1 /* Common configuration file for NetBSD ELF targets. 2 Copyright (C) 2002-2013 Free Software Foundation, Inc. 3 Contributed by Wasabi Systems, Inc. 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 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 /* TARGET_OS_CPP_BUILTINS() common to all NetBSD ELF targets. */ 22 #define NETBSD_OS_CPP_BUILTINS_ELF() \ 23 do \ 24 { \ 25 NETBSD_OS_CPP_BUILTINS_COMMON(); \ 26 } \ 27 while (0) 28 29 /* Provide a STARTFILE_SPEC appropriate for NetBSD ELF. Here we 30 provide support for the special GCC option -static. On ELF 31 targets, we also add the crtbegin.o file, which provides part 32 of the support for getting C++ file-scope static objects 33 constructed before entering "main". */ 34 35 #define NETBSD_STARTFILE_SPEC \ 36 "%{!shared: \ 37 %{pg:gcrt0%O%s} \ 38 %{!pg: \ 39 %{p:gcrt0%O%s} \ 40 %{!p:crt0%O%s}}} \ 41 %:if-exists(crti%O%s) \ 42 %{static:%:if-exists-else(crtbeginT%O%s crtbegin%O%s)} \ 43 %{!static: \ 44 %{!shared: \ 45 %{!pie:crtbegin%O%s} \ 46 %{pie:crtbeginS%O%s}} \ 47 %{shared:crtbeginS%O%s}}" 48 49 #undef STARTFILE_SPEC 50 #define STARTFILE_SPEC NETBSD_STARTFILE_SPEC 51 52 53 /* Provide an ENDFILE_SPEC appropriate for NetBSD ELF. Here we 54 add crtend.o, which provides part of the support for getting 55 C++ file-scope static objects deconstructed after exiting "main". */ 56 57 #define NETBSD_ENDFILE_SPEC \ 58 "%{!shared: \ 59 %{!pie:crtend%O%s} \ 60 %{pie:crtendS%O%s}} \ 61 %{shared:crtendS%O%s} \ 62 %:if-exists(crtn%O%s)" 63 64 #undef ENDFILE_SPEC 65 #define ENDFILE_SPEC NETBSD_ENDFILE_SPEC 66 67 /* Provide a LINK_SPEC appropriate for NetBSD ELF. Here we provide 68 support for the special GCC options -assert, -R, -rpath, -shared, 69 -nostdlib, -static, -rdynamic, and -dynamic-linker. 70 71 Target-specific code can use this in conjunction with any other 72 target-specific LINK_SPEC options. 73 74 Target-specific code must provide the %(netbsd_entry_point) spec. */ 75 76 #define NETBSD_LINK_SPEC_ELF \ 77 "%{assert*} %{R*} %{rpath*} \ 78 %{shared:-shared} \ 79 %{symbolic:-Bsymbolic} \ 80 %{!shared: \ 81 -dc -dp \ 82 %{!nostdlib: \ 83 %{!r: \ 84 %{!e*:-e %(netbsd_entry_point)}}} \ 85 %{!static: \ 86 %{rdynamic:-export-dynamic} \ 87 -dynamic-linker /usr/libexec/ld.elf_so} \ 88 %{static:-static}}" 89 90 /* Use --as-needed -lgcc_s for eh support. */ 91 #ifdef HAVE_LD_AS_NEEDED 92 #define USE_LD_AS_NEEDED 1 93 #endif 94 95 #define MFLIB_SPEC " %{fmudflap: -export-dynamic -lmudflap \ 96 %{static:%(link_gcc_c_sequence) -lmudflap}} \ 97 %{fmudflapth: -export-dynamic -lmudflapth -lpthread \ 98 %{static:%(link_gcc_c_sequence) -lmudflapth}} " 99 100 #undef TARGET_UNWIND_TABLES_DEFAULT 101 #define TARGET_UNWIND_TABLES_DEFAULT true 102