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authorrofl0r <retnyg@gmx.net>2014-01-07 22:43:34 +0100
committerrofl0r <retnyg@gmx.net>2014-02-23 11:07:18 +0100
commit323272db175204b951f119dae4bd99ef05e20f13 (patch)
tree70329156d5189294b1e9e7f9c7c326924ad62e35 /src
parent0f169cbb79c39a5b15f7a27d9283cdeb6e122b8f (diff)
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import vanilla x86_64 code as x32
Diffstat (limited to 'src')
-rw-r--r--src/fenv/x32/fenv.s97
-rw-r--r--src/internal/x32/syscall.s12
-rw-r--r--src/ldso/x32/dlsym.s6
-rw-r--r--src/ldso/x32/start.s16
-rw-r--r--src/math/x32/__invtrigl.s0
-rw-r--r--src/math/x32/acosl.s16
-rw-r--r--src/math/x32/asinl.s12
-rw-r--r--src/math/x32/atan2l.s7
-rw-r--r--src/math/x32/atanl.s7
-rw-r--r--src/math/x32/ceill.s1
-rw-r--r--src/math/x32/exp2l.s90
-rw-r--r--src/math/x32/expl.s101
-rw-r--r--src/math/x32/expm1l.s1
-rw-r--r--src/math/x32/fabs.s9
-rw-r--r--src/math/x32/fabsf.s7
-rw-r--r--src/math/x32/fabsl.s6
-rw-r--r--src/math/x32/floorl.s27
-rw-r--r--src/math/x32/fmodl.s11
-rw-r--r--src/math/x32/llrint.s5
-rw-r--r--src/math/x32/llrintf.s5
-rw-r--r--src/math/x32/llrintl.s7
-rw-r--r--src/math/x32/log10l.s7
-rw-r--r--src/math/x32/log1pl.s15
-rw-r--r--src/math/x32/log2l.s7
-rw-r--r--src/math/x32/logl.s7
-rw-r--r--src/math/x32/lrint.s5
-rw-r--r--src/math/x32/lrintf.s5
-rw-r--r--src/math/x32/lrintl.s7
-rw-r--r--src/math/x32/remainderl.s11
-rw-r--r--src/math/x32/rintl.s6
-rw-r--r--src/math/x32/sqrt.s4
-rw-r--r--src/math/x32/sqrtf.s4
-rw-r--r--src/math/x32/sqrtl.s5
-rw-r--r--src/math/x32/truncl.s1
-rw-r--r--src/process/x32/vfork.s12
-rw-r--r--src/setjmp/x32/longjmp.s22
-rw-r--r--src/setjmp/x32/setjmp.s22
-rw-r--r--src/signal/x32/restore.s8
-rw-r--r--src/signal/x32/sigsetjmp.s14
-rw-r--r--src/thread/x32/__set_thread_area.s10
-rw-r--r--src/thread/x32/__unmapself.s10
-rw-r--r--src/thread/x32/clone.s27
-rw-r--r--src/thread/x32/syscall_cp.s23
43 files changed, 675 insertions, 0 deletions
diff --git a/src/fenv/x32/fenv.s b/src/fenv/x32/fenv.s
new file mode 100644
index 00000000..b5aeaf4f
--- /dev/null
+++ b/src/fenv/x32/fenv.s
@@ -0,0 +1,97 @@
+.global feclearexcept
+.type feclearexcept,@function
+feclearexcept:
+ # maintain exceptions in the sse mxcsr, clear x87 exceptions
+ mov %edi,%ecx
+ and $0x3f,%ecx
+ fnstsw %ax
+ test %eax,%ecx
+ jz 1f
+ fnclex
+1: stmxcsr -8(%rsp)
+ and $0x3f,%eax
+ or %eax,-8(%rsp)
+ test %ecx,-8(%rsp)
+ jz 1f
+ not %ecx
+ and %ecx,-8(%rsp)
+ ldmxcsr -8(%rsp)
+1: xor %eax,%eax
+ ret
+
+.global feraiseexcept
+.type feraiseexcept,@function
