800 lines
27 KiB
C++
800 lines
27 KiB
C++
/* Target definitions for Darwin (Mac OS X) systems.
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Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002
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Free Software Foundation, Inc.
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Contributed by Apple Computer Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* The definitions in this file are common to all processor types
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running Darwin, which is the kernel for Mac OS X. Darwin is
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basically a BSD user layer laid over a Mach kernel, then evolved
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for many years (at NeXT) in parallel with other Unix systems. So
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while the runtime is a somewhat idiosyncratic Mach-based thing,
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other definitions look like they would for a BSD variant. */
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/* Although NeXT ran on many different architectures, as of Jan 2001
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the only supported Darwin targets are PowerPC and x86. */
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/* Technically, STANDARD_EXEC_PREFIX should be /usr/libexec/, but in
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practice this makes it hard to install new compilers elsewhere, so
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leave it undefined and expect system builders to set configure args
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correctly. */
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/* Suppress g++ attempt to link in the math library automatically.
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(Some Darwin versions have a libm, but they seem to cause problems
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for C++ executables.) */
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#define MATH_LIBRARY ""
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/* We have atexit. */
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#define HAVE_ATEXIT
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/* Define an empty body for the function do_global_dtors() in libgcc2.c. */
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#define DO_GLOBAL_DTORS_BODY
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/* The string value for __SIZE_TYPE__. */
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#ifndef SIZE_TYPE
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#define SIZE_TYPE "long unsigned int"
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#endif
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/* Type used for ptrdiff_t, as a string used in a declaration. */
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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/* wchar_t is int. */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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/* Default to using the NeXT-style runtime, since that's what is
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pre-installed on Darwin systems. */
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#define NEXT_OBJC_RUNTIME
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/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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we want to retain compatibility with older gcc versions. */
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#undef DEFAULT_PCC_STRUCT_RETURN
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* Don't warn about MacOS-style 'APPL' four-char-constants. */
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#undef WARN_FOUR_CHAR_CONSTANTS
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#define WARN_FOUR_CHAR_CONSTANTS 0
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/* Machine dependent cpp options. */
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/* The sequence here allows us to get a more specific version number
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glued into __APPLE_CC__. Normally this number would be updated as
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part of submitting to a release engineering organization. */
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#ifndef APPLE_CC
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#define APPLE_CC 999
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#endif
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#define STRINGIFY_THIS(x) # x
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#define REALLY_STRINGIFY(x) STRINGIFY_THIS(x)
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#undef CPP_SPEC
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#define CPP_SPEC "-D__APPLE_CC__=" REALLY_STRINGIFY(APPLE_CC) " \
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%{static:-D__STATIC__}%{!static:-D__DYNAMIC__}"
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/* Machine dependent libraries. */
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#undef LIB_SPEC
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#define LIB_SPEC "%{!static:-lSystem}"
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/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{pg:%{static:-lgcrt0.o}%{!static:-lgcrt1.o}} \
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%{!pg:%{static:-lcrt0.o}%{!static:-lcrt1.o}}"
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#undef DOLLARS_IN_IDENTIFIERS
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#define DOLLARS_IN_IDENTIFIERS 2
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/* Allow #sccs (but don't do anything). */
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#define SCCS_DIRECTIVE
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/* We use Dbx symbol format. */
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#define DBX_DEBUGGING_INFO
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/* Also enable Dwarf 2 as an option. */
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#define DWARF2_DEBUGGING_INFO
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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/* When generating stabs debugging, use N_BINCL entries. */
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#define DBX_USE_BINCL
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/* There is no limit to the length of stabs strings. */
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#define DBX_CONTIN_LENGTH 0
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/* gdb needs a null N_SO at the end of each file for scattered loading. */
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#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
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#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
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do { text_section (); \
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fprintf (FILE, \
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"\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", "" , N_SO); \
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} while (0)
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/* Our profiling scheme doesn't LP labels and counter words. */
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#define NO_PROFILE_COUNTERS
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP
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#undef INVOKE__main
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#define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
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#define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
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/* Don't output a .file directive. That is only used by the assembler for
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error reporting. */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE)
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#undef ASM_FILE_END
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#define ASM_FILE_END(FILE) \
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do { \
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machopic_finish (asm_out_file); \
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if (strcmp (lang_hooks.name, "GNU C++") == 0) \
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{ \
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constructor_section (); \
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destructor_section (); \
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ASM_OUTPUT_ALIGN (FILE, 1); \
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} \
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} while (0)
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/* Give ObjcC methods pretty symbol names. */
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#undef OBJC_GEN_METHOD_LABEL
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#define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
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do { if (CAT_NAME) \
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sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
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(CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
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else \
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sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
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(CLASS_NAME), (SEL_NAME)); \
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} while (0)
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/* The RTTI data (e.g., __ti4name) is common and public (and static),
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but it does need to be referenced via indirect PIC data pointers.
