lldb/source/Host/freebsd/HostInfoFreeBSD.cpp

   1 //===-- HostInfoFreeBSD.cpp -----------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "lldb/Host/freebsd/HostInfoFreeBSD.h"
  10 #include "llvm/Support/FormatVariadic.h"
  11 #include <cstdio>
  12 #include <cstring>
  13 #include <optional>
  14 #include <sys/sysctl.h>
  15 #include <sys/types.h>
  16 #include <sys/utsname.h>
  17 #include <unistd.h>
  18
  19 using namespace lldb_private;
  20
  21 llvm::VersionTuple HostInfoFreeBSD::GetOSVersion() {
  22   struct utsname un;
  23
  24   ::memset(&un, 0, sizeof(utsname));
  25   if (uname(&un) < 0)
  26     return llvm::VersionTuple();
  27
  28   unsigned major, minor;
  29   if (2 == sscanf(un.release, "%u.%u", &major, &minor))
  30     return llvm::VersionTuple(major, minor);
  31   return llvm::VersionTuple();
  32 }
  33
  34 std::optional<std::string> HostInfoFreeBSD::GetOSBuildString() {
  35   int mib[2] = {CTL_KERN, KERN_OSREV};
  36   uint32_t osrev = 0;
  37   size_t osrev_len = sizeof(osrev);
  38
  39   if (::sysctl(mib, 2, &osrev, &osrev_len, NULL, 0) == 0)
  40     return llvm::formatv("{0,8:8}", osrev).str();
  41
  42   return std::nullopt;
  43 }
  44
  45 FileSpec HostInfoFreeBSD::GetProgramFileSpec() {
  46   static FileSpec g_program_filespec;
  47   if (!g_program_filespec) {
  48     int exe_path_mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, getpid()};
  49     char exe_path[PATH_MAX];
  50     size_t exe_path_size = sizeof(exe_path);
  51     if (sysctl(exe_path_mib, 4, exe_path, &exe_path_size, NULL, 0) == 0)
  52       g_program_filespec.SetFile(exe_path, FileSpec::Style::native);
  53   }
  54   return g_program_filespec;
  55 }