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/* Target definitions for Darwin (Mac OS X) systems.

   Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004,

   2005, 2006, 2007, 2008, 2009, 2010, 2011

   Free Software Foundation, Inc.

   Contributed by Apple Computer Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

GCC is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

<http://www.gnu.org/licenses/>.  */

#ifndef CONFIG_DARWIN_H

#define CONFIG_DARWIN_H

/* The definitions in this file are common to all processor types

   running Darwin, which is the kernel for Mac OS X.  Darwin is

   basically a BSD user layer laid over a Mach kernel, then evolved

   for many years (at NeXT) in parallel with other Unix systems.  So

   while the runtime is a somewhat idiosyncratic Mach-based thing,

   other definitions look like they would for a BSD variant.  */

/* Although NeXT ran on many different architectures, as of Jan 2001

   the only supported Darwin targets are PowerPC and x86.  */

/* One of Darwin's NeXT legacies is the Mach-O format, which is partly

   like a.out and partly like COFF, with additional features like

   multi-architecture binary support.  */

#define DARWIN_X86 0

#define DARWIN_PPC 0

/* Don't assume anything about the header files.  */

#define NO_IMPLICIT_EXTERN_C

/* Suppress g++ attempt to link in the math library automatically. */

#define MATH_LIBRARY ""

/* We have atexit.  */

#define HAVE_ATEXIT

/* Define an empty body for the function do_global_dtors() in libgcc2.c.  */

#define DO_GLOBAL_DTORS_BODY

/* The string value for __SIZE_TYPE__.  */

#ifndef SIZE_TYPE

#define SIZE_TYPE "long unsigned int"

#endif

/* Type used for ptrdiff_t, as a string used in a declaration.  */

#undef  PTRDIFF_TYPE

#define PTRDIFF_TYPE "int"

/* wchar_t is int.  */

#undef  WCHAR_TYPE

#define WCHAR_TYPE "int"

#undef  WCHAR_TYPE_SIZE

#define WCHAR_TYPE_SIZE 32

#define INT8_TYPE "signed char"

#define INT16_TYPE "short int"

#define INT32_TYPE "int"

#define INT64_TYPE "long long int"

#define UINT8_TYPE "unsigned char"

#define UINT16_TYPE "short unsigned int"

#define UINT32_TYPE "unsigned int"

#define UINT64_TYPE "long long unsigned int"

#define INT_LEAST8_TYPE "signed char"

#define INT_LEAST16_TYPE "short int"

#define INT_LEAST32_TYPE "int"

#define INT_LEAST64_TYPE "long long int"

#define UINT_LEAST8_TYPE "unsigned char"

#define UINT_LEAST16_TYPE "short unsigned int"

#define UINT_LEAST32_TYPE "unsigned int"

#define UINT_LEAST64_TYPE "long long unsigned int"

#define INT_FAST8_TYPE "signed char"

#define INT_FAST16_TYPE "short int"

#define INT_FAST32_TYPE "int"

#define INT_FAST64_TYPE "long long int"

#define UINT_FAST8_TYPE "unsigned char"

#define UINT_FAST16_TYPE "short unsigned int"

#define UINT_FAST32_TYPE "unsigned int"

#define UINT_FAST64_TYPE "long long unsigned int"

#define INTPTR_TYPE "long int"

#define UINTPTR_TYPE "long unsigned int"

#define SIG_ATOMIC_TYPE "int"

/* Default to using the NeXT-style runtime, since that's what is

   pre-installed on Darwin systems.  */

#define NEXT_OBJC_RUNTIME 1

/* Don't default to pcc-struct-return, because gcc is the only compiler, and

   we want to retain compatibility with older gcc versions.  */

#undef  DEFAULT_PCC_STRUCT_RETURN

#define DEFAULT_PCC_STRUCT_RETURN 0

/* True if pragma ms_struct is in effect.  */

extern GTY(()) int darwin_ms_struct;

#define DRIVER_SELF_SPECS                                       \

  "%{gfull:-g -fno-eliminate-unused-debug-symbols} %<gfull",    \

  "%{gused:-g -feliminate-unused-debug-symbols} %<gused",       \

  "%{fapple-kext|mkernel:-static}",                             \

  "%{shared:-Zdynamiclib} %<shared"

