leave it undefined and expect system builders to set configure args
correctly. */
+/* One of Darwin's NeXT legacies is the Mach-O format, which is partly
+ like a.out and partly like COFF, with additional features like
+ multi-architecture binary support. */
+
+#define OBJECT_FORMAT_MACHO
+
/* Suppress g++ attempt to link in the math library automatically.
(Some Darwin versions have a libm, but they seem to cause problems
for C++ executables.) */
#undef DEFAULT_PCC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 0
-/* Don't warn about MacOS-style 'APPL' four-char-constants. */
-
-#undef WARN_FOUR_CHAR_CONSTANTS
-#define WARN_FOUR_CHAR_CONSTANTS 0
-
/* Machine dependent cpp options. */
-/* The sequence here allows us to get a more specific version number
- glued into __APPLE_CC__. Normally this number would be updated as
- part of submitting to a release engineering organization. */
-
-#ifndef APPLE_CC
-#define APPLE_CC 999
-#endif
-
-#define STRINGIFY_THIS(x) # x
-#define REALLY_STRINGIFY(x) STRINGIFY_THIS(x)
-
#undef CPP_SPEC
-#define CPP_SPEC "-D__APPLE_CC__=" REALLY_STRINGIFY(APPLE_CC) " \
- %{static:-D__STATIC__}%{!static:-D__DYNAMIC__}"
+#define CPP_SPEC "%{static:-D__STATIC__}%{!static:-D__DYNAMIC__}"
/* Machine dependent libraries. */
#undef LIB_SPEC
#define LIB_SPEC "%{!static:-lSystem}"
-/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
+/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
- "%{pg:%{static:-lgcrt0.o}%{!static:-lgcrt1.o}} \
- %{!pg:%{static:-lcrt0.o}%{!static:-lcrt1.o}}"
+ "%{pg:%{static:-lgcrt0.o}%{!static:-lgcrt1.o} -lcrt2.o} \
+ %{!pg:%{static:-lcrt0.o}%{!static:-lcrt1.o} -lcrt2.o}"
+
+/* 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 "" */
#undef DOLLARS_IN_IDENTIFIERS
#define DOLLARS_IN_IDENTIFIERS 2
-/* Allow #sccs (but don't do anything). */
-
-#define SCCS_DIRECTIVE
-
/* We use Dbx symbol format. */
-#define DBX_DEBUGGING_INFO
-
-/* Also enable Dwarf 2 as an option. */
-
-#define DWARF2_DEBUGGING_INFO
-
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#define DBX_DEBUGGING_INFO 1
/* When generating stabs debugging, use N_BINCL entries. */
#define DBX_CONTIN_LENGTH 0
-/* gdb needs a null N_SO at the end of each file for scattered loading. */
+/* gdb needs a null N_SO at the end of each file for scattered loading. */
#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
#define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
#define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
+/* Always prefix with an underscore. */
+
+#define USER_LABEL_PREFIX "_"
/* Don't output a .file directive. That is only used by the assembler for
error reporting. */
} \
} while (0)
-/* Give ObjcC methods pretty symbol names. */
+#define ASM_OUTPUT_SKIP(FILE,SIZE) \
+ fprintf (FILE, "\t.space %d\n", SIZE)
+
+/* Give ObjC methods pretty symbol names. */
#undef OBJC_GEN_METHOD_LABEL
#define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
- ENCODE_SECTION_INFO (DECL, false); \
+ (* targetm.encode_section_info) (DECL, false); \
ASM_OUTPUT_LABEL (FILE, xname); \
} while (0)
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
- ENCODE_SECTION_INFO (DECL, false); \
+ (* targetm.encode_section_info) (DECL, false); \
ASM_OUTPUT_LABEL (FILE, xname); \
/* Avoid generating stubs for functions we've just defined by \
outputting any required stub name label now. */ \
Make Objective-C internal symbols local. */
#undef ASM_OUTPUT_LABELREF
-#define ASM_OUTPUT_LABELREF(FILE,NAME) \
- do { \
- STRIP_NAME_ENCODING (NAME, NAME); \
- if (NAME[0] == '&' || NAME[0] == '*') \
- { \
- int len = strlen (NAME); \
- if (len > 6 && !strcmp ("$stub", NAME + len - 5)) \
- machopic_validate_stub_or_non_lazy_ptr (NAME, 1); \
- else if (len > 7 && !strcmp ("$stub\"", NAME + len - 6)) \
- machopic_validate_stub_or_non_lazy_ptr (NAME, 1); \
- else if (len > 14 && !strcmp ("$non_lazy_ptr", NAME + len - 13)) \
