glibc/sysdeps/ia64/elf/initfini.c
Ulrich Drepper ed80b9ee77 Update.
2000-07-31  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/ia64/elf/initfini.c: Kill dummy section since align and
	endp statements have already been added.

2000-04-18  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Include
	<sysdeps/ia64/sysdep.h>.

	* sysdeps/ia64/_mcount.S: New file.

	* sysdeps/ia64/elf/initfini.c (_init): Preserve gp around call to
	__gmon_start__.  Fix up extraneous whitespace.

2000-01-12  H.J. Lu  <hjl@gnu.org>

	* sysdeps/ia64/elf/initfini.c: New file.

2000-07-31  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/unix/sysv/linux/ia64/clone.S: Add stop bit to avoid WAW
	dependency between branch and ar.pfs write.
2000-08-01 03:16:27 +00:00

117 lines
3.0 KiB
C

/* Special .init and .fini section support for ia64.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
In addition to the permissions in the GNU Library General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The Library General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
The GNU C Library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This file is compiled into assembly code which is then munged by a sed
script into two files: crti.s and crtn.s.
* crti.s puts a function prologue at the beginning of the
.init and .fini sections and defines global symbols for
those addresses, so they can be called as functions.
* crtn.s puts the corresponding function epilogues
in the .init and .fini sections. */
__asm__ ("
#include \"defs.h\"
/*@HEADER_ENDS*/
/*@_init_PROLOG_BEGINS*/
.section .init
.align 16
.global _init#
.proc _init#
_init:
alloc r34 = ar.pfs, 0, 3, 0, 0
mov r32 = r12
mov r33 = b0
adds r12 = -16, r12
addl r14 = @ltoff(@fptr(__gmon_start__#)), gp
;;
ld8 r15 = [r14]
;;
cmp.eq p6, p7 = 0, r15
(p6) br.cond.dptk .L5
/* we could use r35 to save gp, but we use the stack since that's what
* all the other init routines will do --davidm 00/04/05 */
st8 [r12] = gp, -16
br.call.sptk.many b0 = __gmon_start__# ;;
adds r12 = 16, r12
;;
ld8 gp = [r12]
;;
.L5:
.align 16
.endp _init#
/*@_init_PROLOG_ENDS*/
/*@_init_EPILOG_BEGINS*/
.section .init
.regstk 0,2,0,0
mov r12 = r32
mov ar.pfs = r34
mov b0 = r33
br.ret.sptk.many b0
.endp _init#
/*@_init_EPILOG_ENDS*/
/*@_fini_PROLOG_BEGINS*/
.section .fini
.align 16
.global _fini#
.proc _fini#
_fini:
alloc r34 = ar.pfs, 0, 3, 0, 0
mov r32 = r12
mov r33 = b0
adds r12 = -16, r12
;;
.align 16
.endp _fini#
/*@_fini_PROLOG_ENDS*/
br.call.sptk.many b0 = i_am_not_a_leaf# ;;
;;
/*@_fini_EPILOG_BEGINS*/
.section .fini
mov r12 = r32
mov ar.pfs = r34
mov b0 = r33
br.ret.sptk.many b0
.endp _fini#
/*@_fini_EPILOG_ENDS*/
/*@TRAILER_BEGINS*/
.weak __gmon_start__#
");