0
Files
src/base/linux_util.h
Tomas Popela 5b9b01f71f Get the distribution name from os-release instead of lsb_release
Use the PRETTY_NAME variable from /etc/os-release (or
/usr/lib/os-release) to get the "pretty operating system name in a format
suitable for presentation to the user" as the standard says.

This could allow us to drop a requirement on lsb_release binary on
Linux. The os-release is presented on most new distribution like Fedora,
RHEL 7, CentOS 7, Ubuntu 12.04+, Debian Wheezy+.

More information could be found on
https://www.freedesktop.org/software/systemd/man/os-release.html.

Bug: 420439
Change-Id: If4fc3cd3d22507e47b32d6184ac6ef4ae4b4ff3f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1156504
Commit-Queue: Tomáš Popela <tomas.popela@gmail.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Auto-Submit: Tomáš Popela <tomas.popela@gmail.com>
Cr-Commit-Position: refs/heads/master@{#695280}
2019-09-10 19:42:31 +00:00

58 lines
2.2 KiB
C++

// 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 <vector>
#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();
#if defined(UNIT_TEST)
// Get the value of given key from the given input (content of the
// /etc/os-release file. Exposed for testing.
BASE_EXPORT std::string GetKeyValueFromOSReleaseFileForTesting(
const std::string& input,
const char* key);
#endif // defined(UNIT_TEST)
// Set the Linux Distro string.
BASE_EXPORT void SetLinuxDistro(const std::string& distro);
// For a given process |pid|, get a list of all its threads. On success, returns
// true and appends the list of threads to |tids|. Otherwise, returns false.
BASE_EXPORT bool GetThreadsForProcess(pid_t pid, std::vector<pid_t>* tids);
// 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_