/* Target definitions for Darwin (Mac OS X) systems. Copyright (C) 1989-2020 Free Software Foundation, Inc. Contributed by Apple Computer Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see . */ #ifndef CONFIG_DARWIN_H #define CONFIG_DARWIN_H /* The definitions in this file are common to all processor types running Darwin, which is the kernel for Mac OS X. Darwin is basically a BSD user layer laid over a Mach kernel, then evolved for many years (at NeXT) in parallel with other Unix systems. So while the runtime is a somewhat idiosyncratic Mach-based thing, other definitions look like they would for a BSD variant. */ /* Although NeXT ran on many different architectures, as of Jan 2001 the only supported Darwin targets are PowerPC and x86. */ /* 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 DARWIN_X86 0 #define DARWIN_PPC 0 /* Suppress g++ attempt to link in the math library automatically. */ #define MATH_LIBRARY "" /* We have atexit. */ #define HAVE_ATEXIT /* Define an empty body for the function do_global_dtors() in libgcc2.c. */ #define DO_GLOBAL_DTORS_BODY /* The string value for __SIZE_TYPE__. */ #ifndef SIZE_TYPE #define SIZE_TYPE "long unsigned int" #endif /* Type used for ptrdiff_t, as a string used in a declaration. */ #undef PTRDIFF_TYPE #define PTRDIFF_TYPE "int" /* wchar_t is int. */ #undef WCHAR_TYPE #define WCHAR_TYPE "int" #undef WCHAR_TYPE_SIZE #define WCHAR_TYPE_SIZE 32 #define INT8_TYPE "signed char" #define INT16_TYPE "short int" #define INT32_TYPE "int" #define INT64_TYPE "long long int" #define UINT8_TYPE "unsigned char" #define UINT16_TYPE "short unsigned int" #define UINT32_TYPE "unsigned int" #define UINT64_TYPE "long long unsigned int" #define INT_LEAST8_TYPE "signed char" #define INT_LEAST16_TYPE "short int" #define INT_LEAST32_TYPE "int" #define INT_LEAST64_TYPE "long long int" #define UINT_LEAST8_TYPE "unsigned char" #define UINT_LEAST16_TYPE "short unsigned int" #define UINT_LEAST32_TYPE "unsigned int" #define UINT_LEAST64_TYPE "long long unsigned int" #define INT_FAST8_TYPE "signed char" #define INT_FAST16_TYPE "short int" #define INT_FAST32_TYPE "int" #define INT_FAST64_TYPE "long long int" #define UINT_FAST8_TYPE "unsigned char" #define UINT_FAST16_TYPE "short unsigned int" #define UINT_FAST32_TYPE "unsigned int" #define UINT_FAST64_TYPE "long long unsigned int" #define INTPTR_TYPE "long int" #define UINTPTR_TYPE "long unsigned int" #define SIG_ATOMIC_TYPE "int" /* Default to using the NeXT-style runtime, since that's what is pre-installed on Darwin systems. */ #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. */ #undef DEFAULT_PCC_STRUCT_RETURN #define DEFAULT_PCC_STRUCT_RETURN 0 /* True if pragma ms_struct is in effect. */ extern GTY(()) int darwin_ms_struct; /* The majority of Darwin's special driver opts are direct access to ld flags (to save the user typing -Wl,xxxxx or Xlinker xxxxx) but we can't process them here, since doing so will make it appear that there are linker infiles and the linker will invoked even when it is not necessary. However, a few can be handled and we can elide options that are silently- ignored defaults, plus warn on obsolete ones that no longer function. */ #undef SUBTARGET_DRIVER_SELF_SPECS #define SUBTARGET_DRIVER_SELF_SPECS \ "%{fapple-kext|mkernel:-static}", \ "%{gfull:-g -fno-eliminate-unused-debug-symbols} %= 10.5 mmacosx-version-min= -pie) }} " #define DARWIN_NOPIE_SPEC \ "%{no-pie|fno-pie|fno-PIE: \ %:version-compare(>= 10.7 mmacosx-version-min= -no_pie) }" #define DARWIN_CC1_SPEC \ "%{findirect-virtual-calls: -fapple-kext} %= 10.6 mmacosx-version-min= -no_compact_unwind) " /* In Darwin linker specs we can put -lcrt0.o and ld will search the library path for crt0.o or -lcrtx.a and it will search for for libcrtx.a. As for other ports, we can also put xxx.