1  /* Definitions of target machine of Andes NDS32 cpu for GNU compiler
       2     Copyright (C) 2012-2023 Free Software Foundation, Inc.
       3     Contributed by Andes Technology Corporation.
       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
       9     by the Free Software Foundation; either version 3, or (at your
      10     option) any later version.
      11  
      12     GCC is distributed in the hope that it will be useful, but WITHOUT
      13     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      14     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
      15     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  
      22  /* ------------------------------------------------------------------------ */
      23  
      24  #define TARGET_LINUX_ABI 1
      25  
      26  #undef  SIZE_TYPE
      27  #define SIZE_TYPE "unsigned int"
      28  
      29  #undef  PTRDIFF_TYPE
      30  #define PTRDIFF_TYPE "int"
      31  
      32  #define TARGET_OS_CPP_BUILTINS()                \
      33    do                                            \
      34      {                                           \
      35        GNU_USER_TARGET_OS_CPP_BUILTINS();           \
      36      }                                           \
      37    while (0)
      38  
      39  #ifdef TARGET_BIG_ENDIAN_DEFAULT
      40  #define LD_SO_ENDIAN_SPEC "%{mlittle-endian:le}%{!mlittle-endian:be}"
      41  #else
      42  #define LD_SO_ENDIAN_SPEC "%{mbig-endian:be}%{!mbig-endian:le}"
      43  #endif
      44  
      45  /* Record arch version in TARGET_ARCH_DEFAULT.
      46     0 means soft ABI;
      47     1 means hard ABI and using full floating-point instruction;
      48     2 means hard ABI and only using single-precision floating-point
      49     instruction.  */
      50  #if TARGET_ARCH_DEFAULT
      51  #define LD_SO_ABI_SPEC "%{!mabi=2:f}"
      52  #else
      53  #define LD_SO_ABI_SPEC "%{mabi=2fp+:f}"
      54  #endif
      55  
      56  #define GLIBC_DYNAMIC_LINKER \
      57    "/lib/ld-linux-nds32" LD_SO_ENDIAN_SPEC LD_SO_ABI_SPEC ".so.1"
      58  
      59  /* In the configure stage we may use options --enable-default-relax,
      60     --enable-Os-default-ifc and --enable-Os-default-ex9.  They effect
      61     the default spec of passing --relax, --mifc, and --mex9 to linker.
      62     We use NDS32_RELAX_SPEC, NDS32_IFC_SPEC, and NDS32_EX9_SPEC
      63     so that we can customize them conveniently.  */
      64  #define LINK_SPEC \
      65   " %{G*}" \
      66   " %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
      67   " %{shared:-shared} \
      68    %{!shared: \
      69      %{!static: \
      70        %{rdynamic:-export-dynamic} \
      71        -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
      72      %{static:-static}}" \
      73    NDS32_RELAX_SPEC
      74  
      75  #define LINK_PIE_SPEC "%{pie:%{!fno-pie:%{!fno-PIE:%{!static:-pie}}}} "
      76  
      77  #define CPP_SPEC "%{pthread:-D_REENTRANT}"
      78  
      79  /* The SYNC operations are implemented as library functions, not
      80     INSN patterns.  As a result, the HAVE defines for the patterns are
      81     not defined.  We need to define them to generate the corresponding
      82     __GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
      83     defines.
      84     Ref: https://sourceware.org/ml/libc-alpha/2014-09/msg00322.html  */
      85  #define HAVE_sync_compare_and_swapqi 1
      86  #define HAVE_sync_compare_and_swaphi 1
      87  #define HAVE_sync_compare_and_swapsi 1