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4794bbffb228894de3ca0dad50fc027eb94f743e
clang-p2996/lldb/source/Symbol/LocateSymbolFileMacOSX.cpp
Jason Molenda d2f3b6020f [NFC] Don't bother with unstripped binary w/ dSYM, don't DebugSymbols twice 
This patch addresses two perf issues when we find a dSYM on macOS
after calling into the DebugSymbols framework.  First, when we have
a local (probably stripped) binaary, we find the dSYM and we may
be told about the location of the symbol rich binary (probably
unstripped) which may be on a remote filesystem.  We don't need the
unstripped binary, use the local binary we already have.
Second, after we've found the path to the dSYM, save that in the Module
so we don't call into DebugSymbols a second time later on to
rediscover it.  If the user has a DBGShellCommands set, we need to
exec that process twice, serially, which can add up.

Differential Revision: https://reviews.llvm.org/D125616
rdar://84576917
2022-05-16 15:30:39 -07:00

681 lines
28 KiB
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//===-- LocateSymbolFileMacOSX.cpp ----------------------------------------===//
//
// 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/Symbol/LocateSymbolFile.h"
#include <dirent.h>
#include <dlfcn.h>
#include <pwd.h>
#include <CoreFoundation/CoreFoundation.h>
#include "Host/macosx/cfcpp/CFCBundle.h"
#include "Host/macosx/cfcpp/CFCData.h"
#include "Host/macosx/cfcpp/CFCReleaser.h"
#include "Host/macosx/cfcpp/CFCString.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Host/Host.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBuffer.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/Endian.h"
#include "lldb/Utility/LLDBLog.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/StreamString.h"
#include "lldb/Utility/Timer.h"
#include "lldb/Utility/UUID.h"
#include "mach/machine.h"
#include "llvm/ADT/ScopeExit.h"
#include "llvm/Support/FileSystem.h"
using namespace lldb;
using namespace lldb_private;
static CFURLRef (*g_dlsym_DBGCopyFullDSYMURLForUUID)(
CFUUIDRef uuid, CFURLRef exec_url) = nullptr;
static CFDictionaryRef (*g_dlsym_DBGCopyDSYMPropertyLists)(CFURLRef dsym_url) =
nullptr;
int LocateMacOSXFilesUsingDebugSymbols(const ModuleSpec &module_spec,
ModuleSpec &return_module_spec) {
Log *log = GetLog(LLDBLog::Host);
if (!ModuleList::GetGlobalModuleListProperties().GetEnableExternalLookup()) {
LLDB_LOGF(log, "Spotlight lookup for .dSYM bundles is disabled.");
return 0;
}
return_module_spec = module_spec;
return_module_spec.GetFileSpec().Clear();
return_module_spec.GetSymbolFileSpec().Clear();
const UUID *uuid = module_spec.GetUUIDPtr();
const ArchSpec *arch = module_spec.GetArchitecturePtr();
int items_found = 0;
if (g_dlsym_DBGCopyFullDSYMURLForUUID == nullptr ||
g_dlsym_DBGCopyDSYMPropertyLists == nullptr) {
void *handle = dlopen(
"/System/Library/PrivateFrameworks/DebugSymbols.framework/DebugSymbols",
RTLD_LAZY | RTLD_LOCAL);
if (handle) {
g_dlsym_DBGCopyFullDSYMURLForUUID =
(CFURLRef(*)(CFUUIDRef, CFURLRef))dlsym(handle,
"DBGCopyFullDSYMURLForUUID");
g_dlsym_DBGCopyDSYMPropertyLists = (CFDictionaryRef(*)(CFURLRef))dlsym(
handle, "DBGCopyDSYMPropertyLists");
}
}
