freebsd.h revision 34284
134229Speter/* Definitions for Intel 386 running FreeBSD with either a.out or ELF format 234229Speter Copyright (C) 1994, 1995 Free Software Foundation, Inc. 334229Speter Contributed by Eric Youngdale. 434229Speter Modified for stabs-in-ELF by H.J. Lu. 534229Speter Adapted from Linux version by John Polstra. 634229Speter Added support for generating "old a.out gas" on the fly by Peter Wemm. 718334Speter 818334SpeterThis file is part of GNU CC. 918334Speter 1018334SpeterGNU CC is free software; you can redistribute it and/or modify 1118334Speterit under the terms of the GNU General Public License as published by 1218334Speterthe Free Software Foundation; either version 2, or (at your option) 1318334Speterany later version. 1418334Speter 1518334SpeterGNU CC is distributed in the hope that it will be useful, 1618334Speterbut WITHOUT ANY WARRANTY; without even the implied warranty of 1718334SpeterMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1818334SpeterGNU General Public License for more details. 1918334Speter 2018334SpeterYou should have received a copy of the GNU General Public License 2118334Speteralong with GNU CC; see the file COPYING. If not, write to 2218334Speterthe Free Software Foundation, 59 Temple Place - Suite 330, 2318334SpeterBoston, MA 02111-1307, USA. */ 2418334Speter 2534229Speter/* A lie, I guess, but the general idea behind FreeBSD/ELF is that we are 2634229Speter supposed to be outputting something that will assemble under SVr4. 2734229Speter This gets us pretty close. */ 2834229Speter#include <i386/i386.h> /* Base i386 target machine definitions */ 2934229Speter#include <i386/att.h> /* Use the i386 AT&T assembler syntax */ 3034229Speter#include <linux.h> /* some common stuff */ 3118334Speter 3218334Speter/* Don't assume anything about the header files. */ 3318334Speter#define NO_IMPLICIT_EXTERN_C 3418334Speter 3534229Speter/* This defines which switch letters take arguments. On svr4, most of 3634229Speter the normal cases (defined in gcc.c) apply, and we also have -h* and 3734229Speter -z* options (for the linker). We have a slightly different mix. We 3834229Speter have -R (alias --rpath), no -z, --soname (-h), --assert etc. */ 3918334Speter 4034229Speter#undef SWITCH_TAKES_ARG 4134229Speter#define SWITCH_TAKES_ARG(CHAR) \ 4234229Speter ( (CHAR) == 'D' \ 4334229Speter || (CHAR) == 'U' \ 4434229Speter || (CHAR) == 'o' \ 4534229Speter || (CHAR) == 'e' \ 4634229Speter || (CHAR) == 'T' \ 4734229Speter || (CHAR) == 'u' \ 4834229Speter || (CHAR) == 'I' \ 4934229Speter || (CHAR) == 'm' \ 5034229Speter || (CHAR) == 'L' \ 5134229Speter || (CHAR) == 'A' \ 5234229Speter || (CHAR) == 'h' \ 5334229Speter || (CHAR) == 'z' /* ignored by ld */ \ 5434229Speter || (CHAR) == 'R') 5518334Speter 5634229Speter#undef WORD_SWITCH_TAKES_ARG 5734229Speter#define WORD_SWITCH_TAKES_ARG(STR) \ 5834229Speter (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ 5934229Speter || !strcmp (STR, "rpath") || !strcmp (STR, "rpath-link") \ 6034229Speter || !strcmp (STR, "soname") || !strcmp (STR, "defsym") \ 6134229Speter || !strcmp (STR, "assert") || !strcmp (STR, "dynamic-linker")) 6218349Speter 6334229Speter#undef TARGET_VERSION 6434229Speter#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD)"); 6518349Speter 6634229Speter#define MASK_PROFILER_EPILOGUE 010000000000 6734229Speter#define MASK_AOUT 004000000000 /* a.out not elf */ 6834229Speter#define MASK_UNDERSCORES 002000000000 /* use leading _ */ 6918349Speter 