Alexandre Julliard : ntdll: Avoid copying and restoring the context in RtlCaptureContext for x86_64.
Module: wine Branch: master Commit: 33e6238f0481f9f0ef94d87a250011390549b28b URL: http://source.winehq.org/git/wine.git/?a=commit;h=33e6238f0481f9f0ef94d87a25...
Author: Alexandre Julliard julliard@winehq.org Date: Thu Jan 27 12:20:19 2011 +0100
ntdll: Avoid copying and restoring the context in RtlCaptureContext for x86_64.
---
dlls/ntdll/signal_x86_64.c | 56 +++++++++++++++++++++++++++++++++++++++---- 1 files changed, 50 insertions(+), 6 deletions(-)
diff --git a/dlls/ntdll/signal_x86_64.c b/dlls/ntdll/signal_x86_64.c index ad49411..ae9a2bd 100644 --- a/dlls/ntdll/signal_x86_64.c +++ b/dlls/ntdll/signal_x86_64.c @@ -1459,12 +1459,56 @@ static void restore_context( const CONTEXT *context, ucontext_t *sigcontext ) /*********************************************************************** * RtlCaptureContext (NTDLL.@) */ -void WINAPI __regs_RtlCaptureContext( CONTEXT *context, CONTEXT *regs ) -{ - *context = *regs; -} -DEFINE_REGS_ENTRYPOINT( RtlCaptureContext, 1 ) - +__ASM_GLOBAL_FUNC( RtlCaptureContext, + "pushfq\n\t" + __ASM_CFI(".cfi_adjust_cfa_offset 8\n\t") + "movl $0x001000f,0x30(%rcx)\n\t" /* context->ContextFlags */ + "stmxcsr 0x34(%rcx)\n\t" /* context->MxCsr */ + "movw %cs,0x38(%rcx)\n\t" /* context->SegCs */ + "movw %ds,0x3a(%rcx)\n\t" /* context->SegDs */ + "movw %es,0x3c(%rcx)\n\t" /* context->SegEs */ + "movw %fs,0x3e(%rcx)\n\t" /* context->SegFs */ + "movw %gs,0x40(%rcx)\n\t" /* context->SegGs */ + "movw %ss,0x42(%rcx)\n\t" /* context->SegSs */ + "popq 0x44(%rcx)\n\t" /* context->Eflags */ + __ASM_CFI(".cfi_adjust_cfa_offset -8\n\t") + "movq %rax,0x78(%rcx)\n\t" /* context->Rax */ + "movq %rcx,0x80(%rcx)\n\t" /* context->Rcx */ + "movq %rdx,0x88(%rcx)\n\t" /* context->Rdx */ + "movq %rbx,0x90(%rcx)\n\t" /* context->Rbx */ + "leaq 8(%rsp),%rax\n\t" + "movq %rax,0x98(%rcx)\n\t" /* context->Rsp */ + "movq %rbp,0xa0(%rcx)\n\t" /* context->Rbp */ + "movq %rsi,0xa8(%rcx)\n\t" /* context->Rsi */ + "movq %rdi,0xb0(%rcx)\n\t" /* context->Rdi */ + "movq %r8,0xb8(%rcx)\n\t" /* context->R8 */ + "movq %r9,0xc0(%rcx)\n\t" /* context->R9 */ + "movq %r10,0xc8(%rcx)\n\t" /* context->R10 */ + "movq %r11,0xd0(%rcx)\n\t" /* context->R11 */ + "movq %r12,0xd8(%rcx)\n\t" /* context->R12 */ + "movq %r13,0xe0(%rcx)\n\t" /* context->R13 */ + "movq %r14,0xe8(%rcx)\n\t" /* context->R14 */ + "movq %r15,0xf0(%rcx)\n\t" /* context->R15 */ + "movq (%rsp),%rax\n\t" + "movq %rax,0xf8(%rcx)\n\t" /* context->Rip */ + "fxsave 0x100(%rcx)\n\t" /* context->FtlSave */ + "movdqa %xmm0,0x1a0(%rcx)\n\t" /* context->Xmm0 */ + "movdqa %xmm1,0x1b0(%rcx)\n\t" /* context->Xmm1 */ + "movdqa %xmm2,0x1c0(%rcx)\n\t" /* context->Xmm2 */ + "movdqa %xmm3,0x1d0(%rcx)\n\t" /* context->Xmm3 */ + "movdqa %xmm4,0x1e0(%rcx)\n\t" /* context->Xmm4 */ + "movdqa %xmm5,0x1f0(%rcx)\n\t" /* context->Xmm5 */ + "movdqa %xmm6,0x200(%rcx)\n\t" /* context->Xmm6 */ + "movdqa %xmm7,0x210(%rcx)\n\t" /* context->Xmm7 */ + "movdqa %xmm8,0x220(%rcx)\n\t" /* context->Xmm8 */ + "movdqa %xmm9,0x230(%rcx)\n\t" /* context->Xmm9 */ + "movdqa %xmm10,0x240(%rcx)\n\t" /* context->Xmm10 */ + "movdqa %xmm11,0x250(%rcx)\n\t" /* context->Xmm11 */ + "movdqa %xmm12,0x260(%rcx)\n\t" /* context->Xmm12 */ + "movdqa %xmm13,0x270(%rcx)\n\t" /* context->Xmm13 */ + "movdqa %xmm14,0x280(%rcx)\n\t" /* context->Xmm14 */ + "movdqa %xmm15,0x290(%rcx)\n\t" /* context->Xmm15 */ + "ret" );
/*********************************************************************** * set_cpu_context
-
Alexandre Julliard