freebsd.h revision 34269
190792Sgshapiro/* Definitions for Intel 386 running FreeBSD with either a.out or ELF format 290792Sgshapiro Copyright (C) 1994, 1995 Free Software Foundation, Inc. 390792Sgshapiro Contributed by Eric Youngdale. 490792Sgshapiro Modified for stabs-in-ELF by H.J. Lu. 590792Sgshapiro Adapted from Linux version by John Polstra. 690792Sgshapiro Added support for generating "old a.out gas" on the fly by Peter Wemm. 790792Sgshapiro 890792SgshapiroThis file is part of GNU CC. 990792Sgshapiro 1090792SgshapiroGNU CC is free software; you can redistribute it and/or modify 1190792Sgshapiroit under the terms of the GNU General Public License as published by 1290792Sgshapirothe Free Software Foundation; either version 2, or (at your option) 1390792Sgshapiroany later version. 1490792Sgshapiro 1590792SgshapiroGNU CC is distributed in the hope that it will be useful, 1690792Sgshapirobut WITHOUT ANY WARRANTY; without even the implied warranty of 1790792SgshapiroMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1890792SgshapiroGNU General Public License for more details. 1990792Sgshapiro 2090792SgshapiroYou should have received a copy of the GNU General Public License 2190792Sgshapiroalong with GNU CC; see the file COPYING. If not, write to 2290792Sgshapirothe Free Software Foundation, 59 Temple Place - Suite 330, 2390792SgshapiroBoston, MA 02111-1307, USA. */ 2490792Sgshapiro 2590792Sgshapiro/* A lie, I guess, but the general idea behind FreeBSD/ELF is that we are 2690792Sgshapiro supposed to be outputting something that will assemble under SVr4. 2790792Sgshapiro This gets us pretty close. */ 2890792Sgshapiro#include <i386/i386.h> /* Base i386 target machine definitions */ 2990792Sgshapiro#include <i386/att.h> /* Use the i386 AT&T assembler syntax */ 3090792Sgshapiro#include <linux.h> /* some common stuff */ 3190792Sgshapiro 3290792Sgshapiro/* Don't assume anything about the header files. */ 3390792Sgshapiro#define NO_IMPLICIT_EXTERN_C 3490792Sgshapiro 3590792Sgshapiro/* This defines which switch letters take arguments. On svr4, most of 3690792Sgshapiro the normal cases (defined in gcc.c) apply, and we also have -h* and 3790792Sgshapiro -z* options (for the linker). We have a slightly different mix. We 3890792Sgshapiro have -R (alias --rpath), no -z, --soname (-h), --assert etc. */ 3990792Sgshapiro 4090792Sgshapiro#undef SWITCH_TAKES_ARG 4190792Sgshapiro#define SWITCH_TAKES_ARG(CHAR) \ 4290792Sgshapiro ( (CHAR) == 'D' \ 4390792Sgshapiro || (CHAR) == 'U' \ 4490792Sgshapiro || (CHAR) == 'o' \ 4590792Sgshapiro || (CHAR) == 'e' \ 4690792Sgshapiro || (CHAR) == 'T' \ 4790792Sgshapiro || (CHAR) == 'u' \ 4890792Sgshapiro || (CHAR) == 'I' \ 4990792Sgshapiro || (CHAR) == 'm' \ 5090792Sgshapiro || (CHAR) == 'L' \ 5190792Sgshapiro || (CHAR) == 'A' \ 5290792Sgshapiro || (CHAR) == 'h' \ 5390792Sgshapiro || (CHAR) == 'z' /* ignored by ld */ \ 5490792Sgshapiro || (CHAR) == 'R') 5590792Sgshapiro 5690792Sgshapiro#undef WORD_SWITCH_TAKES_ARG 5790792Sgshapiro#define WORD_SWITCH_TAKES_ARG(STR) \ 5890792Sgshapiro (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ 5990792Sgshapiro || !strcmp (STR, "rpath") || !strcmp (STR, "rpath-link") \ 6090792Sgshapiro || !strcmp (STR, "soname") || !strcmp (STR, "defsym") \ 6190792Sgshapiro || !strcmp (STR, "assert") || !strcmp (STR, "dynamic-linker")) 6290792Sgshapiro 6390792Sgshapiro#undef TARGET_VERSION 6490792Sgshapiro#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD)"); 6590792Sgshapiro 6690792Sgshapiro#define MASK_PROFILER_EPILOGUE 010000000000 6790792Sgshapiro#define MASK_AOUT 004000000000 /* a.out not elf */ 6890792Sgshapiro#define MASK_UNDERSCORES 002000000000 /* use leading _ */ 6990792Sgshapiro 7090792Sgshapiro#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE) 7190792Sgshapiro#define TARGET_AOUT (target_flags & MASK_AOUT) 7290792Sgshapiro#define TARGET_ELF ((target_flags & MASK_AOUT) == 0) 7390792Sgshapiro#define TARGET_UNDERSCORES ((target_flags & MASK_UNDERSCORES) != 0) 7490792Sgshapiro 7590792Sgshapiro#undef SUBTARGET_SWITCHES 7690792Sgshapiro#define SUBTARGET_SWITCHES \ 7790792Sgshapiro { "profiler-epilogue", MASK_PROFILER_EPILOGUE}, \ 7890792Sgshapiro { "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE}, \ 7990792Sgshapiro { "aout", MASK_AOUT}, \ 8090792Sgshapiro { "no-aout", -MASK_AOUT}, \ 81112810Sgshapiro { "underscores", MASK_UNDERSCORES}, \ 8290792Sgshapiro { "no-underscores", -MASK_UNDERSCORES}, 8390792Sgshapiro 8490792Sgshapiro/* The svr4 ABI for the i386 says that records and unions are returned 8590792Sgshapiro in memory. */ 8690792Sgshapiro/* On FreeBSD, we do not. */ 87112810Sgshapiro#undef DEFAULT_PCC_STRUCT_RETURN 8890792Sgshapiro#define DEFAULT_PCC_STRUCT_RETURN 0 8990792Sgshapiro 9090792Sgshapiro#define SUPPORTS_WEAK TARGET_ELF 91112810Sgshapiro 9290792Sgshapiro/* Prefix for internally generated assembler labels. If we aren't using 9390792Sgshapiro underscores, we are using prefix `.'s to identify labels that should 9490792Sgshapiro be ignored, as in `i386/gas.h' --karl@cs.umb.edu */ 95#undef LPREFIX 96#define LPREFIX ((TARGET_UNDERSCORES) ? "L" : ".L") 97 98/* Override the default comment-starter of "/". */ 99#undef ASM_COMMENT_START 100#define ASM_COMMENT_START "#" 101 102#undef COMMENT_BEGIN 103#define COMMENT_BEGIN "#" 104 105#undef ASM_APP_ON 106#define ASM_APP_ON "#APP\n" 107 108#undef ASM_APP_OFF 109#define ASM_APP_OFF "#NO_APP\n" 110 111/* Output at beginning of assembler file. */ 112/* The .file command should always begin the output. */ 113 114#undef ASM_FILE_START 115#define ASM_FILE_START(FILE) \ 116 do { \ 117 output_file_directive (FILE, main_input_filename); \ 118 if (TARGET_ELF) \ 119 fprintf (FILE, "\t.version\t\"01.01\"\n"); \ 120 } while (0) 121 122/* don't override the defauts, in case gdb gets upset */ 123#undef ASM_IDENTIFY_GCC 124 125/* This is how to store into the string BUF 126 the symbol_ref name of an internal numbered label where 127 PREFIX is the class of label and NUM is the number within the class. 128 This is suitable for output with `assemble_name'. */ 129#undef ASM_GENERATE_INTERNAL_LABEL 130#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \ 131 sprintf ((BUF), "*%s%s%d", (TARGET_UNDERSCORES) ? "" : ".", \ 132 (PREFIX), (NUMBER)) 133 134/* This is how to output an internal numbered label where 135 PREFIX is the class of label and NUM is the number within the class. */ 136#undef ASM_OUTPUT_INTERNAL_LABEL 137#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ 138 fprintf (FILE, "%s%s%d:\n", (TARGET_UNDERSCORES) ? "" : ".", \ 139 PREFIX, NUM) 140 141/* This is how to output a reference to a user-level label named NAME. */ 142#undef ASM_OUTPUT_LABELREF 143#define ASM_OUTPUT_LABELREF(FILE,NAME) \ 144 fprintf (FILE, "%s%s", (TARGET_UNDERSCORES) ? "_" : "", NAME) 145 146 147/* This is how to output an element of a case-vector that is relative. 