static bool
SkinnyMachOFileContainsArchAndUUID
(
const FileSpec &file_spec,
const ArchSpec *arch,
const lldb_private::UUID *uuid, // the UUID we are looking for
off_t file_offset,
DataExtractor& data,
uint32_t data_offset,
const uint32_t magic
)
{
assert(magic == HeaderMagic32 || magic == HeaderMagic32Swapped || magic == HeaderMagic64 || magic == HeaderMagic64Swapped);
if (magic == HeaderMagic32 || magic == HeaderMagic64)
data.SetByteOrder (lldb::endian::InlHostByteOrder());
else if (lldb::endian::InlHostByteOrder() == eByteOrderBig)
data.SetByteOrder (eByteOrderLittle);
else
data.SetByteOrder (eByteOrderBig);
uint32_t i;
const uint32_t cputype = data.GetU32(&data_offset); // cpu specifier
const uint32_t cpusubtype = data.GetU32(&data_offset); // machine specifier
data_offset+=4; // Skip mach file type
const uint32_t ncmds = data.GetU32(&data_offset); // number of load commands
const uint32_t sizeofcmds = data.GetU32(&data_offset); // the size of all the load commands
data_offset+=4; // Skip flags
// Check the architecture if we have a valid arch pointer
if (arch)
{
ArchSpec file_arch(eArchTypeMachO, cputype, cpusubtype);
if (!file_arch.IsCompatibleMatch(*arch))
return false;
}
// The file exists, and if a valid arch pointer was passed in we know
// if already matches, so we can return if we aren't looking for a specific
// UUID
if (uuid == NULL)
return true;
if (magic == HeaderMagic64Swapped || magic == HeaderMagic64)
data_offset += 4; // Skip reserved field for in mach_header_64
// Make sure we have enough data for all the load commands
if (magic == HeaderMagic64Swapped || magic == HeaderMagic64)
{
if (data.GetByteSize() < sizeof(struct mach_header_64) + sizeofcmds)
{
DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, sizeof(struct mach_header_64) + sizeofcmds));
data.SetData (data_buffer_sp);
}
}
else
{
if (data.GetByteSize() < sizeof(struct mach_header) + sizeofcmds)
{
DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, sizeof(struct mach_header) + sizeofcmds));
data.SetData (data_buffer_sp);
}
}
for (i=0; i<ncmds; i++)
{
const uint32_t cmd_offset = data_offset; // Save this data_offset in case parsing of the segment goes awry!
uint32_t cmd = data.GetU32(&data_offset);
uint32_t cmd_size = data.GetU32(&data_offset);
if (cmd == LoadCommandUUID)
{
lldb_private::UUID file_uuid (data.GetData(&data_offset, 16), 16);
if (file_uuid == *uuid)
return true;
// Emit some warning messages since the UUIDs do not match!
char path_buf[PATH_MAX];
path_buf[0] = '\0';
const char *path = file_spec.GetPath(path_buf, PATH_MAX) ? path_buf
: file_spec.GetFilename().AsCString();
StreamString ss_m_uuid, ss_o_uuid;
uuid->Dump(&ss_m_uuid);
file_uuid.Dump(&ss_o_uuid);
Host::SystemLog (Host::eSystemLogWarning,
"warning: UUID mismatch detected between binary (%s) and:\n\t'%s' (%s)\n",
ss_m_uuid.GetData(), path, ss_o_uuid.GetData());
return false;
}
data_offset = cmd_offset + cmd_size;
}
return false;
}
FileSourceFactory::FileSourceFactory(const FileSpec & fileSpec)
: _fileName(fileSpec.getFileName())
{
}
bool
UniversalMachOFileContainsArchAndUUID
(
const FileSpec &file_spec,
const ArchSpec *arch,
const lldb_private::UUID *uuid,
off_t file_offset,
DataExtractor& data,
uint32_t data_offset,
const uint32_t magic
)
{
assert(magic == UniversalMagic || magic == UniversalMagicSwapped);
// Universal mach-o files always have their headers encoded as BIG endian
data.SetByteOrder(eByteOrderBig);
uint32_t i;
const uint32_t nfat_arch = data.GetU32(&data_offset); // number of structs that follow
const uint32_t fat_header_and_arch_size = sizeof(struct fat_header) + nfat_arch * sizeof(struct fat_arch);
if (data.GetByteSize() < fat_header_and_arch_size)
{
DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, fat_header_and_arch_size));
data.SetData (data_buffer_sp);
}
for (i=0; i<nfat_arch; i++)
{
cpu_type_t arch_cputype = data.GetU32(&data_offset); // cpu specifier (int)
cpu_subtype_t arch_cpusubtype = data.GetU32(&data_offset); // machine specifier (int)
uint32_t arch_offset = data.GetU32(&data_offset); // file offset to this object file
// uint32_t arch_size = data.GetU32(&data_offset); // size of this object file
// uint32_t arch_align = data.GetU32(&data_offset); // alignment as a power of 2
data_offset += 8; // Skip size and align as we don't need those
// Only process this slice if the cpu type/subtype matches
if (arch)
{
ArchSpec fat_arch(eArchTypeMachO, arch_cputype, arch_cpusubtype);
if (!fat_arch.IsExactMatch(*arch))
continue;
}
// Create a buffer with only the arch slice date in it
DataExtractor arch_data;
DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset + arch_offset, 0x1000));
arch_data.SetData(data_buffer_sp);
uint32_t arch_data_offset = 0;
uint32_t arch_magic = arch_data.GetU32(&arch_data_offset);
switch (arch_magic)
{
case HeaderMagic32:
case HeaderMagic32Swapped:
case HeaderMagic64:
case HeaderMagic64Swapped:
if (SkinnyMachOFileContainsArchAndUUID (file_spec, arch, uuid, file_offset + arch_offset, arch_data, arch_data_offset, arch_magic))
return true;
break;
}
}
return false;
}
void SourceManager::File::CommonInitializer(const FileSpec &file_spec,
Target *target) {
if (!m_mod_time.IsValid()) {
if (target) {
m_source_map_mod_id = target->GetSourcePathMap().GetModificationID();
if (!file_spec.GetDirectory() && file_spec.GetFilename()) {
// If this is just a file name, lets see if we can find it in the
// target:
bool check_inlines = false;
SymbolContextList sc_list;
size_t num_matches =
target->GetImages().ResolveSymbolContextForFilePath(
file_spec.GetFilename().AsCString(), 0, check_inlines,
lldb::eSymbolContextModule | lldb::eSymbolContextCompUnit,
sc_list);
bool got_multiple = false;
if (num_matches != 0) {
if (num_matches > 1) {
SymbolContext sc;
FileSpec *test_cu_spec = NULL;
for (unsigned i = 0; i < num_matches; i++) {
sc_list.GetContextAtIndex(i, sc);
if (sc.comp_unit) {
if (test_cu_spec) {
if (test_cu_spec != static_cast<FileSpec *>(sc.comp_unit))
got_multiple = true;
break;
} else
test_cu_spec = sc.comp_unit;
}
}
}
if (!got_multiple) {
SymbolContext sc;
sc_list.GetContextAtIndex(0, sc);
m_file_spec = sc.comp_unit;
m_mod_time = m_file_spec.GetModificationTime();
}
}
}
// Try remapping if m_file_spec does not correspond to an existing file.
if (!m_file_spec.Exists()) {
FileSpec new_file_spec;
// Check target specific source remappings first, then fall back to
// modules objects can have individual path remappings that were
// detected
// when the debug info for a module was found.
