Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/alpha/vms.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | 77e2b8dfacca |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Output variables, constants and external declarations, for GNU compiler. |
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2 Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2004, 2005, 2007, 2008, |
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3 2009, 2010 |
| 0 | 4 Free Software Foundation, 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 #define TARGET_OBJECT_SUFFIX ".obj" | |
| 23 #define TARGET_EXECUTABLE_SUFFIX ".exe" | |
| 24 | |
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25 /* Alpha/VMS object format is not really Elf, but this makes compiling |
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26 crtstuff.c and dealing with shared library initialization much easier. */ |
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27 #define OBJECT_FORMAT_ELF |
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28 |
| 0 | 29 /* This enables certain macros in alpha.h, which will make an indirect |
| 30 reference to an external symbol an invalid address. This needs to be | |
| 31 defined before we include alpha.h, since it determines which macros | |
| 32 are used for GO_IF_*. */ | |
| 33 | |
| 34 #define NO_EXTERNAL_INDIRECT_ADDRESS | |
| 35 | |
| 36 #define TARGET_OS_CPP_BUILTINS() \ | |
| 37 do { \ | |
| 38 builtin_define_std ("vms"); \ | |
| 39 builtin_define_std ("VMS"); \ | |
| 40 builtin_define ("__ALPHA"); \ | |
| 41 builtin_assert ("system=vms"); \ | |
| 42 if (TARGET_FLOAT_VAX) \ | |
| 43 builtin_define ("__G_FLOAT"); \ | |
| 44 else \ | |
| 45 builtin_define ("__IEEE_FLOAT"); \ | |
| 46 } while (0) | |
| 47 | |
| 48 #undef TARGET_DEFAULT | |
| 49 #define TARGET_DEFAULT (MASK_FPREGS|MASK_GAS) | |
| 50 #undef TARGET_ABI_OPEN_VMS | |
| 51 #define TARGET_ABI_OPEN_VMS 1 | |
| 52 | |
| 53 #undef TARGET_NAME | |
| 54 #define TARGET_NAME "OpenVMS/Alpha" | |
| 55 #undef TARGET_VERSION | |
| 56 #define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME); | |
| 57 | |
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58 #define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO" |
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59 |
| 0 | 60 #undef PCC_STATIC_STRUCT_RETURN |
| 61 | |
| 62 /* "long" is 32 bits, but 64 bits for Ada. */ | |
| 63 #undef LONG_TYPE_SIZE | |
| 64 #define LONG_TYPE_SIZE 32 | |
| 65 #define ADA_LONG_TYPE_SIZE 64 | |
| 66 | |
| 67 /* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended. */ | |
| 68 #undef POINTER_SIZE | |
| 69 #define POINTER_SIZE 32 | |
| 70 #define POINTERS_EXTEND_UNSIGNED 0 | |
| 71 | |
| 72 #define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */ | |
| 73 | |
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74 /* The maximum alignment 'malloc' honors. */ |
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75 #undef MALLOC_ABI_ALIGNMENT |
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76 #define MALLOC_ABI_ALIGNMENT ((TARGET_MALLOC64 ? 16 : 8) * BITS_PER_UNIT) |
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77 |
| 0 | 78 #undef FIXED_REGISTERS |
| 79 #define FIXED_REGISTERS \ | |
| 80 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 81 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ | |
| 82 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 83 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } | |
| 84 | |
| 85 #undef CALL_USED_REGISTERS | |
| 86 #define CALL_USED_REGISTERS \ | |
| 87 {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 88 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ | |
| 89 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ | |
| 90 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } | |
| 91 | |
| 92 /* List the order in which to allocate registers. Each register must be | |
| 93 listed once, even those in FIXED_REGISTERS. | |
| 94 | |
| 95 We allocate in the following order: | |
| 96 $f1 (nonsaved floating-point register) | |
| 97 $f10-$f15 (likewise) | |
| 98 $f22-$f30 (likewise) | |
| 99 $f21-$f16 (likewise, but input args) | |
| 100 $f0 (nonsaved, but return value) | |
| 101 $f2-$f9 (saved floating-point registers) | |
| 102 $1 (nonsaved integer registers) | |
| 103 $22-$25 (likewise) | |
| 104 $28 (likewise) | |
| 105 $0 (likewise, but return value) | |
| 106 $21-$16 (likewise, but input args) | |
| 107 $27 (procedure value in OSF, nonsaved in NT) | |
| 108 $2-$8 (saved integer registers) | |
| 109 $9-$14 (saved integer registers) | |
| 110 $26 (return PC) | |
| 111 $15 (frame pointer) | |
| 112 $29 (global pointer) | |