148 This is only used for PIC code. See comments by the `casesi' insn in 149 i386.md for an explanation of the expression this outputs. */ 150#undef ASM_OUTPUT_ADDR_DIFF_ELT 151#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ 152 fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE) 153 154#undef ASM_OUTPUT_ALIGN 155#define ASM_OUTPUT_ALIGN(FILE,LOG) \ 156 if ((LOG)!=0) fprintf ((FILE), "\t.p2align %d\n", (LOG)) 157 158/* Align labels, etc. at 4-byte boundaries. 159 For the 486, align to 16-byte boundary for sake of cache. */ 160#undef ASM_OUTPUT_ALIGN_CODE 161#define ASM_OUTPUT_ALIGN_CODE(FILE) \ 162 fprintf ((FILE), "\t.p2align %d,0x90\n", i386_align_jumps) 163 164/* Align start of loop at 4-byte boundary. */ 165#undef ASM_OUTPUT_LOOP_ALIGN 166#define ASM_OUTPUT_LOOP_ALIGN(FILE) \ 167 fprintf ((FILE), "\t.p2align %d,0x90\n", i386_align_loops) 168 169 170/* conditionalize the use of ".section rodata" on elf mode - otherwise .text */ 171#undef USE_CONST_SECTION 172#define USE_CONST_SECTION TARGET_ELF 173 174/* A C statement (sans semicolon) to output an element in the table of 175 global constructors. */ 176#undef ASM_OUTPUT_CONSTRUCTOR 177#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ 178 do { \ 179 if (TARGET_ELF) { \ 180 ctors_section (); \ 181 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ 182 assemble_name (FILE, NAME); \ 183 fprintf (FILE, "\n"); \ 184 } else { \ 185 fprintf (asm_out_file, "%s \"%s__CTOR_LIST__\",22,0,0,", ASM_STABS_OP, \ 186 (TARGET_UNDERSCORES) ? "_" : ""); \ 187 assemble_name (asm_out_file, name); \ 188 fputc ('\n', asm_out_file); \ 189 } \ 190 } while (0) 191 192/* A C statement (sans semicolon) to output an element in the table of 193 global destructors. */ 194#undef ASM_OUTPUT_DESTRUCTOR 195#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ 196 do { \ 197 if (TARGET_ELF) { \ 198 dtors_section (); \ 199 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ 200 assemble_name (FILE, NAME); \ 201 fprintf (FILE, "\n"); \ 202 } else { \ 203 fprintf (asm_out_file, "%s \"%s__DTOR_LIST__\",22,0,0,", ASM_STABS_OP, \ 204 (TARGET_UNDERSCORES) ? "_" : ""); \ 205 assemble_name (asm_out_file, name); \ 206 fputc ('\n', asm_out_file); \ 207 } \ 208 } while (0) 209 210/* This says how to output assembler code to declare an 211 uninitialized internal linkage data object. Under SVR4, 212 the linker seems to want the alignment of data objects 213 to depend on their types. We do exactly that here. */ 214 215#undef ASM_OUTPUT_ALIGNED_LOCAL 216#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ 217do { \ 218 if (TARGET_ELF) { \ 219 fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \ 220 assemble_name ((FILE), (NAME)); \ 221 fprintf ((FILE), "\n"); \ 222 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ 223 } else { \ 224 int rounded = (SIZE); \ 225 if (rounded == 0) rounded = 1; \ 226 rounded += (BIGGEST_ALIGNMENT / BITS_PER_UNIT) - 1; \ 227 rounded = (rounded / (BIGGEST_ALIGNMENT / BITS_PER_UNIT) \ 