if (g_dlsym_DBGCopyFullDSYMURLForUUID == nullptr ||
g_dlsym_DBGCopyDSYMPropertyLists == nullptr) {
return items_found;
}
if (uuid && uuid->IsValid()) {
// Try and locate the dSYM file using DebugSymbols first
llvm::ArrayRef<uint8_t> module_uuid = uuid->GetBytes();
if (module_uuid.size() == 16) {
CFCReleaser<CFUUIDRef> module_uuid_ref(::CFUUIDCreateWithBytes(
NULL, module_uuid[0], module_uuid[1], module_uuid[2], module_uuid[3],
module_uuid[4], module_uuid[5], module_uuid[6], module_uuid[7],
module_uuid[8], module_uuid[9], module_uuid[10], module_uuid[11],
module_uuid[12], module_uuid[13], module_uuid[14], module_uuid[15]));
if (module_uuid_ref.get()) {
CFCReleaser<CFURLRef> exec_url;
const FileSpec *exec_fspec = module_spec.GetFileSpecPtr();
if (exec_fspec) {
char exec_cf_path[PATH_MAX];
if (exec_fspec->GetPath(exec_cf_path, sizeof(exec_cf_path)))
exec_url.reset(::CFURLCreateFromFileSystemRepresentation(
NULL, (const UInt8 *)exec_cf_path, strlen(exec_cf_path),
FALSE));
}
CFCReleaser<CFURLRef> dsym_url(g_dlsym_DBGCopyFullDSYMURLForUUID(
module_uuid_ref.get(), exec_url.get()));
char path[PATH_MAX];
if (dsym_url.get()) {
if (::CFURLGetFileSystemRepresentation(
dsym_url.get(), true, (UInt8 *)path, sizeof(path) - 1)) {
LLDB_LOGF(log,
"DebugSymbols framework returned dSYM path of %s for "
"UUID %s -- looking for the dSYM",
path, uuid->GetAsString().c_str());
FileSpec dsym_filespec(path);
if (path[0] == '~')
FileSystem::Instance().Resolve(dsym_filespec);
if (FileSystem::Instance().IsDirectory(dsym_filespec)) {
dsym_filespec =
Symbols::FindSymbolFileInBundle(dsym_filespec, uuid, arch);
++items_found;
} else {
++items_found;
}
return_module_spec.GetSymbolFileSpec() = dsym_filespec;
}
bool success = false;
if (log) {
if (::CFURLGetFileSystemRepresentation(
dsym_url.get(), true, (UInt8 *)path, sizeof(path) - 1)) {
LLDB_LOGF(log,
"DebugSymbols framework returned dSYM path of %s for "
"UUID %s -- looking for an exec file",
path, uuid->GetAsString().c_str());
}
}
CFCReleaser<CFDictionaryRef> dict(
g_dlsym_DBGCopyDSYMPropertyLists(dsym_url.get()));
CFDictionaryRef uuid_dict = NULL;
if (dict.get()) {
CFCString uuid_cfstr(uuid->GetAsString().c_str());
uuid_dict = static_cast<CFDictionaryRef>(
::CFDictionaryGetValue(dict.get(), uuid_cfstr.get()));
}
// Check to see if we have the file on the local filesystem.
if (FileSystem::Instance().Exists(module_spec.GetFileSpec())) {
ModuleSpec exe_spec;
exe_spec.GetFileSpec() = module_spec.GetFileSpec();
exe_spec.GetUUID() = module_spec.GetUUID();
ModuleSP module_sp;
module_sp.reset(new Module(exe_spec));
if (module_sp && module_sp->GetObjectFile() &&
module_sp->MatchesModuleSpec(exe_spec)) {
success = true;
return_module_spec.GetFileSpec() = module_spec.GetFileSpec();
LLDB_LOGF(log, "using original binary filepath %s for UUID %s",
module_spec.GetFileSpec().GetPath().c_str(),
uuid->GetAsString().c_str());
++items_found;
}
}
// Check if the requested image is in our shared cache.
if (!success) {
SharedCacheImageInfo image_info = HostInfo::GetSharedCacheImageInfo(
module_spec.GetFileSpec().GetPath());
// If we found it and it has the correct UUID, let's proceed with
// creating a module from the memory contents.
