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jlechner |
/* Target definitions for Darwin (Mac OS X) systems.
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Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004,
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2005
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Free Software Foundation, Inc.
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Contributed by Apple Computer Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#ifndef CONFIG_DARWIN_H
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#define CONFIG_DARWIN_H
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/* The definitions in this file are common to all processor types
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running Darwin, which is the kernel for Mac OS X. Darwin is
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basically a BSD user layer laid over a Mach kernel, then evolved
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for many years (at NeXT) in parallel with other Unix systems. So
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while the runtime is a somewhat idiosyncratic Mach-based thing,
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other definitions look like they would for a BSD variant. */
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/* Although NeXT ran on many different architectures, as of Jan 2001
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the only supported Darwin targets are PowerPC and x86. */
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/* One of Darwin's NeXT legacies is the Mach-O format, which is partly
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like a.out and partly like COFF, with additional features like
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multi-architecture binary support. */
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#define OBJECT_FORMAT_MACHO
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/* Suppress g++ attempt to link in the math library automatically. */
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#define MATH_LIBRARY ""
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/* We have atexit. */
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#define HAVE_ATEXIT
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/* Define an empty body for the function do_global_dtors() in libgcc2.c. */
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#define DO_GLOBAL_DTORS_BODY
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/* The string value for __SIZE_TYPE__. */
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#ifndef SIZE_TYPE
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#define SIZE_TYPE "long unsigned int"
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#endif
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/* Type used for ptrdiff_t, as a string used in a declaration. */
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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/* wchar_t is int. */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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/* Default to using the NeXT-style runtime, since that's what is
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pre-installed on Darwin systems. */
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#define NEXT_OBJC_RUNTIME
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/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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we want to retain compatibility with older gcc versions. */
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#undef DEFAULT_PCC_STRUCT_RETURN
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* This table intercepts weirdo options whose names would interfere
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with normal driver conventions, and either translates them into
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standardly-named options, or adds a 'Z' so that they can get to
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specs processing without interference.
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Do not expand a linker option to "-Xlinker -<option>", since that
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forfeits the ability to control via spec strings later. However,
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as a special exception, do this translation with -filelist, because
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otherwise the driver will think there are no input files and quit.
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(The alternative would be to hack the driver to recognize -filelist
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specially, but it's simpler to use the translation table.)
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Note that an option name with a prefix that matches another option
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name, that also takes an argument, needs to be modified so the
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prefix is different, otherwise a '*' after the shorter option will
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match with the longer one.
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The SUBTARGET_OPTION_TRANSLATE_TABLE macro, which _must_ be defined
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in gcc/config/{i386,rs6000}/darwin.h, should contain any additional
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command-line option translations specific to the particular target
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architecture. */
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#define TARGET_OPTION_TRANSLATE_TABLE \
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{ "-all_load", "-Zall_load" }, \
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{ "-allowable_client", "-Zallowable_client" }, \
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{ "-arch_errors_fatal", "-Zarch_errors_fatal" }, \
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{ "-bind_at_load", "-Zbind_at_load" }, \
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{ "-bundle", "-Zbundle" }, \
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{ "-bundle_loader", "-Zbundle_loader" }, \
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{ "-weak_reference_mismatches", "-Zweak_reference_mismatches" }, \
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{ "-dead_strip", "-Zdead_strip" }, \
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{ "-no_dead_strip_inits_and_terms", "-Zno_dead_strip_inits_and_terms" }, \
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{ "-dependency-file", "-MF" }, \
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{ "-dylib_file", "-Zdylib_file" }, \
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{ "-dynamic", "-Zdynamic" }, \
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{ "-dynamiclib", "-Zdynamiclib" }, \
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{ "-exported_symbols_list", "-Zexported_symbols_list" }, \
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{ "-gfull", "-g -fno-eliminate-unused-debug-symbols" }, \
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{ "-gused", "-g -feliminate-unused-debug-symbols" }, \
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{ "-segaddr", "-Zsegaddr" }, \
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{ "-segs_read_only_addr", "-Zsegs_read_only_addr" }, \
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{ "-segs_read_write_addr", "-Zsegs_read_write_addr" }, \
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{ "-seg_addr_table", "-Zseg_addr_table" }, \
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{ "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \
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{ "-filelist", "-Xlinker -filelist -Xlinker" }, \
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{ "-framework", "-Xlinker -framework -Xlinker" }, \
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{ "-flat_namespace", "-Zflat_namespace" }, \
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{ "-force_cpusubtype_ALL", "-Zforce_cpusubtype_ALL" }, \
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{ "-force_flat_namespace", "-Zforce_flat_namespace" }, \
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{ "-image_base", "-Zimage_base" }, \
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{ "-init", "-Zinit" }, \
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{ "-install_name", "-Zinstall_name" }, \
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{ "-multiply_defined_unused", "-Zmultiplydefinedunused" }, \
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{ "-multiply_defined", "-Zmultiply_defined" }, \
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{ "-multi_module", "-Zmulti_module" }, \
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{ "-static", "-static -Wa,-static" }, \
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{ "-single_module", "-Zsingle_module" }, \
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{ "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
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SUBTARGET_OPTION_TRANSLATE_TABLE
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#define SUBTARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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if (flag_pic) \
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builtin_define ("__PIC__"); \
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} \
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while (0)
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/* These compiler options take n arguments. */
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#undef WORD_SWITCH_TAKES_ARG
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#define WORD_SWITCH_TAKES_ARG(STR) \
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(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) ? 1 : \
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!strcmp (STR, "Zallowable_client") ? 1 : \
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!strcmp (STR, "arch") ? 1 : \
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!strcmp (STR, "arch_only") ? 1 : \
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!strcmp (STR, "Zbundle_loader") ? 1 : \
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!strcmp (STR, "client_name") ? 1 : \
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!strcmp (STR, "compatibility_version") ? 1 : \
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!strcmp (STR, "current_version") ? 1 : \
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!strcmp (STR, "Zdylib_file") ? 1 : \
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!strcmp (STR, "Zexported_symbols_list") ? 1 : \
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!strcmp (STR, "Zimage_base") ? 1 : \
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!strcmp (STR, "Zinit") ? 1 : \
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!strcmp (STR, "Zinstall_name") ? 1 : \
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!strcmp (STR, "Zmultiplydefinedunused") ? 1 : \
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!strcmp (STR, "Zmultiply_defined") ? 1 : \
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!strcmp (STR, "precomp-trustfile") ? 1 : \
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!strcmp (STR, "read_only_relocs") ? 1 : \
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!strcmp (STR, "sectcreate") ? 3 : \
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!strcmp (STR, "sectorder") ? 3 : \
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!strcmp (STR, "Zsegaddr") ? 2 : \
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!strcmp (STR, "Zsegs_read_only_addr") ? 1 : \
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!strcmp (STR, "Zsegs_read_write_addr") ? 1 : \
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!strcmp (STR, "Zseg_addr_table") ? 1 : \
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!strcmp (STR, "Zseg_addr_table_filename") ?1 :\
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!strcmp (STR, "seg1addr") ? 1 : \
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!strcmp (STR, "segprot") ? 3 : \
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!strcmp (STR, "sub_library") ? 1 : \
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!strcmp (STR, "sub_umbrella") ? 1 : \
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!strcmp (STR, "umbrella") ? 1 : \
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!strcmp (STR, "undefined") ? 1 : \
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!strcmp (STR, "Zunexported_symbols_list") ? 1 : \
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!strcmp (STR, "Zweak_reference_mismatches") ? 1 : \
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!strcmp (STR, "pagezero_size") ? 1 : \
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!strcmp (STR, "segs_read_only_addr") ? 1 : \
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!strcmp (STR, "segs_read_write_addr") ? 1 : \
