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clang-p2996/lldb/source/Plugins/Platform/MacOSX/PlatformRemoteiOS.cpp
Greg Clayton 7260f6206f Centralized a lot of the status information for processes, 
threads, and stack frame down in the lldb_private::Process,
lldb_private::Thread, lldb_private::StackFrameList and the 
lldb_private::StackFrame classes. We had some command line
commands that had duplicate versions of the process status
output ("thread list" and "process status" for example). 

Removed the "file" command and placed it where it should
have been: "target create". Made an alias for "file" to
"target create" so we stay compatible with GDB commands.

We can now have multple usable targets in lldb at the
same time. This is nice for comparing two runs of a program
or debugging more than one binary at the same time. The
new command is "target select <target-idx>" and also to see
a list of the current targets you can use the new "target list"
command. The flow in a debug session can be:

(lldb) target create /path/to/exe/a.out
(lldb) breakpoint set --name main
(lldb) run
... hit breakpoint
(lldb) target create /bin/ls
(lldb) run /tmp
Process 36001 exited with status = 0 (0x00000000) 
(lldb) target list
Current targets:
  target #0: /tmp/args/a.out ( arch=x86_64-apple-darwin, platform=localhost, pid=35999, state=stopped )
* target #1: /bin/ls ( arch=x86_64-apple-darwin, platform=localhost, pid=36001, state=exited )
(lldb) target select 0
Current targets:
* target #0: /tmp/args/a.out ( arch=x86_64-apple-darwin, platform=localhost, pid=35999, state=stopped )
  target #1: /bin/ls ( arch=x86_64-apple-darwin, platform=localhost, pid=36001, state=exited )
(lldb) bt
* thread #1: tid = 0x2d03, 0x0000000100000b9a a.out`main + 42 at main.c:16, stop reason = breakpoint 1.1
  frame #0: 0x0000000100000b9a a.out`main + 42 at main.c:16
  frame #1: 0x0000000100000b64 a.out`start + 52

Above we created a target for "a.out" and ran and hit a
breakpoint at "main". Then we created a new target for /bin/ls
and ran it. Then we listed the targest and selected our original
"a.out" program, so we showed two concurent debug sessions
going on at the same time.

