1 /* Common configuration file for NetBSD ELF targets. 2 Copyright (C) 2002-2018 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:crtbegin%O%s} %{shared:crtbeginS%O%s}}" 45 46 #undef STARTFILE_SPEC 47 #define STARTFILE_SPEC NETBSD_STARTFILE_SPEC 48 49 50 /* Provide an ENDFILE_SPEC appropriate for NetBSD ELF. Here we 51 add crtend.o, which provides part of the support for getting 52 C++ file-scope static objects deconstructed after exiting "main". */ 53 54 #define NETBSD_ENDFILE_SPEC \ 55 "%{!shared:crtend%O%s} %{shared:crtendS%O%s} \ 56 %:if-exists(crtn%O%s)" 57 58 #undef ENDFILE_SPEC 59 #define ENDFILE_SPEC NETBSD_ENDFILE_SPEC 60 61 /* Provide a LINK_SPEC appropriate for NetBSD ELF. Here we provide 62 support for the special GCC options -assert, -R, -rpath, -shared, 63 -nostdlib, -static, -rdynamic, and -dynamic-linker. 64 65 Target-specific code can use this in conjunction with any other 66 target-specific LINK_SPEC options. 67 68 Target-specific code must provide the %(netbsd_entry_point) spec. */ 69 70 #define NETBSD_LINK_SPEC_ELF \ 71 "%{assert*} %{R*} %{rpath*} \ 72 %{shared:-shared} \ 73 %{symbolic:-Bsymbolic} \ 74 %{!shared: \ 75 -dc -dp \ 76 %{!nostdlib: \ 77 %{!r: \ 78 %{!e*:-e %(netbsd_entry_point)}}} \ 79 %{!static: \ 80 %{rdynamic:-export-dynamic} \ 81 -dynamic-linker /usr/libexec/ld.elf_so} \ 82 %{static:-static}}" 83 84 /* Use --as-needed -lgcc_s for eh support. */ 85 #ifdef HAVE_LD_AS_NEEDED 86 #define USE_LD_AS_NEEDED 1 87 #endif 88