libc/libgloss/spu/crtn.S
Jeff Johnston b81d0f0ec6 2006-12-08 Sa Liu <saliu@de.ibm.com>
* spu/exit.c (libgloss_exit): Rename from this ..
        (_exit): .. to this. Overhaul.
        (exit): Remove.
        * spu/crt0.S, spu/crti.S, spu/crtn.S: New files.
        * spu/crt0.C, spu/init.c: Remove.
        * spu/configure.in (AC_INIT): Check for crt0.S, not crt0.C.
        * spu/configure: Regenerate.
        * spu/Makefile.in (crti.o, crtn.o, crt1.o, crt2.o): New targets.
        (OBJS): Remove init.o.
        (CRTOBJS): New.
        (OUTPUTS): Add $(CRTOBJS).
2006-12-08 21:50:56 +00:00

57 lines
2.2 KiB
ArmAsm

# (C) Copyright IBM Corp. 2005, 2006
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of IBM nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# This file just makes sure that the .fini and .init sections do in
# fact return. Users may put any desired instructions in those sections.
# This file is the last thing linked into any executable.
# Note - this macro is complimented by the FUNC_START macro
# in crti.S. If you change this macro you must also change
# that macro match.
#
# Note - we do not try any fancy optimisations of the return
# sequences here, it is just not worth it. Instead keep things
# simple. The link register is restored and then the correct
# function return instruction is performed.
.macro FUNC_END
ai $sp, $sp, 32
lqd $lr, 16($sp)
bi $lr
.endm
.file "crtn.S"
.section ".init"
FUNC_END
.section ".fini"
FUNC_END
# end of crtn.S