#define DARWIN_CC1_SPEC                                                 \

  "%{findirect-virtual-calls: -fapple-kext} %<findirect-virtual-calls " \

  "%{fterminated-vtables: -fapple-kext} %<fterminated-vtables "         \

  "%<filelist* %<framework*"

#define SUBSUBTARGET_OVERRIDE_OPTIONS                                   \

  do {                                                                  \

    darwin_override_options ();                                         \

  } while (0)

#define SUBTARGET_C_COMMON_OVERRIDE_OPTIONS do {                        \

    if (!global_options_set.x_flag_objc_sjlj_exceptions)                \

      global_options.x_flag_objc_sjlj_exceptions =                      \

                                flag_next_runtime && !TARGET_64BIT;     \

    if (flag_mkernel || flag_apple_kext)                                \

      {                                                                 \

        if (flag_use_cxa_atexit == 2)                                   \

          flag_use_cxa_atexit = 0;                                       \

        /* kexts should always be built without the coalesced sections  \

           because the kernel loader doesn't grok such sections.  */    \

        flag_weak = 0;                                                   \

        /* No RTTI in kexts.  */                                        \

        flag_rtti = 0;                                                   \

      }                                                                 \

  } while (0)

/* Machine dependent cpp options.  Don't add more options here, add

   them to darwin_cpp_builtins in darwin-c.c.  */

#undef  CPP_SPEC

#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}" \

        " %{pthread:-D_REENTRANT}"

/* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus

   precomp, libtool, and fat build additions.

   In general, random Darwin linker flags should go into LINK_SPEC

   instead of LINK_COMMAND_SPEC.  The command spec is better for

   specifying the handling of options understood by generic Unix

   linkers, and for positional arguments like libraries.  */

#define LINK_COMMAND_SPEC_A \

   "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\

    %(linker)" \

    LINK_PLUGIN_SPEC \

    "%{flto*:%<fcompare-debug*} \

    %{flto*} \

    %l %X %{s} %{t} %{Z} %{u*} \

    %{e*} %{r} \

    %{o*}%{!o:-o a.out} \

    %{!nostdlib:%{!nostartfiles:%S}} \

    %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \

    %{fopenmp|ftree-parallelize-loops=*: \

      %{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \

    %{fgnu-tm: \

      %{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \

    %{!nostdlib:%{!nodefaultlibs:\

      %(link_ssp) %(link_gcc_c_sequence)\

    }}\

    %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"

#define DSYMUTIL "\ndsymutil"

#define DSYMUTIL_SPEC \

   "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\

    %{v} \

    %{gdwarf-2:%{!gstabs*:%{!g0: -idsym}}}\

    %{.c|.cc|.C|.cpp|.cp|.c++|.cxx|.CPP|.m|.mm: \

    %{gdwarf-2:%{!gstabs*:%{!g0: -dsym}}}}}}}}}}}"

#define LINK_COMMAND_SPEC LINK_COMMAND_SPEC_A DSYMUTIL_SPEC

/* Tell collect2 to run dsymutil for us as necessary.  */

#define COLLECT_RUN_DSYMUTIL 1

/* We only want one instance of %G, since libSystem (Darwin's -lc) does not depend

   on libgcc.  */

#undef  LINK_GCC_C_SEQUENCE_SPEC

#define LINK_GCC_C_SEQUENCE_SPEC "%G %L"

#ifdef TARGET_SYSTEM_ROOT

#define LINK_SYSROOT_SPEC \

  "%{isysroot*:-syslibroot %*;:-syslibroot " TARGET_SYSTEM_ROOT "}"

#else

#define LINK_SYSROOT_SPEC "%{isysroot*:-syslibroot %*}"

#endif

#define PIE_SPEC "%{fpie|pie|fPIE:}"

