diff options
| -rw-r--r-- | system/libucontext/APKBUILD | 12 | ||||
| -rw-r--r-- | system/libucontext/git.patch | 115 | ||||
| -rw-r--r-- | system/libucontext/powerpc.patch | 1121 | ||||
| -rw-r--r-- | system/libucontext/static.patch | 76 |
4 files changed, 123 insertions, 1201 deletions
diff --git a/system/libucontext/APKBUILD b/system/libucontext/APKBUILD index 93bc2b252..78b079435 100644 --- a/system/libucontext/APKBUILD +++ b/system/libucontext/APKBUILD @@ -1,17 +1,20 @@ # Maintainer: A. Wilcox <awilfox@adelielinux.org> pkgname=libucontext -pkgver=0.9.0 +pkgver=0.10 pkgrel=0 pkgdesc="Implementation of software-defined threading" -url="https://code.foxkit.us/adelie/libucontext/" +url=" " arch="all" license="ISC" depends="" makedepends="" subpackages="$pkgname-dev" -source="https://distfiles.adelielinux.org/source/libucontext/libucontext-$pkgver.tar.xz" +source="https://distfiles.dereferenced.org/libucontext/libucontext-$pkgver.tar.xz + git.patch + " case "$CTARGET_ARCH" in +aarch64_be) LIBUCONTEXT_ARCH="aarch64" ;; arm*) LIBUCONTEXT_ARCH="arm" ;; ppc64le) LIBUCONTEXT_ARCH="ppc64" ;; pmmx) LIBUCONTEXT_ARCH="x86" ;; @@ -30,4 +33,5 @@ package() { make ARCH="$LIBUCONTEXT_ARCH" DESTDIR="$pkgdir" install } -sha512sums="47ffa743e0b364d7a5d5ae633f89e83a7e3bbdf62a8a703a06a522c08b187b785548e8b8d58d53fc4fd984575f086794e74c12d40075326c6e88024e841550b6 libucontext-0.9.0.tar.xz" +sha512sums="ef04485f66edd94711a15681953aed12652ea3821036e6a5b10d1ba3c0371ffabd689c85ee2403bc6a94544932e64855d8f5412f46b50d8b5a934f70a771fcb1 libucontext-0.10.tar.xz +f3f5da2f76302fb3aeba8cca6e3485f264714ad12160e83ef92785a5f2a318cb4cea88e350df71dd6c976d075525361f36e67467ffb82b30fed6acee11be8095 git.patch" diff --git a/system/libucontext/git.patch b/system/libucontext/git.patch new file mode 100644 index 000000000..d42ee0803 --- /dev/null +++ b/system/libucontext/git.patch @@ -0,0 +1,115 @@ +From d7688a41df4cbe51e52bfebbab7d411548ed7738 Mon Sep 17 00:00:00 2001 +From: "A. Wilcox" <AWilcox@Wilcox-Tech.com> +Date: Mon, 30 Mar 2020 02:22:43 -0500 +Subject: [PATCH 1/3] README: Remove support section + +This is no longer a member of the gcompat family of projects; +remove the mention of that and the gcompat mailing list link. +--- + README.md | 5 ----- + 1 file changed, 5 deletions(-) + +diff --git a/README.md b/README.md +index 97a03b6..1db0516 100644 +--- a/README.md ++++ b/README.md +@@ -38,8 +38,3 @@ $ make ARCH=x86_64 check + $ make ARCH=x86_64 DESTDIR=out install + ``` + +- +-## support +- +-`libucontext` is offered as part of the `gcompat` project. Accordingly, please address all questions +-and bug reports to gcompat@lists.adelielinux.org. + +From e2178de76a7d3f41fed7cc5bef3e68eea623a72a Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Mon, 30 Mar 2020 08:21:20 +0000 +Subject: [PATCH 2/3] Makefile: Add LIBDIR variable + +This ensures that it can be installed into custom location and also + +Upstream-Status: Submitted +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- + Makefile | 11 ++++++----- + 1 file changed, 6 insertions(+), 5 deletions(-) + +diff --git a/Makefile b/Makefile +index a8dedc2..74ebdbf 100644 +--- a/Makefile ++++ b/Makefile +@@ -3,6 +3,7 @@ ifeq ($(ARCH),$(filter $(ARCH),i386 i686)) + override ARCH = x86 + endif + ++LIBDIR := /lib + CFLAGS = -ggdb3 -O2 -Wall -Iarch/${ARCH} -Iarch/common + + LIBUCONTEXT_C_SRC = $(wildcard arch/${ARCH}/*.c) +@@ -13,8 +14,8 @@ LIBUCONTEXT_SOVERSION = 0 + LIBUCONTEXT_NAME = libucontext.so + LIBUCONTEXT_STATIC_NAME = libucontext.a + LIBUCONTEXT_SONAME = libucontext.so.${LIBUCONTEXT_SOVERSION} +-LIBUCONTEXT_PATH = /lib/${LIBUCONTEXT_SONAME} +-LIBUCONTEXT_STATIC_PATH = /lib/${LIBUCONTEXT_STATIC_NAME} ++LIBUCONTEXT_PATH = ${LIBDIR}/${LIBUCONTEXT_SONAME} ++LIBUCONTEXT_STATIC_PATH = ${LIBDIR}/${LIBUCONTEXT_STATIC_NAME} + + all: ${LIBUCONTEXT_SONAME} ${LIBUCONTEXT_STATIC_NAME} + +@@ -39,9 +40,9 @@ clean: + ${LIBUCONTEXT_OBJ} test_libucontext + + install: all +- install -D -m755 ${LIBUCONTEXT_NAME} ${DESTDIR}/${LIBUCONTEXT_PATH} +- install -D -m664 ${LIBUCONTEXT_STATIC_NAME} ${DESTDIR}/${LIBUCONTEXT_STATIC_PATH} +- ln -sf ${LIBUCONTEXT_SONAME} ${DESTDIR}/lib/${LIBUCONTEXT_NAME} ++ install -D -m755 ${LIBUCONTEXT_NAME} ${DESTDIR}${LIBUCONTEXT_PATH} ++ install -D -m664 ${LIBUCONTEXT_STATIC_NAME} ${DESTDIR}${LIBUCONTEXT_STATIC_PATH} ++ ln -sf ${LIBUCONTEXT_SONAME} ${DESTDIR}${LIBDIR}/${LIBUCONTEXT_NAME} + + check: test_libucontext ${LIBUCONTEXT_SONAME} + env LD_LIBRARY_PATH=$(shell pwd) ./test_libucontext + +From 467ee2916d0eacbd32af10ead14e5d86e365fa2b Mon Sep 17 00:00:00 2001 +From: "A. Wilcox" <AWilcox@Wilcox-Tech.com> +Date: Mon, 30 Mar 2020 17:25:30 -0500 +Subject: [PATCH 3/3] x86: Update copyright statement +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Commit d0ccf2f96f12bfa040cc056f7dc26b3fd25c168d contains the makecontext +fix from Adélie commit aaeb73ea701388e55b7640e32509a5f6a57f6350[1], as +seen at AdelieLinux/libucontext@aaeb73ea – but it didn't include the +addition of my author line. + +The full commit text, for future documentation/reference, was: + +``` +x86: Write link pointer at correct stack offset + +It must come *after* the parameters, not *before*. +``` + +Fixes: d0ccf2f96f12 ("x86: modernize") +Signed-off-by: A. Wilcox <AWilcox@Wilcox-Tech.com> + +[1]: https://code.foxkit.us/adelie/libucontext/commit/aaeb73ea701388e55b7640e32509a5f6a57f6350 +--- + arch/x86/makecontext.