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//===-- PlatformDarwin.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 "PlatformDarwin.h"
#include <string.h>
#include <algorithm>
#include <memory>
#include <mutex>
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Breakpoint/BreakpointSite.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Host/Host.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Host/XML.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Symbol/LocateSymbolFile.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Target/Platform.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/ProcessInfo.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/Timer.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Threading.h"
#include "llvm/Support/VersionTuple.h"
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
using namespace lldb;
using namespace lldb_private;
/// Default Constructor
PlatformDarwin::PlatformDarwin(bool is_host)
: PlatformPOSIX(is_host), // This is the local host platform
m_developer_directory() {}
/// Destructor.
///
/// The destructor is virtual since this class is designed to be
/// inherited from by the plug-in instance.
PlatformDarwin::~PlatformDarwin() {}
FileSpecList PlatformDarwin::LocateExecutableScriptingResources(
Target *target, Module &module, Stream *feedback_stream) {
FileSpecList file_list;
if (target &&
target->GetDebugger().GetScriptLanguage() == eScriptLanguagePython) {
// NB some extensions might be meaningful and should not be stripped -
// "this.binary.file"
// should not lose ".file" but GetFileNameStrippingExtension() will do
// precisely that. Ideally, we should have a per-platform list of
// extensions (".exe", ".app", ".dSYM", ".framework") which should be
// stripped while leaving "this.binary.file" as-is.
FileSpec module_spec = module.GetFileSpec();
if (module_spec) {
if (SymbolFile *symfile = module.GetSymbolFile()) {
ObjectFile *objfile = symfile->GetObjectFile();
if (objfile) {
FileSpec symfile_spec(objfile->GetFileSpec());
if (symfile_spec &&
strcasestr(symfile_spec.GetPath().c_str(),
".dSYM/Contents/Resources/DWARF") != nullptr &&
FileSystem::Instance().Exists(symfile_spec)) {
while (module_spec.GetFilename()) {
std::string module_basename(
module_spec.GetFilename().GetCString());
std::string original_module_basename(module_basename);
bool was_keyword = false;
// FIXME: for Python, we cannot allow certain characters in
// module
// filenames we import. Theoretically, different scripting
// languages may have different sets of forbidden tokens in
// filenames, and that should be dealt with by each
// ScriptInterpreter. For now, we just replace dots with
// underscores, but if we ever support anything other than
// Python we will need to rework this
std::replace(module_basename.begin(), module_basename.end(), '.',
'_');
std::replace(module_basename.begin(), module_basename.end(), ' ',
'_');
std::replace(module_basename.begin(), module_basename.end(), '-',
'_');
ScriptInterpreter *script_interpreter =
target->GetDebugger().GetScriptInterpreter();
if (script_interpreter &&
script_interpreter->IsReservedWord(module_basename.c_str())) {
module_basename.insert(module_basename.begin(), '_');
was_keyword = true;
}
StreamString path_string;
StreamString original_path_string;
// for OSX we are going to be in
// .dSYM/Contents/Resources/DWARF/<basename> let us go to
// .dSYM/Contents/Resources/Python/<basename>.py and see if the
// file exists
path_string.Printf("%s/../Python/%s.py",
symfile_spec.GetDirectory().GetCString(),
module_basename.c_str());
original_path_string.Printf(
"%s/../Python/%s.py",
symfile_spec.GetDirectory().GetCString(),
original_module_basename.c_str());
FileSpec script_fspec(path_string.GetString());
FileSystem::Instance().Resolve(script_fspec);
FileSpec orig_script_fspec(original_path_string.GetString());
FileSystem::Instance().Resolve(orig_script_fspec);
// if we did some replacements of reserved characters, and a
// file with the untampered name exists, then warn the user
// that the file as-is shall not be loaded
if (feedback_stream) {
if (module_basename != original_module_basename &&
FileSystem::Instance().Exists(orig_script_fspec)) {
const char *reason_for_complaint =
was_keyword ? "conflicts with a keyword"
: "contains reserved characters";
if (FileSystem::Instance().Exists(script_fspec))
feedback_stream->Printf(
"warning: the symbol file '%s' contains a debug "
"script. However, its name"
" '%s' %s and as such cannot be loaded. LLDB will"
" load '%s' instead. Consider removing the file with "
"the malformed name to"
" eliminate this warning.\n",
symfile_spec.GetPath().c_str(),
original_path_string.GetData(), reason_for_complaint,
path_string.GetData());
else
feedback_stream->Printf(
"warning: the symbol file '%s' contains a debug "
"script. However, its name"
" %s and as such cannot be loaded. If you intend"
" to have this script loaded, please rename '%s' to "
"'%s' and retry.\n",
symfile_spec.GetPath().c_str(), reason_for_complaint,
original_path_string.GetData(), path_string.GetData());
}
}
if (FileSystem::Instance().Exists(script_fspec)) {
file_list.Append(script_fspec);
break;
}
// If we didn't find the python file, then keep stripping the
// extensions and try again
ConstString filename_no_extension(
module_spec.GetFileNameStrippingExtension());
if (module_spec.GetFilename() == filename_no_extension)
break;
module_spec.GetFilename() = filename_no_extension;
}
}
}
}
}
}
return file_list;
}
Status PlatformDarwin::ResolveSymbolFile(Target &target,
const ModuleSpec &sym_spec,
FileSpec &sym_file) {
sym_file = sym_spec.GetSymbolFileSpec();
if (FileSystem::Instance().IsDirectory(sym_file)) {
sym_file = Symbols::FindSymbolFileInBundle(sym_file, sym_spec.GetUUIDPtr(),
sym_spec.GetArchitecturePtr());
}
return {};
}
static lldb_private::Status
MakeCacheFolderForFile(const FileSpec &module_cache_spec) {
FileSpec module_cache_folder =
