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ntdll: Save rdi and rsi in raise_func_trampoline. 

Signed-off-by: Andrew Wesie <awesie@gmail.com>
Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Andrew Wesie 2017-03-07 19:11:11 +01:00 committed by Alexandre Julliard
parent 2c733057e9
commit 9eecacbeb1
1 changed files with 9 additions and 3 deletions
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12
dlls/ntdll/signal_x86_64.c
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@ -2066,9 +2066,11 @@ NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
extern void raise_func_trampoline( EXCEPTION_RECORD *rec, CONTEXT *context, raise_func func );
__ASM_GLOBAL_FUNC( raise_func_trampoline,
__ASM_CFI(".cfi_signal_frame\n\t")
__ASM_CFI(".cfi_def_cfa %rbp,144\n\t") /* red zone + rip + rbp */
__ASM_CFI(".cfi_rel_offset %rip,8\n\t")
__ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
__ASM_CFI(".cfi_def_cfa %rbp,160\n\t") /* red zone + rip + rbp + rdi + rsi */
__ASM_CFI(".cfi_rel_offset %rip,24\n\t")
__ASM_CFI(".cfi_rel_offset %rbp,16\n\t")
__ASM_CFI(".cfi_rel_offset %rdi,8\n\t")
__ASM_CFI(".cfi_rel_offset %rsi,0\n\t")
"call *%rdx\n\t"
"int $3")
@ -2085,6 +2087,8 @@ static EXCEPTION_RECORD *setup_exception( ucontext_t *sigcontext, raise_func fun
{
CONTEXT context;
EXCEPTION_RECORD rec;
ULONG64 rsi;
ULONG64 rdi;
ULONG64 rbp;
ULONG64 rip;
ULONG64 red_zone[16];
@ -2154,6 +2158,8 @@ static EXCEPTION_RECORD *setup_exception( ucontext_t *sigcontext, raise_func fun
rsp_ptr = (ULONG64 *)RSP_sig(sigcontext) - 16;
*(--rsp_ptr) = RIP_sig(sigcontext);
*(--rsp_ptr) = RBP_sig(sigcontext);
*(--rsp_ptr) = RDI_sig(sigcontext);
*(--rsp_ptr) = RSI_sig(sigcontext);
/* now modify the sigcontext to return to the raise function */
RIP_sig(sigcontext) = (ULONG_PTR)raise_func_trampoline;