/* Please keep the random linker options in alphabetical order (modulo

   'Z' and 'no' prefixes). Note that options taking arguments may appear

   multiple times on a command line with different arguments each time,

   so put a * after their names so all of them get passed.  */

#define LINK_SPEC  \

  "%{static}%{!static:-dynamic} \

   %:remove-outfile(-ldl) \

   %:remove-outfile(-lm) \

   %:remove-outfile(-lpthread) \

   %{fgnu-runtime: %{static|static-libgcc: \

                     %:replace-outfile(-lobjc libobjc-gnu.a%s); \

                    :%:replace-outfile(-lobjc -lobjc-gnu ) } }\

   %{static|static-libgcc|static-libgfortran:%:replace-outfile(-lgfortran libgfortran.a%s)}\

   %{static|static-libgcc|static-libstdc++|static-libgfortran:%:replace-outfile(-lgomp libgomp.a%s)}\

   %{static|static-libgcc|static-libstdc++:%:replace-outfile(-lstdc++ libstdc++.a%s)}\

   %{!Zdynamiclib: \

     %{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \

     %{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \

     %{Zbundle:-bundle} \

     %{Zbundle_loader*:-bundle_loader %*} \

     %{client_name*} \

     %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\

} \

     %{current_version*:%e-current_version only allowed with -dynamiclib} \

     %{Zforce_flat_namespace:-force_flat_namespace} \

     %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \

     %{keep_private_externs} \

     %{private_bundle} \

    } \

   %{Zdynamiclib: -dylib \

     %{Zbundle:%e-bundle not allowed with -dynamiclib} \

     %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \

     %{client_name*:%e-client_name not allowed with -dynamiclib} \

     %{compatibility_version*:-dylib_compatibility_version %*} \

     %{current_version*:-dylib_current_version %*} \

     %{Zforce_cpusubtype_ALL:-arch %(darwin_arch)} \

     %{!Zforce_cpusubtype_ALL: -arch %(darwin_subarch)} \

     %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \

     %{Zinstall_name*:-dylib_install_name %*} \

     %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \

     %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \

    } \

   %{Zall_load:-all_load} \

   %{Zallowable_client*:-allowable_client %*} \

   %{Zbind_at_load:-bind_at_load} \

   %{Zarch_errors_fatal:-arch_errors_fatal} \

   %{Zdead_strip:-dead_strip} \

   %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \

   %{Zdylib_file*:-dylib_file %*} \

   %{Zdynamic:-dynamic}\

   %{Zexported_symbols_list*:-exported_symbols_list %*} \

   %{Zflat_namespace:-flat_namespace} \

   %{headerpad_max_install_names} \

   %{Zimage_base*:-image_base %*} \

   %{Zinit*:-init %*} \

   %{!mmacosx-version-min=*:-macosx_version_min %(darwin_minversion)} \

   %{mmacosx-version-min=*:-macosx_version_min %*} \

   %{nomultidefs} \

   %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \

   %{Zmultiply_defined*:-multiply_defined %*} \

   %{!Zmultiply_defined*:%{shared-libgcc: \

     %:version-compare(< 10.5 mmacosx-version-min= -multiply_defined) \

     %:version-compare(< 10.5 mmacosx-version-min= suppress)}} \

   %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \

   " PIE_SPEC " \

   %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \

   %{read_only_relocs} \

   %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \

   %{Zsegaddr*:-segaddr %*} \

   %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \

   %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \

   %{Zseg_addr_table*: -seg_addr_table %*} \

   %{Zfn_seg_addr_table_filename*:-seg_addr_table_filename %*} \

   %{sub_library*} %{sub_umbrella*} \

   " LINK_SYSROOT_SPEC " \

   %{twolevel_namespace} %{twolevel_namespace_hints} \

   %{Zumbrella*: -umbrella %*} \

   %{undefined*} \

   %{Zunexported_symbols_list*:-unexported_symbols_list %*} \

   %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \

   %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \

   %{X} \

   %{y*} \

   %{w} \

   %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit}  \

   %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \

   %{whatsloaded} %{dylinker_install_name*} \

   %{dylinker} %{Mach} "

/* Machine dependent libraries.  */

#define LIB_SPEC "%{!static:-lSystem}"

/* Support -mmacosx-version-min by supplying different (stub) libgcc_s.dylib

   libraries to link against, and by not linking against libgcc_s on

   earlier-than-10.3.9.

