freebsd.h revision 45940
1/* $Id: freebsd.h,v 1.7 1999/04/14 00:25:45 obrien Exp $ */ 2/* Base configuration file for all FreeBSD targets. 3 Copyright (C) 1999 Free Software Foundation, Inc. 4 5This file is part of GNU CC. 6 7GNU CC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU CC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU CC; see the file COPYING. If not, write to 19the Free Software Foundation, 59 Temple Place - Suite 330, 20Boston, MA 02111-1307, USA. */ 21 22/* Common FreeBSD configuration. 23 All FreeBSD architectures should include this file, which will specify 24 their commonalities. 25 Adapted from /usr/src/contrib/gcc/config/i386/freebsd.h & 26 egcs/gcc/config/i386/freebsd-elf.h version by David O'Brien */ 27 28 29/* Don't assume anything about the header files. */ 30#undef NO_IMPLICIT_EXTERN_C 31#define NO_IMPLICIT_EXTERN_C 32 33/* This defines which switch letters take arguments. On svr4, most of 34 the normal cases (defined in gcc.c) apply, and we also have -h* and 35 -z* options (for the linker). We have a slightly different mix. We 36 have -R (alias --rpath), no -z, --soname (-h), --assert etc. */ 37 38#define FBSD_SWITCH_TAKES_ARG(CHAR) \ 39 ( (CHAR) == 'D' \ 40 || (CHAR) == 'U' \ 41 || (CHAR) == 'o' \ 42 || (CHAR) == 'e' \ 43 || (CHAR) == 'T' \ 44 || (CHAR) == 'u' \ 45 || (CHAR) == 'I' \ 46 || (CHAR) == 'm' \ 47 || (CHAR) == 'x' \ 48 || (CHAR) == 'L' \ 49 || (CHAR) == 'A' \ 50 || (CHAR) == 'V' \ 51 || (CHAR) == 'B' \ 52 || (CHAR) == 'b' \ 53 || (CHAR) == 'h' \ 54 || (CHAR) == 'z' /* ignored by ld */ \ 55 || (CHAR) == 'R') 56 57#define FBSD_WORD_SWITCH_TAKES_ARG(STR) \ 58 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ 59 || !strcmp (STR, "rpath") || !strcmp (STR, "rpath-link") \ 60 || !strcmp (STR, "soname") || !strcmp (STR, "defsym") \ 61 || !strcmp (STR, "assert") || !strcmp (STR, "dynamic-linker")) 62 63/* Place spaces around this string. We depend on string splicing to produce 64 the final CPP_PREDEFINES value. */ 65#define CPP_FBSD_PREDEFINES " -Dunix -D__FreeBSD__=4 -D__FreeBSD_cc_version=400002 -Asystem(unix) -Asystem(FreeBSD) " 66 67/* Provide a LIB_SPEC appropriate for FreeBSD. Just select the appropriate 68 libc, depending on whether we're doing profiling. 69 (like the default, except no -lg, and no -p. */ 70#undef LIB_SPEC 71#define LIB_SPEC "%{!shared:%{!pg:%{!pthread:%{!kthread:-lc}%{kthread:-lpthread -lc}}%{pthread:-lc_r}}%{pg:%{!pthread:%{!kthread:-lc_p}%{kthread:-lpthread_p -lc_p}}%{pthread:-lc_r_p}}}" 72 73/* Let gcc locate this for us according to the -m rules */ 74#undef LIBGCC_SPEC 75#define LIBGCC_SPEC \ 76 "%{!shared:%{!pthread:%{!kthread:libgcc.a%s}}%{pthread|kthread:libgcc_r.a%s}}" 77 78 79/* Code generation parameters. */ 80 81/* Don't default to pcc-struct-return, because gcc is the only compiler, and 82 we want to retain compatibility with older gcc versions. 83 (even though the svr4 ABI for the i386 says that records and unions are 84 returned in memory) */ 85#undef DEFAULT_PCC_STRUCT_RETURN 86#define DEFAULT_PCC_STRUCT_RETURN 0 87 88/* Ensure we the configuration knows our system correctly so we can link with 89 libraries compiled with the native cc. */ 90#undef NO_DOLLAR_IN_LABEL 91 92/* Use more efficient ``thunks'' to implement C++ vtables. */ 93#undef DEFAULT_VTABLE_THUNKS 94#define DEFAULT_VTABLE_THUNKS 1 95 96 97/* Miscellaneous parameters. */ 98 99/* Tell libgcc2.c that FreeBSD targets support atexit(3). */ 100#define HAVE_ATEXIT 101 102 103/* FREEBSD_NATIVE is defined when gcc is integrated into the FreeBSD 104 source tree so it can be configured appropriately without using 105 the GNU configure/build mechanism. */ 106 107#ifdef FREEBSD_NATIVE 108 109/* Look for the include files in the system-defined places. */ 110 111#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++" 112#define GCC_INCLUDE_DIR "/usr/include" 113 114/* Now that GCC knows what the include path applies to, put the G++ one first. 115 C++ can now have include files that override the default C ones. */ 116#undef INCLUDE_DEFAULTS 117#define INCLUDE_DEFAULTS \ 118 { \ 119 { GPLUSPLUS_INCLUDE_DIR, "C++", 1, 1 }, \ 120 { GCC_INCLUDE_DIR, "GCC", 0, 0 }, \ 121 { 0, 0, 0, 0 } \ 122 } 123 124/* Under FreeBSD, the normal location of the compiler back ends is the 125 /usr/libexec directory. */ 126 127#undef STANDARD_EXEC_PREFIX 128#undef TOOLDIR_BASE_PREFIX 129#undef MD_EXEC_PREFIX 130 131#define STANDARD_EXEC_PREFIX "/usr/libexec/" 132#define TOOLDIR_BASE_PREFIX "/usr/libexec/" 133#define MD_EXEC_PREFIX "/usr/libexec/" 134 135/* Under FreeBSD, the normal location of the various *crt*.o files is the 136 /usr/lib directory. */ 137 138#undef STANDARD_STARTFILE_PREFIX 139#define STANDARD_STARTFILE_PREFIX "/usr/lib/" 140 141/* FreeBSD is 4.4BSD derived */ 142#define bsd4_4 143 144#endif /* FREEBSD_NATIVE */ 145