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!strcmp (STR, "sectalign") ? 3 : \
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!strcmp (STR, "sectobjectsymbols") ? 2 : \
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!strcmp (STR, "segcreate") ? 3 : \
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!strcmp (STR, "dylinker_install_name") ? 1 : \
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0)
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/* Machine dependent cpp options. Don't add more options here, add
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them to darwin_cpp_builtins in darwin-c.c. */
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#undef CPP_SPEC
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#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}"
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/* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
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precomp, libtool, and fat build additions. Also we
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don't specify a second %G after %L because libSystem is
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self-contained and doesn't need to link against libgcc.a. */
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/* In general, random Darwin linker flags should go into LINK_SPEC
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instead of LINK_COMMAND_SPEC. The command spec is better for
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specifying the handling of options understood by generic Unix
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linkers, and for positional arguments like libraries. */
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#define LINK_COMMAND_SPEC "\
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%{!fdump=*:%{!fsyntax-only:%{!precomp:%{!c:%{!M:%{!MM:%{!E:%{!S:\
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%{!Zdynamiclib:%(linker)}%{Zdynamiclib:/usr/bin/libtool} \
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%l %X %{d} %{s} %{t} %{Z} \
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%{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \
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%{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \
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%{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \
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%{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|coverage:-lgcov} \
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%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %G %L}} \
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%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}"
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/* Please keep the random linker options in alphabetical order (modulo
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'Z' and 'no' prefixes). Options that can only go to one of libtool
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or ld must be listed twice, under both !Zdynamiclib and
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Zdynamiclib, with one of the cases reporting an error. */
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/* Note that options taking arguments may appear multiple times on a
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command line with different arguments each time, so put a * after
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their names so all of them get passed. */
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#define LINK_SPEC \
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"%{static}%{!static:-dynamic} \
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%{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}\
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%{!Zdynamiclib: \
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%{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \
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%{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \
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| 234 |
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%{Zbundle:-bundle} \
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| 235 |
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%{Zbundle_loader*:-bundle_loader %*} \
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%{client_name*} \
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%{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
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} \
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| 239 |
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%{current_version*:%e-current_version only allowed with -dynamiclib} \
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| 240 |
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%{Zforce_flat_namespace:-force_flat_namespace} \
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| 241 |
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%{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
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| 242 |
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%{keep_private_externs} \
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| 243 |
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%{private_bundle} \
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| 244 |
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} \
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| 245 |
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%{Zdynamiclib: \
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| 246 |
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%{Zbundle:%e-bundle not allowed with -dynamiclib} \
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| 247 |
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%{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
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| 248 |
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%{client_name*:%e-client_name not allowed with -dynamiclib} \
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| 249 |
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%{compatibility_version*} \
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| 250 |
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%{current_version*} \
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| 251 |
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%{Zforce_cpusubtype_ALL:-arch_only %(darwin_arch)} \
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| 252 |
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%{!Zforce_cpusubtype_ALL: -arch_only %(darwin_subarch)} \
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| 253 |
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%{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
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| 254 |
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%{Zinstall_name*:-install_name %*} \
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| 255 |
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%{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
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| 256 |
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%{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
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| 257 |
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} \
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| 258 |
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%{Zall_load:-all_load}%{Zdynamiclib:%{!Zall_load:-noall_load}} \
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| 259 |
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%{Zallowable_client*:-allowable_client %*} \
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| 260 |
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%{Zbind_at_load:-bind_at_load} \
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| 261 |
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%{Zarch_errors_fatal:-arch_errors_fatal} \
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| 262 |
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%{Zdead_strip:-dead_strip} \
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| 263 |
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%{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
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| 264 |
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%{Zdylib_file*:-dylib_file %*} \
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| 265 |
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%{Zdynamic:-dynamic}\
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| 266 |
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%{Zexported_symbols_list*:-exported_symbols_list %*} \
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| 267 |
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%{Zflat_namespace:-flat_namespace} \
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| 268 |
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%{headerpad_max_install_names*} \
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| 269 |
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%{Zimage_base*:-image_base %*} \
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| 270 |
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%{Zinit*:-init %*} \
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| 271 |
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%{mmacosx-version-min=*:-macosx_version_min %*} \
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| 272 |
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%{nomultidefs} \
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| 273 |
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%{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
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| 274 |
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%{Zmultiply_defined*:-multiply_defined %*} \
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| 275 |
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%{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
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| 276 |
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%{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
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| 277 |
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%{read_only_relocs} \
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| 278 |
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%{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
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| 279 |
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%{Zsegaddr*:-segaddr %*} \
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| 280 |
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%{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
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| 281 |
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%{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
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| 282 |
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%{Zseg_addr_table*: -seg_addr_table %*} \
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| 283 |
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%{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \
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| 284 |
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%{sub_library*} %{sub_umbrella*} \
|
| 285 |
|
|
%{isysroot*:-syslibroot %*} \
|
| 286 |
|
|
%{twolevel_namespace} %{twolevel_namespace_hints} \
|
| 287 |
|
|
%{umbrella*} \
|
| 288 |
|
|
%{undefined*} \
|
| 289 |
|
|
%{Zunexported_symbols_list*:-unexported_symbols_list %*} \
|
| 290 |
|
|
%{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
|
| 291 |
|
|
%{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \
|
| 292 |
|
|
%{X} \
|
| 293 |
|
|
%{y*} \
|
| 294 |
|
|
%{w} \
|
| 295 |
|
|
%{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \
|
| 296 |
|
|
%{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
|
| 297 |
|
|
%{whatsloaded} %{dylinker_install_name*} \
|
| 298 |
|
|
%{dylinker} %{Mach} "
|
| 299 |
|
|
|
| 300 |
|
|
|
| 301 |
|
|
/* Machine dependent libraries. */
|
| 302 |
|
|
|
| 303 |
|
|
#define LIB_SPEC "%{!static:-lSystem}"
|
| 304 |
|
|
|
| 305 |
|
|
/* Support -mmacosx-version-min by supplying different (stub) libgcc_s.dylib
|
| 306 |
|
|
libraries to link against, and by not linking against libgcc_s on
|
| 307 |
|
|
earlier-than-10.3.9.
|
| 308 |
|
|
|
| 309 |
|
|
Note that by default, -lgcc_eh is not linked against! This is
|
| 310 |
|
|
because in a future version of Darwin the EH frame information may
|
| 311 |
|
|
be in a new format, or the fallback routine might be changed; if
|
| 312 |
|
|
you want to explicitly link against the static version of those
|
| 313 |
|
|
routines, because you know you don't need to unwind through system
|
| 314 |
|
|
libraries, you need to explicitly say -static-libgcc.