228 * (BIGGEST_ALIGNMENT / BITS_PER_UNIT)); \ 229 fputs (".lcomm ", (FILE)); \ 230 assemble_name ((FILE), (NAME)); \ 231 fprintf ((FILE), ",%u\n", (rounded)); \ 232 } \ 233} while (0) 234 235#undef ASM_OUTPUT_ALIGNED_COMMON 236#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ 237do { \ 238 if (TARGET_ELF) { \ 239 fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \ 240 assemble_name ((FILE), (NAME)); \ 241 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ 242 } else { \ 243 int rounded = (SIZE); \ 244 if (rounded == 0) rounded = 1; \ 245 rounded += (BIGGEST_ALIGNMENT / BITS_PER_UNIT) - 1; \ 246 rounded = (rounded / (BIGGEST_ALIGNMENT / BITS_PER_UNIT) \ 247 * (BIGGEST_ALIGNMENT / BITS_PER_UNIT)); \ 248 fputs (".comm ", (FILE)); \ 249 assemble_name ((FILE), (NAME)); \ 250 fprintf ((FILE), ",%u\n", (rounded)); \ 251 } \ 252} while (0) 253 254/* Turn off svr4.h version, it chokes the old gas. The old layout 255 works fine under new gas anyway. */ 256#undef ASM_OUTPUT_ASCII 257 258/* How to output some space */ 259#undef ASM_OUTPUT_SKIP 260#define ASM_OUTPUT_SKIP(FILE,SIZE) \ 261do { \ 262 if (TARGET_ELF) { \ 263 fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE)); \ 264 } else { \ 265 fprintf (FILE, "\t.space %u\n", (SIZE)); \ 266 } \ 267} while (0) 268 269#undef ASM_OUTPUT_SOURCE_LINE 270#define ASM_OUTPUT_SOURCE_LINE(file, line) \ 271do { \ 272 static int sym_lineno = 1; \ 273 if (TARGET_ELF) { \ 274 fprintf (file, ".stabn 68,0,%d,.LM%d-", line, sym_lineno); \ 275 assemble_name (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\ 276 fprintf (file, "\n.LM%d:\n", sym_lineno); \ 277 sym_lineno += 1; \ 278 } else { \ 279 fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno); \ 280 } \ 281} while (0) 282 283#undef DBX_FUNCTION_FIRST 284#define DBX_CHECK_FUNCTION_FIRST TARGET_ELF 285 286/* stabs-in-elf has offsets relative to function beginning */ 287#undef DBX_OUTPUT_LBRAC 288#define DBX_OUTPUT_LBRAC(file,name) \ 289do { \ 290 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \ 291 assemble_name (asmfile, buf); \ 292 if (TARGET_ELF) { \ 293 fputc ('-', asmfile); \ 294 assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ 295 } \ 296 fprintf (asmfile, "\n"); \ 297} while (0) 298 299#undef DBX_OUTPUT_RBRAC 300#define DBX_OUTPUT_RBRAC(file,name) \ 301do { \ 302 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \ 303 assemble_name (asmfile, buf); \ 304 if (TARGET_ELF) { \ 305 fputc ('-', asmfile); \ 306 assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ 307 } \ 308 fprintf (asmfile, "\n"); \ 309} while (0) 310 311 312/* Define macro used to output shift-double opcodes when the shift 313 count is in %cl. Some assemblers require %cl as an argument; 314 some don't. 315 316 *OLD* GAS requires the %cl argument, so override i386/unix.h. */ 317 318#undef AS3_SHIFT_DOUBLE 319#define AS3_SHIFT_DOUBLE(a,b,c,d) AS3 (a,b,c,d) 320 321/* Indicate that jump tables go in the text section. This is 322 necessary when compiling PIC code. */ 323#define JUMP_TABLES_IN_TEXT_SECTION 324 325/* override the exception table positioning */ 326#define EXCEPTION_SECTION_FUNCTION \ 327do { \ 328 if (TARGET_ELF) { \ 329 named_section (NULL_TREE, ".gcc_except_table"); \ 330 } else { \ 331 if (flag_pic) \ 332 data_section (); \ 333 else \ 334 readonly_data_section (); \ 335 } \ 336} while (0); 337 338/* supply our own hook for calling __main() from main() */ 339#define GEN_CALL__MAIN \ 340 do { \ 341 if (!