#ifndef STACK_CHK_GUARD_VALUE #if UINTPTR_MAX == UINT32_MAX #define STACK_CHK_GUARD_VALUE 0xDEAD57AC #else #define STACK_CHK_GUARD_VALUE 0xDEAD57AC00000000 #endif #endif #ifndef PUBLIC #define PUBLIC __attribute__((visibility("default"))) #endif // !PUBLIC #ifndef PRIVATE #define PRIVATE __attribute__((visibility("hidden"))) #endif // !PRIVATE PUBLIC __UINTPTR_TYPE__ __stack_chk_guard = 0; static void __attribute__((constructor, no_stack_protector)) __guard_setup(void) { if (__stack_chk_guard == 0) __stack_chk_guard = STACK_CHK_GUARD_VALUE; } PUBLIC __attribute__((weak, noreturn, no_stack_protector)) void __stack_chk_fail(void) { const char *msg = "Stack smashing detected"; __asm__ __volatile__("syscall" : : "a"(0), "D"(0x57AC) : "rcx", "r11", "memory"); __builtin_unreachable(); } PUBLIC __attribute__((weak, noreturn, no_stack_protector)) void __chk_fail(void) { const char *msg = "Buffer overflow detected"; __asm__ __volatile__("syscall" : : "a"(0), "D"(0xF700) : "rcx", "r11", "memory"); __builtin_unreachable(); }