/* Target definitions for Darwin (Mac OS X) systems.
- Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001
+ Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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 2, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+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.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
+along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#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
/* Although NeXT ran on many different architectures, as of Jan 2001
the only supported Darwin targets are PowerPC and x86. */
-/* Technically, STANDARD_EXEC_PREFIX should be /usr/libexec/, but in
- practice this makes it hard to install new compilers elsewhere, so
- leave it undefined and expect system builders to set configure args
- correctly. */
-
-/* Name of the command that invokes the compiler - used in g++.c. */
+/* 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. */
-#undef GCC_NAME
-#define GCC_NAME "cc"
+#define OBJECT_FORMAT_MACHO
-/* Never try linking with -lm - used in g++.c. */
+/* Suppress g++ attempt to link in the math library automatically.
+ (Some Darwin versions have a libm, but they seem to cause problems
+ for C++ executables.) */
-#define NO_MATH_LIBRARY
+#define MATH_LIBRARY ""
/* We have atexit. */
#undef DEFAULT_PCC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 0
-/* Don't warn about MacOS-style 'APPL' four-char-constants. */
-
-#undef WARN_FOUR_CHAR_CONSTANTS
-#define WARN_FOUR_CHAR_CONSTANTS 0
-
-/* Machine dependent cpp options. */
-
-/* The sequence here allows us to get a more specific version number
- glued into __APPLE_CC__. Normally this number would be updated as
- part of submitting to a release engineering organization. */
-
-#ifndef APPLE_CC
-#define APPLE_CC 999
-#endif
-
-#define STRINGIFY_THIS(x) # x
-#define REALLY_STRINGIFY(x) STRINGIFY_THIS(x)
+/* 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" }, \
+ { "-dependency-file", "-MF" }, \
+ { "-dylib_file", "-Zdylib_file" }, \
+ { "-dynamic", "-Zdynamic" }, \
+ { "-dynamiclib", "-Zdynamiclib" }, \
+ { "-exported_symbols_list", "-Zexported_symbols_list" }, \
+ { "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
+ { "-filelist", "-Xlinker -filelist -Xlinker" }, \
+ { "-framework", "-Xlinker -framework -Xlinker" }, \
+ { "-flat_namespace", "-Zflat_namespace" }, \
+ { "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" }, \
+ { "-force_flat_namespace", "-Zforce_flat_namespace" }, \
+ { "-image_base", "-Zimage_base" }, \
+ { "-init", "-Zinit" }, \
+ { "-install_name", "-Zinstall_name" }, \
+ { "-multiply_defined_unused", "-Zmultiplydefinedunused" }, \
+ { "-multiply_defined", "-Zmultiply_defined" }, \
+ { "-multi_module", "-Zmulti_module" }, \
+ { "-static", "-static -Wa,-static" }, \
+ { "-single_module", "-Zsingle_module" }, \
+ { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
+ SUBTARGET_OPTION_TRANSLATE_TABLE
+
+/* 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, "Zseg_addr_table_filename") ?1 :\
+ !strcmp (STR, "seg1addr") ? 1 : \
+ !strcmp (STR, "segprot") ? 3 : \
+ !strcmp (STR, "seg_addr_table") ? 1 : \
+ !strcmp (STR, "sub_library") ? 1 : \
+ !strcmp (STR, "sub_umbrella") ? 1 : \
+ !strcmp (STR, "umbrella") ? 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 : \
+ 0)
+
+/* Machine dependent cpp options. __APPLE_CC__ is defined as the
+ Apple include files expect it to be defined and won't work if it
+ isn't. */
#undef CPP_SPEC
-#define CPP_SPEC "-D__APPLE_CC__=" REALLY_STRINGIFY(APPLE_CC) " \
- %{static:-D__STATIC__}%{!static:-D__DYNAMIC__}"
+#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}\
+ -D__APPLE_CC__=1"
+
+/* 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
+ 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 "\