+feraiseexcept:
+ and $0x3f,%edi
+ stmxcsr -8(%rsp)
+ or %edi,-8(%rsp)
+ ldmxcsr -8(%rsp)
+ xor %eax,%eax
+ ret
+
+.global __fesetround
+.type __fesetround,@function
+__fesetround:
+ push %rax
+ xor %eax,%eax
+ mov %edi,%ecx
+ fnstcw (%rsp)
+ andb $0xf3,1(%rsp)
+ or %ch,1(%rsp)
+ fldcw (%rsp)
+ stmxcsr (%rsp)
+ shl $3,%ch
+ andb $0x9f,1(%rsp)
+ or %ch,1(%rsp)
+ ldmxcsr (%rsp)
+ pop %rcx
+ ret
+
+.global fegetround
+.type fegetround,@function
+fegetround:
+ push %rax
+ stmxcsr (%rsp)
+ pop %rax
+ shr $3,%eax
+ and $0xc00,%eax
+ ret
+
+.global fegetenv
+.type fegetenv,@function
+fegetenv:
+ xor %eax,%eax
+ fnstenv (%rdi)
+ stmxcsr 28(%rdi)
+ ret
+
+.global fesetenv
+.type fesetenv,@function
+fesetenv:
+ xor %eax,%eax
+ inc %rdi
+ jz 1f
+ fldenv -1(%rdi)
+ ldmxcsr 27(%rdi)
+ ret
+1: push %rax
+ push %rax
+ pushq $0xffff
+ pushq $0x37f
+ fldenv (%rsp)
+ pushq $0x1f80
+ ldmxcsr (%rsp)
+ add $40,%rsp
+ ret
+
+.global fetestexcept
+.type fetestexcept,@function
+fetestexcept:
+ and $0x3f,%edi
+ push %rax
+ stmxcsr (%rsp)
+ pop %rsi
+ fnstsw %ax
+ or %esi,%eax
+ and %edi,%eax
+ ret
diff --git a/src/internal/x32/syscall.s b/src/internal/x32/syscall.s
new file mode 100644
index 00000000..6e0db09c
--- /dev/null
+++ b/src/internal/x32/syscall.s
@@ -0,0 +1,12 @@
+.global __syscall
+.type __syscall,@function
+__syscall:
+ movq %rdi,%rax
+ movq %rsi,%rdi
+ movq %rdx,%rsi
+ movq %rcx,%rdx
+ movq %r8,%r10
+ movq %r9,%r8
+ movq 8(%rsp),%r9
+ syscall
+ ret
diff --git a/src/ldso/x32/dlsym.s b/src/ldso/x32/dlsym.s
new file mode 100644
index 00000000..3c16616a
--- /dev/null
+++ b/src/ldso/x32/dlsym.s
@@ -0,0 +1,6 @@
+.text
+.global dlsym
+.type dlsym,@function
+dlsym:
+ mov (%rsp),%rdx
+ jmp __dlsym
diff --git a/src/ldso/x32/start.s b/src/ldso/x32/start.s
new file mode 100644
index 00000000..80c1d08d
--- /dev/null
+++ b/src/ldso/x32/start.s
@@ -0,0 +1,16 @@
+.text
+.global _start
+_start:
+ mov (%rsp),%rdi
+ lea 8(%rsp),%rsi
+ call __dynlink
+ pop %rdi
+1: dec %edi
+ pop %rsi
+ cmp $-1,%rsi
+ jz 1b
+ inc %edi
+ push %rsi
+ push %rdi
+ xor %edx,%edx
+ jmp *%rax
diff --git a/src/math/x32/__invtrigl.s b/src/math/x32/__invtrigl.s
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/src/math/x32/__invtrigl.s
diff --git a/src/math/x32/acosl.s b/src/math/x32/acosl.s
new file mode 100644
index 00000000..88e01b49
--- /dev/null
+++ b/src/math/x32/acosl.s
@@ -0,0 +1,16 @@
+# see ../i386/acos.s
+
+.global acosl
+.type acosl,@function
+acosl:
+ fldt 8(%rsp)
+1: fld %st(0)
+ fld1
+ fsub %st(0),%st(1)