// then
if (target->GetSourcePathMap().FindFile(m_file_spec, new_file_spec) ||
target->GetImages().FindSourceFile(m_file_spec, new_file_spec)) {
m_file_spec = new_file_spec;
m_mod_time = m_file_spec.GetModificationTime();
}
}
}
}
if (m_mod_time.IsValid())
m_data_sp = m_file_spec.ReadFileContents();
}
bool
HostInfoBase::GetLLDBPath(lldb::PathType type, FileSpec &file_spec)
{
file_spec.Clear();
#if defined(LLDB_DISABLE_PYTHON)
if (type == lldb::ePathTypePythonDir)
return false;
#endif
FileSpec *result = nullptr;
switch (type)
{
case lldb::ePathTypeLLDBShlibDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeSharedLibraryDirectory (g_fields->m_lldb_so_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBShlibDir) => '%s'", g_fields->m_lldb_so_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_so_dir;
}
break;
case lldb::ePathTypeSupportExecutableDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeSupportExeDirectory (g_fields->m_lldb_support_exe_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeSupportExecutableDir) => '%s'",
g_fields->m_lldb_support_exe_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_support_exe_dir;
}
break;
case lldb::ePathTypeHeaderDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeHeaderDirectory (g_fields->m_lldb_headers_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeHeaderDir) => '%s'", g_fields->m_lldb_headers_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_headers_dir;
}
break;
case lldb::ePathTypePythonDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputePythonDirectory (g_fields->m_lldb_python_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypePythonDir) => '%s'", g_fields->m_lldb_python_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_python_dir;
}
break;
case lldb::ePathTypeClangDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeClangDirectory (g_fields->m_lldb_clang_resource_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeClangResourceDir) => '%s'", g_fields->m_lldb_clang_resource_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_clang_resource_dir;
}
break;
case lldb::ePathTypeLLDBSystemPlugins:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeSystemPluginsDirectory (g_fields->m_lldb_system_plugin_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBSystemPlugins) => '%s'",
g_fields->m_lldb_system_plugin_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_system_plugin_dir;
}
break;
case lldb::ePathTypeLLDBUserPlugins:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeUserPluginsDirectory (g_fields->m_lldb_user_plugin_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBUserPlugins) => '%s'",
g_fields->m_lldb_user_plugin_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_user_plugin_dir;
}
break;
case lldb::ePathTypeLLDBTempSystemDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeProcessTempFileDirectory (g_fields->m_lldb_process_tmp_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeLLDBTempSystemDir) => '%s'", g_fields->m_lldb_process_tmp_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_process_tmp_dir;
}
break;
case lldb::ePathTypeGlobalLLDBTempSystemDir:
{
static std::once_flag g_once_flag;
static bool success = false;
std::call_once(g_once_flag, []() {
success = HostInfo::ComputeGlobalTempFileDirectory (g_fields->m_lldb_global_tmp_dir);
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
if (log)
log->Printf("HostInfoBase::GetLLDBPath(ePathTypeGlobalLLDBTempSystemDir) => '%s'", g_fields->m_lldb_global_tmp_dir.GetPath().c_str());
});
if (success)
result = &g_fields->m_lldb_global_tmp_dir;
}
break;
}
if (!result)
return false;
file_spec = *result;
return true;
}
bool
Host::GetBundleDirectory (const FileSpec &file, FileSpec &bundle)
{
bundle.Clear();
return false;
}
Error
TargetList::CreateTarget
(
Debugger &debugger,
const FileSpec& file,
const ArchSpec& specified_arch,
bool get_dependent_files,
PlatformSP &platform_sp,
TargetSP &target_sp
)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"TargetList::CreateTarget (file = '%s/%s', arch = '%s')",
file.GetDirectory().AsCString(),
file.GetFilename().AsCString(),
specified_arch.GetArchitectureName());
Error error;
ArchSpec arch(specified_arch);
if (platform_sp)
{
if (arch.IsValid())
{
if (!platform_sp->IsCompatibleArchitecture(arch))
platform_sp = Platform::GetPlatformForArchitecture(specified_arch, &arch);
}
}
else if (arch.IsValid())
{
platform_sp = Platform::GetPlatformForArchitecture(specified_arch, &arch);
}
if (!platform_sp)
platform_sp = debugger.GetPlatformList().GetSelectedPlatform();
if (!arch.IsValid())
arch = specified_arch;
if (file)
{
ModuleSP exe_module_sp;
FileSpec resolved_file(file);
if (platform_sp)
{
FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
error = platform_sp->ResolveExecutable (file,
arch,
exe_module_sp,
executable_search_paths.GetSize() ? &executable_search_paths : NULL);
}
if (error.Success() && exe_module_sp)
{
if (exe_module_sp->GetObjectFile() == NULL)
{
if (arch.IsValid())
{
error.SetErrorStringWithFormat("\"%s%s%s\" doesn't contain architecture %s",
file.GetDirectory().AsCString(),
file.GetDirectory() ? "/" : "",
file.GetFilename().AsCString(),
arch.GetArchitectureName());
}
else
{
error.SetErrorStringWithFormat("unsupported file type \"%s%s%s\"",
file.GetDirectory().AsCString(),
file.GetDirectory() ? "/" : "",
file.GetFilename().AsCString());
}
return error;
}
target_sp.reset(new Target(debugger, arch, platform_sp));
target_sp->SetExecutableModule (exe_module_sp, get_dependent_files);
}
}
else
{
// No file was specified, just create an empty target with any arch
// if a valid arch was specified
target_sp.reset(new Target(debugger, arch, platform_sp));
}
if (target_sp)
{
target_sp->UpdateInstanceName();
Mutex::Locker locker(m_target_list_mutex);
m_selected_target_idx = m_target_list.size();
m_target_list.push_back(target_sp);
}
return error;
}
bool
FileSystem::GetFileExists(const FileSpec &file_spec)
{
return file_spec.Exists();
}
Error
ModuleList::GetSharedModule
(
const FileSpec& in_file_spec,
const ArchSpec& arch,
const lldb_private::UUID *uuid_ptr,
const ConstString *object_name_ptr,
off_t object_offset,
ModuleSP &module_sp,
ModuleSP *old_module_sp_ptr,
bool *did_create_ptr,
bool always_create
)
{
ModuleList &shared_module_list = GetSharedModuleList ();
Mutex::Locker locker(shared_module_list.m_modules_mutex);
char path[PATH_MAX];
char uuid_cstr[64];
Error error;
module_sp.reset();
if (did_create_ptr)
*did_create_ptr = false;
if (old_module_sp_ptr)
old_module_sp_ptr->reset();
// First just try and get the file where it purports to be (path in
// in_file_spec), then check and uuid.
if (in_file_spec)
{
// Make sure no one else can try and get or create a module while this
// function is actively working on it by doing an extra lock on the
// global mutex list.
if (always_create == false)
{
ModuleList matching_module_list;
const size_t num_matching_modules = shared_module_list.FindModules (&in_file_spec, &arch, NULL, object_name_ptr, matching_module_list);
if (num_matching_modules > 0)
{
for (uint32_t module_idx = 0; module_idx < num_matching_modules; ++module_idx)
{
module_sp = matching_module_list.GetModuleAtIndex(module_idx);
if (uuid_ptr && uuid_ptr->IsValid())
{
// We found the module we were looking for.
if (module_sp->GetUUID() == *uuid_ptr)
return error;
}
else
{
// If we didn't have a UUID in mind when looking for the object file,
// then we should make sure the modification time hasn't changed!
TimeValue file_spec_mod_time(in_file_spec.GetModificationTime());
if (file_spec_mod_time.IsValid())
{
if (file_spec_mod_time == module_sp->GetModificationTime())
return error;
}
}
if (old_module_sp_ptr && !old_module_sp_ptr->get())
*old_module_sp_ptr = module_sp;
shared_module_list.Remove (module_sp);
module_sp.reset();
}
}
}
if (module_sp)
return error;
else
{
#if defined ENABLE_MODULE_SP_LOGGING
ModuleSP logging_module_sp (new Module (in_file_spec, arch, object_name_ptr, object_offset), ModuleSharedPtrLogger, (void *)ConstString("a.out").GetCString());
module_sp = logging_module_sp;
#else
module_sp.reset (new Module (in_file_spec, arch, object_name_ptr, object_offset));
#endif
// Make sure there are a module and an object file since we can specify
// a valid file path with an architecture that might not be in that file.
