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libitm: Enable aarch64 

From-SVN: r210615
This commit is contained in:
Richard Henderson 2014-05-19 07:41:18 -07:00 committed by Richard Henderson
parent 1d44def2c2
commit b17f08ddf9
4 changed files with 145 additions and 0 deletions
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6
libitm/ChangeLog
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@ -1,3 +1,9 @@
2014-05-19 Richard Henderson <rth@redhat.com>
* config/aarch64/sjlj.S: New file.
* config/aarch64/target.h: New file.
* configure.tgt: Enable aarch64.
2014-04-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> 2014-04-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/generic/asmcfi.h: Also check for * config/generic/asmcfi.h: Also check for

93
libitm/config/aarch64/sjlj.S Normal file
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/* Copyright (C) 2014 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
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"
.text
.align 2
.global _ITM_beginTransaction
.type _ITM_beginTransaction, %function
_ITM_beginTransaction:
cfi_startproc
mov x1, sp
stp x29, x30, [sp, -11*16]!
cfi_adjust_cfa_offset(11*16)
cfi_rel_offset(x29, 0)
cfi_rel_offset(x30, 8)
mov x29, sp
stp x19, x20, [sp, 1*16]
stp x21, x22, [sp, 2*16]
stp x23, x24, [sp, 3*16]
stp x25, x26, [sp, 4*16]
stp x27, x28, [sp, 5*16]
stp d8, d9, [sp, 6*16]
stp d10, d11, [sp, 7*16]
stp d12, d13, [sp, 8*16]
stp d14, d15, [sp, 9*16]
str x1, [sp, 10*16]
/* Invoke GTM_begin_transaction with the struct we just built. */
mov x1, sp
bl GTM_begin_transaction
/* Return; we don't need to restore any of the call-saved regs. */
ldp x29, x30, [sp]
add sp, sp, #11*16
cfi_adjust_cfa_offset(-11*16)
cfi_restore(x29)
cfi_restore(x30)
ret
cfi_endproc
.size _ITM_beginTransaction, . - _ITM_beginTransaction
.align 2
.global GTM_longjmp
.hidden GTM_longjmp
.type GTM_longjmp, %function
GTM_longjmp:
/* The first parameter becomes the return value (x0).
The third parameter is ignored for now. */
cfi_startproc
ldp x19, x20, [x1, 1*16]
ldp x21, x22, [x1, 2*16]
ldp x23, x24, [x1, 3*16]
ldp x25, x26, [x1, 4*16]
ldp x27, x28, [x1, 5*16]
ldp d8, d9, [x1, 6*16]
ldp d10, d11, [x1, 7*16]
ldp d12, d13, [x1, 8*16]
ldp d14, d15, [x1, 9*16]
ldr x3, [x1, 10*16]
ldp x29, x30, [x1]
cfi_def_cfa(x1, 0)
mov sp, x3
br x30
cfi_endproc
.size GTM_longjmp, . - GTM_longjmp
#ifdef __linux__
.section .note.GNU-stack, "", %progbits
#endif

45
libitm/config/aarch64/target.h Normal file
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/* Copyright (C) 2014 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
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/>. */
namespace GTM HIDDEN {
typedef struct gtm_jmpbuf
{
unsigned long long fp; /* x29 */
unsigned long long pc; /* x30 */
unsigned long long gr[10]; /* x19-x28 */
unsigned long long vr[8]; /* d8-d15 */
void *cfa;
} gtm_jmpbuf;
/* ??? The size of one line in hardware caches (in bytes). */
#define HW_CACHELINE_SIZE 128
static inline void
cpu_relax (void)
{
__asm volatile ("" : : : "memory");
}
} // namespace GTM

1
libitm/configure.tgt
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@ -46,6 +46,7 @@ fi
# Map the target cpu to an ARCH sub-directory. At the same time, # Map the target cpu to an ARCH sub-directory. At the same time,
# work out any special compilation flags as necessary. # work out any special compilation flags as necessary.
case "${target_cpu}" in case "${target_cpu}" in
aarch64*) ARCH=aarch64 ;;
alpha*) ARCH=alpha ;; alpha*) ARCH=alpha ;;
rs6000 | powerpc*) rs6000 | powerpc*)
XCFLAGS="${XCFLAGS} -mhtm" XCFLAGS="${XCFLAGS} -mhtm"