(TARGET_ELF)) \ 342 emit_library_call (gen_rtx (SYMBOL_REF, Pmode, NAME__MAIN), 0, \ 343 VOIDmode, 0); \ 344 } while (0) 345 346/* Map i386 registers to the numbers dwarf expects. Of course this is different 347 from what stabs expects. */ 348 349#undef DWARF_DBX_REGISTER_NUMBER 350#define DWARF_DBX_REGISTER_NUMBER(n) \ 351((n) == 0 ? 0 \ 352 : (n) == 1 ? 2 \ 353 : (n) == 2 ? 1 \ 354 : (n) == 3 ? 3 \ 355 : (n) == 4 ? 6 \ 356 : (n) == 5 ? 7 \ 357 : (n) == 6 ? 5 \ 358 : (n) == 7 ? 4 \ 359 : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n)+3 \ 360 : (-1)) 361 362/* Now what stabs expects in the register. */ 363#define STABS_DBX_REGISTER_NUMBER(n) \ 364((n) == 0 ? 0 : \ 365 (n) == 1 ? 2 : \ 366 (n) == 2 ? 1 : \ 367 (n) == 3 ? 3 : \ 368 (n) == 4 ? 6 : \ 369 (n) == 5 ? 7 : \ 370 (n) == 6 ? 4 : \ 371 (n) == 7 ? 5 : \ 372 (n) + 4) 373 374#undef DBX_REGISTER_NUMBER 375#define DBX_REGISTER_NUMBER(n) ((write_symbols == DWARF_DEBUG) \ 376 ? DWARF_DBX_REGISTER_NUMBER(n) \ 377 : STABS_DBX_REGISTER_NUMBER(n)) 378 379/* Tell final.c that we don't need a label passed to mcount. */ 380#define NO_PROFILE_DATA 381 382/* Output assembler code to FILE to increment profiler label # LABELNO 383 for profiling a function entry. */ 384/* Redefine this to not pass an unused label in %edx. */ 385 386#undef FUNCTION_PROFILER 387#define FUNCTION_PROFILER(FILE, LABELNO) \ 388{ \ 389 if (flag_pic) \ 390 fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \ 391 else \ 392 fprintf (FILE, "\tcall mcount\n"); \ 393} 394 395#define FUNCTION_PROFILER_EPILOGUE(FILE) \ 396{ \ 397 if (TARGET_PROFILER_EPILOGUE) \ 398 { \ 399 if (flag_pic) \ 400 fprintf (FILE, "\tcall *mexitcount@GOT(%%ebx)\n"); \ 401 else \ 402 fprintf (FILE, "\tcall mexitcount\n"); \ 403 } \ 404} 405 406#undef SIZE_TYPE 407#define SIZE_TYPE "unsigned int" 408 409#undef PTRDIFF_TYPE 410#define PTRDIFF_TYPE "int" 411 412#undef WCHAR_TYPE 413#define WCHAR_TYPE "int" 414 415#define WCHAR_UNSIGNED 0 416 417#undef WCHAR_TYPE_SIZE 418#define WCHAR_TYPE_SIZE BITS_PER_WORD 419 420/* FREEBSD_NATIVE is defined when gcc is integrated into the FreeBSD 421 source tree so it can be configured appropriately without using 422 the GNU configure/build mechanism. */ 423 424#ifdef FREEBSD_NATIVE 425 426/* Look for the include files in the system-defined places. */ 427 428#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++" 429 430#define GCC_INCLUDE_DIR "/usr/include" 431 432/* FreeBSD has GCC_INCLUDE_DIR first. */ 433#define INCLUDE_DEFAULTS \ 434 { \ 435 { GCC_INCLUDE_DIR, 0, 0 }, \ 436 { GPLUSPLUS_INCLUDE_DIR, 1, 1 }, \ 437 { 0, 0, 0 } \ 438 } 439 440/* Under FreeBSD, the normal location of the compiler back ends is the 441 /usr/libexec directory. */ 442 443#define STANDARD_EXEC_PREFIX "/usr/libexec/" 444 445/* Under FreeBSD, the normal location of the various *crt*.o files is the 446 /usr/lib directory. */ 447 448#define STANDARD_STARTFILE_PREFIX "/usr/lib/" 449 450/* On FreeBSD, gcc is called 'cc' */ 451#define GCC_NAME "cc" 452 453/* FreeBSD is 4.4BSD derived */ 454#define bsd4_4 455 456#endif /* FREEBSD_NATIVE */ 457 458#undef CPP_PREDEFINES 