/* 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
+ 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
/* Default to using the NeXT-style runtime, since that's what is
pre-installed on Darwin systems. */
-#define NEXT_OBJC_RUNTIME
+#define NEXT_OBJC_RUNTIME 1
/* Don't default to pcc-struct-return, because gcc is the only compiler, and
we want to retain compatibility with older gcc versions. */
} 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) \
#define LINK_COMMAND_SPEC_A \
"%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
- %(linker) \
- %{flto*:%<fcompare-debug*} \
+ %(linker)" \
+ LINK_PLUGIN_SPEC \
+ "%{flto*:%<fcompare-debug*} \
%{flto*} \
%l %X %{s} %{t} %{Z} %{u*} \
%{e*} %{r} \
%{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
%{fopenmp|ftree-parallelize-loops=*: \
%{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
+ %{fgnu-tm: \
+ %{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \
%{!nostdlib:%{!nodefaultlibs:\
%(link_ssp) %(link_gcc_c_sequence)\
}}\
#define LINK_SYSROOT_SPEC "%{isysroot*:-syslibroot %*}"
#endif
+#define 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
multiple times on a command line with different arguments each time,
%:version-compare(< 10.5 mmacosx-version-min= -multiply_defined) \
%:version-compare(< 10.5 mmacosx-version-min= suppress)}} \
%{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
- %{fpie:-pie} \
+ " PIE_SPEC " \
%{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
%{read_only_relocs} \
%{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
- "%{Zdynamiclib: %(darwin_dylib1) } \
- %{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \
+ "%{Zdynamiclib: %(darwin_dylib1) %{fgnu-tm: -lcrttms.o}} \
+ %{!Zdynamiclib:%{Zbundle:%{!static: \
+ %:version-compare(< 10.6 mmacosx-version-min= -lbundle1.o) \
+ %{fgnu-tm: -lcrttms.o}}} \
%{!Zbundle:%{pg:%{static:-lgcrt0.o} \
%{!static:%{object:-lgcrt0.o} \
%{!object:%{preload:-lgcrt0.o} \
%(darwin_crt2)}}}}}} \
%{shared-libgcc:%:version-compare(< 10.5 mmacosx-version-min= crt3.o%s)}"
-/* 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 want a destructor last in the list. */
+#define ENDFILE_SPEC "%{fgnu-tm: -lcrttme.o}"
#define DARWIN_EXTRA_SPECS \
{ "darwin_crt1", DARWIN_CRT1_SPEC }, \
#define DARWIN_DYLIB1_SPEC \
"%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \
- %:version-compare(>= 10.5 mmacosx-version-min= -ldylib1.10.5.o)"
+ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -ldylib1.10.5.o)"
#define DARWIN_CRT1_SPEC \
"%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o) \
- %:version-compare(>= 10.5 mmacosx-version-min= -lcrt1.10.5.o)"
+ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lcrt1.10.5.o) \
+ %:version-compare(>= 10.6 mmacosx-version-min= -lcrt1.10.6.o) \
+ %{fgnu-tm: -lcrttms.o}"
/* Default Darwin ASM_SPEC, very simple. */
#define ASM_SPEC "-arch %(darwin_arch) \
%{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
%{static}"
+/* 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. */
#define DBX_DEBUGGING_INFO 1
#define DEBUG_PUBTYPES_SECTION "__DWARF,__debug_pubtypes,regular,debug"
#define DEBUG_STR_SECTION "__DWARF,__debug_str,regular,debug"
#define DEBUG_RANGES_SECTION "__DWARF,__debug_ranges,regular,debug"
+#define DEBUG_MACRO_SECTION "__DWARF,__debug_macro,regular,debug"
#define TARGET_WANT_DEBUG_PUB_SECTIONS true
} \
else if (xname[0] == '+' || xname[0] == '-') \
fprintf (FILE, "\"%s\"", xname); \
- else if (darwin_label_is_anonymous_local_objc_name (xname)) \
+ else if (darwin_label_is_anonymous_local_objc_name (xname)) \
fprintf (FILE, "L%s", xname); \
else if (!strncmp (xname, ".objc_class_name_", 17)) \
fprintf (FILE, "%s", xname); \
else if (xname[0] != '"' && name_needs_quotes (xname)) \
- fprintf (FILE, "\"%s\"", xname); \
+ asm_fprintf (FILE, "\"%U%s\"", xname); \
else \
asm_fprintf (FILE, "%U%s", xname); \
} while (0)
/* The generic version, archs should over-ride where required. */
#define MACHOPIC_NL_SYMBOL_PTR_SECTION ".non_lazy_symbol_pointer"
-/* Private flag applied to disable section-anchors in a particular section.
