2015-08-28 15:33:40 +00:00
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/* Copyright (C) 2013-2015 Free Software Foundation, Inc.
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2014-09-21 17:33:12 +00:00
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Contributed by Andreas Krebbel <krebbel@linux.vnet.ibm.com>
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This file is part of the GNU Transactional Memory Library (libitm).
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Libitm 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
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "asmcfi.h"
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.text
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.align 4
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.globl _ITM_beginTransaction
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.type _ITM_beginTransaction, @function
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/* _ITM_beginTransaction (int props); props -> r2 */
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_ITM_beginTransaction:
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cfi_startproc
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#ifdef __s390x__
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lgr %r3,%r15 /* backup stack pointer */
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aghi %r15,-304 /* jump buffer (144) + reg save area (160) */
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cfi_adjust_cfa_offset(304)
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stmg %r6,%r14,160(%r15)
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stg %r3,72+160(%r15) /* store the old stack pointer */
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std %f8,80+160(%r15)
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std %f9,88+160(%r15)
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std %f10,96+160(%r15)
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std %f11,104+160(%r15)
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std %f12,112+160(%r15)
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std %f13,120+160(%r15)
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std %f14,128+160(%r15)
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std %f15,136+160(%r15)
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la %r3,160(%r15) /* second argument to GTM_begin_transaction */
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brasl %r14,GTM_begin_transaction
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lg %r1,64+160(%r15)
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aghi %r15,304
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cfi_adjust_cfa_offset(-304)
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br %r1
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#else
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lr %r3,%r15 /* backup stack pointer */
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ahi %r15,-152 /* jump buffer (56) + reg save area (96) */
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cfi_adjust_cfa_offset(152)
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stm %r6,%r14,96(%r15)
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st %r3,36+96(%r15) /* store the old stack pointer */
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std %f4,40+96(%r15)
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std %f6,48+96(%r15)
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la %r3,96(%r15) /* second argument to GTM_begin_transaction */
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/* begin_transaction (uint32_t prop, const gtm_jmpbuf *jb) */
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brasl %r14,GTM_begin_transaction /* requires mzarch */
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l %r1,32+96(%r15)
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ahi %r15,152
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cfi_adjust_cfa_offset(-152)
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br %r1
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#endif
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cfi_endproc
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.size _ITM_beginTransaction, .-_ITM_beginTransaction
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.align 4
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.globl GTM_longjmp
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.type GTM_longjmp, @function
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.hidden GTM_longjmp
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/* uint32_t GTM_longjmp (uint32_t, const gtm_jmpbuf *, uint32_t) */
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GTM_longjmp:
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/* First parameter becomes the return value of
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_ITM_beginTransaction (r2).
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Third parameter is ignored for now. */
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cfi_startproc
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#ifdef __s390x__
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ld %f8,80(%r3)
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ld %f9,88(%r3)
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ld %f10,96(%r3)
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ld %f11,104(%r3)
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ld %f12,112(%r3)
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ld %f13,120(%r3)
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ld %f14,128(%r3)
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ld %f15,136(%r3)
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lmg %r6,%r15,0(%r3)
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br %r14
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#else
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ld %f4,40(%r3)
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ld %f6,48(%r3)
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lm %r6,%r15,0(%r3)
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br %r14
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#endif
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cfi_endproc
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.size GTM_longjmp, .-GTM_longjmp
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.section .note.GNU-stack, "", @progbits
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