459#define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__=3 -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)" 460 461#undef CPP_SPEC 462#if TARGET_CPU_DEFAULT == 2 463#define CPP_SPEC "\ 464%{!maout: -D__ELF__} \ 465%{munderscores: -D__UNDERSCORES__} \ 466%{maout: %{!mno-underscores: -D__UNDERSCORES__}} \ 467%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{!m386:-D__i486__}" 468#else 469#define CPP_SPEC "\ 470%{!maout: -D__ELF__} \ 471%{munderscores: -D__UNDERSCORES__} \ 472%{maout: %{!mno-underscores: -D__UNDERSCORES__}} \ 473%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{m486:-D__i486__}" 474#endif 475 476#undef CC1_SPEC 477#define CC1_SPEC "\ 478%{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \ 479%{maout: %{!mno-underscores: %{!munderscores: -munderscores }}}" 480 481#undef ASM_SPEC 482#define ASM_SPEC "%{v*: -v} %{maout: %{fpic:-k} %{fPIC:-k}}" 483 484/* Like the default, except no -lg, and no -p. */ 485#undef LIB_SPEC 486#define LIB_SPEC "%{!shared:%{!pg:%{!pthread:%{!kthread:-lc}%{kthread:-lpthread -lc}}%{pthread:-lc_r}}%{pg:%{!pthread:%{!kthread:-lc_r}%{kthread:-lpthread_p -lc_p}}%{pthread:-lc_r_p}}}" 487 488/* Let gcc locate this for us according to the -m rules */ 489#undef LIBGCC_SPEC 490#define LIBGCC_SPEC "%{!shared:libgcc.a%s}" 491 492/* Provide a LINK_SPEC appropriate for FreeBSD. Here we provide support 493 for the special GCC options -static and -shared, which allow us to 494 link things in one of these three modes by applying the appropriate 495 combinations of options at link-time. We like to support here for 496 as many of the other GNU linker options as possible. But I don't 497 have the time to search for those flags. I am sure how to add 498 support for -soname shared_object_name. H.J. 499 500 When the -shared link option is used a final link is not being 501 done. */ 502 503#undef LINK_SPEC 504#define LINK_SPEC "\ 505 %{p:%e`-p' not supported; use `-pg' and gprof(1)} \ 506 %{maout: %{shared:-Bshareable} \ 507 %{!shared:%{!nostdlib:%{!r:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} \ 508 %{pg:-Bstatic} %{Z}} \ 509 %{assert*} %{R*}} \ 510 %{!maout: \ 511 -m elf_i386 \ 512 %{Wl,*:%*} \ 513 %{assert*} %{R*} %{rpath*} %{defsym*} \ 514 %{shared:-Bshared %{h*} %{soname*}} \ 515 %{symbolic:-Bsymbolic} \ 516 %{!shared: \ 517 %{!static: \ 518 %{rdynamic: -export-dynamic} \ 519 %{!dynamic-linker: -dynamic-linker /usr/libexec/ld-elf.so.1}} \ 520 %{static:-Bstatic}}}" 521 522/* Get perform_* macros to build libgcc.a. */ 523#include "i386/perform.h" 524 525#undef STARTFILE_SPEC 526#define STARTFILE_SPEC "\ 527 %{maout: %{shared:c++rt0.o%s} \ 528 %{!shared:%{pg:gcrt0.o%s}%{!pg:%{static:scrt0.o%s}%{!static:crt0.o%s}}}} \ 529 %{!maout: %{!shared: \ 530 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \ 531 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" 532 533#undef ENDFILE_SPEC 534#define ENDFILE_SPEC \ 535 "%{!maout: %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s}" 536 537/* This goes away when the math emulator is fixed. */ 538#undef TARGET_DEFAULT 539#define TARGET_DEFAULT (MASK_NO_FANCY_MATH_387 | 0301) 540 541#define HAVE_ATEXIT 542#define HAVE_PUTENV 543 544/* to assist building libgcc2.c */ 545#ifndef __ELF__ 546#undef OBJECT_FORMAT_ELF 547#endif 548