if (image_info.uuid && (!module_spec.GetUUID() ||
module_spec.GetUUID() == image_info.uuid)) {
success = true;
return_module_spec.GetFileSpec() = module_spec.GetFileSpec();
LLDB_LOGF(log,
"using binary from shared cache for filepath %s for "
"UUID %s",
module_spec.GetFileSpec().GetPath().c_str(),
uuid->GetAsString().c_str());
++items_found;
}
}
// Use the DBGSymbolRichExecutable filepath if present
if (!success && uuid_dict) {
CFStringRef exec_cf_path =
static_cast<CFStringRef>(::CFDictionaryGetValue(
uuid_dict, CFSTR("DBGSymbolRichExecutable")));
if (exec_cf_path && ::CFStringGetFileSystemRepresentation(
exec_cf_path, path, sizeof(path))) {
LLDB_LOGF(log, "plist bundle has exec path of %s for UUID %s",
path, uuid->GetAsString().c_str());
++items_found;
FileSpec exec_filespec(path);
if (path[0] == '~')
FileSystem::Instance().Resolve(exec_filespec);
if (FileSystem::Instance().Exists(exec_filespec)) {
success = true;
return_module_spec.GetFileSpec() = exec_filespec;
}
}
}
// Look next to the dSYM for the binary file.
if (!success) {
if (::CFURLGetFileSystemRepresentation(
dsym_url.get(), true, (UInt8 *)path, sizeof(path) - 1)) {
char *dsym_extension_pos = ::strstr(path, ".dSYM");
if (dsym_extension_pos) {
*dsym_extension_pos = '\0';
LLDB_LOGF(log,
"Looking for executable binary next to dSYM "
"bundle with name with name %s",
path);
FileSpec file_spec(path);
FileSystem::Instance().Resolve(file_spec);
ModuleSpecList module_specs;
ModuleSpec matched_module_spec;
using namespace llvm::sys::fs;
switch (get_file_type(file_spec.GetPath())) {
case file_type::directory_file: // Bundle directory?
{
CFCBundle bundle(path);
CFCReleaser<CFURLRef> bundle_exe_url(
bundle.CopyExecutableURL());
if (bundle_exe_url.get()) {
if (::CFURLGetFileSystemRepresentation(bundle_exe_url.get(),
true, (UInt8 *)path,
sizeof(path) - 1)) {
FileSpec bundle_exe_file_spec(path);
FileSystem::Instance().Resolve(bundle_exe_file_spec);
if (ObjectFile::GetModuleSpecifications(
bundle_exe_file_spec, 0, 0, module_specs) &&
module_specs.FindMatchingModuleSpec(
module_spec, matched_module_spec))
{
++items_found;
return_module_spec.GetFileSpec() = bundle_exe_file_spec;
LLDB_LOGF(log,
"Executable binary %s next to dSYM is "
"compatible; using",
path);
}
}
}
} break;
case file_type::fifo_file: // Forget pipes
case file_type::socket_file: // We can't process socket files
case file_type::file_not_found: // File doesn't exist...
case file_type::status_error:
break;
case file_type::type_unknown:
case file_type::regular_file:
case file_type::symlink_file:
case file_type::block_file:
case file_type::character_file:
if (ObjectFile::GetModuleSpecifications(file_spec, 0, 0,
module_specs) &&
module_specs.FindMatchingModuleSpec(module_spec,
matched_module_spec))
{
++items_found;
return_module_spec.GetFileSpec() = file_spec;
LLDB_LOGF(log,
"Executable binary %s next to dSYM is "
"compatible; using",
path);
}
break;
}
}
}
}
}
}
}
}
return items_found;
}
FileSpec Symbols::FindSymbolFileInBundle(const FileSpec &dsym_bundle_fspec,
const lldb_private::UUID *uuid,
const ArchSpec *arch) {
std::string dsym_bundle_path = dsym_bundle_fspec.GetPath();
llvm::SmallString<128> buffer(dsym_bundle_path);
llvm::sys::path::append(buffer, "Contents", "Resources", "DWARF");
std::error_code EC;
llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> vfs =
FileSystem::Instance().GetVirtualFileSystem();
llvm::vfs::recursive_directory_iterator Iter(*vfs, buffer.str(), EC);
llvm::vfs::recursive_directory_iterator End;
for (; Iter != End && !EC; Iter.increment(EC)) {
llvm::ErrorOr<llvm::vfs::Status> Status = vfs->status(Iter->path());
if (Status->isDirectory())
continue;
FileSpec dsym_fspec(Iter->path());
ModuleSpecList module_specs;
if (ObjectFile::GetModuleSpecifications(dsym_fspec, 0, 0, module_specs)) {
ModuleSpec spec;
for (size_t i = 0; i < module_specs.GetSize(); ++i) {
bool got_spec = module_specs.GetModuleSpecAtIndex(i, spec);
assert(got_spec); // The call has side-effects so can't be inlined.
