44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
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// Copyright 2021 The Chromium Authors
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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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#include "base/debug/debugger.h"
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#include <lib/zx/process.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <zircon/process.h>
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#include <zircon/syscalls.h>
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#include "base/debug/alias.h"
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namespace base {
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namespace debug {
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bool BeingDebugged() {
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zx_info_process_t info = {};
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// Ignore failures. The 0-initialization above will result in "false" for
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// error cases.
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zx::process::self()->get_info(ZX_INFO_PROCESS, &info, sizeof(info),
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nullptr, nullptr);
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return (info.flags & ZX_INFO_PROCESS_FLAG_DEBUGGER_ATTACHED) != 0;
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}
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void BreakDebuggerAsyncSafe() {
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// NOTE: This code MUST be async-signal safe (it's used by in-process
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// stack dumping signal handler). NO malloc or stdio is allowed here.
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// Linker's ICF feature may merge this function with other functions with the
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// same definition (e.g. any function whose sole job is to call abort()) and
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// it may confuse the crash report processing system. http://crbug.com/508489
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static int static_variable_to_make_this_function_unique = 0;
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Alias(&static_variable_to_make_this_function_unique);
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abort();
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}
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void VerifyDebugger() {}
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} // namespace debug
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} // namespace base
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