   Note that by default, -lgcc_eh is not linked against!  This is

   because in a future version of Darwin the EH frame information may

   be in a new format, or the fallback routine might be changed; if

   you want to explicitly link against the static version of those

   routines, because you know you don't need to unwind through system

   libraries, you need to explicitly say -static-libgcc.

   If it is linked against, it has to be before -lgcc, because it may

   need symbols from -lgcc.  */

#undef REAL_LIBGCC_SPEC

#define REAL_LIBGCC_SPEC                                                   \

   "%{static-libgcc|static: -lgcc_eh -lgcc;                                \

      shared-libgcc|fexceptions|fgnu-runtime:                              \

       %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4)        \

       %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5)   \

       %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4)      \

       %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5)      \

       -lgcc ;                                                             \

      :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \

       %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5)   \

       %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4)      \

       %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5)      \

       -lgcc }"

/* We specify crt0.o as -lcrt0.o so that ld will search the library path.

   crt3.o provides __cxa_atexit on systems that don't have it.  Since

   it's only used with C++, which requires passing -shared-libgcc, key

   off that to avoid unnecessarily adding a destructor to every

   powerpc program built.  */

#undef  STARTFILE_SPEC

#define STARTFILE_SPEC                                                      \

  "%{Zdynamiclib: %(darwin_dylib1) %{fgnu-tm: -lcrttms.o}}                  \

   %{!Zdynamiclib:%{Zbundle:%{!static:                                      \

        %:version-compare(< 10.6 mmacosx-version-min= -lbundle1.o)          \

        %{fgnu-tm: -lcrttms.o}}}                                            \

     %{!Zbundle:%{pg:%{static:-lgcrt0.o}                                    \

                     %{!static:%{object:-lgcrt0.o}                          \

                               %{!object:%{preload:-lgcrt0.o}               \

                                 %{!preload:-lgcrt1.o %(darwin_crt2)}}}}    \

                %{!pg:%{static:-lcrt0.o}                                    \

                      %{!static:%{object:-lcrt0.o}                          \

                                %{!object:%{preload:-lcrt0.o}               \

                                  %{!preload: %(darwin_crt1)                \

                                              %(darwin_crt2)}}}}}}          \

  %{shared-libgcc:%:version-compare(< 10.5 mmacosx-version-min= crt3.o%s)}"

/* We want a destructor last in the list.  */

#define ENDFILE_SPEC "%{fgnu-tm: -lcrttme.o}"

#define DARWIN_EXTRA_SPECS                                              \

  { "darwin_crt1", DARWIN_CRT1_SPEC },                                  \

  { "darwin_dylib1", DARWIN_DYLIB1_SPEC },                              \

  { "darwin_minversion", DARWIN_MINVERSION_SPEC },

#define DARWIN_DYLIB1_SPEC                                              \

  "%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o)           \

   %:version-compare(>< 10.5 10.6 mmacosx-version-min= -ldylib1.10.5.o)"

#define DARWIN_CRT1_SPEC                                                \

  "%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o)             \

   %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lcrt1.10.5.o)   \

   %:version-compare(>= 10.6 mmacosx-version-min= -lcrt1.10.6.o)        \

   %{fgnu-tm: -lcrttms.o}"

/* Default Darwin ASM_SPEC, very simple.  */

#define ASM_SPEC "-arch %(darwin_arch) \

  %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \

  %{static}"

/* Default ASM_DEBUG_SPEC.  Darwin's as cannot currently produce dwarf

   debugging data.  */

#define ASM_DEBUG_SPEC  "%{g*:%{!g0:%{!gdwarf*:--gstabs}}}"

/* We still allow output of STABS.  */

#define DBX_DEBUGGING_INFO 1

#define DWARF2_DEBUGGING_INFO 1

#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

#define DEBUG_FRAME_SECTION     "__DWARF,__debug_frame,regular,debug"

#define DEBUG_INFO_SECTION      "__DWARF,__debug_info,regular,debug"

#define DEBUG_ABBREV_SECTION    "__DWARF,__debug_abbrev,regular,debug"

