like a.out and partly like COFF, with additional features like
multi-architecture binary support. */
-#define OBJECT_FORMAT_MACHO
+#define DARWIN_X86 0
+#define DARWIN_PPC 0
/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C
/* True if pragma ms_struct is in effect. */
extern GTY(()) int darwin_ms_struct;
-/* This table intercepts weirdo options whose names would interfere
- with normal driver conventions, and either translates them into
- standardly-named options, or adds a 'Z' so that they can get to
- specs processing without interference.
-
- Do not expand a linker option to "-Xlinker -<option>", since that
- forfeits the ability to control via spec strings later. However,
- as a special exception, do this translation with -filelist, because
- otherwise the driver will think there are no input files and quit.
- (The alternative would be to hack the driver to recognize -filelist
- specially, but it's simpler to use the translation table.)
-
- Note that an option name with a prefix that matches another option
- name, that also takes an argument, needs to be modified so the
- prefix is different, otherwise a '*' after the shorter option will
- match with the longer one.
-
- The SUBTARGET_OPTION_TRANSLATE_TABLE macro, which _must_ be defined
- in gcc/config/{i386,rs6000}/darwin.h, should contain any additional
- command-line option translations specific to the particular target
- architecture. */
-
-#define TARGET_OPTION_TRANSLATE_TABLE \
- { "-all_load", "-Zall_load" }, \
- { "-allowable_client", "-Zallowable_client" }, \
- { "-arch_errors_fatal", "-Zarch_errors_fatal" }, \
- { "-bind_at_load", "-Zbind_at_load" }, \
- { "-bundle", "-Zbundle" }, \
- { "-bundle_loader", "-Zbundle_loader" }, \
- { "-weak_reference_mismatches", "-Zweak_reference_mismatches" }, \
- { "-dead_strip", "-Zdead_strip" }, \
- { "-no_dead_strip_inits_and_terms", "-Zno_dead_strip_inits_and_terms" }, \
- { "-dependency-file", "-MF" }, \
- { "-dylib_file", "-Zdylib_file" }, \
- { "-dynamic", "-Zdynamic" }, \
- { "-dynamiclib", "-Zdynamiclib" }, \
- { "-exported_symbols_list", "-Zexported_symbols_list" }, \
- { "-gfull", "-g -fno-eliminate-unused-debug-symbols" }, \
- { "-gused", "-g -feliminate-unused-debug-symbols" }, \
- { "-segaddr", "-Zsegaddr" }, \
- { "-segs_read_only_addr", "-Zsegs_read_only_addr" }, \
- { "-segs_read_write_addr", "-Zsegs_read_write_addr" }, \
- { "-seg_addr_table", "-Zseg_addr_table" }, \
- { "-seg_addr_table_filename", "-Zfn_seg_addr_table_filename" }, \
- { "-umbrella", "-Zumbrella" }, \
- { "-fapple-kext", "-fapple-kext -static -Wa,-static" }, \
- { "-filelist", "-Xlinker -filelist -Xlinker" }, \
- { "-findirect-virtual-calls", "-fapple-kext" }, \
- { "-flat_namespace", "-Zflat_namespace" }, \
- { "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" }, \
- { "-force_flat_namespace", "-Zforce_flat_namespace" }, \
- { "-framework", "-Xlinker -framework -Xlinker" }, \
- { "-fterminated-vtables", "-fapple-kext" }, \
- { "-image_base", "-Zimage_base" }, \
- { "-init", "-Zinit" }, \
- { "-install_name", "-Zinstall_name" }, \
- { "-mkernel", "-mkernel -static -Wa,-static" }, \
- { "-multiply_defined_unused", "-Zmultiplydefinedunused" }, \
- { "-multiply_defined", "-Zmultiply_defined" }, \
- { "-multi_module", "-Zmulti_module" }, \
- { "-static", "-static -Wa,-static" }, \
- { "-shared", "-Zdynamiclib" }, \
- { "-single_module", "-Zsingle_module" }, \
- { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
- SUBTARGET_OPTION_TRANSLATE_TABLE
+#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)
-/* These compiler options take n arguments. */
-
-#undef WORD_SWITCH_TAKES_ARG
-#define WORD_SWITCH_TAKES_ARG(STR) \
- (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 : \
- !strcmp (STR, "Zallowable_client") ? 1 : \
- !strcmp (STR, "arch") ? 1 : \
- !strcmp (STR, "arch_only") ? 1 : \
- !strcmp (STR, "Zbundle_loader") ? 1 : \
- !strcmp (STR, "client_name") ? 1 : \
- !strcmp (STR, "compatibility_version") ? 1 : \
- !strcmp (STR, "current_version") ? 1 : \
- !strcmp (STR, "Zdylib_file") ? 1 : \
- !strcmp (STR, "Zexported_symbols_list") ? 1 : \
- !strcmp (STR, "Zimage_base") ? 1 : \
- !strcmp (STR, "Zinit") ? 1 : \
- !strcmp (STR, "Zinstall_name") ? 1 : \
- !strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