// By getting the object file we can guarantee that the architecture matches
if (module_sp && module_sp->GetObjectFile())
{
// If we get in here we got the correct arch, now we just need
// to verify the UUID if one was given
if (uuid_ptr && *uuid_ptr != module_sp->GetUUID())
module_sp.reset();
else
{
if (did_create_ptr)
*did_create_ptr = true;
shared_module_list.Append(module_sp);
return error;
}
}
}
}
// Either the file didn't exist where at the path, or no path was given, so
// we now have to use more extreme measures to try and find the appropriate
// module.
// Fixup the incoming path in case the path points to a valid file, yet
// the arch or UUID (if one was passed in) don't match.
FileSpec file_spec = Symbols::LocateExecutableObjectFile (in_file_spec ? &in_file_spec : NULL,
arch.IsValid() ? &arch : NULL,
uuid_ptr);
// Don't look for the file if it appears to be the same one we already
// checked for above...
if (file_spec != in_file_spec)
{
if (!file_spec.Exists())
{
file_spec.GetPath(path, sizeof(path));
if (file_spec.Exists())
{
if (uuid_ptr && uuid_ptr->IsValid())
uuid_ptr->GetAsCString(uuid_cstr, sizeof (uuid_cstr));
else
uuid_cstr[0] = '\0';
if (arch.IsValid())
{
if (uuid_cstr[0])
error.SetErrorStringWithFormat("'%s' does not contain the %s architecture and UUID %s", path, arch.GetArchitectureName(), uuid_cstr);
else
error.SetErrorStringWithFormat("'%s' does not contain the %s architecture.", path, arch.GetArchitectureName());
}
}
else
{
error.SetErrorStringWithFormat("'%s' does not exist", path);
}
return error;
}
// Make sure no one else can try and get or create a module while this
// function is actively working on it by doing an extra lock on the
// global mutex list.
ModuleList matching_module_list;
if (shared_module_list.FindModules (&file_spec, &arch, uuid_ptr, object_name_ptr, matching_module_list) > 0)
{
module_sp = matching_module_list.GetModuleAtIndex(0);
// If we didn't have a UUID in mind when looking for the object file,
// then we should make sure the modification time hasn't changed!
if (uuid_ptr == NULL)
{
TimeValue file_spec_mod_time(file_spec.GetModificationTime());
if (file_spec_mod_time.IsValid())
{
if (file_spec_mod_time != module_sp->GetModificationTime())
{
if (old_module_sp_ptr)
*old_module_sp_ptr = module_sp;
shared_module_list.Remove (module_sp);
module_sp.reset();
}
}
}
}
if (module_sp.get() == NULL)
{
#if defined ENABLE_MODULE_SP_LOGGING
ModuleSP logging_module_sp (new Module (file_spec, arch, object_name_ptr, object_offset), ModuleSharedPtrLogger, 0);
module_sp = logging_module_sp;
#else
module_sp.reset (new Module (file_spec, arch, object_name_ptr, object_offset));
#endif
// Make sure there are a module and an object file since we can specify
// a valid file path with an architecture that might not be in that file.
// By getting the object file we can guarantee that the architecture matches
if (module_sp && module_sp->GetObjectFile())
{
if (did_create_ptr)
*did_create_ptr = true;
shared_module_list.Append(module_sp);
}
else
{
file_spec.GetPath(path, sizeof(path));
if (file_spec)
{
if (arch.IsValid())
error.SetErrorStringWithFormat("unable to open %s architecture in '%s'", arch.GetArchitectureName(), path);
else
error.SetErrorStringWithFormat("unable to open '%s'", path);
}
else
{
if (uuid_ptr && uuid_ptr->IsValid())
uuid_ptr->GetAsCString(uuid_cstr, sizeof (uuid_cstr));
else
uuid_cstr[0] = '\0';
if (uuid_cstr[0])
error.SetErrorStringWithFormat("cannot locate a module for UUID '%s'", uuid_cstr);
else
error.SetErrorStringWithFormat("cannot locate a module");
}
}
}
}
return error;
}
static bool
SkinnyMachOFileContainsArchAndUUID
(
const FileSpec &file_spec,
const ArchSpec *arch,
const lldb_private::UUID *uuid, // the UUID we are looking for
off_t file_offset,
DataExtractor& data,
lldb::offset_t data_offset,
const uint32_t magic
)
{
assert(magic == MH_MAGIC || magic == MH_CIGAM || magic == MH_MAGIC_64 || magic == MH_CIGAM_64);
if (magic == MH_MAGIC || magic == MH_MAGIC_64)
data.SetByteOrder (lldb::endian::InlHostByteOrder());
else if (lldb::endian::InlHostByteOrder() == eByteOrderBig)
data.SetByteOrder (eByteOrderLittle);
else
data.SetByteOrder (eByteOrderBig);
uint32_t i;
const uint32_t cputype = data.GetU32(&data_offset); // cpu specifier
const uint32_t cpusubtype = data.GetU32(&data_offset); // machine specifier
data_offset+=4; // Skip mach file type
const uint32_t ncmds = data.GetU32(&data_offset); // number of load commands
const uint32_t sizeofcmds = data.GetU32(&data_offset); // the size of all the load commands
data_offset+=4; // Skip flags
// Check the architecture if we have a valid arch pointer
if (arch)
{
ArchSpec file_arch(eArchTypeMachO, cputype, cpusubtype);
if (!file_arch.IsCompatibleMatch(*arch))
return false;
}
// The file exists, and if a valid arch pointer was passed in we know
// if already matches, so we can return if we aren't looking for a specific
// UUID
if (uuid == NULL)
return true;
if (magic == MH_CIGAM_64 || magic == MH_MAGIC_64)
data_offset += 4; // Skip reserved field for in mach_header_64
// Make sure we have enough data for all the load commands
if (magic == MH_CIGAM_64 || magic == MH_MAGIC_64)
{
if (data.GetByteSize() < sizeof(struct mach_header_64) + sizeofcmds)
{
DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, sizeof(struct mach_header_64) + sizeofcmds));
data.SetData (data_buffer_sp);
}
}
else
{
if (data.GetByteSize() < sizeof(struct mach_header) + sizeofcmds)
{
DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, sizeof(struct mach_header) + sizeofcmds));
data.SetData (data_buffer_sp);
}
}
for (i=0; i<ncmds; i++)
{
const lldb::offset_t cmd_offset = data_offset; // Save this data_offset in case parsing of the segment goes awry!
uint32_t cmd = data.GetU32(&data_offset);
uint32_t cmd_size = data.GetU32(&data_offset);
if (cmd == LC_UUID)
{
lldb_private::UUID file_uuid (data.GetData(&data_offset, 16), 16);
if (file_uuid == *uuid)
return true;
return false;
}
data_offset = cmd_offset + cmd_size;
}
return false;
}
lldb::user_id_t
FileSystem::GetFileSize(const FileSpec &file_spec)
{
return file_spec.GetByteSize();
}
Error
TargetList::CreateTarget
(
Debugger &debugger,
const FileSpec& file,
const ArchSpec& arch,
const UUID *uuid_ptr,
bool get_dependent_files,
TargetSP &target_sp
)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"TargetList::CreateTarget (file = '%s/%s', arch = '%s', uuid = %p)",
file.GetDirectory().AsCString(),
file.GetFilename().AsCString(),
arch.AsCString(),
uuid_ptr);
ModuleSP exe_module_sp;
FileSpec resolved_file(file);
if (!Host::ResolveExecutableInBundle (&resolved_file))
resolved_file = file;
Error error = ModuleList::GetSharedModule(resolved_file,
arch,
uuid_ptr,
NULL,
0,
exe_module_sp,
NULL,
NULL);
if (exe_module_sp)
{
target_sp.reset(new Target(debugger));
target_sp->SetExecutableModule (exe_module_sp, get_dependent_files);
if (target_sp.get())
{
Mutex::Locker locker(m_target_list_mutex);
m_current_target_idx = m_target_list.size();
m_target_list.push_back(target_sp);
}
// target_sp.reset(new Target);
// // Let the target resolve any funky bundle paths before we try and get
// // the object file...