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/arch/x86/makecontext.c b/arch/x86/makecontext.c +index ee9c2e2..bc8163c 100644 +--- a/arch/x86/makecontext.c ++++ b/arch/x86/makecontext.c +@@ -1,5 +1,6 @@ + /* + * Copyright (c) 2018 Ariadne Conill <ariadne@dereferenced.org> ++ * Copyright (c) 2019 A. Wilcox <awilfox@adelielinux.org> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above diff --git a/system/libucontext/powerpc.patch b/system/libucontext/powerpc.patch deleted file mode 100644 index ed7604d7b..000000000 --- a/system/libucontext/powerpc.patch +++ /dev/null @@ -1,1121 +0,0 @@ -From 94216c60c43a30e39fbc4f347450768699c6c77c Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Mon, 1 Apr 2019 23:02:12 -0500 -Subject: [PATCH] test ability to pass 10 args through makecontext - ---- - test_libucontext.c | 23 +++++++++++++++++++++-- - 1 file changed, 21 insertions(+), 2 deletions(-) - -diff --git a/test_libucontext.c b/test_libucontext.c -index 121cc3e..e5eac83 100644 ---- a/test_libucontext.c -+++ b/test_libucontext.c -@@ -6,13 +6,32 @@ - #include <stdio.h> - #include <ucontext.h> - #include <stdint.h> -+#include <stdlib.h> - #include <string.h> - - - static ucontext_t ctx[3]; - - --static void f1 (void) { -+static void check_arg(int actual, int expected) { -+ if (actual == expected) return; -+ fprintf(stderr, "argument has wrong value. got %d, expected %d.\n", actual, expected); -+ abort(); -+} -+ -+ -+static void f1 (int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) { -+ check_arg(a, 1); -+ check_arg(b, 2); -+ check_arg(c, 3); -+ check_arg(d, 4); -+ check_arg(e, 5); -+ check_arg(f, 6); -+ check_arg(g, 7); -+ check_arg(h, 8); -+ check_arg(i, 9); -+ check_arg(j, 10); -+ - printf("start f1\n"); - swapcontext(&ctx[1], &ctx[2]); - printf("finish f1\n"); -@@ -40,7 +59,7 @@ int main (int argc, const char *argv[]) { - ctx[1].uc_stack.ss_sp = st1; - ctx[1].uc_stack.ss_size = sizeof st1; - ctx[1].uc_link = &ctx[0]; -- makecontext(&ctx[1], f1, 0); -+ makecontext(&ctx[1], f1, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10); - - - getcontext(&ctx[2]); -From cb59e7ee957b389578a3f973484ae3198f6cfed1 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Mon, 1 Apr 2019 23:03:21 -0500 -Subject: [PATCH] test calls to getcontext without makecontext - ---- - test_libucontext.c | 12 ++++++++++++ - 1 file changed, 12 insertions(+) - -diff --git a/test_libucontext.c b/test_libucontext.c -index e5eac83..a4a9b4c 100644 ---- a/test_libucontext.c -+++ b/test_libucontext.c -@@ -48,6 +48,7 @@ static void f2 (void) { - int main (int argc, const char *argv[]) { - char st1[8192]; - char st2[8192]; -+ volatile int done = 0; - - - /* poison each coroutine's stack memory for debugging purposes */ -@@ -70,5 +71,16 @@ int main (int argc, const char *argv[]) { - - - swapcontext(&ctx[0], &ctx[2]); -+ -+ -+ /* test ability to use getcontext/setcontext without makecontext */ -+ getcontext(&ctx[1]); -+ printf("done = %d\n", done); -+ if (done++ == 0) setcontext(&ctx[1]); -+ if (done != 2) { -+ fprintf(stderr, "wrong value for done. got %d, expected 2\n", done); -+ abort(); -+ } -+ - return 0; - } -From b6a9b5e279123f16569e0fd9f8ff14ff04bed7a3 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 13:32:03 -0500 -Subject: [PATCH] ppc32: fix stack alignment - -The stack should be 16-byte aligned, not 8 mod 16. ---- - arch/ppc/makecontext.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index c562ea5..1b9efdf 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -37,7 +37,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - - sp = (greg_t *) ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); - sp -= (uc_link + 1); -- sp = (greg_t *) (((uintptr_t) sp & -16L) - 8); -+ sp = (greg_t *) ((uintptr_t) sp & -16L); - - ucp->uc_mcontext.gregs[REG_NIP] = (uintptr_t) func; - ucp->uc_mcontext.gregs[REG_LNK] = (uintptr_t) &__start_context; -From b9bd4045fb34f060d6cf37fc7da7ab13b91462de Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 13:35:00 -0500 -Subject: [PATCH] ppc32/64: fix back chain pointer - -The ABI states that sp[0] should point to the previous stack frame, or be -zero if there is no previous stack frame. makecontext previously set this -slot to point to the __start_context function, rather than to a valid -stack frame. ---- - arch/ppc/makecontext.c | 2 +- - arch/ppc64/makecontext.c | 2 +- - 2 files changed, 2 insertions(+), 2 deletions(-) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index 1b9efdf..729f465 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -44,7 +44,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - ucp->uc_mcontext.gregs[REG_R31] = (uintptr_t) ucp->uc_link; - ucp->uc_mcontext.gregs[REG_SP] = (uintptr_t) sp; - -- sp[0] = (uintptr_t) &__start_context; -+ sp[0] = 0; - sp[uc_link] = (uintptr_t) ucp->uc_link; - argp = &sp[2]; - -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index 9d6b998..91fb579 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -45,7 +45,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - ucp->uc_mcontext.gp_regs[REG_ENTRY] = (uintptr_t) func; - ucp->uc_mcontext.gp_regs[REG_R31] = (uintptr_t) ucp->uc_link; - -- sp[0] = (uintptr_t) &__start_context; -+ sp[0] = 0; - sp[uc_link] = (uintptr_t) ucp->uc_link; - argp = &sp[2]; - -From b500b054c7cf412a6042496afa08b4302f7ed929 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 13:38:36 -0500 -Subject: [PATCH] ppc32/64: don't store uc_link on the stack - -This was previously stored either in the CR (ppc64) or LR (ppc32) save -area of the stack, or to one of the parameter save slots. - -In either case, the saved value was unused. This value is also passed -to __start_context via r31, so there's no need to pass it on the stack. ---- - arch/ppc/makecontext.c | 6 ++---- - arch/ppc64/makecontext.c | 6 ++---- - 2 files changed, 4 insertions(+), 8 deletions(-) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index 729f465..2b7ea67 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -30,13 +30,12 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - greg_t *sp, *argp; - va_list va; - int i; -- unsigned int uc_link, stack_args; -+ unsigned int stack_args; - - stack_args = argc > 8 ? argc - 8 : 0; -- uc_link = stack_args + 1; - - sp = (greg_t *) ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); -- sp -= (uc_link + 1); -+ sp -= stack_args + 2; - sp = (greg_t *) ((uintptr_t) sp & -16L); - - ucp->uc_mcontext.gregs[REG_NIP] = (uintptr_t) func; -@@ -45,7 +44,6 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - ucp->uc_mcontext.gregs[REG_SP] = (uintptr_t) sp; - - sp[0] = 0; -- sp[uc_link] = (uintptr_t) ucp->uc_link; - argp = &sp[2]; - - va_start(va, argc); -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index 91fb579..b060371 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -30,13 +30,12 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - greg_t *sp, *argp; - va_list va; - int i; -- unsigned int uc_link, stack_args; -+ unsigned int stack_args; - - stack_args = argc > 8 ? argc - 8 : 0; -- uc_link = stack_args + 1; - - sp = (greg_t *) ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); -- sp -= (uc_link + 1); -+ sp -= stack_args + 2; - sp = (greg_t *) (((uintptr_t) sp & -16L)); - - ucp->uc_mcontext.gp_regs[REG_NIP] = (uintptr_t) func; -@@ -46,7 +45,6 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - ucp->uc_mcontext.gp_regs[REG_R31] = (uintptr_t) ucp->uc_link; - - sp[0] = 0; -- sp[uc_link] = (uintptr_t) ucp->uc_link; - argp = &sp[2]; - - va_start(va, argc); -From 55168fcb1809dde45c99450f1f3be27716c473db Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 13:57:53 -0500 -Subject: [PATCH] ppc32/64: simplify storage of stack parameters - -The switch statement is simpler as an if/else, and removing the argp -variable makes the code more symmetric between the register and stack -parameter cases. ---- - arch/ppc/makecontext.c | 24 ++++++------------------ - arch/ppc64/makecontext.c | 24 ++++++------------------ - 2 files changed, 12 insertions(+), 36 deletions(-) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index 2b7ea67..4a404a4 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -27,7 +27,7 @@ extern void __start_context(void); - void - __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - { -- greg_t *sp, *argp; -+ greg_t *sp; - va_list va; - int i; - unsigned int stack_args; -@@ -44,27 +44,15 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - ucp->uc_mcontext.gregs[REG_SP] = (uintptr_t) sp; - - sp[0] = 0; -- argp = &sp[2]; - - va_start(va, argc); - -- for (i = 0; i < argc; i++) -- switch (i) -- { -- case 0: -- case 1: -- case 2: -- case 3: -- case 4: -- case 5: -- case 6: -- case 7: -+ for (i = 0; i < argc; i++) { -+ if (i < 8) - ucp->uc_mcontext.gregs[i + 3] = va_arg (va, greg_t); -- break; -- default: -- *argp++ = va_arg (va, greg_t); -- break; -- } -+ else -+ sp[i-8 + 2] = va_arg (va, greg_t); -+ } - - va_end(va); - } -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index b060371..962f98a 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -27,7 +27,7 @@ extern void __start_context(void); - void - __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - { -- greg_t *sp, *argp; -+ greg_t *sp; - va_list va; - int i; - unsigned int stack_args; -@@ -45,27 +45,15 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - ucp->uc_mcontext.gp_regs[REG_R31] = (uintptr_t) ucp->uc_link; - - sp[0] = 0; -- argp = &sp[2]; - - va_start(va, argc); - -- for (i = 0; i < argc; i++) -- switch (i) -- { -- case 0: -- case 1: -- case 2: -- case 3: -- case 4: -- case 5: -- case 6: -- case 7: -+ for (i = 0; i < argc; i++) { -+ if (i < 8) - ucp->uc_mcontext.gp_regs[i + 3] = va_arg (va, greg_t); -- break; -- default: -- *argp++ = va_arg (va, greg_t); -- break; -- } -+ else -+ sp[i-8 + 2] = va_arg (va, greg_t); -+ } - - va_end(va); - } -From 8ea5f548b9146ffeea2074a33a06bbbd07a74402 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 14:01:10 -0500 -Subject: [PATCH] ppc64: fix makecontext with more than 8 parameters - -The ELFv2 ABI used on PPC64 differs from the ELFv1 ABI used on PPC32 here. -On PPC64, once there are any parameters that need to be passed on the -stack, space needs to be reserved on the stack to pass all parameters. -Parameters 0-7 are still only passed by register, but if the callee needs -to spill them, it can use the stack space reserved for the corresponding -parameter to do so. ---- - arch/ppc64/makecontext.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index 962f98a..ea980e9 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -32,7 +32,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - int i; - unsigned int stack_args; - -- stack_args = argc > 8 ? argc - 8 : 0; -+ stack_args = argc > 8 ? argc : 0; - - sp = (greg_t *) ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); - sp -= stack_args + 2; -@@ -52,7 +52,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - if (i < 8) - ucp->uc_mcontext.gp_regs[i + 3] = va_arg (va, greg_t); - else -- sp[i-8 + 2] = va_arg (va, greg_t); -+ sp[i + 2] = va_arg (va, greg_t); - } - - va_end(va); -From a00a05ce2950ca3b306f8ccc3e817ea8cd675015 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 14:03:47 -0500 -Subject: [PATCH] ppc64: fix incorrect position of parameters within stack - frame - -On PPC64, there are 4 register-sized stack slots below the parameter save -area, which is different from the 2 stack slots on PPC32. ---- - arch/ppc64/makecontext.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index ea980e9..a4c1bf9 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -35,7 +35,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - stack_args = argc > 8 ? argc : 0; - - sp = (greg_t *) ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); -- sp -= stack_args + 2; -+ sp -= stack_args + 4; - sp = (greg_t *) (((uintptr_t) sp & -16L)); - - ucp->uc_mcontext.gp_regs[REG_NIP] = (uintptr_t) func; -@@ -52,7 +52,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) - if (i < 8) - ucp->uc_mcontext.gp_regs[i + 3] = va_arg (va, greg_t); - else -- sp[i + 2] = va_arg (va, greg_t); -+ sp[i + 4] = va_arg (va, greg_t); - } - - va_end(va); -From 40d07758a5677e8869d7a62a499236bb6ed01897 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 14:09:25 -0500 -Subject: [PATCH] ppc32/64: correct signature of function parameter to - makecontext - -Because makecontext can pass a set of integer arguments to the provided -function, it is incorrect to require that this function accept no -parameters. ---- - arch/ppc/makecontext.c | 2 +- - arch/ppc64/makecontext.c | 2 +- - 2 files changed, 2 insertions(+), 2 deletions(-) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index 4a404a4..0633c0f 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -25,7 +25,7 @@ extern void __start_context(void); - - - void --__makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) -+__makecontext(ucontext_t *ucp, void (*func)(), int argc, ...) - { - greg_t *sp; - va_list va; -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index a4c1bf9..8a293b5 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -25,7 +25,7 @@ extern void __start_context(void); - - - void --__makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) -+__makecontext(ucontext_t *ucp, void (*func)(), int argc, ...) - { - greg_t *sp; - va_list va; -From edf69879eadaec0c72ba7ef5e7d2389946c6644b Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 14:09:39 -0500 -Subject: [PATCH] ppc64: remove unnecessary parentheses - ---- - arch/ppc64/makecontext.