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) 1995-2016 Free Software Foundation, Inc. 5 Contributed by Eric Youngdale. 6 Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org). 7 8 This file is part of GCC. 9 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) 13 any later version. 14 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. 19 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. 23 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/>. */ 28 29 /* Don't assume anything about the header files. */ 30 #define NO_IMPLICIT_EXTERN_C 31 32 #undef ASM_APP_ON 33 #define ASM_APP_ON "#APP\n" 34 35 #undef ASM_APP_OFF 36 #define ASM_APP_OFF "#NO_APP\n" 37 38 #if ENABLE_OFFLOADING == 1 39 #define CRTOFFLOADBEGIN "%{fopenacc|fopenmp:crtoffloadbegin%O%s}" 40 #define CRTOFFLOADEND "%{fopenacc|fopenmp:crtoffloadend%O%s}" 41 #else 42 #define CRTOFFLOADBEGIN "" 43 #define CRTOFFLOADEND "" 44 #endif 45 46 /* Provide a STARTFILE_SPEC appropriate for GNU userspace. Here we add 47 the GNU userspace magical crtbegin.o file (see crtstuff.c) which 48 provides part of the support for getting C++ file-scope static 49 object constructed before entering `main'. */ 50 51 #if defined HAVE_LD_PIE 52 #define GNU_USER_TARGET_STARTFILE_SPEC \ 53 "%{shared:; \ 54 pg|p|profile:gcrt1.o%s; \ 55 static:crt1.o%s; \ 56 " PIE_SPEC ":Scrt1.o%s; \ 57 :crt1.o%s} \ 58 crti.o%s \ 59 %{static:crtbeginT.o%s; \ 60 shared|" PIE_SPEC ":crtbeginS.o%s; \ 61 :crtbegin.o%s} \ 62 %{fvtable-verify=none:%s; \ 63 fvtable-verify=preinit:vtv_start_preinit.o%s; \ 64 fvtable-verify=std:vtv_start.o%s} \ 65 " CRTOFFLOADBEGIN 66 #else 67 #define GNU_USER_TARGET_STARTFILE_SPEC \ 68 "%{shared:; \ 69 pg|p|profile:gcrt1.o%s; \ 70 :crt1.o%s} \ 71 crti.o%s \ 72 %{static:crtbeginT.o%s; \ 73 shared|pie:crtbeginS.o%s; \ 74 :crtbegin.o%s} \ 75 %{fvtable-verify=none:%s; \ 76 fvtable-verify=preinit:vtv_start_preinit.o%s; \ 77 fvtable-verify=std:vtv_start.o%s} \ 78 " CRTOFFLOADBEGIN 79 #endif 80 #undef STARTFILE_SPEC 81 #define STARTFILE_SPEC GNU_USER_TARGET_STARTFILE_SPEC 82 83 /* Provide a ENDFILE_SPEC appropriate for GNU userspace. Here we tack on 84 the GNU userspace magical crtend.o file (see crtstuff.c) which 85 provides part of the support for getting C++ file-scope static 86 object constructed before entering `main', followed by a normal 87 GNU userspace "finalizer" file, `crtn.o'. */ 88 89 #if defined HAVE_LD_PIE 90 #define GNU_USER_TARGET_ENDFILE_SPEC \ 91 "%{fvtable-verify=none:%s; \ 92 fvtable-verify=preinit:vtv_end_preinit.o%s; \ 93 fvtable-verify=std:vtv_end.o%s} \ 94 %{static:crtend.o%s; \ 95 shared|" PIE_SPEC ":crtendS.o%s; \ 96 :crtend.o%s} \ 97 crtn.o%s \ 98 " CRTOFFLOADEND 99 #else 100 #define GNU_USER_TARGET_ENDFILE_SPEC \ 101 "%{fvtable-verify=none:%s; \ 102 fvtable-verify=preinit:vtv_end_preinit.o%s; \ 103 fvtable-verify=std:vtv_end.o%s} \ 104 %{static:crtend.o%s; \ 105 shared|pie:crtendS.o%s; \ 106 :crtend.o%s} \ 107 crtn.o%s \ 108 " CRTOFFLOADEND 109 #endif 110 #undef ENDFILE_SPEC 111 #define ENDFILE_SPEC GNU_USER_TARGET_ENDFILE_SPEC 112 113 /* This is for -profile to use -lc_p instead of -lc. */ 114 #define GNU_USER_TARGET_CC1_SPEC "%{profile:-p}" 115 #ifndef CC1_SPEC 116 #define CC1_SPEC GNU_USER_TARGET_CC1_SPEC 117 #endif 118 119 /* The GNU C++ standard library requires that these macros be defined. */ 120 #undef CPLUSPLUS_CPP_SPEC 121 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" 122 123 #define GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC \ 124 "%{shared:-lc} \ 125 %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}" 126 127 #define GNU_USER_TARGET_LIB_SPEC \ 128 "%{pthread:-lpthread} " \ 129 GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC 130 131 #undef LIB_SPEC 132 #define LIB_SPEC GNU_USER_TARGET_LIB_SPEC 133 134 #if defined(HAVE_LD_EH_FRAME_HDR) 135 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " 136 #endif 137 138 #undef LINK_GCC_C_SEQUENCE_SPEC 139 #define LINK_GCC_C_SEQUENCE_SPEC \ 140 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" 141 142 /* Use --as-needed -lgcc_s for eh support. */ 143 #ifdef HAVE_LD_AS_NEEDED 144 #define USE_LD_AS_NEEDED 1 145 #endif 146 147 #define TARGET_POSIX_IO 148 149 #undef TARGET_LIBC_HAS_FUNCTION 150 #define TARGET_LIBC_HAS_FUNCTION gnu_libc_has_function 151 152 /* Link -lasan early on the command line. For -static-libasan, don't link 153 it for -shared link, the executable should be compiled with -static-libasan 154 in that case, and for executable link with --{,no-}whole-archive around 155 it to force everything into the executable. And similarly for -ltsan 156 and -llsan. */ 157 #if defined(HAVE_LD_STATIC_DYNAMIC) 158 #undef LIBASAN_EARLY_SPEC 159 #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \ 160 "%{static-libasan:%{!shared:" \ 161 LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \ 162 LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}" 163 #undef LIBTSAN_EARLY_SPEC 164 #define LIBTSAN_EARLY_SPEC "%{static-libtsan:%{!shared:" \ 165 LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \ 166 LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}" 167 #undef LIBLSAN_EARLY_SPEC 168 #define LIBLSAN_EARLY_SPEC "%{static-liblsan:%{!shared:" \ 169 LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \ 170 LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}" 171 #endif 172