+ fadd %st(2)
+ fmulp
+ fsqrt
+ fabs
+ fxch %st(1)
+ fpatan
+ ret
diff --git a/src/math/x32/asinl.s b/src/math/x32/asinl.s
new file mode 100644
index 00000000..ed212d9a
--- /dev/null
+++ b/src/math/x32/asinl.s
@@ -0,0 +1,12 @@
+.global asinl
+.type asinl,@function
+asinl:
+ fldt 8(%rsp)
+1: fld %st(0)
+ fld1
+ fsub %st(0),%st(1)
+ fadd %st(2)
+ fmulp
+ fsqrt
+ fpatan
+ ret
diff --git a/src/math/x32/atan2l.s b/src/math/x32/atan2l.s
new file mode 100644
index 00000000..e5f0a3de
--- /dev/null
+++ b/src/math/x32/atan2l.s
@@ -0,0 +1,7 @@
+.global atan2l
+.type atan2l,@function
+atan2l:
+ fldt 8(%rsp)
+ fldt 24(%rsp)
+ fpatan
+ ret
diff --git a/src/math/x32/atanl.s b/src/math/x32/atanl.s
new file mode 100644
index 00000000..df76de5d
--- /dev/null
+++ b/src/math/x32/atanl.s
@@ -0,0 +1,7 @@
+.global atanl
+.type atanl,@function
+atanl:
+ fldt 8(%rsp)
+ fld1
+ fpatan
+ ret
diff --git a/src/math/x32/ceill.s b/src/math/x32/ceill.s
new file mode 100644
index 00000000..f5cfa3b3
--- /dev/null
+++ b/src/math/x32/ceill.s
@@ -0,0 +1 @@
+# see floorl.s
diff --git a/src/math/x32/exp2l.s b/src/math/x32/exp2l.s
new file mode 100644
index 00000000..0d6cd563
--- /dev/null
+++ b/src/math/x32/exp2l.s
@@ -0,0 +1,90 @@
+.global expm1l
+.type expm1l,@function
+expm1l:
+ fldt 8(%rsp)
+ fldl2e
+ fmulp
+ movl $0xc2820000,-4(%rsp)
+ flds -4(%rsp)
+ fucomp %st(1)
+ fnstsw %ax
+ sahf
+ fld1
+ jb 1f
+ # x*log2e <= -65, return -1 without underflow
+ fstp %st(1)
+ fchs
+ ret
+1: fld %st(1)
+ fabs
+ fucom %st(1)
+ fnstsw %ax
+ fstp %st(0)
+ fstp %st(0)
+ sahf
+ ja 1f
+ f2xm1
+ ret
+1: push %rax
+ call 1f
+ pop %rax
+ fld1
+ fsubrp
+ ret
+
+.global exp2l
+.type exp2l,@function
+exp2l:
+ fldt 8(%rsp)
+1: fld %st(0)
+ sub $16,%rsp
+ fstpt (%rsp)
+ mov 8(%rsp),%ax
+ and $0x7fff,%ax
+ cmp $0x3fff+13,%ax
+ jb 4f # |x| < 8192
+ cmp $0x3fff+15,%ax
+ jae 3f # |x| >= 32768
+ fsts (%rsp)
+ cmpl $0xc67ff800,(%rsp)
+ jb 2f # x > -16382
+ movl $0x5f000000,(%rsp)
+ flds (%rsp) # 0x1p63
+ fld %st(1)
+ fsub %st(1)
+ faddp
+ fucomp %st(1)
+ fnstsw
+ sahf
+ je 2f # x - 0x1p63 + 0x1p63 == x
+ movl $1,(%rsp)
+ flds (%rsp) # 0x1p-149
+ fdiv %st(1)
+ fstps (%rsp) # raise underflow
+2: fld1
+ fld %st(1)
+ frndint
+ fxch %st(2)
+ fsub %st(2) # st(0)=x-rint(x), st(1)=1, st(2)=rint(x)
+ f2xm1
+ faddp # 2^(x-rint(x))
+1: fscale
+ fstp %st(1)
+ add $16,%rsp
+ ret
+3: xor %eax,%eax
+4: cmp $0x3fff-64,%ax
+ fld1
+ jb 1b # |x| < 0x1p-64
+ fstpt (%rsp)
+ fistl 8(%rsp)
+ fildl 8(%rsp)
+ fsubrp %st(1)
+ addl $0x3fff,8(%rsp)
+ f2xm1
+ fld1
+ faddp # 2^(x-rint(x))