UNUSED_IF_ASSERT_DISABLED(got_spec);
if ((uuid == nullptr ||
(spec.GetUUIDPtr() && spec.GetUUID() == *uuid)) &&
(arch == nullptr ||
(spec.GetArchitecturePtr() &&
spec.GetArchitecture().IsCompatibleMatch(*arch)))) {
return dsym_fspec;
}
}
}
}
return {};
}
static bool GetModuleSpecInfoFromUUIDDictionary(CFDictionaryRef uuid_dict,
ModuleSpec &module_spec,
Status &error) {
Log *log = GetLog(LLDBLog::Host);
bool success = false;
if (uuid_dict != NULL && CFGetTypeID(uuid_dict) == CFDictionaryGetTypeID()) {
std::string str;
CFStringRef cf_str;
CFDictionaryRef cf_dict;
cf_str = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)uuid_dict,
CFSTR("DBGError"));
if (cf_str && CFGetTypeID(cf_str) == CFStringGetTypeID()) {
if (CFCString::FileSystemRepresentation(cf_str, str)) {
error.SetErrorString(str);
}
}
cf_str = (CFStringRef)CFDictionaryGetValue(
(CFDictionaryRef)uuid_dict, CFSTR("DBGSymbolRichExecutable"));
if (cf_str && CFGetTypeID(cf_str) == CFStringGetTypeID()) {
if (CFCString::FileSystemRepresentation(cf_str, str)) {
module_spec.GetFileSpec().SetFile(str.c_str(), FileSpec::Style::native);
FileSystem::Instance().Resolve(module_spec.GetFileSpec());
LLDB_LOGF(log,
"From dsymForUUID plist: Symbol rich executable is at '%s'",
str.c_str());
}
}
cf_str = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)uuid_dict,
CFSTR("DBGDSYMPath"));
if (cf_str && CFGetTypeID(cf_str) == CFStringGetTypeID()) {
if (CFCString::FileSystemRepresentation(cf_str, str)) {
module_spec.GetSymbolFileSpec().SetFile(str.c_str(),
FileSpec::Style::native);
FileSystem::Instance().Resolve(module_spec.GetFileSpec());
success = true;
LLDB_LOGF(log, "From dsymForUUID plist: dSYM is at '%s'", str.c_str());
}
}
std::string DBGBuildSourcePath;
std::string DBGSourcePath;
// If DBGVersion 1 or DBGVersion missing, ignore DBGSourcePathRemapping.
// If DBGVersion 2, strip last two components of path remappings from
// entries to fix an issue with a specific set of
// DBGSourcePathRemapping entries that lldb worked
// with.
// If DBGVersion 3, trust & use the source path remappings as-is.