#define DEBUG_ARANGES_SECTION   "__DWARF,__debug_aranges,regular,debug"

#define DEBUG_MACINFO_SECTION   "__DWARF,__debug_macinfo,regular,debug"

#define DEBUG_LINE_SECTION      "__DWARF,__debug_line,regular,debug"

#define DEBUG_LOC_SECTION       "__DWARF,__debug_loc,regular,debug"

#define DEBUG_PUBNAMES_SECTION  "__DWARF,__debug_pubnames,regular,debug"

#define DEBUG_PUBTYPES_SECTION  "__DWARF,__debug_pubtypes,regular,debug"

#define DEBUG_STR_SECTION       "__DWARF,__debug_str,regular,debug"

#define DEBUG_RANGES_SECTION    "__DWARF,__debug_ranges,regular,debug"

#define DEBUG_MACRO_SECTION    "__DWARF,__debug_macro,regular,debug"

#define TARGET_WANT_DEBUG_PUB_SECTIONS true

/* When generating stabs debugging, use N_BINCL entries.  */

#define DBX_USE_BINCL

/* There is no limit to the length of stabs strings.  */

#define DBX_CONTIN_LENGTH 0

/* gdb needs a null N_SO at the end of each file for scattered loading.  */

#define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END

/* GCC's definition of 'one_only' is the same as its definition of 'weak'.  */

#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)

/* Mach-O supports 'weak imports', and 'weak definitions' in coalesced

   sections.  machopic_select_section ensures that weak variables go in

   coalesced sections.  Weak aliases (or any other kind of aliases) are

   not supported.  Weak symbols that aren't visible outside the .s file

   are not supported.  */

#define ASM_WEAKEN_DECL(FILE, DECL, NAME, ALIAS)                        \

  do {                                                                  \

    if (ALIAS)                                                          \

      {                                                                 \

        warning (0, "alias definitions not supported in Mach-O; ignored");      \

        break;                                                          \

      }                                                                 \

                                                                        \

    if (! DECL_EXTERNAL (DECL) && TREE_PUBLIC (DECL))                   \

      targetm.asm_out.globalize_label (FILE, NAME);                     \

    if (DECL_EXTERNAL (DECL))                                           \

      fputs ("\t.weak_reference ", FILE);                               \

    else if (lookup_attribute ("weak_import", DECL_ATTRIBUTES (DECL)))  \

      break;                                                            \

    else if (TREE_PUBLIC (DECL))                                        \

      fputs ("\t.weak_definition ", FILE);                              \

    else                                                                \

      break;                                                            \

    assemble_name (FILE, NAME);                                         \

    fputc ('\n', FILE);                                                 \

  } while (0)

/* Darwin has the pthread routines in libSystem, which every program

   links to, so there's no need for weak-ness for that.  */

#define GTHREAD_USE_WEAK 0

/* The Darwin linker imposes two limitations on common symbols: they

   can't have hidden visibility, and they can't appear in dylibs.  As

   a consequence, we should never use common symbols to represent

   vague linkage. */

#undef USE_COMMON_FOR_ONE_ONLY

#define USE_COMMON_FOR_ONE_ONLY 0

/* The Darwin linker doesn't want coalesced symbols to appear in

   a static archive's table of contents. */

#undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC

#define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1

/* On Darwin, we don't (at the time of writing) have linkonce sections

   with names, so it's safe to make the class data not comdat.  */

#define TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT hook_bool_void_false

/* For efficiency, on Darwin the RTTI information that is always

   emitted in the standard C++ library should not be COMDAT.  */

#define TARGET_CXX_LIBRARY_RTTI_COMDAT hook_bool_void_false

/* We make exception information linkonce. */

#undef TARGET_USES_WEAK_UNWIND_INFO

#define TARGET_USES_WEAK_UNWIND_INFO 1

/* We need to use a nonlocal label for the start of an EH frame: the

   Darwin linker requires that a coalesced section start with a label.

