/* PLT trampolines.  s390 version.   Copyright (C) 2005 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 Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   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   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  *//* The PLT stubs will call _dl_runtime_resolve/_dl_runtime_profile * with the following linkage: *   r2 - r6 : parameter registers *   f0, f2, f4, f6 : floating point parameter registers *   24(r15), 28(r15) : PLT arguments PLT1, PLT2 *   96(r15) : additional stack parameters * The normal clobber rules for function calls apply: *   r0 - r5 : call clobbered *   r6 - r13 :	 call saved *   r14 : return address (call clobbered) *   r15 : stack pointer (call saved) *   f1, f3, f5, f7 : call saved *   f0 - f3, f5, f7 - f15 : call clobbered */#include <sysdep.h>	.text	.globl _dl_runtime_resolve	.type _dl_runtime_resolve, @function	cfi_startproc	.align 16_dl_runtime_resolve:	stmg   2,5,64(15)	# save registers	stg    14,96(15)	lgr    0,15		# create stack frame	aghi   15,-160	cfi_adjust_cfa_offset (160)	stg    0,0(15)	lmg    2,3,208(15)	# load args saved by PLT	brasl  14,_dl_fixup	# call fixup	lgr    1,2		# function addr returned in r2	aghi   15,160		# remove stack frame	cfi_adjust_cfa_offset (-160)	lg     14,96(15)	# restore registers	lmg    2,5,64(15)	br     1	cfi_endproc	.size _dl_runtime_resolve, .-_dl_runtime_resolve#ifndef PROF	.globl _dl_runtime_profile	.type _dl_runtime_profile, @function	cfi_startproc	.align 16_dl_runtime_profile:	stmg   %r2,%r6,64(%r15)		# save registers	std    %f0,104(%r15)	std    %f2,112(%r15)	std    %f4,120(%r15)	std    %f6,128(%r15)	stg    %r6,16(%r15)	stg    %r12,24(%r15)	stg    %r14,32(%r15)	lgr    %r12,%r15		# create stack frame	cfi_def_cfa_register (12)	aghi   %r15,-160	stg    %r12,0(%r15)	lmg    %r2,%r3,48(%r12)		# load arguments saved by PLT	lgr    %r4,%r14			# return address as third parameter	la     %r5,64(%r12)		# pointer to struct La_s390_32_regs	la     %r6,40(%r12)		# long int * framesize	brasl  %r14,_dl_profile_fixup	# call resolver	lgr    %r1,%r2			# function addr returned in r2	lg     %r0,40(%r12)		# load framesize	ltgr   %r0,%r0	jnm    1f	lmg    %r2,%r6,64(%r12)	ld     %f0,104(%r12)	ld     %f2,112(%r12)	ld     %f4,120(%r12)	ld     %f6,128(%r12)	basr   %r14,%r1			# call resolved function0:	lr     %r15,%r12		# remove stack frame	cfi_def_cfa_register (15)	lg     %r14,32(%r15)		# restore registers	lg     %r12,24(%r15)	lg     %r6,16(%r15)	br     %r14	cfi_def_cfa_register (12)1:	jz     4f			# framesize == 0 ?	aghi   %r0,7			# align framesize to 8	nill   %r0,0xfff8	slgr   %r15,%r0			# make room for framesize bytes	stg    %r12,0(%r15)	la     %r2,160(%r15)	la     %r3,160(%r12)	srlg   %r0,%r0,33:	mvc    0(8,%r2),0(%r3)		# copy additional parameters	la     %r2,8(%r2)	la     %r3,8(%r3)	brctg  %r0,3b4:	lmg    %r2,%r6,64(%r12)		# load register parameters	ld     %f0,104(%r12)	ld     %f2,112(%r12)	ld     %f4,120(%r12)	ld     %f6,128(%r12)	basr   %r14,%r1			# call resolved function	stg    %r2,136(%r12)	std    %f0,144(%r12)	lmg    %r2,%r3,48(%r12)		# load arguments saved by PLT	la     %r4,32(%r12)		# pointer to struct La_s390_32_regs	la     %r5,72(%r12)		# pointer to struct La_s390_32_retval	brasl  %r14,_dl_call_pltexit	j      0b	cfi_endproc	.size _dl_runtime_profile, .-_dl_runtime_profile#endif