socket.h
@@ -61,6 +61,7 @@ struct cmsghdr {
 #define SO_BSDCOMPAT    14
 #define SO_PASSCRED     17
 #define SO_PEERCRED     18
+#define SO_PEERSEC      30
 #define SO_SNDBUFFORCE  31
 #define SO_RCVBUFFORCE  33
 
diff --git a/arch/mips64/bits/termios.h b/arch/mips64/bits/termios.h
index 6a1205d7..f7b9dd2e 100644
--- a/arch/mips64/bits/termios.h
+++ b/arch/mips64/bits/termios.h
@@ -52,6 +52,7 @@ struct termios {
 #define ONLRET 0000040
 #define OFILL  0000100
 #define OFDEL  0000200
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define NLDLY  0000400
 #define NL0    0000000
 #define NL1    0000400
@@ -71,6 +72,7 @@ struct termios {
 #define FFDLY  0100000
 #define FF0    0000000
 #define FF1    0100000
+#endif
 
 #define VTDLY  0040000
 #define VT0    0000000
@@ -163,5 +165,5 @@ struct termios {
 #define EXTPROC 0200000
 
 #define XTABS  0014000
-#define TIOCSER_TEMT 1
+#define TIOCSER_TEMT 0x01
 #endif
diff --git a/arch/mips64/pthread_arch.h b/arch/mips64/pthread_arch.h
index e5812655..5fea15ad 100644
--- a/arch/mips64/pthread_arch.h
+++ b/arch/mips64/pthread_arch.h
@@ -11,6 +11,7 @@ static inline struct pthread *__pthread_self()
 }
 
 #define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
 
 #define DTP_OFFSET 0x8000
diff --git a/arch/mipsn32/bits/hwcap.h b/arch/mipsn32/bits/hwcap.h
index 05cffba4..13e86fe7 100644
--- a/arch/mipsn32/bits/hwcap.h
+++ b/arch/mipsn32/bits/hwcap.h
@@ -1,2 +1,3 @@
 #define HWCAP_MIPS_R6		(1 << 0)
 #define HWCAP_MIPS_MSA		(1 << 1)
+#define HWCAP_MIPS_CRC32	(1 << 2)
diff --git a/arch/mipsn32/bits/mman.h b/arch/mipsn32/bits/mman.h
index c68aea88..9027bb63 100644
--- a/arch/mipsn32/bits/mman.h
+++ b/arch/mipsn32/bits/mman.h
@@ -18,6 +18,7 @@
 #define MAP_STACK      0x40000
 #undef MAP_HUGETLB
 #define MAP_HUGETLB    0x80000
+#undef MAP_SYNC
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #undef MADV_SOFT_OFFLINE
diff --git a/arch/mipsn32/bits/ptrace.h b/arch/mipsn32/bits/ptrace.h
new file mode 100644
index 00000000..77a01c06
--- /dev/null
+++ b/arch/mipsn32/bits/ptrace.h
@@ -0,0 +1,9 @@
+#define PTRACE_GET_THREAD_AREA	25
+#define PTRACE_SET_THREAD_AREA	26
+#define PTRACE_PEEKTEXT_3264	0xc0
+#define PTRACE_PEEKDATA_3264	0xc1
+#define PTRACE_POKETEXT_3264	0xc2
+#define PTRACE_POKEDATA_3264	0xc3
+#define PTRACE_GET_THREAD_AREA_3264	0xc4
+#define PTRACE_GET_WATCH_REGS	0xd0
+#define PTRACE_SET_WATCH_REGS	0xd1
diff --git a/arch/mipsn32/bits/socket.h b/arch/mipsn32/bits/socket.h
index 191ebdb5..b82c7d34 100644
--- a/arch/mipsn32/bits/socket.h
+++ b/arch/mipsn32/bits/socket.h
@@ -45,6 +45,7 @@ struct cmsghdr {
 #define SO_BSDCOMPAT    14
 #define SO_PASSCRED     17
 #define SO_PEERCRED     18
+#define SO_PEERSEC      30
 #define SO_SNDBUFFORCE  31
 #define SO_RCVBUFFORCE  33
 
diff --git a/arch/mipsn32/bits/termios.h b/arch/mipsn32/bits/termios.h
index 6a1205d7..f7b9dd2e 100644
--- a/arch/mipsn32/bits/termios.h
+++ b/arch/mipsn32/bits/termios.h
@@ -52,6 +52,7 @@ struct termios {
 #define ONLRET 0000040
 #define OFILL  0000100
 #define OFDEL  0000200
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define NLDLY  0000400
 #define NL0    0000000
 #define NL1    0000400
@@ -71,6 +72,7 @@ struct termios {
 #define FFDLY  0100000
 #define FF0    0000000
 #define FF1    0100000
+#endif
 
 #define VTDLY  0040000
 #define VT0    0000000
@@ -163,5 +165,5 @@ struct termios {
 #define EXTPROC 0200000
 
 #define XTABS  0014000
-#define TIOCSER_TEMT 1
+#define TIOCSER_TEMT 0x01
 #endif
diff --git a/arch/mipsn32/pthread_arch.h b/arch/mipsn32/pthread_arch.h
index e5812655..5fea15ad 100644
--- a/arch/mipsn32/pthread_arch.h
+++ b/arch/mipsn32/pthread_arch.h
@@ -11,6 +11,7 @@ static inline struct pthread *__pthread_self()
 }
 
 #define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
 
 #define DTP_OFFSET 0x8000
diff --git a/arch/or1k/bits/limits.h b/arch/or1k/bits/limits.h
index 483b6749..3a811c99 100644
--- a/arch/or1k/bits/limits.h
+++ b/arch/or1k/bits/limits.h
@@ -1,6 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 8192
+#define PAGESIZE 8192
 #define LONG_BIT 32
 #endif
 
diff --git a/arch/or1k/pthread_arch.h b/arch/or1k/pthread_arch.h
index 7decd769..521b9c53 100644
--- a/arch/or1k/pthread_arch.h
+++ b/arch/or1k/pthread_arch.h
@@ -12,6 +12,7 @@ static inline struct pthread *__pthread_self()
 }
 
 #define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
 
 #define MC_PC regs.pc
diff --git a/arch/powerpc/bits/hwcap.h b/arch/powerpc/bits/hwcap.h
index 82c92a93..803de9b5 100644
--- a/arch/powerpc/bits/hwcap.h
+++ b/arch/powerpc/bits/hwcap.h
@@ -38,3 +38,6 @@
 #define PPC_FEATURE2_HTM_NOSC		0x01000000
 #define PPC_FEATURE2_ARCH_3_00		0x00800000
 #define PPC_FEATURE2_HAS_IEEE128	0x00400000
+#define PPC_FEATURE2_DARN		0x00200000
+#define PPC_FEATURE2_SCV		0x00100000
+#define PPC_FEATURE2_HTM_NO_SUSPEND	0x00080000
diff --git a/arch/powerpc/bits/mman.h b/arch/powerpc/bits/mman.h
index 95ec4358..b3a675a8 100644
--- a/arch/powerpc/bits/mman.h
+++ b/arch/powerpc/bits/mman.h
@@ -4,6 +4,7 @@
 #define MAP_NORESERVE   0x40
 #undef MAP_LOCKED
 #define MAP_LOCKED	0x80
+#undef MAP_SYNC
 
 #undef MCL_CURRENT
 #define MCL_CURRENT     0x2000
diff --git a/arch/powerpc/bits/ptrace.h b/arch/powerpc/bits/ptrace.h
new file mode 100644
index 00000000..75086ca0
--- /dev/null
+++ b/arch/powerpc/bits/ptrace.h
@@ -0,0 +1,23 @@
+#define PTRACE_GETVRREGS	0x12
+#define PTRACE_SETVRREGS	0x13
+#define PTRACE_GETEVRREGS	0x14
+#define PTRACE_SETEVRREGS	0x15
+#define PTRACE_GETREGS64	0x16
+#define PTRACE_SETREGS64	0x17
+#define PTRACE_GET_DEBUGREG	0x19
+#define PTRACE_SET_DEBUGREG	0x1a
+#define PTRACE_GETVSRREGS	0x1b
+#define PTRACE_SETVSRREGS	0x1c
+#define PTRACE_SINGLEBLOCK	0x100
+
+#define PT_GETVRREGS PTRACE_GETVRREGS
+#define PT_SETVRREGS PTRACE_SETVRREGS
+#define PT_GETEVRREGS PTRACE_GETEVRREGS
+#define PT_SETEVRREGS PTRACE_SETEVRREGS
+#define PT_GETREGS64 PTRACE_GETREGS64
+#define PT_SETREGS64 PTRACE_SETREGS64
+#define PT_GET_DEBUGREG PTRACE_GET_DEBUGREG
+#define PT_SET_DEBUGREG PTRACE_SET_DEBUGREG
+#define PT_GETVSRREGS PTRACE_GETVSRREGS
+#define PT_SETVSRREGS PTRACE_SETVSRREGS
+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
diff --git a/arch/powerpc/bits/socket.h b/arch/powerpc/bits/socket.h
index 2fee8777..a94b8bdb 100644
--- a/arch/powerpc/bits/socket.h
+++ b/arch/powerpc/bits/socket.h
@@ -36,6 +36,7 @@ struct cmsghdr {
 #define SO_PASSCRED     20
 #define SO_PEERCRED     21
 #define SO_ACCEPTCONN   30
+#define SO_PEERSEC      31
 #define SO_SNDBUFFORCE  32
 #define SO_RCVBUFFORCE  33
 #define SO_PROTOCOL     38
diff --git a/arch/powerpc/bits/syscall.h.in b/arch/powerpc/bits/syscall.h.in
index 20833915..7ce94bbd 100644
--- a/arch/powerpc/bits/syscall.h.in
+++ b/arch/powerpc/bits/syscall.h.in
@@ -368,4 +368,7 @@
 #define __NR_pwritev2              381
 #define __NR_kexec_file_load       382
 #define __NR_statx                 383
+#define __NR_pkey_alloc            384
+#define __NR_pkey_free             385
+#define __NR_pkey_mprotect         386
 
diff --git a/arch/powerpc/bits/termios.h b/arch/powerpc/bits/termios.h
index 0b09630c..e3f22e86 100644
--- a/arch/powerpc/bits/termios.h
+++ b/arch/powerpc/bits/termios.h
@@ -53,6 +53,7 @@ struct termios {
 #define ONLRET 0000040
 #define OFILL  0000100
 #define OFDEL  0000200
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define NLDLY  0001400
 #define NL0    0000000
 #define NL1    0000400
@@ -74,6 +75,7 @@ struct termios {
 #define BSDLY  0100000
 #define BS0    0000000
 #define BS1    0100000
+#endif
 
 #define VTDLY  0200000
 #define VT0    0000000
@@ -165,5 +167,5 @@ struct termios {
 #define EXTPROC 0x10000000
 
 #define XTABS   00006000
-#define TIOCSER_TEMT 1
+#define TIOCSER_TEMT 0x01
 #endif
diff --git a/arch/powerpc/pthread_arch.h b/arch/powerpc/pthread_arch.h
index 7c5c4fad..79e5a09f 100644
--- a/arch/powerpc/pthread_arch.h
+++ b/arch/powerpc/pthread_arch.h
@@ -11,6 +11,7 @@ static inline struct pthread *__pthread_self()
 }
                         
 #define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
 
 #define DTP_OFFSET 0x8000
diff --git a/arch/powerpc64/bits/hwcap.h b/arch/powerpc64/bits/hwcap.h
index 82c92a93..803de9b5 100644
--- a/arch/powerpc64/bits/hwcap.h
+++ b/arch/powerpc64/bits/hwcap.h
@@ -38,3 +38,6 @@
 #define PPC_FEATURE2_HTM_NOSC		0x01000000
 #define PPC_FEATURE2_ARCH_3_00		0x00800000
 #define PPC_FEATURE2_HAS_IEEE128	0x00400000
+#define PPC_FEATURE2_DARN		0x00200000
+#define PPC_FEATURE2_SCV		0x00100000
+#define PPC_FEATURE2_HTM_NO_SUSPEND	0x00080000
diff --git a/arch/powerpc64/bits/mman.h b/arch/powerpc64/bits/mman.h
index 95ec4358..b3a675a8 100644
--- a/arch/powerpc64/bits/mman.h
+++ b/arch/powerpc64/bits/mman.h
@@ -4,6 +4,7 @@
 #define MAP_NORESERVE   0x40
 #undef MAP_LOCKED
 #define MAP_LOCKED	0x80
+#undef MAP_SYNC
 
 #undef MCL_CURRENT
 #define MCL_CURRENT     0x2000
diff --git a/arch/powerpc64/bits/ptrace.h b/arch/powerpc64/bits/ptrace.h
new file mode 100644
index 00000000..75086ca0
--- /dev/null
+++ b/arch/powerpc64/bits/ptrace.h
@@ -0,0 +1,23 @@
+#define PTRACE_GETVRREGS	0x12
+#define PTRACE_SETVRREGS	0x13
+#define PTRACE_GETEVRREGS	0x14
+#define PTRACE_SETEVRREGS	0x15
+#define PTRACE_GETREGS64	0x16
+#define PTRACE_SETREGS64	0x17
+#define PTRACE_GET_DEBUGREG	0x19
+#define PTRACE_SET_DEBUGREG	0x1a
+#define PTRACE_GETVSRREGS	0x1b
+#define PTRACE_SETVSRREGS	0x1c
+#define PTRACE_SINGLEBLOCK	0x100
+
+#define PT_GETVRREGS PTRACE_GETVRREGS
+#define PT_SETVRREGS PTRACE_SETVRREGS
+#define PT_GETEVRREGS PTRACE_GETEVRREGS
+#define PT_SETEVRREGS PTRACE_SETEVRREGS
+#define PT_GETREGS64 PTRACE_GETREGS64
+#define PT_SETREGS64 PTRACE_SETREGS64
+#define PT_GET_DEBUGREG PTRACE_GET_DEBUGREG
+#define PT_SET_DEBUGREG PTRACE_SET_DEBUGREG
+#define PT_GETVSRREGS PTRACE_GETVSRREGS
+#define PT_SETVSRREGS PTRACE_SETVSRREGS
+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
diff --git a/arch/powerpc64/bits/socket.h b/arch/powerpc64/bits/socket.h
index 2f748ae8..0f3c9aac 100644
--- a/arch/powerpc64/bits/socket.h
+++ b/arch/powerpc64/bits/socket.h
@@ -54,6 +54,7 @@ struct cmsghdr {
 #define SO_PASSCRED     20
 #define SO_PEERCRED     21
 #define SO_ACCEPTCONN   30
+#define SO_PEERSEC      31
 #define SO_SNDBUFFORCE  32
 #define SO_RCVBUFFORCE  33
 #define SO_PROTOCOL     38
diff --git a/arch/powerpc64/bits/syscall.h.in b/arch/powerpc64/bits/syscall.h.in
index 936f43c0..1da1ecc0 100644
--- a/arch/powerpc64/bits/syscall.h.in
+++ b/arch/powerpc64/bits/syscall.h.in
@@ -359,4 +359,7 @@
 #define __NR_pwritev2               381
 #define __NR_kexec_file_load        382
 #define __NR_statx                  383
+#define __NR_pkey_alloc             384
+#define __NR_pkey_free              385
+#define __NR_pkey_mprotect          386
 
diff --git a/arch/powerpc64/bits/termios.h b/arch/powerpc64/bits/termios.h
index 0b09630c..e3f22e86 100644
--- a/arch/powerpc64/bits/termios.h
+++ b/arch/powerpc64/bits/termios.h
@@ -53,6 +53,7 @@ struct termios {
 #define ONLRET 0000040
 #define OFILL  0000100
 #define OFDEL  0000200
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define NLDLY  0001400
 #define NL0    0000000
 #define NL1    0000400
@@ -74,6 +75,7 @@ struct termios {
 #define BSDLY  0100000
 #define BS0    0000000
 #define BS1    0100000
+#endif
 
 #define VTDLY  0200000
 #define VT0    0000000
@@ -165,5 +167,5 @@ struct termios {
 #define EXTPROC 0x10000000
 
 #define XTABS   00006000
-#define TIOCSER_TEMT 1
+#define TIOCSER_TEMT 0x01
 #endif
diff --git a/arch/powerpc64/pthread_arch.h b/arch/powerpc64/pthread_arch.h
index 2f976fe2..37b75e29 100644
--- a/arch/powerpc64/pthread_arch.h
+++ b/arch/powerpc64/pthread_arch.h
@@ -6,6 +6,7 @@ static inline struct pthread *__pthread_self()
 }
 
 #define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
 
 #define DTP_OFFSET 0x8000
diff --git a/arch/s390x/bits/limits.h b/arch/s390x/bits/limits.h
index 792a30b9..86ef7663 100644
--- a/arch/s390x/bits/limits.h
+++ b/arch/s390x/bits/limits.h
@@ -1,6 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 4096
+#define PAGESIZE 4096
 #define LONG_BIT 64
 #endif
 
diff --git a/arch/s390x/bits/ptrace.h b/arch/s390x/bits/ptrace.h
new file mode 100644
index 00000000..d50e3262
--- /dev/null
+++ b/arch/s390x/bits/ptrace.h
@@ -0,0 +1,9 @@
+#define PTRACE_SINGLEBLOCK		12
+#define PTRACE_PEEKUSR_AREA		0x5000
+#define PTRACE_POKEUSR_AREA		0x5001
+#define PTRACE_GET_LAST_BREAK		0x5006
+#define PTRACE_ENABLE_TE		0x5009
+#define PTRACE_DISABLE_TE		0x5010
+#define PTRACE_TE_ABORT_RAND		0x5011
+
+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
diff --git a/arch/s390x/bits/syscall.h.in b/arch/s390x/bits/syscall.h.in
index 4fe1a64f..409e9155 100644
--- a/arch/s390x/bits/syscall.h.in
+++ b/arch/s390x/bits/syscall.h.in
@@ -322,4 +322,6 @@
 #define __NR_pwritev2                   377
 #define __NR_s390_guarded_storage       378
 #define __NR_statx                      379
+#define __NR_s390_sthyi                 380
+#define __NR_kexec_file_load            381
 
diff --git a/arch/s390x/bits/user.h b/arch/s390x/bits/user.h
index 17bce16f..ff3f0483 100644
--- a/arch/s390x/bits/user.h
+++ b/arch/s390x/bits/user.h
@@ -54,8 +54,8 @@ struct user {
 	char u_comm[32];
 };
 
-#define PAGE_MASK            (~(PAGE_SIZE-1))
-#define NBPG                 PAGE_SIZE
+#define PAGE_MASK            (~(PAGESIZE-1))
+#define NBPG                 PAGESIZE
 #define UPAGES               1
 #define HOST_TEXT_START_ADDR (u.start_code)
 #define HOST_STACK_END_ADDR  (u.start_stack + u.u_ssize * NBPG)
diff --git a/arch/sh/bits/limits.h b/arch/sh/bits/limits.h
index 65a3dd64..c340ceb2 100644
--- a/arch/sh/bits/limits.h
+++ b/arch/sh/bits/limits.h
@@ -1,6 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 4096
+#define PAGESIZE 4096
 #define LONG_BIT 32
 #endif
 
diff --git a/arch/sh/pthread_arch.h b/arch/sh/pthread_arch.h
index 2756e7ec..a7dd27a6 100644
--- a/arch/sh/pthread_arch.h
+++ b/arch/sh/pthread_arch.h
@@ -2,10 +2,16 @@ static inline struct pthread *__pthread_self()
 {
 	char *self;
 	__asm__ __volatile__ ("stc gbr,%0" : "=r" (self) );
-	return (struct pthread *) (self + 8 - sizeof(struct pthread));
+	return (struct pthread *) (self - sizeof(struct pthread));
 }
 
 #define TLS_ABOVE_TP
-#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
+#define GAP_ABOVE_TP 8
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
 
 #define MC_PC sc_pc
+
+#ifdef __FDPIC__
+#define MC_GOT sc_regs[12]
+#define CANCEL_GOT (*(uintptr_t *)((char *)__syscall_cp_asm+sizeof(uintptr_t)))
+#endif
diff --git a/arch/sh/reloc.h b/arch/sh/reloc.h
index 0238ce07..a1f16cb1 100644
--- a/arch/sh/reloc.h
+++ b/arch/sh/reloc.h
@@ -20,7 +20,7 @@
 
 #define LDSO_ARCH "sh" ENDIAN_SUFFIX FP_SUFFIX ABI_SUFFIX
 
-#define TPOFF_K 8
+#define TPOFF_K 0
 
 #define REL_SYMBOLIC    R_SH_DIR32
 #define REL_OFFSET      R_SH_REL32
diff --git a/arch/sh/syscall_arch.h b/arch/sh/syscall_arch.h
index 84758fe0..48f61d94 100644
--- a/arch/sh/syscall_arch.h
+++ b/arch/sh/syscall_arch.h
@@ -86,3 +86,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 	register long r1 __asm__("r1") = f;
 	__asm_syscall(22, "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "0"(r0), "r"(r1));
 }
+
+#define SYSCALL_IPC_BROKEN_MODE
diff --git a/arch/x32/atomic_arch.h b/arch/x32/atomic_arch.h
index a744c299..918c2d4e 100644
--- a/arch/x32/atomic_arch.h
+++ b/arch/x32/atomic_arch.h
@@ -106,8 +106,8 @@ static inline int a_ctz_64(uint64_t x)
 	return x;
 }
 
-#define a_ctz_l a_ctz_l
-static inline int a_ctz_l(unsigned long x)
+#define a_ctz_32 a_ctz_32
+static inline int a_ctz_32(uint32_t x)
 {
 	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
 	return x;
diff --git a/arch/x32/bits/limits.h b/arch/x32/bits/limits.h
index 65a3dd64..c340ceb2 100644
--- a/arch/x32/bits/limits.h
+++ b/arch/x32/bits/limits.h
@@ -1,6 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 4096
+#define PAGESIZE 4096
 #define LONG_BIT 32
 #endif
 
diff --git a/arch/x32/bits/ptrace.h b/arch/x32/bits/ptrace.h
new file mode 100644
index 00000000..7f8a09b5
--- /dev/null
+++ b/arch/x32/bits/ptrace.h
@@ -0,0 +1,13 @@
+#define PTRACE_GET_THREAD_AREA		25
+#define PTRACE_SET_THREAD_AREA		26
+#define PTRACE_ARCH_PRCTL		30
+#define PTRACE_SYSEMU			31
+#define PTRACE_SYSEMU_SINGLESTEP	32
+#define PTRACE_SINGLEBLOCK		33
+
+#define PT_GET_THREAD_AREA PTRACE_GET_THREAD_AREA
+#define PT_SET_THREAD_AREA PTRACE_SET_THREAD_AREA
+#define PT_ARCH_PRCTL PTRACE_ARCH_PRCTL
+#define PT_SYSEMU PTRACE_SYSEMU
+#define PT_SYSEMU_SINGLESTEP PTRACE_SYSEMU_SINGLESTEP
+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
diff --git a/arch/x32/bits/user.h b/arch/x32/bits/user.h
index 471bb19d..4073cc06 100644
--- a/arch/x32/bits/user.h
+++ b/arch/x32/bits/user.h
@@ -34,8 +34,8 @@ struct user {
 	unsigned long			u_debugreg[8];
 };
 
-#define PAGE_MASK		(~(PAGE_SIZE-1))
-#define NBPG			PAGE_SIZE
+#define PAGE_MASK		(~(PAGESIZE-1))
+#define NBPG			PAGESIZE
 #define UPAGES			1
 #define HOST_TEXT_START_ADDR	(u.start_code)
 #define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
diff --git a/arch/x86_64/bits/limits.h b/arch/x86_64/bits/limits.h
index 792a30b9..86ef7663 100644
--- a/arch/x86_64/bits/limits.h
+++ b/arch/x86_64/bits/limits.h
@@ -1,6 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 4096
+#define PAGESIZE 4096
 #define LONG_BIT 64
 #endif
 
diff --git a/arch/x86_64/bits/ptrace.h b/arch/x86_64/bits/ptrace.h
new file mode 100644
index 00000000..7f8a09b5
--- /dev/null
+++ b/arch/x86_64/bits/ptrace.h
@@ -0,0 +1,13 @@
+#define PTRACE_GET_THREAD_AREA		25
+#define PTRACE_SET_THREAD_AREA		26
+#define PTRACE_ARCH_PRCTL		30
+#define PTRACE_SYSEMU			31
+#define PTRACE_SYSEMU_SINGLESTEP	32
+#define PTRACE_SINGLEBLOCK		33
+
+#define PT_GET_THREAD_AREA PTRACE_GET_THREAD_AREA
+#define PT_SET_THREAD_AREA PTRACE_SET_THREAD_AREA
+#define PT_ARCH_PRCTL PTRACE_ARCH_PRCTL
+#define PT_SYSEMU PTRACE_SYSEMU
+#define PT_SYSEMU_SINGLESTEP PTRACE_SYSEMU_SINGLESTEP
+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
diff --git a/arch/x86_64/bits/user.h b/arch/x86_64/bits/user.h
index 471bb19d..4073cc06 100644
--- a/arch/x86_64/bits/user.h
+++ b/arch/x86_64/bits/user.h
@@ -34,8 +34,8 @@ struct user {
 	unsigned long			u_debugreg[8];
 };
 