|
| 315 |
|
|
|
| 316 |
|
|
If it is linked against, it has to be before -lgcc, because it may
|
| 317 |
|
|
need symbols from -lgcc. */
|
| 318 |
|
|
#undef REAL_LIBGCC_SPEC
|
| 319 |
|
|
#define REAL_LIBGCC_SPEC \
|
| 320 |
|
|
"%{static-libgcc|static: -lgcc_eh -lgcc; \
|
| 321 |
|
|
shared-libgcc|fexceptions: \
|
| 322 |
|
|
%:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \
|
| 323 |
|
|
%:version-compare(>= 10.5 mmacosx-version-min= -lgcc_s.10.5) \
|
| 324 |
|
|
-lgcc; \
|
| 325 |
|
|
:%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \
|
| 326 |
|
|
%:version-compare(>= 10.5 mmacosx-version-min= -lgcc_s.10.5) \
|
| 327 |
|
|
-lgcc}"
|
| 328 |
|
|
|
| 329 |
|
|
/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
|
| 330 |
|
|
|
| 331 |
|
|
#undef STARTFILE_SPEC
|
| 332 |
|
|
#define STARTFILE_SPEC \
|
| 333 |
|
|
"%{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
|
| 334 |
|
|
%{!Zbundle:%{pg:%{static:-lgcrt0.o} \
|
| 335 |
|
|
%{!static:%{object:-lgcrt0.o} \
|
| 336 |
|
|
%{!object:%{preload:-lgcrt0.o} \
|
| 337 |
|
|
%{!preload:-lgcrt1.o %(darwin_crt2)}}}} \
|
| 338 |
|
|
%{!pg:%{static:-lcrt0.o} \
|
| 339 |
|
|
%{!static:%{object:-lcrt0.o} \
|
| 340 |
|
|
%{!object:%{preload:-lcrt0.o} \
|
| 341 |
|
|
%{!preload:-lcrt1.o %(darwin_crt2)}}}}}}"
|
| 342 |
|
|
|
| 343 |
|
|
/* The native Darwin linker doesn't necessarily place files in the order
|
| 344 |
|
|
that they're specified on the link line. Thus, it is pointless
|
| 345 |
|
|
to put anything in ENDFILE_SPEC. */
|
| 346 |
|
|
/* #define ENDFILE_SPEC "" */
|
| 347 |
|
|
|
| 348 |
|
|
/* Default Darwin ASM_SPEC, very simple. */
|
| 349 |
|
|
#define ASM_SPEC "-arch %(darwin_arch) \
|
| 350 |
|
|
%{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL}"
|
| 351 |
|
|
|
| 352 |
|
|
/* We use Dbx symbol format. */
|
| 353 |
|
|
|
| 354 |
|
|
#define DBX_DEBUGGING_INFO 1
|
| 355 |
|
|
|
| 356 |
|
|
/* Also enable Dwarf 2 as an option. */
|
| 357 |
|
|
#define DWARF2_DEBUGGING_INFO
|
| 358 |
|
|
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
|
| 359 |
|
|
|
| 360 |
|
|
#define DEBUG_FRAME_SECTION "__DWARFA,__debug_frame,coalesced,no_toc+strip_static_syms"
|
| 361 |
|
|
#define DEBUG_INFO_SECTION "__DWARFA,__debug_info"
|
| 362 |
|
|
#define DEBUG_ABBREV_SECTION "__DWARFA,__debug_abbrev"
|
| 363 |
|
|
#define DEBUG_ARANGES_SECTION "__DWARFA,__debug_aranges"
|
| 364 |
|
|
#define DEBUG_MACINFO_SECTION "__DWARFA,__debug_macinfo"
|
| 365 |
|
|
#define DEBUG_LINE_SECTION "__DWARFA,__debug_line"
|
| 366 |
|
|
#define DEBUG_LOC_SECTION "__DWARFA,__debug_loc"
|
| 367 |
|
|
#define DEBUG_PUBNAMES_SECTION "__DWARFA,__debug_pubnames"
|
| 368 |
|
|
#define DEBUG_STR_SECTION "__DWARFA,__debug_str"
|
| 369 |
|
|
#define DEBUG_RANGES_SECTION "__DWARFA,__debug_ranges"
|
| 370 |
|
|
|
| 371 |
|
|
/* When generating stabs debugging, use N_BINCL entries. */
|
| 372 |
|
|
|
| 373 |
|
|
#define DBX_USE_BINCL
|
| 374 |
|
|
|
| 375 |
|
|
/* There is no limit to the length of stabs strings. */
|
| 376 |
|
|
|
| 377 |
|
|
#define DBX_CONTIN_LENGTH 0
|
| 378 |
|
|
|
| 379 |
|
|
/* gdb needs a null N_SO at the end of each file for scattered loading. */
|
| 380 |
|
|
|
| 381 |
|
|
#define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
|
| 382 |
|
|
|
| 383 |
|
|
/* GCC's definition of 'one_only' is the same as its definition of 'weak'. */
|
| 384 |
|
|
#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
|
| 385 |
|
|
|
| 386 |
|
|
/* Mach-O supports 'weak imports', and 'weak definitions' in coalesced
|
| 387 |
|
|
sections. machopic_select_section ensures that weak variables go in
|
| 388 |
|
|
coalesced sections. Weak aliases (or any other kind of aliases) are
|
| 389 |
|
|
not supported. Weak symbols that aren't visible outside the .s file
|
| 390 |
|
|
are not supported. */
|
| 391 |
|
|
#define ASM_WEAKEN_DECL(FILE, DECL, NAME, ALIAS) \
|
| 392 |
|
|
do { \
|
| 393 |
|
|
if (ALIAS) \
|
| 394 |
|
|
{ \
|
| 395 |
|
|
warning (0, "alias definitions not supported in Mach-O; ignored"); \
|
| 396 |
|
|
break; \
|
| 397 |
|
|
} \
|
| 398 |
|
|
\
|
| 399 |
|
|
if (! DECL_EXTERNAL (DECL) && TREE_PUBLIC (DECL)) \
|
| 400 |
|
|
targetm.asm_out.globalize_label (FILE, NAME); \
|
| 401 |
|
|
if (DECL_EXTERNAL (DECL)) \
|
| 402 |
|
|
fputs ("\t.weak_reference ", FILE); \
|
| 403 |
|
|
else if (! lookup_attribute ("weak", DECL_ATTRIBUTES (DECL)) \
|
| 404 |
|
|
&& lookup_attribute ("weak_import", DECL_ATTRIBUTES (DECL))) \
|
| 405 |
|
|
break; \
|
| 406 |
|
|
else if (TREE_PUBLIC (DECL)) \
|
| 407 |
|
|
fputs ("\t.weak_definition ", FILE); \
|
| 408 |
|
|
else \
|
| 409 |
|
|
break; \
|
| 410 |
|
|
assemble_name (FILE, NAME); \
|
| 411 |
|
|
fputc ('\n', FILE); \
|
| 412 |
|
|
} while (0)
|
| 413 |
|
|
|
| 414 |
|
|
/* Darwin has the pthread routines in libSystem, which every program
|
| 415 |
|
|
links to, so there's no need for weak-ness for that. */
|
| 416 |
|
|
#define GTHREAD_USE_WEAK 0
|
| 417 |
|
|
|
| 418 |
|
|
/* The Darwin linker imposes two limitations on common symbols: they
|
| 419 |
|
|
can't have hidden visibility, and they can't appear in dylibs. As
|
| 420 |
|
|
a consequence, we should never use common symbols to represent
|
| 421 |
|
|
vague linkage. */
|
| 422 |
|
|
#undef USE_COMMON_FOR_ONE_ONLY
|
| 423 |
|
|
#define USE_COMMON_FOR_ONE_ONLY 0
