gcc/config/arm/semi.h

   1 /* Definitions of target machine for GNU compiler.  ARM on semi-hosted platform
   2    Copyright (C) 1994-2018 Free Software Foundation, Inc.
   3    Contributed by Richard Earnshaw (richard.earnshaw@arm.com)
   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 #define STARTFILE_SPEC  "crt0.o%s"
  22
  23 #ifndef LIB_SPEC
  24 #define LIB_SPEC "-lc"
  25 #endif
  26
  27 #ifndef SUBTARGET_CPP_SPEC
  28 #define SUBTARGET_CPP_SPEC "-D__semi__"
  29 #endif
  30
  31 #ifndef LINK_SPEC
  32 #define LINK_SPEC "%{mbig-endian:-EB} -X"
  33 #endif
  34
  35 #ifndef TARGET_DEFAULT_FLOAT_ABI
  36 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
  37 #endif
  38
  39 #ifndef TARGET_DEFAULT
  40 #define TARGET_DEFAULT (MASK_APCS_FRAME)
  41 #endif
  42
  43 #ifndef SUBTARGET_EXTRA_SPECS
  44 #define SUBTARGET_EXTRA_SPECS \
  45   { "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC },
  46 #endif
  47
  48 #ifndef SUBTARGET_EXTRA_ASM_SPEC
  49 #define SUBTARGET_EXTRA_ASM_SPEC ""
  50 #endif
  51
  52 /* The compiler supports PIC code generation, even though the binutils
  53    may not.  If we are asked to compile position independent code, we
  54    always pass -k to the assembler.  If it doesn't recognize it, then
  55    it will barf, which probably means that it doesn't know how to
  56    assemble PIC code.  This is what we want, since otherwise tools
  57    may incorrectly assume we support PIC compilation even if the
  58    binutils can't.  */
  59 #ifndef ASM_SPEC
  60 #define ASM_SPEC "\
  61 %{" FPIE_OR_FPIC_SPEC ": -k} \
  62 %{mbig-endian:-EB} \
  63 %(arm_cpu_spec) \
  64 %{mapcs-float:-mfloat} \
  65 %{mfloat-abi=*} %{mfpu=*} \
  66 %{mthumb-interwork:-mthumb-interwork} \
  67 %(subtarget_extra_asm_spec)"
  68 #endif