llvm-svn: 129695
2011-04-18 08:33:37 +00:00

572 lines
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//===-- PlatformRemoteiOS.cpp -----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "PlatformRemoteiOS.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Host/Host.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
//------------------------------------------------------------------
// Static Variables
//------------------------------------------------------------------
static uint32_t g_initialize_count = 0;
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
void
PlatformRemoteiOS::Initialize ()
{
if (g_initialize_count++ == 0)
{
PluginManager::RegisterPlugin (PlatformRemoteiOS::GetShortPluginNameStatic(),
PlatformRemoteiOS::GetDescriptionStatic(),
PlatformRemoteiOS::CreateInstance);
}
}
void
PlatformRemoteiOS::Terminate ()
{
if (g_initialize_count > 0)
{
if (--g_initialize_count == 0)
{
PluginManager::UnregisterPlugin (PlatformRemoteiOS::CreateInstance);
}
}
}
Platform*
PlatformRemoteiOS::CreateInstance ()
{
return new PlatformRemoteiOS ();
}
const char *
PlatformRemoteiOS::GetPluginNameStatic ()
{
return "PlatformRemoteiOS";
}
const char *
PlatformRemoteiOS::GetShortPluginNameStatic()
{
return "remote-ios";
}
const char *
PlatformRemoteiOS::GetDescriptionStatic()
{
return "Remote iOS platform plug-in.";
}
//------------------------------------------------------------------
/// Default Constructor
//------------------------------------------------------------------
PlatformRemoteiOS::PlatformRemoteiOS () :
PlatformDarwin (false), // This is a remote platform
m_device_support_directory (),
m_device_support_directory_for_os_version ()
{
}
//------------------------------------------------------------------
/// Destructor.
///
/// The destructor is virtual since this class is designed to be
/// inherited from by the plug-in instance.
//------------------------------------------------------------------
PlatformRemoteiOS::~PlatformRemoteiOS()
{
}
void
PlatformRemoteiOS::GetStatus (Stream &strm)
{
Platform::GetStatus (strm);
const char *sdk_directory = GetDeviceSupportDirectoryForOSVersion();
if (sdk_directory)
strm.Printf (" SDK Path: \"%s\"\n", sdk_directory);
else
strm.PutCString (" SDK Path: error: unable to locate SDK\n");
}
Error
PlatformRemoteiOS::ResolveExecutable (const FileSpec &exe_file,
const ArchSpec &exe_arch,
lldb::ModuleSP &exe_module_sp)
{
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())
{
error = ModuleList::GetSharedModule (resolved_exe_file,
exe_arch,
NULL,
NULL,
0,
exe_module_sp,
NULL,
NULL);
if (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)
{
error = ModuleList::GetSharedModule (resolved_exe_file,
platform_arch,
NULL,
NULL,
0,
exe_module_sp,
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%s%s' doesn't contain any '%s' platform architectures: %s",
exe_file.GetDirectory().AsCString(""),
exe_file.GetDirectory() ? "/" : "",
exe_file.GetFilename().AsCString(""),
GetShortPluginName(),
arch_names.GetString().c_str());
}
}
else
{
error.SetErrorStringWithFormat ("'%s%s%s' does not exist",
exe_file.GetDirectory().AsCString(""),
exe_file.GetDirectory() ? "/" : "",
exe_file.GetFilename().AsCString(""));
}
return error;
}
const char *
PlatformRemoteiOS::GetDeviceSupportDirectory()
{
if (m_device_support_directory.empty())
{
bool developer_dir_path_valid = false;
char developer_dir_path[PATH_MAX];
FileSpec temp_file_spec;
if (Host::GetLLDBPath (ePathTypeLLDBShlibDir, temp_file_spec))
{
if (temp_file_spec.GetPath (developer_dir_path, sizeof(developer_dir_path)))
{
char *lib_priv_frameworks = strstr (developer_dir_path, "/Library/PrivateFrameworks/LLDB.framework");
if (lib_priv_frameworks)
{
*lib_priv_frameworks = '\0';
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.c_str(), false);
size_t bytes_read = temp_file_spec.ReadFileContents(0, developer_dir_path, sizeof(developer_dir_path));
if (bytes_read > 0)
{
developer_dir_path[bytes_read] = '\0';
while (developer_dir_path[bytes_read-1] == '\r' ||
developer_dir_path[bytes_read-1] == '\n')
developer_dir_path[--bytes_read] = '\0';
developer_dir_path_valid = true;
}
}
if (developer_dir_path_valid)
{
temp_file_spec.SetFile (developer_dir_path, false);
if (temp_file_spec.Exists())
{
m_device_support_directory.assign (developer_dir_path);
return m_device_support_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_device_support_directory.assign (1, '\0');
}
// We should have put a single NULL character into m_device_support_directory
// or it should have a valid path if the code gets here
assert (m_device_support_directory.empty() == false);
if (m_device_support_directory[0])
return m_device_support_directory.c_str();
return NULL;
}
const char *
PlatformRemoteiOS::GetDeviceSupportDirectoryForOSVersion()
{
if (m_device_support_directory_for_os_version.empty())
{
const char *device_support_dir = GetDeviceSupportDirectory();
const bool resolve_path = true;
if (device_support_dir)
{
m_device_support_directory_for_os_version.assign (device_support_dir);
m_device_support_directory_for_os_version.append ("/Platforms/iPhoneOS.platform/DeviceSupport");
uint32_t major = 0;
uint32_t minor = 0;
uint32_t update = 0;
FileSpec file_spec;
char resolved_path[PATH_MAX];
if (GetOSVersion(major, minor, update))
{
if (major != UINT32_MAX && minor != UINT32_MAX && update != UINT32_MAX)
{
::snprintf (resolved_path,
sizeof(resolved_path),
"%s/%i.%i.%i",
m_device_support_directory_for_os_version.c_str(),
major,
minor,
update);
file_spec.SetFile(resolved_path, resolve_path);
if (file_spec.Exists() && file_spec.GetPath(resolved_path, sizeof(resolved_path)))
{
m_device_support_directory_for_os_version.assign (resolved_path);
return m_device_support_directory_for_os_version.c_str();
}
}
if (major != UINT32_MAX && minor != UINT32_MAX)
{
::snprintf (resolved_path,
sizeof(resolved_path),
"%s/%i.%i",
m_device_support_directory_for_os_version.c_str(),
major,
minor);
file_spec.SetFile(resolved_path, resolve_path);