// target_sp->SetExecutableModule (exe_module_sp, get_dependent_files);
// if (exe_module_sp->GetObjectFile() == NULL)
// {
// error.SetErrorStringWithFormat("%s%s%s: doesn't contain architecture %s",
// file.GetDirectory().AsCString(),
// file.GetDirectory() ? "/" : "",
// file.GetFilename().AsCString(),
// arch.AsCString());
// }
// else
// {
// if (target_sp.get())
// {
// error.Clear();
// Mutex::Locker locker(m_target_list_mutex);
// m_current_target_idx = m_target_list.size();
// m_target_list.push_back(target_sp);
// }
// }
}
else
{
target_sp.reset();
}
return error;
}
bool
StringList::ReadFileLines (FileSpec &input_file)
{
return input_file.ReadFileLines (m_strings);
}
Error
PlatformRemoteiOS::ResolveExecutable (const FileSpec &exe_file,
const ArchSpec &exe_arch,
lldb::ModuleSP &exe_module_sp,
const FileSpecList *module_search_paths_ptr)
{
Error error;
// Nothing special to do here, just use the actual file and architecture
FileSpec resolved_exe_file (exe_file);
// If we have "ls" as the exe_file, resolve the executable loation based on
// the current path variables
// TODO: resolve bare executables in the Platform SDK
// if (!resolved_exe_file.Exists())
// resolved_exe_file.ResolveExecutableLocation ();
// Resolve any executable within a bundle on MacOSX
// TODO: verify that this handles shallow bundles, if not then implement one ourselves
Host::ResolveExecutableInBundle (resolved_exe_file);
if (resolved_exe_file.Exists())
{
if (exe_arch.IsValid())
{
ModuleSpec module_spec (resolved_exe_file, exe_arch);
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
if (exe_module_sp && exe_module_sp->GetObjectFile())
return error;
exe_module_sp.reset();
}
// No valid architecture was specified or the exact ARM slice wasn't
// found so ask the platform for the architectures that we should be
// using (in the correct order) and see if we can find a match that way
StreamString arch_names;
ArchSpec platform_arch;
for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, platform_arch); ++idx)
{
ModuleSpec module_spec (resolved_exe_file, platform_arch);
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
// Did we find an executable using one of the
if (error.Success())
{
if (exe_module_sp && exe_module_sp->GetObjectFile())
break;
else
error.SetErrorToGenericError();
}
if (idx > 0)
arch_names.PutCString (", ");
arch_names.PutCString (platform_arch.GetArchitectureName());
}
if (error.Fail() || !exe_module_sp)
{
error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
exe_file.GetPath().c_str(),
GetPluginName().GetCString(),
arch_names.GetString().c_str());
}
}
else
{
error.SetErrorStringWithFormat ("'%s' does not exist",
exe_file.GetPath().c_str());
}
return error;
}
Error
PlatformWindows::ResolveExecutable (const FileSpec &exe_file,
const ArchSpec &exe_arch,
lldb::ModuleSP &exe_module_sp,
const FileSpecList *module_search_paths_ptr)
{
Error error;
// Nothing special to do here, just use the actual file and architecture
char exe_path[PATH_MAX];
FileSpec resolved_exe_file (exe_file);
if (IsHost())
{
// if we cant resolve the executable loation based on the current path variables
if (!resolved_exe_file.Exists())
{
exe_file.GetPath(exe_path, sizeof(exe_path));
resolved_exe_file.SetFile(exe_path, true);
}
if (!resolved_exe_file.Exists())
resolved_exe_file.ResolveExecutableLocation ();
if (resolved_exe_file.Exists())
error.Clear();
else
{
exe_file.GetPath(exe_path, sizeof(exe_path));
error.SetErrorStringWithFormat("unable to find executable for '%s'", exe_path);
}
}
else
{
if (m_remote_platform_sp)
{
error = m_remote_platform_sp->ResolveExecutable (exe_file,
exe_arch,
exe_module_sp,
NULL);
}
else
{
// We may connect to a process and use the provided executable (Don't use local $PATH).
if (resolved_exe_file.Exists())
error.Clear();
else
error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", exe_path);
}
}
if (error.Success())
{
ModuleSpec module_spec (resolved_exe_file, exe_arch);
if (exe_arch.IsValid())
{
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
if (!exe_module_sp && exe_module_sp->GetObjectFile() == NULL)
{
exe_module_sp.reset();
error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s",
exe_file.GetPath().c_str(),
exe_arch.GetArchitectureName());
}
}
else
{
// No valid architecture was specified, ask the platform for
// the architectures that we should be using (in the correct order)
// and see if we can find a match that way
StreamString arch_names;
for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx)
{
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
// Did we find an executable using one of the
if (error.Success())
{
if (exe_module_sp && exe_module_sp->GetObjectFile())
break;
else
error.SetErrorToGenericError();
}
if (idx > 0)
arch_names.PutCString (", ");
arch_names.PutCString (module_spec.GetArchitecture().GetArchitectureName());
}
if (error.Fail() || !exe_module_sp)
{
error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
exe_file.GetPath().c_str(),
GetPluginName().GetCString(),
arch_names.GetString().c_str());
}
}
}
return error;
}
bool
Host::GetLLDBPath (PathType path_type, FileSpec &file_spec)
{
// To get paths related to LLDB we get the path to the executable that
// contains this function. On MacOSX this will be "LLDB.framework/.../LLDB",
// on linux this is assumed to be the "lldb" main executable. If LLDB on
// linux is actually in a shared library (lldb.so??) then this function will
// need to be modified to "do the right thing".
switch (path_type)
{
case ePathTypeLLDBShlibDir:
{
static ConstString g_lldb_so_dir;
if (!g_lldb_so_dir)
{
FileSpec lldb_file_spec (Host::GetModuleFileSpecForHostAddress ((void *)Host::GetLLDBPath));
g_lldb_so_dir = lldb_file_spec.GetDirectory();
}
file_spec.GetDirectory() = g_lldb_so_dir;
return file_spec.GetDirectory();
}
break;
case ePathTypeSupportExecutableDir:
{
static ConstString g_lldb_support_exe_dir;
if (!g_lldb_support_exe_dir)
{
FileSpec lldb_file_spec;
if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec))
{
char raw_path[PATH_MAX];
char resolved_path[PATH_MAX];
lldb_file_spec.GetPath(raw_path, sizeof(raw_path));
#if defined (__APPLE__)
char *framework_pos = ::strstr (raw_path, "LLDB.framework");
if (framework_pos)
{
framework_pos += strlen("LLDB.framework");
#if !defined (__arm__)
::strncpy (framework_pos, "/Resources", PATH_MAX - (framework_pos - raw_path));
#endif
}
#endif
FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path));
g_lldb_support_exe_dir.SetCString(resolved_path);
}
}
file_spec.GetDirectory() = g_lldb_support_exe_dir;
return file_spec.GetDirectory();
}
break;
case ePathTypeHeaderDir:
{
static ConstString g_lldb_headers_dir;
if (!g_lldb_headers_dir)
{
#if defined (__APPLE__)
FileSpec lldb_file_spec;
if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec))
{
char raw_path[PATH_MAX];
char resolved_path[PATH_MAX];
lldb_file_spec.GetPath(raw_path, sizeof(raw_path));
char *framework_pos = ::strstr (raw_path, "LLDB.framework");
if (framework_pos)
{
framework_pos += strlen("LLDB.framework");
::strncpy (framework_pos, "/Headers", PATH_MAX - (framework_pos - raw_path));
}
FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path));
g_lldb_headers_dir.SetCString(resolved_path);
}
#else
// TODO: Anyone know how we can determine this for linux? Other systems??
g_lldb_headers_dir.SetCString ("/opt/local/include/lldb");
#endif
}
file_spec.GetDirectory() = g_lldb_headers_dir;
return file_spec.GetDirectory();
}
break;
case ePathTypePythonDir:
{
// TODO: Anyone know how we can determine this for linux? Other systems?