-#define PAGE_MASK		(~(PAGE_SIZE-1))
-#define NBPG			PAGE_SIZE
+#define PAGE_MASK		(~(PAGESIZE-1))
+#define NBPG			PAGESIZE
 #define UPAGES			1
 #define HOST_TEXT_START_ADDR	(u.start_code)
 #define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
diff --git a/configure b/configure
index 1e59c461..f940af9a 100755
--- a/configure
+++ b/configure
@@ -320,6 +320,7 @@ i?86*) ARCH=i386 ;;
 x86_64-x32*|x32*|x86_64*x32) ARCH=x32 ;;
 x86_64-nt64*) ARCH=nt64 ;;
 x86_64*) ARCH=x86_64 ;;
+m68k*) ARCH=m68k ;;
 mips64*|mipsisa64*) ARCH=mips64 ;;
 mips*) ARCH=mips ;;
 microblaze*) ARCH=microblaze ;;
@@ -590,10 +591,12 @@ tryldflag LDFLAGS_AUTO -Wl,--no-undefined
 # versions built without shared library support and pcc are broken.
 tryldflag LDFLAGS_AUTO -Wl,--exclude-libs=ALL
 
-# Linking with -Bsymbolic-functions is no longer mandatory for
-# the dynamic linker to work, but enable it if it works as
-# a linking optimization.
-tryldflag LDFLAGS_AUTO -Wl,-Bsymbolic-functions
+# Public data symbols must be interposable to allow for copy
+# relocations, but otherwise we want to bind symbols at libc link
+# time to eliminate startup relocations and PLT overhead. Use
+# --dynamic-list rather than -Bsymbolic-functions for greater
+# control over what symbols are left unbound.
+tryldflag LDFLAGS_AUTO -Wl,--dynamic-list="$srcdir/dynamic.list"
 
 # Find compiler runtime library
 test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh
@@ -639,6 +642,13 @@ if test "$ARCH" = "aarch64" ; then
 trycppif __AARCH64EB__ "$t" && SUBARCH=${SUBARCH}_be
 fi
 
+if test "$ARCH" = "m68k" ; then
+if trycppif "__HAVE_68881__" ; then : ;
+elif trycppif "__mcffpu__" ; then SUBARCH="-fp64"
+else SUBARCH="-sf"
+fi
+fi
+
 if test "$ARCH" = "mips" ; then
 trycppif "__mips_isa_rev >= 6" "$t" && SUBARCH=${SUBARCH}r6
 trycppif "_MIPSEL || __MIPSEL || __MIPSEL__" "$t" && SUBARCH=${SUBARCH}el
diff --git a/dynamic.list b/dynamic.list
new file mode 100644
index 00000000..686f8eb4
--- /dev/null
+++ b/dynamic.list
@@ -0,0 +1,44 @@
+{
+environ;
+__environ;
+
+stdin;
+stdout;
+stderr;
+
+malloc;
+calloc;
+realloc;
+free;
+memalign;
+posix_memalign;
+aligned_alloc;
+malloc_usable_size;
+
+timezone;
+daylight;
+tzname;
+__timezone;
+__daylight;
+__tzname;
+
+signgam;
+__signgam;
+
+optarg;
+optind;
+opterr;
+optreset;
+__optreset;
+
+getdate_err;
+
+h_errno;
+
+program_invocation_name;
+program_invocation_short_name;
+__progname;
+__progname_full;
+
+__stack_chk_guard;
+};
diff --git a/include/alltypes.h.in b/include/alltypes.h.in
index 6a9c105f..622ca01d 100644
--- a/include/alltypes.h.in
+++ b/include/alltypes.h.in
@@ -7,10 +7,10 @@ TYPEDEF _Addr regoff_t;
 TYPEDEF _Reg register_t;
 
 TYPEDEF signed char     int8_t;
-TYPEDEF short           int16_t;
-TYPEDEF int             int32_t;
-TYPEDEF _Int64          int64_t;
-TYPEDEF _Int64          intmax_t;
+TYPEDEF signed short    int16_t;
+TYPEDEF signed int      int32_t;
+TYPEDEF signed _Int64   int64_t;
+TYPEDEF signed _Int64   intmax_t;
 TYPEDEF unsigned char   uint8_t;
 TYPEDEF unsigned short  uint16_t;
 TYPEDEF unsigned int    uint32_t;
diff --git a/include/elf.h b/include/elf.h
index e79915fe..c2297353 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -623,6 +623,7 @@ typedef struct {
 
 
 #define NT_PRSTATUS	1
+#define NT_PRFPREG	2
 #define NT_FPREGSET	2
 #define NT_PRPSINFO	3
 #define NT_PRXREG	4
@@ -644,6 +645,19 @@ typedef struct {
 #define NT_PPC_VMX	0x100
 #define NT_PPC_SPE	0x101
 #define NT_PPC_VSX	0x102
+#define NT_PPC_TAR	0x103
+#define NT_PPC_PPR	0x104
+#define NT_PPC_DSCR	0x105
+#define NT_PPC_EBB	0x106
+#define NT_PPC_PMU	0x107
+#define NT_PPC_TM_CGPR	0x108
+#define NT_PPC_TM_CFPR	0x109
+#define NT_PPC_TM_CVMX	0x10a
+#define NT_PPC_TM_CVSX	0x10b
+#define NT_PPC_TM_SPR	0x10c
+#define NT_PPC_TM_CTAR	0x10d
+#define NT_PPC_TM_CPPR	0x10e
+#define NT_PPC_TM_CDSCR	0x10f
 #define NT_386_TLS	0x200
 #define NT_386_IOPERM	0x201
 #define NT_X86_XSTATE	0x202
@@ -656,14 +670,21 @@ typedef struct {
 #define NT_S390_LAST_BREAK	0x306
 #define NT_S390_SYSTEM_CALL	0x307
 #define NT_S390_TDB	0x308
+#define NT_S390_VXRS_LOW	0x309
+#define NT_S390_VXRS_HIGH	0x30a
+#define NT_S390_GS_CB	0x30b
+#define NT_S390_GS_BC	0x30c
+#define NT_S390_RI_CB	0x30d
 #define NT_ARM_VFP	0x400
 #define NT_ARM_TLS	0x401
 #define NT_ARM_HW_BREAK	0x402
 #define NT_ARM_HW_WATCH	0x403
 #define NT_ARM_SYSTEM_CALL	0x404
+#define NT_ARM_SVE	0x405
 #define NT_METAG_CBUF	0x500
 #define NT_METAG_RPIPE	0x501
 #define NT_METAG_TLS	0x502
+#define NT_ARC_V2	0x600
 #define NT_VERSION	1
 
 
@@ -721,7 +742,8 @@ typedef struct {
 #define DT_ENCODING	32
 #define DT_PREINIT_ARRAY 32
 #define DT_PREINIT_ARRAYSZ 33
-#define	DT_NUM		34
+#define DT_SYMTAB_SHNDX	34
+#define	DT_NUM		35
 #define DT_LOOS		0x6000000d
 #define DT_HIOS		0x6ffff000
 #define DT_LOPROC	0x70000000
@@ -821,6 +843,8 @@ typedef struct {
 #define	DF_1_SYMINTPOSE	0x00800000
 #define	DF_1_GLOBAUDIT	0x01000000
 #define	DF_1_SINGLETON	0x02000000
+#define	DF_1_STUB	0x04000000
+#define	DF_1_PIE	0x08000000
 
 #define DTF_1_PARINIT	0x00000001
 #define DTF_1_CONFEXP	0x00000002
@@ -1002,6 +1026,14 @@ typedef struct {
 #define AT_L2_CACHESHAPE	36
 #define AT_L3_CACHESHAPE	37
 
+#define AT_L1I_CACHESIZE	40
+#define AT_L1I_CACHEGEOMETRY	41
+#define AT_L1D_CACHESIZE	42
+#define AT_L1D_CACHEGEOMETRY	43
+#define AT_L2_CACHESIZE		44
+#define AT_L2_CACHEGEOMETRY	45
+#define AT_L3_CACHESIZE		46
+#define AT_L3_CACHEGEOMETRY	47
 
 
 
@@ -1097,7 +1129,25 @@ typedef struct {
 #define R_68K_GLOB_DAT	20
 #define R_68K_JMP_SLOT	21
 #define R_68K_RELATIVE	22
-#define R_68K_NUM	23
+#define R_68K_TLS_GD32	25
+#define R_68K_TLS_GD16	26
+#define R_68K_TLS_GD8	27
+#define R_68K_TLS_LDM32	28
+#define R_68K_TLS_LDM16	29
+#define R_68K_TLS_LDM8	30
+#define R_68K_TLS_LDO32	31
+#define R_68K_TLS_LDO16	32
+#define R_68K_TLS_LDO8	33
+#define R_68K_TLS_IE32	34
+#define R_68K_TLS_IE16	35
+#define R_68K_TLS_IE8	36
+#define R_68K_TLS_LE32	37
+#define R_68K_TLS_LE16	38
+#define R_68K_TLS_LE8	39
+#define R_68K_TLS_DTPMOD32	40
+#define R_68K_TLS_DTPREL32	41
+#define R_68K_TLS_TPREL32	42
+#define R_68K_NUM	43
 
 #define R_386_NONE	   0
 #define R_386_32	   1
@@ -2233,6 +2283,7 @@ enum
 
 #define PPC64_OPT_TLS		1
 #define PPC64_OPT_MULTI_TOC	2
+#define PPC64_OPT_LOCALENTRY	4
 
 #define STO_PPC64_LOCAL_BIT	5
 #define STO_PPC64_LOCAL_MASK	0xe0
diff --git a/include/limits.h b/include/limits.h
index f9805a1e..02c2139d 100644
--- a/include/limits.h
+++ b/include/limits.h
@@ -9,7 +9,7 @@
 
 /* Support signed or unsigned plain-char */
 
-#if '\0'-1 > 0
+#if '\xff' > 0
 #define CHAR_MIN 0
 #define CHAR_MAX 255
 #else
@@ -40,14 +40,9 @@
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 
 #define PIPE_BUF 4096
-#ifdef PAGE_SIZE
-#define PAGESIZE PAGE_SIZE
-#endif
 #define FILESIZEBITS 64
 #define NAME_MAX 255
-#define SYMLINK_MAX 255
 #define PATH_MAX 4096
-#define NZERO 20
 #define NGROUPS_MAX 32
 #define ARG_MAX 131072
 #define IOV_MAX 1024
@@ -82,13 +77,22 @@
 #define RE_DUP_MAX 255
 
 #define NL_ARGMAX 9
-#define NL_LANGMAX 32
 #define NL_MSGMAX 32767
 #define NL_SETMAX 255
 #define NL_TEXTMAX 2048
 
 #endif
 
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
+
+#ifdef PAGESIZE
+#define PAGE_SIZE PAGESIZE
+#endif
+#define NZERO 20
+#define NL_LANGMAX 32
+
+#endif
+
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
  || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
 
diff --git a/include/math.h b/include/math.h
index 6ac91da2..fea34686 100644
--- a/include/math.h
+++ b/include/math.h
@@ -27,7 +27,7 @@ extern "C" {
 #define MATH_ERREXCEPT 2
 #define math_errhandling 2
 
-#define FP_ILOGBNAN (-1-(int)(((unsigned)-1)>>1))
+#define FP_ILOGBNAN (-1-0x7fffffff)
 #define FP_ILOGB0 FP_ILOGBNAN
 
 #define FP_NAN       0
diff --git a/include/net/if_arp.h b/include/net/if_arp.h
index c832ff95..27becc83 100644
--- a/include/net/if_arp.h
+++ b/include/net/if_arp.h
@@ -59,6 +59,7 @@ struct arphdr {
 #define ARPHRD_LAPB	516
 #define ARPHRD_DDCMP	517
 #define	ARPHRD_RAWHDLC	518
+#define ARPHRD_RAWIP	519
 
 #define ARPHRD_TUNNEL	768
 #define ARPHRD_TUNNEL6	769
diff --git a/include/netinet/if_ether.h b/include/netinet/if_ether.h
index 97134d75..ecd6c73c 100644
--- a/include/netinet/if_ether.h
+++ b/include/netinet/if_ether.h
@@ -5,6 +5,7 @@
 #include <sys/types.h>
 
 #define ETH_ALEN	6
+#define ETH_TLEN	2
 #define ETH_HLEN	14
 #define ETH_ZLEN	60
 #define ETH_DATA_LEN	1500
@@ -17,6 +18,7 @@
 #define ETH_P_PUP	0x0200
 #define ETH_P_PUPAT	0x0201
 #define ETH_P_TSN	0x22F0
+#define ETH_P_ERSPAN2	0x22EB
 #define ETH_P_IP	0x0800
 #define ETH_P_X25	0x0805
 #define ETH_P_ARP	0x0806
@@ -53,6 +55,8 @@
 #define ETH_P_AOE	0x88A2
 #define ETH_P_8021AD	0x88A8
 #define ETH_P_802_EX1	0x88B5
+#define ETH_P_ERSPAN	0x88BE
+#define ETH_P_PREAUTH	0x88C7
 #define ETH_P_TIPC	0x88CA
 #define ETH_P_MACSEC	0x88E5
 #define ETH_P_8021AH	0x88E7
@@ -66,11 +70,13 @@
 #define ETH_P_IBOE	0x8915
 #define ETH_P_80221	0x8917
 #define ETH_P_HSR	0x892F
+#define ETH_P_NSH	0x894F
 #define ETH_P_LOOPBACK	0x9000
 #define ETH_P_QINQ1	0x9100
 #define ETH_P_QINQ2	0x9200
 #define ETH_P_QINQ3	0x9300
 #define ETH_P_EDSA	0xDADA
+#define ETH_P_IFE	0xED3E
 #define ETH_P_AF_IUCV	0xFBFB
 
 #define ETH_P_802_3_MIN	0x0600
@@ -100,6 +106,7 @@
 #define ETH_P_IEEE802154 0x00F6
 #define ETH_P_CAIF	0x00F7
 #define ETH_P_XDSA	0x00F8
+#define ETH_P_MAP	0x00F9
 
 struct ethhdr {
 	uint8_t h_dest[ETH_ALEN];
diff --git a/include/netinet/in.h b/include/netinet/in.h
index f18b478d..192679a6 100644
--- a/include/netinet/in.h
+++ b/include/netinet/in.h
@@ -363,6 +363,7 @@ struct ip6_mtuinfo {
 #define IPV6_TRANSPARENT        75
 #define IPV6_UNICAST_IF         76
 #define IPV6_RECVFRAGSIZE       77
+#define IPV6_FREEBIND           78
 
 #define IPV6_ADD_MEMBERSHIP     IPV6_JOIN_GROUP
 #define IPV6_DROP_MEMBERSHIP    IPV6_LEAVE_GROUP
diff --git a/include/netinet/tcp.h b/include/netinet/tcp.h
index 4d20936a..1e2acfbf 100644
--- a/include/netinet/tcp.h
+++ b/include/netinet/tcp.h
@@ -34,6 +34,8 @@
 #define TCP_FASTOPEN_CONNECT 30
 #define TCP_ULP          31
 #define TCP_MD5SIG_EXT   32
+#define TCP_FASTOPEN_KEY 33
+#define TCP_FASTOPEN_NO_COOKIE 34
 
 #define TCP_ESTABLISHED  1
 #define TCP_SYN_SENT     2
@@ -54,6 +56,16 @@ enum {
 	TCP_NLA_SNDBUF_LIMITED,
 	TCP_NLA_DATA_SEGS_OUT,
 	TCP_NLA_TOTAL_RETRANS,
+	TCP_NLA_PACING_RATE,
+	TCP_NLA_DELIVERY_RATE,
+	TCP_NLA_SND_CWND,
+	TCP_NLA_REORDERING,
+	TCP_NLA_MIN_RTT,
+	TCP_NLA_RECUR_RETRANS,
+	TCP_NLA_DELIVERY_RATE_APP_LMT,
+	TCP_NLA_SNDQ_SIZE,
+	TCP_NLA_CA_STATE,
+	TCP_NLA_SND_SSTHRESH,
 };
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
@@ -220,6 +232,14 @@ struct tcp_md5sig {
 	uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
 };
 
+struct tcp_diag_md5sig {
+	uint8_t tcpm_family;
+	uint8_t tcpm_prefixlen;
+	uint16_t tcpm_keylen;
+	uint32_t tcpm_addr[4];
+	uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
+};
+
 struct tcp_repair_window {
 	uint32_t snd_wl1;
 	uint32_t snd_wnd;
diff --git a/include/signal.h b/include/signal.h
index 2c8b3d55..a4f85cca 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -210,7 +210,7 @@ int sigpending(sigset_t *);
 int sigwait(const sigset_t *__restrict, int *__restrict);
 int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict);
 int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict);
-int sigqueue(pid_t, int, const union sigval);
+int sigqueue(pid_t, int, union sigval);
 
 int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
 int pthread_kill(pthread_t, int);
@@ -231,6 +231,8 @@ int sigrelse(int);
 void (*sigset(int, void (*)(int)))(int);
 #define TRAP_BRKPT 1
 #define TRAP_TRACE 2
+#define TRAP_BRANCH 3
+#define TRAP_HWBKPT 4
 #define POLL_IN 1
 #define POLL_OUT 2
 #define POLL_MSG 3
diff --git a/include/stdio.h b/include/stdio.h
index 7c4f9ee4..afadd912 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -49,6 +49,7 @@ extern "C" {
 
 typedef union _G_fpos64_t {
 	char __opaque[16];
+	long long __lldata;
 	double __align;
 } fpos_t;
 
diff --git a/include/stdlib.h b/include/stdlib.h
index 42ca8336..4bbaded0 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -39,14 +39,18 @@ void *malloc (size_t);
 void *calloc (size_t, size_t);
 void *realloc (void *, size_t);
 void free (void *);
+#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
 void *aligned_alloc(size_t, size_t);
+#endif
 
 _Noreturn void abort (void);
 int atexit (void (*) (void));
 _Noreturn void exit (int);
 _Noreturn void _Exit (int);
+#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
 int at_quick_exit (void (*) (void));
 _Noreturn void quick_exit (int);
+#endif
 
 char *getenv (const char *);
 
@@ -100,7 +104,6 @@ int posix_memalign (void **, size_t, size_t);
 int setenv (const char *, const char *, int);
 int unsetenv (const char *);
 int mkstemp (char *);
-int mkostemp (char *, int);
 char *mkdtemp (char *);
 int getsubopt (char **, char *const *, char **);
 int rand_r (unsigned *);
@@ -138,6 +141,7 @@ void lcong48 (unsigned short [7]);
 #include <alloca.h>
 char *mktemp (char *);
 int mkstemps (char *, int);
+int mkostemp (char *, int);
 int mkostemps (char *, int, int);
 void *valloc (size_t);
 void *memalign(size_t, size_t);
diff --git a/include/string.h b/include/string.h
index ce1dc300..795a2abc 100644
--- a/include/string.h
+++ b/include/string.h
@@ -82,6 +82,7 @@ void *memccpy (void *__restrict, const void *__restrict, int, size_t);
 char *strsep(char **, const char *);
 size_t strlcat (char *, const char *, size_t);
 size_t strlcpy (char *, const char *, size_t);
+void explicit_bzero (void *, size_t);
 #endif
 
 #ifdef _GNU_SOURCE
diff --git a/include/sys/epoll.h b/include/sys/epoll.h
index ffe2311f..ac81a841 100644
--- a/include/sys/epoll.h
+++ b/include/sys/epoll.h
@@ -21,6 +21,7 @@ enum EPOLL_EVENTS { __EPOLL_DUMMY };
 #define EPOLLPRI 0x002
 #define EPOLLOUT 0x004
 #define EPOLLRDNORM 0x040
+#define EPOLLNVAL 0x020
 #define EPOLLRDBAND 0x080
 #define EPOLLWRNORM 0x100
 #define EPOLLWRBAND 0x200
diff --git a/include/sys/kd.h b/include/sys/kd.h
index 793fd59f..42122b9c 100644
--- a/include/sys/kd.h
+++ b/include/sys/kd.h
@@ -1,8 +1 @@
-#ifndef _SYS_KD_H
-#define _SYS_KD_H
-
-#define _LINUX_TYPES_H
-#include <linux/kd.h>
-#undef _LINUX_TYPES_H
-
-#endif
+#include <bits/kd.h>
diff --git a/include/sys/mman.h b/include/sys/mman.h
index 8a5149c9..99d02a2e 100644
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -20,6 +20,7 @@ extern "C" {
 
 #define MAP_SHARED     0x01
 #define MAP_PRIVATE    0x02
+#define MAP_SHARED_VALIDATE 0x03
 #define MAP_TYPE       0x0f
 #define MAP_FIXED      0x10
 #define MAP_ANON       0x20
@@ -33,8 +34,23 @@ extern "C" {
 #define MAP_NONBLOCK   0x10000
 #define MAP_STACK      0x20000
 #define MAP_HUGETLB    0x40000
+#define MAP_SYNC       0x80000
+#define MAP_FIXED_NOREPLACE 0x100000
 #define MAP_FILE       0
 
+#define MAP_HUGE_SHIFT 26
+#define MAP_HUGE_MASK  0x3f
+#define MAP_HUGE_64KB  (16 << 26)
+#define MAP_HUGE_512KB (19 << 26)
+#define MAP_HUGE_1MB   (20 << 26)
+#define MAP_HUGE_2MB   (21 << 26)
+#define MAP_HUGE_8MB   (23 << 26)
+#define MAP_HUGE_16MB  (24 << 26)
+#define MAP_HUGE_256MB (28 << 26)
+#define MAP_HUGE_1GB   (30 << 26)
+#define MAP_HUGE_2GB   (31 << 26)
+#define MAP_HUGE_16GB  (34U << 26)
+
 #define PROT_NONE      0
 #define PROT_READ      1
 #define PROT_WRITE     2
@@ -72,10 +88,23 @@ extern "C" {
 #define MADV_NOHUGEPAGE  15
 #define MADV_DONTDUMP    16
 #define MADV_DODUMP      17
+#define MADV_WIPEONFORK  18
+#define MADV_KEEPONFORK  19
 #define MADV_HWPOISON    100
 #define MADV_SOFT_OFFLINE 101
 #endif
 
+#ifdef _GNU_SOURCE
+#define MREMAP_MAYMOVE 1
+#define MREMAP_FIXED 2
+
+#define MLOCK_ONFAULT 0x01
+
+#define MFD_CLOEXEC 0x0001U
+#define MFD_ALLOW_SEALING 0x0002U
+#define MFD_HUGETLB 0x0004U
+#endif
+
 #include <bits/mman.h>
 
 void *mmap (void *, size_t, int, int, int, off_t);
@@ -92,14 +121,13 @@ int mlockall (int);
 int munlockall (void);
 
 #ifdef _GNU_SOURCE
-#define MREMAP_MAYMOVE 1
-#define MREMAP_FIXED 2
 void *mremap (void *, size_t, size_t, int, ...);
 int remap_file_pages (void *, size_t, int, size_t, int);
+int memfd_create (const char *, unsigned);
+int mlock2 (const void *, size_t, unsigned);
 #endif
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define MLOCK_ONFAULT   0x01
 int madvise (void *, size_t, int);
 int mincore (void *, size_t, unsigned char *);
 #endif
diff --git a/include/sys/msg.h b/include/sys/msg.h
index 139f22b7..be6afc34 100644
--- a/include/sys/msg.h
+++ b/include/sys/msg.h
@@ -27,6 +27,7 @@ typedef unsigned long msglen_t;
 
 #define MSG_STAT 11
 #define MSG_INFO 12
+#define MSG_STAT_ANY 13
 
 struct msginfo {
 	int msgpool, msgmap, msgmax, msgmnb, msgmni, msgssz, msgtql;
diff --git a/include/sys/prctl.h b/include/sys/prctl.h
index 24f4f8bd..af76408c 100644
--- a/include/sys/prctl.h
+++ b/include/sys/prctl.h
@@ -130,6 +130,21 @@ struct prctl_mm_map {
 #define PR_CAP_AMBIENT_LOWER    3
 #define PR_CAP_AMBIENT_CLEAR_ALL 4
 
+#define PR_SVE_SET_VL           50
+#define PR_SVE_SET_VL_ONEXEC (1 << 18)
+#define PR_SVE_GET_VL           51
+#define PR_SVE_VL_LEN_MASK 0xffff
+#define PR_SVE_VL_INHERIT (1 << 17)
+
+#define PR_GET_SPECULATION_CTRL 52
+#define PR_SET_SPECULATION_CTRL 53
+#define PR_SPEC_STORE_BYPASS 0
+#define PR_SPEC_NOT_AFFECTED 0
+#define PR_SPEC_PRCTL (1UL << 0)
+#define PR_SPEC_ENABLE (1UL << 1)
+#define PR_SPEC_DISABLE (1UL << 2)
+#define PR_SPEC_FORCE_DISABLE (1UL << 3)
+
 int prctl (int, ...);
 
