1/* Base configuration file for all FreeBSD targets.
2   Copyright (C) 1999, 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GCC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING.  If not, write to
18the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19Boston, MA 02110-1301, USA.  */
20
21/* $FreeBSD$ */
22
23/* Common FreeBSD configuration.
24   All FreeBSD architectures should include this file, which will specify
25   their commonalities.
26   Adapted from gcc/config/freebsd.h by
27   David O'Brien <obrien@FreeBSD.org>
28   Loren J. Rittle <ljrittle@acm.org>.  */
29
30
31/* In case we need to know.  */
32#define USING_CONFIG_FREEBSD_SPEC 1
33
34/* This defines which switch letters take arguments.  On FreeBSD, most of
35   the normal cases (defined in gcc.c) apply, and we also have -h* and
36   -z* options (for the linker) (coming from SVR4).
37   We also have -R (alias --rpath), no -z, --soname (-h), --assert etc.  */
38
39#define FBSD_SWITCH_TAKES_ARG(CHAR)					\
40  (DEFAULT_SWITCH_TAKES_ARG (CHAR)					\
41    || (CHAR) == 'h'							\
42    || (CHAR) == 'z' /* ignored by ld */				\
43    || (CHAR) == 'R')
44
45/* This defines which multi-letter switches take arguments.  */
46
47#define FBSD_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"))
52
53#define FBSD_TARGET_OS_CPP_BUILTINS()					\
54  do									\
55    {									\
56	builtin_define_with_int_value ("__FreeBSD__", FBSD_MAJOR);	\
57	builtin_define_std ("unix");					\
58	builtin_define_std ("__unix__");				\
59	builtin_define ("__KPRINTF_ATTRIBUTE__");			\
60	builtin_assert ("system=unix");					\
61	builtin_assert ("system=bsd");					\
62	builtin_assert ("system=FreeBSD");				\
63	FBSD_NATIVE_TARGET_OS_CPP_BUILTINS();				\
64	FBSD_TARGET_CPU_CPP_BUILTINS();					\
65    }									\
66  while (0)
67
68/* Define the default FreeBSD-specific per-CPU hook code.  */
69#define FBSD_TARGET_CPU_CPP_BUILTINS() do {} while (0)
70
71#ifdef FREEBSD_NATIVE
72#define FBSD_NATIVE_TARGET_OS_CPP_BUILTINS()				\
73  do {									\
74	builtin_define_with_int_value ("__FreeBSD_cc_version", FBSD_CC_VER); \
75  } while (0)
76#else
77#define FBSD_NATIVE_TARGET_OS_CPP_BUILTINS()				\
78  do {} while (0)
79#endif
80
81/* Provide a CPP_SPEC appropriate for FreeBSD.  We just deal with the GCC
82   option `-posix', and PIC issues.  Try to detect support for the
83   `long long' type.  Unfortunately the GCC spec parser will not allow us
84   to properly detect the "iso9899:1990" and "iso9899:199409" forms of
85   -std=c89.  Because of the ':' in the -std argument. :-(  I have left
86   them in the spec as a place holder in hopes someone knows a way to make
87   the detection of them work.  */
88
89#define FBSD_CPP_SPEC "							\
90  %(cpp_cpu)								\
91  %(cpp_arch)								\
92  %{!ansi:%{!std=c89:%{!std=iso9899.1990:%{!std=iso9899.199409:-D_LONGLONG}}}} \
93  %{posix:-D_POSIX_SOURCE}"
94
95/* Provide a STARTFILE_SPEC appropriate for FreeBSD.  Here we add the magical
96   crtbegin.o file (see crtstuff.c) which provides part of the support for
97   getting C++ file-scope static object constructed before entering `main'.  */
98
99#define FBSD_STARTFILE_SPEC "\
100  %{!shared: \
101    %{pg:gcrt1.o%s} \
102    %{!pg: \
103      %{p:gcrt1.o%s} \
104      %{!p: \
105	%{profile:gcrt1.o%s} \
106	%{!profile: \
107          %{pie: Scrt1.o%s;:crt1.o%s}}}}} \
