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Add variable to identify crashes in original code

This commit is contained in:
Michał Janiszewski 2016-09-22 23:41:10 +02:00 committed by Ted John
parent 5b01653c11
commit fd6d4e2fd7
1 changed files with 8 additions and 0 deletions
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8
src/addresses.c
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@ -28,9 +28,14 @@
#define DISABLE_OPT
#endif // defined(__GNUC__)
// This variable serves a purpose of identifying a crash if it has happened inside original code.
// When switching to original code, stack frame pointer is modified and prevents breakpad from providing stack trace.
volatile int _originalAddress = 0;
int DISABLE_OPT RCT2_CALLPROC_X(int address, int _eax, int _ebx, int _ecx, int _edx, int _esi, int _edi, int _ebp)
{
int result = 0;
_originalAddress = address;
#if defined(PLATFORM_X86) && !defined(NO_RCT2)
#ifdef _MSC_VER
__asm {
@ -76,6 +81,7 @@ int DISABLE_OPT RCT2_CALLPROC_X(int address, int _eax, int _ebx, int _ecx, int _
);
#endif
#endif // PLATFORM_X86
_originalAddress = 0;
// lahf only modifies ah, zero out the rest
return result & 0xFF00;
}
@ -83,6 +89,7 @@ int DISABLE_OPT RCT2_CALLPROC_X(int address, int _eax, int _ebx, int _ecx, int _
int DISABLE_OPT RCT2_CALLFUNC_X(int address, int *_eax, int *_ebx, int *_ecx, int *_edx, int *_esi, int *_edi, int *_ebp)
{
int result = 0;
_originalAddress = address;
#if defined(PLATFORM_X86) && !defined(NO_RCT2)
#ifdef _MSC_VER
__asm {
@ -229,6 +236,7 @@ int DISABLE_OPT RCT2_CALLFUNC_X(int address, int *_eax, int *_ebx, int *_ecx, in
);
#endif
#endif // PLATFORM_X86
_originalAddress = 0;
// lahf only modifies ah, zero out the rest
return result & 0xFF00;
}