/* Target definitions for Darwin (Mac OS X) systems.
- Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001
+ Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002
Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
leave it undefined and expect system builders to set configure args
correctly. */
-/* Name of the command that invokes the compiler - used in g++.c. */
+/* 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 GCC_NAME
-#define GCC_NAME "cc"
-
-/* Never try linking with -lm - used in g++.c. */
-
-#define NO_MATH_LIBRARY
+#define MATH_LIBRARY ""
/* We have atexit. */
#define DBX_DEBUGGING_INFO
+/* Also enable Dwarf 2 as an option. */
+
+#define DWARF2_DEBUGGING_INFO
+
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+
/* When generating stabs debugging, use N_BINCL entries. */
#define DBX_USE_BINCL
#define NO_PROFILE_COUNTERS
-/* Don't use .gcc_compiled symbols to communicate with GDB;
- They interfere with numerically sorted symbol lists. */
-
-#undef ASM_IDENTIFY_GCC
-#define ASM_IDENTIFY_GCC(asm_out_file)
-
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP
#define ASM_FILE_END(FILE) \
do { \
machopic_finish (asm_out_file); \
- if (strcmp (language_string, "GNU C++") == 0) \
+ if (strcmp (lang_hooks.name, "GNU C++") == 0) \
{ \
constructor_section (); \
destructor_section (); \
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do { \
- char *xname = NAME; \
+ const char *xname = NAME; \
+ if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
+ xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
+ if ((TREE_STATIC (DECL) \
+ && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
+ || DECL_INITIAL (DECL)) \
+ machopic_define_name (xname); \
+ if ((TREE_STATIC (DECL) \
+ && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
+ || DECL_INITIAL (DECL)) \
+ (* targetm.encode_section_info) (DECL, false); \
+ ASM_OUTPUT_LABEL (FILE, xname); \
+ } while (0)
+
+#define ASM_DECLARE_FUNCTION_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 ((TREE_STATIC (DECL) \
if ((TREE_STATIC (DECL) \
&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
|| DECL_INITIAL (DECL)) \
- ENCODE_SECTION_INFO (DECL); \
+ (* 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. */ \
+ machopic_output_possible_stub_label (FILE, xname); \
} while (0)
/* Wrap new method names in quotes so the assembler doesn't gag.
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] == '&') \
- { \
- 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)
#undef ALIGN_ASM_OP
/* Ensure correct alignment of bss data. */
#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
-#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
- do { \
- fputs (".lcomm ", (FILE)); \
- assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), ",%u,%u\n", (SIZE), floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
- if ((DECL) && ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL))) \
- ENCODE_SECTION_INFO (DECL); \
- if ((DECL) && ((TREE_STATIC (DECL) \
- && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
- || DECL_INITIAL (DECL))) \
- machopic_define_name (NAME); \
+#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
+ do { \
+ fputs (".lcomm ", (FILE)); \
+ assemble_name ((FILE), (NAME)); \
+ fprintf ((FILE), ",%u,%u\n", (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, 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 SECTION_FUNCTION
#define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
+extern void FUNCTION PARAMS ((void)); \
void \
FUNCTION () \
{ \
- extern void objc_section_init (); \
- \
if (in_section != SECTION) \
{ \
if (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
in_machopic_lazy_symbol_ptr, \
in_machopic_symbol_stub, \
in_machopic_picsymbol_stub, \
+ in_darwin_exception, in_darwin_eh_frame, \
num_sections
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
+static void objc_section_init PARAMS ((void)); \
SECTION_FUNCTION (const_section, \
in_const, \
".const", 0) \
SECTION_FUNCTION (machopic_picsymbol_stub_section, \
in_machopic_picsymbol_stub, \
".picsymbol_stub", 0) \
+SECTION_FUNCTION (darwin_exception_section, \
+ in_darwin_exception, \
+ ".section __TEXT,__gcc_except_tab", 0) \
+SECTION_FUNCTION (darwin_eh_frame_section, \
+ in_darwin_eh_frame, \
+ ".section __TEXT,__eh_frame", 0) \
\
-void \
+static void \
objc_section_init () \
{ \
static int been_here = 0; \
objc_module_info_section (); \
objc_symbols_section (); \
} \
-} \
-static tree section_alias[(int) num_sections]; \
-void try_section_alias () \
-{ \
- if (section_alias[in_section] && asm_out_file) \
- fprintf (asm_out_file, "%s\n", \
- IDENTIFIER_POINTER (section_alias[in_section])); \
-} \
-void alias_section (name, alias) \
- 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"); \
}
-#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION const_section
-#undef SELECT_SECTION
-#define SELECT_SECTION(exp,reloc) \
- 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)
-
-#undef SELECT_RTX_SECTION
-#define SELECT_RTX_SECTION(mode, rtx) \
- do \
- { \
- if (GET_MODE_SIZE (mode) == 8) \
- literal8_section (); \
- else if (GET_MODE_SIZE (mode) == 4) \
- 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 { \
#undef ASM_GLOBALIZE_LABEL
#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
- do { const char* _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) { \
+ do { const char *const _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) { \
(fputs (".globl ", FILE), assemble_name (FILE, _x), fputs ("\n", FILE)); \
}} while (0)
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*%s%d", PREFIX, NUM)
+ sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
/* This is how to output an internal numbered label where PREFIX is
the class of label and NUM is the number within the class. */
#define MACHOPIC_JUST_INDIRECT (flag_pic == 1)
#define MACHOPIC_PURE (flag_pic == 2)
-#define ENCODE_SECTION_INFO(DECL) \
- darwin_encode_section_info (DECL)
-
-/* Be conservative and always redo the encoding. */
-
-#define REDO_SECTION_INFO_P(DECL) (1)
-
-#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
- ((VAR) = ((SYMBOL_NAME[0] == '!') ? (SYMBOL_NAME) + 4 : (SYMBOL_NAME)))
+#define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
+#define TARGET_STRIP_NAME_ENCODING darwin_strip_name_encoding
#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
do { \
- const char *stub_ = (STUB); \
+ const char *const stub_ = (STUB); \
char *buffer_ = (BUF); \
strcpy (buffer_, stub_); \
if (stub_[0] == '"') \
#define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
do { \
- const char *symbol_ = (SYMBOL); \
+ const char *const symbol_ = (SYMBOL); \
char *buffer_ = (BUF); \
if (name_needs_quotes (symbol_) && symbol_[0] != '"') \
{ \
#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\""); \
} \
} \
} while (0)
-#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); \
+#define TARGET_ASM_EXCEPTION_SECTION darwin_exception_section
+
+#define TARGET_ASM_EH_FRAME_SECTION darwin_eh_frame_section
+
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
+ (((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
+
+#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)
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