7034229Speter#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE) 7134229Speter#define TARGET_AOUT (target_flags & MASK_AOUT) 7234229Speter#define TARGET_ELF ((target_flags & MASK_AOUT) == 0) 7334229Speter#define TARGET_UNDERSCORES ((target_flags & MASK_UNDERSCORES) != 0) 7418349Speter 7534229Speter#undef SUBTARGET_SWITCHES 7634229Speter#define SUBTARGET_SWITCHES \ 7734229Speter { "profiler-epilogue", MASK_PROFILER_EPILOGUE}, \ 7834229Speter { "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE}, \ 7934229Speter { "aout", MASK_AOUT}, \ 8034229Speter { "no-aout", -MASK_AOUT}, \ 8134229Speter { "underscores", MASK_UNDERSCORES}, \ 8234229Speter { "no-underscores", -MASK_UNDERSCORES}, 8318349Speter 8434229Speter/* The svr4 ABI for the i386 says that records and unions are returned 8534229Speter in memory. */ 8634229Speter/* On FreeBSD, we do not. */ 8734229Speter#undef DEFAULT_PCC_STRUCT_RETURN 8834229Speter#define DEFAULT_PCC_STRUCT_RETURN 0 8918349Speter 9034229Speter#define SUPPORTS_WEAK TARGET_ELF 9118349Speter 9234229Speter/* Prefix for internally generated assembler labels. If we aren't using 9334229Speter underscores, we are using prefix `.'s to identify labels that should 9434229Speter be ignored, as in `i386/gas.h' --karl@cs.umb.edu */ 9534229Speter#undef LPREFIX 9634229Speter#define LPREFIX ((TARGET_UNDERSCORES) ? "L" : ".L") 9718349Speter 9834229Speter/* Override the default comment-starter of "/". */ 9934229Speter#undef ASM_COMMENT_START 10034229Speter#define ASM_COMMENT_START "#" 10118349Speter 10234229Speter#undef COMMENT_BEGIN 10334229Speter#define COMMENT_BEGIN "#" 10418349Speter 10534229Speter#undef ASM_APP_ON 10634229Speter#define ASM_APP_ON "#APP\n" 10718349Speter 10834229Speter#undef ASM_APP_OFF 10934229Speter#define ASM_APP_OFF "#NO_APP\n" 11018349Speter 11134229Speter/* Output at beginning of assembler file. */ 11234229Speter/* The .file command should always begin the output. */ 11318349Speter 11434229Speter#undef ASM_FILE_START 11534229Speter#define ASM_FILE_START(FILE) \ 11634229Speter do { \ 11734229Speter output_file_directive (FILE, main_input_filename); \ 11834229Speter if (TARGET_ELF) \ 11934229Speter fprintf (FILE, "\t.version\t\"01.01\"\n"); \ 12034229Speter } while (0) 12118349Speter 12234229Speter/* This is how to store into the string BUF 12334229Speter the symbol_ref name of an internal numbered label where 12434229Speter PREFIX is the class of label and NUM is the number within the class. 12534229Speter This is suitable for output with `assemble_name'. */ 12634229Speter#undef ASM_GENERATE_INTERNAL_LABEL 12734229Speter#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \ 12834229Speter sprintf ((BUF), "*%s%s%d", (TARGET_UNDERSCORES) ? "" : ".", \ 12934229Speter (PREFIX), (NUMBER)) 13018349Speter 13134229Speter/* This is how to output an internal numbered label where 13234229Speter PREFIX is the class of label and NUM is the number within the class. */ 13334229Speter#undef ASM_OUTPUT_INTERNAL_LABEL 13434229Speter#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ 13534229Speter fprintf (FILE, "%s%s%d:\n", (TARGET_UNDERSCORES) ? "" : ".", \ 13634229Speter PREFIX, NUM) 13718334Speter 13834229Speter/* This is how to output a reference to a user-level label named NAME. */ 13934229Speter#undef ASM_OUTPUT_LABELREF 14034229Speter#define ASM_OUTPUT_LABELREF(FILE,NAME) \ 14134229Speter fprintf (FILE, "%s%s", (TARGET_UNDERSCORES) ? "_" : "", NAME) 14218349Speter 14318334Speter 14434229Speter/* This is how to output an element of a case-vector that is relative. 