|
| 424 |
|
|
|
| 425 |
|
|
/* The Darwin linker doesn't want coalesced symbols to appear in
|
| 426 |
|
|
a static archive's table of contents. */
|
| 427 |
|
|
#undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
|
| 428 |
|
|
#define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
|
| 429 |
|
|
|
| 430 |
|
|
/* We make exception information linkonce. */
|
| 431 |
|
|
#undef TARGET_USES_WEAK_UNWIND_INFO
|
| 432 |
|
|
#define TARGET_USES_WEAK_UNWIND_INFO 1
|
| 433 |
|
|
|
| 434 |
|
|
/* We need to use a nonlocal label for the start of an EH frame: the
|
| 435 |
|
|
Darwin linker requires that a coalesced section start with a label. */
|
| 436 |
|
|
#undef FRAME_BEGIN_LABEL
|
| 437 |
|
|
#define FRAME_BEGIN_LABEL "EH_frame"
|
| 438 |
|
|
|
| 439 |
|
|
/* Emit a label for the FDE corresponding to DECL. EMPTY means
|
| 440 |
|
|
emit a label for an empty FDE. */
|
| 441 |
|
|
#define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
|
| 442 |
|
|
|
| 443 |
|
|
/* Our profiling scheme doesn't LP labels and counter words. */
|
| 444 |
|
|
|
| 445 |
|
|
#define NO_PROFILE_COUNTERS 1
|
| 446 |
|
|
|
| 447 |
|
|
#undef INIT_SECTION_ASM_OP
|
| 448 |
|
|
#define INIT_SECTION_ASM_OP
|
| 449 |
|
|
|
| 450 |
|
|
#undef INVOKE__main
|
| 451 |
|
|
|
| 452 |
|
|
#define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
|
| 453 |
|
|
#define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
|
| 454 |
|
|
|
| 455 |
|
|
/* Always prefix with an underscore. */
|
| 456 |
|
|
|
| 457 |
|
|
#define USER_LABEL_PREFIX "_"
|
| 458 |
|
|
|
| 459 |
|
|
/* Don't output a .file directive. That is only used by the assembler for
|
| 460 |
|
|
error reporting. */
|
| 461 |
|
|
#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
|
| 462 |
|
|
#define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
|
| 463 |
|
|
|
| 464 |
|
|
#undef TARGET_ASM_FILE_END
|
| 465 |
|
|
#define TARGET_ASM_FILE_END darwin_file_end
|
| 466 |
|
|
|
| 467 |
|
|
#define ASM_OUTPUT_SKIP(FILE,SIZE) \
|
| 468 |
|
|
fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
|
| 469 |
|
|
|
| 470 |
|
|
/* Give ObjC methods pretty symbol names. */
|
| 471 |
|
|
|
| 472 |
|
|
#undef OBJC_GEN_METHOD_LABEL
|
| 473 |
|
|
#define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
|
| 474 |
|
|
do { if (CAT_NAME) \
|
| 475 |
|
|
sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
|
| 476 |
|
|
(CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
|
| 477 |
|
|
else \
|
| 478 |
|
|
sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
|
| 479 |
|
|
(CLASS_NAME), (SEL_NAME)); \
|
| 480 |
|
|
} while (0)
|
| 481 |
|
|
|
| 482 |
|
|
/* The RTTI data (e.g., __ti4name) is common and public (and static),
|
| 483 |
|
|
but it does need to be referenced via indirect PIC data pointers.
|
| 484 |
|
|
The machopic_define_symbol calls are telling the machopic subsystem
|
| 485 |
|
|
that the name *is* defined in this module, so it doesn't need to
|
| 486 |
|
|
make them indirect. */
|
| 487 |
|
|
|
| 488 |
|
|
#undef ASM_DECLARE_OBJECT_NAME
|
| 489 |
|
|
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
|
| 490 |
|
|
do { \
|
| 491 |
|
|
const char *xname = NAME; \
|
| 492 |
|
|
if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
|
| 493 |
|
|
xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
|
| 494 |
|
|
if (! DECL_WEAK (DECL) \
|
| 495 |
|
|
&& ((TREE_STATIC (DECL) \
|
| 496 |
|
|
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|
| 497 |
|
|
|| DECL_INITIAL (DECL))) \
|
| 498 |
|
|
machopic_define_symbol (DECL_RTL (DECL)); \
|
| 499 |
|
|
if ((TREE_STATIC (DECL) \
|
| 500 |
|
|
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|
| 501 |
|
|
|| DECL_INITIAL (DECL)) \
|
| 502 |
|
|
(* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
|
| 503 |
|
|
ASM_OUTPUT_LABEL (FILE, xname); \
|
| 504 |
|
|
/* Darwin doesn't support zero-size objects, so give them a \
|
| 505 |
|
|
byte. */ \
|
| 506 |
|
|
if (tree_low_cst (DECL_SIZE_UNIT (DECL), 1) == 0) \
|
| 507 |
|
|
assemble_zeros (1); \
|
| 508 |
|
|
} while (0)
|
| 509 |
|
|
|
| 510 |
|
|
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
|
| 511 |
|
|
do { \
|
| 512 |
|
|
const char *xname = NAME; \
|
| 513 |
|
|
if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
|
| 514 |
|
|
xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
|
| 515 |
|
|
if (! DECL_WEAK (DECL) \
|
| 516 |
|
|
&& ((TREE_STATIC (DECL) \
|
| 517 |
|
|
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|
| 518 |
|
|
|| DECL_INITIAL (DECL))) \
|
| 519 |
|
|
machopic_define_symbol (DECL_RTL (DECL)); \
|
| 520 |
|
|
if ((TREE_STATIC (DECL) \
|
| 521 |
|
|
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|
| 522 |
|
|
|| DECL_INITIAL (DECL)) \
|
| 523 |
|
|
(* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
|
| 524 |
|
|
ASM_OUTPUT_LABEL (FILE, xname); \
|
| 525 |
|
|
} while (0)
|
| 526 |
|
|
|
| 527 |
|
|
#define ASM_DECLARE_CONSTANT_NAME(FILE, NAME, EXP, SIZE) \
|
| 528 |
|
|
do { \
|
| 529 |
|
|
ASM_OUTPUT_LABEL (FILE, NAME); \
|
| 530 |
|
|
/* Darwin doesn't support zero-size objects, so give them a \
|
| 531 |
|
|
byte. */ \
|
| 532 |
|
|
if ((SIZE) == 0) \
|
| 533 |
|
|
assemble_zeros (1); \
|
| 534 |
|
|
} while (0)
|
| 535 |
|
|
|
| 536 |
|
|
/* Wrap new method names in quotes so the assembler doesn't gag.
