Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/i386/darwin.h @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Target definitions for x86 running Darwin. |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2 Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2010 |
| 0 | 3 Free Software Foundation, Inc. |
| 4 Contributed by Apple Computer Inc. | |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify | |
| 9 it under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation; either version 3, or (at your option) | |
| 11 any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU General Public License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 /* Enable Mach-O bits in generic x86 code. */ | |
| 23 #undef TARGET_MACHO | |
| 24 #define TARGET_MACHO 1 | |
| 25 | |
| 26 #define TARGET_VERSION fprintf (stderr, " (i686 Darwin)"); | |
| 27 | |
| 28 #undef TARGET_64BIT | |
| 29 #define TARGET_64BIT OPTION_ISA_64BIT | |
| 30 | |
| 31 #ifdef IN_LIBGCC2 | |
| 32 #undef TARGET_64BIT | |
| 33 #ifdef __x86_64__ | |
| 34 #define TARGET_64BIT 1 | |
| 35 #else | |
| 36 #define TARGET_64BIT 0 | |
| 37 #endif | |
| 38 #endif | |
| 39 | |
| 40 /* Size of the Obj-C jump buffer. */ | |
| 41 #define OBJC_JBLEN ((TARGET_64BIT) ? ((9 * 2) + 3 + 16) : (18)) | |
| 42 | |
| 43 #undef TARGET_FPMATH_DEFAULT | |
| 44 #define TARGET_FPMATH_DEFAULT (TARGET_SSE ? FPMATH_SSE : FPMATH_387) | |
| 45 | |
| 46 #define TARGET_OS_CPP_BUILTINS() \ | |
| 47 do \ | |
| 48 { \ | |
| 49 builtin_define ("__LITTLE_ENDIAN__"); \ | |
| 50 darwin_cpp_builtins (pfile); \ | |
| 51 } \ | |
| 52 while (0) | |
| 53 | |
| 54 #undef PTRDIFF_TYPE | |
| 55 #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") | |
| 56 | |
| 57 #undef WCHAR_TYPE | |
| 58 #define WCHAR_TYPE "int" | |
| 59 | |
| 60 #undef WCHAR_TYPE_SIZE | |
| 61 #define WCHAR_TYPE_SIZE 32 | |
| 62 | |
| 63 #undef MAX_BITS_PER_WORD | |
| 64 #define MAX_BITS_PER_WORD 64 | |
| 65 | |
| 66 #undef FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN | |
| 67 #define FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN (0) | |
| 68 | |
| 69 #undef TARGET_KEEPS_VECTOR_ALIGNED_STACK | |
| 70 #define TARGET_KEEPS_VECTOR_ALIGNED_STACK 1 | |
| 71 | |
| 72 /* On Darwin, the stack is 128-bit aligned at the point of every call. | |
| 73 Failure to ensure this will lead to a crash in the system libraries | |
| 74 or dynamic loader. */ | |
| 75 #undef STACK_BOUNDARY | |
| 76 #define STACK_BOUNDARY 128 | |
| 77 | |
| 78 #undef MAIN_STACK_BOUNDARY | |
| 79 #define MAIN_STACK_BOUNDARY 128 | |
| 80 | |
| 81 /* Since we'll never want a stack boundary less aligned than 128 bits | |
| 82 we need the extra work here otherwise bits of gcc get very grumpy | |
| 83 when we ask for lower alignment. We could just reject values less | |
| 84 than 128 bits for Darwin, but it's easier to up the alignment if | |
| 85 it's below the minimum. */ | |
| 86 #undef PREFERRED_STACK_BOUNDARY | |
| 87 #define PREFERRED_STACK_BOUNDARY \ | |
| 88 MAX (STACK_BOUNDARY, ix86_preferred_stack_boundary) | |
| 89 | |