- !strcmp (STR, "Zmultiply_defined") ? 1 : \
- !strcmp (STR, "precomp-trustfile") ? 1 : \
- !strcmp (STR, "read_only_relocs") ? 1 : \
- !strcmp (STR, "sectcreate") ? 3 : \
- !strcmp (STR, "sectorder") ? 3 : \
- !strcmp (STR, "Zsegaddr") ? 2 : \
- !strcmp (STR, "Zsegs_read_only_addr") ? 1 : \
- !strcmp (STR, "Zsegs_read_write_addr") ? 1 : \
- !strcmp (STR, "Zseg_addr_table") ? 1 : \
- !strcmp (STR, "Zfn_seg_addr_table_filename") ? 1 :\
- !strcmp (STR, "seg1addr") ? 1 : \
- !strcmp (STR, "segprot") ? 3 : \
- !strcmp (STR, "sub_library") ? 1 : \
- !strcmp (STR, "sub_umbrella") ? 1 : \
- !strcmp (STR, "Zumbrella") ? 1 : \
- !strcmp (STR, "undefined") ? 1 : \
- !strcmp (STR, "Zunexported_symbols_list") ? 1 : \
- !strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
- !strcmp (STR, "pagezero_size") ? 1 : \
- !strcmp (STR, "segs_read_only_addr") ? 1 : \
- !strcmp (STR, "segs_read_write_addr") ? 1 : \
- !strcmp (STR, "sectalign") ? 3 : \
- !strcmp (STR, "sectobjectsymbols") ? 2 : \
- !strcmp (STR, "segcreate") ? 3 : \
- !strcmp (STR, "dylinker_install_name") ? 1 : \
- !strcmp (STR, "iframework") ? 1 : \
- 0)
-
#define SUBTARGET_C_COMMON_OVERRIDE_OPTIONS do { \
if (flag_mkernel || flag_apple_kext) \
{ \
" %{pthread:-D_REENTRANT}"
/* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
- precomp, libtool, and fat build additions. Also we
- don't specify a second %G after %L because libSystem is
- self-contained and doesn't need to link against libgcc.a. */
-/* In general, random Darwin linker flags should go into LINK_SPEC
+ 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) %l %X %{d} %{s} %{t} %{Z} %{u*} \
- %{A} %{e*} %{m} %{r} %{x} \
+ %(linker) \
+ %{flto*:%<fcompare-debug*} \
+ %{flto*} \
+ %l %X %{s} %{t} %{Z} %{u*} \
+ %{e*} %{r} \
%{o*}%{!o:-o a.out} \
- %{!A:%{!nostdlib:%{!nostartfiles:%S}}} \
+ %{!nostdlib:%{!nostartfiles:%S}} \
%{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
- %{flto} %{fwhopr} \
%{fopenmp|ftree-parallelize-loops=*: \
%{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
- %{!nostdlib:%{!nodefaultlibs: %(link_ssp) %G %L }} \
- %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}\n"
+ %{!nostdlib:%{!nodefaultlibs:\
+ %(link_ssp) %(link_gcc_c_sequence)\
+ }}\
+ %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"
-#define DSYMUTIL "dsymutil"
+#define DSYMUTIL "\ndsymutil"
#define DSYMUTIL_SPEC \
"%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
#define LINK_COMMAND_SPEC LINK_COMMAND_SPEC_A DSYMUTIL_SPEC
+/* 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 "}"
/* Default Darwin ASM_SPEC, very simple. */
#define ASM_SPEC "-arch %(darwin_arch) \
- %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL}"
+ %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
+ %{static}"
/* We still allow output of STABS. */
(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. */
-#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_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_LABEL (FILE, xname); \
- /* Darwin doesn't support zero-size objects, so give them a \
- byte. */ \
- if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0) \
- assemble_zeros (1); \
- } while (0)
-
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do { \
const char *xname = NAME; \
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
#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
if ((LOG) != 0) \
- fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
-
-/* Ensure correct alignment of bss data. */
-
-#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
-#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
- do { \
- unsigned HOST_WIDE_INT _new_size = SIZE; \
- fputs ("\t.lcomm ", (FILE)); \
- assemble_name ((FILE), (NAME)); \
- if (_new_size == 0) _new_size = 1; \
- fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", _new_size, \
- floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
- if ((DECL) && ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL))) \
- { \
- (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
- machopic_define_symbol (DECL_RTL (DECL)); \
- } \
- } while (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"
+
+/* Private flag applied to disable section-anchors in a particular section.