| 113 $30, $31, $f31 (stack pointer and always zero/ap & fp) */ | |
| 114 | |
| 115 #undef REG_ALLOC_ORDER | |
| 116 #define REG_ALLOC_ORDER \ | |
| 117 {33, \ | |
| 118 42, 43, 44, 45, 46, 47, \ | |
| 119 54, 55, 56, 57, 58, 59, 60, 61, 62, \ | |
| 120 53, 52, 51, 50, 49, 48, \ | |
| 121 32, \ | |
| 122 34, 35, 36, 37, 38, 39, 40, 41, \ | |
| 123 1, \ | |
| 124 22, 23, 24, 25, \ | |
| 125 28, \ | |
| 126 0, \ | |
| 127 21, 20, 19, 18, 17, 16, \ | |
| 128 27, \ | |
| 129 2, 3, 4, 5, 6, 7, 8, \ | |
| 130 9, 10, 11, 12, 13, 14, \ | |
| 131 26, \ | |
| 132 15, \ | |
| 133 29, \ | |
| 134 30, 31, 63 } | |
| 135 | |
| 136 #undef HARD_FRAME_POINTER_REGNUM | |
| 137 #define HARD_FRAME_POINTER_REGNUM 29 | |
| 138 | |
| 139 /* Define registers used by the epilogue and return instruction. */ | |
| 140 #undef EPILOGUE_USES | |
| 141 #define EPILOGUE_USES(REGNO) ((REGNO) == 26 || (REGNO) == 29) | |
| 142 | |
| 143 #undef INITIAL_ELIMINATION_OFFSET | |
| 144 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
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145 ((OFFSET) = alpha_vms_initial_elimination_offset(FROM, TO)) |
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146 |
| 0 | 147 |
| 148 /* Define a data type for recording info about an argument list | |
| 149 during the scan of that argument list. This data type should | |
| 150 hold all necessary information about the function itself | |
| 151 and about the args processed so far, enough to enable macros | |
| 152 such as FUNCTION_ARG to determine where the next arg should go. | |
| 153 | |
| 154 On Alpha/VMS, this is a structure that contains the number of | |
| 155 arguments and, for each argument, the datatype of that argument. | |
| 156 | |
| 157 The number of arguments is a number of words of arguments scanned so far. | |
| 158 Thus 6 or more means all following args should go on the stack. */ | |
| 159 | |
| 160 enum avms_arg_type {I64, FF, FD, FG, FS, FT}; | |
| 161 typedef struct {int num_args; enum avms_arg_type atypes[6];} avms_arg_info; | |
| 162 | |
| 163 #undef CUMULATIVE_ARGS | |
| 164 #define CUMULATIVE_ARGS avms_arg_info | |
| 165 | |
| 166 /* Initialize a variable CUM of type CUMULATIVE_ARGS | |
| 167 for a call to a function whose data type is FNTYPE. | |
| 168 For a library call, FNTYPE is 0. */ | |
| 169 | |
| 170 #undef INIT_CUMULATIVE_ARGS | |
| 171 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ | |
| 172 (CUM).num_args = 0; \ | |
| 173 (CUM).atypes[0] = (CUM).atypes[1] = (CUM).atypes[2] = I64; \ | |
| 174 (CUM).atypes[3] = (CUM).atypes[4] = (CUM).atypes[5] = I64; | |
| 175 | |
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176 #define DEFAULT_PCC_STRUCT_RETURN 0 |
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177 |
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178 #undef ASM_WEAKEN_LABEL |
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179 #define ASM_WEAKEN_LABEL(FILE, NAME) \ |
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180 do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \ |
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181 fputc ('\n', FILE); } while (0) |
| 0 | 182 |
| 183 #define READONLY_DATA_SECTION_ASM_OP "\t.rdata" | |
| 184 #define CTORS_SECTION_ASM_OP "\t.ctors" | |
| 185 #define DTORS_SECTION_ASM_OP "\t.dtors" | |
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186 #define SDATA_SECTION_ASM_OP "\t.sdata" |
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187 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ |
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188 asm (SECTION_OP "\n\t.long " #FUNC"\n"); |
| 0 | 189 |
| 190 #undef ASM_OUTPUT_ADDR_DIFF_ELT | |
| 191 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) gcc_unreachable () | |
| 192 | |
| 193 #undef ASM_OUTPUT_ADDR_VEC_ELT | |
| 194 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
| 195 fprintf (FILE, "\t.quad $L%d\n", (VALUE)) | |
| 196 | |
| 197 #undef CASE_VECTOR_MODE | |
| 198 #define CASE_VECTOR_MODE DImode | |
| 199 #undef CASE_VECTOR_PC_RELATIVE | |
| 200 | |
| 201 #undef ASM_OUTPUT_CASE_LABEL | |
| 202 #define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,TABLEINSN) \ | |
| 203 { ASM_OUTPUT_ALIGN (FILE, 3); (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM); } | |
| 204 | |
| 205 /* This says how to output assembler code to declare an | |
| 206 uninitialized external linkage data object. */ | |
| 207 | |
| 208 #define COMMON_ASM_OP "\t.comm\t" | |
| 209 | |
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210 #undef ASM_OUTPUT_ALIGNED_DECL_COMMON |
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211 #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ |
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212 vms_output_aligned_decl_common (FILE, DECL, NAME, SIZE, ALIGN) |
| 0 | 213 |
| 214 /* Control how constructors and destructors are emitted. */ | |
| 215 #define TARGET_ASM_CONSTRUCTOR vms_asm_out_constructor | |
| 216 #define TARGET_ASM_DESTRUCTOR vms_asm_out_destructor | |
| 217 | |
| 218 #undef SDB_DEBUGGING_INFO | |
| 219 #undef MIPS_DEBUGGING_INFO | |
| 220 #undef DBX_DEBUGGING_INFO | |
| 221 | |
| 222 #define DWARF2_DEBUGGING_INFO 1 | |
| 223 #define VMS_DEBUGGING_INFO 1 | |
| 224 | |
| 225 #define DWARF2_UNWIND_INFO 1 | |
| 226 | |
| 227 #undef EH_RETURN_HANDLER_RTX | |
| 228 #define EH_RETURN_HANDLER_RTX \ | |
| 229 gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, 8)) | |
| 230 | |
| 231 #define LINK_EH_SPEC "vms-dwarf2eh.o%s " | |
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232 #define LINK_GCC_C_SEQUENCE_SPEC "%G" |
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233 |
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234 #ifdef IN_LIBGCC2 |
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235 /* Get the definition for MD_FALLBACK_FRAME_STATE_FOR from a separate |
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236 file. This avoids having to recompile the world instead of libgcc only |
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237 when changes to this macro are exercised. */ |
| 0 | 238 |
| 239 #define MD_UNWIND_SUPPORT "config/alpha/vms-unwind.h" | |
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240 #endif |
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241 |
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242 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \ |
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243 avms_asm_output_external (FILE, DECL, NAME) |
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244 |
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245 typedef struct crtl_name_spec |
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246 { |
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247 const char *const name; |
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248 const char *deccname; |
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249 int referenced; |
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250 } crtl_name_spec; |
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251 |
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252 #include "config/vms/vms-crtl.h" |
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253 |
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254 /* Alias CRTL names to 32/64bit DECCRTL functions. |
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255 Fixme: This should do a binary search. */ |
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256 #define DO_CRTL_NAMES \ |
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257 do \ |
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258 { \ |
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259 int i; \ |
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260 static crtl_name_spec vms_crtl_names[] = CRTL_NAMES; \ |
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261 static int malloc64_init = 0; \ |
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262 \ |
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263 if ((malloc64_init == 0) && TARGET_MALLOC64) \ |
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264 { \ |
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265 for (i=0; vms_crtl_names [i].name; i++) \ |
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266 { \ |
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267 if (strcmp ("calloc", vms_crtl_names [i].name) == 0) \ |
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268 vms_crtl_names [i].deccname = "decc$_calloc64"; \ |
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269 else \ |
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270 if (strcmp ("malloc", vms_crtl_names [i].name) == 0) \ |
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271 vms_crtl_names [i].deccname = "decc$_malloc64"; \ |
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272 else \ |
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273 if (strcmp ("realloc", vms_crtl_names [i].name) == 0) \ |
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274 vms_crtl_names [i].deccname = "decc$_realloc64"; \ |
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275 else \ |
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276 if (strcmp ("strdup", vms_crtl_names [i].name) == 0) \ |
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277 vms_crtl_names [i].deccname = "decc$_strdup64"; \ |