   Unfortunately, it also requires that 'debug' sections don't contain

   labels.  */

#undef FRAME_BEGIN_LABEL

#define FRAME_BEGIN_LABEL (for_eh ? "EH_frame" : "Lframe")

/* Emit a label for the FDE corresponding to DECL.  EMPTY means

   emit a label for an empty FDE. */

#define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label

/* Emit a label to separate the exception table.  */

#define TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL darwin_emit_except_table_label

/* Our profiling scheme doesn't LP labels and counter words.  */

#define NO_PROFILE_COUNTERS     1

#undef  INIT_SECTION_ASM_OP

#define INIT_SECTION_ASM_OP

#undef  INVOKE__main

#define TARGET_ASM_CONSTRUCTOR  machopic_asm_out_constructor

#define TARGET_ASM_DESTRUCTOR   machopic_asm_out_destructor

/* Always prefix with an underscore.  */

#define USER_LABEL_PREFIX "_"

/* A dummy symbol that will be replaced with the function base name.  */

#define MACHOPIC_FUNCTION_BASE_NAME "<pic base>"

/* Don't output a .file directive.  That is only used by the assembler for

   error reporting.  */

#undef  TARGET_ASM_FILE_START_FILE_DIRECTIVE

#define TARGET_ASM_FILE_START_FILE_DIRECTIVE false

#undef  TARGET_ASM_FILE_END

#define TARGET_ASM_FILE_END darwin_file_end

/* Because Mach-O relocations have a counter from 1 to 255 for the

   section number they apply to, it is necessary to output all

   normal sections before the LTO sections, to make sure that the

   sections that may have relocations always have a section number

   smaller than 255.  */

#undef  TARGET_ASM_LTO_START

#define TARGET_ASM_LTO_START darwin_asm_lto_start

#undef  TARGET_ASM_LTO_END

#define TARGET_ASM_LTO_END darwin_asm_lto_end

#define ASM_OUTPUT_SKIP(FILE,SIZE)  \

  fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)

/* Give ObjC methods pretty symbol names.  */

#undef  OBJC_GEN_METHOD_LABEL

#define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \

  do { if (CAT_NAME)                                                    \

         sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+',          \

                  (CLASS_NAME), (CAT_NAME), (SEL_NAME));                \

       else                                                             \

         sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+',              \

                  (CLASS_NAME), (SEL_NAME));                            \

     } while (0)

#undef ASM_DECLARE_OBJECT_NAME

#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \

        darwin_asm_declare_object_name ((FILE), (NAME), (DECL))

/* The RTTI data (e.g., __ti4name) is common and public (and static),

   but it does need to be referenced via indirect PIC data pointers.

   The machopic_define_symbol calls are telling the machopic subsystem

   that the name *is* defined in this module, so it doesn't need to

   make them indirect.  */

#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \

  do {                                                                  \

    const char *xname = NAME;                                           \

    if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF)             \

      xname = IDENTIFIER_POINTER (DECL_NAME (DECL));                    \

    if (! DECL_WEAK (DECL)                                              \

        && ((TREE_STATIC (DECL)                                         \

             && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))           \

            || DECL_INITIAL (DECL)))                                    \

        machopic_define_symbol (DECL_RTL (DECL));                       \

    if ((TREE_STATIC (DECL)                                             \

         && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL)))               \

        || DECL_INITIAL (DECL))                                         \

      (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false);   \

    ASM_OUTPUT_FUNCTION_LABEL (FILE, xname, DECL);                      \

  } while (0)

#undef TARGET_ASM_DECLARE_CONSTANT_NAME

#define TARGET_ASM_DECLARE_CONSTANT_NAME darwin_asm_declare_constant_name

/* Wrap new method names in quotes so the assembler doesn't gag.