 #ifdef __cplusplus
diff --git a/include/sys/ptrace.h b/include/sys/ptrace.h
index d9d45408..229e1f3d 100644
--- a/include/sys/ptrace.h
+++ b/include/sys/ptrace.h
@@ -40,6 +40,7 @@ extern "C" {
 #define PTRACE_GETSIGMASK 0x420a
 #define PTRACE_SETSIGMASK 0x420b
 #define PTRACE_SECCOMP_GET_FILTER 0x420c
+#define PTRACE_SECCOMP_GET_METADATA 0x420d
 
 #define PT_READ_I PTRACE_PEEKTEXT
 #define PT_READ_D PTRACE_PEEKDATA
@@ -83,15 +84,23 @@ extern "C" {
 #define PTRACE_EVENT_VFORK_DONE 5
 #define PTRACE_EVENT_EXIT 6
 #define PTRACE_EVENT_SECCOMP 7
+#define PTRACE_EVENT_STOP 128
 
 #define PTRACE_PEEKSIGINFO_SHARED 1
 
-struct ptrace_peeksiginfo_args {
+#include <bits/ptrace.h>
+
+struct __ptrace_peeksiginfo_args {
 	uint64_t off;
 	uint32_t flags;
 	int32_t nr;
 };
 
+struct __ptrace_seccomp_metadata {
+	uint64_t filter_off;
+	uint64_t flags;
+};
+
 long ptrace(int, ...);
 
 #ifdef __cplusplus
diff --git a/include/sys/random.h b/include/sys/random.h
new file mode 100644
index 00000000..4ee7bf2c
--- /dev/null
+++ b/include/sys/random.h
@@ -0,0 +1,19 @@
+#ifndef _SYS_RANDOM_H
+#define _SYS_RANDOM_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __NEED_size_t
+#define __NEED_ssize_t
+#include <bits/alltypes.h>
+
+#define GRND_NONBLOCK	0x0001
+#define GRND_RANDOM	0x0002
+
+ssize_t getrandom(void *, size_t, unsigned);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/include/sys/sem.h b/include/sys/sem.h
index e7c36980..61cdb83d 100644
--- a/include/sys/sem.h
+++ b/include/sys/sem.h
@@ -33,6 +33,7 @@ extern "C" {
 
 #define SEM_STAT 18
 #define SEM_INFO 19
+#define SEM_STAT_ANY 20
 
 struct  seminfo {
 	int semmap;
diff --git a/include/sys/shm.h b/include/sys/shm.h
index 67be822b..662fde59 100644
--- a/include/sys/shm.h
+++ b/include/sys/shm.h
@@ -35,11 +35,25 @@ extern "C" {
 #define SHM_UNLOCK 12
 #define SHM_STAT 13
 #define SHM_INFO 14
+#define SHM_STAT_ANY 15
 #define SHM_DEST 01000
 #define SHM_LOCKED 02000
 #define SHM_HUGETLB 04000
 #define SHM_NORESERVE 010000
 
+#define SHM_HUGE_SHIFT 26
+#define SHM_HUGE_MASK  0x3f
+#define SHM_HUGE_64KB  (16 << 26)
+#define SHM_HUGE_512KB (19 << 26)
+#define SHM_HUGE_1MB   (20 << 26)
+#define SHM_HUGE_2MB   (21 << 26)
+#define SHM_HUGE_8MB   (23 << 26)
+#define SHM_HUGE_16MB  (24 << 26)
+#define SHM_HUGE_256MB (28 << 26)
+#define SHM_HUGE_1GB   (30 << 26)
+#define SHM_HUGE_2GB   (31 << 26)
+#define SHM_HUGE_16GB  (34U << 26)
+
 typedef unsigned long shmatt_t;
 
 void *shmat(int, const void *, int);
diff --git a/include/sys/socket.h b/include/sys/socket.h
index 051d20e0..14be6e99 100644
--- a/include/sys/socket.h
+++ b/include/sys/socket.h
@@ -108,7 +108,8 @@ struct linger {
 #define PF_VSOCK        40
 #define PF_KCM          41
 #define PF_QIPCRTR      42
-#define PF_MAX          43
+#define PF_SMC          43
+#define PF_MAX          44
 
 #define AF_UNSPEC       PF_UNSPEC
 #define AF_LOCAL        PF_LOCAL
@@ -156,6 +157,7 @@ struct linger {
 #define AF_VSOCK        PF_VSOCK
 #define AF_KCM          PF_KCM
 #define AF_QIPCRTR      PF_QIPCRTR
+#define AF_SMC          PF_SMC
 #define AF_MAX          PF_MAX
 
 #ifndef SO_DEBUG
@@ -181,6 +183,7 @@ struct linger {
 #define SO_RCVTIMEO     20
 #define SO_SNDTIMEO     21
 #define SO_ACCEPTCONN   30
+#define SO_PEERSEC      31
 #define SO_SNDBUFFORCE  32
 #define SO_RCVBUFFORCE  33
 #define SO_PROTOCOL     38
@@ -201,7 +204,6 @@ struct linger {
 #define SO_TIMESTAMP            29
 #define SCM_TIMESTAMP           SO_TIMESTAMP
 
-#define SO_PEERSEC              31
 #define SO_PASSSEC              34
 #define SO_TIMESTAMPNS          35
 #define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
@@ -230,6 +232,7 @@ struct linger {
 #define SO_COOKIE               57
 #define SCM_TIMESTAMPING_PKTINFO 58
 #define SO_PEERGROUPS           59
+#define SO_ZEROCOPY             60
 
 #ifndef SOL_SOCKET
 #define SOL_SOCKET      1
@@ -261,6 +264,7 @@ struct linger {
 #define SOL_ALG         279
 #define SOL_NFC         280
 #define SOL_KCM         281
+#define SOL_TLS         282
 
 #define SOMAXCONN       128
 
@@ -282,6 +286,7 @@ struct linger {
 #define MSG_MORE      0x8000
 #define MSG_WAITFORONE 0x10000
 #define MSG_BATCH     0x40000
+#define MSG_ZEROCOPY  0x4000000
 #define MSG_FASTOPEN  0x20000000
 #define MSG_CMSG_CLOEXEC 0x40000000
 
diff --git a/include/sys/soundcard.h b/include/sys/soundcard.h
index fade986f..5ca77646 100644
--- a/include/sys/soundcard.h
+++ b/include/sys/soundcard.h
@@ -1 +1 @@
-#include <linux/soundcard.h>
+#include <bits/soundcard.h>
diff --git a/include/sys/statvfs.h b/include/sys/statvfs.h
index e0839eca..ef07d684 100644
--- a/include/sys/statvfs.h
+++ b/include/sys/statvfs.h
@@ -42,6 +42,7 @@ int fstatvfs (int, struct statvfs *);
 #define ST_IMMUTABLE   512
 #define ST_NOATIME     1024
 #define ST_NODIRATIME  2048
+#define ST_RELATIME    4096
 
 #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
 #define statvfs64 statvfs
diff --git a/include/sys/vt.h b/include/sys/vt.h
index 834abfbc..5000de49 100644
--- a/include/sys/vt.h
+++ b/include/sys/vt.h
@@ -1 +1 @@
-#include <linux/vt.h>
+#include <bits/vt.h>
diff --git a/include/tar.h b/include/tar.h
index be589842..2eba66ec 100644
--- a/include/tar.h
+++ b/include/tar.h
@@ -1,9 +1,13 @@
 #ifndef	_TAR_H
 #define	_TAR_H
 
+#include <features.h>
+
 #define TSUID   04000
 #define TSGID   02000
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
 #define TSVTX   01000
+#endif
 #define TUREAD  00400
 #define TUWRITE 00200
 #define TUEXEC  00100
diff --git a/include/time.h b/include/time.h
index 672b3fc3..c5946dd0 100644
--- a/include/time.h
+++ b/include/time.h
@@ -58,11 +58,14 @@ struct tm *gmtime (const time_t *);
 struct tm *localtime (const time_t *);
 char *asctime (const struct tm *);
 char *ctime (const time_t *);
-int timespec_get(struct timespec *, int);
 
-#define CLOCKS_PER_SEC 1000000L
+#if __STDC_VERSION__ >= 201112L
+int timespec_get(struct timespec *, int);
 
 #define TIME_UTC 1
+#endif
+
+#define CLOCKS_PER_SEC 1000000L
 
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
diff --git a/include/uchar.h b/include/uchar.h
index 8dabf1ed..7e5c4d40 100644
--- a/include/uchar.h
+++ b/include/uchar.h
@@ -3,7 +3,9 @@
 
 #ifdef __cplusplus
 extern "C" {
-#else
+#endif
+
+#if __cplusplus < 201103L
 typedef unsigned short char16_t;
 typedef unsigned char32_t;
 #endif
diff --git a/include/unistd.h b/include/unistd.h
index 09190af4..1bdd3292 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -128,12 +128,11 @@ long fpathconf(int, int);
 long sysconf(int);
 size_t confstr(int, char *, size_t);
 
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define F_ULOCK 0
 #define F_LOCK  1
 #define F_TLOCK 2
 #define F_TEST  3
-
-#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 int setreuid(uid_t, uid_t);
 int setregid(gid_t, gid_t);
 int lockf(int, int, off_t);
@@ -176,6 +175,7 @@ int acct(const char *);
 long syscall(long, ...);
 int execvpe(const char *, char *const [], char *const []);
 int issetugid(void);
+int getentropy(void *, size_t);
 #endif
 
 #ifdef _GNU_SOURCE
@@ -274,6 +274,7 @@ int eaccess(const char *, int);
 #define _PC_ALLOC_SIZE_MIN	18
 #define _PC_SYMLINK_MAX	19
 #define _PC_2_SYMLINKS	20
+#define _PC_TIMESTAMP_RESOLUTION 21
 
 #define _SC_ARG_MAX	0
 #define _SC_CHILD_MAX	1
@@ -417,6 +418,7 @@ int eaccess(const char *, int);
 #define _SC_XOPEN_STREAMS	246
 #define _SC_THREAD_ROBUST_PRIO_INHERIT	247
 #define _SC_THREAD_ROBUST_PRIO_PROTECT	248
+#define _SC_XOPEN_UUCP	249
 
 #define _CS_PATH	0
 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	1
@@ -459,6 +461,8 @@ int eaccess(const char *, int);
 #define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS	1147
 #define _CS_V6_ENV	1148
 #define _CS_V7_ENV	1149
+#define _CS_POSIX_V7_THREADS_CFLAGS	1150
+#define _CS_POSIX_V7_THREADS_LDFLAGS	1151
 
 #ifdef __cplusplus
 }
diff --git a/ldso/dynlink.c b/ldso/dynlink.c
index 9bf6924b..87281ddb 100644
--- a/ldso/dynlink.c
+++ b/ldso/dynlink.c
@@ -133,6 +133,9 @@ static struct dso *const nodeps_dummy;
 
 struct debug *_dl_debug_addr = &debug;
 
+__attribute__((__visibility__("hidden")))
+extern int __malloc_replaced;
+
 __attribute__((__visibility__("hidden")))
 void (*const __init_array_start)(void)=0, (*const __fini_array_start)(void)=0;
 
@@ -158,10 +161,26 @@ static void *laddr(const struct dso *p, size_t v)
 	for (j=0; v-p->loadmap->segs[j].p_vaddr >= p->loadmap->segs[j].p_memsz; j++);
 	return (void *)(v - p->loadmap->segs[j].p_vaddr + p->loadmap->segs[j].addr);
 }
+static void *laddr_pg(const struct dso *p, size_t v)
+{
+	size_t j=0;
+	size_t pgsz = PAGE_SIZE;
+	if (!p->loadmap) return p->base + v;
+	for (j=0; ; j++) {
+		size_t a = p->loadmap->segs[j].p_vaddr;
+		size_t b = a + p->loadmap->segs[j].p_memsz;
+		a &= -pgsz;
+		b += pgsz-1;
+		b &= -pgsz;
+		if (v-a<b-a) break;
+	}
+	return (void *)(v - p->loadmap->segs[j].p_vaddr + p->loadmap->segs[j].addr);
+}
 #define fpaddr(p, v) ((void (*)())&(struct funcdesc){ \
 	laddr(p, v), (p)->got })
 #else
 #define laddr(p, v) (void *)((p)->base + (v))
+#define laddr_pg(p, v) laddr(p, v)
 #define fpaddr(p, v) ((void (*)())laddr(p, v))
 #endif
 
@@ -366,6 +385,14 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri
 		sym_val = def.sym ? (size_t)laddr(def.dso, def.sym->st_value) : 0;
 		tls_val = def.sym ? def.sym->st_value : 0;
 
+		if ((type == REL_TPOFF || type == REL_TPOFF_NEG)
+		    && runtime && def.dso->tls_id > static_tls_cnt) {
+			error("Error relocating %s: %s: initial-exec TLS "
+				"resolves to dynamic definition in %s",
+				dso->name, name, def.dso->name);
+			longjmp(*rtld_fail, 1);
+		}
+
 		switch(type) {
 		case REL_NONE:
 			break;
@@ -419,7 +446,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri
 #endif
 		case REL_TLSDESC:
 			if (stride<3) addend = reloc_addr[1];
-			if (runtime && def.dso->tls_id >= static_tls_cnt) {
+			if (runtime && def.dso->tls_id > static_tls_cnt) {
 				struct td_index *new = malloc(sizeof *new);
 				if (!new) {
 					error(
@@ -476,23 +503,16 @@ static void redo_lazy_relocs()
 /* A huge hack: to make up for the wastefulness of shared libraries
  * needing at least a page of dirty memory even if they have no global
  * data, we reclaim the gaps at the beginning and end of writable maps
- * and "donate" them to the heap by setting up minimal malloc
- * structures and then freeing them. */
+ * and "donate" them to the heap. */
 
 static void reclaim(struct dso *dso, size_t start, size_t end)
 {
-	size_t *a, *z;
+	void __malloc_donate(char *, char *);
 	if (start >= dso->relro_start && start < dso->relro_end) start = dso->relro_end;
 	if (end   >= dso->relro_start && end   < dso->relro_end) end = dso->relro_start;
-	start = start + 6*sizeof(size_t)-1 & -4*sizeof(size_t);
-	end = (end & -4*sizeof(size_t)) - 2*sizeof(size_t);
-	if (start>end || end-start < 4*sizeof(size_t)) return;
-	a = laddr(dso, start);
-	z = laddr(dso, end);
-	a[-2] = 1;
-	a[-1] = z[0] = end-start + 2*sizeof(size_t) | 1;
-	z[1] = 1;
-	free(a);
+	if (start >= end) return;
+	char *base = laddr_pg(dso, start);
+	__malloc_donate(base, base+(end-start));
 }
 
 static void reclaim_gaps(struct dso *dso)
@@ -500,7 +520,6 @@ static void reclaim_gaps(struct dso *dso)
 	Phdr *ph = dso->phdr;
 	size_t phcnt = dso->phnum;
 
-	if (DL_FDPIC) return; // FIXME
 	for (; phcnt--; ph=(void *)((char *)ph+dso->phentsize)) {
 		if (ph->p_type!=PT_LOAD) continue;
 		if ((ph->p_flags&(PF_R|PF_W))!=(PF_R|PF_W)) continue;
@@ -695,18 +714,17 @@ static void *map_library(int fd, struct dso *dso)
 			dso->phnum = eh->e_phnum;
 			dso->phentsize = eh->e_phentsize;
 		}
-		/* Reuse the existing mapping for the lowest-address LOAD */
-		if ((ph->p_vaddr & -PAGE_SIZE) == addr_min && !DL_NOMMU_SUPPORT)
-			continue;
 		this_min = ph->p_vaddr & -PAGE_SIZE;
 		this_max = ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE;
 		off_start = ph->p_offset & -PAGE_SIZE;
 		prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
 			((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
 			((ph->p_flags&PF_X) ? PROT_EXEC : 0));
-		if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
-			goto error;
-		if (ph->p_memsz > ph->p_filesz) {
+		/* Reuse the existing mapping for the lowest-address LOAD */
+		if ((ph->p_vaddr & -PAGE_SIZE) != addr_min || DL_NOMMU_SUPPORT)
+			if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
+				goto error;
+		if (ph->p_memsz > ph->p_filesz && (ph->p_flags&PF_W)) {
 			size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz;
 			size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE;
 			memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1);
@@ -1583,8 +1601,9 @@ _Noreturn void __dls3(size_t *sp)
 		libc.tls_head = tls_tail = &app.tls;
 		app.tls_id = tls_cnt = 1;
 #ifdef TLS_ABOVE_TP
-		app.tls.offset = 0;
-		tls_offset = app.tls.size
+		app.tls.offset = GAP_ABOVE_TP;
+		app.tls.offset += -GAP_ABOVE_TP & (app.tls.align-1);
+		tls_offset = app.tls.offset + app.tls.size
 			+ ( -((uintptr_t)app.tls.image + app.tls.size)
 			& (app.tls.align-1) );
 #else
@@ -1683,6 +1702,12 @@ _Noreturn void __dls3(size_t *sp)
 	if (ldso_fail) _exit(127);
 	if (ldd_mode) _exit(0);
 
+	/* Determine if malloc was interposed by a replacement implementation
+	 * so that calloc and the memalign family can harden against the
+	 * possibility of incomplete replacement. */
+	if (find_sym(head, "malloc", 1).dso != &ldso)
+		__malloc_replaced = 1;
+
 	/* Switch to runtime mode: any further failures in the dynamic
 	 * linker are a reportable failure rather than a fatal startup
 	 * error. */
@@ -1861,8 +1886,17 @@ static void *addr2dso(size_t a)
 					return p;
 			}
 		} else {
+			Phdr *ph = p->phdr;
+			size_t phcnt = p->phnum;
+			size_t entsz = p->phentsize;
+			size_t base = (size_t)p->base;
+			for (; phcnt--; ph=(void *)((char *)ph+entsz)) {
+				if (ph->p_type != PT_LOAD) continue;
+				if (a-base-ph->p_vaddr < ph->p_memsz)
+					return p;
+			}
 			if (a-(size_t)p->map < p->map_len)
-				return p;
+				return 0;
 		}
 	}
 	return 0;
@@ -1926,16 +1960,18 @@ failed:
 	return 0;
 }
 
-int dladdr(const void *addr, Dl_info *info)
+int dladdr(const void *addr_arg, Dl_info *info)
 {
+	size_t addr = (size_t)addr_arg;
 	struct dso *p;
 	Sym *sym, *bestsym;
 	uint32_t nsym;
 	char *strings;
-	void *best = 0;
+	size_t best = 0;
+	size_t besterr = -1;
 
 	pthread_rwlock_rdlock(&lock);
-	p = addr2dso((size_t)addr);
+	p = addr2dso(addr);
 	pthread_rwlock_unlock(&lock);
 
 	if (!p) return 0;
@@ -1945,11 +1981,12 @@ int dladdr(const void *addr, Dl_info *info)
 	nsym = count_syms(p);
 
 	if (DL_FDPIC) {
-		size_t idx = ((size_t)addr-(size_t)p->funcdescs)
+		size_t idx = (addr-(size_t)p->funcdescs)
 			/ sizeof(*p->funcdescs);
 		if (idx < nsym && (sym[idx].st_info&0xf) == STT_FUNC) {
-			best = p->funcdescs + idx;
+			best = (size_t)(p->funcdescs + idx);
 			bestsym = sym + idx;
+			besterr = 0;
 		}
 	}
 
@@ -1957,25 +1994,35 @@ int dladdr(const void *addr, Dl_info *info)
 		if (sym->st_value
 		 && (1<<(sym->st_info&0xf) & OK_TYPES)
 		 && (1<<(sym->st_info>>4) & OK_BINDS)) {
-			void *symaddr = laddr(p, sym->st_value);
-			if (symaddr > addr || symaddr < best)
+			size_t symaddr = (size_t)laddr(p, sym->st_value);
+			if (symaddr > addr || symaddr <= best)
 				continue;
 			best = symaddr;
 			bestsym = sym;
+			besterr = addr - symaddr;
 			if (addr == symaddr)
 				break;
 		}
 	}
 
-	if (!best) return 0;
-
-	if (DL_FDPIC && (bestsym->st_info&0xf) == STT_FUNC)
-		best = p->funcdescs + (bestsym - p->syms);
+	if (bestsym && besterr > bestsym->st_size-1) {
+		best = 0;
+		bestsym = 0;
+	}
 
 	info->dli_fname = p->name;
 	info->dli_fbase = p->map;
+
+	if (!best) {
+		info->dli_sname = 0;
+		info->dli_saddr = 0;
+		return 1;
+	}
+
+	if (DL_FDPIC && (bestsym->st_info&0xf) == STT_FUNC)
+		best = (size_t)(p->funcdescs + (bestsym - p->syms));
 	info->dli_sname = strings + bestsym->st_name;
-	info->dli_saddr = best;
+	info->dli_saddr = (void *)best;
 
 	return 1;
 }
diff --git a/src/complex/casin.c b/src/complex/casin.c
index dfdda988..01ed6184 100644
--- a/src/complex/casin.c
+++ b/src/complex/casin.c
@@ -12,5 +12,6 @@ double complex casin(double complex z)
 	x = creal(z);
 	y = cimag(z);
 	w = CMPLX(1.0 - (x - y)*(x + y), -2.0*x*y);
-	return clog(CMPLX(-y, x) + csqrt(w));
+	double complex r = clog(CMPLX(-y, x) + csqrt(w));
+	return CMPLX(cimag(r), -creal(r));
 }
diff --git a/src/complex/casinf.c b/src/complex/casinf.c
index 93f0e335..4fcb76fc 100644
--- a/src/complex/casinf.c
+++ b/src/complex/casinf.c
@@ -10,5 +10,6 @@ float complex casinf(float complex z)
 	x = crealf(z);
 	y = cimagf(z);
 	w = CMPLXF(1.0 - (x - y)*(x + y), -2.0*x*y);
-	return clogf(CMPLXF(-y, x) + csqrtf(w));
+	float complex r = clogf(CMPLXF(-y, x) + csqrtf(w));
+	return CMPLXF(cimagf(r), -crealf(r));
 }
diff --git a/src/complex/casinl.c b/src/complex/casinl.c
index 0916c60f..3b7ceba7 100644
--- a/src/complex/casinl.c
+++ b/src/complex/casinl.c
@@ -15,6 +15,7 @@ long double complex casinl(long double complex z)
 	x = creall(z);
 	y = cimagl(z);
 	w = CMPLXL(1.0 - (x - y)*(x + y), -2.0*x*y);
-	return clogl(CMPLXL(-y, x) + csqrtl(w));
+	long double complex r = clogl(CMPLXL(-y, x) + csqrtl(w));
+	return CMPLXL(cimagl(r), -creall(r));
 }
 #endif
diff --git a/src/complex/catan.c b/src/complex/catan.c
index 39ce6cf2..7dc2afeb 100644
--- a/src/complex/catan.c
+++ b/src/complex/catan.c
@@ -91,29 +91,17 @@ double complex catan(double complex z)
 	x = creal(z);
 	y = cimag(z);
 