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278 } \ |
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279 malloc64_init = 1; \ |
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280 } \ |
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281 for (i=0; vms_crtl_names [i].name; i++) \ |
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282 if (!vms_crtl_names [i].referenced && \ |
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283 (strcmp (name, vms_crtl_names [i].name) == 0)) \ |
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284 { \ |
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285 fprintf (file, "\t%s=%s\n", \ |
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286 name, vms_crtl_names [i].deccname); \ |
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287 vms_crtl_names [i].referenced = 1; \ |
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288 } \ |
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289 } while (0) |
| 0 | 290 |
| 291 /* This is how to output an assembler line | |
| 292 that says to advance the location counter | |
| 293 to a multiple of 2**LOG bytes. */ | |
| 294 | |
| 295 #undef ASM_OUTPUT_ALIGN | |
| 296 #define ASM_OUTPUT_ALIGN(FILE,LOG) \ | |
| 297 fprintf (FILE, "\t.align %d\n", LOG); | |
| 298 | |
| 299 /* Switch into a generic section. */ | |
| 300 #define TARGET_ASM_NAMED_SECTION vms_asm_named_section | |
| 301 | |
| 302 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ | |
| 303 do { fprintf ((FILE), "\t.literals\n"); \ | |
| 304 in_section = NULL; \ | |
| 305 fprintf ((FILE), "\t"); \ | |
| 306 assemble_name (FILE, LABEL1); \ | |
| 307 fprintf (FILE, " = "); \ | |
| 308 assemble_name (FILE, LABEL2); \ | |
| 309 fprintf (FILE, "\n"); \ | |
| 310 } while (0) | |
| 311 | |
| 312 #undef PREFERRED_DEBUGGING_TYPE | |
| 313 #define PREFERRED_DEBUGGING_TYPE VMS_AND_DWARF2_DEBUG | |
| 314 | |
| 315 #define ASM_PN_FORMAT "%s___%lu" | |
| 316 | |
| 317 /* ??? VMS uses different linkage. */ | |
| 318 #undef TARGET_ASM_OUTPUT_MI_THUNK | |
| 319 | |
| 320 #undef ASM_SPEC | |
| 321 #undef ASM_FINAL_SPEC | |
| 322 | |
| 323 /* The VMS convention is to always provide minimal debug info | |
|
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324 for a traceback unless specifically overridden. */ |
| 0 | 325 |
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326 #undef SUBTARGET_OVERRIDE_OPTIONS |
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327 #define SUBTARGET_OVERRIDE_OPTIONS \ |
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328 do { \ |
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329 if (write_symbols == NO_DEBUG \ |
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330 && debug_info_level == DINFO_LEVEL_NONE) \ |
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331 { \ |
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332 write_symbols = VMS_DEBUG; \ |
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333 debug_info_level = DINFO_LEVEL_TERSE; \ |
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334 } \ |
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335 } while (0) |
| 0 | 336 |
| 337 /* Link with vms-dwarf2.o if -g (except -g0). This causes the | |
| 338 VMS link to pull all the dwarf2 debug sections together. */ | |
| 339 #undef LINK_SPEC | |
| 340 #define LINK_SPEC "%{g:-g vms-dwarf2.o%s} %{g0} %{g1:-g1 vms-dwarf2.o%s} \ | |
| 341 %{g2:-g2 vms-dwarf2.o%s} %{g3:-g3 vms-dwarf2.o%s} %{shared} %{v} %{map}" | |
| 342 | |
| 343 #undef STARTFILE_SPEC | |
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344 #define STARTFILE_SPEC \ |
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345 "%{!shared:%{mvms-return-codes:vcrt0.o%s} %{!mvms-return-codes:pcrt0.o%s} \ |
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346 crtbegin.o%s} \ |
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347 %{!static:%{shared:crtbeginS.o%s}}" |
| 0 | 348 |
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349 #define ENDFILE_SPEC \ |
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350 "%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}" |
| 0 | 351 |
| 352 #define NAME__MAIN "__gccmain" | |
| 353 #define SYMBOL__MAIN __gccmain | |
| 354 | |
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355 #define INIT_SECTION_ASM_OP "\t.section LIB$INITIALIZE,GBL,NOWRT" |
| 0 | 356 |
| 357 #define LONGLONG_STANDALONE 1 | |
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358 |
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359 #undef TARGET_VALID_POINTER_MODE |
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360 #define TARGET_VALID_POINTER_MODE vms_valid_pointer_mode |