bf9a77305f
This moves the following classes from Core -> Utility. ConstString Error RegularExpression Stream StreamString The goal here is to get lldbUtility into a state where it has no dependendencies except on itself and LLVM, so it can be the starting point at which to start untangling LLDB's dependencies. These are all low level and very widely used classes, and previously lldbUtility had dependencies up to lldbCore in order to use these classes. So moving then down to lldbUtility makes sense from both the short term and long term perspective in solving this problem. Differential Revision: https://reviews.llvm.org/D29427 llvm-svn: 293941
397 lines
14 KiB
C++
397 lines
14 KiB
C++
//===-- PlatformAppleWatchSimulator.cpp -------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "PlatformAppleWatchSimulator.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Breakpoint/BreakpointLocation.h"
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#include "lldb/Core/ArchSpec.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleList.h"
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Host/FileSpec.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/Error.h"
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#include "lldb/Utility/StreamString.h"
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using namespace lldb;
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using namespace lldb_private;
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//------------------------------------------------------------------
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// Static Variables
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//------------------------------------------------------------------
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static uint32_t g_initialize_count = 0;
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//------------------------------------------------------------------
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// Static Functions
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//------------------------------------------------------------------
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void PlatformAppleWatchSimulator::Initialize() {
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PlatformDarwin::Initialize();
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if (g_initialize_count++ == 0) {
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PluginManager::RegisterPlugin(
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PlatformAppleWatchSimulator::GetPluginNameStatic(),
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PlatformAppleWatchSimulator::GetDescriptionStatic(),
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PlatformAppleWatchSimulator::CreateInstance);
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}
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}
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void PlatformAppleWatchSimulator::Terminate() {
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if (g_initialize_count > 0) {
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if (--g_initialize_count == 0) {
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PluginManager::UnregisterPlugin(
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PlatformAppleWatchSimulator::CreateInstance);
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}
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}
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PlatformDarwin::Terminate();
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}
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PlatformSP PlatformAppleWatchSimulator::CreateInstance(bool force,
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const ArchSpec *arch) {
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Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_PLATFORM));
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if (log) {
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const char *arch_name;
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if (arch && arch->GetArchitectureName())
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arch_name = arch->GetArchitectureName();
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else
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arch_name = "<null>";
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const char *triple_cstr =
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arch ? arch->GetTriple().getTriple().c_str() : "<null>";
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log->Printf("PlatformAppleWatchSimulator::%s(force=%s, arch={%s,%s})",
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__FUNCTION__, force ? "true" : "false", arch_name, triple_cstr);
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}
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bool create = force;
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if (create == false && arch && arch->IsValid()) {
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switch (arch->GetMachine()) {
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case llvm::Triple::x86_64: {
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const llvm::Triple &triple = arch->GetTriple();
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switch (triple.getVendor()) {
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case llvm::Triple::Apple:
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create = true;
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break;
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#if defined(__APPLE__)
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// Only accept "unknown" for the vendor if the host is Apple and
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// it "unknown" wasn't specified (it was just returned because it
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// was NOT specified)
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case llvm::Triple::UnknownArch:
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create = !arch->TripleVendorWasSpecified();
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break;
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#endif
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default:
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break;
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}
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if (create) {
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switch (triple.getOS()) {
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case llvm::Triple::WatchOS:
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break;
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#if defined(__APPLE__)
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// Only accept "unknown" for the OS if the host is Apple and
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// it "unknown" wasn't specified (it was just returned because it
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// was NOT specified)
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case llvm::Triple::UnknownOS:
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create = !arch->TripleOSWasSpecified();
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break;
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#endif
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default:
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create = false;
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break;
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}
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}
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} break;
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default:
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break;
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}
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}
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if (create) {
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if (log)
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log->Printf("PlatformAppleWatchSimulator::%s() creating platform",
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__FUNCTION__);
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return PlatformSP(new PlatformAppleWatchSimulator());
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}
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if (log)
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log->Printf(
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"PlatformAppleWatchSimulator::%s() aborting creation of platform",
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__FUNCTION__);
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return PlatformSP();
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}
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lldb_private::ConstString PlatformAppleWatchSimulator::GetPluginNameStatic() {
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static ConstString g_name("watchos-simulator");
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return g_name;
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}
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const char *PlatformAppleWatchSimulator::GetDescriptionStatic() {
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return "Apple Watch simulator platform plug-in.";
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}
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//------------------------------------------------------------------
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/// Default Constructor
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//------------------------------------------------------------------
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PlatformAppleWatchSimulator::PlatformAppleWatchSimulator()
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: PlatformDarwin(true), m_sdk_directory() {}
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//------------------------------------------------------------------
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/// Destructor.