-	if (x == 0.0 && y > 1.0)
-		goto ovrf;
-
 	x2 = x * x;
 	a = 1.0 - x2 - (y * y);
-	if (a == 0.0)
-		goto ovrf;
 
 	t = 0.5 * atan2(2.0 * x, a);
 	w = _redupi(t);
 
 	t = y - 1.0;
 	a = x2 + (t * t);
-	if (a == 0.0)
-		goto ovrf;
 
 	t = y + 1.0;
 	a = (x2 + t * t)/a;
-	w = w + (0.25 * log(a)) * I;
-	return w;
-
-ovrf:
-	// FIXME
-	w = MAXNUM + MAXNUM * I;
+	w = CMPLX(w, 0.25 * log(a));
 	return w;
 }
diff --git a/src/conf/confstr.c b/src/conf/confstr.c
index 02cb1aa2..8f870a69 100644
--- a/src/conf/confstr.c
+++ b/src/conf/confstr.c
@@ -6,8 +6,8 @@ size_t confstr(int name, char *buf, size_t len)
 {
 	const char *s = "";
 	if (!name) {
-		s = "/bin:/usr/bin";
-	} else if ((name&~4U)!=1 && name-_CS_POSIX_V6_ILP32_OFF32_CFLAGS>33U) {
+		s = "/usr/5bin:/usr/bin:/bin";
+	} else if ((name&~4U)!=1 && name-_CS_POSIX_V6_ILP32_OFF32_CFLAGS>35U) {
 		errno = EINVAL;
 		return 0;
 	}
diff --git a/src/conf/fpathconf.c b/src/conf/fpathconf.c
index 8eb037e6..b6a9d63e 100644
--- a/src/conf/fpathconf.c
+++ b/src/conf/fpathconf.c
@@ -4,7 +4,7 @@
 
 long fpathconf(int fd, int name)
 {
-	static const short values[] = {
+	static const long values[] = {
 		[_PC_LINK_MAX] = _POSIX_LINK_MAX,
 		[_PC_MAX_CANON] = _POSIX_MAX_CANON,
 		[_PC_MAX_INPUT] = _POSIX_MAX_INPUT,
@@ -24,8 +24,9 @@ long fpathconf(int fd, int name)
 		[_PC_REC_MIN_XFER_SIZE] = 4096,
 		[_PC_REC_XFER_ALIGN] = 4096,
 		[_PC_ALLOC_SIZE_MIN] = 4096,
-		[_PC_SYMLINK_MAX] = SYMLINK_MAX,
-		[_PC_2_SYMLINKS] = 1
+		[_PC_SYMLINK_MAX] = -1,
+		[_PC_2_SYMLINKS] = 1,
+		[_PC_TIMESTAMP_RESOLUTION] = 100000000,
 	};
 	if (name >= sizeof(values)/sizeof(values[0])) {
 		errno = EINVAL;
diff --git a/src/conf/sysconf.c b/src/conf/sysconf.c
index 9ce330a5..483e1635 100644
--- a/src/conf/sysconf.c
+++ b/src/conf/sysconf.c
@@ -18,6 +18,7 @@
 #define JT_PHYS_PAGES JT(8)
 #define JT_AVPHYS_PAGES JT(9)
 #define JT_ZERO JT(10)
+#define JT_DELAYTIMER_MAX JT(11)
 
 #define RLIM(x) (-32768|(RLIMIT_ ## x))
 
@@ -33,7 +34,7 @@ long sysconf(int name)
 		[_SC_TZNAME_MAX] = TZNAME_MAX,
 		[_SC_JOB_CONTROL] = 1,
 		[_SC_SAVED_IDS] = 1,
-		[_SC_REALTIME_SIGNALS] = 1,
+		[_SC_REALTIME_SIGNALS] = VER,
 		[_SC_PRIORITY_SCHEDULING] = -1,
 		[_SC_TIMERS] = VER,
 		[_SC_ASYNCHRONOUS_IO] = VER,
@@ -50,7 +51,7 @@ long sysconf(int name)
 		[_SC_AIO_LISTIO_MAX] = -1,
 		[_SC_AIO_MAX] = -1,
 		[_SC_AIO_PRIO_DELTA_MAX] = JT_ZERO, /* ?? */
-		[_SC_DELAYTIMER_MAX] = _POSIX_DELAYTIMER_MAX,
+		[_SC_DELAYTIMER_MAX] = JT_DELAYTIMER_MAX,
 		[_SC_MQ_OPEN_MAX] = -1,
 		[_SC_MQ_PRIO_MAX] = JT_MQ_PRIO_MAX,
 		[_SC_VERSION] = VER,
@@ -111,8 +112,8 @@ long sysconf(int name)
 		[_SC_XOPEN_XPG4] = -1,
 		[_SC_NZERO] = NZERO,
 		[_SC_XBS5_ILP32_OFF32] = -1,
-		[_SC_XBS5_ILP32_OFFBIG] = sizeof(long)==4 ? 1 : JT_ZERO,
-		[_SC_XBS5_LP64_OFF64] = sizeof(long)==8 ? 1 : JT_ZERO,
+		[_SC_XBS5_ILP32_OFFBIG] = sizeof(long)==4 ? 1 : -1,
+		[_SC_XBS5_LP64_OFF64] = sizeof(long)==8 ? 1 : -1,
 		[_SC_XBS5_LPBIG_OFFBIG] = -1,
 		[_SC_XOPEN_LEGACY] = -1,
 		[_SC_XOPEN_REALTIME] = -1,
@@ -141,8 +142,8 @@ long sysconf(int name)
 		[_SC_STREAMS] = JT_ZERO,
 		[_SC_2_PBS_CHECKPOINT] = -1,
 		[_SC_V6_ILP32_OFF32] = -1,
-		[_SC_V6_ILP32_OFFBIG] = sizeof(long)==4 ? 1 : JT_ZERO,
-		[_SC_V6_LP64_OFF64] = sizeof(long)==8 ? 1 : JT_ZERO,
+		[_SC_V6_ILP32_OFFBIG] = sizeof(long)==4 ? 1 : -1,
+		[_SC_V6_LP64_OFF64] = sizeof(long)==8 ? 1 : -1,
 		[_SC_V6_LPBIG_OFFBIG] = -1,
 		[_SC_HOST_NAME_MAX] = HOST_NAME_MAX,
 		[_SC_TRACE] = -1,
@@ -153,8 +154,8 @@ long sysconf(int name)
 		[_SC_IPV6] = VER,
 		[_SC_RAW_SOCKETS] = VER,
 		[_SC_V7_ILP32_OFF32] = -1,
-		[_SC_V7_ILP32_OFFBIG] = sizeof(long)==4 ? 1 : JT_ZERO,
-		[_SC_V7_LP64_OFF64] = sizeof(long)==8 ? 1 : JT_ZERO,
+		[_SC_V7_ILP32_OFFBIG] = sizeof(long)==4 ? 1 : -1,
+		[_SC_V7_LP64_OFF64] = sizeof(long)==8 ? 1 : -1,
 		[_SC_V7_LPBIG_OFFBIG] = -1,
 		[_SC_SS_REPL_MAX] = -1,
 		[_SC_TRACE_EVENT_NAME_MAX] = -1,
@@ -164,6 +165,7 @@ long sysconf(int name)
 		[_SC_XOPEN_STREAMS] = JT_ZERO,
 		[_SC_THREAD_ROBUST_PRIO_INHERIT] = -1,
 		[_SC_THREAD_ROBUST_PRIO_PROTECT] = -1,
+		[_SC_XOPEN_UUCP] = -1,
 	};
 
 	if (name >= sizeof(values)/sizeof(values[0]) || !values[name]) {
@@ -190,6 +192,8 @@ long sysconf(int name)
 		return PAGE_SIZE;
 	case JT_SEM_VALUE_MAX & 255:
 		return SEM_VALUE_MAX;
+	case JT_DELAYTIMER_MAX & 255:
+		return DELAYTIMER_MAX;
 	case JT_NPROCESSORS_CONF & 255:
 	case JT_NPROCESSORS_ONLN & 255: ;
 		unsigned char set[128] = {1};
diff --git a/src/dirent/__dirent.h b/src/dirent/__dirent.h
index 101b0368..828a5f17 100644
--- a/src/dirent/__dirent.h
+++ b/src/dirent/__dirent.h
@@ -1,9 +1,11 @@
 struct __dirstream
 {
-	int fd;
 	off_t tell;
+	int fd;
 	int buf_pos;
 	int buf_end;
 	volatile int lock[1];
+	/* Any changes to this struct must preserve the property:
+	 * offsetof(struct __dirent, buf) % sizeof(off_t) == 0 */
 	char buf[2048];
 };
diff --git a/src/dirent/readdir.c b/src/dirent/readdir.c
index 2cf0632c..eef92f79 100644
--- a/src/dirent/readdir.c
+++ b/src/dirent/readdir.c
@@ -1,10 +1,12 @@
 #include <dirent.h>
 #include <errno.h>
+#include <stddef.h>
 #include "__dirent.h"
 #include "syscall.h"
 #include "libc.h"
 
-int __getdents(int, struct dirent *, size_t);
+typedef char dirstream_buf_alignment_check[1-2*(int)(
+	offsetof(struct __dirstream, buf) % sizeof(off_t))];
 
 struct dirent *readdir(DIR *dir)
 {
diff --git a/src/env/__init_tls.c b/src/env/__init_tls.c
index b125eb1f..31d324a8 100644
--- a/src/env/__init_tls.c
+++ b/src/env/__init_tls.c
@@ -15,7 +15,8 @@ int __init_tp(void *p)
 	int r = __set_thread_area(TP_ADJ(p));
 	if (r < 0) return -1;
 	if (!r) libc.can_do_threads = 1;
-	td->tid = __syscall(SYS_set_tid_address, &td->tid);
+	td->detach_state = DT_JOINABLE;
+	td->tid = __syscall(SYS_set_tid_address, &td->detach_state);
 	td->locale = &libc.global_locale;
 	td->robust_list.head = &td->robust_list.head;
 	return 0;
@@ -103,13 +104,19 @@ static void static_init_tls(size_t *aux)
 
 	main_tls.size += (-main_tls.size - (uintptr_t)main_tls.image)
 		& (main_tls.align-1);
-	if (main_tls.align < MIN_TLS_ALIGN) main_tls.align = MIN_TLS_ALIGN;
-#ifndef TLS_ABOVE_TP
+#ifdef TLS_ABOVE_TP
+	main_tls.offset = GAP_ABOVE_TP;
+	main_tls.offset += -GAP_ABOVE_TP & (main_tls.align-1);
+#else
 	main_tls.offset = main_tls.size;
 #endif
+	if (main_tls.align < MIN_TLS_ALIGN) main_tls.align = MIN_TLS_ALIGN;
 
 	libc.tls_align = main_tls.align;
 	libc.tls_size = 2*sizeof(void *) + sizeof(struct pthread)
+#ifdef TLS_ABOVE_TP
+		+ main_tls.offset
+#endif
 		+ main_tls.size + main_tls.align
 		+ MIN_TLS_ALIGN-1 & -MIN_TLS_ALIGN;
 
diff --git a/src/env/__libc_start_main.c b/src/env/__libc_start_main.c
index 2d758af7..0583f686 100644
--- a/src/env/__libc_start_main.c
+++ b/src/env/__libc_start_main.c
@@ -42,11 +42,13 @@ void __init_libc(char **envp, char *pn)
 		&& !aux[AT_SECURE]) return;
 
 	struct pollfd pfd[3] = { {.fd=0}, {.fd=1}, {.fd=2} };
+	int r =
 #ifdef SYS_poll
 	__syscall(SYS_poll, pfd, 3, 0);
 #else
 	__syscall(SYS_ppoll, pfd, 3, &(struct timespec){0}, 0, _NSIG/8);
 #endif
+	if (r<0) a_crash();
 	for (i=0; i<3; i++) if (pfd[i].revents&POLLNVAL)
 		if (__sys_open("/dev/null", O_RDWR)<0)
 			a_crash();
diff --git a/src/errno/__errno_location.c b/src/errno/__errno_location.c
index 7172a1be..ad9f9241 100644
--- a/src/errno/__errno_location.c
+++ b/src/errno/__errno_location.c
@@ -1,3 +1,4 @@
+#include <errno.h>
 #include "pthread_impl.h"
 
 int *__errno_location(void)
diff --git a/src/errno/__strerror.h b/src/errno/__strerror.h
index 915044b5..2f04d400 100644
--- a/src/errno/__strerror.h
+++ b/src/errno/__strerror.h
@@ -100,5 +100,6 @@ E(EREMOTEIO,    "Remote I/O error")
 E(EDQUOT,       "Quota exceeded")
 E(ENOMEDIUM,    "No medium found")
 E(EMEDIUMTYPE,  "Wrong medium type")
+E(EMULTIHOP,    "Multihop attempted")
 
 E(0,            "No error information")
diff --git a/src/exit/abort.c b/src/exit/abort.c
index ecc0f735..5e5a87c3 100644
--- a/src/exit/abort.c
+++ b/src/exit/abort.c
@@ -1,13 +1,31 @@
 #include <stdlib.h>
 #include <signal.h>
+#include <string.h>
 #include "syscall.h"
 #include "pthread_impl.h"
 #include "atomic.h"
 
 _Noreturn void abort(void)
 {
+	struct sigaction abrtaction;
+	sigset_t abrtset;
+
 	raise(SIGABRT);
 	__block_all_sigs(0);
+
+	/* Unblock just SIGABRT, and set default handler */
+	sigemptyset(&abrtset);
+	sigaddset(&abrtset, SIGABRT);
+	sigprocmask(SIG_UNBLOCK, &abrtset, 0);
+
+	memset(&abrtaction, 0, sizeof(struct sigaction));
+	abrtaction.sa_handler = SIG_DFL;
+
+	sigaction(SIGABRT, &abrtaction, NULL);
+
+	raise(SIGABRT);
+
+	/* Ok, give up. */
 	a_crash();
 	raise(SIGKILL);
 	_Exit(127);
diff --git a/src/fenv/m68k/fenv.c b/src/fenv/m68k/fenv.c
new file mode 100644
index 00000000..e60949d1
--- /dev/null
+++ b/src/fenv/m68k/fenv.c
@@ -0,0 +1,84 @@
+#include <fenv.h>
+
+#if __HAVE_68881__ || __mcffpu__
+
+static unsigned getsr()
+{
+	unsigned v;
+	__asm__ __volatile__ ("fmove.l %%fpsr,%0" : "=dm"(v));
+	return v;
+}
+
+static void setsr(unsigned v)
+{
+	__asm__ __volatile__ ("fmove.l %0,%%fpsr" : : "dm"(v));
+}
+
+static unsigned getcr()
+{
+	unsigned v;
+	__asm__ __volatile__ ("fmove.l %%fpcr,%0" : "=dm"(v));
+	return v;
+}
+
+static void setcr(unsigned v)
+{
+	__asm__ __volatile__ ("fmove.l %0,%%fpcr" : : "dm"(v));
+}
+
+int feclearexcept(int mask)
+{
+	if (mask & ~FE_ALL_EXCEPT) return -1;
+	setsr(getsr() & ~mask);
+	return 0;
+}
+
+int feraiseexcept(int mask)
+{
+	if (mask & ~FE_ALL_EXCEPT) return -1;
+	setsr(getsr() | mask);
+	return 0;
+}
+
+int fetestexcept(int mask)
+{
+	return getsr() & mask;
+}
+
+int fegetround(void)
+{
+	return getcr() & FE_UPWARD;
+}
+
+int __fesetround(int r)
+{
+	setcr((getcr() & ~FE_UPWARD) | r);
+	return 0;
+}
+
+int fegetenv(fenv_t *envp)
+{
+	envp->__control_register = getcr();
+	envp->__status_register = getsr();
+	__asm__ __volatile__ ("fmove.l %%fpiar,%0"
+		: "=dm"(envp->__instruction_address));
+	return 0;
+}
+
+int fesetenv(const fenv_t *envp)
+{
+	static const fenv_t default_env = { 0 };
+	if (envp == FE_DFL_ENV)
+		envp = &default_env;
+	setcr(envp->__control_register);
+	setsr(envp->__status_register);
+	__asm__ __volatile__ ("fmove.l %0,%%fpiar"
+		: : "dm"(envp->__instruction_address));
+	return 0;
+}
+
+#else
+
+#include "../fenv.c"
+
+#endif
diff --git a/src/internal/atomic.h b/src/internal/atomic.h
index ab473dd7..f938879b 100644
--- a/src/internal/atomic.h
+++ b/src/internal/atomic.h
@@ -251,6 +251,22 @@ static inline void a_crash()
 }
 #endif
 
+#ifndef a_ctz_32
+#define a_ctz_32 a_ctz_32
+static inline int a_ctz_32(uint32_t x)
+{
+#ifdef a_clz_32
+	return 31-a_clz_32(x&-x);
+#else
+	static const char debruijn32[32] = {
+		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+	};
+	return debruijn32[(x&-x)*0x076be629 >> 27];
+#endif
+}
+#endif
+
 #ifndef a_ctz_64
 #define a_ctz_64 a_ctz_64
 static inline int a_ctz_64(uint64_t x)
@@ -261,22 +277,23 @@ static inline int a_ctz_64(uint64_t x)
 		63, 52, 6, 26, 37, 40, 33, 47, 61, 45, 43, 21, 23, 58, 17, 10,
 		51, 25, 36, 32, 60, 20, 57, 16, 50, 31, 19, 15, 30, 14, 13, 12
 	};
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
 	if (sizeof(long) < 8) {
 		uint32_t y = x;
 		if (!y) {
 			y = x>>32;
-			return 32 + debruijn32[(y&-y)*0x076be629 >> 27];
+			return 32 + a_ctz_32(y);
 		}
-		return debruijn32[(y&-y)*0x076be629 >> 27];
+		return a_ctz_32(y);
 	}
 	return debruijn64[(x&-x)*0x022fdd63cc95386dull >> 58];
 }
 #endif
 
+static inline int a_ctz_l(unsigned long x)
+{
+	return (sizeof(long) < 8) ? a_ctz_32(x) : a_ctz_64(x);
+}
+
 #ifndef a_clz_64
 #define a_clz_64 a_clz_64
 static inline int a_clz_64(uint64_t x)
@@ -298,17 +315,4 @@ static inline int a_clz_64(uint64_t x)
 }
 #endif
 
-#ifndef a_ctz_l
-#define a_ctz_l a_ctz_l
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	if (sizeof(long) == 8) return a_ctz_64(x);
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-#endif
-
 #endif
diff --git a/src/internal/libm.h b/src/internal/libm.h
index df864111..a2505f7e 100644
--- a/src/internal/libm.h
+++ b/src/internal/libm.h
@@ -28,6 +28,17 @@ union ldshape {
 		uint16_t se;
 	} i;
 };
+#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __BIG_ENDIAN
+/* This is the m68k variant of 80-bit long double, and this definition only works
+ * on archs where the alignment requirement of uint64_t is <= 4. */
+union ldshape {
+	long double f;
+	struct {
+		uint16_t se;
+		uint16_t pad;
+		uint64_t m;
+	} i;
+};
 #elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __LITTLE_ENDIAN
 union ldshape {
 	long double f;
diff --git a/src/internal/m68k/syscall.s b/src/internal/m68k/syscall.s
new file mode 100644
index 00000000..9972a34d
--- /dev/null
+++ b/src/internal/m68k/syscall.s
@@ -0,0 +1,9 @@
+.global __syscall
+.hidden __syscall
+.type __syscall,%function
+__syscall:
+	movem.l %d2-%d5,-(%sp)
+	movem.l 20(%sp),%d0-%d5/%a0
+	trap #0
+	movem.l (%sp)+,%d2-%d5
+	rts
diff --git a/src/internal/malloc_impl.h b/src/internal/malloc_impl.h
new file mode 100644
index 00000000..5d025b06
--- /dev/null
+++ b/src/internal/malloc_impl.h
@@ -0,0 +1,45 @@
+#ifndef MALLOC_IMPL_H
+#define MALLOC_IMPL_H
+
+void *__mmap(void *, size_t, int, int, int, off_t);
+int __munmap(void *, size_t);
+void *__mremap(void *, size_t, size_t, int, ...);
+int __madvise(void *, size_t, int);
+
+struct chunk {
+	size_t psize, csize;
+	struct chunk *next, *prev;
+};
+
+struct bin {
+	volatile int lock[2];
+	struct chunk *head;
+	struct chunk *tail;
+};
+
+#define SIZE_ALIGN (4*sizeof(size_t))
+#define SIZE_MASK (-SIZE_ALIGN)
+#define OVERHEAD (2*sizeof(size_t))
+#define MMAP_THRESHOLD (0x1c00*SIZE_ALIGN)
+#define DONTCARE 16
+#define RECLAIM 163840
+
+#define CHUNK_SIZE(c) ((c)->csize & -2)
+#define CHUNK_PSIZE(c) ((c)->psize & -2)
+#define PREV_CHUNK(c) ((struct chunk *)((char *)(c) - CHUNK_PSIZE(c)))
+#define NEXT_CHUNK(c) ((struct chunk *)((char *)(c) + CHUNK_SIZE(c)))
+#define MEM_TO_CHUNK(p) (struct chunk *)((char *)(p) - OVERHEAD)
+#define CHUNK_TO_MEM(c) (void *)((char *)(c) + OVERHEAD)
+#define BIN_TO_CHUNK(i) (MEM_TO_CHUNK(&mal.bins[i].head))
+
+#define C_INUSE  ((size_t)1)
+
+#define IS_MMAPPED(c) !((c)->csize & (C_INUSE))
+
+__attribute__((__visibility__("hidden")))
+void __bin_chunk(struct chunk *);
+
+__attribute__((__visibility__("hidden")))
+extern int __malloc_replaced;
+
+#endif
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index f6a4f2c2..3826bd8e 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -19,38 +19,36 @@ struct pthread {
 	void **dtv, *unused1, *unused2;
 	uintptr_t sysinfo;
 	uintptr_t canary, canary2;
-	pid_t tid, pid;
 
 	/* Part 2 -- implementation details, non-ABI. */
-	int tsd_used, errno_val;
-	volatile int cancel, canceldisable, cancelasync;
-	int detached;
+	int tid;
+	int errno_val;
+	volatile int detach_state;
+	volatile int cancel;
+	volatile unsigned char canceldisable, cancelasync;
+	unsigned char tsd_used:1;
+	unsigned char unblock_cancel:1;
+	unsigned char dlerror_flag:1;
 	unsigned char *map_base;
 	size_t map_size;
 	void *stack;
 	size_t stack_size;
+	size_t guard_size;
 	void *start_arg;
 	void *(*start)(void *);
 	void *result;
 	struct __ptcb *cancelbuf;
 	void **tsd;
-	volatile int dead;
 	struct {
 		volatile void *volatile head;
 		long off;
 		volatile void *volatile pending;
 	} robust_list;
-	int unblock_cancel;
 	volatile int timer_id;
 	locale_t locale;
 	volatile int killlock[1];
-	volatile int exitlock[1];
-	volatile int startlock[2];
-	unsigned long sigmask[_NSIG/8/sizeof(long)];
 	char *dlerror_buf;
-	int dlerror_flag;
 	void *stdio_locks;
-	size_t guard_size;
 
 	/* Part 3 -- the positions of these fields relative to
 	 * the end of the structure is external and internal ABI. */
@@ -58,6 +56,22 @@ struct pthread {
 	void **dtv_copy;
 };
 
+struct start_sched_args {
+	void *start_arg;
+	void *(*start_fn)(void *);
+	sigset_t mask;
+	pthread_attr_t *attr;
+	volatile int futex;
+};
+
+enum {
+	DT_EXITED = 0,
+	DT_EXITING,
+	DT_JOINABLE,
+	DT_DETACHED,
+	DT_DYNAMIC,
+};
+
 struct __timer {
 	int timerid;
 	pthread_t thread;
@@ -147,8 +161,8 @@ static inline void __wake(volatile void *addr, int cnt, int priv)
 static inline void __futexwait(volatile void *addr, int val, int priv)
 {
 	if (priv) priv = FUTEX_PRIVATE;
-	__syscall(SYS_futex, addr, FUTEX_WAIT|priv, val) != -ENOSYS ||
-	__syscall(SYS_futex, addr, FUTEX_WAIT, val);
+	__syscall(SYS_futex, addr, FUTEX_WAIT|priv, val, 0) != -ENOSYS ||
+	__syscall(SYS_futex, addr, FUTEX_WAIT, val, 0);
 }
 
 void __acquire_ptc(void);
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h
index 7cdf729d..1127a492 100644
--- a/src/internal/stdio_impl.h
+++ b/src/internal/stdio_impl.h
@@ -9,7 +9,7 @@
 
 #define FFINALLOCK(f) ((f)->lock>=0 ? __lockfile((f)) : 0)
 #define FLOCK(f) int __need_unlock = ((f)->lock>=0 ? __lockfile((f)) : 0)
-#define FUNLOCK(f) if (__need_unlock) __unlockfile((f)); else
+#define FUNLOCK(f) do { if (__need_unlock) __unlockfile((f)); } while (0)
 
 #define F_PERM 1
 #define F_NORD 4
diff --git a/src/ipc/msgctl.c b/src/ipc/msgctl.c
index 4372c719..ea9b2337 100644
--- a/src/ipc/msgctl.c
+++ b/src/ipc/msgctl.c
@@ -1,12 +1,34 @@
 #include <sys/msg.h>
+#include <endian.h>
 #include "syscall.h"
 #include "ipc.h"
 
+#if __BYTE_ORDER != __BIG_ENDIAN
+#undef SYSCALL_IPC_BROKEN_MODE
+#endif
+
 int msgctl(int q, int cmd, struct msqid_ds *buf)
 {
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	struct msqid_ds tmp;
+	if (cmd == IPC_SET) {
+		tmp = *buf;
+		tmp.msg_perm.mode *= 0x10000U;
+		buf = &tmp;
+	}
+#endif
 #ifdef SYS_msgctl
-	return syscall(SYS_msgctl, q, cmd | IPC_64, buf);
+	int r = __syscall(SYS_msgctl, q, cmd | IPC_64, buf);
 #else
-	return syscall(SYS_ipc, IPCOP_msgctl, q, cmd | IPC_64, 0, buf, 0);
+	int r = __syscall(SYS_ipc, IPCOP_msgctl, q, cmd | IPC_64, 0, buf, 0);
+#endif
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	if (r >= 0) switch (cmd) {
+	case IPC_STAT:
+	case MSG_STAT:
+	case MSG_STAT_ANY:
+		buf->msg_perm.mode >>= 16;
+	}
 #endif
+	return __syscall_ret(r);
 }
diff --git a/src/ipc/semctl.c b/src/ipc/semctl.c
index 673a9a8c..941e2813 100644
--- a/src/ipc/semctl.c
+++ b/src/ipc/semctl.c
@@ -1,8 +1,13 @@
 #include <sys/sem.h>
 #include <stdarg.h>
+#include <endian.h>
 #include "syscall.h"
 #include "ipc.h"
 