// For linux and FreeBSD we are currently assuming the
// location of the lldb binary that contains this function is
// the directory that will contain a python directory which
// has our lldb module. This is how files get placed when
// compiling with Makefiles.
static ConstString g_lldb_python_dir;
if (!g_lldb_python_dir)
{
FileSpec lldb_file_spec;
if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec))
{
char raw_path[PATH_MAX];
char resolved_path[PATH_MAX];
lldb_file_spec.GetPath(raw_path, sizeof(raw_path));
#if defined (__APPLE__)
char *framework_pos = ::strstr (raw_path, "LLDB.framework");
if (framework_pos)
{
framework_pos += strlen("LLDB.framework");
::strncpy (framework_pos, "/Resources/Python", PATH_MAX - (framework_pos - raw_path));
}
#else
// We may get our string truncated. Should we protect
// this with an assert?
::strncat(raw_path, "/python", sizeof(raw_path) - strlen(raw_path) - 1);
#endif
FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path));
g_lldb_python_dir.SetCString(resolved_path);
}
}
file_spec.GetDirectory() = g_lldb_python_dir;
return file_spec.GetDirectory();
}
break;
case ePathTypeLLDBSystemPlugins: // System plug-ins directory
{
#if defined (__APPLE__)
static ConstString g_lldb_system_plugin_dir;
static bool g_lldb_system_plugin_dir_located = false;
if (!g_lldb_system_plugin_dir_located)
{
g_lldb_system_plugin_dir_located = true;
FileSpec lldb_file_spec;
if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec))
{
char raw_path[PATH_MAX];
char resolved_path[PATH_MAX];
lldb_file_spec.GetPath(raw_path, sizeof(raw_path));
char *framework_pos = ::strstr (raw_path, "LLDB.framework");
if (framework_pos)
{
framework_pos += strlen("LLDB.framework");
::strncpy (framework_pos, "/Resources/PlugIns", PATH_MAX - (framework_pos - raw_path));
FileSpec::Resolve (raw_path, resolved_path, sizeof(resolved_path));
g_lldb_system_plugin_dir.SetCString(resolved_path);
}
return false;
}
}
if (g_lldb_system_plugin_dir)
{
file_spec.GetDirectory() = g_lldb_system_plugin_dir;
return true;
}
#endif
// TODO: where would system LLDB plug-ins be located on linux? Other systems?
return false;
}
break;
case ePathTypeLLDBUserPlugins: // User plug-ins directory
{
#if defined (__APPLE__)
static ConstString g_lldb_user_plugin_dir;
if (!g_lldb_user_plugin_dir)
{
char user_plugin_path[PATH_MAX];
if (FileSpec::Resolve ("~/Library/Application Support/LLDB/PlugIns",
user_plugin_path,
sizeof(user_plugin_path)))
{
g_lldb_user_plugin_dir.SetCString(user_plugin_path);
}
}
file_spec.GetDirectory() = g_lldb_user_plugin_dir;
return file_spec.GetDirectory();
#endif
// TODO: where would user LLDB plug-ins be located on linux? Other systems?
return false;
}
default:
assert (!"Unhandled PathType");
break;
}
return false;
}
Error
TargetList::CreateTargetInternal (Debugger &debugger,
const char *user_exe_path,
const ArchSpec& specified_arch,
bool get_dependent_files,
lldb::PlatformSP &platform_sp,
lldb::TargetSP &target_sp,
bool is_dummy_target)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"TargetList::CreateTarget (file = '%s', arch = '%s')",
user_exe_path,
specified_arch.GetArchitectureName());
Error error;
ArchSpec arch(specified_arch);
if (arch.IsValid())
{
if (!platform_sp || !platform_sp->IsCompatibleArchitecture(arch, false, NULL))
platform_sp = Platform::GetPlatformForArchitecture(specified_arch, &arch);
}
if (!platform_sp)
platform_sp = debugger.GetPlatformList().GetSelectedPlatform();
if (!arch.IsValid())
arch = specified_arch;
FileSpec file (user_exe_path, false);
if (!file.Exists() && user_exe_path && user_exe_path[0] == '~')
{
// we want to expand the tilde but we don't want to resolve any symbolic links
// so we can't use the FileSpec constructor's resolve flag
llvm::SmallString<64> unglobbed_path(user_exe_path);
FileSpec::ResolveUsername(unglobbed_path);
if (unglobbed_path.empty())
file = FileSpec(user_exe_path, false);
else
file = FileSpec(unglobbed_path.c_str(), false);
}
bool user_exe_path_is_bundle = false;
char resolved_bundle_exe_path[PATH_MAX];
resolved_bundle_exe_path[0] = '\0';
if (file)
{
if (file.GetFileType() == FileSpec::eFileTypeDirectory)
user_exe_path_is_bundle = true;
if (file.IsRelativeToCurrentWorkingDirectory() && user_exe_path)
{
// Ignore paths that start with "./" and "../"
if (!((user_exe_path[0] == '.' && user_exe_path[1] == '/') ||
(user_exe_path[0] == '.' && user_exe_path[1] == '.' && user_exe_path[2] == '/')))
{
char cwd[PATH_MAX];
if (getcwd (cwd, sizeof(cwd)))
{
std::string cwd_user_exe_path (cwd);
cwd_user_exe_path += '/';
cwd_user_exe_path += user_exe_path;
FileSpec cwd_file (cwd_user_exe_path.c_str(), false);
if (cwd_file.Exists())
file = cwd_file;
}
}
}
ModuleSP exe_module_sp;
if (platform_sp)
{
FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
ModuleSpec module_spec(file, arch);
error = platform_sp->ResolveExecutable (module_spec,
exe_module_sp,
executable_search_paths.GetSize() ? &executable_search_paths : NULL);
}
if (error.Success() && exe_module_sp)
{
if (exe_module_sp->GetObjectFile() == NULL)
{
if (arch.IsValid())
{
error.SetErrorStringWithFormat("\"%s\" doesn't contain architecture %s",
file.GetPath().c_str(),
arch.GetArchitectureName());
}
else
{
error.SetErrorStringWithFormat("unsupported file type \"%s\"",
file.GetPath().c_str());
}
return error;
}
target_sp.reset(new Target(debugger, arch, platform_sp, is_dummy_target));
target_sp->SetExecutableModule (exe_module_sp, get_dependent_files);
if (user_exe_path_is_bundle)
exe_module_sp->GetFileSpec().GetPath(resolved_bundle_exe_path, sizeof(resolved_bundle_exe_path));
}
}
else
{
// No file was specified, just create an empty target with any arch
// if a valid arch was specified
target_sp.reset(new Target(debugger, arch, platform_sp, is_dummy_target));
}
if (target_sp)
{
// Set argv0 with what the user typed, unless the user specified a
// directory. If the user specified a directory, then it is probably a
// bundle that was resolved and we need to use the resolved bundle path
if (user_exe_path)
{
// Use exactly what the user typed as the first argument when we exec or posix_spawn
if (user_exe_path_is_bundle && resolved_bundle_exe_path[0])
{
target_sp->SetArg0 (resolved_bundle_exe_path);
}
else
{
// Use resolved path
target_sp->SetArg0 (file.GetPath().c_str());
}
}
if (file.GetDirectory())
{
FileSpec file_dir;
file_dir.GetDirectory() = file.GetDirectory();
target_sp->GetExecutableSearchPaths ().Append (file_dir);
}
// Don't put the dummy target in the target list, it's held separately.
if (!is_dummy_target)
{
Mutex::Locker locker(m_target_list_mutex);
m_selected_target_idx = m_target_list.size();
m_target_list.push_back(target_sp);
// Now prime this from the dummy target:
target_sp->PrimeFromDummyTarget(debugger.GetDummyTarget());
}
else
{
m_dummy_target_sp = target_sp;
}
}
return error;
}
uint32_t
CompileUnit::ResolveSymbolContext
(
const FileSpec& file_spec,
uint32_t line,
bool check_inlines,
bool exact,
uint32_t resolve_scope,
SymbolContextList &sc_list
)
{
// First find all of the file indexes that match our "file_spec". If
// "file_spec" has an empty directory, then only compare the basenames
// when finding file indexes
std::vector<uint32_t> file_indexes;
const bool full_match = (bool)file_spec.GetDirectory();
const bool remove_backup_dots = true;
bool file_spec_matches_cu_file_spec = FileSpec::Equal(file_spec, *this, full_match, remove_backup_dots);
// If we are not looking for inlined functions and our file spec doesn't
// match then we are done...
