diff options
Diffstat (limited to 'lldb/source/Host/freebsd/Host.cpp')
| -rw-r--r-- | lldb/source/Host/freebsd/Host.cpp | 418 |
1 files changed, 199 insertions, 219 deletions
diff --git a/lldb/source/Host/freebsd/Host.cpp b/lldb/source/Host/freebsd/Host.cpp index cf53cda40b1..5b1576260f3 100644 --- a/lldb/source/Host/freebsd/Host.cpp +++ b/lldb/source/Host/freebsd/Host.cpp @@ -1,4 +1,5 @@ -//===-- source/Host/freebsd/Host.cpp ------------------------------*- C++ -*-===// +//===-- source/Host/freebsd/Host.cpp ------------------------------*- C++ +//-*-===// // // The LLVM Compiler Infrastructure // @@ -8,32 +9,32 @@ //===----------------------------------------------------------------------===// // C Includes -#include <stdio.h> #include <dlfcn.h> #include <execinfo.h> +#include <stdio.h> +#include <sys/proc.h> +#include <sys/sysctl.h> #include <sys/types.h> #include <sys/user.h> -#include <sys/sysctl.h> -#include <sys/proc.h> -#include <sys/ptrace.h> -#include <sys/exec.h> #include <machine/elf.h> +#include <sys/exec.h> +#include <sys/ptrace.h> // C++ Includes // Other libraries and framework includes // Project includes +#include "lldb/Core/DataExtractor.h" #include "lldb/Core/Error.h" -#include "lldb/Host/Endian.h" -#include "lldb/Host/Host.h" -#include "lldb/Host/HostInfo.h" +#include "lldb/Core/Log.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/Host/Endian.h" +#include "lldb/Host/Host.h" +#include "lldb/Host/HostInfo.h" #include "lldb/Target/Platform.h" +#include "lldb/Target/Process.h" #include "lldb/Core/DataBufferHeap.h" #include "lldb/Core/DataExtractor.h" @@ -43,241 +44,220 @@ #include "llvm/Support/Host.h" extern "C" { - extern char **environ; +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(); +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 -GetFreeBSDProcessArgs (const ProcessInstanceInfoMatch *match_info_ptr, - ProcessInstanceInfo &process_info) -{ - if (process_info.ProcessIDIsValid()) - { - int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_ARGS, (int)process_info.GetProcessID() }; - - char arg_data[8192]; - size_t arg_data_size = sizeof(arg_data); - if (::sysctl (mib, 4, arg_data, &arg_data_size , NULL, 0) == 0) - { - 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) - { - 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) - return true; - - cstr = data.GetCStr(&offset); - if (cstr) - proc_args.AppendArgument(cstr); - else - return true; - } - } +GetFreeBSDProcessArgs(const ProcessInstanceInfoMatch *match_info_ptr, + ProcessInstanceInfo &process_info) { + if (process_info.ProcessIDIsValid()) { + int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_ARGS, + (int)process_info.GetProcessID()}; + + char arg_data[8192]; + size_t arg_data_size = sizeof(arg_data); + if (::sysctl(mib, 4, arg_data, &arg_data_size, NULL, 0) == 0) { + 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) { + 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) + return true; + + cstr = data.GetCStr(&offset); + if (cstr) + proc_args.AppendArgument(cstr); + else + return true; } + } } - return false; + } + return false; } -static bool -GetFreeBSDProcessCPUType (ProcessInstanceInfo &process_info) -{ - if (process_info.ProcessIDIsValid()) - { - process_info.GetArchitecture() = HostInfo::GetArchitecture(HostInfo::eArchKindDefault); - return true; - } - process_info.GetArchitecture().Clear(); - return false; +static bool GetFreeBSDProcessCPUType(ProcessInstanceInfo &process_info) { + if (process_info.ProcessIDIsValid()) { + process_info.GetArchitecture() = + HostInfo::GetArchitecture(HostInfo::eArchKindDefault); + return true; + } + process_info.GetArchitecture().Clear(); + return false; } -static bool -GetFreeBSDProcessUserAndGroup(ProcessInstanceInfo &process_info) -{ - struct kinfo_proc proc_kinfo; - size_t proc_kinfo_size; - - if (process_info.ProcessIDIsValid()) - { - int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, - (int)process_info.GetProcessID() }; - proc_kinfo_size = sizeof(struct kinfo_proc); - - if (::sysctl (mib, 4, &proc_kinfo, &proc_kinfo_size, NULL, 0) == 0) - { - if (proc_kinfo_size > 