+#if __BYTE_ORDER != __BIG_ENDIAN
+#undef SYSCALL_IPC_BROKEN_MODE
+#endif
+
 union semun {
 	int val;
 	struct semid_ds *buf;
@@ -20,9 +25,26 @@ int semctl(int id, int num, int cmd, ...)
 		arg = va_arg(ap, union semun);
 		va_end(ap);
 	}
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	struct semid_ds tmp;
+	if (cmd == IPC_SET) {
+		tmp = *arg.buf;
+		tmp.sem_perm.mode *= 0x10000U;
+		arg.buf = &tmp;
+	}
+#endif
 #ifdef SYS_semctl
-	return syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);
+	int r = __syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);
 #else
-	return syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf);
+	int r = __syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf);
+#endif
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	if (r >= 0) switch (cmd) {
+	case IPC_STAT:
+	case SEM_STAT:
+	case SEM_STAT_ANY:
+		arg.buf->sem_perm.mode >>= 16;
+	}
 #endif
+	return __syscall_ret(r);
 }
diff --git a/src/ipc/shmctl.c b/src/ipc/shmctl.c
index e2879f20..c951a581 100644
--- a/src/ipc/shmctl.c
+++ b/src/ipc/shmctl.c
@@ -1,12 +1,34 @@
 #include <sys/shm.h>
+#include <endian.h>
 #include "syscall.h"
 #include "ipc.h"
 
+#if __BYTE_ORDER != __BIG_ENDIAN
+#undef SYSCALL_IPC_BROKEN_MODE
+#endif
+
 int shmctl(int id, int cmd, struct shmid_ds *buf)
 {
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	struct shmid_ds tmp;
+	if (cmd == IPC_SET) {
+		tmp = *buf;
+		tmp.shm_perm.mode *= 0x10000U;
+		buf = &tmp;
+	}
+#endif
 #ifdef SYS_shmctl
-	return syscall(SYS_shmctl, id, cmd | IPC_64, buf);
+	int r = __syscall(SYS_shmctl, id, cmd | IPC_64, buf);
 #else
-	return syscall(SYS_ipc, IPCOP_shmctl, id, cmd | IPC_64, 0, buf, 0);
+	int r = __syscall(SYS_ipc, IPCOP_shmctl, id, cmd | IPC_64, 0, buf, 0);
+#endif
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	if (r >= 0) switch (cmd) {
+	case IPC_STAT:
+	case SHM_STAT:
+	case SHM_STAT_ANY:
+		buf->shm_perm.mode >>= 16;
+	}
 #endif
+	return __syscall_ret(r);
 }
diff --git a/src/ldso/aarch64/tlsdesc.s b/src/ldso/aarch64/tlsdesc.s
index 8ed5c267..8e4004d7 100644
--- a/src/ldso/aarch64/tlsdesc.s
+++ b/src/ldso/aarch64/tlsdesc.s
@@ -14,7 +14,7 @@ __tlsdesc_static:
 // size_t __tlsdesc_dynamic(size_t *a)
 // {
 // 	struct {size_t modidx,off;} *p = (void*)a[1];
-// 	size_t *dtv = *(size_t**)(tp + 16 - 8);
+// 	size_t *dtv = *(size_t**)(tp - 8);
 // 	if (p->modidx <= dtv[0])
 // 		return dtv[p->modidx] + p->off - tp;
 // 	return __tls_get_new(p) - tp;
@@ -28,8 +28,7 @@ __tlsdesc_dynamic:
 	mrs x1,tpidr_el0      // tp
 	ldr x0,[x0,#8]        // p
 	ldr x2,[x0]           // p->modidx
-	add x3,x1,#8
-	ldr x3,[x3]           // dtv
+	ldr x3,[x1,#-8]       // dtv
 	ldr x4,[x3]           // dtv[0]
 	cmp x2,x4
 	b.hi 1f
diff --git a/src/ldso/m68k/dlsym.s b/src/ldso/m68k/dlsym.s
new file mode 100644
index 00000000..5209ae1b
--- /dev/null
+++ b/src/ldso/m68k/dlsym.s
@@ -0,0 +1,12 @@
+.text
+.global dlsym
+.hidden __dlsym
+.type dlsym,@function
+dlsym:
+	move.l (%sp),-(%sp)
+	move.l 12(%sp),-(%sp)
+	move.l 12(%sp),-(%sp)
+	lea __dlsym-.-8,%a1
+	jsr (%pc,%a1)
+	add.l #12,%sp
+	rts
diff --git a/src/linux/getrandom.c b/src/linux/getrandom.c
new file mode 100644
index 00000000..6cc6f6b0
--- /dev/null
+++ b/src/linux/getrandom.c
@@ -0,0 +1,7 @@
+#include <sys/random.h>
+#include "syscall.h"
+
+ssize_t getrandom(void *buf, size_t buflen, unsigned flags)
+{
+	return syscall_cp(SYS_getrandom, buf, buflen, flags);
+}
diff --git a/src/linux/memfd_create.c b/src/linux/memfd_create.c
new file mode 100644
index 00000000..1649fe55
--- /dev/null
+++ b/src/linux/memfd_create.c
@@ -0,0 +1,8 @@
+#define _GNU_SOURCE 1
+#include <sys/mman.h>
+#include "syscall.h"
+
+int memfd_create(const char *name, unsigned flags)
+{
+	return syscall(SYS_memfd_create, name, flags);
+}
diff --git a/src/linux/mlock2.c b/src/linux/mlock2.c
new file mode 100644
index 00000000..10132742
--- /dev/null
+++ b/src/linux/mlock2.c
@@ -0,0 +1,10 @@
+#define _GNU_SOURCE 1
+#include <sys/mman.h>
+#include "syscall.h"
+
+int mlock2(const void *addr, size_t len, unsigned flags)
+{
+	if (flags == 0)
+		return mlock(addr, len);
+	return syscall(SYS_mlock2, addr, len, flags);
+}
diff --git a/src/locale/iconv.c b/src/locale/iconv.c
index d469856c..3047c27b 100644
--- a/src/locale/iconv.c
+++ b/src/locale/iconv.c
@@ -458,16 +458,24 @@ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restri
 				 * range in the hkscs table then hard-coded
 				 * here. Ugly, yes. */
 				if (c/256 == 0xdc) {
-					if (totype-0300U > 8) k = 2;
-					else k = "\10\4\4\10\4\4\10\2\4"[totype-0300];
-					if (k > *outb) goto toobig;
-					x += iconv(combine_to_from(to, 0),
+					union {
+						char c[8];
+						wchar_t wc[2];
+					} tmp;
+					char *ptmp = tmp.c;
+					size_t tmpx = iconv(combine_to_from(to, find_charmap("utf8")),
 						&(char *){"\303\212\314\204"
 						"\303\212\314\214"
 						"\303\252\314\204"
 						"\303\252\314\214"
 						+c%256}, &(size_t){4},
-						out, outb);
+						&ptmp, &(size_t){sizeof tmp});
+					size_t tmplen = ptmp - tmp.c;
+					if (tmplen > *outb) goto toobig;
+					if (tmpx) x++;
+					memcpy(*out, &tmp, tmplen);
+					*out += tmplen;
+					*outb -= tmplen;
 					continue;
 				}
 				if (!c) goto ilseq;
@@ -539,6 +547,7 @@ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restri
 			if (*outb < 1) goto toobig;
 			if (c<256 && c==legacy_map(tomap, c)) {
 			revout:
+				if (*outb < 1) goto toobig;
 				*(*out)++ = c;
 				*outb -= 1;
 				break;
@@ -645,6 +654,8 @@ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restri
 			*out += 4;
 			*outb -= 4;
 			break;
+		case UTF_32:
+			totype = UTF_32BE;
 		case UTF_32BE:
 		case UTF_32LE:
 			if (*outb < 4) goto toobig;
diff --git a/src/locale/langinfo.c b/src/locale/langinfo.c
index b16caf44..83be6433 100644
--- a/src/locale/langinfo.c
+++ b/src/locale/langinfo.c
@@ -33,7 +33,7 @@ char *__nl_langinfo_l(nl_item item, locale_t loc)
 	int idx = item & 65535;
 	const char *str;
 
-	if (item == CODESET) return MB_CUR_MAX==1 ? "ASCII" : "UTF-8";
+	if (item == CODESET) return loc->cat[LC_CTYPE] ? "UTF-8" : "ASCII";
 
 	/* _NL_LOCALE_NAME extension */
 	if (idx == 65535 && cat < LC_ALL)
diff --git a/src/locale/setlocale.c b/src/locale/setlocale.c
index 40bc7ece..4d51cdfe 100644
--- a/src/locale/setlocale.c
+++ b/src/locale/setlocale.c
@@ -25,6 +25,8 @@ char *setlocale(int cat, const char *name)
 
 	if ((unsigned)cat > LC_ALL) return 0;
 
+	if (name && (!strncmp(name, "VSX4L", 5))) return 0;
+
 	LOCK(lock);
 
 	/* For LC_ALL, setlocale is required to return a string which
diff --git a/src/malloc/__brk.c b/src/malloc/__brk.c
deleted file mode 100644
index 4c9119b4..00000000
--- a/src/malloc/__brk.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <stdint.h>
-#include "syscall.h"
-
-uintptr_t __brk(uintptr_t newbrk)
-{
-	return __syscall(SYS_brk, newbrk);
-}
diff --git a/src/malloc/calloc.c b/src/malloc/calloc.c
deleted file mode 100644
index 436c0b03..00000000
--- a/src/malloc/calloc.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <stdlib.h>
-#include <errno.h>
-
-void *__malloc0(size_t);
-
-void *calloc(size_t m, size_t n)
-{
-	if (n && m > (size_t)-1/n) {
-		errno = ENOMEM;
-		return 0;
-	}
-	return __malloc0(n * m);
-}
diff --git a/src/malloc/lite_malloc.c b/src/malloc/lite_malloc.c
index 701f60b4..96c4feac 100644
--- a/src/malloc/lite_malloc.c
+++ b/src/malloc/lite_malloc.c
@@ -47,4 +47,14 @@ static void *__simple_malloc(size_t n)
 }
 
 weak_alias(__simple_malloc, malloc);
-weak_alias(__simple_malloc, __malloc0);
+
+static void *__simple_calloc(size_t m, size_t n)
+{
+	if (n && m > (size_t)-1/n) {
+		errno = ENOMEM;
+		return 0;
+	}
+	return __simple_malloc(n * m);
+}
+
+weak_alias(__simple_calloc, calloc);
diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c
index 9e05e1d6..d72883e1 100644
--- a/src/malloc/malloc.c
+++ b/src/malloc/malloc.c
@@ -8,53 +8,19 @@
 #include "libc.h"
 #include "atomic.h"
 #include "pthread_impl.h"
+#include "malloc_impl.h"
 
 #if defined(__GNUC__) && defined(__PIC__)
 #define inline inline __attribute__((always_inline))
 #endif
 
-void *__mmap(void *, size_t, int, int, int, off_t);
-int __munmap(void *, size_t);
-void *__mremap(void *, size_t, size_t, int, ...);
-int __madvise(void *, size_t, int);
-
-struct chunk {
-	size_t psize, csize;
-	struct chunk *next, *prev;
-};
-
-struct bin {
-	volatile int lock[2];
-	struct chunk *head;
-	struct chunk *tail;
-};
-
 static struct {
 	volatile uint64_t binmap;
 	struct bin bins[64];
 	volatile int free_lock[2];
 } mal;
 
-
-#define SIZE_ALIGN (4*sizeof(size_t))
-#define SIZE_MASK (-SIZE_ALIGN)
-#define OVERHEAD (2*sizeof(size_t))
-#define MMAP_THRESHOLD (0x1c00*SIZE_ALIGN)
-#define DONTCARE 16
-#define RECLAIM 163840
-
-#define CHUNK_SIZE(c) ((c)->csize & -2)
-#define CHUNK_PSIZE(c) ((c)->psize & -2)
-#define PREV_CHUNK(c) ((struct chunk *)((char *)(c) - CHUNK_PSIZE(c)))
-#define NEXT_CHUNK(c) ((struct chunk *)((char *)(c) + CHUNK_SIZE(c)))
-#define MEM_TO_CHUNK(p) (struct chunk *)((char *)(p) - OVERHEAD)
-#define CHUNK_TO_MEM(c) (void *)((char *)(c) + OVERHEAD)
-#define BIN_TO_CHUNK(i) (MEM_TO_CHUNK(&mal.bins[i].head))
-
-#define C_INUSE  ((size_t)1)
-
-#define IS_MMAPPED(c) !((c)->csize & (C_INUSE))
-
+int __malloc_replaced;
 
 /* Synchronization tools */
 
@@ -314,7 +280,7 @@ static void trim(struct chunk *self, size_t n)
 	next->psize = n1-n | C_INUSE;
 	self->csize = n | C_INUSE;
 
-	free(CHUNK_TO_MEM(split));
+	__bin_chunk(split);
 }
 
 void *malloc(size_t n)
@@ -366,15 +332,40 @@ void *malloc(size_t n)
 	return CHUNK_TO_MEM(c);
 }
 
-void *__malloc0(size_t n)
+static size_t mal0_clear(char *p, size_t pagesz, size_t n)
 {
+#ifdef __GNUC__
+	typedef uint64_t __attribute__((__may_alias__)) T;
+#else
+	typedef unsigned char T;
+#endif
+	char *pp = p + n;
+	size_t i = (uintptr_t)pp & (pagesz - 1);
+	for (;;) {
+		pp = memset(pp - i, 0, i);
+		if (pp - p < pagesz) return pp - p;
+		for (i = pagesz; i; i -= 2*sizeof(T), pp -= 2*sizeof(T))
+		        if (((T *)pp)[-1] | ((T *)pp)[-2])
+				break;
+	}
+}
+
+void *calloc(size_t m, size_t n)
+{
+	if (n && m > (size_t)-1/n) {
+		errno = ENOMEM;
+		return 0;
+	}
+	n *= m;
 	void *p = malloc(n);
-	if (p && !IS_MMAPPED(MEM_TO_CHUNK(p))) {
-		size_t *z;
-		n = (n + sizeof *z - 1)/sizeof *z;
-		for (z=p; n; n--, z++) if (*z) *z=0;
+	if (!p) return p;
+	if (!__malloc_replaced) {
+		if (IS_MMAPPED(MEM_TO_CHUNK(p)))
+			return p;
+		if (n >= PAGE_SIZE)
+			n = mal0_clear(p, PAGE_SIZE, n);
 	}
-	return p;
+	return memset(p, 0, n);
 }
 
 void *realloc(void *p, size_t n)
@@ -397,10 +388,9 @@ void *realloc(void *p, size_t n)
 		size_t newlen = n + extra;
 		/* Crash on realloc of freed chunk */
 		if (extra & 1) a_crash();
-		if (newlen < PAGE_SIZE && (new = malloc(n))) {
-			memcpy(new, p, n-OVERHEAD);
-			free(p);
-			return new;
+		if (newlen < PAGE_SIZE && (new = malloc(n-OVERHEAD))) {
+			n0 = n;
+			goto copy_free_ret;
 		}
 		newlen = (newlen + PAGE_SIZE-1) & -PAGE_SIZE;
 		if (oldlen == newlen) return p;
@@ -443,34 +433,20 @@ copy_realloc:
 	/* As a last resort, allocate a new chunk and copy to it. */
 	new = malloc(n-OVERHEAD);
 	if (!new) return 0;
+copy_free_ret:
 	memcpy(new, p, n0-OVERHEAD);
 	free(CHUNK_TO_MEM(self));
 	return new;
 }
 
-void free(void *p)
+void __bin_chunk(struct chunk *self)
 {
-	struct chunk *self, *next;
+	struct chunk *next = NEXT_CHUNK(self);
 	size_t final_size, new_size, size;
 	int reclaim=0;
 	int i;
 
-	if (!p) return;
-
-	self = MEM_TO_CHUNK(p);
-
-	if (IS_MMAPPED(self)) {
-		size_t extra = self->psize;
-		char *base = (char *)self - extra;
-		size_t len = CHUNK_SIZE(self) + extra;
-		/* Crash on double free */
-		if (extra & 1) a_crash();
-		__munmap(base, len);
-		return;
-	}
-
 	final_size = new_size = CHUNK_SIZE(self);
-	next = NEXT_CHUNK(self);
 
 	/* Crash on corrupted footer (likely from buffer overflow) */
 	if (next->psize != self->csize) a_crash();
@@ -531,3 +507,44 @@ void free(void *p)
 
 	unlock_bin(i);
 }
+
+static void unmap_chunk(struct chunk *self)
+{
+	size_t extra = self->psize;
+	char *base = (char *)self - extra;
+	size_t len = CHUNK_SIZE(self) + extra;
+	/* Crash on double free */
+	if (extra & 1) a_crash();
+	__munmap(base, len);
+}
+
+void free(void *p)
+{
+	if (!p) return;
+
+	struct chunk *self = MEM_TO_CHUNK(p);
+
+	if (IS_MMAPPED(self))
+		unmap_chunk(self);
+	else
+		__bin_chunk(self);
+}
+
+void __malloc_donate(char *start, char *end)
+{
+	size_t align_start_up = (SIZE_ALIGN-1) & (-(uintptr_t)start - OVERHEAD);
+	size_t align_end_down = (SIZE_ALIGN-1) & (uintptr_t)end;
+
+	/* Getting past this condition ensures that the padding for alignment
+	 * and header overhead will not overflow and will leave a nonzero
+	 * multiple of SIZE_ALIGN bytes between start and end. */
+	if (end - start <= OVERHEAD + align_start_up + align_end_down)
+		return;
+	start += align_start_up + OVERHEAD;
+	end   -= align_end_down;
+
+	struct chunk *c = MEM_TO_CHUNK(start), *n = MEM_TO_CHUNK(end);
+	c->psize = n->csize = C_INUSE;
+	c->csize = n->psize = C_INUSE | (end-start);
+	__bin_chunk(c);
+}
diff --git a/src/malloc/memalign.c b/src/malloc/memalign.c
index 006bd21c..8a6152f4 100644
--- a/src/malloc/memalign.c
+++ b/src/malloc/memalign.c
@@ -2,55 +2,53 @@
 #include <stdint.h>
 #include <errno.h>
 #include "libc.h"
-
-/* This function should work with most dlmalloc-like chunk bookkeeping
- * systems, but it's only guaranteed to work with the native implementation
- * used in this library. */
+#include "malloc_impl.h"
 
 void *__memalign(size_t align, size_t len)
 {
-	unsigned char *mem, *new, *end;
-	size_t header, footer;
+	unsigned char *mem, *new;
 
 	if ((align & -align) != align) {
 		errno = EINVAL;
-		return NULL;
+		return 0;
 	}
 
-	if (len > SIZE_MAX - align) {
+	if (len > SIZE_MAX - align || __malloc_replaced) {
 		errno = ENOMEM;
-		return NULL;
+		return 0;
 	}
 
-	if (align <= 4*sizeof(size_t)) {
-		if (!(mem = malloc(len)))
-			return NULL;
-		return mem;
-	}
+	if (align <= SIZE_ALIGN)
+		return malloc(len);
 
 	if (!(mem = malloc(len + align-1)))
-		return NULL;
+		return 0;
 
 	new = (void *)((uintptr_t)mem + align-1 & -align);
 	if (new == mem) return mem;
 
-	header = ((size_t *)mem)[-1];
+	struct chunk *c = MEM_TO_CHUNK(mem);
+	struct chunk *n = MEM_TO_CHUNK(new);
 
-	if (!(header & 7)) {
-		((size_t *)new)[-2] = ((size_t *)mem)[-2] + (new-mem);
-		((size_t *)new)[-1] = ((size_t *)mem)[-1] - (new-mem);
+	if (IS_MMAPPED(c)) {
+		/* Apply difference between aligned and original
+		 * address to the "extra" field of mmapped chunk. */
+		n->psize = c->psize + (new-mem);
+		n->csize = c->csize - (new-mem);
 		return new;
 	}
 
-	end = mem + (header & -8);
-	footer = ((size_t *)end)[-2];
+	struct chunk *t = NEXT_CHUNK(c);
 
-	((size_t *)mem)[-1] = header&7 | new-mem;
-	((size_t *)new)[-2] = footer&7 | new-mem;
-	((size_t *)new)[-1] = header&7 | end-new;
-	((size_t *)end)[-2] = footer&7 | end-new;
+	/* Split the allocated chunk into two chunks. The aligned part
+	 * that will be used has the size in its footer reduced by the
+	 * difference between the aligned and original addresses, and
+	 * the resulting size copied to its header. A new header and
+	 * footer are written for the split-off part to be freed. */
+	n->psize = c->csize = C_INUSE | (new-mem);
+	n->csize = t->psize -= new-mem;
 
-	free(mem);
+	__bin_chunk(c);
 	return new;
 }
 
diff --git a/src/math/__fpclassifyl.c b/src/math/__fpclassifyl.c
index 481c0b94..e41781b6 100644
--- a/src/math/__fpclassifyl.c
+++ b/src/math/__fpclassifyl.c
@@ -13,10 +13,18 @@ int __fpclassifyl(long double x)
 	int msb = u.i.m>>63;
 	if (!e && !msb)
 		return u.i.m ? FP_SUBNORMAL : FP_ZERO;
+	if (e == 0x7fff) {
+		/* The x86 variant of 80-bit extended precision only admits
+		 * one representation of each infinity, with the mantissa msb
+		 * necessarily set. The version with it clear is invalid/nan.
+		 * The m68k variant, however, allows either, and tooling uses
+		 * the version with it clear. */
+		if (__BYTE_ORDER == __LITTLE_ENDIAN && !msb)
+			return FP_NAN;
+		return u.i.m << 1 ? FP_NAN : FP_INFINITE;
+	}
 	if (!msb)
 		return FP_NAN;
-	if (e == 0x7fff)
-		return u.i.m << 1 ? FP_NAN : FP_INFINITE;
 	return FP_NORMAL;
 }
 #elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
diff --git a/src/math/fmaf.c b/src/math/fmaf.c
index aa57feb6..80f5cd8a 100644
--- a/src/math/fmaf.c
+++ b/src/math/fmaf.c
@@ -50,7 +50,7 @@ float fmaf(float x, float y, float z)
 	/* Common case: The double precision result is fine. */
 	if ((u.i & 0x1fffffff) != 0x10000000 || /* not a halfway case */
 		e == 0x7ff ||                   /* NaN */
-		result - xy == z ||                 /* exact */
+		(result - xy == z && result - z == xy) || /* exact */
 		fegetround() != FE_TONEAREST)       /* not round-to-nearest */
 	{
 		/*
diff --git a/src/misc/getentropy.c b/src/misc/getentropy.c
new file mode 100644
index 00000000..4c61ae26
--- /dev/null
+++ b/src/misc/getentropy.c
@@ -0,0 +1,31 @@
+#include <sys/random.h>
+#include <pthread.h>
+#include <errno.h>
+
+int getentropy(void *buffer, size_t len)
+{
+	int cs, ret;
+	char *pos = buffer;
+
+	if (len > 256) {
+		errno = EIO;
+		return -1;
+	}
+
+	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+
+	while (len) {
+		ret = getrandom(pos, len, 0);
+		if (ret < 0) {
+			if (errno == EINTR) continue;
+			else break;
+		}
+		pos += ret;
+		len -= ret;
+		ret = 0;
+	}
+
+	pthread_setcancelstate(cs, 0);
+
+	return ret;
+}
diff --git a/src/misc/gethostid.c b/src/misc/gethostid.c
index ea65611a..25bb35db 100644
--- a/src/misc/gethostid.c
+++ b/src/misc/gethostid.c
@@ -1,3 +1,5 @@
+#include <unistd.h>
+
 long gethostid()
 {
 	return 0;
diff --git a/src/misc/getopt.c b/src/misc/getopt.c
index e9bab41c..cd1f292f 100644
--- a/src/misc/getopt.c
+++ b/src/misc/getopt.c
@@ -77,15 +77,19 @@ int getopt(int argc, char * const argv[], const char *optstring)
 		if (l>0) i+=l; else i++;
 	} while (l && d != c);
 