|
| 537 |
|
|
Make Objective-C internal symbols local. */
|
| 538 |
|
|
|
| 539 |
|
|
#undef ASM_OUTPUT_LABELREF
|
| 540 |
|
|
#define ASM_OUTPUT_LABELREF(FILE,NAME) \
|
| 541 |
|
|
do { \
|
| 542 |
|
|
const char *xname = (NAME); \
|
| 543 |
|
|
if (! strcmp (xname, "<pic base>")) \
|
| 544 |
|
|
machopic_output_function_base_name(FILE); \
|
| 545 |
|
|
else if (xname[0] == '&' || xname[0] == '*') \
|
| 546 |
|
|
{ \
|
| 547 |
|
|
int len = strlen (xname); \
|
| 548 |
|
|
if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
|
| 549 |
|
|
machopic_validate_stub_or_non_lazy_ptr (xname); \
|
| 550 |
|
|
else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
|
| 551 |
|
|
machopic_validate_stub_or_non_lazy_ptr (xname); \
|
| 552 |
|
|
else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
|
| 553 |
|
|
machopic_validate_stub_or_non_lazy_ptr (xname); \
|
| 554 |
|
|
else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \
|
| 555 |
|
|
machopic_validate_stub_or_non_lazy_ptr (xname); \
|
| 556 |
|
|
if (xname[1] != '"' && name_needs_quotes (&xname[1])) \
|
| 557 |
|
|
fprintf (FILE, "\"%s\"", &xname[1]); \
|
| 558 |
|
|
else \
|
| 559 |
|
|
fputs (&xname[1], FILE); \
|
| 560 |
|
|
} \
|
| 561 |
|
|
else if (xname[0] == '+' || xname[0] == '-') \
|
| 562 |
|
|
fprintf (FILE, "\"%s\"", xname); \
|
| 563 |
|
|
else if (!strncmp (xname, "_OBJC_", 6)) \
|
| 564 |
|
|
fprintf (FILE, "L%s", xname); \
|
| 565 |
|
|
else if (!strncmp (xname, ".objc_class_name_", 17)) \
|
| 566 |
|
|
fprintf (FILE, "%s", xname); \
|
| 567 |
|
|
else if (xname[0] != '"' && name_needs_quotes (xname)) \
|
| 568 |
|
|
fprintf (FILE, "\"%s\"", xname); \
|
| 569 |
|
|
else \
|
| 570 |
|
|
asm_fprintf (FILE, "%U%s", xname); \
|
| 571 |
|
|
} while (0)
|
| 572 |
|
|
|
| 573 |
|
|
/* Output before executable code. */
|
| 574 |
|
|
#undef TEXT_SECTION_ASM_OP
|
| 575 |
|
|
#define TEXT_SECTION_ASM_OP "\t.text"
|
| 576 |
|
|
|
| 577 |
|
|
/* Output before writable data. */
|
| 578 |
|
|
|
| 579 |
|
|
#undef DATA_SECTION_ASM_OP
|
| 580 |
|
|
#define DATA_SECTION_ASM_OP "\t.data"
|
| 581 |
|
|
|
| 582 |
|
|
#undef ALIGN_ASM_OP
|
| 583 |
|
|
#define ALIGN_ASM_OP ".align"
|
| 584 |
|
|
|
| 585 |
|
|
#undef ASM_OUTPUT_ALIGN
|
| 586 |
|
|
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
|
| 587 |
|
|
if ((LOG) != 0) \
|
| 588 |
|
|
fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
|
| 589 |
|
|
|
| 590 |
|
|
/* Ensure correct alignment of bss data. */
|
| 591 |
|
|
|
| 592 |
|
|
#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
|
| 593 |
|
|
#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
|
| 594 |
|
|
do { \
|
| 595 |
|
|
unsigned HOST_WIDE_INT _new_size = SIZE; \
|
| 596 |
|
|
fputs (".lcomm ", (FILE)); \
|
| 597 |
|
|
assemble_name ((FILE), (NAME)); \
|
| 598 |
|
|
if (_new_size == 0) _new_size = 1; \
|
| 599 |
|
|
fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", _new_size, \
|
| 600 |
|
|
floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
|
| 601 |
|
|
if ((DECL) && ((TREE_STATIC (DECL) \
|
| 602 |
|
|
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|
| 603 |
|
|
|| DECL_INITIAL (DECL))) \
|
| 604 |
|
|
{ \
|
| 605 |
|
|
(* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
|
| 606 |
|
|
machopic_define_symbol (DECL_RTL (DECL)); \
|
| 607 |
|
|
} \
|
| 608 |
|
|
} while (0)
|
| 609 |
|
|
|
| 610 |
|
|
/* The maximum alignment which the object file format can support.
|
| 611 |
|
|
For Mach-O, this is 2^15. */
|
| 612 |
|
|
|
| 613 |
|
|
#undef MAX_OFILE_ALIGNMENT
|
| 614 |
|
|
#define MAX_OFILE_ALIGNMENT 0x8000
|
| 615 |
|
|
|
| 616 |
|
|
/* Create new Mach-O sections. */
|
| 617 |
|
|
|
| 618 |
|
|
#undef SECTION_FUNCTION
|
| 619 |
|
|
#define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
|
| 620 |
|
|
extern void FUNCTION (void); \
|
| 621 |
|
|
void \
|
| 622 |
|
|
FUNCTION (void) \
|
| 623 |
|
|
{ \
|
| 624 |
|
|
if (in_section != SECTION) \
|
| 625 |
|
|
{ \
|
| 626 |
|
|
if (OBJC) \
|
| 627 |
|
|
objc_section_init (); \
|
| 628 |
|
|
if (asm_out_file) \
|
| 629 |
|
|
fputs ("\t" DIRECTIVE "\n", asm_out_file); \
|
| 630 |
|
|
in_section = SECTION; \
|
| 631 |
|
|
if ((SECTION == in_text_coal) \
|
| 632 |
|
|
|| (SECTION == in_text_unlikely) \
|
| 633 |
|
|
|| (SECTION == in_text_unlikely_coal)) \
|
| 634 |
|
|
last_text_section = SECTION; \
|
| 635 |
|
|
} \
|
| 636 |
|
|
} \
|
| 637 |
|
|
|
| 638 |
|
|
/* Darwin uses many types of special sections. */
|
| 639 |
|
|
|
| 640 |
|
|
#undef EXTRA_SECTIONS
|
| 641 |
|
|
#define EXTRA_SECTIONS \
|
| 642 |
|
|
in_text_coal, in_text_unlikely, in_text_unlikely_coal, \
|
| 643 |
|
|
in_const, in_const_data, in_cstring, in_literal4, in_literal8, \
|
| 644 |
|
|
in_const_coal, in_const_data_coal, in_data_coal, \
|
| 645 |
|
|
in_constructor, in_destructor, in_mod_init, in_mod_term, \
|
| 646 |
|
|
in_objc_class, in_objc_meta_class, in_objc_category, \
|
| 647 |
|
|
in_objc_class_vars, in_objc_instance_vars, \
|
| 648 |
|
|
in_objc_cls_meth, in_objc_inst_meth, \
|
| 649 |
|
|
in_objc_cat_cls_meth, in_objc_cat_inst_meth, \
|
| 650 |
|
|
in_objc_selector_refs, \
|
| 651 |
|
|
in_objc_selector_fixup, \
|
| 652 |
|
|
in_objc_symbols, in_objc_module_info, \
|
| 653 |
|
|
in_objc_protocol, in_objc_string_object, \
|
| 654 |
|
|
in_objc_constant_string_object, \
|
| 655 |
|
|
in_objc_image_info, \
|
| 656 |
|
|
in_objc_class_names, in_objc_meth_var_names, \
|
| 657 |
|
|
in_objc_meth_var_types, in_objc_cls_refs, \
|
| 658 |
|
|
in_machopic_nl_symbol_ptr, \
|
| 659 |
|
|
in_machopic_lazy_symbol_ptr, \
|
| 660 |
|
|
in_machopic_symbol_stub, \
|
| 661 |
|
|
in_machopic_symbol_stub1, \
|
| 662 |
|
|
in_machopic_picsymbol_stub, \
|
| 663 |
|
|
in_machopic_picsymbol_stub1, \
|
| 664 |
|
|
in_darwin_exception, in_darwin_eh_frame, \