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The machopic_define_name calls are telling the machopic subsystem
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that the name *is* defined in this module, so it doesn't need to
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make them indirect. */
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#undef ASM_DECLARE_OBJECT_NAME
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#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
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do { \
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const char *xname = NAME; \
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if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
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xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
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if ((TREE_STATIC (DECL) \
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&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
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|| DECL_INITIAL (DECL)) \
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machopic_define_name (xname); \
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if ((TREE_STATIC (DECL) \
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&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
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|| DECL_INITIAL (DECL)) \
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ENCODE_SECTION_INFO (DECL); \
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ASM_OUTPUT_LABEL (FILE, xname); \
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} while (0)
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#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
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do { \
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const char *xname = NAME; \
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if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
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xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
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if ((TREE_STATIC (DECL) \
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&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
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|| DECL_INITIAL (DECL)) \
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machopic_define_name (xname); \
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if ((TREE_STATIC (DECL) \
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&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
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|| DECL_INITIAL (DECL)) \
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ENCODE_SECTION_INFO (DECL); \
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ASM_OUTPUT_LABEL (FILE, xname); \
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/* Avoid generating stubs for functions we've just defined by \
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outputting any required stub name label now. */ \
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machopic_output_possible_stub_label (FILE, xname); \
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} while (0)
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/* Wrap new method names in quotes so the assembler doesn't gag.
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Make Objective-C internal symbols local. */
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#undef ASM_OUTPUT_LABELREF
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#define ASM_OUTPUT_LABELREF(FILE,NAME) \
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do { \
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STRIP_NAME_ENCODING (NAME, NAME); \
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if (NAME[0] == '&' || NAME[0] == '*') \
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{ \
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int len = strlen (NAME); \
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if (len > 6 && !strcmp ("$stub", NAME + len - 5)) \
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machopic_validate_stub_or_non_lazy_ptr (NAME, 1); \
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else if (len > 7 && !strcmp ("$stub\"", NAME + len - 6)) \
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machopic_validate_stub_or_non_lazy_ptr (NAME, 1); \
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else if (len > 14 && !strcmp ("$non_lazy_ptr", NAME + len - 13)) \
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machopic_validate_stub_or_non_lazy_ptr (NAME, 0); \
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fputs (&NAME[1], FILE); \
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} \
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else if (NAME[0] == '+' || NAME[0] == '-') \
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fprintf (FILE, "\"%s\"", NAME); \
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else if (!strncmp (NAME, "_OBJC_", 6)) \
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fprintf (FILE, "L%s", NAME); \
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else if (!strncmp (NAME, ".objc_class_name_", 17)) \
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fprintf (FILE, "%s", NAME); \
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else \
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fprintf (FILE, "_%s", NAME); \
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} while (0)
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#undef ALIGN_ASM_OP
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#define ALIGN_ASM_OP ".align"
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#undef ASM_OUTPUT_ALIGN
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#define ASM_OUTPUT_ALIGN(FILE,LOG) \
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if ((LOG) != 0) \
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fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
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/* Ensure correct alignment of bss data. */
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#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
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#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
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do { \
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fputs (".lcomm ", (FILE)); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ",%u,%u\n", (SIZE), floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
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if ((DECL) && ((TREE_STATIC (DECL) \
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&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
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|| DECL_INITIAL (DECL))) \
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ENCODE_SECTION_INFO (DECL); \
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if ((DECL) && ((TREE_STATIC (DECL) \
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&& (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
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|| DECL_INITIAL (DECL))) \
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machopic_define_name (NAME); \
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} while (0)
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/* Output nothing for #ident. */
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#undef ASM_OUTPUT_IDENT
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#define ASM_OUTPUT_IDENT(FILE, NAME)
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/* The maximum alignment which the object file format can support.