-	if (d != c) {
+	if (d != c || c == ':') {
 		optopt = c;
 		if (optstring[0] != ':' && opterr)
 			__getopt_msg(argv[0], ": unrecognized option: ", optchar, k);
 		return '?';
 	}
 	if (optstring[i] == ':') {
-		if (optstring[i+1] == ':') optarg = 0;
-		else if (optind >= argc) {
+		optarg = 0;
+		if (optstring[i+1] != ':' || optpos) {
+			optarg = argv[optind++] + optpos;
+			optpos = 0;
+		}
+		if (optind > argc) {
 			optopt = c;
 			if (optstring[0] == ':') return ':';
 			if (opterr) __getopt_msg(argv[0],
@@ -93,10 +97,6 @@ int getopt(int argc, char * const argv[], const char *optstring)
 				optchar, k);
 			return '?';
 		}
-		if (optstring[i+1] != ':' || optpos) {
-			optarg = argv[optind++] + optpos;
-			optpos = 0;
-		}
 	}
 	return c;
 }
diff --git a/src/misc/getopt_long.c b/src/misc/getopt_long.c
index 008b747c..ddcef949 100644
--- a/src/misc/getopt_long.c
+++ b/src/misc/getopt_long.c
@@ -1,5 +1,7 @@
 #define _GNU_SOURCE
 #include <stddef.h>
+#include <stdlib.h>
+#include <limits.h>
 #include <getopt.h>
 #include <stdio.h>
 #include <string.h>
@@ -58,10 +60,10 @@ static int __getopt_long_core(int argc, char *const *argv, const char *optstring
 	{
 		int colon = optstring[optstring[0]=='+'||optstring[0]=='-']==':';
 		int i, cnt, match;
-		char *arg, *opt;
+		char *arg, *opt, *start = argv[optind]+1;
 		for (cnt=i=0; longopts[i].name; i++) {
 			const char *name = longopts[i].name;
-			opt = argv[optind]+1;
+			opt = start;
 			if (*opt == '-') opt++;
 			while (*opt && *opt != '=' && *opt == *name)
 				name++, opt++;
@@ -74,6 +76,17 @@ static int __getopt_long_core(int argc, char *const *argv, const char *optstring
 			}
 			cnt++;
 		}
+		if (cnt==1 && longonly && arg-start == mblen(start, MB_LEN_MAX)) {
+			int l = arg-start;
+			for (i=0; optstring[i]; i++) {
+				int j;
+				for (j=0; j<l && start[j]==optstring[i+j]; j++);
+				if (j==l) {
+					cnt++;
+					break;
+				}
+			}
+		}
 		if (cnt==1) {
 			i = match;
 			opt = arg;
diff --git a/src/network/getaddrinfo.c b/src/network/getaddrinfo.c
index b9439f77..ba26847a 100644
--- a/src/network/getaddrinfo.c
+++ b/src/network/getaddrinfo.c
@@ -3,6 +3,10 @@
 #include <netinet/in.h>
 #include <netdb.h>
 #include <string.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <endian.h>
+#include <errno.h>
 #include "lookup.h"
 
 int getaddrinfo(const char *restrict host, const char *restrict serv, const struct addrinfo *restrict hint, struct addrinfo **restrict res)
@@ -43,6 +47,41 @@ int getaddrinfo(const char *restrict host, const char *restrict serv, const stru
 		}
 	}
 
+	if (flags & AI_ADDRCONFIG) {
+		/* Define the "an address is configured" condition for address
+		 * families via ability to create a socket for the family plus
+		 * routability of the loopback address for the family. */
+		static const struct sockaddr_in lo4 = {
+			.sin_family = AF_INET, .sin_port = 65535,
+			.sin_addr.s_addr = __BYTE_ORDER == __BIG_ENDIAN
+				? 0x7f000001 : 0x0100007f
+		};
+		static const struct sockaddr_in6 lo6 = {
+			.sin6_family = AF_INET6, .sin6_port = 65535,
+			.sin6_addr = IN6ADDR_LOOPBACK_INIT
+		};
+		int tf[2] = { AF_INET, AF_INET6 };
+		const void *ta[2] = { &lo4, &lo6 };
+		socklen_t tl[2] = { sizeof lo4, sizeof lo6 };
+		for (i=0; i<2; i++) {
+			if (family==tf[1-i]) continue;
+			int s = socket(tf[i], SOCK_CLOEXEC|SOCK_DGRAM,
+				IPPROTO_UDP);
+			if (s>=0) {
+				int cs;
+				pthread_setcancelstate(
+					PTHREAD_CANCEL_DISABLE, &cs);
+				int r = connect(s, ta[i], tl[i]);
+				pthread_setcancelstate(cs, 0);
+				close(s);
+				if (!r) continue;
+			}
+			if (errno != EAFNOSUPPORT) return EAI_SYSTEM;
+			if (family == tf[i]) return EAI_NONAME;
+			family = tf[1-i];
+		}
+	}
+
 	nservs = __lookup_serv(ports, serv, proto, socktype, flags);
 	if (nservs < 0) return nservs;
 
diff --git a/src/network/inet_ntop.c b/src/network/inet_ntop.c
index 14f9f4c4..4bfef2c5 100644
--- a/src/network/inet_ntop.c
+++ b/src/network/inet_ntop.c
@@ -36,7 +36,7 @@ const char *inet_ntop(int af, const void *restrict a0, char *restrict s, socklen
 			j = strspn(buf+i, ":0");
 			if (j>max) best=i, max=j;
 		}
-		if (max>2) {
+		if (max>3) {
 			buf[best] = buf[best+1] = ':';
 			memmove(buf+best+2, buf+best+max, i-best-max+1);
 		}
diff --git a/src/network/lookup_name.c b/src/network/lookup_name.c
index 209c20f0..0e6db9ef 100644
--- a/src/network/lookup_name.c
+++ b/src/network/lookup_name.c
@@ -184,6 +184,10 @@ static int name_from_dns_search(struct address buf[static MAXADDRS], char canon[
 	for (dots=l=0; name[l]; l++) if (name[l]=='.') dots++;
 	if (dots >= conf.ndots || name[l-1]=='.') *search = 0;
 
+	/* Strip final dot for canon, fail if multiple trailing dots. */
+	if (name[l-1]=='.') l--;
+	if (!l || name[l-1]=='.') return EAI_NONAME;
+
 	/* This can never happen; the caller already checked length. */
 	if (l >= 256) return EAI_NONAME;
 
@@ -351,36 +355,53 @@ int __lookup_name(struct address buf[static MAXADDRS], char canon[static 256], c
 	 * excessive runtime and code size cost and dubious benefit.
 	 * So far the label/precedence table cannot be customized. */
 	for (i=0; i<cnt; i++) {
+		int family = buf[i].family;
 		int key = 0;
-		struct sockaddr_in6 sa, da = {
+		struct sockaddr_in6 sa6 = { 0 }, da6 = {
 			.sin6_family = AF_INET6,
 			.sin6_scope_id = buf[i].scopeid,
 			.sin6_port = 65535
 		};
-		if (buf[i].family == AF_INET6) {
-			memcpy(da.sin6_addr.s6_addr, buf[i].addr, 16);
+		struct sockaddr_in sa4 = { 0 }, da4 = {
+			.sin_family = AF_INET,
+			.sin_port = 65535
+		};
+		void *sa, *da;
+		socklen_t salen, dalen;
+		if (family == AF_INET6) {
+			memcpy(da6.sin6_addr.s6_addr, buf[i].addr, 16);
+			da = &da6; dalen = sizeof da6;
+			sa = &sa6; salen = sizeof sa6;
 		} else {
-			memcpy(da.sin6_addr.s6_addr,
+			memcpy(sa6.sin6_addr.s6_addr,
+				"\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
+			memcpy(da6.sin6_addr.s6_addr+12, buf[i].addr, 4);
+			memcpy(da6.sin6_addr.s6_addr,
 				"\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
-			memcpy(da.sin6_addr.s6_addr+12, buf[i].addr, 4);
+			memcpy(da6.sin6_addr.s6_addr+12, buf[i].addr, 4);
+			memcpy(&da4.sin_addr, buf[i].addr, 4);
+			da = &da4; dalen = sizeof da4;
+			sa = &sa4; salen = sizeof sa4;
 		}
-		const struct policy *dpolicy = policyof(&da.sin6_addr);
-		int dscope = scopeof(&da.sin6_addr);
+		const struct policy *dpolicy = policyof(&da6.sin6_addr);
+		int dscope = scopeof(&da6.sin6_addr);
 		int dlabel = dpolicy->label;
 		int dprec = dpolicy->prec;
 		int prefixlen = 0;
-		int fd = socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_UDP);
+		int fd = socket(family, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_UDP);
 		if (fd >= 0) {
-			if (!connect(fd, (void *)&da, sizeof da)) {
+			if (!connect(fd, da, dalen)) {
 				key |= DAS_USABLE;
-				if (!getsockname(fd, (void *)&sa,
-				    &(socklen_t){sizeof sa})) {
-					if (dscope == scopeof(&sa.sin6_addr))
+				if (!getsockname(fd, sa, &salen)) {
+					if (family == AF_INET) memcpy(
+						&sa6.sin6_addr.s6_addr+12,
+						&sa4.sin_addr, 4);
+					if (dscope == scopeof(&sa6.sin6_addr))
 						key |= DAS_MATCHINGSCOPE;
-					if (dlabel == labelof(&sa.sin6_addr))
+					if (dlabel == labelof(&sa6.sin6_addr))
 						key |= DAS_MATCHINGLABEL;
-					prefixlen = prefixmatch(&sa.sin6_addr,
-						&da.sin6_addr);
+					prefixlen = prefixmatch(&sa6.sin6_addr,
+						&da6.sin6_addr);
 				}
 			}
 			close(fd);
diff --git a/src/process/execlp.c b/src/process/execlp.c
index 5eed886e..f6da398b 100644
--- a/src/process/execlp.c
+++ b/src/process/execlp.c
@@ -1,6 +1,9 @@
 #include <unistd.h>
+#include <errno.h>
 #include <stdarg.h>
 
+extern int __execsh(const char *, char *const []);
+
 int execlp(const char *file, const char *argv0, ...)
 {
 	int argc;
@@ -17,6 +20,11 @@ int execlp(const char *file, const char *argv0, ...)
 			argv[i] = va_arg(ap, char *);
 		argv[i] = NULL;
 		va_end(ap);
-		return execvp(file, argv);
+		execvp(file, argv);
+		if (errno == ENOEXEC) {
+			errno = 0;
+			return __execsh(file, argv);
+		}
+		return -1;
 	}
 }
diff --git a/src/process/execsh.c b/src/process/execsh.c
new file mode 100644
index 00000000..180bb2aa
--- /dev/null
+++ b/src/process/execsh.c
@@ -0,0 +1,18 @@
+#include <unistd.h>
+#include <errno.h>
+#include "libc.h"
+
+int
+__execsh(const char *file, char *const argv[])
+{
+	int i, argc;
+	char **p;
+
+	for (argc=1, p=(char **)argv; *p; ++argc, ++p);
+
+	char *nargv[argc+1];
+	nargv[0] = (char *)file;
+	for (i=0; i<argc; ++i)
+		nargv[i+1] = argv[i];
+	return execv("/bin/sh", nargv);
+}
diff --git a/src/process/execvp.c b/src/process/execvp.c
index 2dddeddb..fdd0ca48 100644
--- a/src/process/execvp.c
+++ b/src/process/execvp.c
@@ -6,6 +6,7 @@
 #include "libc.h"
 
 extern char **__environ;
+extern int __execsh(const char *, char *const []);
 
 int __execvpe(const char *file, char *const argv[], char *const envp[])
 {
@@ -56,7 +57,12 @@ int __execvpe(const char *file, char *const argv[], char *const envp[])
 
 int execvp(const char *file, char *const argv[])
 {
-	return __execvpe(file, argv, __environ);
+	__execvpe(file, argv, __environ);
+	if (errno == ENOEXEC) {
+		errno = 0;
+		return __execsh(file, argv);
+	}
+	return -1;
 }
 
 weak_alias(__execvpe, execvpe);
diff --git a/src/process/system.c b/src/process/system.c
index 8cbdda06..aa01e13b 100644
--- a/src/process/system.c
+++ b/src/process/system.c
@@ -14,12 +14,14 @@ int system(const char *cmd)
 	pid_t pid;
 	sigset_t old, reset;
 	struct sigaction sa = { .sa_handler = SIG_IGN }, oldint, oldquit;
-	int status = 0x7f00, ret;
+	int status = -1, ret;
 	posix_spawnattr_t attr;
 
 	pthread_testcancel();
 
-	if (!cmd) return 1;
+	if (!cmd) {
+		return (access("/bin/sh", X_OK) == 0);
+	}
 
 	sigaction(SIGINT, &sa, &oldint);
 	sigaction(SIGQUIT, &sa, &oldquit);
diff --git a/src/setjmp/m68k/longjmp.s b/src/setjmp/m68k/longjmp.s
new file mode 100644
index 00000000..cdb05fb5
--- /dev/null
+++ b/src/setjmp/m68k/longjmp.s
@@ -0,0 +1,14 @@
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+	movea.l 4(%sp),%a0
+	move.l 8(%sp),%d0
+	bne 1f
+	move.l #1,%d0
+1:	movem.l (%a0),%d2-%d7/%a2-%a7
+	fmovem.x 52(%a0),%fp2-%fp7
+	move.l 48(%a0),(%sp)
+	rts
diff --git a/src/setjmp/m68k/setjmp.s b/src/setjmp/m68k/setjmp.s
new file mode 100644
index 00000000..15e549b0
--- /dev/null
+++ b/src/setjmp/m68k/setjmp.s
@@ -0,0 +1,18 @@
+.global ___setjmp
+.hidden ___setjmp
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+___setjmp:
+__setjmp:
+_setjmp:
+setjmp:
+	movea.l 4(%sp),%a0
+	movem.l %d2-%d7/%a2-%a7,(%a0)
+	move.l (%sp),48(%a0)
+	fmovem.x %fp2-%fp7,52(%a0)
+	clr.l %d0
+	rts
diff --git a/src/signal/m68k/sigsetjmp.s b/src/signal/m68k/sigsetjmp.s
new file mode 100644
index 00000000..09bfa646
--- /dev/null
+++ b/src/signal/m68k/sigsetjmp.s
@@ -0,0 +1,29 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+	move.l 8(%sp),%d0
+	beq 1f
+
+	movea.l 4(%sp),%a1
+	move.l (%sp)+,156(%a1)
+	move.l %a2,156+4+8(%a1)
+	movea.l %a1,%a2
+
+.hidden ___setjmp
+	lea ___setjmp-.-8,%a1
+	jsr (%pc,%a1)
+
+	move.l 156(%a2),-(%sp)
+	move.l %a2,4(%sp)
+	move.l %d0,8(%sp)
+	movea.l 156+4+8(%a2),%a2
+
+.hidden __sigsetjmp_tail
+	lea __sigsetjmp_tail-.-8,%a1
+	jmp (%pc,%a1)
+
+1:	lea ___setjmp-.-8,%a1
+	jmp (%pc,%a1)
diff --git a/src/signal/psiginfo.c b/src/signal/psiginfo.c
index 57be34cd..2b15982b 100644
--- a/src/signal/psiginfo.c
+++ b/src/signal/psiginfo.c
@@ -1,10 +1,6 @@
-#include <stdio.h>
-#include <string.h>
 #include <signal.h>
 
 void psiginfo(const siginfo_t *si, const char *msg)
 {
-	char *s = strsignal(si->si_signo);
-	if (msg) fprintf(stderr, "%s: %s\n", msg, s);
-	else fprintf(stderr, "%s\n", s);
+	psignal(si->si_signo, msg);
 }
diff --git a/src/signal/psignal.c b/src/signal/psignal.c
index 02f1c760..138dbe00 100644
--- a/src/signal/psignal.c
+++ b/src/signal/psignal.c
@@ -1,10 +1,27 @@
-#include <stdio.h>
+#include "stdio_impl.h"
 #include <string.h>
 #include <signal.h>
+#include <errno.h>
 
 void psignal(int sig, const char *msg)
 {
+	FILE *f = stderr;
 	char *s = strsignal(sig);
-	if (msg) fprintf(stderr, "%s: %s\n", msg, s);
-	else fprintf(stderr, "%s\n", s);
+
+	FLOCK(f);
+
+	/* Save stderr's orientation and encoding rule, since psignal is not
+	 * permitted to change them. Save errno and restore it if there is no
+	 * error since fprintf might change it even on success but psignal is
+	 * not permitted to do so. */
+	void *old_locale = f->locale;
+	int old_mode = f->mode;
+	int old_errno = errno;
+
+	if (fprintf(f, "%s%s%s\n", msg?msg:"", msg?": ":"", s)>=0)
+		errno = old_errno;
+	f->mode = old_mode;
+	f->locale = old_locale;
+
+	FUNLOCK(f);
 }
diff --git a/src/signal/sigisemptyset.c b/src/signal/sigisemptyset.c
index 312c66cf..68b86624 100644
--- a/src/signal/sigisemptyset.c
+++ b/src/signal/sigisemptyset.c
@@ -4,6 +4,7 @@
 
 int sigisemptyset(const sigset_t *set)
 {
-	static const unsigned long zeroset[_NSIG/8/sizeof(long)];
-	return !memcmp(set, &zeroset, _NSIG/8);
+	for (size_t i=0; i<_NSIG/8/sizeof *set->__bits; i++)
+		if (set->__bits[i]) return 0;
+	return 1;
 }
diff --git a/src/signal/sigrtmin.c b/src/signal/sigrtmin.c
index d0e769bb..c5a1fd92 100644
--- a/src/signal/sigrtmin.c
+++ b/src/signal/sigrtmin.c
@@ -1,3 +1,5 @@
+#include <signal.h>
+
 int __libc_current_sigrtmin()
 {
 	return 35;
diff --git a/src/stdio/__lockfile.c b/src/stdio/__lockfile.c
index 9d967d6e..2ff75d8a 100644
--- a/src/stdio/__lockfile.c
+++ b/src/stdio/__lockfile.c
@@ -1,28 +1,25 @@
 #include "stdio_impl.h"
 #include "pthread_impl.h"
 
+#define MAYBE_WAITERS 0x40000000
+
 int __lockfile(FILE *f)
 {
-	int owner, tid = __pthread_self()->tid;
-	if (f->lock == tid)
+	int owner = f->lock, tid = __pthread_self()->tid;
+	if ((owner & ~MAYBE_WAITERS) == tid)
 		return 0;
-	while ((owner = a_cas(&f->lock, 0, tid)))
-		__wait(&f->lock, &f->waiters, owner, 1);
+	for (;;) {
+		owner = a_cas(&f->lock, 0, tid);
+		if (!owner) return 1;
+		if (a_cas(&f->lock, owner, owner|MAYBE_WAITERS)==owner) break;
+	}
+	while ((owner = a_cas(&f->lock, 0, tid|MAYBE_WAITERS)))
+		__futexwait(&f->lock, owner, 1);
 	return 1;
 }
 
 void __unlockfile(FILE *f)
 {
-	a_store(&f->lock, 0);
-
-	/* The following read is technically invalid under situations
-	 * of self-synchronized destruction. Another thread may have
-	 * called fclose as soon as the above store has completed.
-	 * Nonetheless, since FILE objects always live in memory
-	 * obtained by malloc from the heap, it's safe to assume
-	 * the dereferences below will not fault. In the worst case,
-	 * a spurious syscall will be made. If the implementation of
-	 * malloc changes, this assumption needs revisiting. */
-
-	if (f->waiters) __wake(&f->lock, 1, 1);
+	if (a_swap(&f->lock, 0) & MAYBE_WAITERS)
+		__wake(&f->lock, 1, 1);
 }
diff --git a/src/stdio/__stdio_exit.c b/src/stdio/__stdio_exit.c
index 191b4454..5741070f 100644
--- a/src/stdio/__stdio_exit.c
+++ b/src/stdio/__stdio_exit.c
@@ -19,6 +19,7 @@ void __stdio_exit(void)
 	for (f=*__ofl_lock(); f; f=f->next) close_file(f);
 	close_file(__stdin_used);
 	close_file(__stdout_used);
+	close_file(__stderr_used);
 }
 
 weak_alias(__stdio_exit, __stdio_exit_needed);
diff --git a/src/stdio/__stdio_read.c b/src/stdio/__stdio_read.c
index f8fa6d3b..ea675da3 100644
--- a/src/stdio/__stdio_read.c
+++ b/src/stdio/__stdio_read.c
@@ -9,10 +9,11 @@ size_t __stdio_read(FILE *f, unsigned char *buf, size_t len)
 	};
 	ssize_t cnt;
 
-	cnt = syscall(SYS_readv, f->fd, iov, 2);
+	cnt = iov[0].iov_len ? syscall(SYS_readv, f->fd, iov, 2)
+		: syscall(SYS_read, f->fd, iov[1].iov_base, iov[1].iov_len);
 	if (cnt <= 0) {
-		f->flags |= F_EOF ^ ((F_ERR^F_EOF) & cnt);
-		return cnt;
+		f->flags |= cnt ? F_ERR : F_EOF;
+		return 0;
 	}
 	if (cnt <= iov[0].iov_len) return cnt;
 	cnt -= iov[0].iov_len;
diff --git a/src/stdio/__towrite.c b/src/stdio/__towrite.c
index 0a69d926..b022cbca 100644
--- a/src/stdio/__towrite.c
+++ b/src/stdio/__towrite.c
@@ -3,7 +3,7 @@
 int __towrite(FILE *f)
 {
 	f->mode |= f->mode-1;
-	if (f->flags & (F_NOWR)) {
+	if (f->flags & F_NOWR) {
 		f->flags |= F_ERR;
 		return EOF;
 	}
diff --git a/src/stdio/fclose.c b/src/stdio/fclose.c
index d687a877..c675413d 100644
--- a/src/stdio/fclose.c
+++ b/src/stdio/fclose.c
@@ -24,7 +24,7 @@ int fclose(FILE *f)
 	r = fflush(f);
 	r |= f->close(f);
 
-	if (f->getln_buf) free(f->getln_buf);
+	free(f->getln_buf);
 	if (!perm) free(f);
 	else FUNLOCK(f);
 
diff --git a/src/stdio/fgetpos.c b/src/stdio/fgetpos.c
index c3fa0eb0..6eb361e1 100644
--- a/src/stdio/fgetpos.c
+++ b/src/stdio/fgetpos.c
@@ -4,7 +4,7 @@ int fgetpos(FILE *restrict f, fpos_t *restrict pos)
 {
 	off_t off = __ftello(f);
 	if (off < 0) return -1;
-	*(off_t *)pos = off;
+	*(long long *)pos = off;
 	return 0;
 }
 
diff --git a/src/stdio/fileno.c b/src/stdio/fileno.c
index ba7f9391..0bd0e988 100644
--- a/src/stdio/fileno.c
+++ b/src/stdio/fileno.c
@@ -1,13 +1,16 @@
 #include "stdio_impl.h"
+#include <errno.h>
 
 int fileno(FILE *f)
 {
-	/* f->fd never changes, but the lock must be obtained and released
-	 * anyway since this function cannot return while another thread
-	 * holds the lock. */
 	FLOCK(f);
+	int fd = f->fd;
 	FUNLOCK(f);
-	return f->fd;
+	if (fd < 0) {
+		errno = EBADF;
+		return -1;
+	}
+	return fd;
 }
 
 weak_alias(fileno, fileno_unlocked);
diff --git a/src/stdio/flockfile.c b/src/stdio/flockfile.c
index a196c1ef..6806cf8b 100644
--- a/src/stdio/flockfile.c
+++ b/src/stdio/flockfile.c
@@ -1,10 +1,11 @@
 #include "stdio_impl.h"
 #include "pthread_impl.h"
 
+void __register_locked_file(FILE *, pthread_t);
+
 void flockfile(FILE *f)
 {
-	while (ftrylockfile(f)) {
-		int owner = f->lock;
-		if (owner) __wait(&f->lock, &f->waiters, owner, 1);
-	}
+	if (!ftrylockfile(f)) return;
+	__lockfile(f);
+	__register_locked_file(f, __pthread_self());
 }
diff --git a/src/stdio/fmemopen.c b/src/stdio/fmemopen.c
index 2ce43d32..5e0eeb50 100644
--- a/src/stdio/fmemopen.c
+++ b/src/stdio/fmemopen.c
@@ -9,6 +9,12 @@ struct cookie {
 	int mode;
 };
 
+struct mem_FILE {
+	FILE f;
+	struct cookie c;
+	unsigned char buf[UNGET+BUFSIZ], buf2[];
+};
+
 static off_t mseek(FILE *f, off_t off, int whence)
 {
 	ssize_t base;
@@ -72,8 +78,7 @@ static int mclose(FILE *m)
 
 FILE *fmemopen(void *restrict buf, size_t size, const char *restrict mode)
 {
-	FILE *f;
-	struct cookie *c;
+	struct mem_FILE *f;
 	int plus = !!strchr(mode, '+');
 	
 	if (!size || !strchr("rwa", *mode)) {
@@ -86,29 +91,35 @@ FILE *fmemopen(void *restrict buf, size_t size, const char *restrict mode)
 		return 0;
 	}
 