if (file_spec.Exists() && file_spec.GetPath(resolved_path, sizeof(resolved_path)))
{
m_device_support_directory_for_os_version.assign (resolved_path);
return m_device_support_directory_for_os_version.c_str();
}
}
}
else
{
// Use the default as we have no OS version selected
m_device_support_directory_for_os_version.append ("/Latest");
file_spec.SetFile(m_device_support_directory_for_os_version.c_str(), resolve_path);
if (file_spec.Exists() && file_spec.GetPath(resolved_path, sizeof(resolved_path)))
{
if (m_major_os_version == UINT32_MAX)
{
const char *resolved_latest_dirname = file_spec.GetFilename().GetCString();
const char *pos = Args::StringToVersion (resolved_latest_dirname,
m_major_os_version,
m_minor_os_version,
m_update_os_version);
if (m_build_update.empty() && pos[0] == ' ' && pos[1] == '(')
{
const char *end_paren = strchr (pos + 2, ')');
m_build_update.assign (pos + 2, end_paren);
}
}
m_device_support_directory_for_os_version.assign (resolved_path);
return m_device_support_directory_for_os_version.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_device_support_directory_for_os_version.assign (1, '\0');
}
// We should have put a single NULL character into m_device_support_directory_for_os_version
// or it should have a valid path if the code gets here
assert (m_device_support_directory_for_os_version.empty() == false);
if (m_device_support_directory_for_os_version[0])
return m_device_support_directory_for_os_version.c_str();
return NULL;
}
Error
PlatformRemoteiOS::GetFile (const FileSpec &platform_file,
const UUID *uuid_ptr,
FileSpec &local_file)
{
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/Symbols.Internal/%s",
os_version_dir,
platform_file_path);
local_file.SetFile(resolved_path, true);
if (local_file.Exists())
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())
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());
}
else
{
error.SetErrorString ("invalid platform file argument");
}
return error;
}
Error
PlatformRemoteiOS::GetSharedModule (const FileSpec &platform_file,
const ArchSpec &arch,
const UUID *uuid_ptr,
const ConstString *object_name_ptr,
off_t object_offset,
ModuleSP &module_sp,
ModuleSP *old_module_sp_ptr,
bool *did_create_ptr)
{
// For iOS, the SDK files are all cached locally on the host
// system. So first we ask for the file in the cached SDK,
// then we attempt to get a shared module for the right architecture
// with the right UUID.
Error error;
FileSpec local_file;
error = GetFile (platform_file, uuid_ptr, local_file);
if (error.Success())
{
const bool always_create = false;
error = ModuleList::GetSharedModule (local_file,
arch,
uuid_ptr,
object_name_ptr,
object_offset,
module_sp,
old_module_sp_ptr,
did_create_ptr,
always_create);
}
if (module_sp)
module_sp->SetPlatformFileSpec(platform_file);
return error;
}
uint32_t
PlatformRemoteiOS::FindProcesses (const ProcessInstanceInfoMatch &match_info,
ProcessInstanceInfoList &process_infos)
{
// TODO: if connected, send a packet to get the remote process infos by name
process_infos.Clear();
return 0;
}
bool
PlatformRemoteiOS::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info)
{
// TODO: if connected, send a packet to get the remote process info
process_info.Clear();
return false;
}
bool
PlatformRemoteiOS::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch)
{
ArchSpec system_arch (GetSystemArchitecture());
const ArchSpec::Core system_core = system_arch.GetCore();
switch (system_core)
{
default:
switch (idx)
{
case 0: arch.SetTriple ("armv7-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv7f-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("armv7k-apple-darwin", NULL); return true;
case 3: arch.SetTriple ("armv7s-apple-darwin", NULL); return true;
case 4: arch.SetTriple ("armv6-apple-darwin", NULL); return true;
case 5: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 6: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 7: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv7f:
switch (idx)
{
case 0: arch.SetTriple ("armv7f-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv7-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("armv6-apple-darwin", NULL); return true;
case 3: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 4: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 5: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv7k:
switch (idx)
{
case 0: arch.SetTriple ("armv7k-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv7-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("armv6-apple-darwin", NULL); return true;
case 3: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 4: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 5: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv7s:
switch (idx)
{
case 0: arch.SetTriple ("armv7s-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv7-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("armv6-apple-darwin", NULL); return true;
case 3: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 4: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 5: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv7:
switch (idx)
{
case 0: arch.SetTriple ("armv7-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv6-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 3: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 4: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv6:
switch (idx)
{
case 0: arch.SetTriple ("armv6-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 3: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv5:
switch (idx)
{
case 0: arch.SetTriple ("armv5-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 2: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
case ArchSpec::eCore_arm_armv4:
switch (idx)
{
case 0: arch.SetTriple ("armv4-apple-darwin", NULL); return true;
case 1: arch.SetTriple ("arm-apple-darwin", NULL); return true;
default: break;
}
break;
}
arch.Clear();
return false;
}
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