- machopic_validate_stub_or_non_lazy_ptr (NAME, 0); \
- fputs (&NAME[1], FILE); \
- } \
- else if (NAME[0] == '+' || NAME[0] == '-') \
- fprintf (FILE, "\"%s\"", NAME); \
- else if (!strncmp (NAME, "_OBJC_", 6)) \
- fprintf (FILE, "L%s", NAME); \
- else if (!strncmp (NAME, ".objc_class_name_", 17)) \
- fprintf (FILE, "%s", NAME); \
- else \
- fprintf (FILE, "_%s", NAME); \
+#define ASM_OUTPUT_LABELREF(FILE,NAME) \
+ do { \
+ const char *xname = darwin_strip_name_encoding (NAME); \
+ if (xname[0] == '&' || xname[0] == '*') \
+ { \
+ int len = strlen (xname); \
+ if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
+ machopic_validate_stub_or_non_lazy_ptr (xname, 1); \
+ else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
+ machopic_validate_stub_or_non_lazy_ptr (xname, 1); \
+ else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
+ machopic_validate_stub_or_non_lazy_ptr (xname, 0); \
+ fputs (&xname[1], FILE); \
+ } \
+ else if (xname[0] == '+' || xname[0] == '-') \
+ fprintf (FILE, "\"%s\"", xname); \
+ else if (!strncmp (xname, "_OBJC_", 6)) \
+ fprintf (FILE, "L%s", xname); \
+ else if (!strncmp (xname, ".objc_class_name_", 17)) \
+ fprintf (FILE, "%s", xname); \
+ else \
+ fprintf (FILE, "_%s", xname); \
} while (0)
+/* Output before executable code. */
+#undef TEXT_SECTION_ASM_OP
+#define TEXT_SECTION_ASM_OP ".text"
+
+/* Output before writable data. */
+
+#undef DATA_SECTION_ASM_OP
+#define DATA_SECTION_ASM_OP ".data"
+
#undef ALIGN_ASM_OP
#define ALIGN_ASM_OP ".align"
if ((DECL) && ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL))) \
- ENCODE_SECTION_INFO (DECL, false); \
+ (* targetm.encode_section_info) (DECL, false); \
if ((DECL) && ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL))) \
machopic_define_name (NAME); \
} while (0)
-/* Output nothing for #ident. */
-
-#undef ASM_OUTPUT_IDENT
-#define ASM_OUTPUT_IDENT(FILE, NAME)
-
/* The maximum alignment which the object file format can support.
For Mach-O, this is 2^15. */
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT 0x8000
-/* Create new Mach-O sections. */
+/* Create new Mach-O sections. */
#undef SECTION_FUNCTION
#define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
} \
} \
-#define ALIAS_SECTION(enum_value, alias_name) \
-do { if (!strcmp (alias_name, name)) \
- section_alias[enum_value] = (alias ? get_identifier (alias) : 0); \
- } while (0)
-
/* Darwin uses many types of special sections. */
#undef EXTRA_SECTIONS
".picsymbol_stub", 0) \
SECTION_FUNCTION (darwin_exception_section, \
in_darwin_exception, \
- ".section __TEXT,__gcc_except_tab", 0) \
+ ".section __DATA,__gcc_except_tab", 0) \
SECTION_FUNCTION (darwin_eh_frame_section, \
in_darwin_eh_frame, \
".section __TEXT,__eh_frame", 0) \
objc_module_info_section (); \
objc_symbols_section (); \
} \
-} \
-static tree section_alias[(int) num_sections]; \
-static void try_section_alias PARAMS ((void)); \
-static void try_section_alias () \
-{ \
- if (section_alias[in_section] && asm_out_file) \
- fprintf (asm_out_file, "%s\n", \
- IDENTIFIER_POINTER (section_alias[in_section])); \
-} \
-
-#if 0
-static void alias_section PARAMS ((const char *, const char *)); \
-static void alias_section (name, alias) \
- const char *name, *alias; \
-{ \
- ALIAS_SECTION (in_data, "data"); \
- ALIAS_SECTION (in_text, "text"); \
- ALIAS_SECTION (in_const, "const"); \
- ALIAS_SECTION (in_const_data, "const_data"); \
- ALIAS_SECTION (in_cstring, "cstring"); \
- ALIAS_SECTION (in_literal4, "literal4"); \
- ALIAS_SECTION (in_literal8, "literal8"); \
}
-#endif
-#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION const_section
-#undef SELECT_SECTION
-#define SELECT_SECTION(exp,reloc,align) \
- do \
- { \
- if (TREE_CODE (exp) == STRING_CST) \
- { \
- if (flag_writable_strings) \
- data_section (); \
- else if (TREE_STRING_LENGTH (exp) != \
- strlen (TREE_STRING_POINTER (exp)) + 1) \