-	f = calloc(sizeof *f + sizeof *c + UNGET + BUFSIZ + (buf?0:size), 1);
+	f = malloc(sizeof *f + (buf?0:size));
 	if (!f) return 0;
-	f->cookie = c = (void *)(f+1);
-	f->fd = -1;
-	f->lbf = EOF;
-	f->buf = (unsigned char *)(c+1) + UNGET;
-	f->buf_size = BUFSIZ;
-	if (!buf) buf = f->buf + BUFSIZ;
+	memset(&f->f, 0, sizeof f->f);
+	f->f.cookie = &f->c;
+	f->f.fd = -1;
+	f->f.lbf = EOF;
+	f->f.buf = f->buf + UNGET;
+	f->f.buf_size = sizeof f->buf - UNGET;
+	if (!buf) {
+		buf = f->buf2;;
+		memset(buf, 0, size);
+	}
 
-	c->buf = buf;
-	c->size = size;
-	c->mode = *mode;
+	memset(&f->c, 0, sizeof f->c);
+	f->c.buf = buf;
+	f->c.size = size;
+	f->c.mode = *mode;
 	
-	if (!plus) f->flags = (*mode == 'r') ? F_NOWR : F_NORD;
-	if (*mode == 'r') c->len = size;
-	else if (*mode == 'a') c->len = c->pos = strnlen(buf, size);
+	if (!plus) f->f.flags = (*mode == 'r') ? F_NOWR : F_NORD;
+	if (*mode == 'r') f->c.len = size;
+	else if (*mode == 'a') f->c.len = f->c.pos = strnlen(buf, size);
+	else if (plus) *f->c.buf = 0;
 
-	f->read = mread;
-	f->write = mwrite;
-	f->seek = mseek;
-	f->close = mclose;
+	f->f.read = mread;
+	f->f.write = mwrite;
+	f->f.seek = mseek;
+	f->f.close = mclose;
 
-	if (!libc.threaded) f->lock = -1;
+	if (!libc.threaded) f->f.lock = -1;
 
-	return __ofl_add(f);
+	return __ofl_add(&f->f);
 }
diff --git a/src/stdio/fopencookie.c b/src/stdio/fopencookie.c
index 2f46dd53..da042fe8 100644
--- a/src/stdio/fopencookie.c
+++ b/src/stdio/fopencookie.c
@@ -116,15 +116,12 @@ FILE *fopencookie(void *cookie, const char *mode, cookie_io_functions_t iofuncs)
 
 	/* Set up our fcookie */
 	f->fc.cookie = cookie;
-	f->fc.iofuncs.read = iofuncs.read;
-	f->fc.iofuncs.write = iofuncs.write;
-	f->fc.iofuncs.seek = iofuncs.seek;
-	f->fc.iofuncs.close = iofuncs.close;
+	f->fc.iofuncs = iofuncs;
 
 	f->f.fd = -1;
 	f->f.cookie = &f->fc;
 	f->f.buf = f->buf + UNGET;
-	f->f.buf_size = BUFSIZ;
+	f->f.buf_size = sizeof f->buf - UNGET;
 	f->f.lbf = EOF;
 
 	/* Initialize op ptrs. No problem if some are unneeded. */
diff --git a/src/stdio/fread.c b/src/stdio/fread.c
index aef75f73..733d3716 100644
--- a/src/stdio/fread.c
+++ b/src/stdio/fread.c
@@ -25,7 +25,7 @@ size_t fread(void *restrict destv, size_t size, size_t nmemb, FILE *restrict f)
 	/* Read the remainder directly */
 	for (; l; l-=k, dest+=k) {
 		k = __toread(f) ? 0 : f->read(f, dest, l);
-		if (k+1<=1) {
+		if (!k) {
 			FUNLOCK(f);
 			return (len-l)/size;
 		}
diff --git a/src/stdio/fsetpos.c b/src/stdio/fsetpos.c
index 5d76c8cd..6310424e 100644
--- a/src/stdio/fsetpos.c
+++ b/src/stdio/fsetpos.c
@@ -2,7 +2,7 @@
 
 int fsetpos(FILE *f, const fpos_t *pos)
 {
-	return __fseeko(f, *(const off_t *)pos, SEEK_SET);
+	return __fseeko(f, *(const long long *)pos, SEEK_SET);
 }
 
 LFS64(fsetpos);
diff --git a/src/stdio/ftrylockfile.c b/src/stdio/ftrylockfile.c
index eb13c839..3b97807a 100644
--- a/src/stdio/ftrylockfile.c
+++ b/src/stdio/ftrylockfile.c
@@ -2,6 +2,8 @@
 #include "pthread_impl.h"
 #include <limits.h>
 
+#define MAYBE_WAITERS 0x40000000
+
 void __do_orphaned_stdio_locks()
 {
 	FILE *f;
@@ -18,23 +20,29 @@ void __unlist_locked_file(FILE *f)
 	}
 }
 
+void __register_locked_file(FILE *f, pthread_t self)
+{
+	f->lockcount = 1;
+	f->prev_locked = 0;
+	f->next_locked = self->stdio_locks;
+	if (f->next_locked) f->next_locked->prev_locked = f;
+	self->stdio_locks = f;
+}
+
 int ftrylockfile(FILE *f)
 {
 	pthread_t self = __pthread_self();
 	int tid = self->tid;
-	if (f->lock == tid) {
+	int owner = f->lock;
+	if ((owner & ~MAYBE_WAITERS) == tid) {
 		if (f->lockcount == LONG_MAX)
 			return -1;
 		f->lockcount++;
 		return 0;
 	}
-	if (f->lock < 0) f->lock = 0;
-	if (f->lock || a_cas(&f->lock, 0, tid))
+	if (owner < 0) f->lock = owner = 0;
+	if (owner || a_cas(&f->lock, 0, tid))
 		return -1;
-	f->lockcount = 1;
-	f->prev_locked = 0;
-	f->next_locked = self->stdio_locks;
-	if (f->next_locked) f->next_locked->prev_locked = f;
-	self->stdio_locks = f;
+	__register_locked_file(f, self);
 	return 0;
 }
diff --git a/src/stdio/getdelim.c b/src/stdio/getdelim.c
index 1ccd8029..d4b23882 100644
--- a/src/stdio/getdelim.c
+++ b/src/stdio/getdelim.c
@@ -3,8 +3,6 @@
 #include <inttypes.h>
 #include <errno.h>
 
-#define MIN(a,b) ((a)<(b) ? (a) : (b))
-
 ssize_t getdelim(char **restrict s, size_t *restrict n, int delim, FILE *restrict f)
 {
 	char *tmp;
diff --git a/src/stdio/open_memstream.c b/src/stdio/open_memstream.c
index eab024da..40f5ad60 100644
--- a/src/stdio/open_memstream.c
+++ b/src/stdio/open_memstream.c
@@ -12,6 +12,12 @@ struct cookie {
 	size_t space;
 };
 
+struct ms_FILE {
+	FILE f;
+	struct cookie c;
+	unsigned char buf[BUFSIZ];
+};
+
 static off_t ms_seek(FILE *f, off_t off, int whence)
 {
 	ssize_t base;
@@ -57,34 +63,35 @@ static int ms_close(FILE *f)
 
 FILE *open_memstream(char **bufp, size_t *sizep)
 {
-	FILE *f;
-	struct cookie *c;
+	struct ms_FILE *f;
 	char *buf;
 
-	if (!(f=malloc(sizeof *f + sizeof *c + BUFSIZ))) return 0;
+	if (!(f=malloc(sizeof *f))) return 0;
 	if (!(buf=malloc(sizeof *buf))) {
 		free(f);
 		return 0;
 	}
-	memset(f, 0, sizeof *f + sizeof *c);
-	f->cookie = c = (void *)(f+1);
+	memset(&f->f, 0, sizeof f->f);
+	memset(&f->c, 0, sizeof f->c);
+	f->f.cookie = &f->c;
 
-	c->bufp = bufp;
-	c->sizep = sizep;
-	c->pos = c->len = c->space = *sizep = 0;
-	c->buf = *bufp = buf;
+	f->c.bufp = bufp;
+	f->c.sizep = sizep;
+	f->c.pos = f->c.len = f->c.space = *sizep = 0;
+	f->c.buf = *bufp = buf;
 	*buf = 0;
 
-	f->flags = F_NORD;
-	f->fd = -1;
-	f->buf = (void *)(c+1);
-	f->buf_size = BUFSIZ;
-	f->lbf = EOF;
-	f->write = ms_write;
-	f->seek = ms_seek;
-	f->close = ms_close;
+	f->f.flags = F_NORD;
+	f->f.fd = -1;
+	f->f.buf = f->buf;
+	f->f.buf_size = sizeof f->buf;
+	f->f.lbf = EOF;
+	f->f.write = ms_write;
+	f->f.seek = ms_seek;
+	f->f.close = ms_close;
+	f->f.mode = -1;
 
-	if (!libc.threaded) f->lock = -1;
+	if (!libc.threaded) f->f.lock = -1;
 
-	return __ofl_add(f);
+	return __ofl_add(&f->f);
 }
diff --git a/src/stdio/open_wmemstream.c b/src/stdio/open_wmemstream.c
index 4d90cd97..a7c3a645 100644
--- a/src/stdio/open_wmemstream.c
+++ b/src/stdio/open_wmemstream.c
@@ -14,6 +14,12 @@ struct cookie {
 	mbstate_t mbs;
 };
 
+struct wms_FILE {
+	FILE f;
+	struct cookie c;
+	unsigned char buf[1];
+};
+
 static off_t wms_seek(FILE *f, off_t off, int whence)
 {
 	ssize_t base;
@@ -59,34 +65,36 @@ static int wms_close(FILE *f)
 
 FILE *open_wmemstream(wchar_t **bufp, size_t *sizep)
 {
-	FILE *f;
-	struct cookie *c;
+	struct wms_FILE *f;
 	wchar_t *buf;
 
-	if (!(f=malloc(sizeof *f + sizeof *c))) return 0;
+	if (!(f=malloc(sizeof *f))) return 0;
 	if (!(buf=malloc(sizeof *buf))) {
 		free(f);
 		return 0;
 	}
-	memset(f, 0, sizeof *f + sizeof *c);
-	f->cookie = c = (void *)(f+1);
+	memset(&f->f, 0, sizeof f->f);
+	memset(&f->c, 0, sizeof f->c);
+	f->f.cookie = &f->c;
 
-	c->bufp = bufp;
-	c->sizep = sizep;
-	c->pos = c->len = c->space = *sizep = 0;
-	c->buf = *bufp = buf;
+	f->c.bufp = bufp;
+	f->c.sizep = sizep;
+	f->c.pos = f->c.len = f->c.space = *sizep = 0;
+	f->c.buf = *bufp = buf;
 	*buf = 0;
 
-	f->flags = F_NORD;
-	f->fd = -1;
-	f->buf = (void *)(c+1);
-	f->buf_size = 0;
-	f->lbf = EOF;
-	f->write = wms_write;
-	f->seek = wms_seek;
-	f->close = wms_close;
+	f->f.flags = F_NORD;
+	f->f.fd = -1;
+	f->f.buf = f->buf;
+	f->f.buf_size = 0;
+	f->f.lbf = EOF;
+	f->f.write = wms_write;
+	f->f.seek = wms_seek;
+	f->f.close = wms_close;
+
+	if (!libc.threaded) f->f.lock = -1;
 
-	if (!libc.threaded) f->lock = -1;
+	fwide(&f->f, 1);
 
-	return __ofl_add(f);
+	return __ofl_add(&f->f);
 }
diff --git a/src/stdio/perror.c b/src/stdio/perror.c
index fdcb4d71..d0943f26 100644
--- a/src/stdio/perror.c
+++ b/src/stdio/perror.c
@@ -9,6 +9,11 @@ void perror(const char *msg)
 	char *errstr = strerror(errno);
 
 	FLOCK(f);
+
+	/* Save stderr's orientation and encoding rule, since perror is not
+	 * permitted to change them. */
+	void *old_locale = f->locale;
+	int old_mode = f->mode;
 	
 	if (msg && *msg) {
 		fwrite(msg, strlen(msg), 1, f);
@@ -18,5 +23,8 @@ void perror(const char *msg)
 	fwrite(errstr, strlen(errstr), 1, f);
 	fputc('\n', f);
 
+	f->mode = old_mode;
+	f->locale = old_locale;
+
 	FUNLOCK(f);
 }
diff --git a/src/stdio/setvbuf.c b/src/stdio/setvbuf.c
index 541a125f..06ea296c 100644
--- a/src/stdio/setvbuf.c
+++ b/src/stdio/setvbuf.c
@@ -1,22 +1,25 @@
 #include "stdio_impl.h"
 
-/* This function makes no attempt to protect the user from his/her own
- * stupidity. If called any time but when then ISO C standard specifically
- * allows it, all hell can and will break loose, especially with threads!
- *
- * This implementation ignores all arguments except the buffering type,
- * and uses the existing buffer allocated alongside the FILE object.
- * In the case of stderr where the preexisting buffer is length 1, it
- * is not possible to set line buffering or full buffering. */
+/* The behavior of this function is undefined except when it is the first
+ * operation on the stream, so the presence or absence of locking is not
+ * observable in a program whose behavior is defined. Thus no locking is
+ * performed here. No allocation of buffers is performed, but a buffer
+ * provided by the caller is used as long as it is suitably sized. */
 
 int setvbuf(FILE *restrict f, char *restrict buf, int type, size_t size)
 {
 	f->lbf = EOF;
 
-	if (type == _IONBF)
+	if (type == _IONBF) {
 		f->buf_size = 0;
-	else if (type == _IOLBF)
-		f->lbf = '\n';
+	} else {
+		if (buf && size >= UNGET) {
+			f->buf = (void *)(buf + UNGET);
+			f->buf_size = size - UNGET;
+		}
+		if (type == _IOLBF && f->buf_size)
+			f->lbf = '\n';
+	}
 
 	f->flags |= F_SVB;
 
diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index 50fb55c1..2100eb5e 100644
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -220,6 +220,7 @@ static int fmt_fp(FILE *f, long double y, int w, int p, int fl, int t)
 		else re=LDBL_MANT_DIG/4-1-p;
 
 		if (re) {
+			round *= 1<<(LDBL_MANT_DIG%4);
 			while (re--) round*=16;
 			if (*prefix=='-') {
 				y=-y;
@@ -673,11 +674,12 @@ int vfprintf(FILE *restrict f, const char *restrict fmt, va_list ap)
 	if (f->mode < 1) f->flags &= ~F_ERR;
 	if (!f->buf_size) {
 		saved_buf = f->buf;
-		f->wpos = f->wbase = f->buf = internal_buf;
+		f->buf = internal_buf;
 		f->buf_size = sizeof internal_buf;
-		f->wend = internal_buf + sizeof internal_buf;
+		f->wpos = f->wbase = f->wend = 0;
 	}
-	ret = printf_core(f, fmt, &ap2, nl_arg, nl_type);
+	if (!f->wend && __towrite(f)) ret = -1;
+	else ret = printf_core(f, fmt, &ap2, nl_arg, nl_type);
 	if (saved_buf) {
 		f->write(f, 0, 0);
 		if (!f->wpos) ret = -1;
diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c
index e87ad42a..9d774fcc 100644
--- a/src/stdio/vfwprintf.c
+++ b/src/stdio/vfwprintf.c
@@ -255,8 +255,11 @@ static int wprintf_core(FILE *f, const wchar_t *fmt, va_list *ap, union arg *nl_
 			}
 			continue;
 		case 'c':
+			if (w<1) w=1;
+			if (w>1 && !(fl&LEFT_ADJ)) fprintf(f, "%*s", w-1, "");
 			fputwc(btowc(arg.i), f);
-			l = 1;
+			if (w>1 && (fl&LEFT_ADJ)) fprintf(f, "%*s", w-1, "");
+			l = w;
 			continue;
 		case 'C':
 			fputwc(arg.i, f);
diff --git a/src/stdio/vswprintf.c b/src/stdio/vswprintf.c
index 6eb2f6ac..38efed65 100644
--- a/src/stdio/vswprintf.c
+++ b/src/stdio/vswprintf.c
@@ -1,6 +1,5 @@
 #include "stdio_impl.h"
 #include <limits.h>
-#include <string.h>
 #include <errno.h>
 #include <stdint.h>
 #include <wchar.h>
@@ -37,17 +36,17 @@ static size_t sw_write(FILE *f, const unsigned char *s, size_t l)
 int vswprintf(wchar_t *restrict s, size_t n, const wchar_t *restrict fmt, va_list ap)
 {
 	int r;
-	FILE f;
 	unsigned char buf[256];
 	struct cookie c = { s, n-1 };
+	FILE f = {
+		.lbf = EOF,
+		.write = sw_write,
+		.lock = -1,
+		.buf = buf,
+		.buf_size = sizeof buf,
+		.cookie = &c,
+	};
 
-	memset(&f, 0, sizeof(FILE));
-	f.lbf = EOF;
-	f.write = sw_write;
-	f.buf_size = sizeof buf;
-	f.buf = buf;
-	f.lock = -1;
-	f.cookie = &c;
 	if (!n) {
 		return -1;
 	} else if (n > INT_MAX) {
diff --git a/src/stdlib/abs.c b/src/stdlib/abs.c
index 4806d629..e721fdc2 100644
--- a/src/stdlib/abs.c
+++ b/src/stdlib/abs.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 int abs(int a)
 {
 	return a>0 ? a : -a;
diff --git a/src/stdlib/bsearch.c b/src/stdlib/bsearch.c
index 61d89367..fe050ea3 100644
--- a/src/stdlib/bsearch.c
+++ b/src/stdlib/bsearch.c
@@ -7,13 +7,13 @@ void *bsearch(const void *key, const void *base, size_t nel, size_t width, int (
 	while (nel > 0) {
 		try = (char *)base + width*(nel/2);
 		sign = cmp(key, try);
-		if (!sign) return try;
-		else if (nel == 1) break;
-		else if (sign < 0)
+		if (sign < 0) {
 			nel /= 2;
-		else {
-			base = try;
-			nel -= nel/2;
+		} else if (sign > 0) {
+			base = (char *)try + width;
+			nel -= nel/2+1;
+		} else {
+			return try;
 		}
 	}
 	return NULL;
diff --git a/src/stdlib/labs.c b/src/stdlib/labs.c
index 675b95b8..83ddb147 100644
--- a/src/stdlib/labs.c
+++ b/src/stdlib/labs.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 long labs(long a)
 {
 	return a>0 ? a : -a;
diff --git a/src/stdlib/llabs.c b/src/stdlib/llabs.c
index bec4a03d..9dfaf5cf 100644
--- a/src/stdlib/llabs.c
+++ b/src/stdlib/llabs.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 long long llabs(long long a)
 {
 	return a>0 ? a : -a;
diff --git a/src/string/explicit_bzero.c b/src/string/explicit_bzero.c
new file mode 100644
index 00000000..f2e12f23
--- /dev/null
+++ b/src/string/explicit_bzero.c
@@ -0,0 +1,8 @@
+#define _BSD_SOURCE
+#include <string.h>
+
+void explicit_bzero(void *d, size_t n)
+{
+	d = memset(d, 0, n);
+	__asm__ __volatile__ ("" : : "r"(d) : "memory");
+}
diff --git a/src/thread/arm/__aeabi_read_tp.s b/src/thread/arm/__aeabi_read_tp.s
index 9d0cd311..2585620c 100644
--- a/src/thread/arm/__aeabi_read_tp.s
+++ b/src/thread/arm/__aeabi_read_tp.s
@@ -2,7 +2,9 @@
 .global __aeabi_read_tp
 .type __aeabi_read_tp,%function
 __aeabi_read_tp:
-	push {r1,r2,r3,lr}
-	bl __aeabi_read_tp_c
-	pop {r1,r2,r3,lr}
-	bx lr
+	ldr r0,1f
+	add r0,r0,pc
+	ldr r0,[r0]
+2:	bx r0
+	.align 2
+1:	.word __a_gettp_ptr - 2b
diff --git a/src/thread/arm/__aeabi_read_tp_c.c b/src/thread/arm/__aeabi_read_tp_c.c
deleted file mode 100644
index 654bdc57..00000000
--- a/src/thread/arm/__aeabi_read_tp_c.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include "pthread_impl.h"
-#include <stdint.h>
-
-__attribute__((__visibility__("hidden")))
-void *__aeabi_read_tp_c(void)
-{
-	return (void *)((uintptr_t)__pthread_self()-8+sizeof(struct pthread));
-}
diff --git a/src/thread/default_attr.c b/src/thread/default_attr.c
new file mode 100644
index 00000000..46fe98ee
--- /dev/null
+++ b/src/thread/default_attr.c
@@ -0,0 +1,4 @@
+#include "pthread_impl.h"
+
+size_t __default_stacksize = DEFAULT_STACK_SIZE;
+size_t __default_guardsize = DEFAULT_GUARD_SIZE;
diff --git a/src/thread/m68k/__m68k_read_tp.s b/src/thread/m68k/__m68k_read_tp.s
new file mode 100644
index 00000000..86886da8
--- /dev/null
+++ b/src/thread/m68k/__m68k_read_tp.s
@@ -0,0 +1,8 @@
+.text
+.global __m68k_read_tp
+.type   __m68k_read_tp,@function
+__m68k_read_tp:
+	move.l #333,%d0
+	trap #0
+	move.l %d0,%a0
+	rts
diff --git a/src/thread/m68k/clone.s b/src/thread/m68k/clone.s
new file mode 100644
index 00000000..5b61b6fa
--- /dev/null
+++ b/src/thread/m68k/clone.s
@@ -0,0 +1,24 @@
+.text
+.global __clone
+.type   __clone,@function
+__clone:
+	movem.l %d2-%d5,-(%sp)
+	move.l #120,%d0
+	move.l 28(%sp),%d1
+	move.l 24(%sp),%d2
+	and.l #-16,%d2
+	move.l 36(%sp),%d3
+	move.l 44(%sp),%d4
+	move.l 40(%sp),%d5
+	move.l 20(%sp),%a0
+	move.l 32(%sp),%a1
+	trap #0
+	tst.l %d0
+	beq 1f
+	movem.l (%sp)+,%d2-%d5
+	rts
+1:	move.l %a1,-(%sp)
+	jsr (%a0)
+	move.l #1,%d0
+	trap #0
+	clr.b 0
diff --git a/src/thread/m68k/syscall_cp.s b/src/thread/m68k/syscall_cp.s
new file mode 100644
index 00000000..5628a896
--- /dev/null
+++ b/src/thread/m68k/syscall_cp.s
@@ -0,0 +1,26 @@
+.text
+.global __cp_begin
+.hidden __cp_begin
+.global __cp_end
+.hidden __cp_end
+.global __cp_cancel
+.hidden __cp_cancel
+.hidden __cancel
+.global __syscall_cp_asm
+.hidden __syscall_cp_asm
+.type   __syscall_cp_asm,@function
+__syscall_cp_asm:
+	movem.l %d2-%d5,-(%sp)
+	movea.l 20(%sp),%a0
+__cp_begin:
+	move.l (%a0),%d0
+	bne __cp_cancel
+	movem.l 24(%sp),%d0-%d5/%a0
+	trap #0
+__cp_end:
+	movem.l (%sp)+,%d2-%d5
+	rts
+__cp_cancel:
+	movem.l (%sp)+,%d2-%d5
+	move.l __cancel-.-8,%a1
+	jmp (%pc,%a1)
diff --git a/src/thread/mips/clone.s b/src/thread/mips/clone.s
index 37dddf57..30a0146b 100644
--- a/src/thread/mips/clone.s
+++ b/src/thread/mips/clone.s
@@ -28,5 +28,8 @@ __clone:
 	nop
 1:	lw $25, 0($sp)
 	lw $4, 4($sp)
-	jr $25
+	jalr $25
 	nop
+	move $4, $2
+	li $2, 4001
+	syscall
diff --git a/src/thread/mips64/clone.s b/src/thread/mips64/clone.s
index 229d2677..1b71e07c 100644
--- a/src/thread/mips64/clone.s
+++ b/src/thread/mips64/clone.s
@@ -26,5 +26,8 @@ __clone:
 	nop
 1:	ld	$25, 0($sp)	# function pointer
 	ld	$4, 8($sp)	# argument pointer
-	jr	$25		# call the user's function
+	jalr	$25		# call the user's function
 	nop
+	move 	$4, $2
+	li	$2, 5058
+	syscall
diff --git a/src/thread/mipsn32/clone.s b/src/thread/mipsn32/clone.s
index 51035852..ebf5dbea 100644
--- a/src/thread/mipsn32/clone.s
+++ b/src/thread/mipsn32/clone.s
@@ -26,5 +26,8 @@ __clone:
 	nop
 1:	lw	$25, 0($sp)	# function pointer
 	lw	$4, 4($sp)	# argument pointer
-	jr	$25		# call the user's function
+	jalr	$25		# call the user's function
 	nop
+	move 	$4, $2
+	li	$2, 6058
+	syscall
diff --git a/src/thread/powerpc64/syscall_cp.s b/src/thread/powerpc64/syscall_cp.s
index d420dbde..ef50ed00 100644
--- a/src/thread/powerpc64/syscall_cp.s
+++ b/src/thread/powerpc64/syscall_cp.s
@@ -34,4 +34,11 @@ __cp_end:
 	blr
 