14534229Speter This is only used for PIC code. See comments by the `casesi' insn in 14634229Speter i386.md for an explanation of the expression this outputs. */ 14734229Speter#undef ASM_OUTPUT_ADDR_DIFF_ELT 14834229Speter#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ 14934229Speter fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE) 15018349Speter 15134229Speter#undef ASM_OUTPUT_ALIGN 15234229Speter#define ASM_OUTPUT_ALIGN(FILE,LOG) \ 15334229Speter if ((LOG)!=0) fprintf ((FILE), "\t.p2align %d\n", (LOG)) 15418349Speter 15534229Speter/* Align labels, etc. at 4-byte boundaries. 15634229Speter For the 486, align to 16-byte boundary for sake of cache. */ 15734229Speter#undef ASM_OUTPUT_ALIGN_CODE 15834229Speter#define ASM_OUTPUT_ALIGN_CODE(FILE) \ 15934229Speter fprintf ((FILE), "\t.p2align %d,0x90\n", i386_align_jumps) 16018349Speter 16134229Speter/* Align start of loop at 4-byte boundary. */ 16234229Speter#undef ASM_OUTPUT_LOOP_ALIGN 16334229Speter#define ASM_OUTPUT_LOOP_ALIGN(FILE) \ 16434229Speter fprintf ((FILE), "\t.p2align %d,0x90\n", i386_align_loops) 16518334Speter 16618334Speter 16734229Speter/* conditionalize the use of ".section rodata" on elf mode - otherwise .text */ 16834229Speter#undef USE_CONST_SECTION 16934229Speter#define USE_CONST_SECTION TARGET_ELF 17018334Speter 17134229Speter/* A C statement (sans semicolon) to output an element in the table of 17234229Speter global constructors. */ 17334229Speter#undef ASM_OUTPUT_CONSTRUCTOR 17434229Speter#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ 17534229Speter do { \ 17634229Speter if (TARGET_ELF) { \ 17734229Speter ctors_section (); \ 17834229Speter fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ 17934229Speter assemble_name (FILE, NAME); \ 18034229Speter fprintf (FILE, "\n"); \ 18134229Speter } else { \ 18234229Speter fprintf (asm_out_file, "%s \"%s__CTOR_LIST__\",22,0,0,", ASM_STABS_OP, \ 18334229Speter (TARGET_UNDERSCORES) ? "_" : ""); \ 18434229Speter assemble_name (asm_out_file, name); \ 18534229Speter fputc ('\n', asm_out_file); \ 18634229Speter } \ 18734229Speter } while (0) 18818334Speter 18934229Speter/* A C statement (sans semicolon) to output an element in the table of 19034229Speter global destructors. */ 19134229Speter#undef ASM_OUTPUT_DESTRUCTOR 19234229Speter#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ 19334229Speter do { \ 19434229Speter if (TARGET_ELF) { \ 19534229Speter dtors_section (); \ 19634229Speter fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ 19734229Speter assemble_name (FILE, NAME); \ 19834229Speter fprintf (FILE, "\n"); \ 19934229Speter } else { \ 20034229Speter fprintf (asm_out_file, "%s \"%s__DTOR_LIST__\",22,0,0,", ASM_STABS_OP, \ 20134229Speter (TARGET_UNDERSCORES) ? "_" : ""); \ 20234229Speter assemble_name (asm_out_file, name); \ 20334229Speter fputc ('\n', asm_out_file); \ 20434229Speter } \ 20534229Speter } while (0) 20618334Speter 20734229Speter/* This says how to output assembler code to declare an 20834229Speter uninitialized internal linkage data object. Under SVR4, 20934229Speter the linker seems to want the alignment of data objects 21034229Speter to depend on their types. We do exactly that here. */ 21118334Speter 21234229Speter#undef ASM_OUTPUT_ALIGNED_LOCAL 21334229Speter#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ 21434229Speterdo { \ 21534229Speter if (TARGET_ELF) { \ 21634229Speter fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \ 21734229Speter assemble_name ((FILE), (NAME)); \ 21834229Speter