HL_API bool hl_debug_write_register( int pid, int thread, int reg, void *value, bool is64 ) {
# if defined(HL_WIN)
# ifdef HL_64
if( !is64 ) {
WOW64_CONTEXT c;
c.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS;
if( !Wow64GetThreadContext(OpenTID(thread),&c) )
return false;
if( reg == 3 )
c.EFlags = (int)(int_val)value;
else
*GetContextReg32(&c,reg) = (DWORD)(int_val)value;
return (bool)Wow64SetThreadContext(OpenTID(thread),&c);
}
# else
if( is64 ) return false;
# endif
CONTEXT c;
c.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS;
if( !GetThreadContext(OpenTID(thread),&c) )
return false;
if( reg == 3 )
c.EFlags = (int)(int_val)value;
else
*GetContextReg(&c,reg) = (REGDATA)value;
return (bool)SetThreadContext(OpenTID(thread),&c);
# elif defined(USE_PTRACE)
return ptrace(PTRACE_POKEUSER,thread,get_reg(reg),value) >= 0;
# else
return false;
# endif
}
HL_API void *hl_debug_read_register( int pid, int thread, int reg, bool is64 ) {
# if defined(HL_WIN)
# ifdef HL_64
if( !is64 ) {
WOW64_CONTEXT c;
c.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS;
if( !Wow64GetThreadContext(OpenTID(thread),&c) )
return NULL;
if( reg == 3 )
return (void*)(int_val)c.EFlags;
return (void*)(int_val)*GetContextReg32(&c,reg);
}
# else
if( is64 ) return NULL;
# endif
CONTEXT c;
c.ContextFlags = CONTEXT_FULL | CONTEXT_DEBUG_REGISTERS;
if( !GetThreadContext(OpenTID(thread),&c) )
return NULL;
if( reg == 3 )
return (void*)(int_val)c.EFlags;
return (void*)*GetContextReg(&c,reg);
# elif defined(USE_PTRACE)
return (void*)ptrace(PTRACE_PEEKUSER,thread,get_reg(reg),0);
# else
return NULL;
# endif
}
_WCRTLINK void _InitExcInfo( _EXCINFO *info )
{
RtlCaptureContext( &info->ContextRecord );
info->InFunction = 1;
info->ControlPC = GetContextReg( &info->ContextRecord, Ra );
_SetPData( info );
_NextExcInfo( info );
}
