1 /* Base configuration file for all FreeBSD targets. 2 Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING. If not, write to 18 the Free Software Foundation, 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 /* Common FreeBSD configuration. 22 All FreeBSD architectures should include this file, which will specify 23 their commonalities. 24 Adapted from gcc/config/freebsd.h by 25 David O'Brien <obrien@FreeBSD.org> 26 Loren J. Rittle <ljrittle@acm.org>. */ 27 28 29 /* In case we need to know. */ 30 #define USING_CONFIG_FREEBSD_SPEC 1 31 32 /* This defines which switch letters take arguments. On FreeBSD, most of 33 the normal cases (defined in gcc.c) apply, and we also have -h* and 34 -z* options (for the linker) (coming from SVR4). 35 We also have -R (alias --rpath), no -z, --soname (-h), --assert etc. */ 36 37 #define FBSD_SWITCH_TAKES_ARG(CHAR) \ 38 (DEFAULT_SWITCH_TAKES_ARG (CHAR) \ 39 || (CHAR) == 'h' \ 40 || (CHAR) == 'z' /* ignored by ld */ \ 41 || (CHAR) == 'R') 42 43 /* This defines which multi-letter switches take arguments. */ 44 45 #define FBSD_WORD_SWITCH_TAKES_ARG(STR) \ 46 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ 47 || !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link") \ 48 || !strcmp ((STR), "soname") || !strcmp ((STR), "defsym") \ 49 || !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker")) 50 51 #define FBSD_TARGET_OS_CPP_BUILTINS() \ 52 do \ 53 { \ 54 if (FBSD_MAJOR == 6) \ 55 builtin_define ("__FreeBSD__=6"); \ 56 else if (FBSD_MAJOR == 5) \ 57 builtin_define ("__FreeBSD__=5"); \ 58 else if (FBSD_MAJOR == 4) \ 59 builtin_define ("__FreeBSD__=4"); \ 60 else if (FBSD_MAJOR == 3) \ 61 builtin_define ("__FreeBSD__=3"); \ 62 else \ 63 builtin_define ("__FreeBSD__"); \ 64 builtin_define_std ("unix"); \ 65 builtin_define ("__KPRINTF_ATTRIBUTE__"); \ 66 builtin_assert ("system=unix"); \ 67 builtin_assert ("system=bsd"); \ 68 builtin_assert ("system=FreeBSD"); \ 69 FBSD_TARGET_CPU_CPP_BUILTINS(); \ 70 } \ 71 while (0) 72 73 /* Define the default FreeBSD-specific per-CPU hook code. */ 74 #define FBSD_TARGET_CPU_CPP_BUILTINS() do {} while (0) 75 76 /* Provide a CPP_SPEC appropriate for FreeBSD. We just deal with the GCC 77 option `-posix', and PIC issues. */ 78 79 #define FBSD_CPP_SPEC " \ 80 %(cpp_cpu) \ 81 %{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} \ 82 %{posix:-D_POSIX_SOURCE}" 83 84 /* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add 85 the magical crtbegin.o file (see crtstuff.c) which provides part 86 of the support for getting C++ file-scope static object constructed 87 before entering `main'. */ 88 89 #define FBSD_STARTFILE_SPEC \ 90 "%{!shared: \ 91 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ 92 %{!p:%{profile:gcrt1.o%s} \ 93 %{!profile:crt1.o%s}}}} \ 94 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 95 96 /* Provide a ENDFILE_SPEC appropriate for FreeBSD. Here we tack on 97 the magical crtend.o file (see crtstuff.c) which provides part of 98 the support for getting C++ file-scope static object constructed 99 before entering `main', followed by a normal "finalizer" file, 100 `crtn.o'. */ 101 102 #define FBSD_ENDFILE_SPEC \ 103 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" 104 105 /* Provide a LIB_SPEC appropriate for FreeBSD as configured and as 106 required by the user-land thread model. Before __FreeBSD_version 107 500016, select the appropriate libc, depending on whether we're 108 doing profiling or need threads support. At __FreeBSD_version 109 500016 and later, when threads support is requested include both 110 -lc and -lc_r instead of only -lc_r. To make matters interesting, 111 we can't actually use __FreeBSD_version provided by <osreldate.h> 112 directly since it breaks cross-compiling. As a final twist, make 113 it a hard error if -pthread is provided on the command line and gcc 114 was configured with --disable-threads (this will help avoid bug 115 reports from users complaining about threading when they 116 misconfigured the gcc bootstrap but are later consulting FreeBSD 117 manual pages that refer to the mythical -pthread option). */ 118 119 /* Provide a LIB_SPEC appropriate for FreeBSD. Just select the appropriate 120 libc, depending on whether we're doing profiling or need threads support. 121 (simular to the default, except no -lg, and no -p). */ 122 123 #ifdef FBSD_NO_THREADS 124 #define FBSD_LIB_SPEC " \ 125 %{pthread: %eThe -pthread option is only supported on FreeBSD when gcc \ 126 is built with the --enable-threads configure-time option.} \ 127 %{!shared: \ 128 %{!pg: -lc} \ 129 %{pg: -lc_p} \ 130 }" 131 #else 132 #if FBSD_MAJOR >= 5 133 #define FBSD_LIB_SPEC " \ 134 %{!shared: \ 135 %{!pg: %{pthread:-lc_r} -lc} \ 136 %{pg: %{pthread:-lc_r_p} -lc_p} \ 137 }" 138 #else 139 #define FBSD_LIB_SPEC " \ 140 %{!shared: \ 141 %{!pg: \ 142 %{!pthread:-lc} \ 143 %{pthread:-lc_r}} \ 144 %{pg: \ 145 %{!pthread:-lc_p} \ 146 %{pthread:-lc_r_p}} \ 147 }" 148 #endif 149 #endif 150 151 #if FBSD_MAJOR < 6 152 #define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1" 153 #else 154 #define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1" 155 #endif 156