if (file_spec_matches_cu_file_spec == false && check_inlines == false)
return 0;
uint32_t file_idx = GetSupportFiles().FindFileIndex (1, file_spec, true, remove_backup_dots);
while (file_idx != UINT32_MAX)
{
file_indexes.push_back (file_idx);
file_idx = GetSupportFiles().FindFileIndex (file_idx + 1, file_spec, true, remove_backup_dots);
}
const size_t num_file_indexes = file_indexes.size();
if (num_file_indexes == 0)
return 0;
const uint32_t prev_size = sc_list.GetSize();
SymbolContext sc(GetModule());
sc.comp_unit = this;
if (line != 0)
{
LineTable *line_table = sc.comp_unit->GetLineTable();
if (line_table != nullptr)
{
uint32_t found_line;
uint32_t line_idx;
if (num_file_indexes == 1)
{
// We only have a single support file that matches, so use
// the line table function that searches for a line entries
// that match a single support file index
LineEntry line_entry;
line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_indexes.front(), line, exact, &line_entry);
// If "exact == true", then "found_line" will be the same
// as "line". If "exact == false", the "found_line" will be the
// closest line entry with a line number greater than "line" and
// we will use this for our subsequent line exact matches below.
found_line = line_entry.line;
while (line_idx != UINT32_MAX)
{
// If they only asked for the line entry, then we're done, we can just copy that over.
// But if they wanted more than just the line number, fill it in.
if (resolve_scope == eSymbolContextLineEntry)
{
sc.line_entry = line_entry;
}
else
{
line_entry.range.GetBaseAddress().CalculateSymbolContext(&sc, resolve_scope);
}
sc_list.Append(sc);
line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_indexes.front(), found_line, true, &line_entry);
}
}
else
{
// We found multiple support files that match "file_spec" so use
// the line table function that searches for a line entries
// that match a multiple support file indexes.
LineEntry line_entry;
line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_indexes, line, exact, &line_entry);
// If "exact == true", then "found_line" will be the same
// as "line". If "exact == false", the "found_line" will be the
// closest line entry with a line number greater than "line" and
// we will use this for our subsequent line exact matches below.
found_line = line_entry.line;
while (line_idx != UINT32_MAX)
{
if (resolve_scope == eSymbolContextLineEntry)
{
sc.line_entry = line_entry;
}
else
{
line_entry.range.GetBaseAddress().CalculateSymbolContext(&sc, resolve_scope);
}
sc_list.Append(sc);
line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_indexes, found_line, true, &line_entry);
}
}
}
}
else if (file_spec_matches_cu_file_spec && !check_inlines)
{
// only append the context if we aren't looking for inline call sites
// by file and line and if the file spec matches that of the compile unit
sc_list.Append(sc);
}
return sc_list.GetSize() - prev_size;
}
Error
PlatformRemoteiOS::GetSymbolFile (const FileSpec &platform_file,
const UUID *uuid_ptr,
FileSpec &local_file)
{
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
Error error;
char platform_file_path[PATH_MAX];
if (platform_file.GetPath(platform_file_path, sizeof(platform_file_path)))
{
char resolved_path[PATH_MAX];
const char * os_version_dir = GetDeviceSupportDirectoryForOSVersion();
if (os_version_dir)
{
::snprintf (resolved_path,
sizeof(resolved_path),
"%s/%s",
os_version_dir,
platform_file_path);
local_file.SetFile(resolved_path, true);
if (local_file.Exists())
{
if (log)
{
log->Printf ("Found a copy of %s in the DeviceSupport dir %s", platform_file_path, os_version_dir);
}
return error;
}
::snprintf (resolved_path,
sizeof(resolved_path),
"%s/Symbols.Internal/%s",
os_version_dir,
platform_file_path);
local_file.SetFile(resolved_path, true);
if (local_file.Exists())
{
if (log)
{
log->Printf ("Found a copy of %s in the DeviceSupport dir %s/Symbols.Internal", platform_file_path, os_version_dir);
}
return error;
}
::snprintf (resolved_path,
sizeof(resolved_path),
"%s/Symbols/%s",
os_version_dir,
platform_file_path);
local_file.SetFile(resolved_path, true);
if (local_file.Exists())
{
if (log)
{
log->Printf ("Found a copy of %s in the DeviceSupport dir %s/Symbols", platform_file_path, os_version_dir);
}
return error;
}
}
local_file = platform_file;
if (local_file.Exists())
return error;
error.SetErrorStringWithFormat ("unable to locate a platform file for '%s' in platform '%s'",
platform_file_path,
GetPluginName().GetCString());
}
else
{
error.SetErrorString ("invalid platform file argument");
}
return error;
}
ConstString
PlatformMacOSX::GetSDKDirectory (lldb_private::Target &target)
{
ModuleSP exe_module_sp (target.GetExecutableModule());
if (exe_module_sp)
{
ObjectFile *objfile = exe_module_sp->GetObjectFile();
if (objfile)
{
std::string xcode_contents_path;
std::string default_xcode_sdk;
FileSpec fspec;
uint32_t versions[2];
if (objfile->GetSDKVersion(versions, sizeof(versions)))
{
if (HostInfo::GetLLDBPath(ePathTypeLLDBShlibDir, fspec))
{
std::string path;
xcode_contents_path = fspec.GetPath();
size_t pos = xcode_contents_path.find("/Xcode.app/Contents/");
if (pos != std::string::npos)
{
// LLDB.framework is inside an Xcode app bundle, we can locate the SDK from here
xcode_contents_path.erase(pos + strlen("/Xcode.app/Contents/"));
}
else
{
xcode_contents_path.clear();
// Use the selected Xcode
int status = 0;
int signo = 0;
std::string output;
const char *command = "xcrun -sdk macosx --show-sdk-path";
lldb_private::Error error = RunShellCommand (command, // shell command to run
NULL, // current working directory
&status, // Put the exit status of the process in here
&signo, // Put the signal that caused the process to exit in here
&output, // Get the output from the command and place it in this string
3); // Timeout in seconds to wait for shell program to finish
if (status == 0 && !output.empty())
{
size_t first_non_newline = output.find_last_not_of("\r\n");
if (first_non_newline != std::string::npos)
output.erase(first_non_newline+1);
default_xcode_sdk = output;
pos = default_xcode_sdk.find("/Xcode.app/Contents/");
if (pos != std::string::npos)
xcode_contents_path = default_xcode_sdk.substr(0, pos + strlen("/Xcode.app/Contents/"));
}
}
}
if (!xcode_contents_path.empty())
{
StreamString sdk_path;
sdk_path.Printf("%sDeveloper/Platforms/MacOSX.platform/Developer/SDKs/MacOSX%u.%u.sdk", xcode_contents_path.c_str(), versions[0], versions[1]);
fspec.SetFile(sdk_path.GetString().c_str(), false);
if (fspec.Exists())
return ConstString(sdk_path.GetString().c_str());
}
if (!default_xcode_sdk.empty())
{
fspec.SetFile(default_xcode_sdk.c_str(), false);
if (fspec.Exists())
return ConstString(default_xcode_sdk.c_str());
}
}
}
}
return ConstString();
}
Error
TargetList::CreateTarget (Debugger &debugger,
const FileSpec& file,
const char *triple_cstr,
bool get_dependent_files,
const OptionGroupPlatform *platform_options,
TargetSP &target_sp)
{
Error error;
PlatformSP platform_sp;
// This is purposely left empty unless it is specified by triple_cstr.
