//===-- PlatformDarwin.h ----------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_PlatformDarwin_h_
#define liblldb_PlatformDarwin_h_

// C Includes
// C++ Includes
#include <string>

// Other libraries and framework includes
// Project includes
#include "lldb/Host/FileSpec.h"
#include "Plugins/Platform/POSIX/PlatformPOSIX.h"

class PlatformDarwin : public PlatformPOSIX
{
public:
    PlatformDarwin(bool is_host);

    ~PlatformDarwin() override;

    //------------------------------------------------------------
    // lldb_private::Platform functions
    //------------------------------------------------------------
    lldb_private::Error
    ResolveExecutable (const lldb_private::ModuleSpec &module_spec,
                       lldb::ModuleSP &module_sp,
                       const lldb_private::FileSpecList *module_search_paths_ptr) override;

    lldb_private::Error
    ResolveSymbolFile (lldb_private::Target &target,
                       const lldb_private::ModuleSpec &sym_spec,
                       lldb_private::FileSpec &sym_file) override;

    lldb_private::FileSpecList
    LocateExecutableScriptingResources (lldb_private::Target *target,
                                        lldb_private::Module &module,
                                        lldb_private::Stream* feedback_stream) override;

    lldb_private::Error
    GetSharedModule (const lldb_private::ModuleSpec &module_spec,
                     lldb_private::Process* process,
                     lldb::ModuleSP &module_sp,
                     const lldb_private::FileSpecList *module_search_paths_ptr,
                     lldb::ModuleSP *old_module_sp_ptr,
                     bool *did_create_ptr) override;

    size_t
    GetSoftwareBreakpointTrapOpcode (lldb_private::Target &target, 
                                     lldb_private::BreakpointSite *bp_site) override;

    bool
    GetProcessInfo (lldb::pid_t pid, 
                    lldb_private::ProcessInstanceInfo &proc_info) override;
    
    lldb::BreakpointSP
    SetThreadCreationBreakpoint (lldb_private::Target &target) override;

    uint32_t
    FindProcesses (const lldb_private::ProcessInstanceInfoMatch &match_info,
                   lldb_private::ProcessInstanceInfoList &process_infos) override;

    bool
    ModuleIsExcludedForUnconstrainedSearches(lldb_private::Target &target,
						 const lldb::ModuleSP &module_sp) override;

    bool
    ARMGetSupportedArchitectureAtIndex (uint32_t idx, lldb_private::ArchSpec &arch);
    
    bool 
    x86GetSupportedArchitectureAtIndex (uint32_t idx, lldb_private::ArchSpec &arch);
    
    int32_t
    GetResumeCountForLaunchInfo (lldb_private::ProcessLaunchInfo &launch_info) override;

    void
    CalculateTrapHandlerSymbolNames () override;
    
    bool
    GetOSVersion (uint32_t &major,
                  uint32_t &minor,
                  uint32_t &update,
                  lldb_private::Process *process = nullptr) override;

    bool
    SupportsModules () override { return true; }
    
    lldb_private::ConstString
    GetFullNameForDylib (lldb_private::ConstString basename) override;

    lldb_private::FileSpec
    LocateExecutable (const char *basename) override;

protected:
    void
    ReadLibdispatchOffsetsAddress (lldb_private::Process *process);

    void
    ReadLibdispatchOffsets (lldb_private::Process *process);

    virtual lldb_private::Error
    GetSharedModuleWithLocalCache (const lldb_private::ModuleSpec &module_spec,
                                   lldb::ModuleSP &module_sp,
                                   const lldb_private::FileSpecList *module_search_paths_ptr,
                                   lldb::ModuleSP *old_module_sp_ptr,
                                   bool *did_create_ptr);

    enum class SDKType {
        MacOSX = 0,
        iPhoneSimulator,
        iPhoneOS,
    };
    
    static bool
    SDKSupportsModules (SDKType sdk_type, uint32_t major, uint32_t minor, uint32_t micro);
    
    static bool
    SDKSupportsModules (SDKType desired_type, const lldb_private::FileSpec &sdk_path);
    
    struct SDKEnumeratorInfo {
        lldb_private::FileSpec  found_path;
        SDKType                 sdk_type;
    };
    
    static lldb_private::FileSpec::EnumerateDirectoryResult
    DirectoryEnumerator(void *baton,
                        lldb_private::FileSpec::FileType file_type,
                        const lldb_private::FileSpec &spec);
    
    static lldb_private::FileSpec
    FindSDKInXcodeForModules (SDKType sdk_type,
                              const lldb_private::FileSpec &sdks_spec);

    static lldb_private::FileSpec
    GetSDKDirectoryForModules (PlatformDarwin::SDKType sdk_type);

    void
    AddClangModuleCompilationOptionsForSDKType (lldb_private::Target *target, std::vector<std::string> &options, SDKType sdk_type);

    std::string                 m_developer_directory;

    const char *
    GetDeveloperDirectory();
    
private:
    DISALLOW_COPY_AND_ASSIGN (PlatformDarwin);
};

#endif // liblldb_PlatformDarwin_h_