- readonly_data_section (); \
- else \
- cstring_section (); \
- } \
- else if (TREE_CODE (exp) == INTEGER_CST \
- || TREE_CODE (exp) == REAL_CST) \
- { \
- tree size = TYPE_SIZE (TREE_TYPE (exp)); \
- \
- if (TREE_CODE (size) == INTEGER_CST && \
- TREE_INT_CST_LOW (size) == 4 && \
- TREE_INT_CST_HIGH (size) == 0) \
- literal4_section (); \
- else if (TREE_CODE (size) == INTEGER_CST && \
- TREE_INT_CST_LOW (size) == 8 && \
- TREE_INT_CST_HIGH (size) == 0) \
- literal8_section (); \
- else \
- readonly_data_section (); \
- } \
- else if (TREE_CODE (exp) == CONSTRUCTOR \
- && TREE_TYPE (exp) \
- && TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE \
- && TYPE_NAME (TREE_TYPE (exp))) \
- { \
- tree name = TYPE_NAME (TREE_TYPE (exp)); \
- if (TREE_CODE (name) == TYPE_DECL) \
- name = DECL_NAME (name); \
- if (!strcmp (IDENTIFIER_POINTER (name), "NSConstantString")) \
- objc_constant_string_object_section (); \
- else if (!strcmp (IDENTIFIER_POINTER (name), "NXConstantString")) \
- objc_string_object_section (); \
- else if (TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- { \
- if (TREE_SIDE_EFFECTS (exp) || flag_pic && reloc) \
- const_data_section (); \
- else \
- readonly_data_section (); \
- } \
- else \
- data_section (); \
- } \
- else if (TREE_CODE (exp) == VAR_DECL && \
- DECL_NAME (exp) && \
- TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE && \
- IDENTIFIER_POINTER (DECL_NAME (exp)) && \
- !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6)) \
- { \
- const char *name = IDENTIFIER_POINTER (DECL_NAME (exp)); \
- \
- if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20)) \
- objc_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23)) \
- objc_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23)) \
- objc_cat_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22)) \
- objc_class_vars_section (); \
- else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25)) \
- objc_instance_vars_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_PROTOCOLS_", 22)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_NAME_", 17)) \
- objc_class_names_section (); \
- else if (!strncmp (name, "_OBJC_METH_VAR_NAME_", 20)) \
- objc_meth_var_names_section (); \
- else if (!strncmp (name, "_OBJC_METH_VAR_TYPE_", 20)) \
- objc_meth_var_types_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_REFERENCES", 22)) \
- objc_cls_refs_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_", 12)) \
- objc_class_section (); \
- else if (!strncmp (name, "_OBJC_METACLASS_", 16)) \
- objc_meta_class_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_", 15)) \
- objc_category_section (); \
- else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25)) \
- objc_selector_refs_section (); \
- else if (!strncmp (name, "_OBJC_SELECTOR_FIXUP", 20)) \
- objc_selector_fixup_section (); \
- else if (!strncmp (name, "_OBJC_SYMBOLS", 13)) \
- objc_symbols_section (); \
- else if (!strncmp (name, "_OBJC_MODULES", 13)) \
- objc_module_info_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_INSTANCE_METHODS_", 32)) \
- objc_cat_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_CLASS_METHODS_", 29)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_REFS_", 20)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_PROTOCOL_", 15)) \
- objc_protocol_section (); \
- else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- && !TREE_SIDE_EFFECTS (exp)) \
- { if (flag_pic && reloc ) const_data_section (); \
- else readonly_data_section (); } \
- else \
- data_section (); \
- } \
- else if (TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- { \
- if (TREE_SIDE_EFFECTS (exp) || flag_pic && reloc) \
- const_data_section (); \
- else \
- readonly_data_section (); \
- } \
- else \
- data_section (); \
- try_section_alias (); \
- } \
- while (0)
-
-/* This can be called with address expressions as "rtx".