//
cf_dict = (CFDictionaryRef)CFDictionaryGetValue(
(CFDictionaryRef)uuid_dict, CFSTR("DBGSourcePathRemapping"));
if (cf_dict && CFGetTypeID(cf_dict) == CFDictionaryGetTypeID()) {
// If we see DBGVersion with a value of 2 or higher, this is a new style
// DBGSourcePathRemapping dictionary
bool new_style_source_remapping_dictionary = false;
bool do_truncate_remapping_names = false;
std::string original_DBGSourcePath_value = DBGSourcePath;
cf_str = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)uuid_dict,
CFSTR("DBGVersion"));
if (cf_str && CFGetTypeID(cf_str) == CFStringGetTypeID()) {
std::string version;
CFCString::FileSystemRepresentation(cf_str, version);
if (!version.empty() && isdigit(version[0])) {
int version_number = atoi(version.c_str());
if (version_number > 1) {
new_style_source_remapping_dictionary = true;
}
if (version_number == 2) {
do_truncate_remapping_names = true;
}
}
}
CFIndex kv_pair_count = CFDictionaryGetCount((CFDictionaryRef)uuid_dict);
if (kv_pair_count > 0) {
CFStringRef *keys =
(CFStringRef *)malloc(kv_pair_count * sizeof(CFStringRef));
CFStringRef *values =
(CFStringRef *)malloc(kv_pair_count * sizeof(CFStringRef));
if (keys != nullptr && values != nullptr) {
CFDictionaryGetKeysAndValues((CFDictionaryRef)uuid_dict,
(const void **)keys,
(const void **)values);
}
for (CFIndex i = 0; i < kv_pair_count; i++) {
DBGBuildSourcePath.clear();
DBGSourcePath.clear();
if (keys[i] && CFGetTypeID(keys[i]) == CFStringGetTypeID()) {
CFCString::FileSystemRepresentation(keys[i], DBGBuildSourcePath);
}
if (values[i] && CFGetTypeID(values[i]) == CFStringGetTypeID()) {
CFCString::FileSystemRepresentation(values[i], DBGSourcePath);
}
if (!DBGBuildSourcePath.empty() && !DBGSourcePath.empty()) {
// In the "old style" DBGSourcePathRemapping dictionary, the
// DBGSourcePath values (the "values" half of key-value path pairs)
// were wrong. Ignore them and use the universal DBGSourcePath
// string from earlier.
if (new_style_source_remapping_dictionary &&
!original_DBGSourcePath_value.empty()) {
DBGSourcePath = original_DBGSourcePath_value;
}
if (DBGSourcePath[0] == '~') {
FileSpec resolved_source_path(DBGSourcePath.c_str());
FileSystem::Instance().Resolve(resolved_source_path);
DBGSourcePath = resolved_source_path.GetPath();
}
// With version 2 of DBGSourcePathRemapping, we can chop off the
// last two filename parts from the source remapping and get a more
// general source remapping that still works. Add this as another
// option in addition to the full source path remap.
module_spec.GetSourceMappingList().Append(DBGBuildSourcePath,
DBGSourcePath, true);
if (do_truncate_remapping_names) {
FileSpec build_path(DBGBuildSourcePath.c_str());
FileSpec source_path(DBGSourcePath.c_str());
build_path.RemoveLastPathComponent();
build_path.RemoveLastPathComponent();
source_path.RemoveLastPathComponent();
source_path.RemoveLastPathComponent();
module_spec.GetSourceMappingList().Append(
build_path.GetPath(), source_path.GetPath(), true);
}
}
}
if (keys)
free(keys);
if (values)
free(values);
}
}
// If we have a DBGBuildSourcePath + DBGSourcePath pair, append them to the
// source remappings list.
cf_str = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)uuid_dict,
CFSTR("DBGBuildSourcePath"));
if (cf_str && CFGetTypeID(cf_str) == CFStringGetTypeID()) {
CFCString::FileSystemRepresentation(cf_str, DBGBuildSourcePath);
}
cf_str = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)uuid_dict,
CFSTR("DBGSourcePath"));
if (cf_str && CFGetTypeID(cf_str) == CFStringGetTypeID()) {
CFCString::FileSystemRepresentation(cf_str, DBGSourcePath);
}
if (!DBGBuildSourcePath.empty() && !DBGSourcePath.empty()) {
if (DBGSourcePath[0] == '~') {
FileSpec resolved_source_path(DBGSourcePath.c_str());
FileSystem::Instance().Resolve(resolved_source_path);
DBGSourcePath = resolved_source_path.GetPath();
}
module_spec.GetSourceMappingList().Append(DBGBuildSourcePath,
DBGSourcePath, true);
}
}
return success;
}
bool Symbols::DownloadObjectAndSymbolFile(ModuleSpec &module_spec,
Status &error, bool force_lookup) {
bool success = false;
const UUID *uuid_ptr = module_spec.GetUUIDPtr();
const FileSpec *file_spec_ptr = module_spec.GetFileSpecPtr();
// It's expensive to check for the DBGShellCommands defaults setting, only do
// it once per lldb run and cache the result.
