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1 /* Machine description for AArch64 architecture.
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2 Copyright (C) 2009-2017 Free Software Foundation, Inc.
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3 Contributed by ARM Ltd.
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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 it
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8 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, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 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 #ifndef GCC_AARCH64_LINUX_H
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22 #define GCC_AARCH64_LINUX_H
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23
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24 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
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25
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26 #undef MUSL_DYNAMIC_LINKER
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27 #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
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28
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29 #undef ASAN_CC1_SPEC
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30 #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
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31
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32 #undef CC1_SPEC
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33 #define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC
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34
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35 #define CPP_SPEC "%{pthread:-D_REENTRANT}"
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36
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37 #define LINUX_TARGET_LINK_SPEC "%{h*} \
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38 %{static:-Bstatic} \
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39 %{shared:-shared} \
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40 %{symbolic:-Bsymbolic} \
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41 %{!static:%{!static-pie: \
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42 %{rdynamic:-export-dynamic} \
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43 %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}} \
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44 %{static-pie:-Bstatic -pie --no-dynamic-linker -z text} \
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45 -X \
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46 %{mbig-endian:-EB} %{mlittle-endian:-EL} \
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47 -maarch64linux%{mabi=ilp32:32}%{mbig-endian:b}"
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48
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49 #if TARGET_FIX_ERR_A53_835769_DEFAULT
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50 #define CA53_ERR_835769_SPEC \
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51 " %{!mno-fix-cortex-a53-835769:--fix-cortex-a53-835769}"
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52 #else
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53 #define CA53_ERR_835769_SPEC \
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54 " %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}"
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55 #endif
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56
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57 #if TARGET_FIX_ERR_A53_843419_DEFAULT
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58 #define CA53_ERR_843419_SPEC \
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59 " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}"
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60 #else
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61 #define CA53_ERR_843419_SPEC \
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62 " %{mfix-cortex-a53-843419:--fix-cortex-a53-843419}"
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63 #endif
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64
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65 #define LINK_SPEC LINUX_TARGET_LINK_SPEC \
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66 CA53_ERR_835769_SPEC \
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67 CA53_ERR_843419_SPEC
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68
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69 #define GNU_USER_TARGET_MATHFILE_SPEC \
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70 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
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71
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72 #undef ENDFILE_SPEC
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73 #define ENDFILE_SPEC \
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74 GNU_USER_TARGET_MATHFILE_SPEC " " \
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75 GNU_USER_TARGET_ENDFILE_SPEC
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76
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77 #define TARGET_OS_CPP_BUILTINS() \
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78 do \
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79 { \
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80 GNU_USER_TARGET_OS_CPP_BUILTINS(); \
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81 } \
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82 while (0)
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83
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84 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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85
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86 /* Uninitialized common symbols in non-PIE executables, even with
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87 strong definitions in dependent shared libraries, will resolve
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88 to COPY relocated symbol in the executable. See PR65780. */
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89 #undef TARGET_BINDS_LOCAL_P
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90 #define TARGET_BINDS_LOCAL_P default_binds_local_p_2
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91
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92 /* Define this to be nonzero if static stack checking is supported. */
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93 #define STACK_CHECK_STATIC_BUILTIN 1
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94
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95 #endif /* GCC_AARCH64_LINUX_H */
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