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x86: Best guess at update for Darwin

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This commit is contained in:
Richard Henderson
2014-11-22 20:02:43 +01:00
parent 58bf7d65d8
commit 9f112619c1
6 changed files with 103 additions and 928 deletions
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67
src/x86/unix64.S
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@@ -35,6 +35,22 @@
.text
#define C2(X, Y) X ## Y
#define C1(X, Y) C2(X, Y)
#ifdef __USER_LABEL_PREFIX__
# define C(X) C1(__USER_LABEL_PREFIX__, X)
#else
# define C(X) X
#endif
#ifdef __ELF__
# define PLT(X) X@PLT
# define ENDF(X) .type X,@function; .size X, . - X
#else
# define PLT(X) X
# define ENDF(X)
#endif
/* This macro allows the safe creation of jump tables without an
actual table. The entry points into the table are all 8 bytes.
The use of ORG asserts that we're at the correct location. */
@@ -54,11 +70,10 @@
deallocate some of the stack that has been alloca'd. */
.align 8
.globl ffi_call_unix64
.type ffi_call_unix64,@function
FFI_HIDDEN(ffi_call_unix64)
.globl C(ffi_call_unix64)
FFI_HIDDEN(C(ffi_call_unix64))
ffi_call_unix64:
C(ffi_call_unix64):
cfi_startproc
movq (%rsp), %r10 /* Load return address. */
leaq (%rdi, %rsi), %rax /* Find local stack base. */
@@ -187,7 +202,7 @@ E UNIX64_RET_ST_RAX_RDX
rep movsb
ret
9: call abort@PLT
9: call PLT(C(abort))
/* Many times we can avoid loading any SSE registers at all.
It's not worth an indirect jump to load the exact set of
@@ -206,7 +221,7 @@ E UNIX64_RET_ST_RAX_RDX
jmp .Lret_from_load_sse
cfi_endproc
.size ffi_call_unix64,.-ffi_call_unix64
ENDF(C(ffi_call_unix64))
/* 6 general registers, 8 vector registers,
32 bytes of rvalue, 8 bytes of alignment. */
@@ -219,11 +234,10 @@ E UNIX64_RET_ST_RAX_RDX
#define ffi_closure_RED_RVALUE (ffi_closure_OFS_RVALUE - ffi_closure_FS)
.align 2
.globl ffi_closure_unix64_sse
.type ffi_closure_unix64_sse,@function
FFI_HIDDEN(ffi_closure_unix64_sse)
.globl C(ffi_closure_unix64_sse)
FFI_HIDDEN(C(ffi_closure_unix64_sse))
ffi_closure_unix64_sse:
C(ffi_closure_unix64_sse):
cfi_startproc
subq $ffi_closure_FS, %rsp
/* Note clang bug 21515: adjust_cfa_offset error across endproc. */
@@ -240,14 +254,13 @@ ffi_closure_unix64_sse:
jmp 0f
cfi_endproc
.size ffi_closure_unix64_sse,.-ffi_closure_unix64_sse
ENDF(C(ffi_closure_unix64_sse))
.align 2
.globl ffi_closure_unix64
.type ffi_closure_unix64,@function
FFI_HIDDEN(ffi_closure_unix64)
.globl C(ffi_closure_unix64)
FFI_HIDDEN(C(ffi_closure_unix64))
ffi_closure_unix64:
C(ffi_closure_unix64):
cfi_startproc
subq $ffi_closure_FS, %rsp
/* Note clang bug 21515: adjust_cfa_offset error across endproc. */
@@ -273,7 +286,7 @@ ffi_closure_unix64:
leaq ffi_closure_OFS_RVALUE(%rsp), %rcx /* Load rvalue */
movq %rsp, %r8 /* Load reg_args */
leaq ffi_closure_FS+8(%rsp), %r9 /* Load argp */
call ffi_closure_unix64_inner
call C(ffi_closure_unix64_inner)
/* Deallocate stack frame early; return value is now in redzone. */
addq $ffi_closure_FS, %rsp
@@ -343,17 +356,16 @@ E UNIX64_RET_ST_RAX_RDX
3: movq (%rsi), %xmm0
ret
9: call abort@PLT
9: call PLT(C(abort))
cfi_endproc
.size ffi_closure_unix64,.-ffi_closure_unix64
ENDF(C(ffi_closure_unix64))
.align 2
.globl ffi_go_closure_unix64_sse
.type ffi_go_closure_unix64_sse,@function
FFI_HIDDEN(ffi_go_closure_unix64_sse)
.globl C(ffi_go_closure_unix64_sse)
FFI_HIDDEN(C(ffi_go_closure_unix64_sse))
ffi_go_closure_unix64_sse:
C(ffi_go_closure_unix64_sse):
cfi_startproc
subq $ffi_closure_FS, %rsp
/* Note clang bug 21515: adjust_cfa_offset error across endproc. */
@@ -370,14 +382,13 @@ ffi_go_closure_unix64_sse:
jmp 0f
cfi_endproc
.size ffi_go_closure_unix64_sse,.-ffi_go_closure_unix64_sse
ENDF(C(ffi_go_closure_unix64_sse))
.align 2
.globl ffi_go_closure_unix64
.type ffi_go_closure_unix64,@function
FFI_HIDDEN(ffi_go_closure_unix64)
.globl C(ffi_go_closure_unix64)
FFI_HIDDEN(C(ffi_go_closure_unix64))
ffi_go_closure_unix64:
C(ffi_go_closure_unix64):
cfi_startproc
subq $ffi_closure_FS, %rsp
/* Note clang bug 21515: adjust_cfa_offset error across endproc. */
@@ -402,7 +413,7 @@ ffi_go_closure_unix64:
jmp .Ldo_closure
cfi_endproc
.size ffi_go_closure_unix64,.-ffi_go_closure_unix64
ENDF(C(ffi_go_closure_unix64))
#endif /* __x86_64__ */
#if defined __ELF__ && defined __linux__