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// Copyright (c) 2012 The Chromium 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 BASE_LINUX_UTIL_H_
#define BASE_LINUX_UTIL_H_
#include <stdint.h>
#include <sys/types.h>
#include <string>
#include "base/base_export.h"
namespace base {
// This is declared here so the crash reporter can access the memory directly
// in compromised context without going through the standard library.
BASE_EXPORT extern char g_linux_distro[];
// Get the Linux Distro if we can, or return "Unknown".
BASE_EXPORT std::string GetLinuxDistro();
// Set the Linux Distro string.
BASE_EXPORT void SetLinuxDistro(const std::string& distro);
// For a given process |pid|, look through all its threads and find the first
// thread with /proc/[pid]/task/[thread_id]/syscall whose first N bytes matches
// |expected_data|, where N is the length of |expected_data|.
// Returns the thread id or -1 on error. If |syscall_supported| is
// set to false the kernel does not support syscall in procfs.
BASE_EXPORT pid_t FindThreadIDWithSyscall(pid_t pid,
const std::string& expected_data,
bool* syscall_supported);
// For a given process |pid|, look through all its threads and find the first
// thread with /proc/[pid]/task/[thread_id]/status where NSpid matches |ns_tid|.
// Returns the thread id or -1 on error. If |ns_pid_supported| is
// set to false the kernel does not support NSpid in procfs.
BASE_EXPORT pid_t FindThreadID(pid_t pid, pid_t ns_tid, bool* ns_pid_supported);
} // namespace base
#endif // BASE_LINUX_UTIL_H_
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