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For Mach-O, this is 2^15. */
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#undef MAX_OFILE_ALIGNMENT
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#define MAX_OFILE_ALIGNMENT 0x8000
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/* Create new Mach-O sections. */
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#undef SECTION_FUNCTION
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#define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC) \
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extern void FUNCTION PARAMS ((void)); \
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void \
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FUNCTION () \
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{ \
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if (in_section != SECTION) \
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{ \
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if (OBJC) \
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objc_section_init (); \
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data_section (); \
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if (asm_out_file) \
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fprintf (asm_out_file, "%s\n", DIRECTIVE); \
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in_section = SECTION; \
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} \
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} \
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#define ALIAS_SECTION(enum_value, alias_name) \
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do { if (!strcmp (alias_name, name)) \
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section_alias[enum_value] = (alias ? get_identifier (alias) : 0); \
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} while (0)
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/* Darwin uses many types of special sections. */
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS \
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in_const, in_const_data, in_cstring, in_literal4, in_literal8, \
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in_constructor, in_destructor, in_mod_init, in_mod_term, \
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in_objc_class, in_objc_meta_class, in_objc_category, \
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in_objc_class_vars, in_objc_instance_vars, \
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in_objc_cls_meth, in_objc_inst_meth, \
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in_objc_cat_cls_meth, in_objc_cat_inst_meth, \
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in_objc_selector_refs, \
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in_objc_selector_fixup, \
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in_objc_symbols, in_objc_module_info, \
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in_objc_protocol, in_objc_string_object, \
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in_objc_constant_string_object, \
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in_objc_class_names, in_objc_meth_var_names, \
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in_objc_meth_var_types, in_objc_cls_refs, \
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in_machopic_nl_symbol_ptr, \
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in_machopic_lazy_symbol_ptr, \
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in_machopic_symbol_stub, \
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in_machopic_picsymbol_stub, \
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in_darwin_exception, in_darwin_eh_frame, \
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num_sections
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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static void objc_section_init PARAMS ((void)); \
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SECTION_FUNCTION (const_section, \
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in_const, \
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".const", 0) \
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SECTION_FUNCTION (const_data_section, \
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in_const_data, \
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".const_data", 0) \
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SECTION_FUNCTION (cstring_section, \
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in_cstring, \
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".cstring", 0) \
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SECTION_FUNCTION (literal4_section, \
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in_literal4, \
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".literal4", 0) \
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SECTION_FUNCTION (literal8_section, \
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in_literal8, \
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".literal8", 0) \
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SECTION_FUNCTION (constructor_section, \
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in_constructor, \
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".constructor", 0) \
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SECTION_FUNCTION (mod_init_section, \
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in_mod_init, \
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".mod_init_func", 0) \
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SECTION_FUNCTION (mod_term_section, \
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in_mod_term, \
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".mod_term_func", 0) \
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SECTION_FUNCTION (destructor_section, \
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in_destructor, \
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".destructor", 0) \
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SECTION_FUNCTION (objc_class_section, \
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in_objc_class, \
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".objc_class", 1) \
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SECTION_FUNCTION (objc_meta_class_section, \
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in_objc_meta_class, \
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".objc_meta_class", 1) \
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SECTION_FUNCTION (objc_category_section, \
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in_objc_category, \
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".objc_category", 1) \
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SECTION_FUNCTION (objc_class_vars_section, \
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in_objc_class_vars, \
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".objc_class_vars", 1) \
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SECTION_FUNCTION (objc_instance_vars_section, \
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in_objc_instance_vars, \
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".objc_instance_vars", 1) \
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SECTION_FUNCTION (objc_cls_meth_section, \
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in_objc_cls_meth, \
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".objc_cls_meth", 1) \
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SECTION_FUNCTION (objc_inst_meth_section, \
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in_objc_inst_meth, \
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".objc_inst_meth", 1) \
