| //===-- PlatformFreeBSD.cpp -------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/lldb-python.h" |
| |
| #include "PlatformFreeBSD.h" |
| #include "lldb/Host/Config.h" |
| |
| // C Includes |
| #include <stdio.h> |
| #ifndef LLDB_DISABLE_POSIX |
| #include <sys/utsname.h> |
| #endif |
| |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/Core/Error.h" |
| #include "lldb/Core/Debugger.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/ModuleSpec.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Host/Host.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| Platform * |
| PlatformFreeBSD::CreateInstance (bool force, const lldb_private::ArchSpec *arch) |
| { |
| // The only time we create an instance is when we are creating a remote |
| // freebsd platform |
| const bool is_host = false; |
| |
| bool create = force; |
| if (create == false && arch && arch->IsValid()) |
| { |
| const llvm::Triple &triple = arch->GetTriple(); |
| switch (triple.getVendor()) |
| { |
| case llvm::Triple::PC: |
| create = true; |
| break; |
| |
| #if defined(__FreeBSD__) || defined(__OpenBSD__) |
| // Only accept "unknown" for the vendor if the host is BSD and |
| // it "unknown" wasn't specified (it was just returned because it |
| // was NOT specified) |
| case llvm::Triple::UnknownArch: |
| create = !arch->TripleVendorWasSpecified(); |
| break; |
| #endif |
| default: |
| break; |
| } |
| |
| if (create) |
| { |
| switch (triple.getOS()) |
| { |
| case llvm::Triple::FreeBSD: |
| case llvm::Triple::KFreeBSD: |
| break; |
| |
| #if defined(__FreeBSD__) || defined(__OpenBSD__) |
| // Only accept "unknown" for the OS if the host is BSD and |
| // it "unknown" wasn't specified (it was just returned because it |
| // was NOT specified) |
| case llvm::Triple::UnknownOS: |
| create = arch->TripleOSWasSpecified(); |
| break; |
| #endif |
| default: |
| create = false; |
| break; |
| } |
| } |
| } |
| if (create) |
| return new PlatformFreeBSD (is_host); |
| return NULL; |
| |
| } |
| |
| lldb_private::ConstString |
| PlatformFreeBSD::GetPluginNameStatic (bool is_host) |
| { |
| if (is_host) |
| { |
| static ConstString g_host_name(Platform::GetHostPlatformName ()); |
| return g_host_name; |
| } |
| else |
| { |
| static ConstString g_remote_name("remote-freebsd"); |
| return g_remote_name; |
| } |
| } |
| |
| const char * |
| PlatformFreeBSD::GetDescriptionStatic (bool is_host) |
| { |
| if (is_host) |
| return "Local FreeBSD user platform plug-in."; |
| else |
| return "Remote FreeBSD user platform plug-in."; |
| } |
| |
| static uint32_t g_initialize_count = 0; |
| |
| void |
| PlatformFreeBSD::Initialize () |
| { |
| if (g_initialize_count++ == 0) |
| { |
| #if defined (__FreeBSD__) |
| // Force a host flag to true for the default platform object. |
| PlatformSP default_platform_sp (new PlatformFreeBSD(true)); |
| default_platform_sp->SetSystemArchitecture (Host::GetArchitecture()); |
| Platform::SetDefaultPlatform (default_platform_sp); |
| #endif |
| PluginManager::RegisterPlugin(PlatformFreeBSD::GetPluginNameStatic(false), |
| PlatformFreeBSD::GetDescriptionStatic(false), |
| PlatformFreeBSD::CreateInstance); |
| } |
| } |
| |
| void |
| PlatformFreeBSD::Terminate () |
| { |
| if (g_initialize_count > 0 && --g_initialize_count == 0) |
| PluginManager::UnregisterPlugin (PlatformFreeBSD::CreateInstance); |
| } |
| |
| //------------------------------------------------------------------ |
| /// Default Constructor |
| //------------------------------------------------------------------ |
| PlatformFreeBSD::PlatformFreeBSD (bool is_host) : |
| Platform(is_host), |
| m_remote_platform_sp() |
| { |
| } |
| |
