1 /* Base configuration file for all FreeBSD targets. 2 Copyright (C) 1999-2013 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 3, 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 Under Section 7 of GPL version 3, you are granted additional 17 permissions described in the GCC Runtime Library Exception, version 18 3.1, as published by the Free Software Foundation. 19 20 You should have received a copy of the GNU General Public License and 21 a copy of the GCC Runtime Library Exception along with this program; 22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 <http://www.gnu.org/licenses/>. */ 24 25 /* Common FreeBSD configuration. 26 All FreeBSD architectures should include this file, which will specify 27 their commonalities. 28 Adapted from gcc/config/freebsd.h by 29 David O'Brien <obrien@FreeBSD.org> 30 Loren J. Rittle <ljrittle@acm.org>. */ 31 32 33 /* In case we need to know. */ 34 #define USING_CONFIG_FREEBSD_SPEC 1 35 36 #define FBSD_TARGET_OS_CPP_BUILTINS() \ 37 do \ 38 { \ 39 builtin_define_with_int_value ("__FreeBSD__", FBSD_MAJOR); \ 40 builtin_define_std ("unix"); \ 41 builtin_define ("__KPRINTF_ATTRIBUTE__"); \ 42 builtin_assert ("system=unix"); \ 43 builtin_assert ("system=bsd"); \ 44 builtin_assert ("system=FreeBSD"); \ 45 FBSD_TARGET_CPU_CPP_BUILTINS(); \ 46 } \ 47 while (0) 48 49 /* Define the default FreeBSD-specific per-CPU hook code. */ 50 #define FBSD_TARGET_CPU_CPP_BUILTINS() do {} while (0) 51 52 /* Provide a CPP_SPEC appropriate for FreeBSD. We just deal with the GCC 53 option `-posix', and PIC issues. */ 54 55 #define FBSD_CPP_SPEC " \ 56 %(cpp_cpu) \ 57 %(cpp_arch) \ 58 %{posix:-D_POSIX_SOURCE}" 59 60 /* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add 61 the magical crtbegin.o file (see crtstuff.c) which provides part 62 of the support for getting C++ file-scope static object constructed 63 before entering `main'. */ 64 65 #define FBSD_STARTFILE_SPEC \ 66 "%{!shared: \ 67 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ 68 %{!p:%{profile:gcrt1.o%s} \ 69 %{!profile:crt1.o%s}}}} \ 70 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 71 72 /* Provide a ENDFILE_SPEC appropriate for FreeBSD. Here we tack on 73 the magical crtend.o file (see crtstuff.c) which provides part of 74 the support for getting C++ file-scope static object constructed 75 before entering `main', followed by a normal "finalizer" file, 76 `crtn.o'. */ 77 78 #define FBSD_ENDFILE_SPEC \ 79 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" 80 81 /* Provide a LIB_SPEC appropriate for FreeBSD as configured and as 82 required by the user-land thread model. Before __FreeBSD_version 83 500016, select the appropriate libc, depending on whether we're 84 doing profiling or need threads support. At __FreeBSD_version 85 500016 and later, when threads support is requested include both 86 -lc and the threading lib instead of only -lc_r. To make matters 87 interesting, we can't actually use __FreeBSD_version provided by 88 <osreldate.h> directly since it breaks cross-compiling. As a final 89 twist, make it a hard error if -pthread is provided on the command 90 line and gcc was configured with --disable-threads (this will help 91 avoid bug reports from users complaining about threading when they 92 misconfigured the gcc bootstrap but are later consulting FreeBSD 93 manual pages that refer to the mythical -pthread option). */ 94 95 /* Provide a LIB_SPEC appropriate for FreeBSD. Just select the appropriate 96 libc, depending on whether we're doing profiling or need threads support. 97 (similar to the default, except no -lg, and no -p). */ 98 99 #ifdef FBSD_NO_THREADS 100 #define FBSD_LIB_SPEC " \ 101 %{pthread: %eThe -pthread option is only supported on FreeBSD when gcc \ 102 is built with the --enable-threads configure-time option.} \ 103 %{!shared: \ 104 %{!pg: -lc} \ 105 %{pg: -lc_p} \ 106 }" 107 #else 108 #if FBSD_MAJOR < 5 109 #define FBSD_LIB_SPEC " \ 110 %{!shared: \ 111 %{!pg: \ 112 %{!pthread:-lc} \ 113 %{pthread:-lc_r}} \ 114 %{pg: \ 115 %{!pthread:-lc_p} \ 116 %{pthread:-lc_r_p}} \ 117 }" 118 #else 119 #define FBSD_LIB_SPEC " \ 120 %{!shared: \ 121 %{!pg: %{pthread:-lpthread} -lc} \ 122 %{pg: %{pthread:-lpthread_p} -lc_p} \ 123 } \ 124 %{shared: \ 125 %{pthread:-lpthread} -lc \ 126 }" 127 #endif 128 #endif 129 130 #if FBSD_MAJOR < 6 131 #define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1" 132 #else 133 #define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1" 134 #endif 135 136 /* NOTE: The freebsd-spec.h header is included also for various 137 non-FreeBSD powerpc targets, thus it should never define macros 138 other than FBSD_* prefixed ones, or USING_CONFIG_FREEBSD_SPEC. */ 139