forked from OSchip/llvm-project
467 lines
16 KiB
C++
467 lines
16 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/Error.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/Core/StreamString.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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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
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PlatformAppleWatchSimulator::Initialize ()
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{
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PlatformDarwin::Initialize ();
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if (g_initialize_count++ == 0)
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{
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PluginManager::RegisterPlugin (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
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PlatformAppleWatchSimulator::Terminate ()
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{
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if (g_initialize_count > 0)
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{
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if (--g_initialize_count == 0)
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{
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PluginManager::UnregisterPlugin (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
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PlatformAppleWatchSimulator::CreateInstance (bool force, const ArchSpec *arch)
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{
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Log *log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_PLATFORM));
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if (log)
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{
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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 = arch ? arch->GetTriple ().getTriple ().c_str() : "<null>";
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log->Printf ("PlatformAppleWatchSimulator::%s(force=%s, arch={%s,%s})", __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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{
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switch (arch->GetMachine())
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{
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case llvm::Triple::x86_64:
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{
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const llvm::Triple &triple = arch->GetTriple();
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switch (triple.getVendor())
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{
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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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{
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switch (triple.getOS())
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{
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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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}
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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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{
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if (log)
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log->Printf ("PlatformAppleWatchSimulator::%s() creating platform", __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 ("PlatformAppleWatchSimulator::%s() aborting creation of platform", __FUNCTION__);
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return PlatformSP();
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}
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lldb_private::ConstString
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PlatformAppleWatchSimulator::GetPluginNameStatic ()
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{
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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 *
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PlatformAppleWatchSimulator::GetDescriptionStatic()
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{
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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),
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m_sdk_directory ()
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{
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}
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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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{
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}
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void
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PlatformAppleWatchSimulator::GetStatus (Stream &strm)
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{
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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
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PlatformAppleWatchSimulator::ResolveExecutable (const ModuleSpec &module_spec,
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lldb::ModuleSP &exe_module_sp,
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const FileSpecList *module_search_paths_ptr)
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{
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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 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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{
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if (resolved_module_spec.GetArchitecture().IsValid())
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{
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error = ModuleList::GetSharedModule (resolved_module_spec,
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exe_module_sp,
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NULL,
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NULL,
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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 (idx, resolved_module_spec.GetArchitecture()); ++idx)
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{
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// Only match x86 with x86 and x86_64 with x86_64...
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if (!module_spec.GetArchitecture().IsValid() || module_spec.GetArchitecture().GetCore() == resolved_module_spec.GetArchitecture().GetCore())
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{
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error = ModuleList::GetSharedModule (resolved_module_spec,
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exe_module_sp,
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NULL,
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NULL,
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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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{
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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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{
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if (resolved_module_spec.GetFileSpec().Readable())
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{
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error.SetErrorStringWithFormat ("'%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(),
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arch_names.GetString().c_str());
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}
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else
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{
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error.SetErrorStringWithFormat("'%s' is not readable", resolved_module_spec.GetFileSpec().GetPath().c_str());
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}
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}
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}
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else
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{
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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, const FileSpec &file_spec)
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{
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if (file_type == FileSpec::eFileTypeDirectory)
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{
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const char *filename = file_spec.GetFilename().GetCString();
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if (filename && strncmp(filename, "AppleWatchSimulator", strlen ("AppleWatchSimulator")) == 0)
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{
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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 *
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PlatformAppleWatchSimulator::GetSDKDirectoryAsCString()
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{
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std::lock_guard<std::mutex> guard(m_mutex);
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if (m_sdk_directory.empty())
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{
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const char *developer_dir = GetDeveloperDirectory();
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if (developer_dir)
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{
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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,
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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,
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find_directories,
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find_files,
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find_other,
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EnumerateDirectoryCallback,
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sdk_dirname);
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if (sdk_dirname[0])
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{
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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
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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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{
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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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{
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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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{
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::snprintf (resolved_path,
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sizeof(resolved_path),
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"%s/%s",
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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 ("unable to locate a platform file for '%s' in platform '%s'",
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platform_file_path,
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GetPluginName().GetCString());
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}
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else
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{
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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
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PlatformAppleWatchSimulator::GetSharedModule (const ModuleSpec &module_spec,
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lldb_private::Process* process,
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ModuleSP &module_sp,
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const FileSpecList *module_search_paths_ptr,
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ModuleSP *old_module_sp_ptr,
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bool *did_create_ptr)
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{
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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(), platform_module_spec.GetFileSpec());
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if (error.Success())
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{
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error = ResolveExecutable (platform_module_spec, module_sp, module_search_paths_ptr);
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}
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else
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{
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const bool always_create = false;
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error = ModuleList::GetSharedModule (module_spec,
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module_sp,
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module_search_paths_ptr,
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old_module_sp_ptr,
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did_create_ptr,
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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
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PlatformAppleWatchSimulator::FindProcesses (const ProcessInstanceInfoMatch &match_info,
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ProcessInstanceInfoList &process_infos)
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{
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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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{
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const ProcessInstanceInfo &proc_info = all_osx_process_infos.GetProcessInfoAtIndex(i);
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if (proc_info.GetArchitecture().GetTriple().getOS() == 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
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PlatformAppleWatchSimulator::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch)
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{
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static const ArchSpec platform_arch(HostInfo::GetArchitecture(HostInfo::eArchKind64));
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if (idx == 0)
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{
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arch = platform_arch;
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if (arch.IsValid())
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{
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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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