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///
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/// The destructor is virtual since this class is designed to be
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/// inherited from by the plug-in instance.
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//------------------------------------------------------------------
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PlatformAppleWatchSimulator::~PlatformAppleWatchSimulator() {}
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void PlatformAppleWatchSimulator::GetStatus(Stream &strm) {
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Platform::GetStatus(strm);
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const char *sdk_directory = GetSDKDirectoryAsCString();
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if (sdk_directory)
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strm.Printf(" SDK Path: \"%s\"\n", sdk_directory);
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else
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strm.PutCString(" SDK Path: error: unable to locate SDK\n");
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}
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Error PlatformAppleWatchSimulator::ResolveExecutable(
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const ModuleSpec &module_spec, lldb::ModuleSP &exe_module_sp,
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const FileSpecList *module_search_paths_ptr) {
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Error error;
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// Nothing special to do here, just use the actual file and architecture
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ModuleSpec resolved_module_spec(module_spec);
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// If we have "ls" as the exe_file, resolve the executable loation based on
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// the current path variables
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// TODO: resolve bare executables in the Platform SDK
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// if (!resolved_exe_file.Exists())
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// resolved_exe_file.ResolveExecutableLocation ();
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// Resolve any executable within a bundle on MacOSX
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// TODO: verify that this handles shallow bundles, if not then implement one
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// ourselves
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Host::ResolveExecutableInBundle(resolved_module_spec.GetFileSpec());
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if (resolved_module_spec.GetFileSpec().Exists()) {
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if (resolved_module_spec.GetArchitecture().IsValid()) {
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error = ModuleList::GetSharedModule(resolved_module_spec, exe_module_sp,
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NULL, NULL, NULL);
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if (exe_module_sp && exe_module_sp->GetObjectFile())
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return error;
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exe_module_sp.reset();
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}
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// No valid architecture was specified or the exact ARM slice wasn't
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// found so ask the platform for the architectures that we should be
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// using (in the correct order) and see if we can find a match that way
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StreamString arch_names;
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ArchSpec platform_arch;
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for (uint32_t idx = 0; GetSupportedArchitectureAtIndex(
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idx, resolved_module_spec.GetArchitecture());
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++idx) {
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// Only match x86 with x86 and x86_64 with x86_64...
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if (!module_spec.GetArchitecture().IsValid() ||
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module_spec.GetArchitecture().GetCore() ==
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resolved_module_spec.GetArchitecture().GetCore()) {
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error = ModuleList::GetSharedModule(resolved_module_spec, exe_module_sp,
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NULL, NULL, NULL);
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// Did we find an executable using one of the
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if (error.Success()) {
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if (exe_module_sp && exe_module_sp->GetObjectFile())
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break;
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else
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error.SetErrorToGenericError();
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}
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if (idx > 0)
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arch_names.PutCString(", ");
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arch_names.PutCString(platform_arch.GetArchitectureName());
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}
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}
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if (error.Fail() || !exe_module_sp) {
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if (resolved_module_spec.GetFileSpec().Readable()) {
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error.SetErrorStringWithFormat(
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"'%s' doesn't contain any '%s' platform architectures: %s",
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resolved_module_spec.GetFileSpec().GetPath().c_str(),
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GetPluginName().GetCString(), arch_names.GetString().str().c_str());
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} else {
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error.SetErrorStringWithFormat(
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"'%s' is not readable",
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resolved_module_spec.GetFileSpec().GetPath().c_str());
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}
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}
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} else {
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error.SetErrorStringWithFormat("'%s' does not exist",
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module_spec.GetFileSpec().GetPath().c_str());
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}
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return error;
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}
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static FileSpec::EnumerateDirectoryResult
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EnumerateDirectoryCallback(void *baton, FileSpec::FileType file_type,
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const FileSpec &file_spec) {
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if (file_type == FileSpec::eFileTypeDirectory) {
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const char *filename = file_spec.GetFilename().GetCString();
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if (filename &&
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strncmp(filename, "AppleWatchSimulator",
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strlen("AppleWatchSimulator")) == 0) {
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::snprintf((char *)baton, PATH_MAX, "%s", filename);
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return FileSpec::eEnumerateDirectoryResultQuit;
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}
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}
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return FileSpec::eEnumerateDirectoryResultNext;
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}
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const char *PlatformAppleWatchSimulator::GetSDKDirectoryAsCString() {
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std::lock_guard<std::mutex> guard(m_sdk_dir_mutex);
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if (m_sdk_directory.empty()) {
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const char *developer_dir = GetDeveloperDirectory();
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if (developer_dir) {
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char sdks_directory[PATH_MAX];
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char sdk_dirname[PATH_MAX];
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sdk_dirname[0] = '\0';
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snprintf(sdks_directory, sizeof(sdks_directory),
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"%s/Platforms/AppleWatchSimulator.platform/Developer/SDKs",
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developer_dir);
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FileSpec simulator_sdk_spec;
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bool find_directories = true;
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bool find_files = false;
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bool find_other = false;
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FileSpec::EnumerateDirectory(sdks_directory, find_directories, find_files,
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find_other, EnumerateDirectoryCallback,
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sdk_dirname);
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if (sdk_dirname[0]) {
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m_sdk_directory = sdks_directory;
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m_sdk_directory.append(1, '/');
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m_sdk_directory.append(sdk_dirname);
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return m_sdk_directory.c_str();
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}
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}
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// Assign a single NULL character so we know we tried to find the device
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// support directory and we don't keep trying to find it over and over.
