/* 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.
} while (0)
#define SUBTARGET_C_COMMON_OVERRIDE_OPTIONS do { \
+ /* Unless set, force ABI=2 for NeXT and m64, 0 otherwise. */ \
+ if (!global_options_set.x_flag_objc_abi) \
+ global_options.x_flag_objc_abi \
+ = (flag_next_runtime && TARGET_64BIT) ? 2 : 0; \
+ /* Objective-C family ABI 2 is only valid for next/m64 at present. */ \
+ if (global_options_set.x_flag_objc_abi && flag_next_runtime) \
+ if (TARGET_64BIT && global_options.x_flag_objc_abi < 2) \
+ error_at (UNKNOWN_LOCATION, "%<-fobjc-abi-version%> >= 2 is only" \
+ " supported on %<-m64%> targets for" \
+ " %<-fnext-runtime%>"); \
+ /* Sort out ObjC exceptions: If the runtime is NeXT we default to \
+ sjlj for m32 only. */ \
+ 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) \
%(linker) \
%{flto*:%<fcompare-debug*} \
%{flto*} \
- %l %X %{d} %{s} %{t} %{Z} %{u*} \
- %{A} %{e*} %{m} %{r} \
+ %l %X %{s} %{t} %{Z} %{u*} \
+ %{e*} %{r} \
%{o*}%{!o:-o a.out} \
- %{!A:%{!nostdlib:%{!nostartfiles:%S}}} \
+ %{!nostdlib:%{!nostartfiles:%S}} \
%{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 } } \
%{!nostdlib:%{!nodefaultlibs:\
%(link_ssp) %(link_gcc_c_sequence)\
}}\
- %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}"
+ %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"
#define DSYMUTIL "\ndsymutil"
#define DSYMUTIL_SPEC \
"%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
+ %{v} \
+ %{gdwarf-2:%{!gstabs*:%{!g0: -idsym}}}\
%{.c|.cc|.C|.cpp|.cp|.c++|.cxx|.CPP|.m|.mm: \
- %{gdwarf-2:%{!gstabs*:%{!g0: " DSYMUTIL " %{o*:%*}%{!o:a.out}}}}}}}}}}}}"
+ %{gdwarf-2:%{!gstabs*:%{!g0: -dsym}}}}}}}}}}}"
#define LINK_COMMAND_SPEC LINK_COMMAND_SPEC_A DSYMUTIL_SPEC
+/* Tell collect2 to run dsymutil for us as necessary. */
+#define COLLECT_RUN_DSYMUTIL 1
+
/* We only want one instance of %G, since libSystem (Darwin's -lc) does not depend
on libgcc. */
#undef LINK_GCC_C_SEQUENCE_SPEC
%{Zdynamic:-dynamic}\
%{Zexported_symbols_list*:-exported_symbols_list %*} \
%{Zflat_namespace:-flat_namespace} \
- %{headerpad_max_install_names*} \
+ %{headerpad_max_install_names} \
%{Zimage_base*:-image_base %*} \
%{Zinit*:-init %*} \
%{!mmacosx-version-min=*:-macosx_version_min %(darwin_minversion)} \
(CLASS_NAME), (SEL_NAME)); \
} while (0)
+#undef ASM_DECLARE_OBJECT_NAME
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
+ darwin_asm_declare_object_name ((FILE), (NAME), (DECL))
+
/* The RTTI data (e.g., __ti4name) is common and public (and static),
but it does need to be referenced via indirect PIC data pointers.
The machopic_define_symbol calls are telling the machopic subsystem
that the name *is* defined in this module, so it doesn't need to
make them indirect. */
-#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- const char *xname = NAME; \
- if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
- xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
- if (! DECL_WEAK (DECL) \
- && ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL))) \
- machopic_define_symbol (DECL_RTL (DECL)); \
- 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 { \
const char *xname = NAME; \
Make Objective-C internal symbols local and in doing this, we need
to accommodate the name mangling done by c++ on file scope locals. */
-
int darwin_label_is_anonymous_local_objc_name (const char *name);
#undef ASM_OUTPUT_LABELREF
} \
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); \
#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
if ((LOG) != 0) \
- fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
-
-/* Ensure correct alignment of bss data. */
-
-#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
-#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
- do { \
- unsigned HOST_WIDE_INT _new_size = SIZE; \
- fputs ("\t.lcomm ", (FILE)); \
- assemble_name ((FILE), (NAME)); \
- if (_new_size == 0) _new_size = 1; \
- fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", _new_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); \
- machopic_define_symbol (DECL_RTL (DECL)); \
- } \
- } while (0)
+ fprintf (FILE, "\t%s\t%d\n", ALIGN_ASM_OP, (LOG))
/* The maximum alignment which the object file format can support in
bits. For Mach-O, this is 2^15 bytes. */
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT (0x8000 * 8)
+#define L2_MAX_OFILE_ALIGNMENT 15
+
+/* These are the three variants that emit referenced blank space. */
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+ darwin_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
+
+#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
+#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
+ darwin_asm_output_aligned_decl_local \
+ ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
+
+#undef ASM_OUTPUT_ALIGNED_DECL_COMMON
+#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \
+ darwin_asm_output_aligned_decl_common \
+ ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
+
/* The generic version, archs should over-ride where required. */
#define MACHOPIC_NL_SYMBOL_PTR_SECTION ".non_lazy_symbol_pointer"
#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
/* 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 ""
-/* Darwin can't support anchors until we can cope with the adjustments
- to size that ASM_DECLARE_OBJECT_NAME and ASM_DECLARE_CONSTANT_NAME
- when outputting members of an anchor block and the linker can be
- taught to keep them together or we find some other suitable
- code-gen technique. */
-
-#if 0
-#define TARGET_ASM_OUTPUT_ANCHOR darwin_asm_output_anchor
-#else
+/* Darwin disables section anchors by default.
+ They should be enabled per arch where support exists in that arch. */
#define TARGET_ASM_OUTPUT_ANCHOR NULL
-#endif
+#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,
#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
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