{o,a}%s and get the appropriate complete startfile absolute directory. This latter point is important when we want to override ld's rule of .dylib being found ahead of .a and the user wants the convenience library to be linked. */ /* The LINK_COMMAND spec is mostly a clone of the standard LINK_COMMAND_SPEC, plus precomp, libtool, and fat build additions. In general, random Darwin linker flags should go into LINK_SPEC instead of LINK_COMMAND_SPEC. The command spec is better for specifying the handling of options understood by generic Unix linkers, and for positional arguments like libraries. */ #define LINK_COMMAND_SPEC_A \ "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ %(linker)" \ LINK_PLUGIN_SPEC \ "%{flto*:% 10.3.9 mmacosx-version-min= -lgcc_eh) \ %:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ %:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ -lgcc ; \ :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ %:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ -lgcc }" /* We specify crt0.o as -lcrt0.o so that ld will search the library path. */ #undef STARTFILE_SPEC #define STARTFILE_SPEC \ "%{Zdynamiclib: %(darwin_dylib1) %{fgnu-tm: -lcrttms.o}} \ %{!Zdynamiclib:%{Zbundle:%(darwin_bundle1)} \ %{!Zbundle:%{pg:%{static:-lgcrt0.o} \ %{!static:%{object:-lgcrt0.o} \ %{!object:%{preload:-lgcrt0.o} \ %{!preload:-lgcrt1.o \ %:version-compare(>= 10.8 mmacosx-version-min= -no_new_main) \ %(darwin_crt2)}}}} \ %{!pg:%{static:-lcrt0.o} \ %{!static:%{object:-lcrt0.o} \ %{!object:%{preload:-lcrt0.o} \ %{!preload: %(darwin_crt1) \ %(darwin_crt2)}}}}}} \ %(darwin_crt3)" /* We want a destructor last in the list. */ #define TM_DESTRUCTOR "%{fgnu-tm: -lcrttme.o}" #define ENDFILE_SPEC TM_DESTRUCTOR #define DARWIN_EXTRA_SPECS \ { "darwin_crt1", DARWIN_CRT1_SPEC }, \ { "darwin_crt2", DARWIN_CRT2_SPEC }, \ { "darwin_crt3", DARWIN_CRT3_SPEC }, \ { "darwin_dylib1", DARWIN_DYLIB1_SPEC }, \ { "darwin_bundle1", DARWIN_BUNDLE1_SPEC }, #define DARWIN_CRT1_SPEC \ "%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o) \ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lcrt1.10.5.o) \ %:version-compare(>< 10.6 10.8 mmacosx-version-min= -lcrt1.10.6.o) \ %{fgnu-tm: -lcrttms.o}" #define DARWIN_CRT2_SPEC "" /* crt3.o provides __cxa_atexit on systems that don't have it (and a fix up for faulty versions on 10.4). Since it's only used with C++, which requires passing -shared-libgcc, key off that to avoid unnecessarily adding a destructor to every program built for 10.4 or earlier. */ #define DARWIN_CRT3_SPEC \ "%{shared-libgcc:%:version-compare(< 10.5 mmacosx-version-min= crt3.o%s)}" #define DARWIN_DYLIB1_SPEC \ "%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -ldylib1.10.5.o)" #define DARWIN_BUNDLE1_SPEC \ "%{!static:%:version-compare(< 10.6 mmacosx-version-min= -lbundle1.o) \ %{fgnu-tm: -lcrttms.o}}" #ifdef HAVE_AS_MMACOSX_VERSION_MIN_OPTION /* Emit macosx version (but only major). */ #define ASM_MMACOSX_VERSION_MIN_SPEC \ " %{asm_macosx_version_min=*: -mmacosx-version-min=%*} %" /* Don't output a .file directive. That is only used by the assembler for error reporting. */ #undef TARGET_ASM_FILE_START_FILE_DIRECTIVE #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false #undef TARGET_ASM_FILE_END #define TARGET_ASM_FILE_END darwin_file_end /* Because Mach-O relocations have a counter from 1 to 255 for the section number they apply to, it is necessary to output all normal sections before the LTO sections, to make sure that the sections that may have relocations always have a section number smaller than 255. */ #undef TARGET_ASM_LTO_START #define TARGET_ASM_LTO_START darwin_asm_lto_start #undef TARGET_ASM_LTO_END #define TARGET_ASM_LTO_END darwin_asm_lto_end #define ASM_OUTPUT_SKIP(FILE,SIZE) \ fprintf (FILE, "\t.space " HOST_WIDE_INT_PRINT_UNSIGNED"\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) \ do { if (CAT_NAME) \ sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \ (CLASS_NAME), (CAT_NAME), (SEL_NAME)); \ else \ sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \ (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_FUNCTION_NAME #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 (! 