diff options
Diffstat (limited to 'contrib/llvm/tools/lldb/source/Host/netbsd/Host.cpp')
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Host/netbsd/Host.cpp | 393 |
1 files changed, 187 insertions, 206 deletions
diff --git a/contrib/llvm/tools/lldb/source/Host/netbsd/Host.cpp b/contrib/llvm/tools/lldb/source/Host/netbsd/Host.cpp index 8742850..717af9b 100644 --- a/contrib/llvm/tools/lldb/source/Host/netbsd/Host.cpp +++ b/contrib/llvm/tools/lldb/source/Host/netbsd/Host.cpp @@ -1,4 +1,5 @@ -//===-- source/Host/netbsd/Host.cpp ------------------------------*- C++ -*-===// +//===-- source/Host/netbsd/Host.cpp ------------------------------*- C++ +//-*-===// // // The LLVM Compiler Infrastructure // @@ -8,35 +9,35 @@ //===----------------------------------------------------------------------===// // 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 <limits.h> -#include <sys/ptrace.h> -#include <sys/exec.h> #include <elf.h> #include <kvm.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" @@ -46,242 +47,222 @@ #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 -GetNetBSDProcessArgs (const ProcessInstanceInfoMatch *match_info_ptr, - ProcessInstanceInfo &process_info) -{ - if (!process_info.ProcessIDIsValid()) - return false; +static bool GetNetBSDProcessArgs(const ProcessInstanceInfoMatch *match_info_ptr, + ProcessInstanceInfo &process_info) { + if (!process_info.ProcessIDIsValid()) + return false; + + int pid = process_info.GetProcessID(); - int pid = process_info.GetProcessID(); + int mib[4] = {CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_ARGV}; - 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; - 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; - 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; - 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; + process_info.GetExecutableFile().SetFile(cstr, false); - cstr = data.GetCStr(&offset); - if (!cstr) - break; + if (!(match_info_ptr == NULL || + NameMatches(process_info.GetExecutableFile().GetFilename().GetCString(), + match_info_ptr->GetNameMatchType(), + match_info_ptr->GetProcessInfo().GetName()))) + return false; - proc_args.AppendArgument(cstr); + 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; - return true; + cstr = data.GetCStr(&offset); + if (!cstr) + break; + + proc_args.AppendArgument(llvm::StringRef(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 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 */ +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; + struct ::kinfo_proc2 *proc_kinfo; + const int pid = process_info.GetProcessID(); + int nproc; - if (!process_info.ProcessIDIsValid()) - goto error; + if (!process_info.ProcessIDIsValid()) + goto error; - if ((kdp = ::kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL) - 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 ((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; - } + 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); + 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 */ + ::kvm_close(kdp); /* XXX: we don't check for error here */ - return true; + 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; + 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); +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 */ + kvm_close(kdp); /* XXX: we don't check for error here */ - 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 (GetNetBSDProcessArgs(NULL, process_info)) - { - GetNetBSDProcessCPUType(process_info); - GetNetBSDProcessUserAndGroup(process_info); - return true; - } + if (GetNetBSDProcessArgs(NULL, process_info)) { + GetNetBSDProcessCPUType(process_info); + GetNetBSDProcessUserAndGroup(process_info); + return true; + } - process_info.Clear(); - return false; + process_info.Clear(); + return false; } -lldb::DataBufferSP -Host::GetAuxvData(lldb_private::Process *process) -{ - return lldb::DataBufferSP(); +lldb::DataBufferSP Host::GetAuxvData(lldb_private::Process *process) { + return lldb::DataBufferSP(); } -Error -Host::ShellExpandArguments (ProcessLaunchInfo &launch_info) -{ - return Error("unimplemented"); +Error Host::ShellExpandArguments(ProcessLaunchInfo &launch_info) { + return Error("unimplemented"); } |
