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) 1995-2013 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 /* 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'. */ 42 43 #if defined HAVE_LD_PIE 44 #define GNU_USER_TARGET_STARTFILE_SPEC \ 45 "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \ 46 crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" 47 #else 48 #define GNU_USER_TARGET_STARTFILE_SPEC \ 49 "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \ 50 crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" 51 #endif 52 #undef STARTFILE_SPEC 53 #define STARTFILE_SPEC GNU_USER_TARGET_STARTFILE_SPEC 54 55 /* Provide a ENDFILE_SPEC appropriate for GNU userspace. Here we tack on 56 the GNU userspace magical crtend.o file (see crtstuff.c) which 57 provides part of the support for getting C++ file-scope static 58 object constructed before entering `main', followed by a normal 59 GNU userspace "finalizer" file, `crtn.o'. */ 60 61 #define GNU_USER_TARGET_ENDFILE_SPEC \ 62 "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" 63 #undef ENDFILE_SPEC 64 #define ENDFILE_SPEC GNU_USER_TARGET_ENDFILE_SPEC 65 66 /* This is for -profile to use -lc_p instead of -lc. */ 67 #define GNU_USER_TARGET_CC1_SPEC "%{profile:-p}" 68 #ifndef CC1_SPEC 69 #define CC1_SPEC GNU_USER_TARGET_CC1_SPEC 70 #endif 71 72 /* The GNU C++ standard library requires that these macros be defined. */ 73 #undef CPLUSPLUS_CPP_SPEC 74 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" 75 76 #define GNU_USER_TARGET_LIB_SPEC \ 77 "%{pthread:-lpthread} \ 78 %{shared:-lc} \ 79 %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}" 80 #undef LIB_SPEC 81 #define LIB_SPEC GNU_USER_TARGET_LIB_SPEC 82 83 #if defined(HAVE_LD_EH_FRAME_HDR) 84 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " 85 #endif 86 87 #undef LINK_GCC_C_SEQUENCE_SPEC 88 #define LINK_GCC_C_SEQUENCE_SPEC \ 89 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" 90 91 /* Use --as-needed -lgcc_s for eh support. */ 92 #ifdef HAVE_LD_AS_NEEDED 93 #define USE_LD_AS_NEEDED 1 94 #endif 95 96 #define TARGET_POSIX_IO 97 98 #define TARGET_C99_FUNCTIONS 1 99 #define TARGET_HAS_SINCOS 1 100 101 /* Link -lasan early on the command line. For -static-libasan, don't link 102 it for -shared link, the executable should be compiled with -static-libasan 103 in that case, and for executable link link with --{,no-}whole-archive around 104 it to force everything into the executable. And similarly for -ltsan. */ 105 #if defined(HAVE_LD_STATIC_DYNAMIC) 106 #undef LIBASAN_EARLY_SPEC 107 #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \ 108 "%{static-libasan:%{!shared:" \ 109 LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \ 110 LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}" 111 #undef LIBTSAN_EARLY_SPEC 112 #define LIBTSAN_EARLY_SPEC "%{static-libtsan:%{!shared:" \ 113 LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \ 114 LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}" 115 #endif 116 117 /* Additional libraries needed by -static-libasan. */ 118 #undef STATIC_LIBASAN_LIBS 119 #define STATIC_LIBASAN_LIBS "-ldl -lpthread" 120 121 /* Additional libraries needed by -static-libtsan. */ 122 #undef STATIC_LIBTSAN_LIBS 123 #define STATIC_LIBTSAN_LIBS "-ldl -lpthread" 124