| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_WASM_TRAP_HANDLER_POSIX_H_ |
| #define V8_WASM_TRAP_HANDLER_POSIX_H_ |
| |
| #include <signal.h> |
| |
| #include "v8config.h" // NOLINT(build/include_directory) |
| |
| namespace v8 { |
| /** |
| * This function determines whether a memory access violation has been an |
| * out-of-bounds memory access in WebAssembly. If so, it will modify the context |
| * parameter and add a return address where the execution can continue after the |
| * signal handling, and return true. Otherwise, false will be returned. |
| * |
| * The parameters to this function correspond to those passed to a Posix signal |
| * handler. Use this function only on Linux and Mac. |
| * |
| * \param sig_code The signal code, e.g. SIGSEGV. |
| * \param info A pointer to the siginfo_t struct provided to the signal handler. |
| * \param context A pointer to a ucontext_t struct provided to the signal |
| * handler. |
| */ |
| V8_EXPORT bool TryHandleWebAssemblyTrapPosix(int sig_code, siginfo_t* info, |
| void* context); |
| |
| } // namespace v8 |
| #endif // V8_WASM_TRAP_HANDLER_POSIX_H_ |