+ fldt (%rsp) # 2^rint(x)
+ fmulp
+ add $16,%rsp
+ ret
diff --git a/src/math/x32/expl.s b/src/math/x32/expl.s
new file mode 100644
index 00000000..3add810d
--- /dev/null
+++ b/src/math/x32/expl.s
@@ -0,0 +1,101 @@
+# exp(x) = 2^hi + 2^hi (2^lo - 1)
+# where hi+lo = log2e*x with 128bit precision
+# exact log2e*x calculation depends on nearest rounding mode
+# using the exact multiplication method of Dekker and Veltkamp
+
+.global expl
+.type expl,@function
+expl:
+ fldt 8(%rsp)
+
+ # interesting case: 0x1p-32 <= |x| < 16384
+ # check if (exponent|0x8000) is in [0xbfff-32, 0xbfff+13]
+ mov 16(%rsp), %ax
+ or $0x8000, %ax
+ sub $0xbfdf, %ax
+ cmp $45, %ax
+ jbe 2f
+ test %ax, %ax
+ fld1
+ js 1f
+ # if |x|>=0x1p14 or nan return 2^trunc(x)
+ fscale
+ fstp %st(1)
+ ret
+ # if |x|<0x1p-32 return 1+x
+1: faddp
+ ret
+
+ # should be 0x1.71547652b82fe178p0L == 0x3fff b8aa3b29 5c17f0bc
+ # it will be wrong on non-nearest rounding mode
+2: fldl2e
+ subq $48, %rsp
+ # hi = log2e_hi*x
+ # 2^hi = exp2l(hi)
+ fmul %st(1),%st
+ fld %st(0)
+ fstpt (%rsp)
+ fstpt 16(%rsp)
+ fstpt 32(%rsp)
+ call exp2l
+ # if 2^hi == inf return 2^hi
+ fld %st(0)
+ fstpt (%rsp)
+ cmpw $0x7fff, 8(%rsp)
+ je 1f
+ fldt 32(%rsp)
+ fldt 16(%rsp)
+ # fpu stack: 2^hi x hi
+ # exact mult: x*log2e
+ fld %st(1)
+ # c = 0x1p32+1
+ movq $0x41f0000000100000,%rax
+ pushq %rax
+ fldl (%rsp)
+ # xh = x - c*x + c*x
+ # xl = x - xh
+ fmulp
+ fld %st(2)
+ fsub %st(1), %st
+ faddp
+ fld %st(2)
+ fsub %st(1), %st
+ # yh = log2e_hi - c*log2e_hi + c*log2e_hi
+ movq $0x3ff7154765200000,%rax
+ pushq %rax
+ fldl (%rsp)
+ # fpu stack: 2^hi x hi xh xl yh
+ # lo = hi - xh*yh + xl*yh
+ fld %st(2)
+ fmul %st(1), %st
+ fsubp %st, %st(4)
+ fmul %st(1), %st
+ faddp %st, %st(3)
+ # yl = log2e_hi - yh
+ movq $0x3de705fc2f000000,%rax
+ pushq %rax
+ fldl (%rsp)
+ # fpu stack: 2^hi x lo xh xl yl
+ # lo += xh*yl + xl*yl
+ fmul %st, %st(2)
+ fmulp %st, %st(1)
+ fxch %st(2)
+ faddp
+ faddp
+ # log2e_lo
+ movq $0xbfbe,%rax
+ pushq %rax
+ movq $0x82f0025f2dc582ee,%rax
+ pushq %rax
+ fldt (%rsp)
+ addq $40,%rsp
+ # fpu stack: 2^hi x lo log2e_lo
+ # lo += log2e_lo*x
+ # return 2^hi + 2^hi (2^lo - 1)
+ fmulp %st, %st(2)
+ faddp
+ f2xm1
+ fmul %st(1), %st
+ faddp
+1: addq $48, %rsp
+ ret
diff --git a/src/math/x32/expm1l.s b/src/math/x32/expm1l.s
new file mode 100644
index 00000000..e773f080
--- /dev/null
+++ b/src/math/x32/expm1l.s
@@ -0,0 +1 @@
+# see exp2l.s
diff --git a/src/math/x32/fabs.s b/src/math/x32/fabs.s
new file mode 100644
index 00000000..5715005e
