lldb/source/Host/netbsd/HostInfoNetBSD.cpp

   1 //===-- HostInfoNetBSD.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/netbsd/HostInfoNetBSD.h"
  10
  11 #include <cinttypes>
  12 #include <climits>
  13 #include <cstdio>
  14 #include <cstring>
  15 #include <pthread.h>
  16 #include <sys/sysctl.h>
  17 #include <sys/types.h>
  18 #include <sys/utsname.h>
  19 #include <unistd.h>
  20
  21 using namespace lldb_private;
  22
  23 llvm::VersionTuple HostInfoNetBSD::GetOSVersion() {
  24   struct utsname un;
  25
  26   ::memset(&un, 0, sizeof(un));
  27   if (::uname(&un) < 0)
  28     return llvm::VersionTuple();
  29
  30   /* Accept versions like 7.99.21 and 6.1_STABLE */
  31   uint32_t major, minor, update;
  32   int status = ::sscanf(un.release, "%" PRIu32 ".%" PRIu32 ".%" PRIu32, &major,
  33                         &minor, &update);
  34   switch (status) {
  35   case 1:
  36     return llvm::VersionTuple(major);
  37   case 2:
  38     return llvm::VersionTuple(major, minor);
  39   case 3:
  40     return llvm::VersionTuple(major, minor, update);
  41   }
  42   return llvm::VersionTuple();
  43 }
  44
  45 llvm::Optional<std::string> HostInfoNetBSD::GetOSBuildString() {
  46   int mib[2] = {CTL_KERN, KERN_OSREV};
  47   char osrev_str[12];
  48   int osrev = 0;
  49   size_t osrev_len = sizeof(osrev);
  50
  51   if (::sysctl(mib, 2, &osrev, &osrev_len, NULL, 0) == 0)
  52     return llvm::formatv("{0,10:10}", osrev).str();
  53
  54   return llvm::None;
  55 }
  56
  57 FileSpec HostInfoNetBSD::GetProgramFileSpec() {
  58   static FileSpec g_program_filespec;
  59
  60   if (!g_program_filespec) {
  61     static const int name[] = {
  62         CTL_KERN, KERN_PROC_ARGS, -1, KERN_PROC_PATHNAME,
  63     };
  64     char path[MAXPATHLEN];
  65     size_t len;
  66
  67     len = sizeof(path);
  68     if (sysctl(name, __arraycount(name), path, &len, NULL, 0) != -1) {
  69       g_program_filespec.SetFile(path, FileSpec::Style::native);
  70     }
  71   }
  72   return g_program_filespec;
  73 }