1 /* Definitions for systems using, at least optionally, a GNU
2 (glibc-based) userspace or other userspace with libc derived from
3 glibc (e.g. uClibc) or for which similar specs are appropriate.
4 Copyright (C) 1995-2015 Free Software Foundation, Inc.
5 Contributed by Eric Youngdale.
6 Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org).
8 This file is part of GCC.
10 GCC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3, or (at your option)
15 GCC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 Under Section 7 of GPL version 3, you are granted additional
21 permissions described in the GCC Runtime Library Exception, version
22 3.1, as published by the Free Software Foundation.
24 You should have received a copy of the GNU General Public License and
25 a copy of the GCC Runtime Library Exception along with this program;
26 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
27 <http://www.gnu.org/licenses/>. */
29 /* Don't assume anything about the header files. */
30 #define NO_IMPLICIT_EXTERN_C
33 #define ASM_APP_ON "#APP\n"
36 #define ASM_APP_OFF "#NO_APP\n"
38 /* Provide a STARTFILE_SPEC appropriate for GNU userspace. Here we add
39 the GNU userspace magical crtbegin.o file (see crtstuff.c) which
40 provides part of the support for getting C++ file-scope static
41 object constructed before entering `main'. */
43 #if defined HAVE_LD_PIE
44 #define GNU_USER_TARGET_STARTFILE_SPEC \
45 "%{!shared: %{pg|p|profile:gcrt1.o%s;: \
46 %{" PIE_SPEC ":Scrt1.o%s} %{" NO_PIE_SPEC ":crt1.o%s}}} \
47 crti.o%s %{static:crtbeginT.o%s;: %{shared:crtbeginS.o%s} \
48 %{" PIE_SPEC ":crtbeginS.o%s} \
49 %{" NO_PIE_SPEC ":crtbegin.o%s}} \
50 %{fvtable-verify=none:%s; \
51 fvtable-verify=preinit:vtv_start_preinit.o%s; \
52 fvtable-verify=std:vtv_start.o%s}"
54 #define GNU_USER_TARGET_STARTFILE_SPEC \
55 "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
56 crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
57 %{fvtable-verify=none:%s; \
58 fvtable-verify=preinit:vtv_start_preinit.o%s; \
59 fvtable-verify=std:vtv_start.o%s}"
62 #define STARTFILE_SPEC GNU_USER_TARGET_STARTFILE_SPEC
64 /* Provide a ENDFILE_SPEC appropriate for GNU userspace. Here we tack on
65 the GNU userspace magical crtend.o file (see crtstuff.c) which
66 provides part of the support for getting C++ file-scope static
67 object constructed before entering `main', followed by a normal
68 GNU userspace "finalizer" file, `crtn.o'. */
70 #if defined HAVE_LD_PIE
71 #define GNU_USER_TARGET_ENDFILE_SPEC \
72 "%{fvtable-verify=none:%s; \
73 fvtable-verify=preinit:vtv_end_preinit.o%s; \
74 fvtable-verify=std:vtv_end.o%s} \
75 %{shared:crtendS.o%s;: %{" PIE_SPEC ":crtendS.o%s} \
76 %{" NO_PIE_SPEC ":crtend.o%s}} crtn.o%s"
78 #define GNU_USER_TARGET_ENDFILE_SPEC \
79 "%{fvtable-verify=none:%s; \
80 fvtable-verify=preinit:vtv_end_preinit.o%s; \
81 fvtable-verify=std:vtv_end.o%s} \
82 %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
85 #define ENDFILE_SPEC GNU_USER_TARGET_ENDFILE_SPEC
87 /* This is for -profile to use -lc_p instead of -lc. */
88 #define GNU_USER_TARGET_CC1_SPEC "%{profile:-p}"
90 #define CC1_SPEC GNU_USER_TARGET_CC1_SPEC
93 /* The GNU C++ standard library requires that these macros be defined. */
94 #undef CPLUSPLUS_CPP_SPEC
95 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
97 #define GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC \
99 %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
101 #define GNU_USER_TARGET_LIB_SPEC \
102 "%{pthread:-lpthread} " \
103 GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC
106 #define LIB_SPEC GNU_USER_TARGET_LIB_SPEC
108 #if defined(HAVE_LD_EH_FRAME_HDR)
109 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
112 #undef LINK_GCC_C_SEQUENCE_SPEC
113 #define LINK_GCC_C_SEQUENCE_SPEC \
114 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
116 /* Use --as-needed -lgcc_s for eh support. */
117 #ifdef HAVE_LD_AS_NEEDED
118 #define USE_LD_AS_NEEDED 1
121 #define TARGET_POSIX_IO
123 #undef TARGET_LIBC_HAS_FUNCTION
124 #define TARGET_LIBC_HAS_FUNCTION gnu_libc_has_function
126 /* Link -lasan early on the command line. For -static-libasan, don't link
127 it for -shared link, the executable should be compiled with -static-libasan
128 in that case, and for executable link link with --{,no-}whole-archive around
129 it to force everything into the executable. And similarly for -ltsan
131 #if defined(HAVE_LD_STATIC_DYNAMIC)
132 #undef LIBASAN_EARLY_SPEC
133 #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \
134 "%{static-libasan:%{!shared:" \
135 LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \
136 LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}"
137 #undef LIBTSAN_EARLY_SPEC
138 #define LIBTSAN_EARLY_SPEC "%{static-libtsan:%{!shared:" \
139 LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \
140 LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}"
141 #undef LIBLSAN_EARLY_SPEC
142 #define LIBLSAN_EARLY_SPEC "%{static-liblsan:%{!shared:" \
143 LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \
144 LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}"