0) - { - process_info.SetParentProcessID (proc_kinfo.ki_ppid); - process_info.SetUserID (proc_kinfo.ki_ruid); - process_info.SetGroupID (proc_kinfo.ki_rgid); - process_info.SetEffectiveUserID (proc_kinfo.ki_uid); - if (proc_kinfo.ki_ngroups > 0) - process_info.SetEffectiveGroupID (proc_kinfo.ki_groups[0]); - else - process_info.SetEffectiveGroupID (UINT32_MAX); - return true; - } - } +static bool GetFreeBSDProcessUserAndGroup(ProcessInstanceInfo &process_info) { + struct kinfo_proc proc_kinfo; + size_t proc_kinfo_size; + + if (process_info.ProcessIDIsValid()) { + int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PID, + (int)process_info.GetProcessID()}; + proc_kinfo_size = sizeof(struct kinfo_proc); + + if (::sysctl(mib, 4, &proc_kinfo, &proc_kinfo_size, NULL, 0) == 0) { + if (proc_kinfo_size > 0) { + process_info.SetParentProcessID(proc_kinfo.ki_ppid); + process_info.SetUserID(proc_kinfo.ki_ruid); + process_info.SetGroupID(proc_kinfo.ki_rgid); + process_info.SetEffectiveUserID(proc_kinfo.ki_uid); + if (proc_kinfo.ki_ngroups > 0) + process_info.SetEffectiveGroupID(proc_kinfo.ki_groups[0]); + else + process_info.SetEffectiveGroupID(UINT32_MAX); + return true; + } } - 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; + } + 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) -{ - std::vector<struct kinfo_proc> kinfos; - - int mib[3] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL }; - - size_t pid_data_size = 0; - if (::sysctl (mib, 3, NULL, &pid_data_size, NULL, 0) != 0) - return 0; - - // Add a few extra in case a few more show up - const size_t estimated_pid_count = (pid_data_size / sizeof(struct kinfo_proc)) + 10; - - kinfos.resize (estimated_pid_count); - pid_data_size = kinfos.size() * sizeof(struct kinfo_proc); - - if (::sysctl (mib, 3, &kinfos[0], &pid_data_size, NULL, 0) != 0) - return 0; - - const size_t actual_pid_count = (pid_data_size / sizeof(struct kinfo_proc)); - - bool all_users = match_info.GetMatchAllUsers(); - const ::pid_t our_pid = getpid(); - const uid_t our_uid = getuid(); - for (size_t i = 0; i < actual_pid_count; i++) - { - const struct kinfo_proc &kinfo = kinfos[i]; - const bool kinfo_user_matches = (all_users || - (kinfo.ki_ruid == our_uid) || - // Special case, if lldb is being run as root we can attach to anything. - (our_uid == 0) - ); - - if (kinfo_user_matches == false || // Make sure the user is acceptable - kinfo.ki_pid == our_pid || // Skip this process - kinfo.ki_pid == 0 || // Skip kernel (kernel pid is zero) - kinfo.ki_stat == SZOMB || // Zombies are bad, they like brains... - kinfo.ki_flag & P_TRACED || // Being debugged? - kinfo.ki_flag & P_WEXIT) // Working on exiting - continue; - - // Every thread is a process in FreeBSD, 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. - bool already_registered = false; - for (uint32_t pi = 0; - !already_registered && - (const int)kinfo.ki_numthreads > 1 && - pi < (const uint32_t)process_infos.GetSize(); pi++) - already_registered = (process_infos.GetProcessIDAtIndex(pi) == (uint32_t)kinfo.ki_pid); - - if (already_registered) - continue; - - ProcessInstanceInfo process_info; - process_info.SetProcessID (kinfo.ki_pid); - process_info.SetParentProcessID (kinfo.ki_ppid); - process_info.SetUserID (kinfo.ki_ruid); - process_info.SetGroupID (kinfo.ki_rgid); - process_info.SetEffectiveUserID (kinfo.ki_svuid); - process_info.SetEffectiveGroupID (kinfo.ki_svgid); - - // Make sure our info matches before we go fetch the name and cpu type - if (match_info.Matches (process_info) && - GetFreeBSDProcessArgs (&match_info, process_info)) - { - GetFreeBSDProcessCPUType (process_info); - if (match_info.Matches (process_info)) - process_infos.Append (process_info); - } +uint32_t Host::FindProcesses(const ProcessInstanceInfoMatch &match_info, + ProcessInstanceInfoList &process_infos) { + std::vector<struct kinfo_proc> kinfos; + + int mib[3] = {CTL_KERN, KERN_PROC, KERN_PROC_ALL}; + + size_t pid_data_size = 0; + if (::sysctl(mib, 3, NULL, &pid_data_size, NULL, 0) != 0) + return 0; + + // Add a few extra in case a few more show up + const size_t estimated_pid_count = + (pid_data_size / sizeof(struct kinfo_proc)) + 10; + + kinfos.resize(estimated_pid_count); + pid_data_size = kinfos.size() * sizeof(struct kinfo_proc); + + if (::sysctl(mib, 3, &kinfos[0], &pid_data_size, NULL, 0) != 0) + return 0; + + const size_t actual_pid_count = (pid_data_size / sizeof(struct kinfo_proc)); + + bool all_users = match_info.GetMatchAllUsers(); + const ::pid_t our_pid = getpid(); + const uid_t our_uid = getuid(); + for (size_t i = 0; i < actual_pid_count; i++) { + const struct kinfo_proc &kinfo = kinfos[i]; + const bool kinfo_user_matches = (all_users || (kinfo.ki_ruid == our_uid) || + // Special case, if lldb is being run as + // root we can attach to anything. + (our_uid == 0)); + + if (kinfo_user_matches == false || // Make sure the user is acceptable + kinfo.ki_pid == our_pid || // Skip this process + kinfo.ki_pid == 0 || // Skip kernel (kernel pid is zero) + kinfo.ki_stat == SZOMB || // Zombies are bad, they like brains... + kinfo.ki_flag & P_TRACED || // Being debugged? + kinfo.ki_flag & P_WEXIT) // Working on exiting + continue; + + // Every thread is a process in FreeBSD, 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. + bool already_registered = false; + for (uint32_t pi = 0; + !already_registered && (const int)kinfo.ki_numthreads > 1 && + pi < (const uint32_t)process_infos.GetSize(); + pi++) + already_registered = + (process_infos.GetProcessIDAtIndex(pi) == (uint32_t)kinfo.ki_pid); + + if (already_registered) + continue; + + ProcessInstanceInfo process_info; + process_info.SetProcessID(kinfo.ki_pid); + process_info.SetParentProcessID(kinfo.ki_ppid); + process_info.SetUserID(kinfo.ki_ruid); + process_info.SetGroupID(kinfo.ki_rgid); + process_info.SetEffectiveUserID(kinfo.ki_svuid); + process_info.SetEffectiveGroupID(kinfo.ki_svgid); + + // Make sure our info matches before we go fetch the name and cpu type + if (match_info.Matches(process_info) && + GetFreeBSDProcessArgs(&match_info, process_info)) { + GetFreeBSDProcessCPUType(process_info); + if (match_info.Matches(process_info)) + process_infos.Append(process_info); } + } - return process_infos.GetSize(); + return process_infos.GetSize(); } -bool -Host::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) -{ - process_info.SetProcessID(pid); +bool Host::GetProcessInfo(lldb::pid_t pid, ProcessInstanceInfo &process_info) { + process_info.SetProcessID(pid); - if (GetFreeBSDProcessArgs(NULL, process_info)) - { - // should use libprocstat instead of going right into sysctl? - GetFreeBSDProcessCPUType(process_info); - GetFreeBSDProcessUserAndGroup(process_info); - return true; - } + if (GetFreeBSDProcessArgs(NULL, process_info)) { + // should use libprocstat instead of going right into sysctl? + GetFreeBSDProcessCPUType(process_info); + GetFreeBSDProcessUserAndGroup(process_info); + return true; + } - process_info.Clear(); - return false; + process_info.Clear(); + return false; } -lldb::DataBufferSP -Host::GetAuxvData(lldb_private::Process *process) -{ - int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_AUXV, 0 }; - size_t auxv_size = AT_COUNT * sizeof(Elf_Auxinfo); - DataBufferSP buf_sp; +lldb::DataBufferSP Host::GetAuxvData(lldb_private::Process *process) { + int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_AUXV, 0}; + size_t auxv_size = AT_COUNT * sizeof(Elf_Auxinfo); + DataBufferSP buf_sp; - std::unique_ptr<DataBufferHeap> buf_ap(new DataBufferHeap(auxv_size, 0)); + std::unique_ptr<DataBufferHeap> buf_ap(new DataBufferHeap(auxv_size, 0)); - mib[3] = process->GetID(); - if (::sysctl(mib, 4, buf_ap->GetBytes(), &auxv_size, NULL, 0) == 0) { - buf_sp.reset(buf_ap.release()); - } else { - perror("sysctl failed on auxv"); - } + mib[3] = process->GetID(); + if (::sysctl(mib, 4, buf_ap->GetBytes(), &auxv_size, NULL, 0) == 0) { + buf_sp.reset(buf_ap.release()); + } else { + perror("sysctl failed on auxv"); + } - return buf_sp; + return buf_sp; } -Error -Host::ShellExpandArguments (ProcessLaunchInfo &launch_info) -{ - return Error("unimplemented"); +Error Host::ShellExpandArguments(ProcessLaunchInfo &launch_info) { + return Error("unimplemented"); } - |