|
| 665 |
|
|
num_sections
|
| 666 |
|
|
|
| 667 |
|
|
#undef EXTRA_SECTION_FUNCTIONS
|
| 668 |
|
|
#define EXTRA_SECTION_FUNCTIONS \
|
| 669 |
|
|
static void objc_section_init (void); \
|
| 670 |
|
|
SECTION_FUNCTION (text_coal_section, \
|
| 671 |
|
|
in_text_coal, \
|
| 672 |
|
|
".section __TEXT,__textcoal_nt,coalesced," \
|
| 673 |
|
|
"pure_instructions", 0) \
|
| 674 |
|
|
SECTION_FUNCTION (text_unlikely_coal_section, \
|
| 675 |
|
|
in_text_unlikely_coal, \
|
| 676 |
|
|
".section __TEXT,__text_unlikely_coal," \
|
| 677 |
|
|
"coalesced,pure_instructions", 0) \
|
| 678 |
|
|
SECTION_FUNCTION (const_section, \
|
| 679 |
|
|
in_const, \
|
| 680 |
|
|
".const", 0) \
|
| 681 |
|
|
SECTION_FUNCTION (const_coal_section, \
|
| 682 |
|
|
in_const_coal, \
|
| 683 |
|
|
".section __TEXT,__const_coal,coalesced", 0) \
|
| 684 |
|
|
SECTION_FUNCTION (const_data_section, \
|
| 685 |
|
|
in_const_data, \
|
| 686 |
|
|
".const_data", 0) \
|
| 687 |
|
|
SECTION_FUNCTION (const_data_coal_section, \
|
| 688 |
|
|
in_const_data_coal, \
|
| 689 |
|
|
".section __DATA,__const_coal,coalesced", 0) \
|
| 690 |
|
|
SECTION_FUNCTION (data_coal_section, \
|
| 691 |
|
|
in_data_coal, \
|
| 692 |
|
|
".section __DATA,__datacoal_nt,coalesced", 0) \
|
| 693 |
|
|
SECTION_FUNCTION (cstring_section, \
|
| 694 |
|
|
in_cstring, \
|
| 695 |
|
|
".cstring", 0) \
|
| 696 |
|
|
SECTION_FUNCTION (literal4_section, \
|
| 697 |
|
|
in_literal4, \
|
| 698 |
|
|
".literal4", 0) \
|
| 699 |
|
|
SECTION_FUNCTION (literal8_section, \
|
| 700 |
|
|
in_literal8, \
|
| 701 |
|
|
".literal8", 0) \
|
| 702 |
|
|
SECTION_FUNCTION (constructor_section, \
|
| 703 |
|
|
in_constructor, \
|
| 704 |
|
|
".constructor", 0) \
|
| 705 |
|
|
SECTION_FUNCTION (mod_init_section, \
|
| 706 |
|
|
in_mod_init, \
|
| 707 |
|
|
".mod_init_func", 0) \
|
| 708 |
|
|
SECTION_FUNCTION (mod_term_section, \
|
| 709 |
|
|
in_mod_term, \
|
| 710 |
|
|
".mod_term_func", 0) \
|
| 711 |
|
|
SECTION_FUNCTION (destructor_section, \
|
| 712 |
|
|
in_destructor, \
|
| 713 |
|
|
".destructor", 0) \
|
| 714 |
|
|
SECTION_FUNCTION (objc_class_section, \
|
| 715 |
|
|
in_objc_class, \
|
| 716 |
|
|
".objc_class", 1) \
|
| 717 |
|
|
SECTION_FUNCTION (objc_meta_class_section, \
|
| 718 |
|
|
in_objc_meta_class, \
|
| 719 |
|
|
".objc_meta_class", 1) \
|
| 720 |
|
|
SECTION_FUNCTION (objc_category_section, \
|
| 721 |
|
|
in_objc_category, \
|
| 722 |
|
|
".objc_category", 1) \
|
| 723 |
|
|
SECTION_FUNCTION (objc_class_vars_section, \
|
| 724 |
|
|
in_objc_class_vars, \
|
| 725 |
|
|
".objc_class_vars", 1) \
|
| 726 |
|
|
SECTION_FUNCTION (objc_instance_vars_section, \
|
| 727 |
|
|
in_objc_instance_vars, \
|
| 728 |
|
|
".objc_instance_vars", 1) \
|
| 729 |
|
|
SECTION_FUNCTION (objc_cls_meth_section, \
|
| 730 |
|
|
in_objc_cls_meth, \
|
| 731 |
|
|
".objc_cls_meth", 1) \
|
| 732 |
|
|
SECTION_FUNCTION (objc_inst_meth_section, \
|
| 733 |
|
|
in_objc_inst_meth, \
|
| 734 |
|
|
".objc_inst_meth", 1) \
|
| 735 |
|
|
SECTION_FUNCTION (objc_cat_cls_meth_section, \
|
| 736 |
|
|
in_objc_cat_cls_meth, \
|
| 737 |
|
|
".objc_cat_cls_meth", 1) \
|
| 738 |
|
|
SECTION_FUNCTION (objc_cat_inst_meth_section, \
|
| 739 |
|
|
in_objc_cat_inst_meth, \
|
| 740 |
|
|
".objc_cat_inst_meth", 1) \
|
| 741 |
|
|
SECTION_FUNCTION (objc_selector_refs_section, \
|
| 742 |
|
|
in_objc_selector_refs, \
|
| 743 |
|
|
".objc_message_refs", 1) \
|
| 744 |
|
|
SECTION_FUNCTION (objc_selector_fixup_section, \
|
| 745 |
|
|
in_objc_selector_fixup, \
|
| 746 |
|
|
".section __OBJC, __sel_fixup, regular, no_dead_strip", 1) \
|
| 747 |
|
|
SECTION_FUNCTION (objc_symbols_section, \
|
| 748 |
|
|
in_objc_symbols, \
|
| 749 |
|
|
".objc_symbols", 1) \
|
| 750 |
|
|
SECTION_FUNCTION (objc_module_info_section, \
|
| 751 |
|
|
in_objc_module_info, \
|
| 752 |
|
|
".objc_module_info", 1) \
|
| 753 |
|
|
SECTION_FUNCTION (objc_protocol_section, \
|
| 754 |
|
|
in_objc_protocol, \
|
| 755 |
|
|
".objc_protocol", 1) \
|
| 756 |
|
|
SECTION_FUNCTION (objc_string_object_section, \
|
| 757 |
|
|
in_objc_string_object, \
|
| 758 |
|
|
".objc_string_object", 1) \
|
| 759 |
|
|
SECTION_FUNCTION (objc_constant_string_object_section, \
|
| 760 |
|
|
in_objc_constant_string_object, \
|
| 761 |
|
|
".section __OBJC, __cstring_object, regular, " \
|
| 762 |
|
|
"no_dead_strip", 1) \
|
| 763 |
|
|
/* Fix-and-Continue image marker. */ \
|
| 764 |
|
|
SECTION_FUNCTION (objc_image_info_section, \
|
| 765 |
|
|
in_objc_image_info, \
|
| 766 |
|
|
".section __OBJC, __image_info, regular, " \
|
| 767 |
|
|
"no_dead_strip", 1) \
|
| 768 |
|
|
SECTION_FUNCTION (objc_class_names_section, \
|
| 769 |
|
|
in_objc_class_names, \
|
| 770 |
|
|
".objc_class_names", 1) \
|
| 771 |
|
|
SECTION_FUNCTION (objc_meth_var_names_section, \
|
| 772 |
|
|
in_objc_meth_var_names, \
|
| 773 |
|
|
".objc_meth_var_names", 1) \
|
| 774 |
|
|
SECTION_FUNCTION (objc_meth_var_types_section, \
|
| 775 |
|
|
in_objc_meth_var_types, \
|
| 776 |
|
|
".objc_meth_var_types", 1) \
|
| 777 |
|
|
SECTION_FUNCTION (objc_cls_refs_section, \
|
| 778 |
|
|
in_objc_cls_refs, \
|
| 779 |
|
|
".objc_cls_refs", 1) \
|
| 780 |
|
|
\
|
| 781 |
|
|
SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \
|
| 782 |
|
|
in_machopic_lazy_symbol_ptr, \
|
| 783 |
|
|
".lazy_symbol_pointer", 0) \
|
| 784 |
|
|
SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \
|
| 785 |
|
|
in_machopic_nl_symbol_ptr, \
|
| 786 |
|
|
".non_lazy_symbol_pointer", 0) \
|
| 787 |
|
|
SECTION_FUNCTION (machopic_symbol_stub_section, \
|
| 788 |
|
|
in_machopic_symbol_stub, \
|
| 789 |
|
|
".symbol_stub", 0) \
|
| 790 |
|
|
SECTION_FUNCTION (machopic_symbol_stub1_section, \
|
| 791 |
|
|
in_machopic_symbol_stub1, \
|
| 792 |
|
|
".section __TEXT,__symbol_stub1,symbol_stubs," \
|