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index 8a293b5..84d390a 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -36,7 +36,7 @@ __makecontext(ucontext_t *ucp, void (*func)(), int argc, ...) - - sp = (greg_t *) ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); - sp -= stack_args + 4; -- sp = (greg_t *) (((uintptr_t) sp & -16L)); -+ sp = (greg_t *) ((uintptr_t) sp & -16L); - - ucp->uc_mcontext.gp_regs[REG_NIP] = (uintptr_t) func; - ucp->uc_mcontext.gp_regs[REG_LNK] = (uintptr_t) &__start_context; -From 29eac4259adfd85e0f4946a1080bb9e3f8c0cc2e Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 14:10:28 -0500 -Subject: [PATCH] ppc32/64: remove unused includes - ---- - arch/ppc/makecontext.c | 2 -- - arch/ppc64/makecontext.c | 2 -- - 2 files changed, 4 deletions(-) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index 0633c0f..7214a40 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -11,10 +11,8 @@ - */ - - #define _GNU_SOURCE --#include <stddef.h> - #include <stdarg.h> - #include <signal.h> --#include <string.h> - #include <stdint.h> - - -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index 84d390a..2650f56 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -11,10 +11,8 @@ - */ - - #define _GNU_SOURCE --#include <stddef.h> - #include <stdarg.h> - #include <signal.h> --#include <string.h> - #include <stdint.h> - - -From 90ff6330e62c8f836016668c9f769af365b257cb Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Fri, 5 Apr 2019 14:11:21 -0500 -Subject: [PATCH] ppc32/64: update copyright - ---- - arch/ppc/makecontext.c | 1 + - arch/ppc64/makecontext.c | 1 + - 2 files changed, 2 insertions(+) - -diff --git a/arch/ppc/makecontext.c b/arch/ppc/makecontext.c -index 7214a40..51c492f 100644 ---- a/arch/ppc/makecontext.c -+++ b/arch/ppc/makecontext.c -@@ -1,5 +1,6 @@ - /* - * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above -diff --git a/arch/ppc64/makecontext.c b/arch/ppc64/makecontext.c -index 2650f56..43da557 100644 ---- a/arch/ppc64/makecontext.c -+++ b/arch/ppc64/makecontext.c -@@ -1,5 +1,6 @@ - /* - * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above -From 2610c7faa7b9c4114d53bb659264a6be238cd2a3 Mon Sep 17 00:00:00 2001 -From: Bobby Bingham <koorogi@koorogi.info> -Date: Sat, 23 Feb 2019 17:12:37 -0600 -Subject: [PATCH] ppc32/64: rewrite get/set/swapcontext in assembly - -getcontext cannot be correctly implemented in C. - -If this calls another function, as it does to call syscall, it needs to -first spill its return address to the stack. If, after getcontext returns, -its caller then calls other functions, this saved return address can be -clobbered. When the context saved by getcontext is later restored, the -(now clobbered) return address will be reloaded from the stack, and the -second return from getcontext will return to the wrong location. - -Because the powerpc swapcontext syscall allows either the old context or -new context pointers to be null, it is usable for implementing all of -get/set/swapcontext. - -We therefore rewrite swapcontext in assembly, and get/setcontext as simple -assembly function wrappers around swapcontext. - -The one piece we keep in C is the code to check the return value of the -system call and to set errno. This code was actually unnecessary before -- -libc does this within syscall. However, now that the system call is made -directly in assembly, bypassing libc, it is truly necessary. Because errno -is thread-local and the details of how to set it can vary by libc, this -code remains written in C. ---- - Makefile | 10 +---- - README.md | 2 +- - arch/ppc/getcontext.S | 20 +++++++++ - arch/ppc/{getcontext.c => retfromsyscall.c} | 30 +++---------- - arch/ppc/setcontext.S | 21 +++++++++ - arch/ppc/setcontext.c | 45 ------------------- - arch/ppc/swapcontext.S | 23 ++++++++++ - arch/ppc/swapcontext.c | 45 ------------------- - arch/ppc64/getcontext.S | 25 +++++++++++ - arch/ppc64/{getcontext.c => retfromsyscall.c} | 30 +++---------- - arch/ppc64/setcontext.S | 26 +++++++++++ - arch/ppc64/setcontext.c | 45 ------------------- - arch/ppc64/swapcontext.S | 28 ++++++++++++ - arch/ppc64/swapcontext.c | 45 ------------------- - 14 files changed, 156 insertions(+), 239 deletions(-) - create mode 100644 arch/ppc/getcontext.S - rename arch/ppc/{getcontext.c => retfromsyscall.c} (53%) - create mode 100644 arch/ppc/setcontext.S - delete mode 100644 arch/ppc/setcontext.c - create mode 100644 arch/ppc/swapcontext.S - delete mode 100644 arch/ppc/swapcontext.c - create mode 100644 arch/ppc64/getcontext.S - rename arch/ppc64/{getcontext.c => retfromsyscall.c} (53%) - create mode 100644 arch/ppc64/setcontext.S - delete mode 100644 arch/ppc64/setcontext.c - create mode 100644 arch/ppc64/swapcontext.S - delete mode 100644 arch/ppc64/swapcontext.c - -diff --git a/Makefile b/Makefile -index 51365a3..d6ff1b0 100644 ---- a/Makefile -+++ b/Makefile -@@ -2,14 +2,8 @@ ARCH := $(shell uname -m) - - CFLAGS = -ggdb3 -O2 -Wall -Iarch/${ARCH} - --LIBUCONTEXT_C_SRC = \ -- arch/${ARCH}/makecontext.c -- --LIBUCONTEXT_S_SRC = \ -- arch/${ARCH}/getcontext.S \ -- arch/${ARCH}/setcontext.S \ -- arch/${ARCH}/swapcontext.S \ -- arch/${ARCH}/startcontext.S -+LIBUCONTEXT_C_SRC = $(wildcard arch/${ARCH}/*.c) -+LIBUCONTEXT_S_SRC = $(wildcard arch/${ARCH}/*.S) - - LIBUCONTEXT_OBJ = ${LIBUCONTEXT_C_SRC:.c=.o} ${LIBUCONTEXT_S_SRC:.S=.o} - LIBUCONTEXT_SOVERSION = 0 -diff --git a/README.md