+%{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
+ %{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
+ %{!Zdynamiclib:-arch %(darwin_arch)} \
+ %{Zdynamiclib:-arch_only %(darwin_arch)} \
+ %l %X %{d} %{s} %{t} %{Z} \
+ %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
+ %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
+ %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
+ %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate:-lgcov} \
+ %{!nostdlib:%{!nodefaultlibs:%G %L}} \
+ %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} \
+ %{!--help:%{!no-c++filt|c++filt:| c++filt3 }} }}}}}}}}"
+
+/* Please keep the random linker options in alphabetical order (modulo
+ 'Z' and 'no' prefixes). Options that can only go to one of libtool
+ or ld must be listed twice, under both !Zdynamiclib and
+ Zdynamiclib, with one of the cases reporting an error. */
+/* 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} \
+ %{!Zdynamiclib: \
+ %{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_cpusubtype_ALL:-force_cpusubtype_ALL} \
+ %{Zforce_flat_namespace:-force_flat_namespace} \
+ %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
+ %{keep_private_externs} \
+ %{private_bundle} \
+ } \
+ %{Zdynamiclib: \
+ %{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*} \
+ %{current_version*} \
+ %{Zforce_cpusubtype_ALL:%e-force_cpusubtype_ALL not allowed with -dynamiclib} \
+ %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
+ %{Zinstall_name*:-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}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
+ %{Zallowable_client*:-allowable_client %*} \
+ %{Zbind_at_load:-bind_at_load} \
+ %{Zarch_errors_fatal:-arch_errors_fatal} \
+ %{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 %*} \
+ %{nomultidefs} \
+ %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
+ %{Zmultiply_defined*:-multiply_defined %*} \
+ %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
+ %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
+ %{read_only_relocs} \
+ %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} %{seg_addr_table*} \
+ %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
+ %{sub_library*} %{sub_umbrella*} \
+ %{twolevel_namespace} %{twolevel_namespace_hints} \
+ %{umbrella*} \
+ %{undefined*} \
+ %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
+ %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
+ %{X} \
+ %{y*} \
+ %{w} \
+ %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \
+ %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
+ %{whatsloaded} %{dylinker_install_name*} \
+ %{dylinker} %{Mach} "
+
/* Machine dependent libraries. */
#undef LIB_SPEC
#define LIB_SPEC "%{!static:-lSystem}"
-/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
+/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
-#undef STARTFILE_SPEC
+#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
- "%{pg:%{static:-lgcrt0.o}%{!static:-lgcrt1.o}} \
- %{!pg:%{static:-lcrt0.o}%{!static:-lcrt1.o}}"
-
-#undef DOLLARS_IN_IDENTIFIERS
-#define DOLLARS_IN_IDENTIFIERS 2
-
-/* Allow #sccs (but don't do anything). */
-
-#define SCCS_DIRECTIVE
+ "%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
+ %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
+ %{!static:%{object:-lgcrt0.o} \
+ %{!object:%{preload:-lgcrt0.o} \
+ %{!preload:-lgcrt1.o -lcrt2.o}}}} \
+ %{!pg:%{static:-lcrt0.o} \
+ %{!static:%{object:-lcrt0.o} \
+ %{!object:%{preload:-lcrt0.o} \
+ %{!preload:-lcrt1.o -lcrt2.o}}}}}}"
+
+/* The native Darwin linker doesn't necessarily place files in the order
+ that they're specified on the link line. Thus, it is pointless
+ to put anything in ENDFILE_SPEC. */
+/* #define ENDFILE_SPEC "" */
/* We use Dbx symbol format. */
-#define DBX_DEBUGGING_INFO
+#define DBX_DEBUGGING_INFO 1
/* When generating stabs debugging, use N_BINCL entries. */
