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/* Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU Transactional Memory Library (libitm).
Libitm is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Libitm 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 General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "asmcfi.h"
#ifdef __arch64__
# define WORD_SIZE 8
# define MIN_FRAME_SIZE 176
# define STACK_BIAS 2047
# define load ldx
# define store stx
#else
# define WORD_SIZE 4
# define MIN_FRAME_SIZE 96
# define STACK_BIAS 0
# define load ld
# define store st
#endif
/* Fields of the JmpBuf structure. */
#define JB_CFA 0
#define JB_PC 1
#define OFFSET(FIELD) ((FIELD) * WORD_SIZE)
/* The frame size must be a multiple of the double-word size. */
#define FRAME_SIZE (MIN_FRAME_SIZE + 2 * WORD_SIZE)
#define JB_OFFSET (STACK_BIAS + MIN_FRAME_SIZE)
.text
.align 4
.globl _ITM_beginTransaction
.type _ITM_beginTransaction, #function
.proc 016
_ITM_beginTransaction:
cfi_startproc
add %sp, STACK_BIAS, %g1
sub %sp, FRAME_SIZE, %sp
cfi_def_cfa_offset(STACK_BIAS + FRAME_SIZE)
store %g1, [%sp + JB_OFFSET + OFFSET (JB_CFA)]
store %o7, [%sp + JB_OFFSET + OFFSET (JB_PC)]
/* ??? This triggers an internal error in GDB. */
cfi_offset(%o7, -WORD_SIZE)
call GTM_begin_transaction
add %sp, JB_OFFSET, %o1
load [%sp + JB_OFFSET + OFFSET (JB_PC)], %o7
jmp %o7+8
add %sp, FRAME_SIZE, %sp
cfi_def_cfa_offset(STACK_BIAS)
cfi_endproc
.size _ITM_beginTransaction, . - _ITM_beginTransaction
.align 4
.globl GTM_longjmp
#ifdef HAVE_ATTRIBUTE_VISIBILITY
.hidden GTM_longjmp
#endif
.type GTM_longjmp, #function
.proc 016
GTM_longjmp:
cfi_startproc
flushw
#if STACK_BIAS
load [%o1 + OFFSET (JB_CFA)], %g1
sub %g1, STACK_BIAS, %fp
#else
load [%o1 + OFFSET (JB_CFA)], %fp
#endif
cfi_def_cfa(%fp, STACK_BIAS)
load [%o1 + OFFSET (JB_PC)], %o7
jmp %o7+8
restore %g0, %o0, %o0
cfi_endproc
.size GTM_longjmp, . - GTM_longjmp
#ifdef __linux__
.section .note.GNU-stack, "", @progbits
#endif