// If not initialized via triple_cstr, then the currently selected platform
// will set the architecture correctly.
const ArchSpec arch(triple_cstr);
if (triple_cstr && triple_cstr[0])
{
if (!arch.IsValid())
{
error.SetErrorStringWithFormat("invalid triple '%s'", triple_cstr);
return error;
}
}
ArchSpec platform_arch(arch);
CommandInterpreter &interpreter = debugger.GetCommandInterpreter();
if (platform_options)
{
if (platform_options->PlatformWasSpecified ())
{
const bool select_platform = true;
platform_sp = platform_options->CreatePlatformWithOptions (interpreter,
arch,
select_platform,
error,
platform_arch);
if (!platform_sp)
return error;
}
}
if (!platform_sp)
{
// Get the current platform and make sure it is compatible with the
// current architecture if we have a valid architecture.
platform_sp = debugger.GetPlatformList().GetSelectedPlatform ();
if (arch.IsValid() && !platform_sp->IsCompatibleArchitecture(arch, &platform_arch))
{
platform_sp = Platform::GetPlatformForArchitecture(arch, &platform_arch);
}
}
if (!platform_arch.IsValid())
platform_arch = arch;
error = TargetList::CreateTarget (debugger,
file,
platform_arch,
get_dependent_files,
platform_sp,
target_sp);
if (target_sp)
{
if (file.GetDirectory())
{
FileSpec file_dir;
file_dir.GetDirectory() = file.GetDirectory();
target_sp->GetExecutableSearchPaths ().Append (file_dir);
}
}
return error;
}
bool SearchFilterByModule::ModulePasses(const FileSpec &spec) {
// Do a full match only if "spec" has a directory
const bool full_match = (bool)spec.GetDirectory();
return FileSpec::Equal(spec, m_module_spec, full_match);
}
Error
PlatformLinux::ResolveExecutable (const FileSpec &exe_file,
const ArchSpec &exe_arch,
lldb::ModuleSP &exe_module_sp,
const FileSpecList *module_search_paths_ptr)
{
Error error;
// Nothing special to do here, just use the actual file and architecture
char exe_path[PATH_MAX];
FileSpec resolved_exe_file (exe_file);
if (IsHost())
{
// If we have "ls" as the exe_file, resolve the executable location based on
// the current path variables
if (!resolved_exe_file.Exists())
{
exe_file.GetPath(exe_path, sizeof(exe_path));
resolved_exe_file.SetFile(exe_path, true);
}
if (!resolved_exe_file.Exists())
resolved_exe_file.ResolveExecutableLocation ();
if (resolved_exe_file.Exists())
error.Clear();
else
{
exe_file.GetPath(exe_path, sizeof(exe_path));
error.SetErrorStringWithFormat("unable to find executable for '%s'", exe_path);
}
}
else
{
if (m_remote_platform_sp)
{
error = m_remote_platform_sp->ResolveExecutable (exe_file,
exe_arch,
exe_module_sp,
NULL);
}
else
{
// We may connect to a process and use the provided executable (Don't use local $PATH).
if (resolved_exe_file.Exists())
error.Clear();
else
error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", exe_path);
}
}
if (error.Success())
{
ModuleSpec module_spec (resolved_exe_file, exe_arch);
if (exe_arch.IsValid())
{
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
if (error.Fail())
{
// If we failed, it may be because the vendor and os aren't known. If that is the
// case, try setting them to the host architecture and give it another try.
llvm::Triple &module_triple = module_spec.GetArchitecture().GetTriple();
bool is_vendor_specified = (module_triple.getVendor() != llvm::Triple::UnknownVendor);
bool is_os_specified = (module_triple.getOS() != llvm::Triple::UnknownOS);
if (!is_vendor_specified || !is_os_specified)
{
const llvm::Triple &host_triple = Host::GetArchitecture (Host::eSystemDefaultArchitecture).GetTriple();
if (!is_vendor_specified)
module_triple.setVendorName (host_triple.getVendorName());
if (!is_os_specified)
module_triple.setOSName (host_triple.getOSName());
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
}
}
// TODO find out why exe_module_sp might be NULL
if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL)
{
exe_module_sp.reset();
error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s",
exe_file.GetPath().c_str(),
exe_arch.GetArchitectureName());
}
}
else
{
// No valid architecture was specified, ask the platform for
// the architectures that we should be using (in the correct order)
// and see if we can find a match that way
StreamString arch_names;
for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx)
{
error = ModuleList::GetSharedModule (module_spec,
exe_module_sp,
NULL,
NULL,
NULL);
// Did we find an executable using one of the
if (error.Success())
{
if (exe_module_sp && exe_module_sp->GetObjectFile())
break;
else
error.SetErrorToGenericError();
}
if (idx > 0)
arch_names.PutCString (", ");
arch_names.PutCString (module_spec.GetArchitecture().GetArchitectureName());
}
if (error.Fail() || !exe_module_sp)
{
error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
exe_file.GetPath().c_str(),
GetPluginName().GetCString(),
arch_names.GetString().c_str());
}
}
}
return error;
}
bool HostInfoPosix::ComputeHeaderDirectory(FileSpec &file_spec) {
FileSpec temp_file("/opt/local/include/lldb", false);
file_spec.GetDirectory().SetCString(temp_file.GetPath().c_str());
return true;
}
Error
GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
uint16_t in_port,
ProcessLaunchInfo &launch_info,
uint16_t &out_port)
{
Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_PROCESS));
if (log)
log->Printf ("GDBRemoteCommunication::%s(hostname=%s, in_port=%" PRIu16 ", out_port=%" PRIu16, __FUNCTION__, hostname ? hostname : "<empty>", in_port, out_port);
out_port = in_port;
Error error;
// If we locate debugserver, keep that located version around
static FileSpec g_debugserver_file_spec;
char debugserver_path[PATH_MAX];
FileSpec &debugserver_file_spec = launch_info.GetExecutableFile();
// Always check to see if we have an environment override for the path
// to the debugserver to use and use it if we do.
const char *env_debugserver_path = getenv("LLDB_DEBUGSERVER_PATH");
if (env_debugserver_path)
{
debugserver_file_spec.SetFile (env_debugserver_path, false);
if (log)
log->Printf ("GDBRemoteCommunication::%s() gdb-remote stub exe path set from environment variable: %s", __FUNCTION__, env_debugserver_path);
}
else
debugserver_file_spec = g_debugserver_file_spec;
bool debugserver_exists = debugserver_file_spec.Exists();
if (!debugserver_exists)
{
// The debugserver binary is in the LLDB.framework/Resources
// directory.
if (HostInfo::GetLLDBPath(ePathTypeSupportExecutableDir, debugserver_file_spec))
{
debugserver_file_spec.AppendPathComponent (DEBUGSERVER_BASENAME);
debugserver_exists = debugserver_file_spec.Exists();
if (debugserver_exists)
{
if (log)
log->Printf ("GDBRemoteCommunication::%s() found gdb-remote stub exe '%s'", __FUNCTION__, debugserver_file_spec.GetPath ().c_str ());
g_debugserver_file_spec = debugserver_file_spec;
}
else
{
if (log)
log->Printf ("GDBRemoteCommunication::%s() could not find gdb-remote stub exe '%s'", __FUNCTION__, debugserver_file_spec.GetPath ().c_str ());
g_debugserver_file_spec.Clear();
debugserver_file_spec.Clear();
}
}
}
if (debugserver_exists)
{
debugserver_file_spec.GetPath (debugserver_path, sizeof(debugserver_path));
Args &debugserver_args = launch_info.GetArguments();
debugserver_args.Clear();
char arg_cstr[PATH_MAX];
// Start args with "debugserver /file/path -r --"
debugserver_args.AppendArgument(debugserver_path);
#if !defined(__APPLE__)
// First argument to lldb-server must be mode in which to run.
debugserver_args.AppendArgument("gdbserver");
#endif
// If a host and port is supplied then use it
char host_and_port[128];
if (hostname)
{
snprintf (host_and_port, sizeof(host_and_port), "%s:%u", hostname, in_port);
debugserver_args.AppendArgument(host_and_port);
}
else
{
host_and_port[0] = '\0';
}
// use native registers, not the GDB registers
debugserver_args.AppendArgument("--native-regs");
if (launch_info.GetLaunchInSeparateProcessGroup())
{
debugserver_args.AppendArgument("--setsid");
}
llvm::SmallString<PATH_MAX> named_pipe_path;
Pipe port_pipe;
bool listen = false;
if (host_and_port[0])
{
// Create a temporary file to get the stdout/stderr and redirect the
// output of the command into this file. We will later read this file
// if all goes well and fill the data into "command_output_ptr"
if (in_port == 0)
{
// Binding to port zero, we need to figure out what port it ends up
// using using a named pipe...