--- /dev/null
+++ b/src/math/x32/fabs.s
@@ -0,0 +1,9 @@
+.global fabs
+.type fabs,@function
+fabs:
+ xor %eax,%eax
+ dec %rax
+ shr %rax
+ movq %rax,%xmm1
+ andpd %xmm1,%xmm0
+ ret
diff --git a/src/math/x32/fabsf.s b/src/math/x32/fabsf.s
new file mode 100644
index 00000000..501a1f17
--- /dev/null
+++ b/src/math/x32/fabsf.s
@@ -0,0 +1,7 @@
+.global fabsf
+.type fabsf,@function
+fabsf:
+ mov $0x7fffffff,%eax
+ movq %rax,%xmm1
+ andps %xmm1,%xmm0
+ ret
diff --git a/src/math/x32/fabsl.s b/src/math/x32/fabsl.s
new file mode 100644
index 00000000..4e7ab525
--- /dev/null
+++ b/src/math/x32/fabsl.s
@@ -0,0 +1,6 @@
+.global fabsl
+.type fabsl,@function
+fabsl:
+ fldt 8(%rsp)
+ fabs
+ ret
diff --git a/src/math/x32/floorl.s b/src/math/x32/floorl.s
new file mode 100644
index 00000000..80da4660
--- /dev/null
+++ b/src/math/x32/floorl.s
@@ -0,0 +1,27 @@
+.global floorl
+.type floorl,@function
+floorl:
+ fldt 8(%rsp)
+1: mov $0x7,%al
+1: fstcw 8(%rsp)
+ mov 9(%rsp),%ah
+ mov %al,9(%rsp)
+ fldcw 8(%rsp)
+ frndint
+ mov %ah,9(%rsp)
+ fldcw 8(%rsp)
+ ret
+
+.global ceill
+.type ceill,@function
+ceill:
+ fldt 8(%rsp)
+ mov $0xb,%al
+ jmp 1b
+
+.global truncl
+.type truncl,@function
+truncl:
+ fldt 8(%rsp)
+ mov $0xf,%al
+ jmp 1b
diff --git a/src/math/x32/fmodl.s b/src/math/x32/fmodl.s
new file mode 100644
index 00000000..ca81e60c
--- /dev/null
+++ b/src/math/x32/fmodl.s
@@ -0,0 +1,11 @@
+.global fmodl
+.type fmodl,@function
+fmodl:
+ fldt 24(%rsp)
+ fldt 8(%rsp)
+1: fprem
+ fstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+ ret
diff --git a/src/math/x32/llrint.s b/src/math/x32/llrint.s
new file mode 100644
index 00000000..bf476498
--- /dev/null
+++ b/src/math/x32/llrint.s
@@ -0,0 +1,5 @@
+.global llrint
+.type llrint,@function
+llrint:
+ cvtsd2si %xmm0,%rax
+ ret
diff --git a/src/math/x32/llrintf.s b/src/math/x32/llrintf.s
new file mode 100644
index 00000000..d7204ac0
--- /dev/null
+++ b/src/math/x32/llrintf.s
@@ -0,0 +1,5 @@
+.global llrintf
+.type llrintf,@function
+llrintf:
+ cvtss2si %xmm0,%rax
+ ret
diff --git a/src/math/x32/llrintl.s b/src/math/x32/llrintl.s
new file mode 100644
index 00000000..1ec0817d
--- /dev/null
+++ b/src/math/x32/llrintl.s
@@ -0,0 +1,7 @@
+.global llrintl
+.type llrintl,@function
+llrintl:
+ fldt 8(%rsp)
+ fistpll 8(%rsp)
+ mov 8(%rsp),%rax
+ ret
diff --git a/src/math/x32/log10l.s b/src/math/x32/log10l.s
new file mode 100644
index 00000000..48ea4af7
--- /dev/null
+++ b/src/math/x32/log10l.s
@@ -0,0 +1,7 @@
+.global log10l
+.type log10l,@function
+log10l:
+ fldlg2
+ fldt 8(%rsp)
