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ntdll: Add support for longjmp in RtlUnwindEx.

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This commit is contained in:
Alexandre Julliard 2011-02-01 16:34:04 +01:00
parent 008cf3c18c
commit 10dcc85de0
1 changed files with 52 additions and 0 deletions
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52
dlls/ntdll/signal_x86_64.c
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@ -100,6 +100,33 @@ typedef struct _SCOPE_TABLE
} SCOPE_TABLE, *PSCOPE_TABLE;
/* layering violation: the setjmp buffer is defined in msvcrt, but used by RtlUnwindEx */
struct MSVCRT_JUMP_BUFFER
{
ULONG64 Frame;
ULONG64 Rbx;
ULONG64 Rsp;
ULONG64 Rbp;
ULONG64 Rsi;
ULONG64 Rdi;
ULONG64 R12;
ULONG64 R13;
ULONG64 R14;
ULONG64 R15;
ULONG64 Rip;
ULONG64 Spare;
M128A Xmm6;
M128A Xmm7;
M128A Xmm8;
M128A Xmm9;
M128A Xmm10;
M128A Xmm11;
M128A Xmm12;
M128A Xmm13;
M128A Xmm14;
M128A Xmm15;
};
/***********************************************************************
* signal context platform-specific definitions
*/
@ -3008,6 +3035,31 @@ void WINAPI RtlUnwindEx( PVOID end_frame, PVOID target_ip, EXCEPTION_RECORD *rec
context = new_context;
}
if (rec->ExceptionCode == STATUS_LONGJUMP && rec->NumberParameters >= 1)
{
struct MSVCRT_JUMP_BUFFER *jmp = (struct MSVCRT_JUMP_BUFFER *)rec->ExceptionInformation[0];
context.Rbx = jmp->Rbx;
context.Rsp = jmp->Rsp;
context.Rbp = jmp->Rbp;
context.Rsi = jmp->Rsi;
context.Rdi = jmp->Rdi;
context.R12 = jmp->R12;
context.R13 = jmp->R13;
context.R14 = jmp->R14;
context.R15 = jmp->R15;
context.Rip = jmp->Rip;
context.u.s.Xmm6 = jmp->Xmm6;
context.u.s.Xmm7 = jmp->Xmm7;
context.u.s.Xmm8 = jmp->Xmm8;
context.u.s.Xmm9 = jmp->Xmm9;
context.u.s.Xmm10 = jmp->Xmm10;
context.u.s.Xmm11 = jmp->Xmm11;
context.u.s.Xmm12 = jmp->Xmm12;
context.u.s.Xmm13 = jmp->Xmm13;
context.u.s.Xmm14 = jmp->Xmm14;
context.u.s.Xmm15 = jmp->Xmm15;
}
context.Rax = (ULONG64)retval;
context.Rip = (ULONG64)target_ip;
TRACE( "returning to %lx stack %lx\n", context.Rip, context.Rsp );