   Make Objective-C internal symbols local and in doing this, we need

   to accommodate the name mangling done by c++ on file scope locals.  */

int darwin_label_is_anonymous_local_objc_name (const char *name);

#undef  ASM_OUTPUT_LABELREF

#define ASM_OUTPUT_LABELREF(FILE,NAME)                                       \

  do {                                                                       \

       const char *xname = (NAME);                                           \

       if (! strcmp (xname, MACHOPIC_FUNCTION_BASE_NAME))                    \

         machopic_output_function_base_name(FILE);                           \

       else if (xname[0] == '&' || xname[0] == '*')                          \

         {                                                                   \

           int len = strlen (xname);                                         \

           if (len > 6 && !strcmp ("$stub", xname + len - 5))                \

             machopic_validate_stub_or_non_lazy_ptr (xname);                 \

           else if (len > 7 && !strcmp ("$stub\"", xname + len - 6))         \

             machopic_validate_stub_or_non_lazy_ptr (xname);                 \

           else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \

             machopic_validate_stub_or_non_lazy_ptr (xname);                 \

           else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \

             machopic_validate_stub_or_non_lazy_ptr (xname);                 \

           if (xname[1] != '"' && name_needs_quotes (&xname[1]))             \

             fprintf (FILE, "\"%s\"", &xname[1]);                            \

           else                                                              \

             fputs (&xname[1], FILE);                                        \

         }                                                                   \

       else if (xname[0] == '+' || xname[0] == '-')                            \

         fprintf (FILE, "\"%s\"", xname);                                    \

       else if (darwin_label_is_anonymous_local_objc_name (xname))           \

         fprintf (FILE, "L%s", xname);                                       \

       else if (!strncmp (xname, ".objc_class_name_", 17))                   \

         fprintf (FILE, "%s", xname);                                        \

       else if (xname[0] != '"' && name_needs_quotes (xname))                 \

         asm_fprintf (FILE, "\"%U%s\"", xname);                              \

       else                                                                  \

         asm_fprintf (FILE, "%U%s", xname);                                  \

  } while (0)

/* Output before executable code.  */

#undef TEXT_SECTION_ASM_OP

#define TEXT_SECTION_ASM_OP "\t.text"

/* Output before writable data.  */

#undef DATA_SECTION_ASM_OP

#define DATA_SECTION_ASM_OP "\t.data"

#undef  ALIGN_ASM_OP

#define ALIGN_ASM_OP            ".align"

#undef  ASM_OUTPUT_ALIGN

#define ASM_OUTPUT_ALIGN(FILE,LOG)      \

  if ((LOG) != 0)                        \

    fprintf (FILE, "\t%s\t%d\n", ALIGN_ASM_OP, (LOG))

/* The maximum alignment which the object file format can support in

   bits.  For Mach-O, this is 2^15 bytes.  */

#undef  MAX_OFILE_ALIGNMENT

#define MAX_OFILE_ALIGNMENT (0x8000 * 8)

#define L2_MAX_OFILE_ALIGNMENT 15

/*  These are the three variants that emit referenced blank space.  */

#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN)           \

        darwin_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))

#undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL

#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)    \

        darwin_asm_output_aligned_decl_local                            \

                                  ((FILE), (DECL), (NAME), (SIZE), (ALIGN))

#undef  ASM_OUTPUT_ALIGNED_DECL_COMMON

#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN)   \

        darwin_asm_output_aligned_decl_common                           \

                                   ((FILE), (DECL), (NAME), (SIZE), (ALIGN))

/* The generic version, archs should over-ride where required.  */

#define MACHOPIC_NL_SYMBOL_PTR_SECTION ".non_lazy_symbol_pointer"

/* Declare the section variables.  */

#ifndef USED_FOR_TARGET

enum darwin_section_enum {

#define DEF_SECTION(NAME, FLAGS, DIRECTIVE, OBJC) NAME,

#include "darwin-sections.def"

#undef DEF_SECTION

  NUM_DARWIN_SECTIONS

};

extern GTY(()) section * darwin_sections[NUM_DARWIN_SECTIONS];

#endif

#undef  TARGET_ASM_SELECT_SECTION

#define TARGET_ASM_SELECT_SECTION machopic_select_section

#undef  TARGET_ASM_FUNCTION_SECTION

#define TARGET_ASM_FUNCTION_SECTION darwin_function_section

#undef  TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS

#define TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS \

        darwin_function_switched_text_sections

#undef  TARGET_ASM_SELECT_RTX_SECTION

#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section

#undef  TARGET_ASM_UNIQUE_SECTION

#define TARGET_ASM_UNIQUE_SECTION darwin_unique_section

#undef  TARGET_ASM_FUNCTION_RODATA_SECTION

#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section

#undef  TARGET_ASM_TM_CLONE_TABLE_SECTION

#define TARGET_ASM_TM_CLONE_TABLE_SECTION darwin_tm_clone_table_section

#undef  TARGET_ASM_RELOC_RW_MASK

#define TARGET_ASM_RELOC_RW_MASK machopic_reloc_rw_mask

#define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME)                     \