static bool g_have_checked_for_dbgshell_command = false;
static const char *g_dbgshell_command = NULL;
if (!g_have_checked_for_dbgshell_command) {
g_have_checked_for_dbgshell_command = true;
CFTypeRef defaults_setting = CFPreferencesCopyAppValue(
CFSTR("DBGShellCommands"), CFSTR("com.apple.DebugSymbols"));
if (defaults_setting &&
CFGetTypeID(defaults_setting) == CFStringGetTypeID()) {
char cstr_buf[PATH_MAX];
if (CFStringGetCString((CFStringRef)defaults_setting, cstr_buf,
sizeof(cstr_buf), kCFStringEncodingUTF8)) {
g_dbgshell_command =
strdup(cstr_buf); // this malloc'ed memory will never be freed
}
}
if (defaults_setting) {
CFRelease(defaults_setting);
}
}
// When g_dbgshell_command is NULL, the user has not enabled the use of an
// external program to find the symbols, don't run it for them.
if (!force_lookup && g_dbgshell_command == NULL) {
return false;
}
if (uuid_ptr ||
(file_spec_ptr && FileSystem::Instance().Exists(*file_spec_ptr))) {
static bool g_located_dsym_for_uuid_exe = false;
static bool g_dsym_for_uuid_exe_exists = false;
static char g_dsym_for_uuid_exe_path[PATH_MAX];
if (!g_located_dsym_for_uuid_exe) {
g_located_dsym_for_uuid_exe = true;
const char *dsym_for_uuid_exe_path_cstr =
getenv("LLDB_APPLE_DSYMFORUUID_EXECUTABLE");
FileSpec dsym_for_uuid_exe_spec;
if (dsym_for_uuid_exe_path_cstr) {
dsym_for_uuid_exe_spec.SetFile(dsym_for_uuid_exe_path_cstr,
FileSpec::Style::native);
FileSystem::Instance().Resolve(dsym_for_uuid_exe_spec);
g_dsym_for_uuid_exe_exists =
FileSystem::Instance().Exists(dsym_for_uuid_exe_spec);
}
if (!g_dsym_for_uuid_exe_exists) {
dsym_for_uuid_exe_spec.SetFile("/usr/local/bin/dsymForUUID",
FileSpec::Style::native);
g_dsym_for_uuid_exe_exists =
FileSystem::Instance().Exists(dsym_for_uuid_exe_spec);
if (!g_dsym_for_uuid_exe_exists) {
long bufsize;
if ((bufsize = sysconf(_SC_GETPW_R_SIZE_MAX)) != -1) {
char buffer[bufsize];
struct passwd pwd;
struct passwd *tilde_rc = NULL;
// we are a library so we need to use the reentrant version of
// getpwnam()
if (getpwnam_r("rc", &pwd, buffer, bufsize, &tilde_rc) == 0 &&
tilde_rc && tilde_rc->pw_dir) {
std::string dsymforuuid_path(tilde_rc->pw_dir);
dsymforuuid_path += "/bin/dsymForUUID";
dsym_for_uuid_exe_spec.SetFile(dsymforuuid_path.c_str(),
FileSpec::Style::native);
g_dsym_for_uuid_exe_exists =
FileSystem::Instance().Exists(dsym_for_uuid_exe_spec);
}
}
}
}
if (!g_dsym_for_uuid_exe_exists && g_dbgshell_command != NULL) {
dsym_for_uuid_exe_spec.SetFile(g_dbgshell_command,
FileSpec::Style::native);
FileSystem::Instance().Resolve(dsym_for_uuid_exe_spec);
g_dsym_for_uuid_exe_exists =
FileSystem::Instance().Exists(dsym_for_uuid_exe_spec);
}
if (g_dsym_for_uuid_exe_exists)
dsym_for_uuid_exe_spec.GetPath(g_dsym_for_uuid_exe_path,
sizeof(g_dsym_for_uuid_exe_path));
}
if (g_dsym_for_uuid_exe_exists) {
std::string uuid_str;
