| // Copyright 2020 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <stdlib.h> |
| #include <zircon/assert.h> |
| |
| void abort() { ZX_PANIC("abort() called!\n"); } |
| |
| // The compiler generates calls to this for -fstack-protector. |
| extern "C" void __stack_chk_fail(); |
| |
| extern "C" void __stack_chk_fail() { |
| // By trapping instead of panicking, we'll preserve more register state and |
| // the exception handler will dump that state to the serial port or crash log. |
| // If we're lucky the registers will still contain both the actual and |
| // expected stack guard values so we can disambiguate stack corruption from |
| // arch_thread / percpu struct corruption. |
| __builtin_trap(); |
| } |
