diff options
Diffstat (limited to 'gcc/config/darwin.h')
| -rw-r--r-- | gcc/config/darwin.h | 325 |
1 files changed, 317 insertions, 8 deletions
diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h index 027aa6839a3..ab129e2d443 100644 --- a/gcc/config/darwin.h +++ b/gcc/config/darwin.h @@ -40,6 +40,10 @@ Boston, MA 02111-1307, USA. */ #define OBJECT_FORMAT_MACHO +/* APPLE LOCAL begin dynamic-no-pic */ +extern int machopic_symbol_defined_p (rtx); +/* APPLE LOCAL end dynamic-no-pic */ + /* Suppress g++ attempt to link in the math library automatically. */ #define MATH_LIBRARY "" @@ -80,6 +84,12 @@ Boston, MA 02111-1307, USA. */ #undef DEFAULT_PCC_STRUCT_RETURN #define DEFAULT_PCC_STRUCT_RETURN 0 +/* APPLE LOCAL begin -Wfour-char-constants */ +/* Don't warn about MacOS-style 'APPL' four-char-constants. */ +#undef WARN_FOUR_CHAR_CONSTANTS +#define WARN_FOUR_CHAR_CONSTANTS 0 +/* APPLE LOCAL end -Wfour-char-constants */ + /* This table intercepts weirdo options whose names would interfere with normal driver conventions, and either translates them into standardly-named options, or adds a 'Z' so that they can get to @@ -103,6 +113,10 @@ Boston, MA 02111-1307, USA. */ architecture. */ #define TARGET_OPTION_TRANSLATE_TABLE \ +/* APPLE LOCAL KEXT terminated-vtables */ \ + { "-fterminated-vtables", "-fapple-kext" }, \ +/* APPLE LOCAL KEXT indirect-virtual-calls --sts */ \ + { "-findirect-virtual-calls", "-fapple-kext" }, \ { "-all_load", "-Zall_load" }, \ { "-allowable_client", "-Zallowable_client" }, \ { "-arch_errors_fatal", "-Zarch_errors_fatal" }, \ @@ -123,7 +137,8 @@ Boston, MA 02111-1307, USA. */ { "-segs_read_only_addr", "-Zsegs_read_only_addr" }, \ { "-segs_read_write_addr", "-Zsegs_read_write_addr" }, \ { "-seg_addr_table", "-Zseg_addr_table" }, \ - { "-seg_addr_table_filename", "-Zseg_addr_table_filename" }, \ + /* APPLE LOCAL why did I do that? -- mrs */ \ + { "-seg_addr_table_filename", "-Zfn_seg_addr_table_filename" }, \ { "-filelist", "-Xlinker -filelist -Xlinker" }, \ { "-framework", "-Xlinker -framework -Xlinker" }, \ { "-flat_namespace", "-Zflat_namespace" }, \ @@ -138,8 +153,28 @@ Boston, MA 02111-1307, USA. */ { "-static", "-static -Wa,-static" }, \ { "-single_module", "-Zsingle_module" }, \ { "-unexported_symbols_list", "-Zunexported_symbols_list" }, \ + /* APPLE LOCAL ObjC GC */ \ + { "-fobjc-gc", "-fobjc-gc -Wno-non-lvalue-assign" }, \ + /* APPLE LOCAL begin constant cfstrings */ \ + { "-fconstant-cfstrings", "-mconstant-cfstrings" }, \ + { "-fno-constant-cfstrings", "-mno-constant-cfstrings" }, \ + { "-Wnonportable-cfstrings", "-mwarn-nonportable-cfstrings" }, \ + { "-Wno-nonportable-cfstrings", "-mno-warn-nonportable-cfstrings" }, \ + { "-fpascal-strings", "-mpascal-strings" }, \ + { "-fno-pascal-strings", "-mno-pascal-strings" }, \ + /* APPLE LOCAL end constant cfstrings */ \ SUBTARGET_OPTION_TRANSLATE_TABLE +/* APPLE LOCAL begin constant cfstrings */ +extern int darwin_constant_cfstrings; +extern const char *darwin_constant_cfstrings_switch; +extern int darwin_warn_nonportable_cfstrings; +extern const char *darwin_warn_nonportable_cfstrings_switch; +extern int darwin_pascal_strings; +extern const char *darwin_pascal_strings_switch; +extern int darwin_running_cxx; +/* APPLE LOCAL end constant cfstrings */ + /* Nonzero if the user has chosen to force sizeof(bool) to be 1 by providing the -mone-byte-bool switch. It would be better to use SUBTARGET_SWITCHES