1 /* Base configuration file for all DragonFly targets. 2 Copyright (C) 2014-2018 Free Software Foundation, Inc. 3 Contributed by John Marino <gnugcc@marino.st> 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 Under Section 7 of GPL version 3, you are granted additional 18 permissions described in the GCC Runtime Library Exception, version 19 3.1, as published by the Free Software Foundation. 20 21 You should have received a copy of the GNU General Public License and 22 a copy of the GCC Runtime Library Exception along with this program; 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 <http://www.gnu.org/licenses/>. */ 25 26 #undef TARGET_OS_CPP_BUILTINS 27 #define TARGET_OS_CPP_BUILTINS() \ 28 do \ 29 { \ 30 builtin_define_std ("unix"); \ 31 builtin_define ("__DragonFly__"); \ 32 builtin_assert ("system=unix"); \ 33 builtin_assert ("system=bsd"); \ 34 builtin_assert ("system=DragonFly"); \ 35 } \ 36 while (0) 37 38 #undef CPP_SPEC 39 #define CPP_SPEC \ 40 "%(cpp_cpu) %(cpp_arch) %{posix:-D_POSIX_SOURCE}" 41 42 #undef STARTFILE_SPEC 43 #define STARTFILE_SPEC \ 44 "%{!shared: \ 45 %{pg:gcrt1.o%s} \ 46 %{!pg: \ 47 %{p:gcrt1.o%s} \ 48 %{!p: \ 49 %{profile: gcrt1.o%s} \ 50 %{!profile: \ 51 %{pie: Scrt1.o%s;:crt1.o%s}}}}} \ 52 crti.o%s \ 53 %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}" 54 55 #undef ENDFILE_SPEC 56 #define ENDFILE_SPEC \ 57 "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" 58 59 #undef LIB_SPEC 60 #define LIB_SPEC \ 61 "%{pthread:-lpthread} -lc" 62 63 #if defined(HAVE_LD_EH_FRAME_HDR) 64 #define LINK_EH_SPEC "--eh-frame-hdr" 65 #endif 66 67 /* Provide a LINK_SPEC appropriate for DragonFly. Here we provide support 68 for the special GCC options -static and -shared, which allow us to 69 link things in one of these three modes by applying the appropriate 70 combinations of options at link-time. 71 72 When the -shared link option is used a final link is not being 73 done. */ 74 75 #define DFBSD_LINK_SPEC \ 76 "%{p:%nconsider using '-pg' instead of '-p' with gprof(1)} \ 77 %{v:-V} \ 78 %{assert*} %{R*} %{rpath*} %{defsym*} \ 79 %{shared:-Bshareable %{h*} %{soname*}} \ 80 %{!shared: \ 81 %{!static: \ 82 %{rdynamic:-export-dynamic} \ 83 -dynamic-linker %(dfbsd_dynamic_linker) \ 84 } \ 85 %{static:-Bstatic} \ 86 } \ 87 %{!static:--hash-style=gnu} \ 88 %{symbolic:-Bsymbolic}" 89 90 #undef LINK_SPEC 91 #define LINK_SPEC DFBSD_LINK_SPEC 92 93 #if 1 /* DragonFly base: Prefer to use /libexec/ for dynamic linker */ 94 #define DFBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.2" 95 #else 96 #define DFBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.2" 97 #endif 98 99 100 /* Use --as-needed -lgcc_s for eh support. */ 101 #ifdef HAVE_LD_AS_NEEDED 102 #define USE_LD_AS_NEEDED 1 103 #endif 104 105 /************************[ Target stuff ]***********************************/ 106 107 /* All DragonFly Architectures support the ELF object file format. */ 108 #undef OBJECT_FORMAT_ELF 109 #define OBJECT_FORMAT_ELF 110 111 /* Don't assume anything about the header files. */ 112 #undef NO_IMPLICIT_EXTERN_C 113 #define NO_IMPLICIT_EXTERN_C 1 114 115 /* Follow DragonFly's standard headers (<machine/stdint.h>, etc...). */ 116 117 #undef WCHAR_TYPE 118 #define WCHAR_TYPE "int" 119 120 #undef WINT_TYPE 121 #define WINT_TYPE "int" 122 123 /* Code generation parameters. */ 124 125 /* Use periods rather than dollar signs in special g++ assembler names. 126 This ensures the configuration knows our system correctly so we can link 127 with libraries compiled with the native cc. */ 128 #undef NO_DOLLAR_IN_LABEL 129 130 /* Used by libgcc2.c. We support file locking with fcntl / F_SETLKW. 131 This enables the test coverage code to use file locking when exiting a 132 program, which avoids race conditions if the program has forked. */ 133 #define TARGET_POSIX_IO 134