module_cache_spec.CopyByRemovingLastPathComponent();
return llvm::sys::fs::create_directory(module_cache_folder.GetPath());
}
static lldb_private::Status
BringInRemoteFile(Platform *platform,
const lldb_private::ModuleSpec &module_spec,
const FileSpec &module_cache_spec) {
MakeCacheFolderForFile(module_cache_spec);
Status err = platform->GetFile(module_spec.GetFileSpec(), module_cache_spec);
return err;
}
lldb_private::Status PlatformDarwin::GetSharedModuleWithLocalCache(
const lldb_private::ModuleSpec &module_spec, lldb::ModuleSP &module_sp,
const lldb_private::FileSpecList *module_search_paths_ptr,
lldb::ModuleSP *old_module_sp_ptr, bool *did_create_ptr) {
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
LLDB_LOGF(log,
"[%s] Trying to find module %s/%s - platform path %s/%s symbol "
"path %s/%s",
(IsHost() ? "host" : "remote"),
module_spec.GetFileSpec().GetDirectory().AsCString(),
module_spec.GetFileSpec().GetFilename().AsCString(),
module_spec.GetPlatformFileSpec().GetDirectory().AsCString(),
module_spec.GetPlatformFileSpec().GetFilename().AsCString(),
module_spec.GetSymbolFileSpec().GetDirectory().AsCString(),
module_spec.GetSymbolFileSpec().GetFilename().AsCString());
Status err;
err = ModuleList::GetSharedModule(module_spec, module_sp,
module_search_paths_ptr, old_module_sp_ptr,
did_create_ptr);
if (module_sp)
return err;
if (!IsHost()) {
std::string cache_path(GetLocalCacheDirectory());
// Only search for a locally cached file if we have a valid cache path
if (!cache_path.empty()) {
std::string module_path(module_spec.GetFileSpec().GetPath());
cache_path.append(module_path);
FileSpec module_cache_spec(cache_path);
// if rsync is supported, always bring in the file - rsync will be very
// efficient when files are the same on the local and remote end of the
// connection
if (this->GetSupportsRSync()) {
err = BringInRemoteFile(this, module_spec, module_cache_spec);
if (err.Fail())
return err;
if (FileSystem::Instance().Exists(module_cache_spec)) {
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
LLDB_LOGF(log, "[%s] module %s/%s was rsynced and is now there",
(IsHost() ? "host" : "remote"),
module_spec.GetFileSpec().GetDirectory().AsCString(),
module_spec.GetFileSpec().GetFilename().AsCString());
ModuleSpec local_spec(module_cache_spec,
module_spec.GetArchitecture());
module_sp = std::make_shared<Module>(local_spec);
module_sp->SetPlatformFileSpec(module_spec.GetFileSpec());
return Status();
}
}
// try to find the module in the cache
if (FileSystem::Instance().Exists(module_cache_spec)) {
// get the local and remote MD5 and compare
if (m_remote_platform_sp) {
// when going over the *slow* GDB remote transfer mechanism we first
// check the hashes of the files - and only do the actual transfer if
// they differ
uint64_t high_local, high_remote, low_local, low_remote;
auto MD5 = llvm::sys::fs::md5_contents(module_cache_spec.GetPath());
if (!MD5)
return Status(MD5.getError());
std::tie(high_local, low_local) = MD5->words();
m_remote_platform_sp->CalculateMD5(module_spec.GetFileSpec(),
low_remote, high_remote);
if (low_local != low_remote || high_local != high_remote) {
// bring in the remote file
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
LLDB_LOGF(log,
"[%s] module %s/%s needs to be replaced from remote copy",
(IsHost() ? "host" : "remote"),
module_spec.GetFileSpec().GetDirectory().AsCString(),
module_spec.GetFileSpec().GetFilename().AsCString());
Status err =
BringInRemoteFile(this, module_spec, module_cache_spec);
if (err.Fail())
return err;
}
}
ModuleSpec local_spec(module_cache_spec, module_spec.GetArchitecture());
module_sp = std::make_shared<Module>(local_spec);
module_sp->SetPlatformFileSpec(module_spec.GetFileSpec());
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
LLDB_LOGF(log, "[%s] module %s/%s was found in the cache",
(IsHost() ? "host" : "remote"),
module_spec.GetFileSpec().GetDirectory().AsCString(),
module_spec.GetFileSpec().GetFilename().AsCString());
return Status();
}
// bring in the remote module file
LLDB_LOGF(log, "[%s] module %s/%s needs to come in remotely",
(IsHost() ? "host" : "remote"),
module_spec.GetFileSpec().GetDirectory().AsCString(),
module_spec.GetFileSpec().GetFilename().AsCString());
Status err = BringInRemoteFile(this, module_spec, module_cache_spec);
if (err.Fail())
return err;
if (FileSystem::Instance().Exists(module_cache_spec)) {
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
LLDB_LOGF(log, "[%s] module %s/%s is now cached and fine",
(IsHost() ? "host" : "remote"),
module_spec.GetFileSpec().GetDirectory().AsCString(),
module_spec.GetFileSpec().GetFilename().AsCString());
ModuleSpec local_spec(module_cache_spec, module_spec.GetArchitecture());
module_sp = std::make_shared<Module>(local_spec);
module_sp->SetPlatformFileSpec(module_spec.GetFileSpec());
return Status();
} else
return Status("unable to obtain valid module file");
} else
return Status("no cache path");
} else
return Status("unable to resolve module");
}
Status PlatformDarwin::GetSharedModule(
const ModuleSpec &module_spec, Process *process, ModuleSP &module_sp,
const FileSpecList *module_search_paths_ptr, ModuleSP *old_module_sp_ptr,
bool *did_create_ptr) {
Status error;
module_sp.reset();
if (IsRemote()) {
// If we have a remote platform always, let it try and locate the shared
// module first.
if (m_remote_platform_sp) {
error = m_remote_platform_sp->GetSharedModule(
module_spec, process, module_sp, module_search_paths_ptr,
old_module_sp_ptr, did_create_ptr);
}
}
if (!module_sp) {
// Fall back to the local platform and find the file locally
error = Platform::GetSharedModule(module_spec, process, module_sp,
module_search_paths_ptr,
old_module_sp_ptr, did_create_ptr);
const FileSpec &platform_file = module_spec.GetFileSpec();
if (!module_sp && module_search_paths_ptr && platform_file) {
// We can try to pull off part of the file path up to the bundle
// directory level and try any module search paths...