for this instead of SUBTARGET_OPTIONS, @@ -147,6 +182,11 @@ Boston, MA 02111-1307, USA. */ that this switch has no "no-" variant. */ extern const char *darwin_one_byte_bool; +/* APPLE LOCAL begin pragma reverse_bitfields */ +/* True if pragma reverse_bitfields is in effect. */ +extern int darwin_reverse_bitfields; +/* APPLE LOCAL end pragma reverse_bitfields */ + extern int darwin_fix_and_continue; extern const char *darwin_fix_and_continue_switch; @@ -156,7 +196,96 @@ extern const char *darwin_fix_and_continue_switch; {"fix-and-continue", &darwin_fix_and_continue_switch, \ N_("Generate code suitable for fast turn around debugging"), 0}, \ {"no-fix-and-continue", &darwin_fix_and_continue_switch, \ - N_("Don't generate code suitable for fast turn around debugging"), 0} +/* APPLE LOCAL begin constant cfstrings */ \ + N_("Don't generate code suitable for fast turn around debugging"), 0}, \ + {"constant-cfstrings", &darwin_constant_cfstrings_switch, \ + N_("Generate compile-time CFString objects"), 0}, \ + {"no-constant-cfstrings", &darwin_constant_cfstrings_switch, "", 0}, \ + {"pascal-strings", &darwin_pascal_strings_switch, \ + N_("Allow use of Pascal strings"), 0}, \ + {"no-pascal-strings", &darwin_pascal_strings_switch, "", 0}, \ + {"warn-nonportable-cfstrings", &darwin_warn_nonportable_cfstrings_switch, \ + N_("Warn if constant CFString objects contain non-portable characters"), 0}, \ + {"no-warn-nonportable-cfstrings", &darwin_warn_nonportable_cfstrings_switch, "", 0} + +#define SUBTARGET_OS_CPP_BUILTINS() \ + do \ + { \ + builtin_define ("__MACH__"); \ + builtin_define ("__APPLE__"); \ + if (darwin_constant_cfstrings) \ + builtin_define ("__CONSTANT_CFSTRINGS__"); \ + /* APPLE LOCAL begin pascal strings */ \ + if (darwin_pascal_strings) \ + { \ + builtin_define ("__PASCAL_STRINGS__"); \ + } \ + /* APPLE LOCAL end pascal strings */ \ + /* APPLE LOCAL begin ObjC GC */ \ + if (flag_objc_gc) \ + { \ + builtin_define ("__strong=__attribute__((objc_gc(strong)))"); \ + builtin_define ("__OBJC_GC__"); \ + } \ + else \ + builtin_define ("__strong="); \ + /* APPLE LOCAL end ObjC GC */ \ + } \ + while (0) + +#define SUBSUBTARGET_OVERRIDE_OPTIONS \ +do { \ + /* APPLE LOCAL kext */ \ + extern int flag_weak; \ + if (darwin_constant_cfstrings_switch) \ + { \ + const char *base = darwin_constant_cfstrings_switch; \ + while (base[-1] != 'm') base--; \ + \ + if (*darwin_constant_cfstrings_switch != '\0') \ + error ("invalid option `%s'", base); \ + darwin_constant_cfstrings = (base[0] != 'n'); \ + } \ + if (darwin_warn_nonportable_cfstrings_switch) \ + { \ + const char *base = darwin_warn_nonportable_cfstrings_switch; \ + while (base[-1] != 'm') base--; \ + \ + if (*darwin_warn_nonportable_cfstrings_switch != '\0') \ + error ("invalid option `%s'", base); \ + darwin_warn_nonportable_cfstrings = (base[0] != 'n'); \ + } \ + if (darwin_pascal_strings_switch) \ + { \ + const char *base = darwin_pascal_strings_switch; \ + while (base[-1] != 'm') base--; \ + \ + if (*darwin_pascal_strings_switch != '\0') \ + error ("invalid option `%s'", base); \ + darwin_pascal_strings = (base[0] != 'n'); \ + if (darwin_pascal_strings) \ + CPP_OPTION (parse_in, pascal_strings) = 1; \ + } \ + /* The c_dialect...