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ntdll: Store the real stack pointer in RtlCaptureContext. 

In most cases, unwinding will use the frame pointer anyway, so it
doesn't make much of a difference, but for cases where it won't,
capture the actual stack pointer.

(In most cases on arm64, calling the RtlCaptureContext won't cause
anything extra to be pushed on the stack at that point anyway).

Signed-off-by: Martin Storsjo <martin@martin.st>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Martin Storsjo 2020-05-28 11:14:41 +03:00 committed by Alexandre Julliard
parent 8e4f0b2a15
commit 42a5885669
1 changed files with 2 additions and 2 deletions
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4
dlls/ntdll/signal_arm64.c
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@ -265,8 +265,8 @@ __ASM_STDCALL_FUNC( RtlCaptureContext, 8,
"stp x23, x24, [x0, #0xc0]\n\t" /* context->X23,X24 */
"stp x25, x26, [x0, #0xd0]\n\t" /* context->X25,X26 */
"stp x27, x28, [x0, #0xe0]\n\t" /* context->X27,X28 */
"stp x29, x30, [x0, #0xf0]\n\t" /* context->Fp,Lr */
"add x1, x29, #0x10\n\t"
"stp x29, x30, [x0, #0xf0]\n\t" /* context->Fp,Lr */
"mov x1, sp\n\t"
"stp x1, x30, [x0, #0x100]\n\t" /* context->Sp,Pc */
"mov w1, #0x400000\n\t" /* CONTEXT_ARM64 */
"add w1, w1, #0x3\n\t" /* CONTEXT_FULL */