fprintf ((FILE), "\n"); \ 21934229Speter ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ 22034229Speter } else { \ 22134229Speter int rounded = (SIZE); \ 22234229Speter if (rounded == 0) rounded = 1; \ 22334229Speter rounded += (BIGGEST_ALIGNMENT / BITS_PER_UNIT) - 1; \ 22434229Speter rounded = (rounded / (BIGGEST_ALIGNMENT / BITS_PER_UNIT) \ 22534229Speter * (BIGGEST_ALIGNMENT / BITS_PER_UNIT)); \ 22634229Speter fputs (".lcomm ", (FILE)); \ 22734229Speter assemble_name ((FILE), (NAME)); \ 22834229Speter fprintf ((FILE), ",%u\n", (rounded)); \ 22934229Speter } \ 23034229Speter} while (0) 23118349Speter 23234229Speter#undef ASM_OUTPUT_ALIGNED_COMMON 23334229Speter#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ 23434229Speterdo { \ 23534229Speter if (TARGET_ELF) { \ 23634229Speter fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \ 23734229Speter assemble_name ((FILE), (NAME)); \ 23834229Speter fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ 23934229Speter } else { \ 24034229Speter int rounded = (SIZE); \ 24134229Speter if (rounded == 0) rounded = 1; \ 24234229Speter rounded += (BIGGEST_ALIGNMENT / BITS_PER_UNIT) - 1; \ 24334229Speter rounded = (rounded / (BIGGEST_ALIGNMENT / BITS_PER_UNIT) \ 24434229Speter * (BIGGEST_ALIGNMENT / BITS_PER_UNIT)); \ 24534229Speter fputs (".comm ", (FILE)); \ 24634229Speter assemble_name ((FILE), (NAME)); \ 24734229Speter fprintf ((FILE), ",%u\n", (rounded)); \ 24834229Speter } \ 24934229Speter} while (0) 25018349Speter 25134229Speter/* Turn off svr4.h version, it chokes the old gas. The old layout 25234229Speter works fine under new gas anyway. */ 25334229Speter#undef ASM_OUTPUT_ASCII 25418334Speter 25534229Speter/* How to output some space */ 25634229Speter#undef ASM_OUTPUT_SKIP 25734229Speter#define ASM_OUTPUT_SKIP(FILE,SIZE) \ 25834229Speterdo { \ 25934229Speter if (TARGET_ELF) { \ 26034229Speter fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE)); \ 26134229Speter } else { \ 26234229Speter fprintf (FILE, "\t.space %u\n", (SIZE)); \ 26334229Speter } \ 26434229Speter} while (0) 26518334Speter 26634229Speter#undef ASM_OUTPUT_SOURCE_LINE 26734229Speter#define ASM_OUTPUT_SOURCE_LINE(file, line) \ 26834229Speterdo { \ 26934229Speter static int sym_lineno = 1; \ 27034229Speter if (TARGET_ELF) { \ 27134229Speter fprintf (file, ".stabn 68,0,%d,.LM%d-", line, sym_lineno); \ 27234229Speter assemble_name (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\ 27334229Speter fprintf (file, "\n.LM%d:\n", sym_lineno); \ 27434229Speter sym_lineno += 1; \ 27534229Speter } else { \ 27634229Speter fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno); \ 27734229Speter } \ 27834229Speter} while (0) 27918334Speter 28034284Speter/* in elf, the function stabs come first, before the relative offsets */ 28134269Speter#undef DBX_FUNCTION_FIRST 28234269Speter#define DBX_CHECK_FUNCTION_FIRST TARGET_ELF 28334269Speter 28434284Speter/* tag end of file in elf mode */ 28534284Speter#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END 28634284Speter#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \ 28734284Speterdo { \ 28834284Speter if (TARGET_ELF) { \ 28934284Speter fprintf (FILE, "\t.text\n\t.stabs \"\",%d,0,0,.Letext\n.Letext:\n", N_SO); \ 29034284Speter } \ 29134284Speter} while (0) 29234284Speter 29334229Speter/* stabs-in-elf has offsets relative to function beginning */ 29434229Speter#undef DBX_OUTPUT_LBRAC 29534229Speter#define DBX_OUTPUT_LBRAC(file,name) \ 29634229Speterdo { \ 29734229Speter fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \ 29834229Speter assemble_name (asmfile, buf); \ 29934229Speter if (TARGET_ELF) { \ 30034229Speter fputc ('-', asmfile); \ 30134229Speter assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ 30234229Speter } \ 30334229Speter fprintf (asmfile, "\n"); \ 30434229Speter} while (0) 30518334Speter 30634229Speter#undef DBX_OUTPUT_RBRAC 30734229Speter#define DBX_OUTPUT_RBRAC(file,name) \ 30834229Speterdo { \ 30934229Speter fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \ 31034229Speter assemble_name (asmfile, buf); \ 31134229Speter if (TARGET_ELF) { \ 31234229Speter fputc ('-', asmfile); \ 31334229Speter assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ 31434229Speter } \ 31534229Speter fprintf (asmfile, "\n"); \ 31634229Speter} while (0) 31734229Speter 31834229Speter 31934229Speter/* Define macro used to output shift-double opcodes when the shift 32034229Speter count is in %cl. Some assemblers require %cl as an argument; 32134229Speter some don't. 32234229Speter 32334229Speter *OLD* GAS requires the %cl argument, so override i386/unix.h. */ 32434229Speter 32534229Speter#undef AS3_SHIFT_DOUBLE 32634229Speter#define AS3_SHIFT_DOUBLE(a,b,c,d) AS3 (a,b,c,d) 32734229Speter 32818334Speter/* Indicate that jump tables go in the text section. This is 32918334Speter necessary when compiling PIC code. */ 33018334Speter#define JUMP_TABLES_IN_TEXT_SECTION 33118334Speter 33234229Speter/* override the exception table positioning */ 33334229Speter#define EXCEPTION_SECTION_FUNCTION \ 33434229Speterdo { \ 33534229Speter if (TARGET_ELF) { \ 33634229Speter named_section (NULL_TREE, ".gcc_except_table"); \ 33734229Speter } else { \ 33834229Speter if (flag_pic) \ 33934229Speter data_section (); \ 34034229Speter else \ 34134229Speter readonly_data_section (); \ 34234229Speter } \ 34334229Speter} while (0); 34418334Speter 34534229Speter/* supply our own hook for calling __main() from main() */ 34634229Speter#define GEN_CALL__MAIN \ 34734229Speter do { \ 34834229Speter if (!(TARGET_ELF)) \ 34934229Speter emit_library_call (gen_rtx (SYMBOL_REF, Pmode, NAME__MAIN), 0, \ 35034229Speter VOIDmode, 0); \ 35134229Speter } while (0) 35234229Speter 35334229Speter/* Map i386 registers to the numbers dwarf expects. Of course this is different 35434229Speter from what stabs expects. */ 35534229Speter 35634229Speter#undef DWARF_DBX_REGISTER_NUMBER 35734229Speter#define DWARF_DBX_REGISTER_NUMBER(n) \ 35834229Speter((n) == 0 ? 0 \ 35934229Speter : (n) == 1 ? 2 \ 36034229Speter : (n) == 2 ? 1 \ 36134229Speter : (n) == 3 ? 3 \ 36234229Speter : (n) == 4 ? 6 \ 36334229Speter : (n) == 5 ? 7 \ 36434229Speter : (n) == 6 ? 5 \ 36534229Speter : (n) == 7 ? 4 \ 36634229Speter : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n)+3 \ 36734229Speter : (-1)) 36834229Speter 36934229Speter/* Now what stabs expects in the register. */ 37034229Speter#define STABS_DBX_REGISTER_NUMBER(n) \ 37134229Speter((n) == 0 ? 0 : \ 37234229Speter (n) == 1 ? 2 : \ 37334229Speter (n) == 2 ? 1 : \ 37434229Speter (n) == 3 ? 3 : \ 37534229Speter (n) == 4 ? 6 : \ 37634229Speter (n) == 5 ? 7 : \ 37734229Speter (n) == 6 ? 4 : \ 37834229Speter (n) == 7 ? 