() macros are not available to us here. */ \ + darwin_running_cxx = (strstr (lang_hooks.name, "C++") != 0); \ + /* APPLE LOCAL begin kexts --bowdidge */ \ + /* kexts should always be built without the coalesced sections */ \ + /* because the kernel loader doesn't grok such sections. */ \ + if (flag_apple_kext) flag_weak = 0; \ + /* APPLE LOCAL end kexts */ \ +} while(0) + +#define SUBTARGET_INIT_BUILTINS \ +do { \ + darwin_init_cfstring_builtins (); \ +} while(0) + +#undef TARGET_EXPAND_TREE_BUILTIN +#define TARGET_EXPAND_TREE_BUILTIN darwin_expand_tree_builtin +#undef TARGET_CONSTRUCT_OBJC_STRING +#define TARGET_CONSTRUCT_OBJC_STRING darwin_construct_objc_string + +/* APPLE LOCAL end constant cfstrings */ /* These compiler options take n arguments. */ @@ -185,7 +314,8 @@ extern const char *darwin_fix_and_continue_switch; !strcmp (STR, "Zsegs_read_only_addr") ? 1 : \ !strcmp (STR, "Zsegs_read_write_addr") ? 1 : \ !strcmp (STR, "Zseg_addr_table") ? 1 : \ - !strcmp (STR, "Zseg_addr_table_filename") ?1 :\ + /* APPLE LOCAL why did I do that? -- mrs */ \ + !strcmp (STR, "Zfn_seg_addr_table_filename") ? 1 :\ !strcmp (STR, "seg1addr") ? 1 : \ !strcmp (STR, "segprot") ? 3 : \ !strcmp (STR, "sub_library") ? 1 : \ @@ -208,8 +338,15 @@ extern const char *darwin_fix_and_continue_switch; isn't. */ #undef CPP_SPEC -#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}\ - -D__APPLE_CC__=1" +/* APPLE LOCAL __APPLE__ setting, don't set __APPLE__ here, as we do it someplace else */ +#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__} \ +"/* APPLE LOCAL -arch */"\ + %{arch}" + +/* APPLE LOCAL begin private extern */ +#undef CC1PLUS_SPEC +#define CC1PLUS_SPEC "-D__private_extern__=extern" +/* APPLE LOCAL end private extern */ /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus precomp, libtool, and fat build additions. Also we @@ -226,7 +363,8 @@ extern const char *darwin_fix_and_continue_switch; %{!Zdynamiclib:%{A} %{e*} %{m} %{N} %{n} %{r} %{u*} %{x} %{z}} \ %{@:-o %f%u.out}%{!@:%{o*}%{!o:-o a.out}} \ %{!Zdynamiclib:%{!A:%{!nostdlib:%{!nostartfiles:%S}}}} \ - %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate:-lgcov} \ +"/* APPLE LOCAL add fcreate-profile */"\ + %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|fcreate-profile:-lgcov} \ %{!nostdlib:%{!nodefaultlibs:%G %L}} \ %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}}" @@ -291,7 +429,8 @@ extern const char *darwin_fix_and_continue_switch; %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \ %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \ %{Zseg_addr_table*: -seg_addr_table %*} \ - %{Zseg_addr_table_filename*:-seg_addr_table_filename %*} \ + "/* APPLE LOCAL why did I do that? -- mrs */" \ + %{Zfn_seg_addr_table_filename*:-seg_addr_table_filename %*} \ %{sub_library*} %{sub_umbrella*} \ %{twolevel_namespace} %{twolevel_namespace_hints} \ %{umbrella*} \ @@ -368,6 +507,12 @@ extern const char *darwin_fix_and_continue_switch; #define DEBUG_STR_SECTION "__DWARFA,__debug_str" #define DEBUG_RANGES_SECTION "__DWARFA,__debug_ranges" +/* APPLE LOCAL begin gdb only used symbols */ +/* Support option to generate stabs for only used symbols. */ + +#define DBX_ONLY_USED_SYMBOLS +/* APPLE LOCAL end gdb only used symbols */ + /* When generating stabs debugging, use N_BINCL entries. */ #define DBX_USE_BINCL @@ -447,6 +592,10 @@ extern const char *darwin_fix_and_continue_switch; #undef INIT_SECTION_ASM_OP #define INIT_SECTION_ASM_OP +/* APPLE LOCAL begin static structors in __StaticInit section */ +#define STATIC_INIT_SECTION "__TEXT,__StaticInit,regular,pure_instructions" +/* APPLE LOCAL