+ fyl2x
+ ret
diff --git a/src/math/x32/log1pl.s b/src/math/x32/log1pl.s
new file mode 100644
index 00000000..955c9dbf
--- /dev/null
+++ b/src/math/x32/log1pl.s
@@ -0,0 +1,15 @@
+.global log1pl
+.type log1pl,@function
+log1pl:
+ mov 14(%rsp),%eax
+ fldln2
+ and $0x7fffffff,%eax
+ fldt 8(%rsp)
+ cmp $0x3ffd9400,%eax
+ ja 1f
+ fyl2xp1
+ ret
+1: fld1
+ faddp
+ fyl2x
+ ret
diff --git a/src/math/x32/log2l.s b/src/math/x32/log2l.s
new file mode 100644
index 00000000..ba08b9fb
--- /dev/null
+++ b/src/math/x32/log2l.s
@@ -0,0 +1,7 @@
+.global log2l
+.type log2l,@function
+log2l:
+ fld1
+ fldt 8(%rsp)
+ fyl2x
+ ret
diff --git a/src/math/x32/logl.s b/src/math/x32/logl.s
new file mode 100644
index 00000000..20dd1f81
--- /dev/null
+++ b/src/math/x32/logl.s
@@ -0,0 +1,7 @@
+.global logl
+.type logl,@function
+logl:
+ fldln2
+ fldt 8(%rsp)
+ fyl2x
+ ret
diff --git a/src/math/x32/lrint.s b/src/math/x32/lrint.s
new file mode 100644
index 00000000..15fc2454
--- /dev/null
+++ b/src/math/x32/lrint.s
@@ -0,0 +1,5 @@
+.global lrint
+.type lrint,@function
+lrint:
+ cvtsd2si %xmm0,%rax
+ ret
diff --git a/src/math/x32/lrintf.s b/src/math/x32/lrintf.s
new file mode 100644
index 00000000..488423d2
--- /dev/null
+++ b/src/math/x32/lrintf.s
@@ -0,0 +1,5 @@
+.global lrintf
+.type lrintf,@function
+lrintf:
+ cvtss2si %xmm0,%rax
+ ret
diff --git a/src/math/x32/lrintl.s b/src/math/x32/lrintl.s
new file mode 100644
index 00000000..d587b12b
--- /dev/null
+++ b/src/math/x32/lrintl.s
@@ -0,0 +1,7 @@
+.global lrintl
+.type lrintl,@function
+lrintl:
+ fldt 8(%rsp)
+ fistpll 8(%rsp)
+ mov 8(%rsp),%rax
+ ret
diff --git a/src/math/x32/remainderl.s b/src/math/x32/remainderl.s
new file mode 100644
index 00000000..75c12374
--- /dev/null
+++ b/src/math/x32/remainderl.s
@@ -0,0 +1,11 @@
+.global remainderl
+.type remainderl,@function
+remainderl:
+ fldt 24(%rsp)
+ fldt 8(%rsp)
+1: fprem1
+ fstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+ ret
diff --git a/src/math/x32/rintl.s b/src/math/x32/rintl.s
new file mode 100644
index 00000000..64e663cd
--- /dev/null
+++ b/src/math/x32/rintl.s
@@ -0,0 +1,6 @@
+.global rintl
+.type rintl,@function
+rintl:
+ fldt 8(%rsp)
+ frndint
+ ret
diff --git a/src/math/x32/sqrt.s b/src/math/x32/sqrt.s
new file mode 100644
index 00000000..d3c609f9
--- /dev/null
+++ b/src/math/x32/sqrt.s
@@ -0,0 +1,4 @@
+.global sqrt
+.type sqrt,@function
+sqrt: sqrtsd %xmm0, %xmm0
+ ret
diff --git a/src/math/x32/sqrtf.s b/src/math/x32/sqrtf.s
new file mode 100644
index 00000000..eec48c60
--- /dev/null
