| // Copyright 2026 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef UTILS_FORCE_CRASH_H_ |
| #define UTILS_FORCE_CRASH_H_ |
| |
| #include "src/utils/compiler.h" |
| #include "src/utils/platform.h" |
| |
| // DAWN_FORCE_CRASH() |
| // |
| // Immediately causes the program to terminate as fast as possible, at an address that's inside the |
| // function that used the macro, and with a signal that's different from a segfault. |
| #if DAWN_COMPILER_IS(CLANG) || DAWN_COMPILER_IS(GCC) |
| #if DAWN_PLATFORM_IS(X86) |
| #define DAWN_DETAIL_TRAP() asm volatile("int $3\n\t"); |
| #elif DAWN_PLATFORM_IS(ARM32) |
| #define DAWN_DETAIL_TRAP() asm volatile("bkpt 0"); |
| #elif DAWN_PLATFORM_IS(ARM64) |
| #define DAWN_DETAIL_TRAP() asm volatile("brk 0xf000"); |
| #elif DAWN_PLATFORM_IS(LOONGARCH) |
| #define DAWN_DETAIL_TRAP() asm volatile("break 0"); |
| #elif DAWN_PLATFORM_IS(RISCV) |
| #define DAWN_DETAIL_TRAP() asm volatile("ebreak"); |
| #elif DAWN_PLATFORM_IS(MIPS) |
| #define DAWN_DETAIL_TRAP() asm volatile("break"); |
| #elif DAWN_PLATFORM_IS(S390) || DAWN_PLATFORM_IS(S390X) |
| #define DAWN_DETAIL_TRAP() asm volatile(".word 0x0001"); |
| #elif DAWN_PLATFORM_IS(PPC) || DAWN_PLATFORM_IS(PPC64) |
| #define DAWN_DETAIL_TRAP() asm volatile("twge 2,2"); |
| #elif DAWN_PLATFORM_IS(WASM32) || DAWN_PLATFORM_IS(WASM64) |
| #define DAWN_DETAIL_TRAP() EM_ASM(debugger;); |
| #else |
| #error "Unsupported platform" |
| #endif |
| |
| #define DAWN_FORCE_CRASH() \ |
| ({ \ |
| DAWN_DETAIL_TRAP(); \ |
| __builtin_unreachable(); \ |
| }) |
| |
| #elif DAWN_COMPILER_IS(MSVC) |
| #define DAWN_FORCE_CRASH() __debugbreak() |
| |
| #else |
| #error "Unsupported compiler" |
| #endif |
| |
| #endif // UTILS_FORCE_CRASH_H_ |
