gcc/config/frv/linux.h

   1 /* Target macros for the FRV Linux port of GCC.
   2    Copyright (C) 1999-2014 Free Software Foundation, Inc.
   3    Contributed by Red Hat Inc.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 3, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    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 #ifndef __FRV_LINUX_H__
  22 #define __FRV_LINUX_H__
  23
  24 #undef SUBTARGET_DRIVER_SELF_SPECS
  25 #define SUBTARGET_DRIVER_SELF_SPECS \
  26   "%{!mno-fdpic:-mfdpic}",
  27
  28 #undef STARTFILE_SPEC
  29 #define STARTFILE_SPEC \
  30   "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
  31    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
  32
  33 #undef ENDFILE_SPEC
  34 #define ENDFILE_SPEC \
  35   "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
  36
  37 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  38
  39 #undef LINK_SPEC
  40 #define LINK_SPEC "\
  41   %{mfdpic: -m elf32frvfd -z text} %{shared} %{pie} \
  42   %{!shared: %{!static: \
  43    %{rdynamic:-export-dynamic} \
  44    -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
  45    %{static}}"
  46
  47 /* Support for compile-time default CPU.  */
  48 #define OPTION_DEFAULT_SPECS \
  49   {"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }
  50
  51 /* Define OS-specific predefined preprocessor macros.  */
  52 #define TARGET_OS_CPP_BUILTINS()        \
  53   do {                                  \
  54     builtin_define ("__gnu_linux__");   \
  55     builtin_define_std ("linux");       \
  56     builtin_define_std ("unix");        \
  57     builtin_assert ("system=linux");    \
  58   } while (0)
  59
  60 #define HAS_INIT_SECTION 1
  61 #define INIT_SECTION_ASM_OP     "\t.section .init,\"ax\""
  62 #define FINI_SECTION_ASM_OP     "\t.section .fini,\"ax\""
  63
  64 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)      \
  65 asm (SECTION_OP); \
  66 asm ("ldi.p @(fp,4), gr15 ! call " #FUNC); \
  67 asm (TEXT_SECTION_ASM_OP);
  68
  69 #undef INVOKE__main
  70
  71 #undef Twrite
  72 #define Twrite __write
  73
  74 #endif /* __FRV_LINUX_H__ */