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SECTION_FUNCTION (objc_cat_cls_meth_section, \
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in_objc_cat_cls_meth, \
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".objc_cat_cls_meth", 1) \
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SECTION_FUNCTION (objc_cat_inst_meth_section, \
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in_objc_cat_inst_meth, \
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".objc_cat_inst_meth", 1) \
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SECTION_FUNCTION (objc_selector_refs_section, \
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in_objc_selector_refs, \
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".objc_message_refs", 1) \
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SECTION_FUNCTION (objc_selector_fixup_section, \
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in_objc_selector_fixup, \
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".section __OBJC, __sel_fixup", 1) \
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SECTION_FUNCTION (objc_symbols_section, \
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in_objc_symbols, \
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".objc_symbols", 1) \
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SECTION_FUNCTION (objc_module_info_section, \
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in_objc_module_info, \
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".objc_module_info", 1) \
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SECTION_FUNCTION (objc_protocol_section, \
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in_objc_protocol, \
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".objc_protocol", 1) \
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SECTION_FUNCTION (objc_string_object_section, \
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in_objc_string_object, \
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".objc_string_object", 1) \
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SECTION_FUNCTION (objc_constant_string_object_section, \
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in_objc_constant_string_object, \
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".section __OBJC, __cstring_object", 1) \
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SECTION_FUNCTION (objc_class_names_section, \
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in_objc_class_names, \
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".objc_class_names", 1) \
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SECTION_FUNCTION (objc_meth_var_names_section, \
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in_objc_meth_var_names, \
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".objc_meth_var_names", 1) \
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SECTION_FUNCTION (objc_meth_var_types_section, \
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in_objc_meth_var_types, \
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".objc_meth_var_types", 1) \
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SECTION_FUNCTION (objc_cls_refs_section, \
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in_objc_cls_refs, \
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".objc_cls_refs", 1) \
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\
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SECTION_FUNCTION (machopic_lazy_symbol_ptr_section, \
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in_machopic_lazy_symbol_ptr, \
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".lazy_symbol_pointer", 0) \
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SECTION_FUNCTION (machopic_nl_symbol_ptr_section, \
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in_machopic_nl_symbol_ptr, \
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".non_lazy_symbol_pointer", 0) \
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SECTION_FUNCTION (machopic_symbol_stub_section, \
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in_machopic_symbol_stub, \
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".symbol_stub", 0) \
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SECTION_FUNCTION (machopic_picsymbol_stub_section, \
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in_machopic_picsymbol_stub, \
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".picsymbol_stub", 0) \
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SECTION_FUNCTION (darwin_exception_section, \
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in_darwin_exception, \
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".section __TEXT,__gcc_except_tab", 0) \
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SECTION_FUNCTION (darwin_eh_frame_section, \
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in_darwin_eh_frame, \
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".section __TEXT,__eh_frame", 0) \
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\
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static void \
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objc_section_init () \
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{ \
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static int been_here = 0; \
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\
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if (been_here == 0) \
|
|
{ \
|
|
been_here = 1; \
|
|
/* written, cold -> hot */ \
|
|
objc_cat_cls_meth_section (); \
|
|
objc_cat_inst_meth_section (); \
|
|
objc_string_object_section (); \
|
|
objc_constant_string_object_section (); \
|
|
objc_selector_refs_section (); \
|
|
objc_selector_fixup_section (); \
|
|
objc_cls_refs_section (); \
|
|
objc_class_section (); \
|
|
objc_meta_class_section (); \
|
|
/* shared, hot -> cold */ \
|
|
objc_cls_meth_section (); \
|
|
objc_inst_meth_section (); \
|
|
objc_protocol_section (); \
|
|
objc_class_names_section (); \
|
|
objc_meth_var_types_section (); \
|
|
objc_meth_var_names_section (); \
|
|
objc_category_section (); \
|
|
objc_class_vars_section (); \
|
|
objc_instance_vars_section (); \
|
|
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)
|
|
|
|
#define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \
|
|
do { \
|
|
if (FILE) { \
|
|
if (flag_pic) \
|
|
fprintf (FILE, "\t.lazy_reference "); \
|
|
else \
|
|
fprintf (FILE, "\t.reference "); \
|
|
assemble_name (FILE, NAME); \
|
|
fprintf (FILE, "\n"); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME) \
|
|
do { \
|
|
if (FILE) { \
|
|
fprintf (FILE, "\t"); \
|
|
assemble_name (FILE, NAME); \
|
|
fprintf (FILE, "=0\n"); \
|
|
assemble_global (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)
|
|
|
|
#undef ASM_GENERATE_INTERNAL_LABEL
|
|
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,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. */
|
|
|
|
#undef ASM_OUTPUT_INTERNAL_LABEL
|
|
#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
|
|
fprintf (FILE, "%s%d:\n", PREFIX, NUM)
|
|
|
|
/* Since we have a separate readonly data section, define this so that
|
|
jump tables end up in text rather than data. */
|
|
|
|
#ifndef JUMP_TABLES_IN_TEXT_SECTION
|
|
#define JUMP_TABLES_IN_TEXT_SECTION 1
|
|
#endif
|
|
|
|
/* 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. */
|
|
|
|
#define MACHOPIC_INDIRECT (flag_pic)
|
|
#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 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); \
|
|
STRIP_NAME_ENCODING (symbol_, symbol_); \
|
|
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 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 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)
|