| //------------------------------------------------------------------ |
| /// Destructor. |
| /// |
| /// The destructor is virtual since this class is designed to be |
| /// inherited from by the plug-in instance. |
| //------------------------------------------------------------------ |
| PlatformFreeBSD::~PlatformFreeBSD() |
| { |
| } |
| |
| //TODO:VK: inherit PlatformPOSIX |
| lldb_private::Error |
| PlatformFreeBSD::RunShellCommand (const char *command, |
| const char *working_dir, |
| int *status_ptr, |
| int *signo_ptr, |
| std::string *command_output, |
| uint32_t timeout_sec) |
| { |
| if (IsHost()) |
| return Host::RunShellCommand(command, working_dir, status_ptr, signo_ptr, command_output, timeout_sec); |
| else |
| { |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->RunShellCommand(command, working_dir, status_ptr, signo_ptr, command_output, timeout_sec); |
| else |
| return Error("unable to run a remote command without a platform"); |
| } |
| } |
| |
| |
| Error |
| PlatformFreeBSD::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, |
| module_search_paths_ptr); |
| } |
| else |
| { |
| // We may connect to a process and use the provided executable (Don't use local $PATH). |
| |
| // Resolve any executable within a bundle on MacOSX |
| Host::ResolveExecutableInBundle (resolved_exe_file); |
| |
| if (resolved_exe_file.Exists()) { |
| error.Clear(); |
| } |
| else |
| { |
| exe_file.GetPath(exe_path, sizeof(exe_path)); |
| 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 (module_spec.GetArchitecture().IsValid()) |
| { |
| error = ModuleList::GetSharedModule (module_spec, |
| exe_module_sp, |
| module_search_paths_ptr, |
| 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; |
| ArchSpec platform_arch; |
| for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, platform_arch); ++idx) |
| { |
| error = ModuleList::GetSharedModule (module_spec, |
| exe_module_sp, |
| module_search_paths_ptr, |
| 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()); |
| } |
| } |
| } |
| |
| return error; |
| } |
| |
| size_t |
| PlatformFreeBSD::GetSoftwareBreakpointTrapOpcode (Target &target, BreakpointSite *bp_site) |
| { |
| ArchSpec arch = target.GetArchitecture(); |
| const uint8_t *trap_opcode = NULL; |
| size_t trap_opcode_size = 0; |
| |
| switch (arch.GetMachine()) |
| { |
| default: |
| assert(false && "Unhandled architecture in PlatformFreeBSD::GetSoftwareBreakpointTrapOpcode()"); |
| break; |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| { |
| static const uint8_t g_i386_opcode[] = { 0xCC }; |
| trap_opcode = g_i386_opcode; |
| trap_opcode_size = sizeof(g_i386_opcode); |
| } |
| break; |
| } |
| |
| if (bp_site->SetTrapOpcode(trap_opcode, trap_opcode_size)) |
| return trap_opcode_size; |
| |
| return 0; |
| } |
| |
| bool |
| PlatformFreeBSD::GetRemoteOSVersion () |
| { |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->GetOSVersion (m_major_os_version, |
| m_minor_os_version, |
| m_update_os_version); |
| return false; |
| } |
| |
| bool |
| PlatformFreeBSD::GetRemoteOSBuildString (std::string &s) |
| { |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->GetRemoteOSBuildString (s); |
| s.clear(); |
| return false; |
| } |
| |
| bool |
| PlatformFreeBSD::GetRemoteOSKernelDescription (std::string &s) |
| { |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->GetRemoteOSKernelDescription (s); |
| s.clear(); |
| return false; |
| } |
| |
| // Remote Platform subclasses need to override this function |
| ArchSpec |
| PlatformFreeBSD::GetRemoteSystemArchitecture () |
| { |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->GetRemoteSystemArchitecture (); |
| return ArchSpec(); |
| } |
| |
| |