b/README.md -index 6bd4493..27d3d0b 100644 ---- a/README.md -+++ b/README.md -@@ -19,7 +19,7 @@ Right now these archs are supported and should work on bare metal: - * aarch64 - * s390x - --These archs require kernel assistance and use a syscall (the only assembly is the trampoline): -+These archs require kernel assistance and use a syscall: - - * ppc - * ppc64 (ELFv2 ABI spec only, ELFv1 not supported) -diff --git a/arch/ppc/getcontext.S b/arch/ppc/getcontext.S -new file mode 100644 -index 0000000..beffaf5 ---- /dev/null -+++ b/arch/ppc/getcontext.S -@@ -0,0 +1,20 @@ -+/* -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * This software is provided 'as is' and without any warranty, express or -+ * implied. In no event shall the authors be liable for any damages arising -+ * from the use of this software. -+ */ -+ -+.global __getcontext -+.hidden __swapcontext -+__getcontext: -+ li 4, 0 -+ b __swapcontext@local -+ -+.weak getcontext -+getcontext = __getcontext -diff --git a/arch/ppc/getcontext.c b/arch/ppc/retfromsyscall.c -similarity index 53% -rename from arch/ppc/getcontext.c -rename to arch/ppc/retfromsyscall.c -index 5da9dfb..3ad43c0 100644 ---- a/arch/ppc/getcontext.c -+++ b/arch/ppc/retfromsyscall.c -@@ -1,5 +1,6 @@ - /* - * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above -@@ -10,36 +11,15 @@ - * from the use of this software. - */ - --#define _GNU_SOURCE --#include <stddef.h> --#include <stdarg.h> --#include <signal.h> --#include <string.h> --#include <stdint.h> - #include <errno.h> --#include <unistd.h> --#include <sys/syscall.h> - -- --int --__getcontext(ucontext_t *ucp) -+__attribute__ ((visibility ("hidden"))) -+int __retfromsyscall(long retval) - { --#ifdef SYS_swapcontext -- int r; -- -- r = syscall(SYS_swapcontext, ucp, NULL, sizeof(ucontext_t)); -- if (r < 0) -- { -- errno = -r; -+ if (retval < 0) { -+ errno = -retval; - return -1; - } -- - return 0; --#else -- errno = ENOSYS; -- return -1; --#endif - } - -- --extern __typeof(__getcontext) getcontext __attribute__((weak, __alias__("__getcontext"))); -diff --git a/arch/ppc/setcontext.S b/arch/ppc/setcontext.S -new file mode 100644 -index 0000000..89e6de0 ---- /dev/null -+++ b/arch/ppc/setcontext.S -@@ -0,0 +1,21 @@ -+/* -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * This software is provided 'as is' and without any warranty, express or -+ * implied. In no event shall the authors be liable for any damages arising -+ * from the use of this software. -+ */ -+ -+.global __setcontext -+.hidden __swapcontext -+__setcontext: -+ mr 4, 3 -+ li 3, 0 -+ b __swapcontext@local -+ -+.weak setcontext -+setcontext = __setcontext -diff --git a/arch/ppc/setcontext.c b/arch/ppc/setcontext.c -deleted file mode 100644 -index 59c65b4..0000000 ---- a/arch/ppc/setcontext.c -+++ /dev/null -@@ -1,45 +0,0 @@ --/* -- * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -- * -- * Permission to use, copy, modify, and/or distribute this software for any -- * purpose with or without fee is hereby granted, provided that the above -- * copyright notice and this permission notice appear in all copies. -- * -- * This software is provided 'as is' and without any warranty, express or -- * implied. In no event shall the authors be liable for any damages arising -- * from the use of this software. -- */ -- --#define _GNU_SOURCE --#include <stddef.h> --#include <stdarg.h> --#include <signal.h> --#include <string.h> --#include <stdint.h> --#include <errno.h> --#include <unistd.h> --#include <sys/syscall.h> -- -- --int --__setcontext(const ucontext_t *ucp) --{ --#ifdef SYS_swapcontext -- int r; -- -- r = syscall(SYS_swapcontext, NULL, (void *) ucp, sizeof(ucontext_t)); -- if (r < 0) -- { -- errno = -r; -- return -1; -- } -- -- return r; --#else -- errno = ENOSYS; -- return -1; --#endif --} -- -- --extern __typeof(__setcontext) setcontext __attribute__((weak, __alias__("__setcontext"))); -diff --git a/arch/ppc/swapcontext.S b/arch/ppc/swapcontext.S -new file mode 100644 -index 0000000..24b6655 ---- /dev/null -+++ b/arch/ppc/swapcontext.S -@@ -0,0 +1,23 @@ -+/* -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * This software is provided 'as is' and without any warranty, express or -+ * implied. In no event shall the authors be liable for any damages arising -+ * from the use of this software. -+ */ -+ -+.global __swapcontext -+__swapcontext: -+ li 0, 249 # SYS_swapcontext -+ li 5, 1184 # sizeof(ucontext_t) -+ sc -+ -+.hidden __retfromsyscall -+ b __retfromsyscall@local -+ -+.weak swapcontext -+swapcontext = __swapcontext -diff --git a/arch/ppc/swapcontext.c b/arch/ppc/swapcontext.c -deleted file mode 100644 -index af14bc2..0000000 ---- a/arch/ppc/swapcontext.c -+++ /dev/null -@@ -1,45 +0,0 @@ --/* -- * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -- * -- * Permission to use, copy, modify, and/or distribute this software for