llvm-project/lldb/source/Host/openbsd/HostInfoOpenBSD.cpp
Kamil Rytarowski 12801f1e0f [LLDB] OpenBSD support
Summary:
Add basic OpenBSD support. This is enough to be able to analyze core dumps for OpenBSD/amd64, OpenBSD/arm, OpenBSD/arm64 and OpenBSD/i386.

Note that part of the changes to source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp fix a bug that probably affects other platforms as well.  The GetProgramHeaderByIndex() interface use 1-based indices, but in some case when looping over the headers the, the loop starts at 0 and misses the last header.  This caused problems on OpenBSD since OpenBSD core dumps have the PT_NOTE segment as the last program header.


Reviewers: joerg, labath, krytarowski

Reviewed By: krytarowski

Subscribers: aemerson, emaste, rengolin, srhines, krytarowski, mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D31131

llvm-svn: 298810
2017-03-26 15:34:57 +00:00

66 lines
1.5 KiB
C++

//===-- HostInfoOpenBSD.cpp -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Host/openbsd/HostInfoOpenBSD.h"
#include <stdio.h>
#include <string.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <sys/utsname.h>
using namespace lldb_private;
bool HostInfoOpenBSD::GetOSVersion(uint32_t &major, uint32_t &minor,
uint32_t &update) {
struct utsname un;
::memset(&un, 0, sizeof(utsname));
if (uname(&un) < 0)
return false;
int status = sscanf(un.release, "%u.%u", &major, &minor);
return status == 2;
}
bool HostInfoOpenBSD::GetOSBuildString(std::string &s) {
int mib[2] = {CTL_KERN, KERN_OSREV};
char osrev_str[12];
uint32_t osrev = 0;
size_t osrev_len = sizeof(osrev);
if (::sysctl(mib, 2, &osrev, &osrev_len, NULL, 0) == 0) {
::snprintf(osrev_str, sizeof(osrev_str), "%-8.8u", osrev);
s.assign(osrev_str);
return true;
}
s.clear();
return false;
}
bool HostInfoOpenBSD::GetOSKernelDescription(std::string &s) {
struct utsname un;
::memset(&un, 0, sizeof(utsname));
s.clear();
if (uname(&un) < 0)
return false;
s.assign(un.version);
return true;
}
FileSpec HostInfoOpenBSD::GetProgramFileSpec() {
static FileSpec g_program_filespec;
return g_program_filespec;
}