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_FUNCTION_LABEL (FILE, xname, DECL); \ } while (0) #undef TARGET_ASM_DECLARE_CONSTANT_NAME #define TARGET_ASM_DECLARE_CONSTANT_NAME darwin_asm_declare_constant_name /* Wrap new method names in quotes so the assembler doesn't gag. 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 #define ASM_OUTPUT_LABELREF(FILE,NAME) \ do { \ const char *xname = (NAME); \ if (! strcmp (xname, MACHOPIC_FUNCTION_BASE_NAME)) \ machopic_output_function_base_name(FILE); \ else if (xname[0] == '&' || xname[0] == '*') \ { \ int len = strlen (xname); \ if (len > 6 && !strcmp ("$stub", xname + len - 5)) \ machopic_validate_stub_or_non_lazy_ptr (xname); \ else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \ machopic_validate_stub_or_non_lazy_ptr (xname); \ else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \ machopic_validate_stub_or_non_lazy_ptr (xname); \ else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \ machopic_validate_stub_or_non_lazy_ptr (xname); \ if (xname[1] != '"' && name_needs_quotes (&xname[1])) \ fprintf (FILE, "\"%s\"", &xname[1]); \ else \ fputs (&xname[1], FILE); \ } \ else if (xname[0] == '+' || xname[0] == '-') \ fprintf (FILE, "\"%s\"", xname); \ else if (darwin_label_is_anonymous_local_objc_name (xname)) \ fprintf (FILE, "L%s", xname); \ else if (xname[0] != '"' && name_needs_quotes (xname)) \ asm_fprintf (FILE, "\"%U%s\"", xname); \ else \ asm_fprintf (FILE, "%U%s", xname); \ } while (0) /* Output before executable code. */ #undef TEXT_SECTION_ASM_OP #define TEXT_SECTION_ASM_OP "\t.text" /* Output before writable data. */ #undef DATA_SECTION_ASM_OP #define DATA_SECTION_ASM_OP "\t.data" #undef ALIGN_ASM_OP #define ALIGN_ASM_OP ".align" #undef ASM_OUTPUT_ALIGN #define ASM_OUTPUT_ALIGN(FILE,LOG) \ if ((LOG) != 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" /* Declare the section variables. */ #ifndef USED_FOR_TARGET enum darwin_section_enum { #define DEF_SECTION(NAME, FLAGS, DIRECTIVE, OBJC) NAME, #include "darwin-sections.def" #undef DEF_SECTION NUM_DARWIN_SECTIONS }; extern GTY(()) section * darwin_sections[NUM_DARWIN_SECTIONS]; #endif #undef TARGET_ASM_SELECT_SECTION #define TARGET_ASM_SELECT_SECTION machopic_select_section #undef TARGET_ASM_FUNCTION_SECTION #define TARGET_ASM_FUNCTION_SECTION darwin_function_section #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 /* Globalizing directive for a label. */ #define GLOBAL_ASM_OP "\t.globl " #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label /* Emit an assembler directive to set visibility for a symbol. Used to support visibility attribute and Darwin's private extern feature. */ #undef TARGET_ASM_ASSEMBLE_VISIBILITY #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility /* Extra attributes for Darwin. */ #define SUBTARGET_ATTRIBUTE_TABLE \ /* { name, min_len, max_len, decl_req, type_req, fn_type_req, \ affects_type_identity, handler, exclude } */ \ { "apple_kext_compatibility", 0, 0, false, true, false, false, \ darwin_handle_kext_attribute, NULL }, \ { "weak_import", 0, 0, true, false, false, false, \ darwin_handle_weak_import_attribute, NULL } /* Make local constant labels linker-visible, so that if one follows a weak_global constant, ld64 will be able to separate the atoms. */ #undef ASM_GENERATE_INTERNAL_LABEL #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ do { \ if (strcmp ("LC", PREFIX) == 0) \ sprintf (LABEL, "*%s%ld", "lC", (long)(NUM)); \ else if (strcmp ("Lubsan_data", PREFIX) == 0) \ sprintf (LABEL, "*%s%ld", "lubsan_data", (long)(NUM));\ else if (strcmp ("Lubsan_type", PREFIX) == 0) \ sprintf (LABEL, "*%s%ld", "lubsan_type", (long)(NUM));\ else if (strcmp ("LASAN", PREFIX) == 0) \ sprintf (LABEL, "*%s%ld", "lASAN", (long)(NUM));\ else \ sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM)); \ } while (0) #undef TARGET_ASM_MARK_DECL_PRESERVED #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved /* Any port using this header needs to define the first available subtarget symbol bit: SYMBOL_FLAG_SUBT_DEP. */ /* Is a variable. */ #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_SUBT_DEP) #define MACHO_SYMBOL_VARIABLE_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_VARIABLE) != 0) /* Set on a symbol that must be indirected, even when there is a definition in the TU. The ABI mandates that common symbols are so indirected, as are weak. If 'fix-and-continue' is operational then data symbols might also be. */ #define MACHO_SYMBOL_FLAG_MUST_INDIRECT ((SYMBOL_FLAG_SUBT_DEP) << 1) #define MACHO_SYMBOL_MUST_INDIRECT_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_MUST_INDIRECT) != 0) /* Set on a symbol with SYMBOL_FLAG_FUNCTION or MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or variable is considered defined in this translation unit. */ #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_SUBT_DEP) << 2) #define MACHO_SYMBOL_DEFINED_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_DEFINED) != 0) /* Set on a symbol that has specified non-default visibility. */ #define MACHO_SYMBOL_FLAG_HIDDEN_VIS ((SYMBOL_FLAG_SUBT_DEP) << 3) #define MACHO_SYMBOL_HIDDEN_VIS_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_HIDDEN_VIS) != 0) /* Set on a symbol that should be made visible to the linker (overriding 'L' symbol prefixes). */ #define MACHO_SYMBOL_FLAG_LINKER_VIS ((SYMBOL_FLAG_SUBT_DEP) << 4) #define MACHO_SYMBOL_LINKER_VIS_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_LINKER_VIS) != 0) /* Set on a symbol that is a pic stub or symbol indirection (i.e. the L_xxxxx${stub,non_lazy_ptr,lazy_ptr}. */ #define MACHO_SYMBOL_FLAG_INDIRECTION ((SYMBOL_FLAG_SUBT_DEP) << 5) #define MACHO_SYMBOL_INDIRECTION_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_INDIRECTION) != 0) /* Set on a symbol to indicate when fix-and-continue style code generation is being used and the symbol refers to a static symbol that should be rebound from new instances of a translation unit to the original instance of the data. */ #define MACHO_SYMBOL_FLAG_STATIC ((SYMBOL_FLAG_SUBT_DEP) << 6) #define MACHO_SYMBOL_STATIC_P(RTX) \ ((SYMBOL_REF_FLAGS (RTX) & MACHO_SYMBOL_FLAG_STATIC) != 0) /* Symbolic names for various things we might know about a symbol. */ enum machopic_addr_class { MACHOPIC_UNDEFINED, MACHOPIC_DEFINED_DATA, MACHOPIC_UNDEFINED_DATA, MACHOPIC_DEFINED_FUNCTION, MACHOPIC_UNDEFINED_FUNCTION }; /* Macros defining the various PIC cases. */ #undef MACHO_DYNAMIC_NO_PIC_P #define MACHO_DYNAMIC_NO_PIC_P (TARGET_MACHO_DYNAMIC_NO_PIC) #undef MACHOPIC_INDIRECT #define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P) #define MACHOPIC_JUST_INDIRECT (MACHO_DYNAMIC_NO_PIC_P) #undef MACHOPIC_PURE #define MACHOPIC_PURE (flag_pic && ! MACHO_DYNAMIC_NO_PIC_P) #undef TARGET_ENCODE_SECTION_INFO #define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info #undef TARGET_STRIP_NAME_ENCODING #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \ do { \ const char *const stub_ = (STUB); \ char *buffer_ = (BUF); \ strcpy (buffer_, stub_); \ if (stub_[0] == '"') \ { \ strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \ } \ else \ { \ strcpy (buffer_ + (STUB_LENGTH), "_binder"); \ } \ } while (0) #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \ do { \ const char *const symbol_ = (SYMBOL); \ char *buffer_ = (BUF); \ if (name_needs_quotes (symbol_) && symbol_[0] != '"') \ { \ sprintf (buffer_, "\"%s\"", symbol_); \ } \ else \ { \ strcpy (buffer_, symbol_); \ } \ } while (0) /* Given a symbol name string, create the lazy pointer version of the symbol name. */ #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \ do { \ const char *symbol_ = (SYMBOL); \ char *buffer_ = (BUF); \ if (symbol_[0] == '"') \ { \ strcpy (buffer_, "\"L"); \ strcpy (buffer_ + 2, symbol_ + 1); \ strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \ } \ else if (name_needs_quotes (symbol_)) \ { \ strcpy (buffer_, "\"L"); \ strcpy (buffer_ + 2, symbol_); \ strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \ } \ else \ { \ strcpy (buffer_, "L"); \ strcpy (buffer_ + 1, symbol_); \ strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \ } \ } while (0) #define EH_FRAME_SECTION_NAME "__TEXT" #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support" #undef ASM_PREFERRED_EH_DATA_FORMAT #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ (((CODE) == 2 && (GLOBAL) == 1) \ ? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \ ((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, 0) #define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,OFFSET,BASE) \ darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, OFFSET, BASE) #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \ if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \ darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \ goto DONE; \ } /* Experimentally, putting jump tables in text is faster on SPEC. Also this is needed for correctness for coalesced functions. */ #ifndef JUMP_TABLES_IN_TEXT_SECTION #define JUMP_TABLES_IN_TEXT_SECTION 1 #endif #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false #define TARGET_ASM_INIT_SECTIONS darwin_init_sections #undef TARGET_ASM_NAMED_SECTION #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section #define DARWIN_REGISTER_TARGET_PRAGMAS() \ do { \ if (!flag_preprocess_only) \ cpp_register_pragma (parse_in, NULL, "mark", \ darwin_pragma_ignore, false); \ c_register_pragma (0, "options", darwin_pragma_options); \ c_register_pragma (0, "segment", darwin_pragma_ignore); \ c_register_pragma (0, "unused", darwin_pragma_unused); \ c_register_pragma (0, "ms_struct", darwin_pragma_ms_struct); \ } while (0) #undef ASM_APP_ON #define ASM_APP_ON "" #undef ASM_APP_OFF #define ASM_APP_OFF "" void darwin_register_frameworks (const char *, const char *, int); void darwin_register_objc_includes (const char *, const char *, int); #define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes #define TARGET_EXTRA_INCLUDES darwin_register_frameworks void add_framework_path (char *); #define TARGET_OPTF add_framework_path #define TARGET_POSIX_IO #define WINT_TYPE "int" /* Every program on darwin links against libSystem which contains the pthread routines, so there's no need to explicitly call out when doing threaded work. */ #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 #define HAVE_ENABLE_EXECUTE_STACK /* For Apple KEXTs, we make the constructors return this to match gcc 2.95. */ #define TARGET_CXX_CDTOR_RETURNS_THIS (darwin_kextabi_p) #define TARGET_KEXTABI flag_apple_kext /* We have target-specific builtins. */ #define SUBTARGET_FOLD_BUILTIN darwin_fold_builtin #define TARGET_N_FORMAT_TYPES 1 #define TARGET_FORMAT_TYPES darwin_additional_format_types #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. 10.5 is the only version that fully supports all our archs so that's the fall-back default. */ #ifndef DEF_MIN_OSX_VERSION #define DEF_MIN_OSX_VERSION "10.5" #endif /* Later versions of ld64 support coalescing weak code/data without requiring that they be placed in specially identified sections. This is the earliest _tested_ version known to support this so far. */ #define MIN_LD64_NO_COAL_SECTS "236.4" /* From at least version 62.1, ld64 can build symbol indirection stubs as needed, and there is no need for the compiler to emit them. */ #define MIN_LD64_OMIT_STUBS "62.1" #ifndef LD64_VERSION #define LD64_VERSION "62.1" #else #define DEF_LD64 LD64_VERSION #endif #endif /* CONFIG_DARWIN_H */