| 90 /* We want -fPIC by default, unless we're using -static to compile for | |
| 91 the kernel or some such. */ | |
| 92 | |
| 93 #undef CC1_SPEC | |
| 94 #define CC1_SPEC "%(cc1_cpu) \ | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
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95 %<mdynamic-no-pic " /* For now, we just ignore this flag */ " \ |
| 0 | 96 %{!mkernel:%{!static:%{!mdynamic-no-pic:-fPIC}}} \ |
| 97 %{!mmacosx-version-min=*:-mmacosx-version-min=%(darwin_minversion)} \ | |
| 98 %{g: %{!fno-eliminate-unused-debug-symbols: -feliminate-unused-debug-symbols }}" | |
| 99 | |
| 100 #undef ASM_SPEC | |
| 101 #define ASM_SPEC "-arch %(darwin_arch) -force_cpusubtype_ALL" | |
| 102 | |
| 103 #define DARWIN_ARCH_SPEC "%{m64:x86_64;:i386}" | |
| 104 #define DARWIN_SUBARCH_SPEC DARWIN_ARCH_SPEC | |
| 105 | |
| 106 /* Determine a minimum version based on compiler options. */ | |
| 107 #define DARWIN_MINVERSION_SPEC \ | |
| 108 "%{!m64|fgnu-runtime:10.4; \ | |
| 109 ,objective-c|,objc-cpp-output:10.5; \ | |
| 110 ,objective-c-header:10.5; \ | |
| 111 ,objective-c++|,objective-c++-cpp-output:10.5; \ | |
| 112 ,objective-c++-header|,objc++-cpp-output:10.5; \ | |
| 113 :10.4}" | |
| 114 | |
| 115 #undef ENDFILE_SPEC | |
| 116 #define ENDFILE_SPEC \ | |
| 117 "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ | |
| 118 %{mpc32:crtprec32.o%s} \ | |
| 119 %{mpc64:crtprec64.o%s} \ | |
| 120 %{mpc80:crtprec80.o%s}" | |
| 121 | |
| 122 #undef SUBTARGET_EXTRA_SPECS | |
| 123 #define SUBTARGET_EXTRA_SPECS \ | |
| 124 DARWIN_EXTRA_SPECS \ | |
| 125 { "darwin_arch", DARWIN_ARCH_SPEC }, \ | |
| 126 { "darwin_crt2", "" }, \ | |
| 127 { "darwin_subarch", DARWIN_SUBARCH_SPEC }, | |
| 128 | |
| 129 /* Use the following macro for any Darwin/x86-specific command-line option | |
| 130 translation. */ | |
| 131 #define SUBTARGET_OPTION_TRANSLATE_TABLE \ | |
| 132 { "", "" } | |
| 133 | |
| 134 /* The Darwin assembler mostly follows AT&T syntax. */ | |
| 135 #undef ASSEMBLER_DIALECT | |
| 136 #define ASSEMBLER_DIALECT ASM_ATT | |
| 137 | |
| 138 /* Define macro used to output shift-double opcodes when the shift | |
| 139 count is in %cl. Some assemblers require %cl as an argument; | |
| 140 some don't. This macro controls what to do: by default, don't | |
| 141 print %cl. */ | |
| 142 | |
| 143 #define SHIFT_DOUBLE_OMITS_COUNT 0 | |
| 144 | |
| 145 #undef TARGET_ASM_FILE_END | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
146 #define TARGET_ASM_FILE_END darwin_file_end |
| 0 | 147 |
| 148 /* Define the syntax of pseudo-ops, labels and comments. */ | |
| 149 | |
| 150 /* String containing the assembler's comment-starter. */ | |
| 151 | |
| 152 #define ASM_COMMENT_START "#" | |
| 153 | |
| 154 /* By default, target has a 80387, uses IEEE compatible arithmetic, | |
| 155 and returns float values in the 387. */ | |
| 156 | |
| 157 #undef TARGET_SUBTARGET_DEFAULT | |
| 158 #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_128BIT_LONG_DOUBLE) | |
| 159 | |
| 160 /* For darwin we want to target specific processor features as a minimum, | |
| 161 but these unfortunately don't correspond to a specific processor. */ | |
