forked from OSchip/llvm-project
490 lines
18 KiB
C++
490 lines
18 KiB
C++
//===-- PlatformRemoteiOS.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 "PlatformRemoteiOS.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/Module.h"
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#include "lldb/Core/ModuleList.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/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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PlatformRemoteiOS::Initialize ()
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{
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if (g_initialize_count++ == 0)
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{
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PluginManager::RegisterPlugin (PlatformRemoteiOS::GetShortPluginNameStatic(),
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PlatformRemoteiOS::GetDescriptionStatic(),
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PlatformRemoteiOS::CreateInstance);
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}
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}
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void
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PlatformRemoteiOS::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 (PlatformRemoteiOS::CreateInstance);
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}
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}
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}
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Platform*
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PlatformRemoteiOS::CreateInstance ()
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{
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return new PlatformRemoteiOS ();
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}
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const char *
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PlatformRemoteiOS::GetPluginNameStatic ()
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{
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return "PlatformRemoteiOS";
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}
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const char *
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PlatformRemoteiOS::GetShortPluginNameStatic()
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{
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return "remote-ios";
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}
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const char *
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PlatformRemoteiOS::GetDescriptionStatic()
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{
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return "Remote iOS 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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PlatformRemoteiOS::PlatformRemoteiOS () :
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PlatformDarwin (false), // This is a remote platform
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m_device_support_directory (),
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m_device_support_directory_for_os_version ()
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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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PlatformRemoteiOS::~PlatformRemoteiOS()
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{
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}
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void
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PlatformRemoteiOS::GetStatus (Stream &strm)
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{
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Platform::GetStatus (strm);
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const char *sdk_directory = GetDeviceSupportDirectoryForOSVersion();
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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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PlatformRemoteiOS::ResolveExecutable (const FileSpec &exe_file,
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const ArchSpec &exe_arch,
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lldb::ModuleSP &exe_module_sp)
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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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FileSpec resolved_exe_file (exe_file);
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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_exe_file);
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if (resolved_exe_file.Exists())
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{
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if (exe_arch.IsValid())
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{
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error = ModuleList::GetSharedModule (resolved_exe_file,
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exe_arch,
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NULL,
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NULL,
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0,
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exe_module_sp,
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NULL,
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NULL);
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if (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, platform_arch); ++idx)
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{
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error = ModuleList::GetSharedModule (resolved_exe_file,
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platform_arch,
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NULL,
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NULL,
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0,
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exe_module_sp,
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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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if (error.Fail() || !exe_module_sp)
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{
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error.SetErrorStringWithFormat ("'%s%s%s' doesn't contain any '%s' platform architectures: %s",
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exe_file.GetDirectory().AsCString(""),
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exe_file.GetDirectory() ? "/" : "",
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exe_file.GetFilename().AsCString(""),
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GetShortPluginName(),
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arch_names.GetString().c_str());
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}
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}
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else
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{
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error.SetErrorStringWithFormat ("'%s%s%s' does not exist",
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exe_file.GetDirectory().AsCString(""),
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exe_file.GetDirectory() ? "/" : "",
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exe_file.GetFilename().AsCString(""));
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}
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return error;
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}
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const char *
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PlatformRemoteiOS::GetDeviceSupportDirectory()
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{
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if (m_device_support_directory.empty())
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{
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bool developer_dir_path_valid = false;
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char developer_dir_path[PATH_MAX];
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FileSpec temp_file_spec;
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if (Host::GetLLDBPath (ePathTypeLLDBShlibDir, temp_file_spec))
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{
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if (temp_file_spec.GetPath (developer_dir_path, sizeof(developer_dir_path)))
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{
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char *lib_priv_frameworks = strstr (developer_dir_path, "/Library/PrivateFrameworks/LLDB.framework");
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if (lib_priv_frameworks)
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{
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*lib_priv_frameworks = '\0';
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developer_dir_path_valid = true;
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}
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}
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}
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if (!developer_dir_path_valid)
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{
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std::string xcode_dir_path;
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const char *xcode_select_prefix_dir = getenv ("XCODE_SELECT_PREFIX_DIR");
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if (xcode_select_prefix_dir)
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xcode_dir_path.append (xcode_select_prefix_dir);
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xcode_dir_path.append ("/usr/share/xcode-select/xcode_dir_path");
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temp_file_spec.SetFile(xcode_dir_path.c_str(), false);
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size_t bytes_read = temp_file_spec.ReadFileContents(0, developer_dir_path, sizeof(developer_dir_path));
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if (bytes_read > 0)
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{
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developer_dir_path[bytes_read] = '\0';
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while (developer_dir_path[bytes_read-1] == '\r' ||
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developer_dir_path[bytes_read-1] == '\n')
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developer_dir_path[--bytes_read] = '\0';
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developer_dir_path_valid = true;
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}
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}
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if (developer_dir_path_valid)
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{
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temp_file_spec.SetFile (developer_dir_path, false);
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if (temp_file_spec.Exists())
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{
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m_device_support_directory.assign (developer_dir_path);
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return m_device_support_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_device_support_directory.assign (1, '\0');
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}
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// We should have put a single NULL character into m_device_support_directory
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// or it should have a valid path if the code gets here
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assert (m_device_support_directory.empty() == false);
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if (m_device_support_directory[0])
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return m_device_support_directory.c_str();
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return NULL;
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}