 __cp_cancel:
+	mflr 0
+	bl 1f
+	.long .TOC.-.
+1:	mflr 3
+	lwa 2, 0(3)
+	add 2, 2, 3
+	mtlr 0
 	b __cancel
diff --git a/src/thread/pthread_attr_init.c b/src/thread/pthread_attr_init.c
index 8f6e3374..a962b460 100644
--- a/src/thread/pthread_attr_init.c
+++ b/src/thread/pthread_attr_init.c
@@ -1,9 +1,12 @@
 #include "pthread_impl.h"
 
+extern size_t __default_stacksize;
+extern size_t __default_guardsize;
+
 int pthread_attr_init(pthread_attr_t *a)
 {
 	*a = (pthread_attr_t){0};
-	a->_a_stacksize = DEFAULT_STACK_SIZE;
-	a->_a_guardsize = DEFAULT_GUARD_SIZE;
+	a->_a_stacksize = __default_stacksize;
+	a->_a_guardsize = __default_guardsize;
 	return 0;
 }
diff --git a/src/thread/pthread_attr_setinheritsched.c b/src/thread/pthread_attr_setinheritsched.c
index c91d8f83..4115e2fe 100644
--- a/src/thread/pthread_attr_setinheritsched.c
+++ b/src/thread/pthread_attr_setinheritsched.c
@@ -1,8 +1,29 @@
 #include "pthread_impl.h"
+#include "syscall.h"
+
+__attribute__((__visibility__("hidden")))
+void *__start_sched(void *p)
+{
+	struct start_sched_args *ssa = p;
+	void *start_arg = ssa->start_arg;
+	void *(*start_fn)(void *) = ssa->start_fn;
+	pthread_t self = __pthread_self();
+
+	int ret = -__syscall(SYS_sched_setscheduler, self->tid,
+		ssa->attr->_a_policy, &ssa->attr->_a_prio);
+	if (!ret) __restore_sigs(&ssa->mask);
+	a_store(&ssa->futex, ret);
+	__wake(&ssa->futex, 1, 1);
+	if (ret) {
+		self->detach_state = DT_DYNAMIC;
+		return 0;
+	}
+	return start_fn(start_arg);
+}
 
 int pthread_attr_setinheritsched(pthread_attr_t *a, int inherit)
 {
-	if (inherit > 1U) return EINVAL;
+	if (inherit > 1U) return ENOTSUP;
 	a->_a_sched = inherit;
 	return 0;
 }
diff --git a/src/thread/pthread_attr_setscope.c b/src/thread/pthread_attr_setscope.c
index 46b520c0..933bdb38 100644
--- a/src/thread/pthread_attr_setscope.c
+++ b/src/thread/pthread_attr_setscope.c
@@ -8,6 +8,6 @@ int pthread_attr_setscope(pthread_attr_t *a, int scope)
 	case PTHREAD_SCOPE_PROCESS:
 		return ENOTSUP;
 	default:
-		return EINVAL;
+		return ENOTSUP;
 	}
 }
diff --git a/src/thread/pthread_barrierattr_setpshared.c b/src/thread/pthread_barrierattr_setpshared.c
index b391461e..c2d2929d 100644
--- a/src/thread/pthread_barrierattr_setpshared.c
+++ b/src/thread/pthread_barrierattr_setpshared.c
@@ -2,6 +2,7 @@
 
 int pthread_barrierattr_setpshared(pthread_barrierattr_t *a, int pshared)
 {
+	if (pshared > 1U) return EINVAL;
 	a->__attr = pshared ? INT_MIN : 0;
 	return 0;
 }
diff --git a/src/thread/pthread_cancel.c b/src/thread/pthread_cancel.c
index 3d229223..5d458af2 100644
--- a/src/thread/pthread_cancel.c
+++ b/src/thread/pthread_cancel.c
@@ -61,6 +61,9 @@ static void cancel_handler(int sig, siginfo_t *si, void *ctx)
 
 	if (self->cancelasync || pc >= (uintptr_t)__cp_begin && pc < (uintptr_t)__cp_end) {
 		uc->uc_mcontext.MC_PC = (uintptr_t)__cp_cancel;
+#ifdef CANCEL_GOT
+		uc->uc_mcontext.MC_GOT = CANCEL_GOT;
+#endif
 		return;
 	}
 
@@ -92,6 +95,10 @@ int pthread_cancel(pthread_t t)
 		init = 1;
 	}
 	a_store(&t->cancel, 1);
-	if (t == pthread_self() && !t->cancelasync) return 0;
+	if (t == pthread_self()) {
+		if (t->canceldisable == PTHREAD_CANCEL_ENABLE && t->cancelasync)
+			pthread_exit(PTHREAD_CANCELED);
+		return 0;
+	}
 	return pthread_kill(t, SIGCANCEL);
 }
diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
index 439ee363..27ace2c6 100644
--- a/src/thread/pthread_create.c
+++ b/src/thread/pthread_create.c
@@ -19,6 +19,12 @@ weak_alias(dummy_0, __pthread_tsd_run_dtors);
 weak_alias(dummy_0, __do_orphaned_stdio_locks);
 weak_alias(dummy_0, __dl_thread_cleanup);
 
+static void *dummy_1(void *p)
+{
+	return 0;
+}
+weak_alias(dummy_1, __start_sched);
+
 _Noreturn void __pthread_exit(void *result)
 {
 	pthread_t self = __pthread_self();
@@ -37,11 +43,11 @@ _Noreturn void __pthread_exit(void *result)
 
 	__pthread_tsd_run_dtors();
 
-	LOCK(self->exitlock);
-
-	/* Mark this thread dead before decrementing count */
+	/* Access to target the exiting thread with syscalls that use
+	 * its kernel tid is controlled by killlock. For detached threads,
+	 * any use past this point would have undefined behavior, but for
+	 * joinable threads it's a valid usage that must be handled. */
 	LOCK(self->killlock);
-	self->dead = 1;
 
 	/* Block all signals before decrementing the live thread count.
 	 * This is important to ensure that dynamically allocated TLS
@@ -49,20 +55,14 @@ _Noreturn void __pthread_exit(void *result)
 	 * reasons as well. */
 	__block_all_sigs(&set);
 
-	/* Wait to unlock the kill lock, which governs functions like
-	 * pthread_kill which target a thread id, until signals have
-	 * been blocked. This precludes observation of the thread id
-	 * as a live thread (with application code running in it) after
-	 * the thread was reported dead by ESRCH being returned. */
-	UNLOCK(self->killlock);
-
 	/* It's impossible to determine whether this is "the last thread"
 	 * until performing the atomic decrement, since multiple threads
 	 * could exit at the same time. For the last thread, revert the
-	 * decrement and unblock signals to give the atexit handlers and
-	 * stdio cleanup code a consistent state. */
+	 * decrement, restore the tid, and unblock signals to give the
+	 * atexit handlers and stdio cleanup code a consistent state. */
 	if (a_fetch_add(&libc.threads_minus_1, -1)==0) {
 		libc.threads_minus_1 = 0;
+		UNLOCK(self->killlock);
 		__restore_sigs(&set);
 		exit(0);
 	}
@@ -89,15 +89,19 @@ _Noreturn void __pthread_exit(void *result)
 	__do_orphaned_stdio_locks();
 	__dl_thread_cleanup();
 
-	if (self->detached && self->map_base) {
+	/* This atomic potentially competes with a concurrent pthread_detach
+	 * call; the loser is responsible for freeing thread resources. */
+	int state = a_cas(&self->detach_state, DT_JOINABLE, DT_EXITING);
+
+	if (state>=DT_DETACHED && self->map_base) {
 		/* Detached threads must avoid the kernel clear_child_tid
 		 * feature, since the virtual address will have been
 		 * unmapped and possibly already reused by a new mapping
 		 * at the time the kernel would perform the write. In
 		 * the case of threads that started out detached, the
 		 * initial clone flags are correct, but if the thread was
-		 * detached later (== 2), we need to clear it here. */
-		if (self->detached == 2) __syscall(SYS_set_tid_address, 0);
+		 * detached later, we need to clear it here. */
+		if (state == DT_DYNAMIC) __syscall(SYS_set_tid_address, 0);
 
 		/* Robust list will no longer be valid, and was already
 		 * processed above, so unregister it with the kernel. */
@@ -113,6 +117,12 @@ _Noreturn void __pthread_exit(void *result)
 		__unmapself(self->map_base, self->map_size);
 	}
 
+	/* After the kernel thread exits, its tid may be reused. Clear it
+	 * to prevent inadvertent use and inform functions that would use
+	 * it that it's no longer available. */
+	self->tid = 0;
+	UNLOCK(self->killlock);
+
 	for (;;) __syscall(SYS_exit, 0);
 }
 
@@ -131,19 +141,6 @@ void __do_cleanup_pop(struct __ptcb *cb)
 static int start(void *p)
 {
 	pthread_t self = p;
-	/* States for startlock:
-	 * 0 = no need for start sync
-	 * 1 = waiting for parent to do work
-	 * 2 = failure in parent, child must abort
-	 * 3 = success in parent, child must restore sigmask */
-	if (self->startlock[0]) {
-		__wait(self->startlock, 0, 1, 1);
-		if (self->startlock[0] == 2) {
-			self->detached = 2;
-			pthread_exit(0);
-		}
-		__restore_sigs(self->sigmask);
-	}
 	if (self->unblock_cancel)
 		__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK,
 			SIGPT_SET, 0, _NSIG/8);
@@ -168,8 +165,8 @@ static void *dummy_tsd[1] = { 0 };
 weak_alias(dummy_tsd, __pthread_tsd_main);
 
 volatile int __block_new_threads = 0;
-size_t __default_stacksize = DEFAULT_STACK_SIZE;
-size_t __default_guardsize = DEFAULT_GUARD_SIZE;
+extern size_t __default_stacksize;
+extern size_t __default_guardsize;
 
 static FILE *volatile dummy_file = 0;
 weak_alias(dummy_file, __stdin_used);
@@ -194,6 +191,7 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
 		| CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID | CLONE_DETACHED;
 	int do_sched = 0;
 	pthread_attr_t attr = { 0 };
+	struct start_sched_args ssa;
 
 	if (!libc.can_do_threads) return ENOSYS;
 	self = __pthread_self();
@@ -272,24 +270,32 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
 	new->tsd = (void *)tsd;
 	new->locale = &libc.global_locale;
 	if (attr._a_detach) {
-		new->detached = 1;
+		new->detach_state = DT_DETACHED;
 		flags -= CLONE_CHILD_CLEARTID;
+	} else {
+		new->detach_state = DT_JOINABLE;
 	}
 	if (attr._a_sched) {
-		do_sched = new->startlock[0] = 1;
-		__block_app_sigs(new->sigmask);
+		do_sched = 1;
+		ssa.futex = -1;
+		ssa.start_fn = new->start;
+		ssa.start_arg = new->start_arg;
+		ssa.attr = &attr;
+		new->start = __start_sched;
+		new->start_arg = &ssa;
+		__block_app_sigs(&ssa.mask);
 	}
 	new->robust_list.head = &new->robust_list.head;
 	new->unblock_cancel = self->cancel;
 	new->CANARY = self->CANARY;
 
 	a_inc(&libc.threads_minus_1);
-	ret = __clone((c11 ? start_c11 : start), stack, flags, new, &new->tid, TP_ADJ(new), &new->tid);
+	ret = __clone((c11 ? start_c11 : start), stack, flags, new, &new->tid, TP_ADJ(new), &new->detach_state);
 
 	__release_ptc();
 
 	if (do_sched) {
-		__restore_sigs(new->sigmask);
+		__restore_sigs(&ssa.mask);
 	}
 
 	if (ret < 0) {
@@ -299,11 +305,9 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
 	}
 
 	if (do_sched) {
-		ret = __syscall(SYS_sched_setscheduler, new->tid,
-			attr._a_policy, &attr._a_prio);
-		a_store(new->startlock, ret<0 ? 2 : 3);
-		__wake(new->startlock, 1, 1);
-		if (ret < 0) return -ret;
+		__futexwait(&ssa.futex, -1, 1);
+		ret = ssa.futex;
+		if (ret) return ret;
 	}
 
 	*res = new;
diff --git a/src/thread/pthread_detach.c b/src/thread/pthread_detach.c
index 692bbaf9..9cee7a89 100644
--- a/src/thread/pthread_detach.c
+++ b/src/thread/pthread_detach.c
@@ -5,11 +5,10 @@ int __pthread_join(pthread_t, void **);
 
 static int __pthread_detach(pthread_t t)
 {
-	/* Cannot detach a thread that's already exiting */
-	if (a_cas(t->exitlock, 0, INT_MIN + 1))
+	/* If the cas fails, detach state is either already-detached
+	 * or exiting/exited, and pthread_join will trap or cleanup. */
+	if (a_cas(&t->detach_state, DT_JOINABLE, DT_DYNAMIC) != DT_JOINABLE)
 		return __pthread_join(t, 0);
-	t->detached = 2;
-	UNLOCK(t->exitlock);
 	return 0;
 }
 
diff --git a/src/thread/pthread_getattr_np.c b/src/thread/pthread_getattr_np.c
index 29a209bd..2881831f 100644
--- a/src/thread/pthread_getattr_np.c
+++ b/src/thread/pthread_getattr_np.c
@@ -6,7 +6,7 @@
 int pthread_getattr_np(pthread_t t, pthread_attr_t *a)
 {
 	*a = (pthread_attr_t){0};
-	a->_a_detach = !!t->detached;
+	a->_a_detach = t->detach_state>=DT_DETACHED;
 	a->_a_guardsize = t->guard_size;
 	if (t->stack) {
 		a->_a_stackaddr = (uintptr_t)t->stack;
diff --git a/src/thread/pthread_getschedparam.c b/src/thread/pthread_getschedparam.c
index a994b637..05be4242 100644
--- a/src/thread/pthread_getschedparam.c
+++ b/src/thread/pthread_getschedparam.c
@@ -4,7 +4,7 @@ int pthread_getschedparam(pthread_t t, int *restrict policy, struct sched_param
 {
 	int r;
 	LOCK(t->killlock);
-	if (t->dead) {
+	if (!t->tid) {
 		r = ESRCH;
 	} else {
 		r = -__syscall(SYS_sched_getparam, t->tid, param);
diff --git a/src/thread/pthread_join.c b/src/thread/pthread_join.c
index b7175c09..18264da6 100644
--- a/src/thread/pthread_join.c
+++ b/src/thread/pthread_join.c
@@ -7,13 +7,14 @@ int __pthread_setcancelstate(int, int *);
 
 int __pthread_timedjoin_np(pthread_t t, void **res, const struct timespec *at)
 {
-	int tmp, cs, r = 0;
+	int state, cs, r = 0;
 	__pthread_testcancel();
 	__pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
 	if (cs == PTHREAD_CANCEL_ENABLE) __pthread_setcancelstate(cs, 0);
-	if (t->detached) a_crash();
-	while ((tmp = t->tid) && r != ETIMEDOUT && r != EINVAL)
-		r = __timedwait_cp(&t->tid, tmp, CLOCK_REALTIME, at, 0);
+	while ((state = t->detach_state) && r != ETIMEDOUT && r != EINVAL) {
+		if (state >= DT_DETACHED) a_crash();
+		r = __timedwait_cp(&t->detach_state, state, CLOCK_REALTIME, at, 0);
+	}
 	__pthread_setcancelstate(cs, 0);
 	if (r == ETIMEDOUT || r == EINVAL) return r;
 	a_barrier();
@@ -29,7 +30,7 @@ int __pthread_join(pthread_t t, void **res)
 
 int __pthread_tryjoin_np(pthread_t t, void **res)
 {
-	return t->tid ? EBUSY : __pthread_join(t, res);
+	return t->detach_state==DT_JOINABLE ? EBUSY : __pthread_join(t, res);
 }
 
 weak_alias(__pthread_tryjoin_np, pthread_tryjoin_np);
diff --git a/src/thread/pthread_kill.c b/src/thread/pthread_kill.c
index f0903420..6d70e626 100644
--- a/src/thread/pthread_kill.c
+++ b/src/thread/pthread_kill.c
@@ -4,7 +4,8 @@ int pthread_kill(pthread_t t, int sig)
 {
 	int r;
 	LOCK(t->killlock);
-	r = t->dead ? ESRCH : -__syscall(SYS_tkill, t->tid, sig);
+	r = t->tid ? -__syscall(SYS_tkill, t->tid, sig)
+		: (sig+0U >= _NSIG ? EINVAL : 0);
 	UNLOCK(t->killlock);
 	return r;
 }
diff --git a/src/thread/pthread_setschedparam.c b/src/thread/pthread_setschedparam.c
index 9e2fa456..ab45f2ff 100644
--- a/src/thread/pthread_setschedparam.c
+++ b/src/thread/pthread_setschedparam.c
@@ -4,7 +4,7 @@ int pthread_setschedparam(pthread_t t, int policy, const struct sched_param *par
 {
 	int r;
 	LOCK(t->killlock);
-	r = t->dead ? ESRCH : -__syscall(SYS_sched_setscheduler, t->tid, policy, param);
+	r = !t->tid ? ESRCH : -__syscall(SYS_sched_setscheduler, t->tid, policy, param);
 	UNLOCK(t->killlock);
 	return r;
 }
diff --git a/src/thread/pthread_setschedprio.c b/src/thread/pthread_setschedprio.c
index dc745b42..c353f6b5 100644
--- a/src/thread/pthread_setschedprio.c
+++ b/src/thread/pthread_setschedprio.c
@@ -4,7 +4,7 @@ int pthread_setschedprio(pthread_t t, int prio)
 {
 	int r;
 	LOCK(t->killlock);
-	r = t->dead ? ESRCH : -__syscall(SYS_sched_setparam, t->tid, &prio);
+	r = !t->tid ? ESRCH : -__syscall(SYS_sched_setparam, t->tid, &prio);
 	UNLOCK(t->killlock);
 	return r;
 }
diff --git a/src/time/__tz.c b/src/time/__tz.c
index 1dbb0b8f..814edcdf 100644
--- a/src/time/__tz.c
+++ b/src/time/__tz.c
@@ -230,7 +230,7 @@ static void do_tzset()
 			dst_off = __timezone - 3600;
 	} else {
 		__daylight = 0;
-		dst_off = 0;
+		dst_off = __timezone;
 	}
 
 	if (*s == ',') s++, getrule(&s, r0);
diff --git a/src/time/strftime.c b/src/time/strftime.c
index 708875ee..d3f2add9 100644
--- a/src/time/strftime.c
+++ b/src/time/strftime.c
@@ -181,9 +181,8 @@ const char *__strftime_fmt_1(char (*s)[100], size_t *l, int f, const struct tm *
 			*l = 0;
 			return "";
 		}
-		*l = snprintf(*s, sizeof *s, "%+.2d%.2d",
-			(tm->__tm_gmtoff)/3600,
-			abs(tm->__tm_gmtoff%3600)/60);
+		*l = snprintf(*s, sizeof *s, "%+.4ld",
+			tm->__tm_gmtoff/3600*100 + tm->__tm_gmtoff%3600/60);
 		return *s;
 	case 'Z':
 		if (tm->tm_isdst < 0) {
diff --git a/src/time/timespec_get.c b/src/time/timespec_get.c
index 03c5a77b..c423b825 100644
--- a/src/time/timespec_get.c
+++ b/src/time/timespec_get.c
@@ -6,7 +6,7 @@ int __clock_gettime(clockid_t, struct timespec *);
  * are considered erroneous. */
 int timespec_get(struct timespec * ts, int base)
 {
-	if (base != TIME_UTC) return 0;
+	if (base != 1) return 0;
 	int ret = __clock_gettime(CLOCK_REALTIME, ts);
 	return ret < 0 ? 0 : base;
 }
diff --git a/src/time/wcsftime.c b/src/time/wcsftime.c
index 638e64f6..23500cc8 100644
--- a/src/time/wcsftime.c
+++ b/src/time/wcsftime.c
@@ -4,7 +4,7 @@
 #include "locale_impl.h"
 #include "libc.h"
 
-const char *__strftime_fmt_1(char (*s)[100], size_t *l, int f, const struct tm *tm, locale_t loc);
+const char *__strftime_fmt_1(char (*s)[100], size_t *l, int f, const struct tm *tm, locale_t loc, int pad);
 
 size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, const struct tm *restrict tm, locale_t loc)
 {
@@ -14,7 +14,7 @@ size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, co
 	wchar_t *p;
 	const char *t_mb;
 	const wchar_t *t;
-	int plus;
+	int pad, plus;
 	unsigned long width;
 	for (l=0; l<n; f++) {
 		if (!*f) {
@@ -26,6 +26,8 @@ size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, co
 			continue;
 		}
 		f++;
+		pad = 0;
+		if (*f == '-' || *f == '_' || *f == '0') pad = *f++;
 		if ((plus = (*f == '+'))) f++;
 		width = wcstoul(f, &p, 10);
 		if (*p == 'C' || *p == 'F' || *p == 'G' || *p == 'Y') {
@@ -35,7 +37,7 @@ size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, co
 		}
 		f = p;
 		if (*f == 'E' || *f == 'O') f++;
-		t_mb = __strftime_fmt_1(&buf, &k, *f, tm, loc);
+		t_mb = __strftime_fmt_1(&buf, &k, *f, tm, loc, pad);
 		if (!t_mb) break;
 		k = mbstowcs(wbuf, t_mb, sizeof wbuf / sizeof *wbuf);
 		if (k == (size_t)-1) return 0;
diff --git a/src/unistd/getcwd.c b/src/unistd/getcwd.c
index 103fbbb5..f407ffe0 100644
--- a/src/unistd/getcwd.c
+++ b/src/unistd/getcwd.c
@@ -6,10 +6,10 @@
 
 char *getcwd(char *buf, size_t size)
 {
-	char tmp[PATH_MAX];
+	char tmp[buf ? 1 : PATH_MAX];
 	if (!buf) {
 		buf = tmp;
-		size = PATH_MAX;
+		size = sizeof tmp;
 	} else if (!size) {
 		errno = EINVAL;
 		return 0;
diff --git a/src/unistd/gethostname.c b/src/unistd/gethostname.c
index f984b7dd..633ef571 100644
--- a/src/unistd/gethostname.c
+++ b/src/unistd/gethostname.c
@@ -8,6 +8,6 @@ int gethostname(char *name, size_t len)
 	if (uname(&uts)) return -1;
 	if (len > sizeof uts.nodename) len = sizeof uts.nodename;
 	for (i=0; i<len && (name[i] = uts.nodename[i]); i++);
-	if (i==len) name[i-1] = 0;
+	if (i && i==len) name[i-1] = 0;
 	return 0;
 }
diff --git a/src/unistd/nice.c b/src/unistd/nice.c
index da569967..6c25c8c3 100644
--- a/src/unistd/nice.c
+++ b/src/unistd/nice.c
@@ -1,12 +1,16 @@
 #include <unistd.h>
 #include <sys/resource.h>
+#include <limits.h>
 #include "syscall.h"
 
 int nice(int inc)
 {
-#ifdef SYS_nice
-	return syscall(SYS_nice, inc);
-#else
-	return setpriority(PRIO_PROCESS, 0, getpriority(PRIO_PROCESS, 0)+inc);
-#endif
+	int prio = inc;
+	// Only query old priority if it can affect the result.
+	// This also avoids issues with integer overflow.
+	if (inc > -2*NZERO && inc < 2*NZERO)
+		prio += getpriority(PRIO_PROCESS, 0);
+	if (prio > NZERO-1) prio = NZERO-1;
+	if (prio < -NZERO) prio = -NZERO;
+	return setpriority(PRIO_PROCESS, 0, prio) ? -1 : prio;
 }
diff --git a/tools/musl-gcc.specs.sh b/tools/musl-gcc.specs.sh
index 294e24f7..30492574 100644
--- a/tools/musl-gcc.specs.sh
+++ b/tools/musl-gcc.specs.sh
@@ -17,10 +17,10 @@ cat <<EOF
 libgcc.a%s %:if-exists(libgcc_eh.a%s)
 
 *startfile:
-%{!shared: $libdir/%{pie:S}crt1.o} $libdir/crti.o %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}
+%{!shared: $libdir/Scrt1.o} $libdir/crti.o crtbeginS.o%s
 
 *endfile:
-%{shared|pie:crtendS.o%s;:crtend.o%s} $libdir/crtn.o
+crtendS.o%s $libdir/crtn.o
 
 *link:
 -dynamic-linker $ldso -nostdlib %{shared:-shared} %{static:-static} %{rdynamic:-export-dynamic}