#define DBX_CONTIN_LENGTH 0
-/* gdb needs a null N_SO at the end of each file for scattered loading. */
+/* gdb needs a null N_SO at the end of each file for scattered loading. */
#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
/* Our profiling scheme doesn't LP labels and counter words. */
-#define NO_PROFILE_COUNTERS
-
-/* Don't use .gcc_compiled symbols to communicate with GDB;
- They interfere with numerically sorted symbol lists. */
-
-#undef ASM_IDENTIFY_GCC
-#define ASM_IDENTIFY_GCC(asm_out_file)
+#define NO_PROFILE_COUNTERS 1
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP
#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 "_"
/* 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 ASM_FILE_START
-#define ASM_FILE_START(FILE)
+#undef TARGET_ASM_FILE_END
+#define TARGET_ASM_FILE_END darwin_file_end
-#undef ASM_FILE_END
-#define ASM_FILE_END(FILE) \
- do { \
- machopic_finish (asm_out_file); \
- if (strcmp (language_string, "GNU C++") == 0) \
- { \
- constructor_section (); \
- destructor_section (); \
- ASM_OUTPUT_ALIGN (FILE, 1); \
- } \
- } while (0)
+#define ASM_OUTPUT_SKIP(FILE,SIZE) \
+ fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
-/* Give ObjcC methods pretty symbol names. */
+/* 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) \
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do { \
- char *xname = NAME; \
- if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
- xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
- if ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL)) \
- machopic_define_name (xname); \
- if ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL)) \
- ENCODE_SECTION_INFO (DECL); \
- ASM_OUTPUT_LABEL (FILE, xname); \
+ const char *xname = NAME; \
+ if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
+ xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
+ if ((TREE_STATIC (DECL) \
+ && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
+ || DECL_INITIAL (DECL)) \
+ machopic_define_name (xname); \
+ 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 { \
- char *xname = NAME; \
+ const char *xname = NAME; \
if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
if ((TREE_STATIC (DECL) \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
- ENCODE_SECTION_INFO (DECL); \
+ (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
ASM_OUTPUT_LABEL (FILE, xname); \
} while (0)
+#define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE) \
+ do { \
+ ASM_OUTPUT_LABEL (FILE, NAME); \
+ /* Darwin doesn't support zero-size objects, so give them a \
+ byte. */ \
+ if ((SIZE) == 0) \
+ assemble_zeros (1); \
+ } while (0)
+
/* Wrap new method names in quotes so the assembler doesn't gag.
Make Objective-C internal symbols local. */
#undef ASM_OUTPUT_LABELREF
-#define ASM_OUTPUT_LABELREF(FILE,NAME) \
- do { \
- STRIP_NAME_ENCODING (NAME, NAME); \
- if (NAME[0] == '&' || NAME[0] == '*') \
- { \
- int len = strlen (NAME); \
- if (len > 6 && !strcmp ("$stub", NAME + len - 5)) \
- machopic_validate_stub_or_non_lazy_ptr (NAME, 1); \
- else if (len > 7 && !strcmp ("$stub\"", NAME + len - 6)) \
- machopic_validate_stub_or_non_lazy_ptr (NAME, 1); \
- else if (len > 14 && !strcmp ("$non_lazy_ptr", NAME + len - 13)) \
- machopic_validate_stub_or_non_lazy_ptr (NAME, 0); \
- fputs (&NAME[1], FILE); \
- } \
- else if (NAME[0] == '+' || NAME[0] == '-') \
- fprintf (FILE, "\"%s\"", NAME); \
- else if (!strncmp (NAME, "_OBJC_", 6)) \
- fprintf (FILE, "L%s", NAME); \
- else if (!strncmp (NAME, ".objc_class_name_", 17)) \
- fprintf (FILE, "%s", NAME); \
- else \
- fprintf (FILE, "_%s", NAME); \
+#define ASM_OUTPUT_LABELREF(FILE,NAME) \
+ do { \
+ const char *xname = darwin_strip_name_encoding (NAME); \
+ if (! strcmp (xname, "<pic base>")) \
+ machopic_output_function_base_name(FILE); \