end static structors in __StaticInit section */ + #undef INVOKE__main #define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor @@ -551,7 +700,12 @@ extern const char *darwin_fix_and_continue_switch; machopic_validate_stub_or_non_lazy_ptr (xname); \ else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \ machopic_validate_stub_or_non_lazy_ptr (xname); \ - fputs (&xname[1], FILE); \ + /* APPLE LOCAL begin Objective-C++ */ \ + if (xname[1] != '"' && name_needs_quotes (&xname[1])) \ + fprintf (FILE, "\"%s\"", &xname[1]); \ + else \ + fputs (&xname[1], FILE); \ + /* APPLE LOCAL end Objective-C++ */ \ } \ else if (xname[0] == '+' || xname[0] == '-') \ fprintf (FILE, "\"%s\"", xname); \ @@ -559,6 +713,10 @@ extern const char *darwin_fix_and_continue_switch; fprintf (FILE, "L%s", xname); \ else if (!strncmp (xname, ".objc_class_name_", 17)) \ fprintf (FILE, "%s", xname); \ + /* APPLE LOCAL begin Objective-C++ */ \ + else if (xname[0] != '"' && name_needs_quotes (xname)) \ + fprintf (FILE, "\"%s\"", xname); \ + /* APPLE LOCAL end Objective-C++ */ \ else \ asm_fprintf (FILE, "%U%s", xname); \ } while (0) @@ -642,12 +800,22 @@ FUNCTION (void) \ in_objc_image_info, \ in_objc_class_names, in_objc_meth_var_names, \ in_objc_meth_var_types, in_objc_cls_refs, \ + /* APPLE LOCAL constant cfstrings */ \ + in_cfstring_constant_object, \ in_machopic_nl_symbol_ptr, \ in_machopic_lazy_symbol_ptr, \ + /* APPLE LOCAL begin dynamic-no-pic */ \ + in_machopic_lazy_symbol_ptr2, \ + in_machopic_lazy_symbol_ptr3, \ + /* APPLE LOCAL end dynamic-no-pic */ \ in_machopic_symbol_stub, \ in_machopic_symbol_stub1, \ in_machopic_picsymbol_stub, \ in_machopic_picsymbol_stub1, \ + /* APPLE LOCAL dynamic-no-pic */ \ + in_machopic_picsymbol_stub2, \ + /* APPLE LOCAL deep branch prediction pic-base */ \ + in_darwin_textcoal_nt, \ in_darwin_exception, in_darwin_eh_frame, \ num_sections @@ -751,6 +919,14 @@ SECTION_FUNCTION (objc_constant_string_object_section, \ in_objc_constant_string_object, \ ".section __OBJC, __cstring_object, regular, " \ "no_dead_strip", 1) \ +/* APPLE LOCAL begin constant cfstrings */ \ +/* Unlike constant NSStrings, constant CFStrings do not live */\ +/* in the __OBJC segment since they may also occur in pure C */\ +/* or C++ programs. */\ +SECTION_FUNCTION (cfstring_constant_object_section, \ + in_cfstring_constant_object, \ + ".section __DATA, __cfstring", 0) \ +/* APPLE LOCAL end constant cfstrings */ \ /* Fix-and-Continue image marker. */ \ SECTION_FUNCTION (objc_image_info_section, \ in_objc_image_info, \ @@ -772,6 +948,14 @@ SECTION_FUNCTION (objc_cls_refs_section, \ SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \ in_machopic_lazy_symbol_ptr, \ ".lazy_symbol_pointer", 0) \ +/* APPLE LOCAL begin dynamic-no-pic */ \ +SECTION_FUNCTION (machopic_lazy_symbol_ptr2_section, \ + in_machopic_lazy_symbol_ptr2, \ + ".section __DATA, __la_sym_ptr2,lazy_symbol_pointers", 0) \ +SECTION_FUNCTION (machopic_lazy_symbol_ptr3_section, \ + in_machopic_lazy_symbol_ptr3, \ + ".section __DATA, __la_sym_ptr3,lazy_symbol_pointers", 0) \ +/* APPLE LOCAL end dynamic-no-pic */ \ SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \ in_machopic_nl_symbol_ptr, \ ".non_lazy_symbol_pointer", 0) \ @@ -789,6 +973,16 @@ SECTION_FUNCTION (machopic_picsymbol_stub1_section, \ in_machopic_picsymbol_stub1, \ ".section __TEXT,__picsymbolstub1,symbol_stubs," \ "pure_instructions,32", 0) \ +/* APPLE LOCAL