FileSpec bundle_directory;
if (Host::GetBundleDirectory(platform_file, bundle_directory)) {
if (platform_file == bundle_directory) {
ModuleSpec new_module_spec(module_spec);
new_module_spec.GetFileSpec() = bundle_directory;
if (Host::ResolveExecutableInBundle(new_module_spec.GetFileSpec())) {
Status new_error(Platform::GetSharedModule(
new_module_spec, process, module_sp, nullptr, old_module_sp_ptr,
did_create_ptr));
if (module_sp)
return new_error;
}
} else {
char platform_path[PATH_MAX];
char bundle_dir[PATH_MAX];
platform_file.GetPath(platform_path, sizeof(platform_path));
const size_t bundle_directory_len =
bundle_directory.GetPath(bundle_dir, sizeof(bundle_dir));
char new_path[PATH_MAX];
size_t num_module_search_paths = module_search_paths_ptr->GetSize();
for (size_t i = 0; i < num_module_search_paths; ++i) {
const size_t search_path_len =
module_search_paths_ptr->GetFileSpecAtIndex(i).GetPath(
new_path, sizeof(new_path));
if (search_path_len < sizeof(new_path)) {
snprintf(new_path + search_path_len,
sizeof(new_path) - search_path_len, "/%s",
platform_path + bundle_directory_len);
FileSpec new_file_spec(new_path);
if (FileSystem::Instance().Exists(new_file_spec)) {
ModuleSpec new_module_spec(module_spec);
new_module_spec.GetFileSpec() = new_file_spec;
Status new_error(Platform::GetSharedModule(
new_module_spec, process, module_sp, nullptr,
old_module_sp_ptr, did_create_ptr));
if (module_sp) {
module_sp->SetPlatformFileSpec(new_file_spec);
return new_error;
}
}
}
}
}
}
}
}
if (module_sp)
module_sp->SetPlatformFileSpec(module_spec.GetFileSpec());
return error;
}
size_t
PlatformDarwin::GetSoftwareBreakpointTrapOpcode(Target &target,
BreakpointSite *bp_site) {
const uint8_t *trap_opcode = nullptr;
uint32_t trap_opcode_size = 0;
bool bp_is_thumb = false;
llvm::Triple::ArchType machine = target.GetArchitecture().GetMachine();
switch (machine) {
case llvm::Triple::aarch64_32:
case llvm::Triple::aarch64: {
// 'brk #0' or 0xd4200000 in BE byte order
static const uint8_t g_arm64_breakpoint_opcode[] = {0x00, 0x00, 0x20, 0xD4};
trap_opcode = g_arm64_breakpoint_opcode;
trap_opcode_size = sizeof(g_arm64_breakpoint_opcode);
} break;
case llvm::Triple::thumb:
bp_is_thumb = true;
LLVM_FALLTHROUGH;
case llvm::Triple::arm: {
static const uint8_t g_arm_breakpoint_opcode[] = {0xFE, 0xDE, 0xFF, 0xE7};
static const uint8_t g_thumb_breakpooint_opcode[] = {0xFE, 0xDE};
// Auto detect arm/thumb if it wasn't explicitly specified
if (!bp_is_thumb) {
lldb::BreakpointLocationSP bp_loc_sp(bp_site->GetOwnerAtIndex(0));
if (bp_loc_sp)
bp_is_thumb = bp_loc_sp->GetAddress().GetAddressClass() ==
AddressClass::eCodeAlternateISA;
}
if (bp_is_thumb) {
trap_opcode = g_thumb_breakpooint_opcode;
trap_opcode_size = sizeof(g_thumb_breakpooint_opcode);
break;
}
trap_opcode = g_arm_breakpoint_opcode;
trap_opcode_size = sizeof(g_arm_breakpoint_opcode);
} break;
case llvm::Triple::ppc:
case llvm::Triple::ppc64: {
static const uint8_t g_ppc_breakpoint_opcode[] = {0x7F, 0xC0, 0x00, 0x08};
trap_opcode = g_ppc_breakpoint_opcode;
trap_opcode_size = sizeof(g_ppc_breakpoint_opcode);
} break;
default:
return Platform::GetSoftwareBreakpointTrapOpcode(target, bp_site);
}
if (trap_opcode && trap_opcode_size) {
if (bp_site->SetTrapOpcode(trap_opcode, trap_opcode_size))
return trap_opcode_size;
}
return 0;
}
bool PlatformDarwin::ModuleIsExcludedForUnconstrainedSearches(
lldb_private::Target &target, const lldb::ModuleSP &module_sp) {
if (!module_sp)
return false;
ObjectFile *obj_file = module_sp->GetObjectFile();
if (!obj_file)
return false;
ObjectFile::Type obj_type = obj_file->GetType();
return obj_type == ObjectFile::eTypeDynamicLinker;
}
bool PlatformDarwin::x86GetSupportedArchitectureAtIndex(uint32_t idx,
ArchSpec &arch) {
ArchSpec host_arch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault);
if (host_arch.GetCore() == ArchSpec::eCore_x86_64_x86_64h) {
switch (idx) {
case 0:
arch = host_arch;
return true;
case 1:
arch.SetTriple("x86_64-apple-macosx");
return true;
case 2:
arch = HostInfo::GetArchitecture(HostInfo::eArchKind32);
return true;
default:
return false;
}
} else {
if (idx == 0) {
arch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault);
return arch.IsValid();
} else if (idx == 1) {
ArchSpec platform_arch(
HostInfo::GetArchitecture(HostInfo::eArchKindDefault));
ArchSpec platform_arch64(
HostInfo::GetArchitecture(HostInfo::eArchKind64));
if (platform_arch.IsExactMatch(platform_arch64)) {
// This macosx platform supports both 32 and 64 bit. Since we already
// returned the 64 bit arch for idx == 0, return the 32 bit arch for
// idx == 1
arch = HostInfo::GetArchitecture(HostInfo::eArchKind32);
return arch.IsValid();
}
}
}
return false;
}
// The architecture selection rules for arm processors These cpu subtypes have
// distinct names (e.g. armv7f) but armv7 binaries run fine on an armv7f
// processor.
