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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [config/] [arm/] [crtn.asm] - Blame information for rev 827

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#   Copyright (C) 2001, 2004 Free Software Foundation, Inc.
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#   Written By Nick Clifton
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2, or (at your option) any
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# later version.
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#
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# In addition to the permissions in the GNU General Public License, the
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# Free Software Foundation gives you unlimited permission to link the
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# compiled version of this file with other programs, and to distribute
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# those programs without any restriction coming from the use of this
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# file.  (The General Public License restrictions do apply in other
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# respects; for example, they cover modification of the file, and
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# distribution when not linked into another program.)
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING.  If not, write to
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# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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#
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#    As a special exception, if you link this library with files
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#    compiled with GCC to produce an executable, this does not cause
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#    the resulting executable to be covered by the GNU General Public License.
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#    This exception does not however invalidate any other reasons why
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#    the executable file might be covered by the GNU General Public License.
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#
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# This file just makes sure that the .fini and .init sections do in
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# fact return.  Users may put any desired instructions in those sections.
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# This file is the last thing linked into any executable.
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        # Note - this macro is complemented by the FUNC_START macro
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        # in crti.asm.  If you change this macro you must also change
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        # that macro match.
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        #
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        # Note - we do not try any fancy optimizations of the return
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        # sequences here, it is just not worth it.  Instead keep things
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        # simple.  Restore all the save resgisters, including the link
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        # register and then perform the correct function return instruction.
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        # We also save/restore r3 to ensure stack alignment.
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.macro FUNC_END
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#ifdef __thumb__
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        .thumb
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        pop     {r3, r4, r5, r6, r7}
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        pop     {r3}
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        mov     lr, r3
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#else
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        .arm
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        sub     sp, fp, #40
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        ldmfd   sp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr}
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#endif
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#if defined __THUMB_INTERWORK__ || defined __thumb__
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        bx      lr
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#else
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        mov     pc, lr
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#endif
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.endm
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        .file           "crtn.asm"
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        .section        ".init"
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        ;;
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        FUNC_END
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        .section        ".fini"
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        ;;
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        FUNC_END
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# end of crtn.asm

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