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1 /* Definitions for ARM running ucLinux using ELF
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2 Copyright (C) 1999, 2001, 2004, 2005, 2007, 2008
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3 Free Software Foundation, Inc.
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4 Contributed by Philip Blundell <pb@nexus.co.uk>
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published
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10 by the Free Software Foundation; either version 3, or (at your
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11 option) any later version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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16 License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 /* We don't want a PLT. */
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23 #undef NEED_PLT_RELOC
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24 #define NEED_PLT_RELOC 0
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25
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26 #undef TARGET_VERSION
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27 #define TARGET_VERSION fputs (" (ARM/ELF ucLinux)", stderr);
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28
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29 #undef TARGET_DEFAULT
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30 #define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE)
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31
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32 /* NOTE: The remaining definitions in this file are needed because uclinux
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33 does not use config/linux.h. */
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34
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35 /* Add GNU/Linux builtins. */
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36 #undef TARGET_OS_CPP_BUILTINS
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37 #define TARGET_OS_CPP_BUILTINS() \
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38 do \
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39 { \
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40 builtin_define ("__uClinux__"); \
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41 builtin_define ("__gnu_linux__"); \
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42 builtin_define_std ("linux"); \
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43 builtin_define_std ("unix"); \
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44 builtin_assert ("system=linux"); \
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45 builtin_assert ("system=unix"); \
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46 builtin_assert ("system=posix"); \
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47 } \
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48 while (false)
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49
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50 /* Do not assume anything about header files. */
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51 #define NO_IMPLICIT_EXTERN_C
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52
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53 /* The GNU C++ standard library requires that these macros be defined. */
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54 #undef CPLUSPLUS_CPP_SPEC
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55 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
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56
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57 #undef SUBTARGET_EXTRA_LINK_SPEC
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58 #define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux"
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59
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60 /* Now we define the strings used to build the spec file. */
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61 #undef STARTFILE_SPEC
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62 #define STARTFILE_SPEC "crt1%O%s crti%O%s crtbegin%O%s"
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63
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64 #undef ENDFILE_SPEC
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65 #define ENDFILE_SPEC "crtend%O%s crtn%O%s"
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66
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67 #undef CC1_SPEC
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68 #define CC1_SPEC "%{profile:-p}"
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69
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70 #undef LINK_GCC_C_SEQUENCE_SPEC
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71 #define LINK_GCC_C_SEQUENCE_SPEC \
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72 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
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73
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74 /* Use --as-needed -lgcc_s for eh support. */
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75 #ifdef HAVE_LD_AS_NEEDED
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76 #define USE_LD_AS_NEEDED 1
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77 #endif
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78
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79 #undef LINK_SPEC
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80 #define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X -elf2flt"
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81
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82 #undef LIB_SPEC
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83 #define LIB_SPEC \
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84 "%{pthread:-lpthread} \
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85 %{shared:-lc} \
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86 %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
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87
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88 #define TARGET_DEFAULT_WORD_RELOCATIONS 1
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