gcc/config/arm/t-arm-elf

   1 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   2 # 2008, 2010, 2011 Free Software Foundation, Inc.
   3 #
   4 # This file is part of GCC.
   5 #
   6 # GCC is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3, or (at your option)
   9 # any later version.
  10 #
  11 # GCC is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with GCC; see the file COPYING3.  If not see
  18 # <http://www.gnu.org/licenses/>.
  19
  20 # For most CPUs we have an assembly soft-float implementations.
  21 # However this is not true for ARMv6M.  Here we want to use the soft-fp C
  22 # implementation.  The soft-fp code is only build for ARMv6M.  This pulls
  23 # in the asm implementation for other CPUs.
  24 LIB1ASMFUNCS += _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func \
  25         _call_via_rX _interwork_call_via_rX \
  26         _lshrdi3 _ashrdi3 _ashldi3 \
  27         _arm_negdf2 _arm_addsubdf3 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
  28         _arm_fixdfsi _arm_fixunsdfsi \
  29         _arm_truncdfsf2 _arm_negsf2 _arm_addsubsf3 _arm_muldivsf3 \
  30         _arm_cmpsf2 _arm_unordsf2 _arm_fixsfsi _arm_fixunssfsi \
  31         _arm_floatdidf _arm_floatdisf _arm_floatundidf _arm_floatundisf \
  32         _clzsi2 _clzdi2
  33
  34 MULTILIB_OPTIONS     = marm/mthumb
  35 MULTILIB_DIRNAMES    = arm thumb
  36 MULTILIB_EXCEPTIONS  =
  37 MULTILIB_MATCHES     =
  38
  39 #MULTILIB_OPTIONS     += mcpu=fa526/mcpu=fa626/mcpu=fa606te/mcpu=fa626te/mcpu=fmp626/mcpu=fa726te
  40 #MULTILIB_DIRNAMES    += fa526 fa626 fa606te fa626te fmp626 fa726te
  41 #MULTILIB_EXCEPTIONS  += *mthumb*/*mcpu=fa526 *mthumb*/*mcpu=fa626
  42
  43 #MULTILIB_OPTIONS      += march=armv7
  44 #MULTILIB_DIRNAMES     += thumb2
  45 #MULTILIB_EXCEPTIONS   += march=armv7* marm/*march=armv7*
  46 #MULTILIB_MATCHES      += march?armv7=march?armv7-a
  47 #MULTILIB_MATCHES      += march?armv7=march?armv7-r
  48 #MULTILIB_MATCHES      += march?armv7=march?armv7-m
  49 #MULTILIB_MATCHES      += march?armv7=mcpu?cortex-a8
  50 #MULTILIB_MATCHES      += march?armv7=mcpu?cortex-r4
  51 #MULTILIB_MATCHES      += march?armv7=mcpu?cortex-m3
  52
  53 # Not quite true.  We can support hard-vfp calling in Thumb2, but how do we
  54 # express that here?  Also, we really need architecture v5e or later
  55 # (mcrr etc).
  56 MULTILIB_OPTIONS       += mfloat-abi=hard
  57 MULTILIB_DIRNAMES      += fpu
  58 MULTILIB_EXCEPTIONS    += *mthumb/*mfloat-abi=hard*
  59 #MULTILIB_EXCEPTIONS    += *mcpu=fa526/*mfloat-abi=hard*
  60 #MULTILIB_EXCEPTIONS    += *mcpu=fa626/*mfloat-abi=hard*
  61
  62 # MULTILIB_OPTIONS    += mcpu=ep9312
  63 # MULTILIB_DIRNAMES   += ep9312
  64 # MULTILIB_EXCEPTIONS += *mthumb/*mcpu=ep9312*
  65 #
  66 # MULTILIB_OPTIONS     += mlittle-endian/mbig-endian
  67 # MULTILIB_DIRNAMES    += le be
  68 # MULTILIB_MATCHES     += mbig-endian=mbe mlittle-endian=mle
  69 #
  70 # MULTILIB_OPTIONS    += mfloat-abi=hard/mfloat-abi=soft
  71 # MULTILIB_DIRNAMES   += fpu soft
  72 # MULTILIB_EXCEPTIONS += *mthumb/*mfloat-abi=hard*
  73 #
  74 # MULTILIB_OPTIONS    += mno-thumb-interwork/mthumb-interwork
  75 # MULTILIB_DIRNAMES   += normal interwork
  76 #
  77 # MULTILIB_OPTIONS    += fno-leading-underscore/fleading-underscore
  78 # MULTILIB_DIRNAMES   += elf under
  79 #
  80 # MULTILIB_OPTIONS    += mcpu=arm7
  81 # MULTILIB_DIRNAMES   += nofmult
  82 # MULTILIB_EXCEPTIONS += *mthumb*/*mcpu=arm7*
  83 # # Note: the multilib_exceptions matches both -mthumb and
  84 # # -mthumb-interwork
  85 # #
  86 # # We have to match all the arm cpu variants which do not have the
  87 # # multiply instruction and treat them as if the user had specified
  88 # # -mcpu=arm7.  Note that in the following the ? is interpreted as
  89 # # an = for the purposes of matching command line options.
  90 # # FIXME: There ought to be a better way to do this.
  91 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm7d
  92 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm7di
  93 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm70
  94 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm700
  95 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm700i
  96 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm710
  97 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm710c
  98 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm7100
  99 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm7500
 100 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm7500fe
 101 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm6
 102 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm60
 103 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm600
 104 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm610
 105 # MULTILIB_MATCHES    += mcpu?arm7=mcpu?arm620
 106
 107 LIBGCC = stmp-multilib
 108 INSTALL_LIBGCC = install-multilib
 109
 110 # Currently there is a bug somewhere in GCC's alias analysis
 111 # or scheduling code that is breaking _fpmul_parts in fp-bit.c.
 112 # Disabling function inlining is a workaround for this problem.
 113 TARGET_LIBGCC2_CFLAGS = -fno-inline