+ else if (xname[0] == '&' || xname[0] == '*') \
+ { \
+ int len = strlen (xname); \
+ if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
+ machopic_validate_stub_or_non_lazy_ptr (xname, 1); \
+ else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
+ machopic_validate_stub_or_non_lazy_ptr (xname, 1); \
+ else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
+ machopic_validate_stub_or_non_lazy_ptr (xname, 0); \
+ fputs (&xname[1], FILE); \
+ } \
+ else if (xname[0] == '+' || xname[0] == '-') \
+ fprintf (FILE, "\"%s\"", xname); \
+ else if (!strncmp (xname, "_OBJC_", 6)) \
+ fprintf (FILE, "L%s", xname); \
+ else if (!strncmp (xname, ".objc_class_name_", 17)) \
+ fprintf (FILE, "%s", xname); \
+ else \
+ fprintf (FILE, "_%s", xname); \
} while (0)
-/* The standard fillin directives are unaligned. */
+/* Output before executable code. */
+#undef TEXT_SECTION_ASM_OP
+#define TEXT_SECTION_ASM_OP ".text"
-#define UNALIGNED_SHORT_ASM_OP "\t.short\t"
-#define UNALIGNED_INT_ASM_OP "\t.long\t"
-/* Don't try to use this before the assembler knows about it. */
-/* #define UNALIGNED_DOUBLE_INT_ASM_OP "\t.quad\t" */
+/* Output before writable data. */
+
+#undef DATA_SECTION_ASM_OP
+#define DATA_SECTION_ASM_OP ".data"
#undef ALIGN_ASM_OP
#define ALIGN_ASM_OP ".align"
/* Ensure correct alignment of bss data. */
#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
-#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
- do { \
- fputs (".lcomm ", (FILE)); \
- assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), ",%u,%u\n", (SIZE), floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
- if ((DECL) && ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL))) \
- ENCODE_SECTION_INFO (DECL); \
- if ((DECL) && ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL))) \
- machopic_define_name (NAME); \
+#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
+ do { \
+ fputs (".lcomm ", (FILE)); \
+ assemble_name ((FILE), (NAME)); \
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", (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); \
+ if ((DECL) && ((TREE_STATIC (DECL) \
+ && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
+ || DECL_INITIAL (DECL))) \
+ machopic_define_name (NAME); \
} while (0)
-/* Output nothing for #ident. */
-
-#undef ASM_OUTPUT_IDENT
-#define ASM_OUTPUT_IDENT(FILE, NAME)
-
/* The maximum alignment which the object file format can support.
For Mach-O, this is 2^15. */
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT 0x8000
-/* Create new Mach-O sections. */
+/* Create new Mach-O sections. */
#undef SECTION_FUNCTION
#define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
+extern void FUNCTION (void); \
void \
-FUNCTION () \
+FUNCTION (void) \
{ \
- extern void objc_section_init (); \
- \
if (in_section != SECTION) \
{ \
if (OBJC) \
} \
} \
-#define ALIAS_SECTION(enum_value, alias_name) \
-do { if (!strcmp (alias_name, name)) \
- section_alias[enum_value] = (alias ? get_identifier (alias) : 0); \
- } while (0)
-
/* Darwin uses many types of special sections. */
#undef EXTRA_SECTIONS
in_objc_symbols, in_objc_module_info, \
in_objc_protocol, in_objc_string_object, \
in_objc_constant_string_object, \
+ in_objc_image_info, \
in_objc_class_names, in_objc_meth_var_names, \
- in_objc_meth_var_types, in_objc_cls_refs, \
+ in_objc_meth_var_types, in_objc_cls_refs, \
in_machopic_nl_symbol_ptr, \
in_machopic_lazy_symbol_ptr, \
in_machopic_symbol_stub, \
+ in_machopic_symbol_stub1, \
in_machopic_picsymbol_stub, \
+ in_machopic_picsymbol_stub1, \
+ in_darwin_exception, in_darwin_eh_frame, \
num_sections
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
+static void objc_section_init (void); \
SECTION_FUNCTION (const_section, \
in_const, \
".const", 0) \
SECTION_FUNCTION (objc_constant_string_object_section, \
in_objc_constant_string_object, \
