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llvm-project/lldb/source/Utility/ProcessInfo.cpp

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//===-- ProcessInfo.cpp -----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Utility/ProcessInfo.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/Stream.h"
#include "lldb/Utility/StreamString.h"
#include "lldb/Utility/UserIDResolver.h"
#include "llvm/ADT/SmallString.h"
#include <climits>
using namespace lldb;
using namespace lldb_private;
ProcessInfo::ProcessInfo()
: m_executable(), m_arguments(), m_environment(), m_uid(UINT32_MAX),
m_gid(UINT32_MAX), m_arch(), m_pid(LLDB_INVALID_PROCESS_ID) {}
ProcessInfo::ProcessInfo(const char *name, const ArchSpec &arch,
lldb::pid_t pid)
: m_executable(name), m_arguments(), m_environment(), m_uid(UINT32_MAX),
m_gid(UINT32_MAX), m_arch(arch), m_pid(pid) {}
void ProcessInfo::Clear() {
m_executable.Clear();
m_arguments.Clear();
m_environment.clear();
m_uid = UINT32_MAX;
m_gid = UINT32_MAX;
m_arch.Clear();
m_pid = LLDB_INVALID_PROCESS_ID;
}
const char *ProcessInfo::GetName() const {
return m_executable.GetFilename().GetCString();
}
llvm::StringRef ProcessInfo::GetNameAsStringRef() const {
return m_executable.GetFilename().GetStringRef();
}
void ProcessInfo::Dump(Stream &s, Platform *platform) const {
s << "Executable: " << GetName() << "\n";
s << "Triple: ";
m_arch.DumpTriple(s.AsRawOstream());
s << "\n";
s << "Arguments:\n";
m_arguments.Dump(s);
s.Format("Environment:\n{0}", m_environment);
}
void ProcessInfo::SetExecutableFile(const FileSpec &exe_file,
bool add_exe_file_as_first_arg) {
if (exe_file) {
m_executable = exe_file;
if (add_exe_file_as_first_arg) {
llvm::SmallString<128> filename;
exe_file.GetPath(filename);
if (!filename.empty())
m_arguments.InsertArgumentAtIndex(0, filename);
}
} else {
m_executable.Clear();
}
}
llvm::StringRef ProcessInfo::GetArg0() const { return m_arg0; }
void ProcessInfo::SetArg0(llvm::StringRef arg) { m_arg0 = arg; }
void ProcessInfo::SetArguments(char const **argv,
bool first_arg_is_executable) {
m_arguments.SetArguments(argv);
// Is the first argument the executable?
if (first_arg_is_executable) {
const char *first_arg = m_arguments.GetArgumentAtIndex(0);
if (first_arg) {
// Yes the first argument is an executable, set it as the executable in
// the launch options. Don't resolve the file path as the path could be a
// remote platform path
m_executable.SetFile(first_arg, FileSpec::Style::native);
}
}
}
void ProcessInfo::SetArguments(const Args &args, bool first_arg_is_executable) {
// Copy all arguments
m_arguments = args;
// Is the first argument the executable?
if (first_arg_is_executable) {
const char *first_arg = m_arguments.GetArgumentAtIndex(0);
if (first_arg) {
// Yes the first argument is an executable, set it as the executable in
// the launch options. Don't resolve the file path as the path could be a
// remote platform path
m_executable.SetFile(first_arg, FileSpec::Style::native);
}
}
}
void ProcessInstanceInfo::Dump(Stream &s, UserIDResolver &resolver) const {
if (m_pid != LLDB_INVALID_PROCESS_ID)
s.Printf(" pid = %" PRIu64 "\n", m_pid);
if (m_parent_pid != LLDB_INVALID_PROCESS_ID)
s.Printf(" parent = %" PRIu64 "\n", m_parent_pid);
if (m_executable) {
s.Printf(" name = %s\n", m_executable.GetFilename().GetCString());
s.PutCString(" file = ");
m_executable.Dump(s.AsRawOstream());
s.EOL();
}
const uint32_t argc = m_arguments.GetArgumentCount();
if (argc > 0) {
for (uint32_t i = 0; i < argc; i++) {
const char *arg = m_arguments.GetArgumentAtIndex(i);
if (i < 10)
s.Printf(" arg[%u] = %s\n", i, arg);
else
s.Printf("arg[%u] = %s\n", i, arg);
}
}
s.Format("{0}", m_environment);
if (m_arch.IsValid()) {
s.Printf(" arch = ");
m_arch.DumpTriple(s.AsRawOstream());
s.EOL();
}
if (UserIDIsValid()) {
s.Format(" uid = {0,-5} ({1})\n", GetUserID(),
resolver.GetUserName(GetUserID()).getValueOr(""));
}
if (GroupIDIsValid()) {
s.Format(" gid = {0,-5} ({1})\n", GetGroupID(),
resolver.GetGroupName(GetGroupID()).getValueOr(""));
}
if (EffectiveUserIDIsValid()) {
s.Format(" euid = {0,-5} ({1})\n", GetEffectiveUserID(),
resolver.GetUserName(GetEffectiveUserID()).getValueOr(""));
}
if (EffectiveGroupIDIsValid()) {
s.Format(" egid = {0,-5} ({1})\n", GetEffectiveGroupID(),
resolver.GetGroupName(GetEffectiveGroupID()).getValueOr(""));
}
}
void ProcessInstanceInfo::DumpTableHeader(Stream &s, bool show_args,
bool verbose) {
const char *label;
if (show_args || verbose)
label = "ARGUMENTS";
else
