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author | dim <dim@FreeBSD.org> | 2015-12-30 11:55:28 +0000 |
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committer | dim <dim@FreeBSD.org> | 2015-12-30 11:55:28 +0000 |
commit | 66b75430a93929d6fc6ed63db14ca28e3ad5b1f6 (patch) | |
tree | 9ed5e1a91f242e2cb5911577356e487a55c01b78 /source/Host/netbsd | |
parent | 23814158e5384f73c6fa951b66d5f807f9c24a2b (diff) | |
download | FreeBSD-src-66b75430a93929d6fc6ed63db14ca28e3ad5b1f6.zip FreeBSD-src-66b75430a93929d6fc6ed63db14ca28e3ad5b1f6.tar.gz |
Vendor import of stripped lldb trunk r256633:
https://llvm.org/svn/llvm-project/lldb/trunk@256633
Diffstat (limited to 'source/Host/netbsd')
-rw-r--r-- | source/Host/netbsd/Host.cpp | 287 | ||||
-rw-r--r-- | source/Host/netbsd/HostInfoNetBSD.cpp | 112 | ||||
-rw-r--r-- | source/Host/netbsd/HostThreadNetBSD.cpp | 50 | ||||
-rw-r--r-- | source/Host/netbsd/ThisThread.cpp | 30 |
4 files changed, 479 insertions, 0 deletions
diff --git a/source/Host/netbsd/Host.cpp b/source/Host/netbsd/Host.cpp new file mode 100644 index 0000000..8742850 --- /dev/null +++ b/source/Host/netbsd/Host.cpp @@ -0,0 +1,287 @@ +//===-- source/Host/netbsd/Host.cpp ------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// C Includes +#include <stdio.h> +#include <dlfcn.h> +#include <execinfo.h> +#include <sys/types.h> +#include <sys/user.h> +#include <sys/sysctl.h> +#include <sys/proc.h> + +#include <limits.h> + +#include <sys/ptrace.h> +#include <sys/exec.h> +#include <elf.h> +#include <kvm.h> + +// C++ Includes +// Other libraries and framework includes +// Project includes +#include "lldb/Core/Error.h" +#include "lldb/Host/Endian.h" +#include "lldb/Host/Host.h" +#include "lldb/Host/HostInfo.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/DataExtractor.h" +#include "lldb/Core/StreamFile.h" +#include "lldb/Core/StreamString.h" +#include "lldb/Core/Log.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/Platform.h" + +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/DataExtractor.h" +#include "lldb/Utility/CleanUp.h" +#include "lldb/Utility/NameMatches.h" + +#include "llvm/Support/Host.h" + +extern "C" { + extern char **environ; +} + +using namespace lldb; +using namespace lldb_private; + +size_t +Host::GetEnvironment (StringList &env) +{ + char *v; + char **var = environ; + for (; var != NULL && *var != NULL; ++var) + { + v = ::strchr(*var, (int)'-'); + if (v == NULL) + continue; + env.AppendString(v); + } + return env.GetSize(); +} + +static bool +GetNetBSDProcessArgs (const ProcessInstanceInfoMatch *match_info_ptr, + ProcessInstanceInfo &process_info) +{ + if (!process_info.ProcessIDIsValid()) + return false; + + int pid = process_info.GetProcessID(); + + int mib[4] = { CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_ARGV }; + + char arg_data[8192]; + size_t arg_data_size = sizeof(arg_data); + if (::sysctl (mib, 4, arg_data, &arg_data_size , NULL, 0) != 0) + return false; + + DataExtractor data (arg_data, arg_data_size, endian::InlHostByteOrder(), sizeof(void *)); + lldb::offset_t offset = 0; + const char *cstr; + + cstr = data.GetCStr (&offset); + if (!cstr) + return false; + + process_info.GetExecutableFile().SetFile(cstr, false); + + if (!(match_info_ptr == NULL || + NameMatches (process_info.GetExecutableFile().GetFilename().GetCString(), + match_info_ptr->GetNameMatchType(), + match_info_ptr->GetProcessInfo().GetName()))) + return false; + + Args &proc_args = process_info.GetArguments(); + while (1) + { + const uint8_t *p = data.PeekData(offset, 1); + while ((p != NULL) && (*p == '\0') && offset < arg_data_size) + { + ++offset; + p = data.PeekData(offset, 1); + } + if (p == NULL || offset >= arg_data_size) + break; + + cstr = data.GetCStr(&offset); + if (!cstr) + break; + + proc_args.AppendArgument(cstr); + } + + return true; +} + +static bool +GetNetBSDProcessCPUType (ProcessInstanceInfo &process_info) +{ + if (process_info.ProcessIDIsValid()) + { + process_info.GetArchitecture() = HostInfo::GetArchitecture(HostInfo::eArchKindDefault); + return true; + } + process_info.GetArchitecture().Clear(); + return false; +} + +static bool +GetNetBSDProcessUserAndGroup(ProcessInstanceInfo &process_info) +{ + ::kvm_t *kdp; + char errbuf[_POSIX2_LINE_MAX]; /* XXX: error string unused */ + + struct ::kinfo_proc2 *proc_kinfo; + const int pid = process_info.GetProcessID(); + int nproc; + + if (!process_info.ProcessIDIsValid()) + goto error; + + if ((kdp = ::kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL) + goto error; + + if ((proc_kinfo = ::kvm_getproc2(kdp, KERN_PROC_PID, pid, + sizeof(struct ::kinfo_proc2), + &nproc)) == NULL) { + ::kvm_close(kdp); + goto error; + } + + if (nproc < 1) { + ::kvm_close(kdp); /* XXX: we don't check for error here */ + goto error; + } + + process_info.SetParentProcessID (proc_kinfo->p_ppid); + process_info.SetUserID (proc_kinfo->p_ruid); + process_info.SetGroupID (proc_kinfo->p_rgid); + process_info.SetEffectiveUserID (proc_kinfo->p_uid); + process_info.SetEffectiveGroupID (proc_kinfo->p_gid); + + ::kvm_close(kdp); /* XXX: we don't check for error here */ + + return true; + +error: + process_info.SetParentProcessID (LLDB_INVALID_PROCESS_ID); + process_info.SetUserID (UINT32_MAX); + process_info.SetGroupID (UINT32_MAX); + process_info.SetEffectiveUserID (UINT32_MAX); + process_info.SetEffectiveGroupID (UINT32_MAX); + return false; +} + +uint32_t +Host::FindProcesses (const ProcessInstanceInfoMatch &match_info, ProcessInstanceInfoList &process_infos) +{ + const ::pid_t our_pid = ::getpid(); + const ::uid_t our_uid = ::getuid(); + + const bool all_users = match_info.GetMatchAllUsers() || + // Special case, if lldb is being run as root we can attach to anything + (our_uid == 0); + + kvm_t *kdp; + char errbuf[_POSIX2_LINE_MAX]; /* XXX: error string unused */ + if ((kdp = ::kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL) + return 0; + + struct ::kinfo_proc2 *proc_kinfo; + int nproc; + if ((proc_kinfo = ::kvm_getproc2(kdp, KERN_PROC_ALL, 0, + sizeof(struct ::kinfo_proc2), + &nproc)) == NULL) { + ::kvm_close(kdp); + return 0; + } + + for (int i = 0; i < nproc; i++) { + if (proc_kinfo[i].p_pid < 1) + continue; /* not valid */ + /* Make sure the user is acceptable */ + if (!all_users && proc_kinfo[i].p_ruid != our_uid) + continue; + + if (proc_kinfo[i].p_pid == our_pid || // Skip this process + proc_kinfo[i].p_pid == 0 || // Skip kernel (kernel pid is 0) + proc_kinfo[i].p_stat == LSZOMB || // Zombies are bad + proc_kinfo[i].p_flag & P_TRACED || // Being debugged? + proc_kinfo[i].p_flag & P_WEXIT) // Working on exiting + continue; + + + // Every thread is a process in NetBSD, but all the threads of a single + // process have the same pid. Do not store the process info in the + // result list if a process with given identifier is already registered + // there. + if (proc_kinfo[i].p_nlwps > 1) { + bool already_registered = false; + for (size_t pi = 0; pi < process_infos.GetSize(); pi++) { + if (process_infos.GetProcessIDAtIndex(pi) == + proc_kinfo[i].p_pid) { + already_registered = true; + break; + } + } + + if (already_registered) + continue; + } + ProcessInstanceInfo process_info; + process_info.SetProcessID (proc_kinfo[i].p_pid); + process_info.SetParentProcessID (proc_kinfo[i].p_ppid); + process_info.SetUserID (proc_kinfo[i].p_ruid); + process_info.SetGroupID (proc_kinfo[i].p_rgid); + process_info.SetEffectiveUserID (proc_kinfo[i].p_uid); + process_info.SetEffectiveGroupID (proc_kinfo[i].p_gid); + // Make sure our info matches before we go fetch the name and cpu type + if (match_info.Matches (process_info) && + GetNetBSDProcessArgs (&match_info, process_info)) + { + GetNetBSDProcessCPUType (process_info); + if (match_info.Matches (process_info)) + process_infos.Append (process_info); + } + } + + kvm_close(kdp); /* XXX: we don't check for error here */ + + return process_infos.GetSize(); +} + +bool +Host::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) +{ + process_info.SetProcessID(pid); + + if (GetNetBSDProcessArgs(NULL, process_info)) + { + GetNetBSDProcessCPUType(process_info); + GetNetBSDProcessUserAndGroup(process_info); + return true; + } + + process_info.Clear(); + return false; +} + +lldb::DataBufferSP +Host::GetAuxvData(lldb_private::Process *process) +{ + return lldb::DataBufferSP(); +} + +Error +Host::ShellExpandArguments (ProcessLaunchInfo &launch_info) +{ + return Error("unimplemented"); +} diff --git a/source/Host/netbsd/HostInfoNetBSD.cpp b/source/Host/netbsd/HostInfoNetBSD.cpp new file mode 100644 index 0000000..aadda76 --- /dev/null +++ b/source/Host/netbsd/HostInfoNetBSD.cpp @@ -0,0 +1,112 @@ +//===-- HostInfoNetBSD.