2012-04-17 03:29:00 +00:00
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/* Special .init and .fini section support for HPPA
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2015-01-02 16:28:19 +00:00
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Copyright (C) 2000-2015 Free Software Foundation, Inc.
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2012-04-17 03:29:00 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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In addition to the permissions in the GNU Lesser General Public
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License, the Free Software Foundation gives you unlimited
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permission to link the compiled version of this file with other
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programs, and to distribute those programs without any restriction
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coming from the use of this file. (The GNU Lesser General Public
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License restrictions do apply in other respects; for example, they
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cover modification of the file, and distribution when not linked
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into another program.)
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Note that people who make modified versions of this file are not
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obligated to grant this special exception for their modified
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versions; it is their choice whether to do so. The GNU Lesser
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General Public License gives permission to release a modified
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version without this exception; this exception also makes it
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possible to release a modified version which carries forward this
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exception.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* crtn.S puts function epilogues in the .init and .fini sections
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corresponding to the prologues in crti.S. */
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/* Note that we cannot have a weak undefined __gmon_start__, because
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that would require this to be PIC, and the linker is currently not
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able to generate a proper procedure descriptor for _init. Sad but
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true. Anyway, HPPA is one of those horrible architectures where
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making the comparison and indirect call is quite expensive (see the
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comment in sysdeps/generic/initfini.c). */
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.text
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.align 4
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.weak __gmon_start__
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.type __gmon_start__,@function
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__gmon_start__:
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.proc
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.callinfo
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.entry
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bv,n %r0(%r2)
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.exit
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.procend
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/* Here is the tail end of _init. We put __gmon_start before this so
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that the assembler creates the .PARISC.unwind section for us, ie.
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with the right attributes. */
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.section .init, "ax", @progbits
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ldw -84(%sp),%rp
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copy %r4,%r19
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bv %r0(%rp)
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_end_init:
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ldwm -64(%sp),%r4
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/* Our very own unwind info, because the assembler can't handle
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functions split into two or more pieces. */
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.section .PARISC.unwind
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.extern _init
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.word _init, _end_init
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.byte 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
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/* Here is the tail end of _fini. */
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.section .fini, "ax", @progbits
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ldw -84(%sp),%rp
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copy %r4,%r19
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bv %r0(%rp)
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_end_fini:
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ldwm -64(%sp),%r4
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.section .PARISC.unwind
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.extern _fini
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.word _fini, _end_fini
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.byte 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
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