5 : \ 37934229Speter (n) + 4) 38034229Speter 38134229Speter#undef DBX_REGISTER_NUMBER 38234229Speter#define DBX_REGISTER_NUMBER(n) ((write_symbols == DWARF_DEBUG) \ 38334229Speter ? DWARF_DBX_REGISTER_NUMBER(n) \ 38434229Speter : STABS_DBX_REGISTER_NUMBER(n)) 38534229Speter 38618349Speter/* Tell final.c that we don't need a label passed to mcount. */ 38718349Speter#define NO_PROFILE_DATA 38818349Speter 38934229Speter/* Output assembler code to FILE to increment profiler label # LABELNO 39034229Speter for profiling a function entry. */ 39118349Speter/* Redefine this to not pass an unused label in %edx. */ 39218349Speter 39318334Speter#undef FUNCTION_PROFILER 39418334Speter#define FUNCTION_PROFILER(FILE, LABELNO) \ 39518334Speter{ \ 39618334Speter if (flag_pic) \ 39718349Speter fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \ 39818334Speter else \ 39918349Speter fprintf (FILE, "\tcall mcount\n"); \ 40018349Speter} 40118349Speter 40218349Speter#define FUNCTION_PROFILER_EPILOGUE(FILE) \ 40318349Speter{ \ 40418349Speter if (TARGET_PROFILER_EPILOGUE) \ 40518334Speter { \ 40618349Speter if (flag_pic) \ 40718349Speter fprintf (FILE, "\tcall *mexitcount@GOT(%%ebx)\n"); \ 40818349Speter else \ 40918349Speter fprintf (FILE, "\tcall mexitcount\n"); \ 41018334Speter } \ 41118334Speter} 41218334Speter 41334229Speter#undef SIZE_TYPE 41434229Speter#define SIZE_TYPE "unsigned int" 41534229Speter 41634229Speter#undef PTRDIFF_TYPE 41734229Speter#define PTRDIFF_TYPE "int" 41834229Speter 41934229Speter#undef WCHAR_TYPE 42034229Speter#define WCHAR_TYPE "int" 42134229Speter 42234229Speter#define WCHAR_UNSIGNED 0 42318349Speter 42434229Speter#undef WCHAR_TYPE_SIZE 42534229Speter#define WCHAR_TYPE_SIZE BITS_PER_WORD 42618334Speter 42734229Speter/* FREEBSD_NATIVE is defined when gcc is integrated into the FreeBSD 42834229Speter source tree so it can be configured appropriately without using 42934229Speter the GNU configure/build mechanism. */ 43018334Speter 43134229Speter#ifdef FREEBSD_NATIVE 43218349Speter 43334229Speter/* Look for the include files in the system-defined places. */ 43418334Speter 43534229Speter#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++" 43618334Speter 43734229Speter#define GCC_INCLUDE_DIR "/usr/include" 43818334Speter 43934229Speter/* FreeBSD has GCC_INCLUDE_DIR first. */ 44034229Speter#define INCLUDE_DEFAULTS \ 44134229Speter { \ 44234229Speter { GCC_INCLUDE_DIR, 0, 0 }, \ 44334229Speter { GPLUSPLUS_INCLUDE_DIR, 1, 1 }, \ 44434229Speter { 0, 0, 0 } \ 44534229Speter } 44634229Speter 44734229Speter/* Under FreeBSD, the normal location of the compiler back ends is the 44834229Speter /usr/libexec directory. */ 44934229Speter 45034229Speter#define STANDARD_EXEC_PREFIX "/usr/libexec/" 45134229Speter 45234229Speter/* Under FreeBSD, the normal location of the various *crt*.o files is the 45334229Speter /usr/lib directory. */ 45434229Speter 45534229Speter#define STANDARD_STARTFILE_PREFIX "/usr/lib/" 45634229Speter 45734229Speter/* On FreeBSD, gcc is called 'cc' */ 45834229Speter#define GCC_NAME "cc" 45934229Speter 46034229Speter/* FreeBSD is 4.4BSD derived */ 46134229Speter#define bsd4_4 46234229Speter 46334229Speter#endif /* FREEBSD_NATIVE */ 46434229Speter 46534229Speter#undef CPP_PREDEFINES 46634229Speter#define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__=3 -Asystem(unix) -Asystem(FreeBSD) -Acpu(i386) -Amachine(i386)" 46734229Speter 46834229Speter#undef CPP_SPEC 46934229Speter#if TARGET_CPU_DEFAULT == 2 47034229Speter#define CPP_SPEC "\ 47134229Speter%{!maout: -D__ELF__} \ 47234229Speter%{munderscores: -D__UNDERSCORES__} \ 47334229Speter%{maout: %{!mno-underscores: -D__UNDERSCORES__}} \ 47434229Speter%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{!m386:-D__i486__}" 47534229Speter#else 47634229Speter#define CPP_SPEC "\ 47734229Speter%{!maout: -D__ELF__} \ 47834229Speter%{munderscores: -D__UNDERSCORES__} \ 47934229Speter%{maout: %{!mno-underscores: -D__UNDERSCORES__}} \ 48034229Speter%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{m486:-D__i486__}" 48118334Speter#endif 48218334Speter 48334229Speter#undef CC1_SPEC 48434229Speter#define CC1_SPEC "\ 48534229Speter%{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \ 48634229Speter%{maout: %{!mno-underscores: %{!munderscores: -munderscores }}}" 48718334Speter 48834229Speter#undef ASM_SPEC 48934229Speter#define ASM_SPEC "%{v*: -v} %{maout: %{fpic:-k} %{fPIC:-k}}" 49018334Speter 49134229Speter/* Like the default, except no -lg, and no -p. */ 49234229Speter#undef LIB_SPEC 49334230Speter#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}}}" 49418334Speter 49534229Speter/* Let gcc locate this for us according to the -m rules */ 49634229Speter#undef LIBGCC_SPEC 49734229Speter#define LIBGCC_SPEC "%{!shared:libgcc.a%s}" 49818334Speter 49934229Speter/* Provide a LINK_SPEC appropriate for FreeBSD. Here we provide support 50034229Speter for the special GCC options -static and -shared, which allow us to 50134229Speter link things in one of these three modes by applying the appropriate 50234229Speter combinations of options at link-time. We like to support here for 50334229Speter as many of the other GNU linker options as possible. But I don't 50434229Speter have the time to search for those flags. I am sure how to add 50534229Speter support for -soname shared_object_name. H.J. 50618334Speter 50734229Speter When the -shared link option is used a final link is not being 50834229Speter done. */ 50918334Speter 51034229Speter#undef LINK_SPEC 51134229Speter#define LINK_SPEC "\ 51234229Speter %{p:%e`-p' not supported; use `-pg' and gprof(1)} \ 51334229Speter %{maout: %{shared:-Bshareable} \ 51434229Speter %{!shared:%{!nostdlib:%{!r:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} \ 51534229Speter %{pg:-Bstatic} %{Z}} \ 51634229Speter %{assert*} %{R*}} \ 51734229Speter %{!maout: \ 51834229Speter -m elf_i386 \ 51934229Speter %{Wl,*:%*} \ 52034229Speter %{assert*} %{R*} %{rpath*} %{defsym*} \ 52134229Speter %{shared:-Bshared %{h*} %{soname*}} \ 52234229Speter %{symbolic:-Bsymbolic} \ 52334229Speter %{!shared: \ 52434229Speter %{!static: \ 52534229Speter %{rdynamic: -export-dynamic} \ 52634229Speter %{!dynamic-linker: -dynamic-linker /usr/libexec/ld-elf.so.1}} \ 52734229Speter %{static:-Bstatic}}}" 52818334Speter 52934229Speter/* Get perform_* macros to build libgcc.a. */ 53034229Speter#include "i386/perform.h" 53118334Speter 53234229Speter#undef STARTFILE_SPEC 53334229Speter#define STARTFILE_SPEC "\ 53434229Speter %{maout: %{shared:c++rt0.o%s} \ 53534229Speter %{!shared:%{pg:gcrt0.o%s}%{!pg:%{static:scrt0.o%s}%{!static:crt0.o%s}}}} \ 53634229Speter %{!maout: %{!shared: \ 53734229Speter %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \ 53834229Speter crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" 53918334Speter 54034229Speter#undef ENDFILE_SPEC 54134229Speter#define ENDFILE_SPEC \ 54234229Speter "%{!maout: %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s}" 54334229Speter 54434229Speter/* This goes away when the math emulator is fixed. */ 54534229Speter#undef TARGET_DEFAULT 54634229Speter#define TARGET_DEFAULT (MASK_NO_FANCY_MATH_387 | 0301) 54734229Speter 54834229Speter#define HAVE_ATEXIT 54934229Speter#define HAVE_PUTENV 55034229Speter 55134229Speter/* to assist building libgcc2.c */ 55234229Speter#ifndef __ELF__ 55334229Speter#undef OBJECT_FORMAT_ELF 55434229Speter#endif 555