bool PlatformDarwin::ARMGetSupportedArchitectureAtIndex(uint32_t idx,
ArchSpec &arch) {
ArchSpec system_arch(GetSystemArchitecture());
// When lldb is running on a watch or tv, set the arch OS name appropriately.
#if defined(TARGET_OS_TV) && TARGET_OS_TV == 1
#define OSNAME "tvos"
#elif defined(TARGET_OS_WATCH) && TARGET_OS_WATCH == 1
#define OSNAME "watchos"
#elif defined(TARGET_OS_BRIDGE) && TARGET_OS_BRIDGE == 1
#define OSNAME "bridgeos"
#else
#define OSNAME "ios"
#endif
const ArchSpec::Core system_core = system_arch.GetCore();
switch (system_core) {
default:
switch (idx) {
case 0:
arch.SetTriple("arm64-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv7f-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv7k-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv7s-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv7m-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("armv7em-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumbv7f-apple-" OSNAME);
return true;
case 14:
arch.SetTriple("thumbv7k-apple-" OSNAME);
return true;
case 15:
arch.SetTriple("thumbv7s-apple-" OSNAME);
return true;
case 16:
arch.SetTriple("thumbv7m-apple-" OSNAME);
return true;
case 17:
arch.SetTriple("thumbv7em-apple-" OSNAME);
return true;
case 18:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 19:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 20:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 21:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 22:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_arm64:
switch (idx) {
case 0:
arch.SetTriple("arm64-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7s-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv7f-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv7m-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv7em-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv7f-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumbv7k-apple-" OSNAME);
return true;
case 14:
arch.SetTriple("thumbv7s-apple-" OSNAME);
return true;
case 15:
arch.SetTriple("thumbv7m-apple-" OSNAME);
return true;
case 16:
arch.SetTriple("thumbv7em-apple-" OSNAME);
return true;
case 17:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 18:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 19:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 20:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 21:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv7f:
switch (idx) {
case 0:
arch.SetTriple("armv7f-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv7f-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv7k:
switch (idx) {
case 0:
arch.SetTriple("armv7k-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv7k-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv7s:
switch (idx) {
case 0:
arch.SetTriple("armv7s-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv7s-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv7m:
switch (idx) {
case 0:
arch.SetTriple("armv7m-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv7m-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv7em:
switch (idx) {
case 0:
arch.SetTriple("armv7em-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv7em-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 12:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 13:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv7:
switch (idx) {
case 0:
arch.SetTriple("armv7-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("thumbv7-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 10:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 11:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv6m:
switch (idx) {
case 0:
arch.SetTriple("armv6m-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("thumbv6m-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 8:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 9:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv6:
switch (idx) {
case 0:
arch.SetTriple("armv6-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("thumbv6-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 6:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 7:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv5:
switch (idx) {
case 0:
arch.SetTriple("armv5-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("thumbv5-apple-" OSNAME);
return true;
case 4:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 5:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
case ArchSpec::eCore_arm_armv4:
switch (idx) {
case 0:
arch.SetTriple("armv4-apple-" OSNAME);
return true;
case 1:
arch.SetTriple("arm-apple-" OSNAME);
return true;
case 2:
arch.SetTriple("thumbv4t-apple-" OSNAME);
return true;
case 3:
arch.SetTriple("thumb-apple-" OSNAME);
return true;
default:
break;
}
break;
}
arch.Clear();
return false;
}
static FileSpec GetXcodeSelectPath() {
static FileSpec g_xcode_select_filespec;
if (!g_xcode_select_filespec) {
FileSpec xcode_select_cmd("/usr/bin/xcode-select");
if (FileSystem::Instance().Exists(xcode_select_cmd)) {
int exit_status = -1;
int signo = -1;
std::string command_output;
Status status =
Host::RunShellCommand("/usr/bin/xcode-select --print-path",
nullptr, // current working directory
&exit_status, &signo, &command_output,
std::chrono::seconds(2), // short timeout
false); // don't run in a shell
if (status.Success() && exit_status == 0 && !command_output.empty()) {
size_t first_non_newline = command_output.find_last_not_of("\r\n");
if (first_non_newline != std::string::npos) {
command_output.erase(first_non_newline + 1);
}
g_xcode_select_filespec = FileSpec(command_output);
}
}
}
return g_xcode_select_filespec;
}
// Return a directory path like /Applications/Xcode.app/Contents/Developer
const char *PlatformDarwin::GetDeveloperDirectory() {
std::lock_guard<std::mutex> guard(m_mutex);
if (m_developer_directory.empty()) {
bool developer_dir_path_valid = false;
char developer_dir_path[PATH_MAX];
// Get the lldb framework's file path, and if it exists, truncate some
// components to only the developer directory path.
FileSpec temp_file_spec = HostInfo::GetShlibDir();
if (temp_file_spec) {
if (temp_file_spec.GetPath(developer_dir_path,
sizeof(developer_dir_path))) {
// e.g.