".section __OBJC, __cstring_object", 1) \
+/* Fix-and-Continue image marker. */ \
+SECTION_FUNCTION (objc_image_info_section, \
+ in_objc_image_info, \
+ ".section __OBJC, __image_info", 1) \
SECTION_FUNCTION (objc_class_names_section, \
in_objc_class_names, \
".objc_class_names", 1) \
\
SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \
in_machopic_lazy_symbol_ptr, \
- ".lazy_symbol_pointer", 0) \
+ ".lazy_symbol_pointer", 0) \
SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \
in_machopic_nl_symbol_ptr, \
- ".non_lazy_symbol_pointer", 0) \
+ ".non_lazy_symbol_pointer", 0) \
SECTION_FUNCTION (machopic_symbol_stub_section, \
in_machopic_symbol_stub, \
- ".symbol_stub", 0) \
+ ".symbol_stub", 0) \
+SECTION_FUNCTION (machopic_symbol_stub1_section, \
+ in_machopic_symbol_stub1, \
+ ".section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16", 0)\
SECTION_FUNCTION (machopic_picsymbol_stub_section, \
in_machopic_picsymbol_stub, \
- ".picsymbol_stub", 0) \
+ ".picsymbol_stub", 0) \
+SECTION_FUNCTION (machopic_picsymbol_stub1_section, \
+ in_machopic_picsymbol_stub1, \
+ ".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32", 0)\
+SECTION_FUNCTION (darwin_exception_section, \
+ in_darwin_exception, \
+ ".section __DATA,__gcc_except_tab", 0) \
+SECTION_FUNCTION (darwin_eh_frame_section, \
+ in_darwin_eh_frame, \
+ ".section __TEXT,__eh_frame", 0) \
\
-void \
-objc_section_init () \
+static void \
+objc_section_init (void) \
{ \
static int been_here = 0; \
\
objc_cls_refs_section (); \
objc_class_section (); \
objc_meta_class_section (); \
- /* shared, hot -> cold */ \
+ /* shared, hot -> cold */ \
objc_cls_meth_section (); \
objc_inst_meth_section (); \
objc_protocol_section (); \
objc_module_info_section (); \
objc_symbols_section (); \
} \
-} \
-static tree section_alias[(int) num_sections]; \
-void try_section_alias () \
-{ \
- if (section_alias[in_section] && asm_out_file) \
- fprintf (asm_out_file, "%s\n", \
- IDENTIFIER_POINTER (section_alias[in_section])); \
-} \
-void alias_section (name, alias) \
- char *name, *alias; \
-{ \
- ALIAS_SECTION (in_data, "data"); \
- ALIAS_SECTION (in_text, "text"); \
- ALIAS_SECTION (in_const, "const"); \
- ALIAS_SECTION (in_const_data, "const_data"); \
- ALIAS_SECTION (in_cstring, "cstring"); \
- ALIAS_SECTION (in_literal4, "literal4"); \
- ALIAS_SECTION (in_literal8, "literal8"); \
}
-#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION const_section
-#undef SELECT_SECTION
-#define SELECT_SECTION(exp,reloc,align) \
- do \
- { \
- if (TREE_CODE (exp) == STRING_CST) \
- { \
- if (flag_writable_strings) \
- data_section (); \
- else if (TREE_STRING_LENGTH (exp) != \
- strlen (TREE_STRING_POINTER (exp)) + 1) \
- readonly_data_section (); \
- else \
- cstring_section (); \
- } \
- else if (TREE_CODE (exp) == INTEGER_CST \
- || TREE_CODE (exp) == REAL_CST) \
- { \
- tree size = TYPE_SIZE (TREE_TYPE (exp)); \
- \
- if (TREE_CODE (size) == INTEGER_CST && \
- TREE_INT_CST_LOW (size) == 4 && \
- TREE_INT_CST_HIGH (size) == 0) \
- literal4_section (); \
- else if (TREE_CODE (size) == INTEGER_CST && \
- TREE_INT_CST_LOW (size) == 8 && \
- TREE_INT_CST_HIGH (size) == 0) \
- literal8_section (); \
- else \
- readonly_data_section (); \
- } \
- else if (TREE_CODE (exp) == CONSTRUCTOR \
- && TREE_TYPE (exp) \
- && TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE \
- && TYPE_NAME (TREE_TYPE (exp))) \
- { \
- tree name = TYPE_NAME (TREE_TYPE (exp)); \
- if (TREE_CODE (name) == TYPE_DECL) \
- name = DECL_NAME (name); \
- if (!strcmp (IDENTIFIER_POINTER (name), "NSConstantString")) \
- objc_constant_string_object_section (); \
- else if (!strcmp (IDENTIFIER_POINTER (name), "NXConstantString")) \
- objc_string_object_section (); \
- else if (TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- { \
