* c-common.c (catenate_strings): New.
[official-gcc.git] / gcc / config / linux.h
blob5b6ff5471d27ae06b0d1f0b3ac98d5b328380321
1 /* Definitions for Linux-based GNU systems with ELF format
2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003, 2004
3 Free Software Foundation, Inc.
4 Contributed by Eric Youngdale.
5 Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org).
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
12 any later version.
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING. If not, write to
21 the Free Software Foundation, 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 /* Don't assume anything about the header files. */
25 #define NO_IMPLICIT_EXTERN_C
27 #undef ASM_APP_ON
28 #define ASM_APP_ON "#APP\n"
30 #undef ASM_APP_OFF
31 #define ASM_APP_OFF "#NO_APP\n"
33 #undef MD_EXEC_PREFIX
34 #undef MD_STARTFILE_PREFIX
36 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
37 the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
38 provides part of the support for getting C++ file-scope static
39 object constructed before entering `main'. */
41 #undef STARTFILE_SPEC
42 #if defined HAVE_LD_PIE
43 #define STARTFILE_SPEC \
44 "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
45 crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
46 #else
47 #define STARTFILE_SPEC \
48 "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
49 crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
50 #endif
52 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
53 the GNU/Linux magical crtend.o file (see crtstuff.c) which
54 provides part of the support for getting C++ file-scope static
55 object constructed before entering `main', followed by a normal
56 GNU/Linux "finalizer" file, `crtn.o'. */
58 #undef ENDFILE_SPEC
59 #define ENDFILE_SPEC \
60 "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
62 /* This is for -profile to use -lc_p instead of -lc. */
63 #ifndef CC1_SPEC
64 #define CC1_SPEC "%{profile:-p}"
65 #endif
67 /* The GNU C++ standard library requires that these macros be defined. */
68 #undef CPLUSPLUS_CPP_SPEC
69 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
71 #undef LIB_SPEC
72 #define LIB_SPEC \
73 "%{pthread:-lpthread} \
74 %{shared:-lc} \
75 %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
77 #define LINUX_TARGET_OS_CPP_BUILTINS() \
78 do { \
79 builtin_define ("__gnu_linux__"); \
80 builtin_define_std ("linux"); \
81 builtin_define_std ("unix"); \
82 builtin_assert ("system=linux"); \
83 builtin_assert ("system=unix"); \
84 builtin_assert ("system=posix"); \
85 } while (0)
87 #if defined(HAVE_LD_EH_FRAME_HDR)
88 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
89 #endif
91 /* Define this so we can compile MS code for use with WINE. */
92 #define HANDLE_PRAGMA_PACK_PUSH_POP
94 #define LINK_GCC_C_SEQUENCE_SPEC \
95 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
97 /* Use --as-needed -lgcc_s for eh support. */
98 #ifdef HAVE_LD_AS_NEEDED
99 #define USE_LD_AS_NEEDED 1
100 #endif
102 /* Determine whether the the entire c99 runtime
103 is present in the runtime library. */
104 #define TARGET_C99_FUNCTIONS 1
106 #define TARGET_HAS_F_SETLKW