1  /* Xtensa uClinux configuration.
       2     Derived from the configuration for GCC for Intel i386 running Linux.
       3     Copyright (C) 2001-2023 Free Software Foundation, Inc.
       4  
       5  This file is part of GCC.
       6  
       7  GCC is free software; you can redistribute it and/or modify it under
       8  the terms of the GNU General Public License as published by the Free
       9  Software Foundation; either version 3, or (at your option) any later
      10  version.
      11  
      12  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      13  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      14  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      15  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  #undef TARGET_OS_CPP_BUILTINS
      22  #define TARGET_OS_CPP_BUILTINS()				\
      23    do								\
      24      {								\
      25        GNU_USER_TARGET_OS_CPP_BUILTINS ();			\
      26        builtin_define ("__uClinux__");				\
      27      }								\
      28    while (0)
      29  
      30  #undef SUBTARGET_CPP_SPEC
      31  #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
      32  
      33  #undef SIZE_TYPE
      34  #define SIZE_TYPE "unsigned int"
      35  
      36  #undef PTRDIFF_TYPE
      37  #define PTRDIFF_TYPE "int"
      38  
      39  #undef WCHAR_TYPE
      40  #define WCHAR_TYPE "long int"
      41  
      42  #undef WCHAR_TYPE_SIZE
      43  #define WCHAR_TYPE_SIZE 32
      44  
      45  #undef ASM_SPEC
      46  #define ASM_SPEC \
      47   "%{mtext-section-literals:--text-section-literals} \
      48    %{mno-text-section-literals:--no-text-section-literals} \
      49    %{mtarget-align:--target-align} \
      50    %{mno-target-align:--no-target-align} \
      51    %{mlongcalls:--longcalls} \
      52    %{mno-longcalls:--no-longcalls} \
      53    %{mauto-litpools:--auto-litpools} \
      54    %{mno-auto-litpools:--no-auto-litpools} \
      55    %{mabi=windowed:--abi-windowed} \
      56    %{mabi=call0:--abi-call0}"
      57  
      58  #undef LINK_SPEC
      59  #define LINK_SPEC \
      60   "%{!no-elf2flt:%{!elf2flt*:-elf2flt}} \
      61    %{mabi=windowed:--abi-windowed} \
      62    %{mabi=call0:--abi-call0}"
      63  
      64  #undef LOCAL_LABEL_PREFIX
      65  #define LOCAL_LABEL_PREFIX	"."
      66  
      67  /* Don't enable "-fpic" for Xtensa uclinux.  */
      68  #define XTENSA_ALWAYS_PIC 0
      69  
      70  #undef TARGET_LIBC_HAS_FUNCTION
      71  #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
      72  
      73  #undef DEBUGGER_REGNO