- if (TREE_SIDE_EFFECTS (exp) || flag_pic && reloc) \
- const_data_section (); \
- else \
- readonly_data_section (); \
- } \
- else \
- data_section (); \
- } \
- else if (TREE_CODE (exp) == VAR_DECL && \
- DECL_NAME (exp) && \
- TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE && \
- IDENTIFIER_POINTER (DECL_NAME (exp)) && \
- !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6)) \
- { \
- const char *name = IDENTIFIER_POINTER (DECL_NAME (exp)); \
- \
- if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20)) \
- objc_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23)) \
- objc_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23)) \
- objc_cat_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22)) \
- objc_class_vars_section (); \
- else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25)) \
- objc_instance_vars_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_PROTOCOLS_", 22)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_NAME_", 17)) \
- objc_class_names_section (); \
- else if (!strncmp (name, "_OBJC_METH_VAR_NAME_", 20)) \
- objc_meth_var_names_section (); \
- else if (!strncmp (name, "_OBJC_METH_VAR_TYPE_", 20)) \
- objc_meth_var_types_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_REFERENCES", 22)) \
- objc_cls_refs_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_", 12)) \
- objc_class_section (); \
- else if (!strncmp (name, "_OBJC_METACLASS_", 16)) \
- objc_meta_class_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_", 15)) \
- objc_category_section (); \
- else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25)) \
- objc_selector_refs_section (); \
- else if (!strncmp (name, "_OBJC_SELECTOR_FIXUP", 20)) \
- objc_selector_fixup_section (); \
- else if (!strncmp (name, "_OBJC_SYMBOLS", 13)) \
- objc_symbols_section (); \
- else if (!strncmp (name, "_OBJC_MODULES", 13)) \
- objc_module_info_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_INSTANCE_METHODS_", 32)) \
- objc_cat_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_CLASS_METHODS_", 29)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_REFS_", 20)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_", 15)) \
- objc_protocol_section (); \
- else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- && !TREE_SIDE_EFFECTS (exp)) \
- { if (flag_pic && reloc ) const_data_section (); \
- else readonly_data_section (); } \
- else \
- data_section (); \
- } \
- else if (TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- { \
- if (TREE_SIDE_EFFECTS (exp) || flag_pic && reloc) \
- const_data_section (); \
- else \
- readonly_data_section (); \
- } \
- else \
- data_section (); \
- try_section_alias (); \
- } \
- while (0)
-
-#undef SELECT_RTX_SECTION
-#define SELECT_RTX_SECTION(mode, rtx, align) \
- do \
- { \
- if (GET_MODE_SIZE (mode) == 8) \
- literal8_section (); \
- else if (GET_MODE_SIZE (mode) == 4) \
- literal4_section (); \
- else \
- const_section (); \
- } \
- while (0)
+#undef TARGET_ASM_SELECT_SECTION
+#define TARGET_ASM_SELECT_SECTION machopic_select_section
+#undef TARGET_ASM_SELECT_RTX_SECTION
+#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
#define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
- do { \
+ do { \
if (FILE) { \
- if (flag_pic) \
+ if (MACHOPIC_INDIRECT) \
fprintf (FILE, "\t.lazy_reference "); \
else \
fprintf (FILE, "\t.reference "); \
do { \
if (FILE) { \
fprintf (FILE, "\t"); \
- assemble_name (FILE, NAME); \
+ assemble_name (FILE, NAME); \
fprintf (FILE, "=0\n"); \
- assemble_global (NAME); \
+ (*targetm.asm_out.globalize_label) (FILE, NAME); \
} \
} while (0)
-#undef ASM_GLOBALIZE_LABEL
-#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
- do { const char *const _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) { \
- (fputs (".globl ", FILE), assemble_name (FILE, _x), fputs ("\n", FILE)); \