// /Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework
char *shared_frameworks =
strstr(developer_dir_path, "/SharedFrameworks/LLDB.framework");
if (shared_frameworks) {
shared_frameworks[0] = '\0'; // truncate developer_dir_path at this point
strncat (developer_dir_path, "/Developer", sizeof (developer_dir_path) - 1); // add /Developer on
developer_dir_path_valid = true;
} else {
// e.g.
// /Applications/Xcode.app/Contents/Developer/Toolchains/iOS11.2.xctoolchain/System/Library/PrivateFrameworks/LLDB.framework
char *developer_toolchains =
strstr(developer_dir_path, "/Contents/Developer/Toolchains/");
if (developer_toolchains) {
developer_toolchains += sizeof ("/Contents/Developer") - 1;
developer_toolchains[0] = '\0'; // truncate developer_dir_path at this point
developer_dir_path_valid = true;
}
}
}
}
if (!developer_dir_path_valid) {
std::string xcode_dir_path;
const char *xcode_select_prefix_dir = getenv("XCODE_SELECT_PREFIX_DIR");
if (xcode_select_prefix_dir)
xcode_dir_path.append(xcode_select_prefix_dir);
xcode_dir_path.append("/usr/share/xcode-select/xcode_dir_path");
temp_file_spec.SetFile(xcode_dir_path, FileSpec::Style::native);
auto dir_buffer =
FileSystem::Instance().CreateDataBuffer(temp_file_spec.GetPath());
if (dir_buffer && dir_buffer->GetByteSize() > 0) {
llvm::StringRef path_ref(dir_buffer->GetChars());
// Trim tailing newlines and make sure there is enough room for a null
// terminator.
path_ref =
path_ref.rtrim("\r\n").take_front(sizeof(developer_dir_path) - 1);
::memcpy(developer_dir_path, path_ref.data(), path_ref.size());
developer_dir_path[path_ref.size()] = '\0';
developer_dir_path_valid = true;
}
}
if (!developer_dir_path_valid) {
FileSpec devel_dir = GetXcodeSelectPath();
if (FileSystem::Instance().IsDirectory(devel_dir)) {
devel_dir.GetPath(&developer_dir_path[0], sizeof(developer_dir_path));
developer_dir_path_valid = true;
}
}
if (developer_dir_path_valid) {
temp_file_spec.SetFile(developer_dir_path, FileSpec::Style::native);
if (FileSystem::Instance().Exists(temp_file_spec)) {
m_developer_directory.assign(developer_dir_path);
return m_developer_directory.c_str();
}
}
// Assign a single NULL character so we know we tried to find the device
// support directory and we don't keep trying to find it over and over.
m_developer_directory.assign(1, '\0');
}
// We should have put a single NULL character into m_developer_directory or
// it should have a valid path if the code gets here
assert(m_developer_directory.empty() == false);
if (m_developer_directory[0])
return m_developer_directory.c_str();
return nullptr;
}
BreakpointSP PlatformDarwin::SetThreadCreationBreakpoint(Target &target) {
BreakpointSP bp_sp;
static const char *g_bp_names[] = {
"start_wqthread", "_pthread_wqthread", "_pthread_start",
};
static const char *g_bp_modules[] = {"libsystem_c.dylib",
"libSystem.B.dylib"};
FileSpecList bp_modules;
for (size_t i = 0; i < llvm::array_lengthof(g_bp_modules); i++) {
const char *bp_module = g_bp_modules[i];
bp_modules.EmplaceBack(bp_module);
}
bool internal = true;
bool hardware = false;
LazyBool skip_prologue = eLazyBoolNo;
bp_sp = target.CreateBreakpoint(&bp_modules, nullptr, g_bp_names,
llvm::array_lengthof(g_bp_names),
eFunctionNameTypeFull, eLanguageTypeUnknown,
0, skip_prologue, internal, hardware);
bp_sp->SetBreakpointKind("thread-creation");
return bp_sp;
}
int32_t
PlatformDarwin::GetResumeCountForLaunchInfo(ProcessLaunchInfo &launch_info) {
const FileSpec &shell = launch_info.GetShell();
if (!shell)
return 1;
std::string shell_string = shell.GetPath();
const char *shell_name = strrchr(shell_string.c_str(), '/');
if (shell_name == nullptr)
shell_name = shell_string.c_str();
else
shell_name++;
if (strcmp(shell_name, "sh") == 0) {
// /bin/sh re-exec's itself as /bin/bash requiring another resume. But it
// only does this if the COMMAND_MODE environment variable is set to
// "legacy".
if (launch_info.GetEnvironment().lookup("COMMAND_MODE") == "legacy")
return 2;
return 1;
} else if (strcmp(shell_name, "csh") == 0 ||
strcmp(shell_name, "tcsh") == 0 ||
strcmp(shell_name, "zsh") == 0) {
// csh and tcsh always seem to re-exec themselves.
return 2;
} else
return 1;
}
void PlatformDarwin::CalculateTrapHandlerSymbolNames() {
m_trap_handlers.push_back(ConstString("_sigtramp"));
}
static const char *const sdk_strings[] = {
"MacOSX", "iPhoneSimulator", "iPhoneOS",
};
static FileSpec CheckPathForXcode(const FileSpec &fspec) {
if (FileSystem::Instance().Exists(fspec)) {
const char substr[] = ".app/Contents";
std::string path_to_shlib = fspec.GetPath();
size_t pos = path_to_shlib.rfind(substr);
if (pos != std::string::npos) {
path_to_shlib.erase(pos + strlen(substr));
FileSpec ret(path_to_shlib);
FileSpec xcode_binary_path = ret;
xcode_binary_path.AppendPathComponent("MacOS");
xcode_binary_path.AppendPathComponent("Xcode");
if (FileSystem::Instance().Exists(xcode_binary_path)) {
return ret;
}
}
}
return FileSpec();
}
static FileSpec GetXcodeContentsPath() {
static FileSpec g_xcode_filespec;
static llvm::once_flag g_once_flag;
llvm::call_once(g_once_flag, []() {
FileSpec fspec;
// First get the program file spec. If lldb.so or LLDB.framework is running
// in a program and that program is Xcode, the path returned with be the
// path to Xcode.app/Contents/MacOS/Xcode, so this will be the correct
// Xcode to use.