+ This needs to be kept in sync with the flags used by varasm.c (defined in
+ output.h). */
+#define SECTION_NO_ANCHOR 0x2000000
+
/* Declare the section variables. */
#ifndef USED_FOR_TARGET
enum darwin_section_enum {
#undef TARGET_ASM_SELECT_SECTION
#define TARGET_ASM_SELECT_SECTION machopic_select_section
#define USE_SELECT_SECTION_FOR_FUNCTIONS
+#undef TARGET_ASM_FUNCTION_SECTION
+#define TARGET_ASM_FUNCTION_SECTION darwin_function_section
#undef TARGET_ASM_SELECT_RTX_SECTION
#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
/* Macros defining the various PIC cases. */
-#define MACHO_DYNAMIC_NO_PIC_P (TARGET_DYNAMIC_NO_PIC)
+#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
#undef TARGET_ASM_NAMED_SECTION
#define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
-/* Handle pragma weak and pragma pack. */
-#define HANDLE_SYSV_PRAGMA 1
-
-#define HANDLE_PRAGMA_PACK_PUSH_POP 1
-
#define DARWIN_REGISTER_TARGET_PRAGMAS() \
do { \
if (!flag_preprocess_only) \
#undef GOMP_SELF_SPECS
#define GOMP_SELF_SPECS ""
-/* Darwin can't support anchors until we can cope with the adjustments
- to size that ASM_DECLARE_OBJECT_NAME and ASM_DECLARE_CONSTANT_NAME
- when outputting members of an anchor block and the linker can be
- taught to keep them together or we find some other suitable
- code-gen technique. */
-
-#if 0
-#define TARGET_ASM_OUTPUT_ANCHOR darwin_asm_output_anchor
-#else
+/* Darwin disables section anchors by default.
+ They should be enabled per arch where support exists in that arch. */
#define TARGET_ASM_OUTPUT_ANCHOR NULL
-#endif
+#define DARWIN_SECTION_ANCHORS 0
/* Attempt to turn on execute permission for the stack. This may be
used by TARGET_TRAMPOLINE_INIT if the target needs it (that is,
/* For Apple KEXTs, we make the constructors return this to match gcc
2.95. */
#define TARGET_CXX_CDTOR_RETURNS_THIS (darwin_kextabi_p)
-extern int flag_mkernel;
-extern int flag_apple_kext;
#define TARGET_KEXTABI flag_apple_kext
+/* We have target-specific builtins. */
+#define TARGET_FOLD_BUILTIN darwin_fold_builtin
+
+#define TARGET_OBJC_CONSTRUCT_STRING_OBJECT \
+ darwin_objc_construct_string
+
+#define TARGET_STRING_OBJECT_REF_TYPE_P \
+ darwin_cfstring_ref_p
+
+#define TARGET_N_FORMAT_TYPES 1
+#define TARGET_FORMAT_TYPES darwin_additional_format_types
+
+#define TARGET_CHECK_STRING_OBJECT_FORMAT_ARG \
+ darwin_check_cfstring_format_arg
+
#define TARGET_HAS_TARGETCM 1
-#ifndef CROSS_DIRECTORY_STRUCTURE
-extern void darwin_default_min_version (int * argc, char *** argv);
+extern void darwin_driver_init (unsigned int *decoded_options_count,
+ struct cl_decoded_option **decoded_options);
#define GCC_DRIVER_HOST_INITIALIZATION \
- darwin_default_min_version (&argc, &argv)
-#endif /* CROSS_DIRECTORY_STRUCTURE */
+ darwin_driver_init (&decoded_options_count, &decoded_options)
/* The Apple assembler and linker do not support constructor priorities. */
#undef SUPPORTS_INIT_PRIORITY
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