any -- * purpose with or without fee is hereby granted, provided that the above -- * copyright notice and this permission notice appear in all copies. -- * -- * This software is provided 'as is' and without any warranty, express or -- * implied. In no event shall the authors be liable for any damages arising -- * from the use of this software. -- */ -- --#define _GNU_SOURCE --#include <stddef.h> --#include <stdarg.h> --#include <signal.h> --#include <string.h> --#include <stdint.h> --#include <errno.h> --#include <unistd.h> --#include <sys/syscall.h> -- -- --int --__swapcontext(ucontext_t *oucp, const ucontext_t *ucp) --{ --#ifdef SYS_swapcontext -- int r; -- -- r = syscall(SYS_swapcontext, oucp, ucp, sizeof(ucontext_t)); -- if (r < 0) -- { -- errno = -r; -- return -1; -- } -- -- return r; --#else -- errno = ENOSYS; -- return -1; --#endif --} -- -- --extern __typeof(__swapcontext) swapcontext __attribute__((weak, __alias__("__swapcontext"))); -diff --git a/arch/ppc64/getcontext.S b/arch/ppc64/getcontext.S -new file mode 100644 -index 0000000..935edd2 ---- /dev/null -+++ b/arch/ppc64/getcontext.S -@@ -0,0 +1,25 @@ -+/* -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * This software is provided 'as is' and without any warranty, express or -+ * implied. In no event shall the authors be liable for any damages arising -+ * from the use of this software. -+ */ -+ -+.global __getcontext -+.hidden __swapcontext -+__getcontext: -+ addis 2, 12, .TOC.-__getcontext@ha -+ addi 2, 12, .TOC.-__getcontext@l -+ -+ .localentry __getcontext,.-__getcontext -+ -+ li 4, 0 -+ b __swapcontext -+ -+.weak getcontext -+getcontext = __getcontext -diff --git a/arch/ppc64/getcontext.c b/arch/ppc64/retfromsyscall.c -similarity index 53% -rename from arch/ppc64/getcontext.c -rename to arch/ppc64/retfromsyscall.c -index 5da9dfb..3ad43c0 100644 ---- a/arch/ppc64/getcontext.c -+++ b/arch/ppc64/retfromsyscall.c -@@ -1,5 +1,6 @@ - /* - * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above -@@ -10,36 +11,15 @@ - * from the use of this software. - */ - --#define _GNU_SOURCE --#include <stddef.h> --#include <stdarg.h> --#include <signal.h> --#include <string.h> --#include <stdint.h> - #include <errno.h> --#include <unistd.h> --#include <sys/syscall.h> - -- --int --__getcontext(ucontext_t *ucp) -+__attribute__ ((visibility ("hidden"))) -+int __retfromsyscall(long retval) - { --#ifdef SYS_swapcontext -- int r; -- -- r = syscall(SYS_swapcontext, ucp, NULL, sizeof(ucontext_t)); -- if (r < 0) -- { -- errno = -r; -+ if (retval < 0) { -+ errno = -retval; - return -1; - } -- - return 0; --#else -- errno = ENOSYS; -- return -1; --#endif - } - -- --extern __typeof(__getcontext) getcontext __attribute__((weak, __alias__("__getcontext"))); -diff --git a/arch/ppc64/setcontext.S b/arch/ppc64/setcontext.S -new file mode 100644 -index 0000000..5a0cde3 ---- /dev/null -+++ b/arch/ppc64/setcontext.S -@@ -0,0 +1,26 @@ -+/* -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * This software is provided 'as is' and without any warranty, express or -+ * implied. In no event shall the authors be liable for any damages arising -+ * from the use of this software. -+ */ -+ -+.global __setcontext -+.hidden __swapcontext -+__setcontext: -+ addis 2, 12, .TOC.-__setcontext@ha -+ addi 2, 12, .TOC.-__setcontext@l -+ -+ .localentry __setcontext,.-__setcontext -+ -+ mr 4, 3 -+ li 3, 0 -+ b __swapcontext -+ -+.weak setcontext -+setcontext = __setcontext -diff --git a/arch/ppc64/setcontext.c b/arch/ppc64/setcontext.c -deleted file mode 100644 -index 59c65b4..0000000 ---- a/arch/ppc64/setcontext.c -+++ /dev/null -@@ -1,45 +0,0 @@ --/* -- * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -- * -- * Permission to use, copy, modify, and/or distribute this software for any -- * purpose with or without fee is hereby granted, provided that the above -- * copyright notice and this permission notice appear in all copies. -- * -- * This software is provided 'as is' and without any warranty, express or -- * implied. In no event shall the authors be liable for any damages arising -- * from the use of this software. -- */ -- --#define _GNU_SOURCE --#include <stddef.h> --#include <stdarg.h> --#include <signal.h> --#include <string.h> --#include <stdint.h> --#include <errno.h> --#include <unistd.h> --#include <sys/syscall.h> -- -- --int --__setcontext(const ucontext_t *ucp) --{ --#ifdef SYS_swapcontext -- int r; -- -- r = syscall(SYS_swapcontext, NULL, (void *) ucp, sizeof(ucontext_t)); -- if (r < 0) -- { -- errno = -r; -- return -1; -- } -- -- return r; --#else -- errno = ENOSYS; -- return -1; --#endif --} -- -- --extern __typeof(__setcontext) setcontext __attribute__((weak, __alias__("__setcontext"))); -diff --git a/arch/ppc64/swapcontext.S b/arch/ppc64/swapcontext.S -new file mode 100644 -index 0000000..982537a ---- /dev/null -+++ b/arch/ppc64/swapcontext.S -@@ -0,0 +1,28 @@ -+/* -+ * Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info> -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * This software is provided 'as is' and without any warranty, express or -+ * implied. In no event shall the authors be liable for any damages arising -+ * from the use of this software. -+ */ -+ -+.global __swapcontext -+__swapcontext: -+ addis 2, 12, .TOC.