fspec = HostInfo::GetProgramFileSpec();
if (fspec) {
// Ignore the current binary if it is python.
std::string basename_lower = fspec.GetFilename().GetCString();
std::transform(basename_lower.begin(), basename_lower.end(),
basename_lower.begin(), tolower);
if (basename_lower != "python") {
g_xcode_filespec = CheckPathForXcode(fspec);
}
}
// Next check DEVELOPER_DIR environment variable
if (!g_xcode_filespec) {
const char *developer_dir_env_var = getenv("DEVELOPER_DIR");
if (developer_dir_env_var && developer_dir_env_var[0]) {
FileSpec developer_dir_spec = FileSpec(developer_dir_env_var);
FileSystem::Instance().Resolve(developer_dir_spec);
g_xcode_filespec = CheckPathForXcode(developer_dir_spec);
}
// Fall back to using "xcode-select" to find the selected Xcode
if (!g_xcode_filespec) {
FileSpec xcode_select_path(GetXcodeSelectPath());
xcode_select_path.RemoveLastPathComponent();
g_xcode_filespec = CheckPathForXcode(xcode_select_path);
}
}
});
return g_xcode_filespec;
}
static FileSpec GetCommandLineToolsLibraryPath() {
static FileSpec g_command_line_tools_filespec;
if (!g_command_line_tools_filespec) {
FileSpec command_line_tools_path(GetXcodeSelectPath());
command_line_tools_path.AppendPathComponent("Library");
if (FileSystem::Instance().Exists(command_line_tools_path)) {
g_command_line_tools_filespec = command_line_tools_path;
}
}
return g_command_line_tools_filespec;
}
bool PlatformDarwin::SDKSupportsModules(SDKType sdk_type,
llvm::VersionTuple version) {
switch (sdk_type) {
case SDKType::MacOSX:
return version >= llvm::VersionTuple(10, 10);
case SDKType::iPhoneOS:
case SDKType::iPhoneSimulator:
return version >= llvm::VersionTuple(8);
}
return false;
}
bool PlatformDarwin::SDKSupportsModules(SDKType desired_type,
const FileSpec &sdk_path) {
ConstString last_path_component = sdk_path.GetLastPathComponent();
if (last_path_component) {
const llvm::StringRef sdk_name = last_path_component.GetStringRef();
if (!sdk_name.startswith(sdk_strings[desired_type]))
return false;
auto version_part =
sdk_name.drop_front(strlen(sdk_strings[desired_type]));
version_part.consume_back(".sdk");
llvm::VersionTuple version;
if (version.tryParse(version_part))
return false;
return SDKSupportsModules(desired_type, version);
}
return false;
}
FileSystem::EnumerateDirectoryResult PlatformDarwin::DirectoryEnumerator(
void *baton, llvm::sys::fs::file_type file_type, llvm::StringRef path) {
SDKEnumeratorInfo *enumerator_info = static_cast<SDKEnumeratorInfo *>(baton);
FileSpec spec(path);
if (SDKSupportsModules(enumerator_info->sdk_type, spec)) {
enumerator_info->found_path = spec;
return FileSystem::EnumerateDirectoryResult::eEnumerateDirectoryResultNext;
}
return FileSystem::EnumerateDirectoryResult::eEnumerateDirectoryResultNext;
}
FileSpec PlatformDarwin::FindSDKInXcodeForModules(SDKType sdk_type,
const FileSpec &sdks_spec) {
// Look inside Xcode for the required installed iOS SDK version
if (!FileSystem::Instance().IsDirectory(sdks_spec)) {
return FileSpec();
}
const bool find_directories = true;
const bool find_files = false;
const bool find_other = true; // include symlinks
SDKEnumeratorInfo enumerator_info;
enumerator_info.sdk_type = sdk_type;
FileSystem::Instance().EnumerateDirectory(
sdks_spec.GetPath(), find_directories, find_files, find_other,
DirectoryEnumerator, &enumerator_info);
if (FileSystem::Instance().IsDirectory(enumerator_info.found_path))
return enumerator_info.found_path;
else
return FileSpec();
}
FileSpec PlatformDarwin::GetSDKDirectoryForModules(SDKType sdk_type) {
switch (sdk_type) {
case SDKType::MacOSX:
case SDKType::iPhoneSimulator:
case SDKType::iPhoneOS:
break;
}
FileSpec sdks_spec = GetXcodeContentsPath();
sdks_spec.AppendPathComponent("Developer");
sdks_spec.AppendPathComponent("Platforms");
switch (sdk_type) {
case SDKType::MacOSX:
sdks_spec.AppendPathComponent("MacOSX.platform");
break;
case SDKType::iPhoneSimulator:
sdks_spec.AppendPathComponent("iPhoneSimulator.platform");
break;
case SDKType::iPhoneOS:
sdks_spec.AppendPathComponent("iPhoneOS.platform");
break;
}
sdks_spec.AppendPathComponent("Developer");
sdks_spec.AppendPathComponent("SDKs");
if (sdk_type == SDKType::MacOSX) {
llvm::VersionTuple version = HostInfo::GetOSVersion();
if (!version.empty()) {
if (SDKSupportsModules(SDKType::MacOSX, version)) {
// If the Xcode SDKs are not available then try to use the
// Command Line Tools one which is only for MacOSX.
if (!FileSystem::Instance().Exists(sdks_spec)) {
sdks_spec = GetCommandLineToolsLibraryPath();
sdks_spec.AppendPathComponent("SDKs");
}
// We slightly prefer the exact SDK for this machine. See if it is
// there.