| const char * |
| PlatformFreeBSD::GetHostname () |
| { |
| if (IsHost()) |
| return Platform::GetHostname(); |
| |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->GetHostname (); |
| return NULL; |
| } |
| |
| bool |
| PlatformFreeBSD::IsConnected () const |
| { |
| if (IsHost()) |
| return true; |
| else if (m_remote_platform_sp) |
| return m_remote_platform_sp->IsConnected(); |
| return false; |
| } |
| |
| Error |
| PlatformFreeBSD::ConnectRemote (Args& args) |
| { |
| Error error; |
| if (IsHost()) |
| { |
| error.SetErrorStringWithFormat ("can't connect to the host platform '%s', always connected", GetPluginName().GetCString()); |
| } |
| else |
| { |
| if (!m_remote_platform_sp) |
| m_remote_platform_sp = Platform::Create ("remote-gdb-server", error); |
| |
| if (m_remote_platform_sp) |
| { |
| if (error.Success()) |
| { |
| if (m_remote_platform_sp) |
| { |
| error = m_remote_platform_sp->ConnectRemote (args); |
| } |
| else |
| { |
| error.SetErrorString ("\"platform connect\" takes a single argument: <connect-url>"); |
| } |
| } |
| } |
| else |
| error.SetErrorString ("failed to create a 'remote-gdb-server' platform"); |
| |
| if (error.Fail()) |
| m_remote_platform_sp.reset(); |
| } |
| |
| return error; |
| } |
| |
| Error |
| PlatformFreeBSD::DisconnectRemote () |
| { |
| Error error; |
| |
| if (IsHost()) |
| { |
| error.SetErrorStringWithFormat ("can't disconnect from the host platform '%s', always connected", GetPluginName().GetCString()); |
| } |
| else |
| { |
| if (m_remote_platform_sp) |
| error = m_remote_platform_sp->DisconnectRemote (); |
| else |
| error.SetErrorString ("the platform is not currently connected"); |
| } |
| return error; |
| } |
| |
| bool |
| PlatformFreeBSD::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) |
| { |
| bool success = false; |
| if (IsHost()) |
| { |
| success = Platform::GetProcessInfo (pid, process_info); |
| } |
| else if (m_remote_platform_sp) |
| { |
| success = m_remote_platform_sp->GetProcessInfo (pid, process_info); |
| } |
| return success; |
| } |
| |
| |
| |
| uint32_t |
| PlatformFreeBSD::FindProcesses (const ProcessInstanceInfoMatch &match_info, |
| ProcessInstanceInfoList &process_infos) |
| { |
| uint32_t match_count = 0; |
| if (IsHost()) |
| { |
| // Let the base class figure out the host details |
| match_count = Platform::FindProcesses (match_info, process_infos); |
| } |
| else |
| { |
| // If we are remote, we can only return results if we are connected |
| if (m_remote_platform_sp) |
| match_count = m_remote_platform_sp->FindProcesses (match_info, process_infos); |
| } |
| return match_count; |
| } |
| |
| Error |
| PlatformFreeBSD::LaunchProcess (ProcessLaunchInfo &launch_info) |
| { |
| Error error; |
| if (IsHost()) |
| { |
| error = Platform::LaunchProcess (launch_info); |
| } |
| else |
| { |
| if (m_remote_platform_sp) |
| error = m_remote_platform_sp->LaunchProcess (launch_info); |
| else |
| error.SetErrorString ("the platform is not currently connected"); |
| } |
| return error; |
| } |
| |
| lldb::ProcessSP |
| PlatformFreeBSD::Attach(ProcessAttachInfo &attach_info, |
| Debugger &debugger, |
| Target *target, |
| Listener &listener, |
| Error &error) |
| { |
| lldb::ProcessSP process_sp; |
| if (IsHost()) |
| { |
| if (target == NULL) |
| { |
| TargetSP new_target_sp; |
| ArchSpec emptyArchSpec; |
| |
| error = debugger.GetTargetList().CreateTarget (debugger, |
| NULL, |
| emptyArchSpec, |
| false, |
| m_remote_platform_sp, |
| new_target_sp); |
| target = new_target_sp.get(); |
| } |
| else |
| error.Clear(); |
| |
| if (target && error.Success()) |
| { |
| debugger.GetTargetList().SetSelectedTarget(target); |
