1 //===-- source/Host/netbsd/Host.cpp -----------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
15 #include <sys/sysctl.h>
16 #include <sys/types.h>
23 #include <sys/ptrace.h>
26 // Other libraries and framework includes
28 #include "lldb/Host/Host.h"
29 #include "lldb/Host/HostInfo.h"
30 #include "lldb/Target/Process.h"
31 #include "lldb/Utility/DataBufferHeap.h"
32 #include "lldb/Utility/DataExtractor.h"
33 #include "lldb/Utility/Endian.h"
34 #include "lldb/Utility/Log.h"
35 #include "lldb/Utility/NameMatches.h"
36 #include "lldb/Utility/Status.h"
37 #include "lldb/Utility/StreamString.h"
39 #include "llvm/Support/Host.h"
42 extern char **environ;
46 using namespace lldb_private;
48 Environment Host::GetEnvironment() { return Environment(environ); }
50 static bool GetNetBSDProcessArgs(const ProcessInstanceInfoMatch *match_info_ptr,
51 ProcessInstanceInfo &process_info) {
52 if (!process_info.ProcessIDIsValid())
55 int pid = process_info.GetProcessID();
57 int mib[4] = {CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_ARGV};
60 size_t arg_data_size = sizeof(arg_data);
61 if (::sysctl(mib, 4, arg_data, &arg_data_size, NULL, 0) != 0)
64 DataExtractor data(arg_data, arg_data_size, endian::InlHostByteOrder(),
66 lldb::offset_t offset = 0;
69 cstr = data.GetCStr(&offset);
73 process_info.GetExecutableFile().SetFile(cstr, false,
74 FileSpec::Style::native);
76 if (!(match_info_ptr == NULL ||
77 NameMatches(process_info.GetExecutableFile().GetFilename().GetCString(),
78 match_info_ptr->GetNameMatchType(),
79 match_info_ptr->GetProcessInfo().GetName())))
82 Args &proc_args = process_info.GetArguments();
84 const uint8_t *p = data.PeekData(offset, 1);
85 while ((p != NULL) && (*p == '\0') && offset < arg_data_size) {
87 p = data.PeekData(offset, 1);
89 if (p == NULL || offset >= arg_data_size)
92 cstr = data.GetCStr(&offset);
96 proc_args.AppendArgument(llvm::StringRef(cstr));
102 static bool GetNetBSDProcessCPUType(ProcessInstanceInfo &process_info) {
103 if (process_info.ProcessIDIsValid()) {
104 process_info.GetArchitecture() =
105 HostInfo::GetArchitecture(HostInfo::eArchKindDefault);
108 process_info.GetArchitecture().Clear();
112 static bool GetNetBSDProcessUserAndGroup(ProcessInstanceInfo &process_info) {
114 char errbuf[_POSIX2_LINE_MAX]; /* XXX: error string unused */
116 struct ::kinfo_proc2 *proc_kinfo;
117 const int pid = process_info.GetProcessID();
120 if (!process_info.ProcessIDIsValid())
123 if ((kdp = ::kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL)
126 if ((proc_kinfo = ::kvm_getproc2(kdp, KERN_PROC_PID, pid,
127 sizeof(struct ::kinfo_proc2), &nproc)) ==
134 ::kvm_close(kdp); /* XXX: we don't check for error here */
138 process_info.SetParentProcessID(proc_kinfo->p_ppid);
139 process_info.SetUserID(proc_kinfo->p_ruid);
140 process_info.SetGroupID(proc_kinfo->p_rgid);
141 process_info.SetEffectiveUserID(proc_kinfo->p_uid);
142 process_info.SetEffectiveGroupID(proc_kinfo->p_gid);
144 ::kvm_close(kdp); /* XXX: we don't check for error here */
149 process_info.SetParentProcessID(LLDB_INVALID_PROCESS_ID);
150 process_info.SetUserID(UINT32_MAX);
151 process_info.SetGroupID(UINT32_MAX);
152 process_info.SetEffectiveUserID(UINT32_MAX);
153 process_info.SetEffectiveGroupID(UINT32_MAX);
157 uint32_t Host::FindProcesses(const ProcessInstanceInfoMatch &match_info,
158 ProcessInstanceInfoList &process_infos) {
159 const ::pid_t our_pid = ::getpid();
160 const ::uid_t our_uid = ::getuid();
162 const bool all_users =
163 match_info.GetMatchAllUsers() ||
164 // Special case, if lldb is being run as root we can attach to anything
168 char errbuf[_POSIX2_LINE_MAX]; /* XXX: error string unused */
169 if ((kdp = ::kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL)
172 struct ::kinfo_proc2 *proc_kinfo;
174 if ((proc_kinfo = ::kvm_getproc2(kdp, KERN_PROC_ALL, 0,
175 sizeof(struct ::kinfo_proc2), &nproc)) ==
181 for (int i = 0; i < nproc; i++) {
182 if (proc_kinfo[i].p_pid < 1)
183 continue; /* not valid */
184 /* Make sure the user is acceptable */
185 if (!all_users && proc_kinfo[i].p_ruid != our_uid)
188 if (proc_kinfo[i].p_pid == our_pid || // Skip this process
189 proc_kinfo[i].p_pid == 0 || // Skip kernel (kernel pid is 0)
190 proc_kinfo[i].p_stat == LSZOMB || // Zombies are bad
191 proc_kinfo[i].p_flag & P_TRACED || // Being debugged?
192 proc_kinfo[i].p_flag & P_WEXIT) // Working on exiting
195 // Every thread is a process in NetBSD, but all the threads of a single
196 // process have the same pid. Do not store the process info in the result
197 // list if a process with given identifier is already registered there.
198 if (proc_kinfo[i].p_nlwps > 1) {
199 bool already_registered = false;
200 for (size_t pi = 0; pi < process_infos.GetSize(); pi++) {
201 if (process_infos.GetProcessIDAtIndex(pi) == proc_kinfo[i].p_pid) {
202 already_registered = true;
207 if (already_registered)
210 ProcessInstanceInfo process_info;
211 process_info.SetProcessID(proc_kinfo[i].p_pid);
212 process_info.SetParentProcessID(proc_kinfo[i].p_ppid);
213 process_info.SetUserID(proc_kinfo[i].p_ruid);
214 process_info.SetGroupID(proc_kinfo[i].p_rgid);
215 process_info.SetEffectiveUserID(proc_kinfo[i].p_uid);
216 process_info.SetEffectiveGroupID(proc_kinfo[i].p_gid);
217 // Make sure our info matches before we go fetch the name and cpu type
218 if (match_info.Matches(process_info) &&
219 GetNetBSDProcessArgs(&match_info, process_info)) {
220 GetNetBSDProcessCPUType(process_info);
221 if (match_info.Matches(process_info))
222 process_infos.Append(process_info);
226 kvm_close(kdp); /* XXX: we don't check for error here */
228 return process_infos.GetSize();
231 bool Host::GetProcessInfo(lldb::pid_t pid, ProcessInstanceInfo &process_info) {
232 process_info.SetProcessID(pid);
234 if (GetNetBSDProcessArgs(NULL, process_info)) {
235 GetNetBSDProcessCPUType(process_info);
236 GetNetBSDProcessUserAndGroup(process_info);
240 process_info.Clear();
244 Status Host::ShellExpandArguments(ProcessLaunchInfo &launch_info) {
245 return Status("unimplemented");