/* Target definitions for Darwin (Mac OS X) systems.
- Copyright (C) 1989-2013 Free Software Foundation, Inc.
+ Copyright (C) 1989-2017 Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
This file is part of GCC.
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 } } \
- %{%:sanitize(address): -lasan } \
+ %{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*} \
#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 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 */
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