gcc/config/frv/linux.h

/* Target macros for the FRV Linux port of GCC.
   Copyright (C) 1999-2021 Free Software Foundation, Inc.
   Contributed by Red Hat Inc.

   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.

   You should have received a copy of the GNU General Public License
   along with GCC; see the file COPYING3.  If not see
   <http://www.gnu.org/licenses/>.  */

#ifndef __FRV_LINUX_H__
#define __FRV_LINUX_H__

#undef SUBTARGET_DRIVER_SELF_SPECS
#define SUBTARGET_DRIVER_SELF_SPECS \
  "%{!mno-fdpic:-mfdpic}",

#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
  "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"

#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"

#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"

#undef LINK_SPEC
#define LINK_SPEC "\
  %{mfdpic: -m elf32frvfd -z text} %{shared} %{pie} \
  %{!shared: %{!static: \
   %{rdynamic:-export-dynamic} \
   -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
   %{static}}"

/* Support for compile-time default CPU.  */
#define OPTION_DEFAULT_SPECS \
  {"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }

/* Define OS-specific predefined preprocessor macros.  */
#define TARGET_OS_CPP_BUILTINS()	\
  do {					\
    builtin_define ("__gnu_linux__");	\
    builtin_define_std ("linux");	\
    builtin_define_std ("unix");	\
    builtin_assert ("system=linux");	\
  } while (0)

#define HAS_INIT_SECTION 1
#define INIT_SECTION_ASM_OP	"\t.section .init,\"ax\""
#define FINI_SECTION_ASM_OP	"\t.section .fini,\"ax\""

#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
asm (SECTION_OP); \
asm ("ldi.p @(fp,4), gr15 ! call " #FUNC); \
asm (TEXT_SECTION_ASM_OP);

#undef INVOKE__main

#undef Twrite
#define Twrite __write

#endif /* __FRV_LINUX_H__ */