char file_path[PATH_MAX];
file_path[0] = '\0';
if (uuid_ptr)
uuid_str = uuid_ptr->GetAsString();
if (file_spec_ptr)
file_spec_ptr->GetPath(file_path, sizeof(file_path));
StreamString command;
if (!uuid_str.empty())
command.Printf("%s --ignoreNegativeCache --copyExecutable %s",
g_dsym_for_uuid_exe_path, uuid_str.c_str());
else if (file_path[0] != '\0')
command.Printf("%s --ignoreNegativeCache --copyExecutable %s",
g_dsym_for_uuid_exe_path, file_path);
if (!command.GetString().empty()) {
Log *log = GetLog(LLDBLog::Host);
int exit_status = -1;
int signo = -1;
std::string command_output;
if (log) {
if (!uuid_str.empty())
LLDB_LOGF(log, "Calling %s with UUID %s to find dSYM",
g_dsym_for_uuid_exe_path, uuid_str.c_str());
else if (file_path[0] != '\0')
LLDB_LOGF(log, "Calling %s with file %s to find dSYM",
g_dsym_for_uuid_exe_path, file_path);
}
error = Host::RunShellCommand(
command.GetData(),
FileSpec(), // current working directory
&exit_status, // Exit status
&signo, // Signal int *
&command_output, // Command output
std::chrono::seconds(
640), // Large timeout to allow for long dsym download times
false); // Don't run in a shell (we don't need shell expansion)
if (error.Success() && exit_status == 0 && !command_output.empty()) {
CFCData data(CFDataCreateWithBytesNoCopy(
NULL, (const UInt8 *)command_output.data(), command_output.size(),
kCFAllocatorNull));
CFCReleaser<CFDictionaryRef> plist(
(CFDictionaryRef)::CFPropertyListCreateFromXMLData(
NULL, data.get(), kCFPropertyListImmutable, NULL));
if (plist.get() &&
CFGetTypeID(plist.get()) == CFDictionaryGetTypeID()) {
if (!uuid_str.empty()) {
CFCString uuid_cfstr(uuid_str.c_str());
CFDictionaryRef uuid_dict = (CFDictionaryRef)CFDictionaryGetValue(
plist.get(), uuid_cfstr.get());
success = GetModuleSpecInfoFromUUIDDictionary(uuid_dict,
module_spec, error);
} else {
const CFIndex num_values = ::CFDictionaryGetCount(plist.get());
if (num_values > 0) {
std::vector<CFStringRef> keys(num_values, NULL);
std::vector<CFDictionaryRef> values(num_values, NULL);
::CFDictionaryGetKeysAndValues(plist.get(), NULL,
(const void **)&values[0]);
if (num_values == 1) {
success = GetModuleSpecInfoFromUUIDDictionary(
values[0], module_spec, error);
return success;
} else {
for (CFIndex i = 0; i < num_values; ++i) {
ModuleSpec curr_module_spec;
if (GetModuleSpecInfoFromUUIDDictionary(
values[i], curr_module_spec, error)) {
if (module_spec.GetArchitecture().IsCompatibleMatch(
curr_module_spec.GetArchitecture())) {
module_spec = curr_module_spec;
return true;
}
}
}
}
}
}
}
} else {
if (!uuid_str.empty())
LLDB_LOGF(log, "Called %s on %s, no matches",
g_dsym_for_uuid_exe_path, uuid_str.c_str());
else if (file_path[0] != '\0')
LLDB_LOGF(log, "Called %s on %s, no matches",
g_dsym_for_uuid_exe_path, file_path);
}
}
}
}
return success;
}
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