| 162 #undef TARGET_SUBTARGET32_ISA_DEFAULT | |
| 163 #define TARGET_SUBTARGET32_ISA_DEFAULT (OPTION_MASK_ISA_MMX \ | |
| 164 | OPTION_MASK_ISA_SSE \ | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
165 | OPTION_MASK_ISA_SSE2 \ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
166 | OPTION_MASK_ISA_SSE3) |
| 0 | 167 |
| 168 #undef TARGET_SUBTARGET64_ISA_DEFAULT | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
169 #define TARGET_SUBTARGET64_ISA_DEFAULT TARGET_SUBTARGET32_ISA_DEFAULT |
| 0 | 170 |
| 171 /* For now, disable dynamic-no-pic. We'll need to go through i386.c | |
| 172 with a fine-tooth comb looking for refs to flag_pic! */ | |
| 173 #define MASK_MACHO_DYNAMIC_NO_PIC 0 | |
| 174 #define TARGET_DYNAMIC_NO_PIC (target_flags & MASK_MACHO_DYNAMIC_NO_PIC) | |
| 175 | |
| 176 #undef GOT_SYMBOL_NAME | |
| 177 #define GOT_SYMBOL_NAME MACHOPIC_FUNCTION_BASE_NAME | |
| 178 | |
| 179 /* Define the syntax of pseudo-ops, labels and comments. */ | |
| 180 | |
| 181 #define LPREFIX "L" | |
| 182 | |
| 183 /* These are used by -fbranch-probabilities */ | |
| 184 #define HOT_TEXT_SECTION_NAME "__TEXT,__text,regular,pure_instructions" | |
| 185 #define UNLIKELY_EXECUTED_TEXT_SECTION_NAME \ | |
| 186 "__TEXT,__unlikely,regular,pure_instructions" | |
| 187 | |
| 188 /* Assembler pseudos to introduce constants of various size. */ | |
| 189 | |
|
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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190 #define ASM_BYTE "\t.byte\t" |
| 0 | 191 #define ASM_SHORT "\t.word\t" |
| 192 #define ASM_LONG "\t.long\t" | |
| 193 #define ASM_QUAD "\t.quad\t" | |
| 194 | |
| 195 #define SUBTARGET_ENCODE_SECTION_INFO darwin_encode_section_info | |
| 196 | |
| 197 #undef ASM_OUTPUT_ALIGN | |
| 198 #define ASM_OUTPUT_ALIGN(FILE,LOG) \ | |
| 199 do { if ((LOG) != 0) \ | |
| 200 { \ | |
| 201 if (in_section == text_section) \ | |
| 202 fprintf (FILE, "\t%s %d,0x90\n", ALIGN_ASM_OP, (LOG)); \ | |
| 203 else \ | |
| 204 fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG)); \ | |
| 205 } \ | |
| 206 } while (0) | |
| 207 | |
| 208 /* This says how to output an assembler line | |
| 209 to define a global common symbol. */ | |
| 210 | |
| 211 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ | |
| 212 ( fputs (".comm ", (FILE)), \ | |
| 213 assemble_name ((FILE), (NAME)), \ | |
| 214 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED"\n", (ROUNDED))) | |
| 215 | |
| 216 /* This says how to output an assembler line | |
| 217 to define a local common symbol. */ | |
| 218 | |
| 219 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ | |
| 220 ( fputs (".lcomm ", (FILE)), \ | |
| 221 assemble_name ((FILE), (NAME)), \ | |
| 222 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED"\n", (ROUNDED))) | |
| 223 | |
| 224 /* Darwin profiling -- call mcount. */ | |
| 225 #undef FUNCTION_PROFILER | |
| 226 #define FUNCTION_PROFILER(FILE, LABELNO) \ | |
| 227 do { \ | |
| 228 if (MACHOPIC_INDIRECT && !TARGET_64BIT) \ | |
| 229 { \ | |
| 230 const char *name = machopic_mcount_stub_name (); \ | |