label = "NAME";
if (verbose) {
s.Printf("PID PARENT USER GROUP EFF USER EFF GROUP TRIPLE "
" %s\n",
label);
s.PutCString(
"====== ====== ========== ========== ========== ========== "
"============================== ============================\n");
} else {
s.Printf("PID PARENT USER TRIPLE %s\n",
label);
s.PutCString("====== ====== ========== ============================== "
"============================\n");
}
}
void ProcessInstanceInfo::DumpAsTableRow(Stream &s, UserIDResolver &resolver,
bool show_args, bool verbose) const {
if (m_pid != LLDB_INVALID_PROCESS_ID) {
s.Printf("%-6" PRIu64 " %-6" PRIu64 " ", m_pid, m_parent_pid);
StreamString arch_strm;
if (m_arch.IsValid())
m_arch.DumpTriple(arch_strm.AsRawOstream());
auto print = [&](bool (ProcessInstanceInfo::*isValid)() const,
uint32_t (ProcessInstanceInfo::*getID)() const,
llvm::Optional<llvm::StringRef> (UserIDResolver::*getName)(
UserIDResolver::id_t id)) {
const char *format = "{0,-10} ";
if (!(this->*isValid)()) {
s.Format(format, "");
return;
}
uint32_t id = (this->*getID)();
if (auto name = (resolver.*getName)(id))
s.Format(format, *name);
else
s.Format(format, id);
};
if (verbose) {
print(&ProcessInstanceInfo::UserIDIsValid,
&ProcessInstanceInfo::GetUserID, &UserIDResolver::GetUserName);
print(&ProcessInstanceInfo::GroupIDIsValid,
&ProcessInstanceInfo::GetGroupID, &UserIDResolver::GetGroupName);
print(&ProcessInstanceInfo::EffectiveUserIDIsValid,
&ProcessInstanceInfo::GetEffectiveUserID,
&UserIDResolver::GetUserName);
print(&ProcessInstanceInfo::EffectiveGroupIDIsValid,
&ProcessInstanceInfo::GetEffectiveGroupID,
&UserIDResolver::GetGroupName);
s.Printf("%-30s ", arch_strm.GetData());
} else {
print(&ProcessInstanceInfo::EffectiveUserIDIsValid,
&ProcessInstanceInfo::GetEffectiveUserID,
&UserIDResolver::GetUserName);
s.Printf("%-30s ", arch_strm.GetData());
}
if (verbose || show_args) {
s.PutCString(m_arg0);
const uint32_t argc = m_arguments.GetArgumentCount();
for (uint32_t i = 0; i < argc; i++) {
s.PutChar(' ');
s.PutCString(m_arguments.GetArgumentAtIndex(i));
}
} else {
s.PutCString(GetName());
}
s.EOL();
}
}
bool ProcessInstanceInfoMatch::ArchitectureMatches(
const ArchSpec &arch_spec) const {
return !m_match_info.GetArchitecture().IsValid() ||
m_match_info.GetArchitecture().IsCompatibleMatch(arch_spec);
}
bool ProcessInstanceInfoMatch::NameMatches(const char *process_name) const {
if (m_name_match_type == NameMatch::Ignore)
return true;
const char *match_name = m_match_info.GetName();
if (!match_name)
return true;
return lldb_private::NameMatches(process_name, m_name_match_type, match_name);
}
bool ProcessInstanceInfoMatch::ProcessIDsMatch(
const ProcessInstanceInfo &proc_info) const {
if (m_match_info.ProcessIDIsValid() &&
m_match_info.GetProcessID() != proc_info.GetProcessID())
return false;
if (m_match_info.ParentProcessIDIsValid() &&
m_match_info.GetParentProcessID() != proc_info.GetParentProcessID())
return false;
return true;
}
bool ProcessInstanceInfoMatch::UserIDsMatch(
const ProcessInstanceInfo &proc_info) const {
if (m_match_info.UserIDIsValid() &&
m_match_info.GetUserID() != proc_info.GetUserID())
return false;
if (m_match_info.GroupIDIsValid() &&
m_match_info.GetGroupID() != proc_info.GetGroupID())
return false;
if (m_match_info.EffectiveUserIDIsValid() &&
m_match_info.GetEffectiveUserID() != proc_info.GetEffectiveUserID())
return false;
if (m_match_info.EffectiveGroupIDIsValid() &&
m_match_info.GetEffectiveGroupID() != proc_info.GetEffectiveGroupID())
return false;
return true;
}
bool ProcessInstanceInfoMatch::Matches(
const ProcessInstanceInfo &proc_info) const {
return ArchitectureMatches(proc_info.GetArchitecture()) &&
ProcessIDsMatch(proc_info) && UserIDsMatch(proc_info) &&
NameMatches(proc_info.GetName());
}
bool ProcessInstanceInfoMatch::MatchAllProcesses() const {
if (m_name_match_type != NameMatch::Ignore)
return false;
if (m_match_info.ProcessIDIsValid())
return false;
if (m_match_info.ParentProcessIDIsValid())
return false;
if (m_match_info.UserIDIsValid())
return false;
if (m_match_info.GroupIDIsValid())
return false;
if (m_match_info.EffectiveUserIDIsValid())
return false;
if (m_match_info.EffectiveGroupIDIsValid())
return false;
if (m_match_info.GetArchitecture().IsValid())
return false;
if (m_match_all_users)
return false;
return true;
}
void ProcessInstanceInfoMatch::Clear() {
m_match_info.Clear();
m_name_match_type = NameMatch::Ignore;
m_match_all_users = false;
}
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