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/netbsd/HostInfoNetBSD.h" + +#include <limits.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#include <sys/sysctl.h> +#include <sys/utsname.h> +#include <unistd.h> +#include <pthread.h> +#include <inttypes.h> + + +using namespace lldb_private; + +uint32_t +HostInfoNetBSD::GetMaxThreadNameLength() +{ + return PTHREAD_MAX_NAMELEN_NP; +} + +bool +HostInfoNetBSD::GetOSVersion(uint32_t &major, uint32_t &minor, uint32_t &update) +{ + struct utsname un; + + ::memset(&un, 0, sizeof(un)); + if (::uname(&un) < 0) + return false; + + /* Accept versions like 7.99.21 and 6.1_STABLE */ + int status = ::sscanf(un.release, "%" PRIu32 ".%" PRIu32 ".%" PRIu32, &major, &minor, &update); + switch(status) { + case 0: + return false; + case 1: + minor = 0; + /* FALLTHROUGH */ + case 2: + update = 0; + /* FALLTHROUGH */ + case 3: + default: + return true; + } +} + +bool +HostInfoNetBSD::GetOSBuildString(std::string &s) +{ + int mib[2] = {CTL_KERN, KERN_OSREV}; + char osrev_str[12]; + int osrev = 0; + size_t osrev_len = sizeof(osrev); + + if (::sysctl(mib, 2, &osrev, &osrev_len, NULL, 0) == 0) + { + ::snprintf(osrev_str, sizeof(osrev_str), "%-10.10d", osrev); + s.assign(osrev_str); + return true; + } + + s.clear(); + return false; +} + +bool +HostInfoNetBSD::GetOSKernelDescription(std::string &s) +{ + struct utsname un; + + ::memset(&un, 0, sizeof(un)); + s.clear(); + + if (::uname(&un) < 0) + return false; + + s.assign(un.version); + + return true; +} + +FileSpec +HostInfoNetBSD::GetProgramFileSpec() +{ + static FileSpec g_program_filespec; + + if (!g_program_filespec) + { + ssize_t len; + static char buf[PATH_MAX]; + char name[PATH_MAX]; + + ::snprintf(name, PATH_MAX, "/proc/%d/exe", ::getpid()); + len = ::readlink(name, buf, PATH_MAX - 1); + if (len != -1) + { + buf[len] = '\0'; + g_program_filespec.SetFile(buf, false); + } + } + return g_program_filespec; +} diff --git a/source/Host/netbsd/HostThreadNetBSD.cpp b/source/Host/netbsd/HostThreadNetBSD.cpp new file mode 100644 index 0000000..06bc502 --- /dev/null +++ b/source/Host/netbsd/HostThreadNetBSD.cpp @@ -0,0 +1,50 @@ +//===-- HostThreadNetBSD.cpp -----------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// lldb Includes +#include "lldb/Host/netbsd/HostThreadNetBSD.h" +#include "lldb/Host/Host.h" + +// C includes +#include <errno.h> +#include <pthread.h> +#include <stdlib.h> +#include <string.h> +#include <sys/sysctl.h> +#include <sys/user.h> + +// C++ includes +#include <string> + +using namespace lldb_private; + +HostThreadNetBSD::HostThreadNetBSD() +{ +} + +HostThreadNetBSD::HostThreadNetBSD(lldb::thread_t thread) + : HostThreadPosix(thread) +{ +} + +void +HostThreadNetBSD::SetName(lldb::thread_t thread, llvm::StringRef &name) +{ + ::pthread_setname_np(thread, "%s", const_cast<char*>(name.data())); +} + +void +HostThreadNetBSD::GetName(lldb::thread_t thread, llvm::SmallVectorImpl<char> &name) +{ + char buf[PTHREAD_MAX_NAMELEN_NP]; + ::pthread_getname_np(thread, buf, PTHREAD_MAX_NAMELEN_NP); + + name.clear(); + name.append(buf, buf + strlen(buf)); +} diff --git a/source/Host/netbsd/ThisThread.cpp b/source/Host/netbsd/ThisThread.cpp new file mode 100644 index 0000000..dff5d9e --- /dev/null +++ b/source/Host/netbsd/ThisThread.cpp @@ -0,0 +1,30 @@ +//===-- ThisThread.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/HostNativeThread.h" +#include "lldb/Host/ThisThread.h" + +#include "llvm/ADT/SmallVector.h" + +#include <pthread.h> +#include <string.h> + +using namespace lldb_private; + +void +ThisThread::SetName(llvm::StringRef name) +{ + HostNativeThread::SetName(::pthread_self(), name); +} + +void +ThisThread::GetName(llvm::SmallVectorImpl<char> &name) +{ + HostNativeThread::GetName(::pthread_self(), name); +} |