| 793 |
|
|
"pure_instructions,16", 0) \
|
| 794 |
|
|
SECTION_FUNCTION (machopic_picsymbol_stub_section, \
|
| 795 |
|
|
in_machopic_picsymbol_stub, \
|
| 796 |
|
|
".picsymbol_stub", 0) \
|
| 797 |
|
|
SECTION_FUNCTION (machopic_picsymbol_stub1_section, \
|
| 798 |
|
|
in_machopic_picsymbol_stub1, \
|
| 799 |
|
|
".section __TEXT,__picsymbolstub1,symbol_stubs," \
|
| 800 |
|
|
"pure_instructions,32", 0) \
|
| 801 |
|
|
SECTION_FUNCTION (darwin_exception_section, \
|
| 802 |
|
|
in_darwin_exception, \
|
| 803 |
|
|
".section __DATA,__gcc_except_tab", 0) \
|
| 804 |
|
|
SECTION_FUNCTION (darwin_eh_frame_section, \
|
| 805 |
|
|
in_darwin_eh_frame, \
|
| 806 |
|
|
".section " EH_FRAME_SECTION_NAME ",__eh_frame" \
|
| 807 |
|
|
EH_FRAME_SECTION_ATTR, 0) \
|
| 808 |
|
|
\
|
| 809 |
|
|
static void \
|
| 810 |
|
|
objc_section_init (void) \
|
| 811 |
|
|
{ \
|
| 812 |
|
|
static int been_here = 0; \
|
| 813 |
|
|
\
|
| 814 |
|
|
if (been_here == 0) \
|
| 815 |
|
|
{ \
|
| 816 |
|
|
been_here = 1; \
|
| 817 |
|
|
/* written, cold -> hot */ \
|
| 818 |
|
|
objc_cat_cls_meth_section (); \
|
| 819 |
|
|
objc_cat_inst_meth_section (); \
|
| 820 |
|
|
objc_string_object_section (); \
|
| 821 |
|
|
objc_constant_string_object_section (); \
|
| 822 |
|
|
objc_selector_refs_section (); \
|
| 823 |
|
|
objc_selector_fixup_section (); \
|
| 824 |
|
|
objc_cls_refs_section (); \
|
| 825 |
|
|
objc_class_section (); \
|
| 826 |
|
|
objc_meta_class_section (); \
|
| 827 |
|
|
/* shared, hot -> cold */ \
|
| 828 |
|
|
objc_cls_meth_section (); \
|
| 829 |
|
|
objc_inst_meth_section (); \
|
| 830 |
|
|
objc_protocol_section (); \
|
| 831 |
|
|
objc_class_names_section (); \
|
| 832 |
|
|
objc_meth_var_types_section (); \
|
| 833 |
|
|
objc_meth_var_names_section (); \
|
| 834 |
|
|
objc_category_section (); \
|
| 835 |
|
|
objc_class_vars_section (); \
|
| 836 |
|
|
objc_instance_vars_section (); \
|
| 837 |
|
|
objc_module_info_section (); \
|
| 838 |
|
|
objc_symbols_section (); \
|
| 839 |
|
|
} \
|
| 840 |
|
|
}
|
| 841 |
|
|
|
| 842 |
|
|
#define READONLY_DATA_SECTION const_section
|
| 843 |
|
|
|
| 844 |
|
|
#undef TARGET_ASM_SELECT_SECTION
|
| 845 |
|
|
#define TARGET_ASM_SELECT_SECTION machopic_select_section
|
| 846 |
|
|
#define USE_SELECT_SECTION_FOR_FUNCTIONS
|
| 847 |
|
|
|
| 848 |
|
|
#undef TARGET_ASM_SELECT_RTX_SECTION
|
| 849 |
|
|
#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
|
| 850 |
|
|
#undef TARGET_ASM_UNIQUE_SECTION
|
| 851 |
|
|
#define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
|
| 852 |
|
|
#undef TARGET_ASM_FUNCTION_RODATA_SECTION
|
| 853 |
|
|
#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
|
| 854 |
|
|
|
| 855 |
|
|
|
| 856 |
|
|
#define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
|
| 857 |
|
|
do { \
|
| 858 |
|
|
if (FILE) { \
|
| 859 |
|
|
if (MACHOPIC_INDIRECT) \
|
| 860 |
|
|
fprintf (FILE, "\t.lazy_reference "); \
|
| 861 |
|
|
else \
|
| 862 |
|
|
fprintf (FILE, "\t.reference "); \
|
| 863 |
|
|
assemble_name (FILE, NAME); \
|
| 864 |
|
|
fprintf (FILE, "\n"); \
|
| 865 |
|
|
} \
|
| 866 |
|
|
} while (0)
|
| 867 |
|
|
|
| 868 |
|
|
#define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME) \
|
| 869 |
|
|
do { \
|
| 870 |
|
|
if (FILE) { \
|
| 871 |
|
|
fprintf (FILE, "\t"); \
|
| 872 |
|
|
assemble_name (FILE, NAME); \
|
| 873 |
|
|
fprintf (FILE, "=0\n"); \
|
| 874 |
|
|
(*targetm.asm_out.globalize_label) (FILE, NAME); \
|
| 875 |
|
|
} \
|
| 876 |
|
|
} while (0)
|
| 877 |
|
|
|
| 878 |
|
|
/* Globalizing directive for a label. */
|
| 879 |
|
|
#define GLOBAL_ASM_OP ".globl "
|
| 880 |
|
|
#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
|
| 881 |
|
|
|
| 882 |
|
|
/* Emit an assembler directive to set visibility for a symbol. Used
|
| 883 |
|
|
to support visibility attribute and Darwin's private extern
|
| 884 |
|
|
feature. */
|
| 885 |
|
|
#undef TARGET_ASM_ASSEMBLE_VISIBILITY
|
| 886 |
|
|
#define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
|
| 887 |
|
|
|
| 888 |
|
|
/* Extra attributes for Darwin. */
|
| 889 |
|
|
#define SUBTARGET_ATTRIBUTE_TABLE \
|
| 890 |
|
|
/* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
|
| 891 |
|
|
{ "weak_import", 0, 0, true, false, false, \
|
| 892 |
|
|
darwin_handle_weak_import_attribute }
|
| 893 |
|
|
|
| 894 |
|
|
#undef ASM_GENERATE_INTERNAL_LABEL
|
| 895 |
|
|
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
|
| 896 |
|
|
sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
|
| 897 |
|
|
|
| 898 |
|
|
#undef TARGET_ASM_MARK_DECL_PRESERVED
|
| 899 |
|
|
#define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
|
| 900 |
|
|
|
| 901 |
|
|
/* Set on a symbol with SYMBOL_FLAG_FUNCTION or
|
| 902 |
|
|
MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
|
| 903 |
|
|
variable has been defined in this translation unit. */
|
| 904 |
|
|
|
| 905 |
|
|
#define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
|
| 906 |
|
|
#define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
|
| 907 |
|
|
|
| 908 |
|
|
/* Set on a symbol to indicate when fix-and-continue style code
|
| 909 |
|
|
generation is being used and the symbol refers to a static symbol
|
| 910 |
|
|
that should be rebound from new instances of a translation unit to
|
| 911 |
|
|
the original instance of the data. */
|
| 912 |
|
|
|
| 913 |
|
|
#define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
|
| 914 |
|
|
|
| 915 |
|
|
/* Symbolic names for various things we might know about a symbol. */
|
| 916 |
|
|
|
| 917 |
|
|
enum machopic_addr_class {
|
| 918 |
|
|
MACHOPIC_UNDEFINED,
|
| 919 |
|
|
MACHOPIC_DEFINED_DATA,
|
| 920 |
|
|
MACHOPIC_UNDEFINED_DATA,
|
| 921 |
|
|
MACHOPIC_DEFINED_FUNCTION,
|
| 922 |
|
|
MACHOPIC_UNDEFINED_FUNCTION
|
| 923 |
|
|
};
|
| 924 |
|
|
|