begin dynamic-no-pic */ \ +SECTION_FUNCTION (machopic_picsymbol_stub2_section, \ + in_machopic_picsymbol_stub2, \ + ".section __TEXT,__picsymbolstub2,symbol_stubs,pure_instructions,25", 0) \ +/* APPLE LOCAL end dynamic-no-pic */ \ +/* APPLE LOCAL begin deep branch prediction pic-base */ \ +SECTION_FUNCTION (darwin_textcoal_nt_section, \ + in_darwin_textcoal_nt, \ + ".section __TEXT,__textcoal_nt,coalesced,no_toc", 0)\ +/* APPLE LOCAL end deep branch prediction pic-base */ \ SECTION_FUNCTION (darwin_exception_section, \ in_darwin_exception, \ ".section __DATA,__gcc_except_tab", 0) \ @@ -870,6 +1064,13 @@ objc_section_init (void) \ #define GLOBAL_ASM_OP ".globl " #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label +/* APPLE LOCAL begin weak definition */ +#define ASM_WEAK_DEFINITIONIZE_LABEL(FILE, NAME) \ + do { const char* _x = (NAME); if (!!strncmp (_x, "_OBJC_", 6)) { \ + fputs (".weak_definition ", FILE); assemble_name (FILE, _x); \ + fputs ("\n", FILE); }} while (0) +/* APPLE LOCAL end weak definition */ + /* Emit an assembler directive to set visibility for a symbol. Used to support visibility attribute and Darwin's private extern feature. */ @@ -879,6 +1080,12 @@ objc_section_init (void) \ /* Extra attributes for Darwin. */ #define SUBTARGET_ATTRIBUTE_TABLE \ /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \ + /* APPLE LOCAL begin KEXT double destructor */ \ + { "apple_kext_compatibility", 0, 0, false, true, false, \ + darwin_handle_odd_attribute }, \ + /* APPLE LOCAL end KEXT double destructor */ \ + /* APPLE LOCAL ObjC GC */ \ + { "objc_gc", 1, 1, 0, 0, 0, darwin_handle_objc_gc_attribute }, \ { "weak_import", 0, 0, true, false, false, \ darwin_handle_weak_import_attribute } @@ -925,6 +1132,12 @@ enum machopic_addr_class { #undef TARGET_STRIP_NAME_ENCODING #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding +/* APPLE LOCAL begin what is this for? */ +/* Be conservative and always redo the encoding. */ + +#define REDO_SECTION_INFO_P(DECL) (1) +/* APPLE LOCAL end what is this for? */ + #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \ do { \ const char *const stub_ = (STUB); \ @@ -1013,6 +1226,19 @@ enum machopic_addr_class { #define JUMP_TABLES_IN_TEXT_SECTION 1 #endif +/* APPLE LOCAL begin OS pragma hook */ +#define REGISTER_OS_PRAGMAS() \ + do { \ + /* APPLE LOCAL begin Macintosh alignment 2002-1-22 --ff */ \ + c_register_pragma (0, "pack", darwin_pragma_pack); \ + /* APPLE LOCAL end Macintosh alignment 2002-1-22 --ff */ \ + /* APPLE LOCAL begin CALL_ON_LOAD/CALL_ON_UNLOAD pragmas 20020202 --turly */ \ + c_register_pragma (0, "CALL_ON_LOAD", darwin_pragma_call_on_load); \ + c_register_pragma (0, "CALL_ON_UNLOAD", darwin_pragma_call_on_unload); \ + /* APPLE LOCAL end CALL_ON_LOAD/CALL_ON_UNLOAD pragmas 20020202 --turly */ \ + } while (0) +/* APPLE LOCAL end OS pragma hook */ + #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false #undef TARGET_ASM_NAMED_SECTION @@ -1023,8 +1249,85 @@ enum machopic_addr_class { c_register_pragma (0, "mark", darwin_pragma_ignore); \ c_register_pragma (0, "options", darwin_pragma_options); \ c_register_pragma (0, "segment", darwin_pragma_ignore); \ + /* APPLE LOCAL pragma fenv */ \ + c_register_pragma ("GCC", "fenv", darwin_pragma_fenv); \ c_register_pragma (0, "unused", darwin_pragma_unused); \ + /* APPLE LOCAL begin pragma reverse_bitfields */ \ + c_register_pragma (0, "reverse_bitfields", \ + darwin_pragma_reverse_bitfields); \ + /* APPLE LOCAL end pragma reverse_bitfields */ \ + /* APPLE LOCAL begin too many changes confuse diff */ \ + } while (0) +/* APPLE LOCAL end too many changes confuse diff */ + +/* APPLE LOCAL begin insert assembly ".abort" directive on fatal error */ +#define EXIT_FROM_FATAL_DIAGNOSTIC(status) abort_assembly_and_exit (status) +extern void abort_assembly_and_exit (int status) ATTRIBUTE_NORETURN; +/* APPLE LOCAL end insert assembly ".abort" directive on fatal error */ + +/* APPLE LOCAL begin Macintosh alignment 2002-2-13 --ff */ +#ifdef RS6000_VECTOR_ALIGNMENT +/* When adjusting (lowering) the alignment of fields when in the + mac68k alignment mode, the 128-bit alignment of vectors *MUST* + be preserved. */ +#define PEG_ALIGN_FOR_MAC68K(DESIRED) \ + ((TARGET_ALTIVEC && (DESIRED) == RS6000_VECTOR_ALIGNMENT) \ + ? RS6000_VECTOR_ALIGNMENT \ + : MIN ((DESIRED), 16)) +#else +#define PEG_ALIGN_FOR_MAC68K(DESIRED) MIN ((DESIRED), 16) +#endif +/* APPLE LOCAL end Macintosh alignment 2002-2-13 --ff */ + +/* APPLE LOCAL begin KEXT double destructor */ +/* Need a mechanism to tell whether a C++ operator delete is empty so + we overload TREE_SIDE_EFFECTS here (it is unused for FUNCTION_DECLS.) + Fromage, c'est moi! */ +#define CHECK_TRIVIAL_FUNCTION(DECL) \ + do { \ + const char *_name = IDENTIFIER_POINTER (DECL_NAME (DECL)); \ + if (flag_apple_kext && DECL_SAVED_TREE (DECL) \ + && strstr (_name, "operator delete") \ + && TREE_CODE (DECL_SAVED_TREE (DECL)) == COMPOUND_STMT \ + && compound_body_is_empty_p ( \ + COMPOUND_BODY (DECL_SAVED_TREE (DECL))))\ + TREE_SIDE_EFFECTS (DECL) = 1; \ + } while (0) + +/* gcc3 initialises the vptr field of all objects so that it points at the + first virtual function slot, NOT the base address of the vtable proper. + This is different from gcc2.95 which always initialised the vptr to + point at the base address of the vtable. The difference here is 8 bytes. + So, for 2.95 compatibility, we need to: + + (1) subtract 8 from the vptr initialiser, and + (2) add 2 to every vfunc index. (2 * 4 == 8.) + + This is getting ever cheesier. */ + +#define VPTR_INITIALIZER_ADJUSTMENT 8 +#define ADJUST_VTABLE_INDEX(IDX, VTBL) \ + do { \ + if (flag_apple_kext) \ + (IDX) = fold (build2 (PLUS_EXPR, TREE_TYPE (IDX), IDX, size_int (2))); \ + } while (0) +/* APPLE LOCAL end KEXT double destructor */ + +/* APPLE LOCAL begin zerofill 20020218 --turly */ +/* This keeps uninitialized data from bloating the data when -fno-common. + Radar 2863107. */ +#define ASM_OUTPUT_ZEROFILL(FILE, NAME, SIZE, ALIGNMENT) \ + do { \ + unsigned HOST_WIDE_INT _new_size = SIZE; \ + if (_new_size == 0) _new_size = 1; \ + fputs (".zerofill __DATA, __common, ", (FILE)); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ", " HOST_WIDE_INT_PRINT_DEC, _new_size); \ + fprintf ((FILE), ", " HOST_WIDE_INT_PRINT_DEC "\n", \ + (HOST_WIDE_INT) (ALIGNMENT)); \ + in_section = no_section; \ } while (0) +/* APPLE LOCAL end zerofill 20020218 --turly */ #undef ASM_APP_ON #define ASM_APP_ON "" @@ -1046,6 +1349,12 @@ void add_framework_path (char *); #define TARGET_C99_FUNCTIONS 0 #endif +/* APPLE LOCAL begin KEXT ctors return this */ +/* For Apple KEXTs, we make the constructors return this to match gcc + 2.95. */ +#define TARGET_CXX_CDTOR_RETURNS_THIS (flag_apple_kext_p) +/* APPLE LOCAL end KEXT ctors return this */ + #define WINT_TYPE "int" #endif /* CONFIG_DARWIN_H */ |