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m_sdk_directory.assign(1, '\0');
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}
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// We should have put a single NULL character into m_sdk_directory
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// or it should have a valid path if the code gets here
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assert(m_sdk_directory.empty() == false);
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if (m_sdk_directory[0])
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return m_sdk_directory.c_str();
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return NULL;
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}
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Error PlatformAppleWatchSimulator::GetSymbolFile(const FileSpec &platform_file,
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const UUID *uuid_ptr,
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FileSpec &local_file) {
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Error error;
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char platform_file_path[PATH_MAX];
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if (platform_file.GetPath(platform_file_path, sizeof(platform_file_path))) {
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char resolved_path[PATH_MAX];
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const char *sdk_dir = GetSDKDirectoryAsCString();
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if (sdk_dir) {
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::snprintf(resolved_path, sizeof(resolved_path), "%s/%s", sdk_dir,
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platform_file_path);
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// First try in the SDK and see if the file is in there
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local_file.SetFile(resolved_path, true);
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if (local_file.Exists())
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return error;
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// Else fall back to the actual path itself
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local_file.SetFile(platform_file_path, true);
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if (local_file.Exists())
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return error;
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}
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error.SetErrorStringWithFormat(
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"unable to locate a platform file for '%s' in platform '%s'",
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platform_file_path, GetPluginName().GetCString());
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} else {
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error.SetErrorString("invalid platform file argument");
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}
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return error;
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}
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Error PlatformAppleWatchSimulator::GetSharedModule(
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const ModuleSpec &module_spec, lldb_private::Process *process,
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ModuleSP &module_sp, const FileSpecList *module_search_paths_ptr,
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ModuleSP *old_module_sp_ptr, bool *did_create_ptr) {
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// For AppleWatch, the SDK files are all cached locally on the host
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// system. So first we ask for the file in the cached SDK,
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// then we attempt to get a shared module for the right architecture
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// with the right UUID.
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Error error;
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ModuleSpec platform_module_spec(module_spec);
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const FileSpec &platform_file = module_spec.GetFileSpec();
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error = GetSymbolFile(platform_file, module_spec.GetUUIDPtr(),
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platform_module_spec.GetFileSpec());
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if (error.Success()) {
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error = ResolveExecutable(platform_module_spec, module_sp,
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module_search_paths_ptr);
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} else {
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const bool always_create = false;
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error = ModuleList::GetSharedModule(
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module_spec, module_sp, module_search_paths_ptr, old_module_sp_ptr,
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did_create_ptr, always_create);
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}
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if (module_sp)
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module_sp->SetPlatformFileSpec(platform_file);
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return error;
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}
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uint32_t PlatformAppleWatchSimulator::FindProcesses(
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const ProcessInstanceInfoMatch &match_info,
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ProcessInstanceInfoList &process_infos) {
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ProcessInstanceInfoList all_osx_process_infos;
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// First we get all OSX processes
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const uint32_t n = Host::FindProcesses(match_info, all_osx_process_infos);
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// Now we filter them down to only the WatchOS triples
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for (uint32_t i = 0; i < n; ++i) {
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const ProcessInstanceInfo &proc_info =
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all_osx_process_infos.GetProcessInfoAtIndex(i);
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if (proc_info.GetArchitecture().GetTriple().getOS() ==
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llvm::Triple::WatchOS) {
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process_infos.Append(proc_info);
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}
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}
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return process_infos.GetSize();
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}
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bool PlatformAppleWatchSimulator::GetSupportedArchitectureAtIndex(
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uint32_t idx, ArchSpec &arch) {
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static const ArchSpec platform_arch(
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HostInfo::GetArchitecture(HostInfo::eArchKind64));
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if (idx == 0) {
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arch = platform_arch;
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if (arch.IsValid()) {
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arch.GetTriple().setOS(llvm::Triple::WatchOS);
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return true;
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}
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}
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return false;
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}
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