    do {                                                                \

         if (FILE) {                                                    \

           if (MACHOPIC_INDIRECT)                                       \

             fprintf (FILE, "\t.lazy_reference ");                      \

           else                                                         \

             fprintf (FILE, "\t.reference ");                           \

           assemble_name (FILE, NAME);                                  \

           fprintf (FILE, "\n");                                        \

         }                                                              \

       } while (0)

#define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME)                          \

    do {                                                                \

         if (FILE) {                                                    \

           fprintf (FILE, "\t");                                        \

           assemble_name (FILE, NAME);                                  \

           fprintf (FILE, "=0\n");                                      \

           (*targetm.asm_out.globalize_label) (FILE, NAME);             \

         }                                                              \

       } while (0)

/* Globalizing directive for a label.  */

#define GLOBAL_ASM_OP "\t.globl "

#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label

/* Emit an assembler directive to set visibility for a symbol.  Used

   to support visibility attribute and Darwin's private extern

   feature.  */

#undef TARGET_ASM_ASSEMBLE_VISIBILITY

#define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility

/* Extra attributes for Darwin.  */

#define SUBTARGET_ATTRIBUTE_TABLE                                            \

  /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler,     \

       affects_type_identity } */                                                    \

  { "apple_kext_compatibility", 0, 0, false, true, false,              \

    darwin_handle_kext_attribute, false },                                   \

  { "weak_import", 0, 0, true, false, false,                                   \

    darwin_handle_weak_import_attribute, false }

#undef ASM_GENERATE_INTERNAL_LABEL

#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \

  sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))

#undef TARGET_ASM_MARK_DECL_PRESERVED

#define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved

/* Set on a symbol with SYMBOL_FLAG_FUNCTION or

   MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or

   variable has been defined in this translation unit.

   When porting Mach-O to new architectures you need to make

   sure these aren't clobbered by the backend.  */

#define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)

#define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)

/* Set on a symbol to indicate when fix-and-continue style code

   generation is being used and the symbol refers to a static symbol

   that should be rebound from new instances of a translation unit to

   the original instance of the data.  */

#define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)

/* Symbolic names for various things we might know about a symbol.  */

enum machopic_addr_class {

  MACHOPIC_UNDEFINED,

  MACHOPIC_DEFINED_DATA,

  MACHOPIC_UNDEFINED_DATA,

  MACHOPIC_DEFINED_FUNCTION,

  MACHOPIC_UNDEFINED_FUNCTION

};

/* Macros defining the various PIC cases.  */

#undef  MACHO_DYNAMIC_NO_PIC_P

#define MACHO_DYNAMIC_NO_PIC_P  (TARGET_MACHO_DYNAMIC_NO_PIC)

#undef  MACHOPIC_INDIRECT

#define MACHOPIC_INDIRECT       (flag_pic || MACHO_DYNAMIC_NO_PIC_P)

#define MACHOPIC_JUST_INDIRECT  (MACHO_DYNAMIC_NO_PIC_P)

#undef  MACHOPIC_PURE

#define MACHOPIC_PURE           (flag_pic && ! MACHO_DYNAMIC_NO_PIC_P)

#undef TARGET_ENCODE_SECTION_INFO

#define TARGET_ENCODE_SECTION_INFO  darwin_encode_section_info

#undef TARGET_STRIP_NAME_ENCODING

#define TARGET_STRIP_NAME_ENCODING  default_strip_name_encoding

#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH)          \

  do {                                                          \

    const char *const stub_ = (STUB);                           \

    char *buffer_ = (BUF);                                      \

    strcpy (buffer_, stub_);                                    \

    if (stub_[0] == '"')                                 \

      {                                                         \

        strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\"");      \

      }                                                         \

    else                                                        \

      {                                                         \