- This needs to be kept in sync with the flags used by varasm.c (defined in
- output.h). */
-#define SECTION_NO_ANCHOR 0x2000000
-
/* Declare the section variables. */
#ifndef USED_FOR_TARGET
enum darwin_section_enum {
#undef TARGET_ASM_SELECT_SECTION
#define TARGET_ASM_SELECT_SECTION machopic_select_section
-#define USE_SELECT_SECTION_FOR_FUNCTIONS
+
#undef TARGET_ASM_FUNCTION_SECTION
#define TARGET_ASM_FUNCTION_SECTION darwin_function_section
+#undef TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS
+#define TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS \
+ darwin_function_switched_text_sections
+
#undef TARGET_ASM_SELECT_RTX_SECTION
#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
#undef TARGET_ASM_UNIQUE_SECTION
#define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
#undef TARGET_ASM_FUNCTION_RODATA_SECTION
#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
+
+#undef TARGET_ASM_TM_CLONE_TABLE_SECTION
+#define TARGET_ASM_TM_CLONE_TABLE_SECTION darwin_tm_clone_table_section
+
#undef TARGET_ASM_RELOC_RW_MASK
#define TARGET_ASM_RELOC_RW_MASK machopic_reloc_rw_mask
/* Extra attributes for Darwin. */
#define SUBTARGET_ATTRIBUTE_TABLE \
- /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \
+ /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, \
+ affects_type_identity } */ \
{ "apple_kext_compatibility", 0, 0, false, true, false, \
- darwin_handle_kext_attribute }, \
+ darwin_handle_kext_attribute, false }, \
{ "weak_import", 0, 0, true, false, false, \
- darwin_handle_weak_import_attribute }
+ darwin_handle_weak_import_attribute, false }
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
#undef GOMP_SELF_SPECS
#define GOMP_SELF_SPECS ""
+#undef GTM_SELF_SPECS
+#define GTM_SELF_SPECS ""
/* Darwin disables section anchors by default.
They should be enabled per arch where support exists in that arch. */
#define TARGET_ASM_OUTPUT_ANCHOR NULL
#define DARWIN_SECTION_ANCHORS 0
-/* Attempt to turn on execute permission for the stack. This may be
- used by TARGET_TRAMPOLINE_INIT if the target needs it (that is,
- if the target machine can change execute permissions on a page).
-
- There is no way to query the execute permission of the stack, so
- we always issue the mprotect() call.
-
- Unfortunately it is not possible to make this namespace-clean.
-
- Also note that no errors should be emitted by this code; it is
- considered dangerous for library calls to send messages to
- stdout/stderr. */
-
-#define ENABLE_EXECUTE_STACK \
-extern void __enable_execute_stack (void *); \
-void \
-__enable_execute_stack (void *addr) \
-{ \
- extern int mprotect (void *, size_t, int); \
- extern int getpagesize (void); \
- static int size; \
- static long mask; \
- \
- char *page, *end; \
- \
- if (size == 0) \
- { \
- size = getpagesize(); \
- mask = ~((long) size - 1); \
- } \
- \
- page = (char *) (((long) addr) & mask); \
- end = (char *) ((((long) (addr + (TARGET_64BIT ? 48 : 40))) & mask) + size); \
- \
- /* 7 == PROT_READ | PROT_WRITE | PROT_EXEC */ \
- (void) mprotect (page, end - page, 7); \
-}
+#define HAVE_ENABLE_EXECUTE_STACK
/* For Apple KEXTs, we make the constructors return this to match gcc
2.95. */
/* We have target-specific builtins. */
#define TARGET_FOLD_BUILTIN darwin_fold_builtin
-#define TARGET_OBJC_CONSTRUCT_STRING_OBJECT \
- darwin_objc_construct_string
-
-#define TARGET_STRING_OBJECT_REF_TYPE_P \
- darwin_cfstring_ref_p
-
#define TARGET_N_FORMAT_TYPES 1
#define TARGET_FORMAT_TYPES darwin_additional_format_types
-#define TARGET_CHECK_STRING_OBJECT_FORMAT_ARG \
- darwin_check_cfstring_format_arg
-
-#define TARGET_HAS_TARGETCM 1
-
-extern void darwin_driver_init (unsigned int *decoded_options_count,
- struct cl_decoded_option **decoded_options);
+#ifndef USED_FOR_TARGET
+extern void darwin_driver_init (unsigned int *,struct cl_decoded_option **);
#define GCC_DRIVER_HOST_INITIALIZATION \
darwin_driver_init (&decoded_options_count, &decoded_options)
+#endif
/* The Apple assembler and linker do not support constructor priorities. */
#undef SUPPORTS_INIT_PRIORITY
#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"
+
#endif /* CONFIG_DARWIN_H */
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