C++ (Cpp) unw_get_save_loc 예제들

예제 #1

파일: seh-unwind.cpp 프로젝트: ravindrapro/coreclr

static void GetContextPointer(unw_cursor_t *cursor, unw_context_t *unwContext, int reg, SIZE_T **contextPointer)
{
#if defined(__APPLE__)
    // Returning NULL indicates that we don't have context pointers available
    *contextPointer = NULL;
#else
    unw_save_loc_t saveLoc;
    unw_get_save_loc(cursor, reg, &saveLoc);
    if (saveLoc.type == UNW_SLT_MEMORY)
    {
        SIZE_T *pLoc = (SIZE_T *)saveLoc.u.addr;
        // Filter out fake save locations that point to unwContext 
        if ((pLoc < (SIZE_T *)unwContext) || ((SIZE_T *)(unwContext + 1) <= pLoc))
            *contextPointer = (SIZE_T *)saveLoc.u.addr;
    }
#endif
}

예제 #2

파일: UnixContext.cpp 프로젝트: OceanYan/corert

// Update context pointer for a register from the unw_cursor_t. 
static void GetContextPointer(unw_cursor_t *cursor, unw_context_t *unwContext, int reg, PTR_UIntNative *contextPointer)
{
#if defined(HAVE_UNW_GET_SAVE_LOC) && defined(CAN_LINK_SHARED_LIBUNWIND)
    unw_save_loc_t saveLoc;
    unw_get_save_loc(cursor, reg, &saveLoc);
    if (saveLoc.type == UNW_SLT_MEMORY)
    {
        PTR_UIntNative pLoc = (PTR_UIntNative)saveLoc.u.addr;
        // Filter out fake save locations that point to unwContext 
        if (unwContext == NULL || (pLoc < (PTR_UIntNative)unwContext) || ((PTR_UIntNative)(unwContext + 1) <= pLoc))
            *contextPointer = (PTR_UIntNative)saveLoc.u.addr;
    }
#else
    // Returning NULL indicates that we don't have context pointers available
    *contextPointer = NULL;
#endif
}