+++ b/src/math/x32/sqrtf.s
@@ -0,0 +1,4 @@
+.global sqrtf
+.type sqrtf,@function
+sqrtf: sqrtss %xmm0, %xmm0
+ ret
diff --git a/src/math/x32/sqrtl.s b/src/math/x32/sqrtl.s
new file mode 100644
index 00000000..23cd687d
--- /dev/null
+++ b/src/math/x32/sqrtl.s
@@ -0,0 +1,5 @@
+.global sqrtl
+.type sqrtl,@function
+sqrtl: fldt 8(%rsp)
+ fsqrt
+ ret
diff --git a/src/math/x32/truncl.s b/src/math/x32/truncl.s
new file mode 100644
index 00000000..f5cfa3b3
--- /dev/null
+++ b/src/math/x32/truncl.s
@@ -0,0 +1 @@
+# see floorl.s
diff --git a/src/process/x32/vfork.s b/src/process/x32/vfork.s
new file mode 100644
index 00000000..27af46f5
--- /dev/null
+++ b/src/process/x32/vfork.s
@@ -0,0 +1,12 @@
+.global __vfork
+.weak vfork
+.type __vfork,@function
+.type vfork,@function
+__vfork:
+vfork:
+ pop %rdx
+ mov $58,%eax
+ syscall
+ push %rdx
+ mov %rax,%rdi
+ jmp __syscall_ret
diff --git a/src/setjmp/x32/longjmp.s b/src/setjmp/x32/longjmp.s
new file mode 100644
index 00000000..e175a4b9
--- /dev/null
+++ b/src/setjmp/x32/longjmp.s
@@ -0,0 +1,22 @@
+/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+ mov %rsi,%rax /* val will be longjmp return */
+ test %rax,%rax
+ jnz 1f
+ inc %rax /* if val==0, val=1 per longjmp semantics */
+1:
+ mov (%rdi),%rbx /* rdi is the jmp_buf, restore regs from it */
+ mov 8(%rdi),%rbp
+ mov 16(%rdi),%r12
+ mov 24(%rdi),%r13
+ mov 32(%rdi),%r14
+ mov 40(%rdi),%r15
+ mov 48(%rdi),%rdx /* this ends up being the stack pointer */
+ mov %rdx,%rsp
+ mov 56(%rdi),%rdx /* this is the instruction pointer */
+ jmp *%rdx /* goto saved address without altering rsp */
diff --git a/src/setjmp/x32/setjmp.s b/src/setjmp/x32/setjmp.s
new file mode 100644
index 00000000..98f58b8d
--- /dev/null
+++ b/src/setjmp/x32/setjmp.s
@@ -0,0 +1,22 @@
+/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+ mov %rbx,(%rdi) /* rdi is jmp_buf, move registers onto it */
+ mov %rbp,8(%rdi)
+ mov %r12,16(%rdi)
+ mov %r13,24(%rdi)
+ mov %r14,32(%rdi)
+ mov %r15,40(%rdi)
+ lea 8(%rsp),%rdx /* this is our rsp WITHOUT current ret addr */
+ mov %rdx,48(%rdi)
+ mov (%rsp),%rdx /* save return addr ptr for new rip */
+ mov %rdx,56(%rdi)
+ xor %rax,%rax /* always return 0 */
+ ret
diff --git a/src/signal/x32/restore.s b/src/signal/x32/restore.s
new file mode 100644
index 00000000..682af2dd
--- /dev/null
+++ b/src/signal/x32/restore.s
@@ -0,0 +1,8 @@
+.global __restore_rt
+.global __restore
+.type __restore_rt,@function
+.type __restore,@function
+__restore_rt:
+__restore:
+ movl $15, %eax
+ syscall
