| # (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 |
| |
| # To ensure nothing is linked at address 0, provide a dummy |
| # .interrupt section. This is in crtn.S to make sure any |
| # user-provided real .interrupt section will get linked |
| # in front of this dummy. |
| .section ".interrupt","ax" |
| .align 2 |
| heq $0,$0 |
| |
| # end of crtn.S |