-__swapcontext@ha -+ addi 2, 12, .TOC.-__swapcontext@l -+ -+ .localentry __swapcontext,.-__swapcontext -+ -+ li 0, 249 # SYS_swapcontext -+ li 5, 1696 # sizeof(ucontext_t) -+ sc -+ -+.hidden __retfromsyscall -+ b __retfromsyscall -+ -+.weak swapcontext -+swapcontext = __swapcontext -diff --git a/arch/ppc64/swapcontext.c b/arch/ppc64/swapcontext.c -deleted file mode 100644 -index af14bc2..0000000 ---- a/arch/ppc64/swapcontext.c -+++ /dev/null -@@ -1,45 +0,0 @@ --/* -- * Copyright (c) 2018 William Pitcock <nenolod@dereferenced.org> -- * -- * Permission to use, copy, modify, and/or distribute this software for any -- * purpose with or without fee is hereby granted, provided that the above -- * copyright notice and this permission notice appear in all copies. -- * -- * This software is provided 'as is' and without any warranty, express or -- * implied. In no event shall the authors be liable for any damages arising -- * from the use of this software. -- */ -- --#define _GNU_SOURCE --#include <stddef.h> --#include <stdarg.h> --#include <signal.h> --#include <string.h> --#include <stdint.h> --#include <errno.h> --#include <unistd.h> --#include <sys/syscall.h> -- -- --int --__swapcontext(ucontext_t *oucp, const ucontext_t *ucp) --{ --#ifdef SYS_swapcontext -- int r; -- -- r = syscall(SYS_swapcontext, oucp, ucp, sizeof(ucontext_t)); -- if (r < 0) -- { -- errno = -r; -- return -1; -- } -- -- return r; --#else -- errno = ENOSYS; -- return -1; --#endif --} -- -- --extern __typeof(__swapcontext) swapcontext __attribute__((weak, __alias__("__swapcontext"))); diff --git a/system/libucontext/static.patch b/system/libucontext/static.patch deleted file mode 100644 index a51e55f64..000000000 --- a/system/libucontext/static.patch +++ /dev/null @@ -1,76 +0,0 @@ -From 9cc1a2c0e62c75dc7afd20d5e337953f44693b70 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Gabriel=20Iva=C8=99cu?= <givascu@bitdefender.com> -Date: Tue, 9 Apr 2019 16:07:39 +0300 -Subject: [PATCH] Build static library too - ---- - Makefile | 6 +++++- - 1 file changed, 5 insertions(+), 1 deletion(-) - -diff --git a/Makefile b/Makefile -index d6ff1b0..d81153c 100644 ---- a/Makefile -+++ b/Makefile -@@ -8,10 +8,14 @@ LIBUCONTEXT_S_SRC = $(wildcard arch/${ARCH}/*.S) - LIBUCONTEXT_OBJ = ${LIBUCONTEXT_C_SRC:.c=.o} ${LIBUCONTEXT_S_SRC:.S=.o} - LIBUCONTEXT_SOVERSION = 0 - LIBUCONTEXT_NAME = libucontext.so -+LIBUCONTEXT_STATIC_NAME = libucontext.a - LIBUCONTEXT_SONAME = libucontext.so.${LIBUCONTEXT_SOVERSION} - LIBUCONTEXT_PATH = /lib/${LIBUCONTEXT_SONAME} - --all: ${LIBUCONTEXT_SONAME} -+all: ${LIBUCONTEXT_SONAME} ${LIBUCONTEXT_STATIC_NAME} -+ -+${LIBUCONTEXT_STATIC_NAME}: ${LIBUCONTEXT_OBJ} -+ $(AR) rcs ${LIBUCONTEXT_STATIC_NAME} ${LIBUCONTEXT_OBJ} - - ${LIBUCONTEXT_NAME}: ${LIBUCONTEXT_OBJ} - $(CC) -o ${LIBUCONTEXT_NAME} -Wl,-soname,${LIBUCONTEXT_SONAME} \ -From 2e15b383272fafbbb92882990b8f339e2c6888d2 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Gabriel=20Iva=C8=99cu?= <givascu@bitdefender.com> -Date: Fri, 12 Apr 2019 10:48:24 +0300 -Subject: [PATCH] Makefile: Handle static library at clean/install - ---- - .gitignore | 1 + - Makefile | 5 ++++- - 2 files changed, 5 insertions(+), 1 deletion(-) - -diff --git a/.gitignore b/.gitignore -index 4fb95ca..d2e350f 100644 ---- a/.gitignore -+++ b/.gitignore -@@ -34,5 +34,6 @@ Makefile.in - - *.o - test_libucontext -+libucontext.a - libucontext.so - libucontext.so.* -diff --git a/Makefile b/Makefile -index d81153c..8a605fd 100644 ---- a/Makefile -+++ b/Makefile -@@ -11,6 +11,7 @@ LIBUCONTEXT_NAME = libucontext.so - LIBUCONTEXT_STATIC_NAME = libucontext.a - LIBUCONTEXT_SONAME = libucontext.so.${LIBUCONTEXT_SOVERSION} - LIBUCONTEXT_PATH = /lib/${LIBUCONTEXT_SONAME} -+LIBUCONTEXT_STATIC_PATH = /lib/${LIBUCONTEXT_STATIC_NAME} - - all: ${LIBUCONTEXT_SONAME} ${LIBUCONTEXT_STATIC_NAME} - -@@ -31,10 +32,12 @@ ${LIBUCONTEXT_SONAME}: ${LIBUCONTEXT_NAME} - $(CC) -fPIC -DPIC ${CFLAGS} ${CPPFLAGS} -c -o $@ $< - - clean: -- rm -f ${LIBUCONTEXT_NAME} ${LIBUCONTEXT_SONAME} ${LIBUCONTEXT_OBJ} test_libucontext -+ rm -f ${LIBUCONTEXT_NAME} ${LIBUCONTEXT_SONAME} ${LIBUCONTEXT_STATIC_NAME} \ -+ ${LIBUCONTEXT_OBJ} test_libucontext - - install: all - install -D -m755 ${LIBUCONTEXT_NAME} ${DESTDIR}/${LIBUCONTEXT_PATH} -+ install -D -m664 ${LIBUCONTEXT_STATIC_NAME} ${DESTDIR}/${LIBUCONTEXT_STATIC_PATH} - ln -sf ${LIBUCONTEXT_SONAME} ${DESTDIR}/lib/${LIBUCONTEXT_NAME} - - check: test_libucontext ${LIBUCONTEXT_SONAME} |