/* Target definitions for Darwin (Mac OS X) systems.
- Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1989-2017 Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
This file is part of GCC.
} while (0)
#define SUBTARGET_C_COMMON_OVERRIDE_OPTIONS do { \
- if (!global_options_set.x_flag_objc_sjlj_exceptions) \
- global_options.x_flag_objc_sjlj_exceptions = \
- flag_next_runtime && !TARGET_64BIT; \
if (flag_mkernel || flag_apple_kext) \
{ \
if (flag_use_cxa_atexit == 2) \
specifying the handling of options understood by generic Unix
linkers, and for positional arguments like libraries. */
+#if LD64_HAS_EXPORT_DYNAMIC
+#define DARWIN_EXPORT_DYNAMIC " %{rdynamic:-export_dynamic}"
+#else
+#define DARWIN_EXPORT_DYNAMIC " %{rdynamic: %nrdynamic is not supported}"
+#endif
+
#define LINK_COMMAND_SPEC_A \
"%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
%(linker)" \
LINK_PLUGIN_SPEC \
"%{flto*:%<fcompare-debug*} \
%{flto*} \
- %l %X %{s} %{t} %{Z} %{u*} \
+ %l " LINK_COMPRESS_DEBUG_SPEC \
+ "%X %{s} %{t} %{Z} %{u*} \
%{e*} %{r} \
%{o*}%{!o:-o a.out} \
%{!nostdlib:%{!nostartfiles:%S}} \
%{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
- %{fopenmp|ftree-parallelize-loops=*: \
+ %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): \
%{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
+ %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
%{fgnu-tm: \
%{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \
%{!nostdlib:%{!nodefaultlibs:\
- %(link_ssp) %(link_gcc_c_sequence)\
+ %{%:sanitize(address): -lasan } \
+ %{%:sanitize(undefined): -lubsan } \
+ %(link_ssp) \
+ " DARWIN_EXPORT_DYNAMIC " %<rdynamic \
+ %(link_gcc_c_sequence) \
}}\
%{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"
#undef LINK_GCC_C_SEQUENCE_SPEC
#define LINK_GCC_C_SEQUENCE_SPEC "%G %L"
-#ifdef TARGET_SYSTEM_ROOT
-#define LINK_SYSROOT_SPEC \
- "%{isysroot*:-syslibroot %*;:-syslibroot " TARGET_SYSTEM_ROOT "}"
-#else
+/* ld64 supports a sysroot, it just has a different name and there's no easy
+ way to check for it at config time. */
+#undef HAVE_LD_SYSROOT
+#define HAVE_LD_SYSROOT 1
+/* It seems the only (working) way to get a space after %R is to append a
+ dangling '/'. */
+#define SYSROOT_SPEC "%{!isysroot*:-syslibroot %R/ }"
+
+/* Do the same as clang, for now, and insert the sysroot for ld when an
+ isysroot is specified. */
#define LINK_SYSROOT_SPEC "%{isysroot*:-syslibroot %*}"
-#endif
-#define PIE_SPEC "%{fpie|pie|fPIE:}"
+/* Suppress the addition of extra prefix paths when a sysroot is in use. */
+#define STANDARD_STARTFILE_PREFIX_1 ""
+#define STANDARD_STARTFILE_PREFIX_2 ""
+
+#define DARWIN_PIE_SPEC "%{fpie|pie|fPIE:}"
/* Please keep the random linker options in alphabetical order (modulo
'Z' and 'no' prefixes). Note that options taking arguments may appear
%{headerpad_max_install_names} \
%{Zimage_base*:-image_base %*} \
%{Zinit*:-init %*} \
- %{!mmacosx-version-min=*:-macosx_version_min %(darwin_minversion)} \
%{mmacosx-version-min=*:-macosx_version_min %*} \
%{nomultidefs} \
%{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
%:version-compare(< 10.5 mmacosx-version-min= -multiply_defined) \
%:version-compare(< 10.5 mmacosx-version-min= suppress)}} \
%{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
- " PIE_SPEC " \
+ " DARWIN_PIE_SPEC " \
%{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
%{read_only_relocs} \
%{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
%{shared-libgcc:%:version-compare(< 10.5 mmacosx-version-min= crt3.o%s)}"
/* We want a destructor last in the list. */
-#define ENDFILE_SPEC "%{fgnu-tm: -lcrttme.o}"
+#define TM_DESTRUCTOR "%{fgnu-tm: -lcrttme.o}"
+#define ENDFILE_SPEC TM_DESTRUCTOR
#define DARWIN_EXTRA_SPECS \
{ "darwin_crt1", DARWIN_CRT1_SPEC }, \
- { "darwin_dylib1", DARWIN_DYLIB1_SPEC }, \
- { "darwin_minversion", DARWIN_MINVERSION_SPEC },
+ { "darwin_dylib1", DARWIN_DYLIB1_SPEC },
#define DARWIN_DYLIB1_SPEC \
"%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \
%:version-compare(>< 10.6 10.8 mmacosx-version-min= -lcrt1.10.6.o) \
%{fgnu-tm: -lcrttms.o}"
-/* Default Darwin ASM_SPEC, very simple. */
+#ifdef HAVE_AS_MMACOSX_VERSION_MIN_OPTION
+/* Emit macosx version (but only major). */
+#define ASM_MMACOSX_VERSION_MIN_SPEC \
+ " %{asm_macosx_version_min=*: -mmacosx-version-min=%*} %<asm_macosx_version_min=*"
+#else