diff --git a/src/signal/x32/sigsetjmp.s b/src/signal/x32/sigsetjmp.s
new file mode 100644
index 00000000..dc38f032
--- /dev/null
+++ b/src/signal/x32/sigsetjmp.s
@@ -0,0 +1,14 @@
+/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
+.global sigsetjmp
+.type sigsetjmp,@function
+sigsetjmp:
+ andl %esi,%esi
+ movq %rsi,64(%rdi)
+ jz 1f
+ pushq %rdi
+ leaq 72(%rdi),%rdx
+ xorl %esi,%esi
+ movl $2,%edi
+ call sigprocmask
+ popq %rdi
+1: jmp setjmp
diff --git a/src/thread/x32/__set_thread_area.s b/src/thread/x32/__set_thread_area.s
new file mode 100644
index 00000000..f3ff4f61
--- /dev/null
+++ b/src/thread/x32/__set_thread_area.s
@@ -0,0 +1,10 @@
+/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
+.text
+.global __set_thread_area
+.type __set_thread_area,@function
+__set_thread_area:
+ mov %rdi,%rsi /* shift for syscall */
+ movl $0x1002,%edi /* SET_FS register */
+ movl $158,%eax /* set fs segment to */
+ syscall /* arch_prctl(SET_FS, arg)*/
+ ret
diff --git a/src/thread/x32/__unmapself.s b/src/thread/x32/__unmapself.s
new file mode 100644
index 00000000..e2689e65
--- /dev/null
+++ b/src/thread/x32/__unmapself.s
@@ -0,0 +1,10 @@
+/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
+.text
+.global __unmapself
+.type __unmapself,@function
+__unmapself:
+ movl $11,%eax /* SYS_munmap */
+ syscall /* munmap(arg2,arg3) */
+ xor %rdi,%rdi /* exit() args: always return success */
+ movl $60,%eax /* SYS_exit */
+ syscall /* exit(0) */
diff --git a/src/thread/x32/clone.s b/src/thread/x32/clone.s
new file mode 100644
index 00000000..ee59903a
--- /dev/null
+++ b/src/thread/x32/clone.s
@@ -0,0 +1,27 @@
+.text
+.global __clone
+.type __clone,@function
+__clone:
+ xor %eax,%eax
+ mov $56,%al
+ mov %rdi,%r11
+ mov %rdx,%rdi
+ mov %r8,%rdx
+ mov %r9,%r8
+ mov 8(%rsp),%r10
+ mov %r11,%r9
+ and $-16,%rsi
+ sub $8,%rsi
+ mov %rcx,(%rsi)
+ syscall
+ test %eax,%eax
+ jnz 1f
+ xor %ebp,%ebp
+ pop %rdi
+ call *%r9
+ mov %eax,%edi
+ xor %eax,%eax
+ mov $60,%al
+ syscall
+ hlt
+1: ret
diff --git a/src/thread/x32/syscall_cp.s b/src/thread/x32/syscall_cp.s
new file mode 100644
index 00000000..788c53cc
--- /dev/null
+++ b/src/thread/x32/syscall_cp.s
@@ -0,0 +1,23 @@
+.text
+.global __syscall_cp_asm
+.type __syscall_cp_asm,@function
+__syscall_cp_asm:
+
+.global __cp_begin
+__cp_begin:
+ mov (%rdi),%eax
+ test %eax,%eax
+ jnz __cancel
+ mov %rdi,%r11
+ mov %rsi,%rax
+ mov %rdx,%rdi
+ mov %rcx,%rsi
+ mov %r8,%rdx
+ mov %r9,%r10
+ mov 8(%rsp),%r8
+ mov 16(%rsp),%r9
+ mov %r11,8(%rsp)
+ syscall
+.global __cp_end
+__cp_end:
+ ret