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1 /* Common configuration file for NetBSD ELF targets.
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2 Copyright (C) 2002, 2007 Free Software Foundation, Inc.
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3 Contributed by Wasabi Systems, Inc.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 /* TARGET_OS_CPP_BUILTINS() common to all NetBSD ELF targets. */
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22 #define NETBSD_OS_CPP_BUILTINS_ELF() \
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23 do \
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24 { \
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25 NETBSD_OS_CPP_BUILTINS_COMMON(); \
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26 } \
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27 while (0)
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28
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29 /* This defines which switch letters take arguments. On NetBSD, most
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30 of the normal cases (defined by gcc.c) apply, and we also have -h*
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31 and -z* options (for the linker) (coming from SVR4). */
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32
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33 #undef SWITCH_TAKES_ARG
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34 #define SWITCH_TAKES_ARG(CHAR) \
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35 (DEFAULT_SWITCH_TAKES_ARG (CHAR) \
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36 || (CHAR) == 'h' \
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37 || (CHAR) == 'z' \
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38 || (CHAR) == 'R')
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39
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40
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41 /* Provide a STARTFILE_SPEC appropriate for NetBSD ELF. Here we
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42 provide support for the special GCC option -static. On ELF
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43 targets, we also add the crtbegin.o file, which provides part
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44 of the support for getting C++ file-scope static objects
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45 constructed before entering "main". */
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46
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47 #define NETBSD_STARTFILE_SPEC \
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48 "%{!shared: \
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49 %{pg:gcrt0%O%s} \
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50 %{!pg: \
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51 %{p:gcrt0%O%s} \
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52 %{!p:crt0%O%s}}} \
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53 %:if-exists(crti%O%s) \
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54 %{static:%:if-exists-else(crtbeginT%O%s crtbegin%O%s)} \
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55 %{!static: \
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56 %{!shared:crtbegin%O%s} %{shared:crtbeginS%O%s}}"
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57
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58 #undef STARTFILE_SPEC
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59 #define STARTFILE_SPEC NETBSD_STARTFILE_SPEC
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60
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61
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62 /* Provide an ENDFILE_SPEC appropriate for NetBSD ELF. Here we
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63 add crtend.o, which provides part of the support for getting
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64 C++ file-scope static objects deconstructed after exiting "main". */
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65
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66 #define NETBSD_ENDFILE_SPEC \
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67 "%{!shared:crtend%O%s} %{shared:crtendS%O%s} \
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68 %:if-exists(crtn%O%s)"
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69
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70 #undef ENDFILE_SPEC
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71 #define ENDFILE_SPEC NETBSD_ENDFILE_SPEC
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72
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73 /* Provide a LINK_SPEC appropriate for NetBSD ELF. Here we provide
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74 support for the special GCC options -assert, -R, -rpath, -shared,
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75 -nostdlib, -static, -rdynamic, and -dynamic-linker.
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76
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77 Target-specific code can use this in conjunction with any other
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78 target-specific LINK_SPEC options.
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79
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80 Target-specific code must provide the %(netbsd_entry_point) spec. */
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81
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82 #define NETBSD_LINK_SPEC_ELF \
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83 "%{assert*} %{R*} %{rpath*} \
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84 %{shared:-shared} \
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85 %{!shared: \
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86 -dc -dp \
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87 %{!nostdlib: \
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88 %{!r*: \
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89 %{!e*:-e %(netbsd_entry_point)}}} \
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90 %{!static: \
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91 %{rdynamic:-export-dynamic} \
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92 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \
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93 %{static:-static}}"
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94
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95 /* Use --as-needed -lgcc_s for eh support. */
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96 #ifdef HAVE_LD_AS_NEEDED
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97 #define USE_LD_AS_NEEDED 1
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98 #endif
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