+#define ASM_MMACOSX_VERSION_MIN_SPEC " %<asm_macosx_version_min=*"
+#endif
+
+/* When we detect that we're cctools or llvm as, we need to insert the right
+ additional options. */
+#if HAVE_GNU_AS
+#define ASM_OPTIONS ""
+#else
+#define ASM_OPTIONS "%{v} %{w:-W} %{I*}"
+#endif
+
+/* Default Darwin ASM_SPEC, very simple. */
#define ASM_SPEC "-arch %(darwin_arch) \
+ " ASM_OPTIONS " \
%{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
- %{static}"
+ %{static}" ASM_MMACOSX_VERSION_MIN_SPEC
/* Default ASM_DEBUG_SPEC. Darwin's as cannot currently produce dwarf
debugging data. */
#define ASM_DEBUG_SPEC "%{g*:%{!g0:%{!gdwarf*:--gstabs}}}"
-/* We still allow output of STABS. */
-
+/* We still allow output of STABS if the assembler supports it. */
+#ifdef HAVE_AS_STABS_DIRECTIVE
#define DBX_DEBUGGING_INFO 1
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#endif
#define DWARF2_DEBUGGING_INFO 1
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
#define DEBUG_FRAME_SECTION "__DWARF,__debug_frame,regular,debug"
#define DEBUG_INFO_SECTION "__DWARF,__debug_info,regular,debug"
#define TARGET_WANT_DEBUG_PUB_SECTIONS true
-#define TARGET_FORCE_AT_COMP_DIR true
-
/* When generating stabs debugging, use N_BINCL entries. */
#define DBX_USE_BINCL
#define NO_PROFILE_COUNTERS 1
#undef INIT_SECTION_ASM_OP
-#define INIT_SECTION_ASM_OP
+#define INIT_SECTION_ASM_OP ""
#undef INVOKE__main
#define TARGET_ASM_LTO_END darwin_asm_lto_end
#define ASM_OUTPUT_SKIP(FILE,SIZE) \
- fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
+ fprintf (FILE, "\t.space " HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
/* Give ObjC methods pretty symbol names. */
{ "weak_import", 0, 0, true, false, false, \
darwin_handle_weak_import_attribute, false }
+/* Make local constant labels linker-visible, so that if one follows a
+ weak_global constant, ld64 will be able to separate the atoms. */
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
+ do { \
+ if (strcmp ("LC", PREFIX) == 0) \
+ sprintf (LABEL, "*%s%ld", "lC", (long)(NUM)); \
+ else \
+ sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM)); \
+ } while (0)
#undef TARGET_ASM_MARK_DECL_PRESERVED
#define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
#define EH_FRAME_SECTION_NAME "__TEXT"
#define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
-/* Java runtime class list. */
-#define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
-
#undef ASM_PREFERRED_EH_DATA_FORMAT
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
(((CODE) == 2 && (GLOBAL) == 1) \
((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)
+ darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2, 0)
-#define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,BASE) \
- darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, BASE)
+#define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,OFFSET,BASE) \
+ darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, OFFSET, BASE)
#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \
if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \
#define TARGET_POSIX_IO
-/* All new versions of Darwin have C99 functions. */
-
-#define TARGET_C99_FUNCTIONS 1
-
#define WINT_TYPE "int"
/* Every program on darwin links against libSystem which contains the pthread
#define TARGET_KEXTABI flag_apple_kext
/* We have target-specific builtins. */
-#define TARGET_FOLD_BUILTIN darwin_fold_builtin
+#define SUBTARGET_FOLD_BUILTIN darwin_fold_builtin
#define TARGET_N_FORMAT_TYPES 1
#define TARGET_FORMAT_TYPES darwin_additional_format_types
#define SUPPORTS_INIT_PRIORITY 0
/* When building cross-compilers (and native crosses) we shall default to
- providing an osx-version-min of this unless overridden by the User. */
-#define DEF_MIN_OSX_VERSION "10.4"
+ providing an osx-version-min of this unless overridden by the User.
+ 10.5 is the only version that fully supports all our archs so that's the
+ fall-back default. */
+#define DEF_MIN_OSX_VERSION "10.5"
+
+/* Later versions of ld64 support coalescing weak code/data without requiring
+ that they be placed in specially identified sections. This is the earliest
+ _tested_ version known to support this so far. */
+#define MIN_LD64_NO_COAL_SECTS "236.4"
+
+#ifndef LD64_VERSION
+#define LD64_VERSION "85.2"
+#else
+#define DEF_LD64 LD64_VERSION
+#endif
#endif /* CONFIG_DARWIN_H */