FileSpec native_sdk_spec = sdks_spec;
StreamString native_sdk_name;
native_sdk_name.Printf("MacOSX%u.%u.sdk", version.getMajor(),
version.getMinor().getValueOr(0));
native_sdk_spec.AppendPathComponent(native_sdk_name.GetString());
if (FileSystem::Instance().Exists(native_sdk_spec)) {
return native_sdk_spec;
}
}
}
}
return FindSDKInXcodeForModules(sdk_type, sdks_spec);
}
std::tuple<llvm::VersionTuple, llvm::StringRef>
PlatformDarwin::ParseVersionBuildDir(llvm::StringRef dir) {
llvm::StringRef build;
llvm::StringRef version_str;
llvm::StringRef build_str;
std::tie(version_str, build_str) = dir.split(' ');
llvm::VersionTuple version;
if (!version.tryParse(version_str) ||
build_str.empty()) {
if (build_str.consume_front("(")) {
size_t pos = build_str.find(')');
build = build_str.slice(0, pos);
}
}
return std::make_tuple(version, build);
}
void PlatformDarwin::AddClangModuleCompilationOptionsForSDKType(
Target *target, std::vector<std::string> &options, SDKType sdk_type) {
const std::vector<std::string> apple_arguments = {
"-x", "objective-c++", "-fobjc-arc",
"-fblocks", "-D_ISO646_H", "-D__ISO646_H",
"-fgnuc-version=4.2.1"};
options.insert(options.end(), apple_arguments.begin(), apple_arguments.end());
StreamString minimum_version_option;
bool use_current_os_version = false;
switch (sdk_type) {
case SDKType::iPhoneOS:
#if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
use_current_os_version = true;
#else
use_current_os_version = false;
#endif
break;
case SDKType::iPhoneSimulator:
use_current_os_version = false;
break;
case SDKType::MacOSX:
#if defined(__i386__) || defined(__x86_64__)
use_current_os_version = true;
#else
use_current_os_version = false;
#endif
break;
}
llvm::VersionTuple version;
if (use_current_os_version)
version = GetOSVersion();
else if (target) {
// Our OS doesn't match our executable so we need to get the min OS version
// from the object file
ModuleSP exe_module_sp = target->GetExecutableModule();
if (exe_module_sp) {
ObjectFile *object_file = exe_module_sp->GetObjectFile();
if (object_file)
version = object_file->GetMinimumOSVersion();
}
}
// Only add the version-min options if we got a version from somewhere
if (!version.empty()) {
switch (sdk_type) {
case SDKType::iPhoneOS:
minimum_version_option.PutCString("-mios-version-min=");
minimum_version_option.PutCString(version.getAsString());
break;
case SDKType::iPhoneSimulator:
minimum_version_option.PutCString("-mios-simulator-version-min=");
minimum_version_option.PutCString(version.getAsString());
break;
case SDKType::MacOSX:
minimum_version_option.PutCString("-mmacosx-version-min=");
minimum_version_option.PutCString(version.getAsString());
}
options.push_back(minimum_version_option.GetString());
}
FileSpec sysroot_spec;
// Scope for mutex locker below
{
std::lock_guard<std::mutex> guard(m_mutex);
sysroot_spec = GetSDKDirectoryForModules(sdk_type);
}
if (FileSystem::Instance().IsDirectory(sysroot_spec.GetPath())) {
options.push_back("-isysroot");
options.push_back(sysroot_spec.GetPath());
}
}
ConstString PlatformDarwin::GetFullNameForDylib(ConstString basename) {
if (basename.IsEmpty())
return basename;
StreamString stream;
stream.Printf("lib%s.dylib", basename.GetCString());
return ConstString(stream.GetString());
}
llvm::VersionTuple PlatformDarwin::GetOSVersion(Process *process) {
if (process && strstr(GetPluginName().GetCString(), "-simulator")) {
lldb_private::ProcessInstanceInfo proc_info;
if (Host::GetProcessInfo(process->GetID(), proc_info)) {
const Environment &env = proc_info.GetEnvironment();
llvm::VersionTuple result;
if (!result.tryParse(env.lookup("SIMULATOR_RUNTIME_VERSION")))
return result;
std::string dyld_root_path = env.lookup("DYLD_ROOT_PATH");
if (!dyld_root_path.empty()) {
dyld_root_path += "/System/Library/CoreServices/SystemVersion.plist";
ApplePropertyList system_version_plist(dyld_root_path.c_str());
std::string product_version;
if (system_version_plist.GetValueAsString("ProductVersion",
product_version)) {
if (!result.tryParse(product_version))
return result;
}
}
}
// For simulator platforms, do NOT call back through
// Platform::GetOSVersion() as it might call Process::GetHostOSVersion()
// which we don't want as it will be incorrect
return llvm::VersionTuple();
}
return Platform::GetOSVersion(process);
}
lldb_private::FileSpec PlatformDarwin::LocateExecutable(const char *basename) {
// A collection of SBFileSpec whose SBFileSpec.m_directory members are filled
// in with
// any executable directories that should be searched.
static std::vector<FileSpec> g_executable_dirs;
// Find the global list of directories that we will search for executables
// once so we don't keep doing the work over and over.
static llvm::once_flag g_once_flag;
llvm::call_once(g_once_flag, []() {
// When locating executables, trust the DEVELOPER_DIR first if it is set
FileSpec xcode_contents_dir = GetXcodeContentsPath();
if (xcode_contents_dir) {
FileSpec xcode_lldb_resources = xcode_contents_dir;
xcode_lldb_resources.AppendPathComponent("SharedFrameworks");
xcode_lldb_resources.AppendPathComponent("LLDB.framework");
xcode_lldb_resources.AppendPathComponent("Resources");
if (FileSystem::Instance().Exists(xcode_lldb_resources)) {
FileSpec dir;
dir.GetDirectory().SetCString(xcode_lldb_resources.GetPath().c_str());
g_executable_dirs.push_back(dir);
}
}
// Xcode might not be installed so we also check for the Command Line Tools.
