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Add crtfastmath for AArch64. 

gcc/Changelog

2014-09-09  Marcus Shawcroft  <marcus.shawcroft@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

     * config/aarch64/aarch64-elf-raw.h (ENDFILE_SPEC): Add crtfastmath.o.
     * config/aarch64/aarch64-linux.h (GNU_USER_TARGET_MATH_ENDFILE_SPEC): Define.
      (ENDFILE_SPEC): Define and use GNU_USER_TARGET_MATH_ENDFILE_SPEC.

libgcc/Changelog

2014-09-09  Marcus Shawcroft  <marcus.shawcroft@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

    * config.host (aarch64*): Include crtfastmath and t-crtfm.
    * config/aarch64/crtfastmath.c: New file. 

Co-Authored-By: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>

From-SVN: r215086
This commit is contained in:
Marcus Shawcroft 2014-09-09 15:53:01 +00:00 committed by Ramana Radhakrishnan
parent ab7f327830
commit b677236af0
6 changed files with 66 additions and 3 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2014-09-09 Marcus Shawcroft <marcus.shawcroft@arm.com>
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
* config/aarch64/aarch64-elf-raw.h (ENDFILE_SPEC): Add crtfastmath.o.
* config/aarch64/aarch64-linux.h (GNU_USER_TARGET_MATH_ENDFILE_SPEC):
Define.
(ENDFILE_SPEC): Define and use GNU_USER_TARGET_MATH_ENDFILE_SPEC.
2014-09-09 David Malcolm <dmalcolm@redhat.com>
* rtl.h (INSN_LOCATION): Strengthen param from const_rtx to

4
gcc/config/aarch64/aarch64-elf-raw.h
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@ -23,7 +23,9 @@
#define GCC_AARCH64_ELF_RAW_H
#define STARTFILE_SPEC " crti%O%s crtbegin%O%s crt0%O%s"
#define ENDFILE_SPEC " crtend%O%s crtn%O%s"
#define ENDFILE_SPEC \
" crtend%O%s crtn%O%s " \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
#ifndef LINK_SPEC
#define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X \

8
gcc/config/aarch64/aarch64-linux.h
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@ -37,6 +37,14 @@
#define LINK_SPEC LINUX_TARGET_LINK_SPEC
#define GNU_USER_TARGET_MATHFILE_SPEC \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
GNU_USER_TARGET_MATHFILE_SPEC " " \
GNU_USER_TARGET_ENDFILE_SPEC
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \

7
libgcc/ChangeLog
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@ -1,3 +1,10 @@
2014-09-09 Marcus Shawcroft <marcus.shawcroft@arm.com>
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
* config.host (aarch64*): Include crtfastmath.o and
t-crtfm.
* config/aarch64/crtfastmath.c: New file.
2014-09-08 Trevor Saunders <tsaunders@mozilla.com>
* config.host: Remove picochip support.

6
libgcc/config.host
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@ -322,13 +322,15 @@ esac
case ${host} in
aarch64*-*-elf)
extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
extra_parts="$extra_parts crtfastmath.o"
tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp"
tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
;;
aarch64*-*-linux*)
extra_parts="$extra_parts crtfastmath.o"
md_unwind_header=aarch64/linux-unwind.h
tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp"
tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
;;
alpha*-*-linux*)
tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee t-crtfm alpha/t-linux"

36
libgcc/config/aarch64/crtfastmath.c Normal file
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@ -0,0 +1,36 @@
/*
* Copyright (C) 2014 Free Software Foundation, Inc.
*
* This file 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.
*
* This file 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.
*
* Under Section 7 of GPL version 3, you are granted additional
* permissions described in the GCC Runtime Library Exception, version
* 3.1, as published by the Free Software Foundation.
*
* You should have received a copy of the GNU General Public License and
* a copy of the GCC Runtime Library Exception along with this program;
* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
* <http://www.gnu.org/licenses/>.
*/
#define _FPU_FPCR_FZ 0x1000000
#define _FPU_SETCW(fpcr) \
{ \
__asm__ __volatile__ ("msr fpcr, %0" : : "r" (fpcr)); \
}
static void __attribute__((constructor))
set_fast_math (void)
{
/* Flush to zero, round to nearest, IEEE exceptions disabled. */
_FPU_SETCW (_FPU_FPCR_FZ);
}