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const char *
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PlatformRemoteiOS::GetDeviceSupportDirectoryForOSVersion()
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{
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if (m_sdk_sysroot)
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return m_sdk_sysroot.GetCString();
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if (m_device_support_directory_for_os_version.empty())
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{
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const char *device_support_dir = GetDeviceSupportDirectory();
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const bool resolve_path = true;
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if (device_support_dir)
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{
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m_device_support_directory_for_os_version.assign (device_support_dir);
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m_device_support_directory_for_os_version.append ("/Platforms/iPhoneOS.platform/DeviceSupport");
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uint32_t major = 0;
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uint32_t minor = 0;
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uint32_t update = 0;
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FileSpec file_spec;
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char resolved_path[PATH_MAX];
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if (GetOSVersion(major, minor, update))
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{
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if (major != UINT32_MAX && minor != UINT32_MAX && update != UINT32_MAX)
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{
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::snprintf (resolved_path,
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sizeof(resolved_path),
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"%s/%i.%i.%i",
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m_device_support_directory_for_os_version.c_str(),
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major,
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minor,
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update);
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file_spec.SetFile(resolved_path, resolve_path);
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if (file_spec.Exists() && file_spec.GetPath(resolved_path, sizeof(resolved_path)))
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{
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m_device_support_directory_for_os_version.assign (resolved_path);
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return m_device_support_directory_for_os_version.c_str();
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}
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}
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if (major != UINT32_MAX && minor != UINT32_MAX)
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{
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::snprintf (resolved_path,
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sizeof(resolved_path),
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"%s/%i.%i",
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m_device_support_directory_for_os_version.c_str(),
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major,
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minor);
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file_spec.SetFile(resolved_path, resolve_path);
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if (file_spec.Exists() && file_spec.GetPath(resolved_path, sizeof(resolved_path)))
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{
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m_device_support_directory_for_os_version.assign (resolved_path);
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return m_device_support_directory_for_os_version.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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// Use the default as we have no OS version selected
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m_device_support_directory_for_os_version.append ("/Latest");
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file_spec.SetFile(m_device_support_directory_for_os_version.c_str(), resolve_path);
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if (file_spec.Exists() && file_spec.GetPath(resolved_path, sizeof(resolved_path)))
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{
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if (m_major_os_version == UINT32_MAX)
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{
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const char *resolved_latest_dirname = file_spec.GetFilename().GetCString();
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const char *pos = Args::StringToVersion (resolved_latest_dirname,
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m_major_os_version,
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m_minor_os_version,
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m_update_os_version);
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if (m_build_update.empty() && pos[0] == ' ' && pos[1] == '(')
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{
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const char *end_paren = strchr (pos + 2, ')');
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m_build_update.assign (pos + 2, end_paren);
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}
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}
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m_device_support_directory_for_os_version.assign (resolved_path);
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return m_device_support_directory_for_os_version.c_str();
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}
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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_device_support_directory_for_os_version.assign (1, '\0');
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}
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// We should have put a single NULL character into m_device_support_directory_for_os_version
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// or it should have a valid path if the code gets here
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assert (m_device_support_directory_for_os_version.empty() == false);
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if (m_device_support_directory_for_os_version[0])
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return m_device_support_directory_for_os_version.c_str();
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return NULL;
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}
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Error
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PlatformRemoteiOS::GetFile (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 * os_version_dir = GetDeviceSupportDirectoryForOSVersion();
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if (os_version_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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os_version_dir,
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platform_file_path);
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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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::snprintf (resolved_path,
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sizeof(resolved_path),
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"%s/Symbols.Internal/%s",
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os_version_dir,
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platform_file_path);
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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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::snprintf (resolved_path,
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sizeof(resolved_path),
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"%s/Symbols/%s",
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os_version_dir,
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platform_file_path);
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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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}
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local_file = platform_file;
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if (local_file.Exists())
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return error;
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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());
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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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PlatformRemoteiOS::GetSharedModule (const FileSpec &platform_file,
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const ArchSpec &arch,
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const UUID *uuid_ptr,
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const ConstString *object_name_ptr,
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off_t object_offset,
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ModuleSP &module_sp,
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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 iOS, 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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FileSpec local_file;
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error = GetFile (platform_file, uuid_ptr, local_file);
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if (error.Success())
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{
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error = ResolveExecutable (local_file, arch, module_sp);
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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 (platform_file,
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arch,
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uuid_ptr,
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object_name_ptr,
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object_offset,
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module_sp,
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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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PlatformRemoteiOS::FindProcesses (const ProcessInstanceInfoMatch &match_info,
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ProcessInstanceInfoList &process_infos)
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{
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// TODO: if connected, send a packet to get the remote process infos by name
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process_infos.Clear();
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return 0;
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}
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bool
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PlatformRemoteiOS::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info)
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{
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// TODO: if connected, send a packet to get the remote process info
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process_info.Clear();
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return false;
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}
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bool
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PlatformRemoteiOS::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch)
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{
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return ARMGetSupportedArchitectureAtIndex (idx, arch);
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}
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