gcc/config/fuchsia.h

/* Base configuration file for all Fuchsia targets.
   Copyright (C) 2017-2021 Free Software Foundation, Inc.
   Contributed by Google.

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/>.  */

/* Common Fuchsia configuration.  */

#undef  STARTFILE_SPEC
#define STARTFILE_SPEC "%{!shared: crt1%O%s} crtbegin%O%s"

#undef  ENDFILE_SPEC
#define ENDFILE_SPEC "crtend%O%s"

/* When neither pic nor pie has been specified, use PIE.  */
#undef  CC1_SPEC
#define CC1_SPEC "%{!fno-pic:%{!fno-PIC:%{!fpic:%{!fPIC:" \
                   "%{!fno-pie:%{!fno-PIE:%{!fpie:%{!fPIE: -fPIE}}}}}}}}"

#undef  LIB_SPEC
#define LIB_SPEC "--start-group" \
		 " -lmxio -lmagenta -lc -llaunchpad" \
		 "%{!static: -lgcc_s}" \
		 " --end-group"

#undef  LINK_SPEC
#define LINK_SPEC "-z max-page-size=4096" \
		  " -z combreloc" \
		  " -z relro" \
		  " -z now" \
		  " -z text" \
		  "%{!hash-style: --hash-style=gnu}" \
		  "%{!no-eh-frame-hdr: --eh-frame-hdr}" \
		  "%{!no-build-id: --build-id}" \
		  "%{shared: -shared}" \
		  "%{!shared:%{!static:%{!dynamic-linker: -dynamic-linker=ld.so.1}}}"

/* We are using MUSL as our libc.  */
#undef  OPTION_MUSL
#define OPTION_MUSL 1

#ifndef TARGET_SUB_OS_CPP_BUILTINS
#define TARGET_SUB_OS_CPP_BUILTINS()
#endif

#undef  TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS()		\
  do						\
    {						\
      builtin_define ("__fuchsia__");		\
      TARGET_SUB_OS_CPP_BUILTINS();		\
    }						\
  while (false)