gcc/config/aarch64/aarch64-linux.h

   1 /* Machine description for AArch64 architecture.
   2    Copyright (C) 2009-2018 Free Software Foundation, Inc.
   3    Contributed by ARM Ltd.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    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, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    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 #ifndef GCC_AARCH64_LINUX_H
  22 #define GCC_AARCH64_LINUX_H
  23
  24 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
  25
  26 #undef MUSL_DYNAMIC_LINKER
  27 #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
  28
  29 #undef  ASAN_CC1_SPEC
  30 #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
  31
  32 #undef  CC1_SPEC
  33 #define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC
  34
  35 #define CPP_SPEC "%{pthread:-D_REENTRANT}"
  36
  37 #define LINUX_TARGET_LINK_SPEC  "%{h*}          \
  38    %{static:-Bstatic}                           \
  39    %{shared:-shared}                            \
  40    %{symbolic:-Bsymbolic}                       \
  41    %{!static:%{!static-pie:                     \
  42      %{rdynamic:-export-dynamic}                \
  43      %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}} \
  44    %{static-pie:-Bstatic -pie --no-dynamic-linker -z text} \
  45    -X                                           \
  46    %{mbig-endian:-EB} %{mlittle-endian:-EL}     \
  47    -maarch64linux%{mabi=ilp32:32}%{mbig-endian:b}"
  48
  49 #if TARGET_FIX_ERR_A53_835769_DEFAULT
  50 #define CA53_ERR_835769_SPEC \
  51   " %{!mno-fix-cortex-a53-835769:--fix-cortex-a53-835769}"
  52 #else
  53 #define CA53_ERR_835769_SPEC \
  54   " %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}"
  55 #endif
  56
  57 #if TARGET_FIX_ERR_A53_843419_DEFAULT
  58 #define CA53_ERR_843419_SPEC \
  59   " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}"
  60 #else
  61 #define CA53_ERR_843419_SPEC \
  62   " %{mfix-cortex-a53-843419:--fix-cortex-a53-843419}"
  63 #endif
  64
  65 #define LINK_SPEC LINUX_TARGET_LINK_SPEC \
  66                   CA53_ERR_835769_SPEC \
  67                   CA53_ERR_843419_SPEC
  68
  69 #define GNU_USER_TARGET_MATHFILE_SPEC \
  70   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
  71
  72 #undef ENDFILE_SPEC
  73 #define ENDFILE_SPEC   \
  74   GNU_USER_TARGET_MATHFILE_SPEC " " \
  75   GNU_USER_TARGET_ENDFILE_SPEC
  76
  77 #define TARGET_OS_CPP_BUILTINS()                \
  78   do                                            \
  79     {                                           \
  80         GNU_USER_TARGET_OS_CPP_BUILTINS();      \
  81     }                                           \
  82   while (0)
  83
  84 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
  85
  86 /* Uninitialized common symbols in non-PIE executables, even with
  87    strong definitions in dependent shared libraries, will resolve
  88    to COPY relocated symbol in the executable.  See PR65780.  */
  89 #undef TARGET_BINDS_LOCAL_P
  90 #define TARGET_BINDS_LOCAL_P default_binds_local_p_2
  91
  92 /* Define this to be nonzero if static stack checking is supported.  */
  93 #define STACK_CHECK_STATIC_BUILTIN 1
  94
  95 #endif  /* GCC_AARCH64_LINUX_H */