108  crti.o%s \
109  %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
110
111/* Provide an ENDFILE_SPEC appropriate for FreeBSD/i386.  Here we tack on
112   our own magical crtend.o file (see crtstuff.c) which provides part of
113   the support for getting C++ file-scope static object constructed before
114   entering `main', followed by the normal "finalizer" file, `crtn.o'.  */
115
116#define FBSD_ENDFILE_SPEC "\
117  %{shared|pie:crtendS.o%s;:crtend.o%s} \
118  crtn.o%s "
119
120/* Provide a LIB_SPEC appropriate for FreeBSD as configured and as
121   required by the user-land thread model.  Before __FreeBSD_version
122   500016, select the appropriate libc, depending on whether we're
123   doing profiling or need threads support.  At __FreeBSD_version
124   500016 and later, when threads support is requested include both
125   -lc and the threading lib instead of only -lc_r.  To make matters
126   interesting, we can't actually use __FreeBSD_version provided by
127   <osreldate.h> directly since it breaks cross-compiling.  As a final
128   twist, make it a hard error if -pthread is provided on the command
129   line and gcc was configured with --disable-threads (this will help
130   avoid bug reports from users complaining about threading when they
131   misconfigured the gcc bootstrap but are later consulting FreeBSD
132   manual pages that refer to the mythical -pthread option).  */
133
134/* Provide a LIB_SPEC appropriate for FreeBSD.  Just select the appropriate
135   libc, depending on whether we're doing profiling or need threads support.
136   (similar to the default, except no -lg, and no -p).  */
137
138#ifdef FBSD_NO_THREADS
139#define FBSD_LIB_SPEC "							\
140  %{pthread: %eThe -pthread option is only supported on FreeBSD when gcc \
141is built with the --enable-threads configure-time option.}		\
142  %{!shared:								\
143    %{!pg: -lc}								\
144    %{pg:  -lc_p}							\
145  }"
146#else
147#include <sys/param.h>
148#if __FreeBSD_version < 500016
149#define FBSD_LIB_SPEC "							\
150  %{!shared:								\
151    %{!pg:								\
152      %{!pthread:-lc}							\
153      %{pthread:-lc_r}}							\
154    %{pg:								\
155      %{!pthread:-lc_p}							\
156      %{pthread:-lc_r_p}}						\
157  }"
158#elif __FreeBSD_version < 700022
159#define FBSD_LIB_SPEC "							\
160  %{!shared:								\
161    %{!pg: %{pthread:-lpthread} -lc}					\
162    %{pg:  %{pthread:-lpthread_p} -lc_p}				\
163  }"
164#else
165#define FBSD_LIB_SPEC "							\
166  %{!shared:								\
167    %{!pg: %{pthread:-lpthread} -lc}					\
168    %{pg:  %{pthread:-lpthread_p} -lc_p}}				\
169  %{shared:								\
170    %{pthread:-lpthread} -lc}						\
171  %{fstack-protector|fstack-protector-all:-lssp_nonshared}		\
172  "
173#endif
174#endif
175
176#if FBSD_MAJOR < 5
177#define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1"
178#else
179#define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
180#endif
181
182#if defined(HAVE_LD_EH_FRAME_HDR)
183#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
184#endif
185
186/* Use --as-needed -lgcc_s for eh support.  */
187#ifdef HAVE_LD_AS_NEEDED
188#define USE_LD_AS_NEEDED 1
189#endif
190
191#define FBSD_SIZE_TYPE \
192	(POINTER_SIZE == 64 ? "long unsigned int" : "unsigned int")
193#define FBSD_PTRDIFF_TYPE \
194	(POINTER_SIZE == 64 ? "long int" : "int")
195