- }} while (0)
+/* Globalizing directive for a label. */
+#define GLOBAL_ASM_OP ".globl "
+#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
-#undef ASM_GENERATE_INTERNAL_LABEL
-#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*%s%d", PREFIX, NUM)
+/* 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
-/* This is how to output an internal numbered label where PREFIX is
- the class of label and NUM is the number within the class. */
-#undef ASM_OUTPUT_INTERNAL_LABEL
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
- fprintf (FILE, "%s%d:\n", PREFIX, NUM)
+#undef ASM_GENERATE_INTERNAL_LABEL
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
+ sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
/* Since we have a separate readonly data section, define this so that
jump tables end up in text rather than data. */
/* Macros defining the various PIC cases. */
-#define MACHOPIC_INDIRECT (flag_pic)
-#define MACHOPIC_JUST_INDIRECT (flag_pic == 1)
-#define MACHOPIC_PURE (flag_pic == 2)
-
-#define ENCODE_SECTION_INFO(DECL) \
- darwin_encode_section_info (DECL)
-
-/* Be conservative and always redo the encoding. */
-
-#define REDO_SECTION_INFO_P(DECL) (1)
+#define MACHO_DYNAMIC_NO_PIC_P (TARGET_DYNAMIC_NO_PIC)
+#define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
+#define MACHOPIC_JUST_INDIRECT (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
+#define MACHOPIC_PURE (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
-#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
- ((VAR) = ((SYMBOL_NAME[0] == '!') ? (SYMBOL_NAME) + 4 : (SYMBOL_NAME)))
+#undef TARGET_ENCODE_SECTION_INFO
+#define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
+#undef TARGET_STRIP_NAME_ENCODING
+#define TARGET_STRIP_NAME_ENCODING darwin_strip_name_encoding
#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
do { \
#define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
do { \
- const char *symbol_ = (SYMBOL); \
+ const char *symbol_ = darwin_strip_name_encoding (SYMBOL); \
char *buffer_ = (BUF); \
- STRIP_NAME_ENCODING (symbol_, symbol_); \
if (symbol_[0] == '"') \
{ \
- strcpy (buffer_, "\"L"); \
+ strcpy (buffer_, "\"L"); \
strcpy (buffer_ + 2, symbol_ + 1); \
strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
} \
} \
} while (0)
-#define REGISTER_TARGET_PRAGMAS(PFILE) \
- do { \
- cpp_register_pragma (PFILE, 0, "mark", darwin_pragma_ignore); \
- cpp_register_pragma (PFILE, 0, "options", darwin_pragma_options); \
- cpp_register_pragma (PFILE, 0, "segment", darwin_pragma_ignore); \
- cpp_register_pragma (PFILE, 0, "unused", darwin_pragma_unused); \
+#define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
+
+#define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
+
+#undef ASM_PREFERRED_EH_DATA_FORMAT
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
+ (((CODE) == 2 && (GLOBAL) == 1) \
+ ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
+ ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
+
+#define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \
+ darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
+
+#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
+
+#define DARWIN_REGISTER_TARGET_PRAGMAS() \
+ do { \
+ c_register_pragma (0, "mark", darwin_pragma_ignore); \
+ c_register_pragma (0, "options", darwin_pragma_options); \
+ c_register_pragma (0, "segment", darwin_pragma_ignore); \
+ c_register_pragma (0, "unused", darwin_pragma_unused); \
} while (0)
+
+#undef ASM_APP_ON
+#define ASM_APP_ON ""
+#undef ASM_APP_OFF
+#define ASM_APP_OFF ""
+
+void darwin_register_frameworks (int);
+#define TARGET_EXTRA_INCLUDES darwin_register_frameworks
+
+void add_framework_path (char *);
+#define TARGET_OPTF add_framework_path
+
+#define TARGET_HAS_F_SETLKW
+
+#endif /* CONFIG_DARWIN_H */
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