| 925 |
|
|
/* Macros defining the various PIC cases. */
|
| 926 |
|
|
|
| 927 |
|
|
#define MACHO_DYNAMIC_NO_PIC_P (TARGET_DYNAMIC_NO_PIC)
|
| 928 |
|
|
#define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
|
| 929 |
|
|
#define MACHOPIC_JUST_INDIRECT (flag_pic == 1 || MACHO_DYNAMIC_NO_PIC_P)
|
| 930 |
|
|
#define MACHOPIC_PURE (flag_pic == 2 && ! MACHO_DYNAMIC_NO_PIC_P)
|
| 931 |
|
|
|
| 932 |
|
|
#undef TARGET_ENCODE_SECTION_INFO
|
| 933 |
|
|
#define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
|
| 934 |
|
|
#undef TARGET_STRIP_NAME_ENCODING
|
| 935 |
|
|
#define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
|
| 936 |
|
|
|
| 937 |
|
|
#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
|
| 938 |
|
|
do { \
|
| 939 |
|
|
const char *const stub_ = (STUB); \
|
| 940 |
|
|
char *buffer_ = (BUF); \
|
| 941 |
|
|
strcpy (buffer_, stub_); \
|
| 942 |
|
|
if (stub_[0] == '"') \
|
| 943 |
|
|
{ \
|
| 944 |
|
|
strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \
|
| 945 |
|
|
} \
|
| 946 |
|
|
else \
|
| 947 |
|
|
{ \
|
| 948 |
|
|
strcpy (buffer_ + (STUB_LENGTH), "_binder"); \
|
| 949 |
|
|
} \
|
| 950 |
|
|
} while (0)
|
| 951 |
|
|
|
| 952 |
|
|
#define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
|
| 953 |
|
|
do { \
|
| 954 |
|
|
const char *const symbol_ = (SYMBOL); \
|
| 955 |
|
|
char *buffer_ = (BUF); \
|
| 956 |
|
|
if (name_needs_quotes (symbol_) && symbol_[0] != '"') \
|
| 957 |
|
|
{ \
|
| 958 |
|
|
sprintf (buffer_, "\"%s\"", symbol_); \
|
| 959 |
|
|
} \
|
| 960 |
|
|
else \
|
| 961 |
|
|
{ \
|
| 962 |
|
|
strcpy (buffer_, symbol_); \
|
| 963 |
|
|
} \
|
| 964 |
|
|
} while (0)
|
| 965 |
|
|
|
| 966 |
|
|
/* Given a symbol name string, create the lazy pointer version
|
| 967 |
|
|
of the symbol name. */
|
| 968 |
|
|
|
| 969 |
|
|
#define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
|
| 970 |
|
|
do { \
|
| 971 |
|
|
const char *symbol_ = (SYMBOL); \
|
| 972 |
|
|
char *buffer_ = (BUF); \
|
| 973 |
|
|
if (symbol_[0] == '"') \
|
| 974 |
|
|
{ \
|
| 975 |
|
|
strcpy (buffer_, "\"L"); \
|
| 976 |
|
|
strcpy (buffer_ + 2, symbol_ + 1); \
|
| 977 |
|
|
strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
|
| 978 |
|
|
} \
|
| 979 |
|
|
else if (name_needs_quotes (symbol_)) \
|
| 980 |
|
|
{ \
|
| 981 |
|
|
strcpy (buffer_, "\"L"); \
|
| 982 |
|
|
strcpy (buffer_ + 2, symbol_); \
|
| 983 |
|
|
strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \
|
| 984 |
|
|
} \
|
| 985 |
|
|
else \
|
| 986 |
|
|
{ \
|
| 987 |
|
|
strcpy (buffer_, "L"); \
|
| 988 |
|
|
strcpy (buffer_ + 1, symbol_); \
|
| 989 |
|
|
strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \
|
| 990 |
|
|
} \
|
| 991 |
|
|
} while (0)
|
| 992 |
|
|
|
| 993 |
|
|
#define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
|
| 994 |
|
|
|
| 995 |
|
|
#define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
|
| 996 |
|
|
|
| 997 |
|
|
#define EH_FRAME_SECTION_NAME "__TEXT"
|
| 998 |
|
|
#define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
|
| 999 |
|
|
|
| 1000 |
|
|
/* Java runtime class list. */
|
| 1001 |
|
|
#define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
|
| 1002 |
|
|
|
| 1003 |
|
|
#undef ASM_PREFERRED_EH_DATA_FORMAT
|
| 1004 |
|
|
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
|
| 1005 |
|
|
(((CODE) == 2 && (GLOBAL) == 1) \
|
| 1006 |
|
|
? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \
|
| 1007 |
|
|
((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
|
| 1008 |
|
|
|
| 1009 |
|
|
#define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \
|
| 1010 |
|
|
darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
|
| 1011 |
|
|
|
| 1012 |
|
|
#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \
|
| 1013 |
|
|
if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \
|
| 1014 |
|
|
darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \
|
| 1015 |
|
|
goto DONE; \
|
| 1016 |
|
|
}
|
| 1017 |
|
|
|
| 1018 |
|
|
/* Experimentally, putting jump tables in text is faster on SPEC.
|
| 1019 |
|
|
Also this is needed for correctness for coalesced functions. */
|
| 1020 |
|
|
|
| 1021 |
|
|
#ifndef JUMP_TABLES_IN_TEXT_SECTION
|
| 1022 |
|
|
#define JUMP_TABLES_IN_TEXT_SECTION 1
|
| 1023 |
|
|
#endif
|
| 1024 |
|
|
|
| 1025 |
|
|
#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
|
| 1026 |
|
|
|
| 1027 |
|
|
#undef TARGET_ASM_NAMED_SECTION
|
| 1028 |
|
|
#define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
|
| 1029 |
|
|
|
| 1030 |
|
|
#define DARWIN_REGISTER_TARGET_PRAGMAS() \
|
| 1031 |
|
|
do { \
|
| 1032 |
|
|
c_register_pragma (0, "mark", darwin_pragma_ignore); \
|
| 1033 |
|
|
c_register_pragma (0, "options", darwin_pragma_options); \
|
| 1034 |
|
|
c_register_pragma (0, "segment", darwin_pragma_ignore); \
|
| 1035 |
|
|
c_register_pragma (0, "unused", darwin_pragma_unused); \
|
| 1036 |
|
|
} while (0)
|
| 1037 |
|
|
|
| 1038 |
|
|
#undef ASM_APP_ON
|
| 1039 |
|
|
#define ASM_APP_ON ""
|
| 1040 |
|
|
#undef ASM_APP_OFF
|
| 1041 |
|
|
#define ASM_APP_OFF ""
|
| 1042 |
|
|
|
| 1043 |
|
|
void darwin_register_frameworks (const char *, const char *, int);
|
| 1044 |
|
|
void darwin_register_objc_includes (const char *, const char *, int);
|
| 1045 |
|
|
#define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes
|
| 1046 |
|
|
#define TARGET_EXTRA_INCLUDES darwin_register_frameworks
|
| 1047 |
|
|
|
| 1048 |
|
|
void add_framework_path (char *);
|
| 1049 |
|
|
#define TARGET_OPTF add_framework_path
|
| 1050 |
|
|
|
| 1051 |
|
|
#define TARGET_POSIX_IO
|
| 1052 |
|
|
|
| 1053 |
|
|
/* All new versions of Darwin have C99 functions. */
|
| 1054 |
|
|
#define TARGET_C99_FUNCTIONS 1
|
| 1055 |
|
|
|
| 1056 |
|
|
#define WINT_TYPE "int"
|
| 1057 |
|
|
|
| 1058 |
|
|
#endif /* CONFIG_DARWIN_H */
|
