48624bc390
R=yangguo@chromium.org Bug: chromium:921971 Change-Id: Id6715637a883c7606d96d8c4352bae1346cb0ec2 Reviewed-on: https://chromium-review.googlesource.com/c/1411603 Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#58854}
32 lines
1.2 KiB
C++
32 lines
1.2 KiB
C++
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_WASM_TRAP_HANDLER_POSIX_H_
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#define V8_WASM_TRAP_HANDLER_POSIX_H_
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#include <signal.h>
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#include "v8config.h" // NOLINT(build/include)
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namespace v8 {
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/**
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* This function determines whether a memory access violation has been an
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* out-of-bounds memory access in WebAssembly. If so, it will modify the context
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* parameter and add a return address where the execution can continue after the
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* signal handling, and return true. Otherwise, false will be returned.
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*
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* The parameters to this function correspond to those passed to a Posix signal
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* handler. Use this function only on Linux and Mac.
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*
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* \param sig_code The signal code, e.g. SIGSEGV.
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* \param info A pointer to the siginfo_t struct provided to the signal handler.
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* \param context A pointer to a ucontext_t struct provided to the signal
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* handler.
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*/
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V8_EXPORT bool TryHandleWebAssemblyTrapPosix(int sig_code, siginfo_t* info,
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void* context);
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} // namespace v8
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#endif // V8_WASM_TRAP_HANDLER_POSIX_H_
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