error = port_pipe.CreateWithUniqueName("debugserver-named-pipe", false, named_pipe_path);
if (error.Success())
{
debugserver_args.AppendArgument("--named-pipe");
debugserver_args.AppendArgument(named_pipe_path.c_str());
}
else
{
if (log)
log->Printf("GDBRemoteCommunication::%s() "
"named pipe creation failed: %s",
__FUNCTION__, error.AsCString());
// let's try an unnamed pipe
error = port_pipe.CreateNew(true);
if (error.Fail())
{
if (log)
log->Printf("GDBRemoteCommunication::%s() "
"unnamed pipe creation failed: %s",
__FUNCTION__, error.AsCString());
return error;
}
int write_fd = port_pipe.GetWriteFileDescriptor();
debugserver_args.AppendArgument("--pipe");
debugserver_args.AppendArgument(std::to_string(write_fd).c_str());
launch_info.AppendCloseFileAction(port_pipe.GetReadFileDescriptor());
}
}
else
{
listen = true;
}
}
else
{
// No host and port given, so lets listen on our end and make the debugserver
// connect to us..
error = StartListenThread ("127.0.0.1", 0);
if (error.Fail())
return error;
ConnectionFileDescriptor *connection = (ConnectionFileDescriptor *)GetConnection ();
// Wait for 10 seconds to resolve the bound port
out_port = connection->GetListeningPort(10);
if (out_port > 0)
{
char port_cstr[32];
snprintf(port_cstr, sizeof(port_cstr), "127.0.0.1:%i", out_port);
// Send the host and port down that debugserver and specify an option
// so that it connects back to the port we are listening to in this process
debugserver_args.AppendArgument("--reverse-connect");
debugserver_args.AppendArgument(port_cstr);
}
else
{
error.SetErrorString ("failed to bind to port 0 on 127.0.0.1");
return error;
}
}
const char *env_debugserver_log_file = getenv("LLDB_DEBUGSERVER_LOG_FILE");
if (env_debugserver_log_file)
{
::snprintf (arg_cstr, sizeof(arg_cstr), "--log-file=%s", env_debugserver_log_file);
debugserver_args.AppendArgument(arg_cstr);
}
const char *env_debugserver_log_flags = getenv("LLDB_DEBUGSERVER_LOG_FLAGS");
if (env_debugserver_log_flags)
{
::snprintf (arg_cstr, sizeof(arg_cstr), "--log-flags=%s", env_debugserver_log_flags);
debugserver_args.AppendArgument(arg_cstr);
}
// Add additional args, starting with LLDB_DEBUGSERVER_EXTRA_ARG_1 until an env var doesn't come back.
uint32_t env_var_index = 1;
bool has_env_var;
do
{
char env_var_name[64];
snprintf (env_var_name, sizeof (env_var_name), "LLDB_DEBUGSERVER_EXTRA_ARG_%" PRIu32, env_var_index++);
const char *extra_arg = getenv(env_var_name);
has_env_var = extra_arg != nullptr;
if (has_env_var)
{
debugserver_args.AppendArgument (extra_arg);
if (log)
log->Printf ("GDBRemoteCommunication::%s adding env var %s contents to stub command line (%s)", __FUNCTION__, env_var_name, extra_arg);
}
} while (has_env_var);
// Close STDIN, STDOUT and STDERR.
launch_info.AppendCloseFileAction (STDIN_FILENO);
launch_info.AppendCloseFileAction (STDOUT_FILENO);
launch_info.AppendCloseFileAction (STDERR_FILENO);
// Redirect STDIN, STDOUT and STDERR to "/dev/null".
launch_info.AppendSuppressFileAction (STDIN_FILENO, true, false);
launch_info.AppendSuppressFileAction (STDOUT_FILENO, false, true);
launch_info.AppendSuppressFileAction (STDERR_FILENO, false, true);
error = Host::LaunchProcess(launch_info);
if (error.Success() && launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID)
{
if (named_pipe_path.size() > 0)
{
error = port_pipe.OpenAsReader(named_pipe_path, false);
if (error.Fail())
if (log)
log->Printf("GDBRemoteCommunication::%s() "
"failed to open named pipe %s for reading: %s",
__FUNCTION__, named_pipe_path.c_str(), error.AsCString());
}
if (port_pipe.CanWrite())
port_pipe.CloseWriteFileDescriptor();
if (port_pipe.CanRead())
{
char port_cstr[256];
port_cstr[0] = '\0';
size_t num_bytes = sizeof(port_cstr);
// Read port from pipe with 10 second timeout.
error = port_pipe.ReadWithTimeout(port_cstr, num_bytes,
std::chrono::seconds{10}, num_bytes);
if (error.Success())
{
assert(num_bytes > 0 && port_cstr[num_bytes-1] == '\0');
out_port = StringConvert::ToUInt32(port_cstr, 0);
if (log)
log->Printf("GDBRemoteCommunication::%s() "
"debugserver listens %u port",
__FUNCTION__, out_port);
}
else
{
if (log)
log->Printf("GDBRemoteCommunication::%s() "
"failed to read a port value from pipe %s: %s",
__FUNCTION__, named_pipe_path.c_str(), error.AsCString());
}
port_pipe.Close();
}
if (named_pipe_path.size() > 0)
{
const auto err = port_pipe.Delete(named_pipe_path);
if (err.Fail())
{
if (log)
log->Printf ("GDBRemoteCommunication::%s failed to delete pipe %s: %s",
__FUNCTION__, named_pipe_path.c_str(), err.AsCString());
}
}
// Make sure we actually connect with the debugserver...
JoinListenThread();
}
}
else
{
error.SetErrorStringWithFormat ("unable to locate " DEBUGSERVER_BASENAME );
}
return error;
}
GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerCommon::Handle_qModuleInfo (StringExtractorGDBRemote &packet)
{
packet.SetFilePos(::strlen ("qModuleInfo:"));
std::string module_path;
packet.GetHexByteStringTerminatedBy(module_path, ';');
if (module_path.empty())
return SendErrorResponse (1);
if (packet.GetChar() != ';')
return SendErrorResponse (2);
std::string triple;
packet.GetHexByteString(triple);
ArchSpec arch(triple.c_str());
const FileSpec req_module_path_spec(module_path.c_str(), true);
const FileSpec module_path_spec = FindModuleFile(req_module_path_spec.GetPath(), arch);
const ModuleSpec module_spec(module_path_spec, arch);
ModuleSpecList module_specs;
if (!ObjectFile::GetModuleSpecifications(module_path_spec, 0, 0, module_specs))
return SendErrorResponse (3);
ModuleSpec matched_module_spec;
if (!module_specs.FindMatchingModuleSpec(module_spec, matched_module_spec))
return SendErrorResponse (4);
const auto file_offset = matched_module_spec.GetObjectOffset();
const auto file_size = matched_module_spec.GetObjectSize();
const auto uuid_str = matched_module_spec.GetUUID().GetAsString("");
StreamGDBRemote response;
if (uuid_str.empty())
{
std::string md5_hash;
if (!FileSystem::CalculateMD5AsString(matched_module_spec.GetFileSpec(), file_offset, file_size, md5_hash))
return SendErrorResponse (5);
response.PutCString ("md5:");
response.PutCStringAsRawHex8(md5_hash.c_str());
}
else{
response.PutCString ("uuid:");
response.PutCStringAsRawHex8(uuid_str.c_str());
}
response.PutChar(';');
const auto &module_arch = matched_module_spec.GetArchitecture();
response.PutCString("triple:");
response.PutCStringAsRawHex8( module_arch.GetTriple().getTriple().c_str());
response.PutChar(';');
response.PutCString("file_path:");
response.PutCStringAsRawHex8(module_path_spec.GetCString());
response.PutChar(';');
response.PutCString("file_offset:");
response.PutHex64(file_offset);
response.PutChar(';');
response.PutCString("file_size:");
response.PutHex64(file_size);
response.PutChar(';');
return SendPacketNoLock(response.GetData(), response.GetSize());
}
