gcc/config/loongarch/gnu-user.h

   1 /* Definitions for LoongArch systems using GNU (glibc-based) userspace,
   2    or other userspace with libc derived from glibc.
   3    Copyright (C) 2021-2024 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
   8 it 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,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU 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 /* Define the size of the wide character type.  */
  22 #undef WCHAR_TYPE
  23 #define WCHAR_TYPE "int"
  24
  25 #undef WCHAR_TYPE_SIZE
  26 #define WCHAR_TYPE_SIZE 32
  27
  28
  29 /* GNU-specific SPEC definitions.  */
  30 #define GNU_USER_LINK_EMULATION "elf" ABI_GRLEN_SPEC "loongarch"
  31
  32 #undef GLIBC_DYNAMIC_LINKER
  33 #define GLIBC_DYNAMIC_LINKER \
  34   "/lib" ABI_GRLEN_SPEC "/ld-linux-loongarch-" ABI_SPEC ".so.1"
  35
  36 #define MUSL_ABI_SPEC \
  37   "%{mabi=lp64d:}" \
  38   "%{mabi=lp64f:-sp}" \
  39   "%{mabi=lp64s:-sf}"
  40
  41 #undef MUSL_DYNAMIC_LINKER
  42 #define MUSL_DYNAMIC_LINKER \
  43   "/lib/ld-musl-loongarch" ABI_GRLEN_SPEC MUSL_ABI_SPEC ".so.1"
  44
  45 #undef GNU_USER_TARGET_LINK_SPEC
  46 #define GNU_USER_TARGET_LINK_SPEC \
  47   "%{G*} %{shared} -m " GNU_USER_LINK_EMULATION \
  48   "%{!shared: %{static} " \
  49   "%{!static: %{!static-pie: %{rdynamic:-export-dynamic} " \
  50   "-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} " \
  51   "%{static-pie: -static -pie --no-dynamic-linker -z text}}" \
  52   "%{mno-relax: --no-relax}"
  53
  54
  55 /* Similar to standard Linux, but adding -ffast-math support.  */
  56 #undef GNU_USER_TARGET_MATHFILE_SPEC
  57 #define GNU_USER_TARGET_MATHFILE_SPEC \
  58   "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}}"
  59
  60 #undef LIB_SPEC
  61 #define LIB_SPEC GNU_USER_TARGET_LIB_SPEC
  62
  63 #undef LINK_SPEC
  64 #define LINK_SPEC GNU_USER_TARGET_LINK_SPEC
  65
  66 #undef ENDFILE_SPEC
  67 #define ENDFILE_SPEC \
  68   GNU_USER_TARGET_MATHFILE_SPEC " " \
  69   GNU_USER_TARGET_ENDFILE_SPEC
  70
  71 #undef SUBTARGET_CPP_SPEC
  72 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
  73
  74 /* A standard GNU/Linux mapping.  On most targets, it is included in
  75    CC1_SPEC itself by config/linux.h, but loongarch.h overrides CC1_SPEC
  76    and provides this hook instead.  */
  77 #undef SUBTARGET_CC1_SPEC
  78 #define SUBTARGET_CC1_SPEC GNU_USER_TARGET_CC1_SPEC
  79
  80 #define TARGET_OS_CPP_BUILTINS() \
  81   do \
  82     { \
  83       GNU_USER_TARGET_OS_CPP_BUILTINS (); \
  84       /* The GNU C++ standard library requires this.  */ \
  85       if (c_dialect_cxx ()) \
  86        builtin_define ("_GNU_SOURCE"); \
  87     } \
  88   while (0)