File: seccomp_support_detector.cc

package info (click to toggle)
chromium 138.0.7204.183-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 6,080,960 kB
  • sloc: cpp: 34,937,079; ansic: 7,176,967; javascript: 4,110,704; python: 1,419,954; asm: 946,768; xml: 739,971; pascal: 187,324; sh: 89,623; perl: 88,663; objc: 79,944; sql: 50,304; cs: 41,786; fortran: 24,137; makefile: 21,811; php: 13,980; tcl: 13,166; yacc: 8,925; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (38 lines) | stat: -rw-r--r-- 1,050 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
 
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/android/seccomp_support_detector.h"

#include <stdio.h>
#include <sys/utsname.h>

#include "base/compiler_specific.h"
#include "base/cpu.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "build/build_config.h"

namespace {

// Reports the kernel version obtained from uname.
void ReportKernelVersion() {
  // This method will report the kernel major and minor versions by
  // taking the lower 16 bits of each version number and combining
  // the two into a 32-bit number.

  utsname uts;
  if (uname(&uts) == 0) {
    int major, minor;
    if (UNSAFE_TODO(sscanf(uts.release, "%d.%d", &major, &minor)) == 2) {
      int version = ((major & 0xFFFF) << 16) | (minor & 0xFFFF);
      base::UmaHistogramSparse("Android.KernelVersion", version);
    }
  }
}

}  // namespace

void ReportSeccompSupport() {
  ReportKernelVersion();
}