libgcc/config/arm/bpabi-lib.h

/* Configuration file for ARM BPABI targets, library renames.
   Copyright (C) 2010-2021 Free Software Foundation, Inc.
   Contributed by CodeSourcery, LLC   

   This file is part of GCC.

   GCC is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published
   by the Free Software Foundation; either version 3, or (at your
   option) any later version.

   GCC is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.

   Under Section 7 of GPL version 3, you are granted additional
   permissions described in the GCC Runtime Library Exception, version
   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and
   a copy of the GCC Runtime Library Exception along with this program;
   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   <http://www.gnu.org/licenses/>.  */

/* Make __aeabi_AEABI_NAME an alias for __GCC_NAME.  */
#define RENAME_LIBRARY(GCC_NAME, AEABI_NAME)		\
  typeof (__##GCC_NAME) __aeabi_##AEABI_NAME \
    __attribute__((alias ("__" #GCC_NAME)));

/* Give some libgcc functions an additional __aeabi name.  */
#ifdef L_muldi3
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul)
#endif
#ifdef L_muldi3
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul)
#endif
#ifdef L_fixdfdi
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixdfdi, d2lz) \
  extern DWtype __fixdfdi (DFtype) __attribute__((pcs("aapcs"))); \
  extern UDWtype __fixunsdfdi (DFtype) __asm__("__aeabi_d2ulz") __attribute__((pcs("aapcs")));
#endif
#ifdef L_fixunsdfdi
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfdi, d2ulz) \
  extern UDWtype __fixunsdfdi (DFtype) __attribute__((pcs("aapcs")));
#endif
#ifdef L_fixsfdi
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixsfdi, f2lz) \
  extern DWtype __fixsfdi (SFtype) __attribute__((pcs("aapcs"))); \
  extern UDWtype __fixunssfdi (SFtype) __asm__("__aeabi_f2ulz") __attribute__((pcs("aapcs")));
#endif
#ifdef L_fixunssfdi
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfdi, f2ulz) \
  extern UDWtype __fixunssfdi (SFtype) __attribute__((pcs("aapcs")));
#endif
#ifdef L_floatdidf
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdidf, l2d)
#endif
#ifdef L_floatdisf
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdisf, l2f)
#endif

/* These renames are needed on ARMv6M.  Other targets get them from
   assembly routines.  */
#ifdef L_fixunsdfsi
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfsi, d2uiz)
#endif
#ifdef L_fixunssfsi
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfsi, f2uiz)
#endif
#ifdef L_floatundidf
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundidf, ul2d)
#endif
#ifdef L_floatundisf
#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundisf, ul2f)
#endif

/* For ARM bpabi, we only want to use a "__gnu_" prefix for the fixed-point
   helper functions - not everything in libgcc - in the interests of
   maintaining backward compatibility.  */
#define LIBGCC2_FIXEDBIT_GNU_PREFIX

#if (!defined(__ARM_ARCH_EXT_IDIV__))
# define TARGET_HAS_NO_HW_DIVIDE
#endif