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      1 /* Machine description for AArch64 architecture.
      2    Copyright (C) 2009-2022 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 
     50 #define LINK_SPEC LINUX_TARGET_LINK_SPEC AARCH64_ERRATA_LINK_SPEC
     51 
     52 #define GNU_USER_TARGET_MATHFILE_SPEC \
     53   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
     54 
     55 #undef ENDFILE_SPEC
     56 #define ENDFILE_SPEC   \
     57   GNU_USER_TARGET_MATHFILE_SPEC " " \
     58   GNU_USER_TARGET_ENDFILE_SPEC
     59 
     60 #define TARGET_OS_CPP_BUILTINS()		\
     61   do						\
     62     {						\
     63 	GNU_USER_TARGET_OS_CPP_BUILTINS();	\
     64     }						\
     65   while (0)
     66 
     67 #define TARGET_ASM_FILE_END aarch64_file_end_indicate_exec_stack
     68 
     69 /* Uninitialized common symbols in non-PIE executables, even with
     70    strong definitions in dependent shared libraries, will resolve
     71    to COPY relocated symbol in the executable.  See PR65780.  */
     72 #undef TARGET_BINDS_LOCAL_P
     73 #define TARGET_BINDS_LOCAL_P default_binds_local_p_2
     74 
     75 /* Define this to be nonzero if static stack checking is supported.  */
     76 #define STACK_CHECK_STATIC_BUILTIN 1
     77 
     78 #endif  /* GCC_AARCH64_LINUX_H */
     79