- They must go in "const". */
-#undef SELECT_RTX_SECTION
-#define SELECT_RTX_SECTION(mode, rtx, align) \
- do \
- { \
- if (GET_MODE_SIZE (mode) == 8) \
- literal8_section (); \
- else if (GET_MODE_SIZE (mode) == 4 \
- && (GET_CODE (rtx) == CONST_INT \
- || GET_CODE (rtx) == CONST_DOUBLE)) \
- literal4_section (); \
- else \
- const_section (); \
- } \
- while (0)
+#undef TARGET_ASM_SELECT_SECTION
+#define TARGET_ASM_SELECT_SECTION machopic_select_section
+#undef TARGET_ASM_SELECT_RTX_SECTION
+#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
#define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
do { \
fprintf (FILE, "\t"); \
assemble_name (FILE, NAME); \
fprintf (FILE, "=0\n"); \
- assemble_global (NAME); \
+ (*targetm.asm_out.globalize_label) (FILE, NAME); \
} \
} while (0)
-#undef ASM_GLOBALIZE_LABEL
-#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
- do { const char *const _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) { \
- (fputs (".globl ", FILE), assemble_name (FILE, _x), fputs ("\n", FILE)); \
- }} while (0)
+/* Globalizing directive for a label. */
+#define GLOBAL_ASM_OP ".globl "
+#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
#define MACHOPIC_JUST_INDIRECT (flag_pic == 1)
#define MACHOPIC_PURE (flag_pic == 2)
-#define ENCODE_SECTION_INFO(DECL, FIRST) \
- darwin_encode_section_info (DECL, FIRST)
-
-#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
- ((VAR) = ((SYMBOL_NAME[0] == '!') ? (SYMBOL_NAME) + 4 : (SYMBOL_NAME)))
+#undef TARGET_ENCODE_SECTION_INFO
+#define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
+#undef TARGET_STRIP_NAME_ENCODING
+#define TARGET_STRIP_NAME_ENCODING darwin_strip_name_encoding
#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
do { \
#define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
do { \
- const char *symbol_ = (SYMBOL); \
+ const char *symbol_ = darwin_strip_name_encoding (SYMBOL); \
char *buffer_ = (BUF); \
- STRIP_NAME_ENCODING (symbol_, symbol_); \
if (symbol_[0] == '"') \
{ \
- strcpy (buffer_, "\"L"); \
+ strcpy (buffer_, "\"L"); \
strcpy (buffer_ + 2, symbol_ + 1); \
strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
} \
#define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
+#undef ASM_PREFERRED_EH_DATA_FORMAT
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
- (((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
-
-#define REGISTER_TARGET_PRAGMAS(PFILE) \
- do { \
- cpp_register_pragma (PFILE, 0, "mark", darwin_pragma_ignore); \
- cpp_register_pragma (PFILE, 0, "options", darwin_pragma_options); \
- cpp_register_pragma (PFILE, 0, "segment", darwin_pragma_ignore); \
- cpp_register_pragma (PFILE, 0, "unused", darwin_pragma_unused); \
+ (((CODE) == 2 && (GLOBAL) == 1) \
+ ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
+ ((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)
+
+#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
+
+#define DARWIN_REGISTER_TARGET_PRAGMAS(PFILE) \
+ do { \
+ cpp_register_pragma (PFILE, 0, "mark", darwin_pragma_ignore); \
+ cpp_register_pragma (PFILE, 0, "options", darwin_pragma_options); \
+ cpp_register_pragma (PFILE, 0, "segment", darwin_pragma_ignore); \
+ cpp_register_pragma (PFILE, 0, "unused", darwin_pragma_unused); \
} while (0)
+
+#undef ASM_APP_ON
+#define ASM_APP_ON ""
+#undef ASM_APP_OFF
+#define ASM_APP_OFF ""