| 231 fprintf (FILE, "\tcall %s\n", name+1); /* skip '&' */ \ | |
| 232 machopic_validate_stub_or_non_lazy_ptr (name); \ | |
| 233 } \ | |
| 234 else fprintf (FILE, "\tcall mcount\n"); \ | |
| 235 } while (0) | |
| 236 | |
| 237 #define C_COMMON_OVERRIDE_OPTIONS \ | |
| 238 do { \ | |
| 239 SUBTARGET_C_COMMON_OVERRIDE_OPTIONS; \ | |
| 240 } while (0) | |
| 241 | |
| 242 /* Darwin on x86_64 uses dwarf-2 by default. Pre-darwin9 32-bit | |
| 243 compiles default to stabs+. darwin9+ defaults to dwarf-2. */ | |
| 244 #ifndef DARWIN_PREFER_DWARF | |
| 245 #undef PREFERRED_DEBUGGING_TYPE | |
| 246 #define PREFERRED_DEBUGGING_TYPE (TARGET_64BIT ? DWARF2_DEBUG : DBX_DEBUG) | |
| 247 #endif | |
| 248 | |
| 249 /* Darwin uses the standard DWARF register numbers but the default | |
| 250 register numbers for STABS. Fortunately for 64-bit code the | |
| 251 default and the standard are the same. */ | |
| 252 #undef DBX_REGISTER_NUMBER | |
| 253 #define DBX_REGISTER_NUMBER(n) \ | |
| 254 (TARGET_64BIT ? dbx64_register_map[n] \ | |
| 255 : write_symbols == DWARF2_DEBUG ? svr4_dbx_register_map[n] \ | |
| 256 : dbx_register_map[n]) | |
| 257 | |
| 258 /* Unfortunately, the 32-bit EH information also doesn't use the standard | |
| 259 DWARF register numbers. */ | |
| 260 #define DWARF2_FRAME_REG_OUT(n, for_eh) \ | |
| 261 (! (for_eh) || write_symbols != DWARF2_DEBUG || TARGET_64BIT ? (n) \ | |
| 262 : (n) == 5 ? 4 \ | |
| 263 : (n) == 4 ? 5 \ | |
| 264 : (n) >= 11 && (n) <= 18 ? (n) + 1 \ | |
| 265 : (n)) | |
| 266 | |
| 267 #undef REGISTER_SUBTARGET_PRAGMAS | |
| 268 #define REGISTER_SUBTARGET_PRAGMAS() DARWIN_REGISTER_TARGET_PRAGMAS() | |
| 269 | |
| 270 #undef TARGET_SET_DEFAULT_TYPE_ATTRIBUTES | |
| 271 #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES darwin_set_default_type_attributes | |
| 272 | |
| 273 /* For 64-bit, we need to add 4 because @GOTPCREL is relative to the | |
| 274 end of the instruction, but without the 4 we'd only have the right | |
| 275 address for the start of the instruction. */ | |
| 276 #undef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX | |
| 277 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ | |
| 278 if (TARGET_64BIT) \ | |
| 279 { \ | |
| 280 if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_pcrel) \ | |
| 281 { \ | |
| 282 fputs (ASM_LONG, FILE); \ | |
| 283 assemble_name (FILE, XSTR (ADDR, 0)); \ | |
| 284 fputs ("+4@GOTPCREL", FILE); \ | |
| 285 goto DONE; \ | |
| 286 } \ | |
| 287 } \ | |
| 288 else \ | |
| 289 { \ | |
| 290 if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) \ | |
| 291 { \ | |
| 292 darwin_non_lazy_pcrel (FILE, ADDR); \ | |
| 293 goto DONE; \ | |
| 294 } \ | |
| 295 } | |
| 296 | |
| 297 /* This needs to move since i386 uses the first flag and other flags are | |
| 298 used in Mach-O. */ | |
| 299 #undef MACHO_SYMBOL_FLAG_VARIABLE | |
| 300 #define MACHO_SYMBOL_FLAG_VARIABLE ((SYMBOL_FLAG_MACH_DEP) << 3) | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
301 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
302 #define SUBTARGET32_DEFAULT_CPU "i686" |