1 /* Base configuration file for all DragonFly targets.
2 Copyright (C) 1999, 2000, 2001, 2007, 2008 Free Software Foundation, Inc.
4 This file is part of GCC.
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)
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.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* Common DragonFly configuration.
21 All DragonFly architectures should include this file, which will specify
24 Adapted from gcc/config/freebsd.h by
25 Joerg Sonnenberger <joerg@bec.de>
27 Adapted from gcc/config/i386/freebsd-elf.h by
28 David O'Brien <obrien@FreeBSD.org>.
29 Further work by David O'Brien <obrien@FreeBSD.org> and
30 Loren J. Rittle <ljrittle@acm.org>. */
33 /* This defines which switch letters take arguments. On DragonFly, most of
34 the normal cases (defined in gcc.c) apply, and we also have -h* and
35 -z* options (for the linker) (coming from SVR4).
36 We also have -R (alias --rpath), no -z, --soname (-h), --assert etc. */
38 #undef SWITCH_TAKES_ARG
39 #define SWITCH_TAKES_ARG(CHAR) \
40 (DEFAULT_SWITCH_TAKES_ARG (CHAR) \
42 || (CHAR) == 'z' /* ignored by ld */ \
46 #undef WORD_SWITCH_TAKES_ARG
47 #define WORD_SWITCH_TAKES_ARG(STR) \
48 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
49 || !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link") \
50 || !strcmp ((STR), "soname") || !strcmp ((STR), "defsym") \
51 || !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))
53 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
56 SWITCH_TAKES_ARG & WORD_SWITCH_TAKES_ARG removed due to poisoning
57 prior to gcc 4.6.0 release. Replaced with dragonfly.opt.
58 http://gcc.gnu.org/ml/gcc-patches/2010-10/msg02102.html
59 http://gcc.gnu.org/ml/gcc-patches/2010-10/msg02373.html
61 HANDLE_PRAGMA_PACK_PUSH_POP poisoned by GCC 4.6.0
62 http://gcc.gnu.org/ml/gcc-patches/2010-11/msg02106.html */
64 #undef TARGET_OS_CPP_BUILTINS
65 #define TARGET_OS_CPP_BUILTINS() \
68 builtin_define_std ("unix"); \
69 builtin_define ("__DragonFly__"); \
70 builtin_assert ("system=unix"); \
71 builtin_assert ("system=bsd"); \
72 builtin_assert ("system=DragonFly"); \
78 "%(cpp_cpu) %(cpp_arch) %{posix:-D_POSIX_SOURCE}"
81 #define STARTFILE_SPEC \
87 %{profile: gcrt1.o%s} \
89 %{pie: Scrt1.o%s;:crt1.o%s}}}}} \
91 %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
94 #define ENDFILE_SPEC \
95 "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
99 "%{pthread:-lpthread} -lc"
101 /* Provide a LINK_SPEC appropriate for DragonFly. Here we provide support
102 for the special GCC options -static and -shared, which allow us to
103 link things in one of these three modes by applying the appropriate
104 combinations of options at link-time.
106 When the -shared link option is used a final link is not being
109 #define DFBSD_LINK_SPEC \
110 "%{p:%nconsider using '-pg' instead of '-p' with gprof(1)} \
112 %{assert*} %{R*} %{rpath*} %{defsym*} \
113 %{shared:-Bshareable %{h*} %{soname*}} \
116 %{rdynamic:-export-dynamic} \
117 -dynamic-linker %(dfbsd_dynamic_linker) \
119 %{static:-Bstatic}} \
120 %{!static:--hash-style=both} \
121 %{symbolic:-Bsymbolic}"
124 #define LINK_SPEC DFBSD_LINK_SPEC
126 #define DFBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.2"
128 #if defined(HAVE_LD_EH_FRAME_HDR)
129 #define LINK_EH_SPEC "--eh-frame-hdr"
132 /* Use --as-needed -lgcc_s for eh support. */
133 #ifdef HAVE_LD_AS_NEEDED
134 #define USE_LD_AS_NEEDED 1
137 /************************[ Target stuff ]***********************************/
139 /* All DragonFly Architectures support the ELF object file format. */
140 #undef OBJECT_FORMAT_ELF
141 #define OBJECT_FORMAT_ELF
143 /* Don't assume anything about the header files. */
144 #undef NO_IMPLICIT_EXTERN_C
145 #define NO_IMPLICIT_EXTERN_C 1
147 /* Make gcc agree with DragonFly's standard headers (<machine/stdint.h>, etc...) */
150 #define WCHAR_TYPE "int"
152 /* Code generation parameters. */
154 /* Use periods rather than dollar signs in special g++ assembler names.
155 This ensures the configuration knows our system correctly so we can link
156 with libraries compiled with the native cc. */
157 #undef NO_DOLLAR_IN_LABEL
159 /* Used by libgcc2.c. We support file locking with fcntl / F_SETLKW.
160 This enables the test coverage code to use file locking when exiting a
161 program, which avoids race conditions if the program has forked. */
162 #define TARGET_POSIX_IO