FileSpec command_line_tools_dir = GetCommandLineToolsLibraryPath();
if (command_line_tools_dir) {
FileSpec cmd_line_lldb_resources = command_line_tools_dir;
cmd_line_lldb_resources.AppendPathComponent("PrivateFrameworks");
cmd_line_lldb_resources.AppendPathComponent("LLDB.framework");
cmd_line_lldb_resources.AppendPathComponent("Resources");
if (FileSystem::Instance().Exists(cmd_line_lldb_resources)) {
FileSpec dir;
dir.GetDirectory().SetCString(
cmd_line_lldb_resources.GetPath().c_str());
g_executable_dirs.push_back(dir);
}
}
});
// Now search the global list of executable directories for the executable we
// are looking for
for (const auto &executable_dir : g_executable_dirs) {
FileSpec executable_file;
executable_file.GetDirectory() = executable_dir.GetDirectory();
executable_file.GetFilename().SetCString(basename);
if (FileSystem::Instance().Exists(executable_file))
return executable_file;
}
return FileSpec();
}
lldb_private::Status
PlatformDarwin::LaunchProcess(lldb_private::ProcessLaunchInfo &launch_info) {
// Starting in Fall 2016 OSes, NSLog messages only get mirrored to stderr if
// the OS_ACTIVITY_DT_MODE environment variable is set. (It doesn't require
// any specific value; rather, it just needs to exist). We will set it here
// as long as the IDE_DISABLED_OS_ACTIVITY_DT_MODE flag is not set. Xcode
// makes use of IDE_DISABLED_OS_ACTIVITY_DT_MODE to tell
// LLDB *not* to muck with the OS_ACTIVITY_DT_MODE flag when they
// specifically want it unset.
const char *disable_env_var = "IDE_DISABLED_OS_ACTIVITY_DT_MODE";
auto &env_vars = launch_info.GetEnvironment();
if (!env_vars.count(disable_env_var)) {
// We want to make sure that OS_ACTIVITY_DT_MODE is set so that we get
// os_log and NSLog messages mirrored to the target process stderr.
env_vars.try_emplace("OS_ACTIVITY_DT_MODE", "enable");
}
// Let our parent class do the real launching.
return PlatformPOSIX::LaunchProcess(launch_info);
}
lldb_private::Status
PlatformDarwin::FindBundleBinaryInExecSearchPaths (const ModuleSpec &module_spec, Process *process,
ModuleSP &module_sp,
const FileSpecList *module_search_paths_ptr,
ModuleSP *old_module_sp_ptr, bool *did_create_ptr)
{
const FileSpec &platform_file = module_spec.GetFileSpec();
// See if the file is present in any of the module_search_paths_ptr
// directories.
if (!module_sp && module_search_paths_ptr && platform_file) {
// create a vector of all the file / directory names in platform_file e.g.
// this might be
// /System/Library/PrivateFrameworks/UIFoundation.framework/UIFoundation
//
// We'll need to look in the module_search_paths_ptr directories for both
// "UIFoundation" and "UIFoundation.framework" -- most likely the latter
// will be the one we find there.
FileSpec platform_pull_upart(platform_file);
std::vector<std::string> path_parts;
path_parts.push_back(
platform_pull_upart.GetLastPathComponent().AsCString());
while (platform_pull_upart.RemoveLastPathComponent()) {
ConstString part = platform_pull_upart.GetLastPathComponent();
path_parts.push_back(part.AsCString());
}
const size_t path_parts_size = path_parts.size();
size_t num_module_search_paths = module_search_paths_ptr->GetSize();
for (size_t i = 0; i < num_module_search_paths; ++i) {
Log *log_verbose = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOGF(
log_verbose,
"PlatformRemoteDarwinDevice::GetSharedModule searching for binary in "
"search-path %s",
module_search_paths_ptr->GetFileSpecAtIndex(i).GetPath().c_str());
// Create a new FileSpec with this module_search_paths_ptr plus just the
// filename ("UIFoundation"), then the parent dir plus filename
// ("UIFoundation.framework/UIFoundation") etc - up to four names (to
// handle "Foo.framework/Contents/MacOS/Foo")
for (size_t j = 0; j < 4 && j < path_parts_size - 1; ++j) {
FileSpec path_to_try(module_search_paths_ptr->GetFileSpecAtIndex(i));
// Add the components backwards. For
// .../PrivateFrameworks/UIFoundation.framework/UIFoundation path_parts
// is
// [0] UIFoundation
// [1] UIFoundation.framework
// [2] PrivateFrameworks
//
// and if 'j' is 2, we want to append path_parts[1] and then
// path_parts[0], aka 'UIFoundation.framework/UIFoundation', to the
// module_search_paths_ptr path.
for (int k = j; k >= 0; --k) {
path_to_try.AppendPathComponent(path_parts[k]);
}
if (FileSystem::Instance().Exists(path_to_try)) {
ModuleSpec new_module_spec(module_spec);
new_module_spec.GetFileSpec() = path_to_try;
Status new_error(Platform::GetSharedModule(
new_module_spec, process, module_sp, nullptr, old_module_sp_ptr,
did_create_ptr));
if (module_sp) {
module_sp->SetPlatformFileSpec(path_to_try);
return new_error;
}
}
}
}
}
return Status();
}