| // The freebsd always currently uses the GDB remote debugger plug-in |
| // so even when debugging locally we are debugging remotely! |
| // Just like the darwin plugin. |
| process_sp = target->CreateProcess (listener, "gdb-remote", NULL); |
| |
| if (process_sp) |
| error = process_sp->Attach (attach_info); |
| } |
| } |
| else |
| { |
| if (m_remote_platform_sp) |
| process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, listener, error); |
| else |
| error.SetErrorString ("the platform is not currently connected"); |
| } |
| return process_sp; |
| } |
| |
| const char * |
| PlatformFreeBSD::GetUserName (uint32_t uid) |
| { |
| // Check the cache in Platform in case we have already looked this uid up |
| const char *user_name = Platform::GetUserName(uid); |
| if (user_name) |
| return user_name; |
| |
| if (IsRemote() && m_remote_platform_sp) |
| return m_remote_platform_sp->GetUserName(uid); |
| return NULL; |
| } |
| |
| const char * |
| PlatformFreeBSD::GetGroupName (uint32_t gid) |
| { |
| const char *group_name = Platform::GetGroupName(gid); |
| if (group_name) |
| return group_name; |
| |
| if (IsRemote() && m_remote_platform_sp) |
| return m_remote_platform_sp->GetGroupName(gid); |
| return NULL; |
| } |
| |
| |
| // From PlatformMacOSX only |
| Error |
| PlatformFreeBSD::GetFileWithUUID (const FileSpec &platform_file, |
| const UUID *uuid_ptr, |
| FileSpec &local_file) |
| { |
| if (IsRemote()) |
| { |
| if (m_remote_platform_sp) |
| return m_remote_platform_sp->GetFileWithUUID (platform_file, uuid_ptr, local_file); |
| } |
| |
| // Default to the local case |
| local_file = platform_file; |
| return Error(); |
| } |
| |
| Error |
| PlatformFreeBSD::GetSharedModule (const ModuleSpec &module_spec, |
| ModuleSP &module_sp, |
| const FileSpecList *module_search_paths_ptr, |
| ModuleSP *old_module_sp_ptr, |
| bool *did_create_ptr) |
| { |
| Error 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, |
| 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, |
| module_sp, |
| module_search_paths_ptr, |
| old_module_sp_ptr, |
| did_create_ptr); |
| } |
| if (module_sp) |
| module_sp->SetPlatformFileSpec(module_spec.GetFileSpec()); |
| return error; |
| } |
| |
| |
| bool |
| PlatformFreeBSD::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch) |
| { |
| // From macosx;s plugin code. For FreeBSD we may want to support more archs. |
| if (idx == 0) |
| { |
| arch = Host::GetArchitecture (Host::eSystemDefaultArchitecture); |
| return arch.IsValid(); |
| } |
| else if (idx == 1) |
| { |
| ArchSpec platform_arch (Host::GetArchitecture (Host::eSystemDefaultArchitecture)); |
| ArchSpec platform_arch64 (Host::GetArchitecture (Host::eSystemDefaultArchitecture64)); |
| if (platform_arch.IsExactMatch(platform_arch64)) |
| { |
| // This freebsd 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 = Host::GetArchitecture (Host::eSystemDefaultArchitecture32); |
| return arch.IsValid(); |
| } |
| } |
| return false; |
| } |
| |
| void |
| PlatformFreeBSD::GetStatus (Stream &strm) |
| { |
| #ifndef LLDB_DISABLE_POSIX |
| struct utsname un; |
| |
| strm << " Host: "; |
| |
| ::memset(&un, 0, sizeof(utsname)); |
| if (uname(&un) == -1) |
| strm << "FreeBSD" << '\n'; |
| |
| strm << un.sysname << ' ' << un.release; |
| if (un.nodename[0] != '\0') |
| strm << " (" << un.nodename << ')'; |
| strm << '\n'; |
| |
| // Dump a common information about the platform status. |
| strm << "Host: " << un.sysname << ' ' << un.release << ' ' << un.version << '\n'; |
| #endif |
| |
| Platform::GetStatus(strm); |
| } |
| |
| void |
| PlatformFreeBSD::CalculateTrapHandlerSymbolNames () |
| { |
| m_trap_handlers.push_back (ConstString ("_sigtramp")); |
| } |
