libitm: Enable aarch64
From-SVN: r210615
This commit is contained in:
Richard Henderson
Richard Henderson
parent
1d44def2c2
commit
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4 changed files with 145 additions and 0 deletions
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2014-05-19 Richard Henderson <rth@redhat.com>
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* config/aarch64/sjlj.S: New file.
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* config/aarch64/target.h: New file.
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* configure.tgt: Enable aarch64.
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2014-04-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
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* config/generic/asmcfi.h: Also check for
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93
libitm/config/aarch64/sjlj.S
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93
libitm/config/aarch64/sjlj.S
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/* Copyright (C) 2014 Free Software Foundation, Inc.
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Contributed by Richard Henderson <rth@redhat.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 2
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.global _ITM_beginTransaction
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.type _ITM_beginTransaction, %function
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_ITM_beginTransaction:
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cfi_startproc
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mov x1, sp
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stp x29, x30, [sp, -11*16]!
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cfi_adjust_cfa_offset(11*16)
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cfi_rel_offset(x29, 0)
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cfi_rel_offset(x30, 8)
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mov x29, sp
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stp x19, x20, [sp, 1*16]
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stp x21, x22, [sp, 2*16]
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stp x23, x24, [sp, 3*16]
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stp x25, x26, [sp, 4*16]
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stp x27, x28, [sp, 5*16]
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stp d8, d9, [sp, 6*16]
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stp d10, d11, [sp, 7*16]
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stp d12, d13, [sp, 8*16]
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stp d14, d15, [sp, 9*16]
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str x1, [sp, 10*16]
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/* Invoke GTM_begin_transaction with the struct we just built. */
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mov x1, sp
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bl GTM_begin_transaction
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/* Return; we don't need to restore any of the call-saved regs. */
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ldp x29, x30, [sp]
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add sp, sp, #11*16
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cfi_adjust_cfa_offset(-11*16)
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cfi_restore(x29)
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cfi_restore(x30)
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ret
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cfi_endproc
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.size _ITM_beginTransaction, . - _ITM_beginTransaction
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.align 2
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.global GTM_longjmp
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.hidden GTM_longjmp
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.type GTM_longjmp, %function
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GTM_longjmp:
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/* The first parameter becomes the return value (x0).
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The third parameter is ignored for now. */
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cfi_startproc
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ldp x19, x20, [x1, 1*16]
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ldp x21, x22, [x1, 2*16]
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ldp x23, x24, [x1, 3*16]
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ldp x25, x26, [x1, 4*16]
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ldp x27, x28, [x1, 5*16]
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ldp d8, d9, [x1, 6*16]
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ldp d10, d11, [x1, 7*16]
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ldp d12, d13, [x1, 8*16]
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ldp d14, d15, [x1, 9*16]
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ldr x3, [x1, 10*16]
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ldp x29, x30, [x1]
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cfi_def_cfa(x1, 0)
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mov sp, x3
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br x30
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cfi_endproc
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.size GTM_longjmp, . - GTM_longjmp
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#ifdef __linux__
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.section .note.GNU-stack, "", %progbits
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#endif
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45
libitm/config/aarch64/target.h
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45
libitm/config/aarch64/target.h
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@ -0,0 +1,45 @@
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/* Copyright (C) 2014 Free Software Foundation, Inc.
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Contributed by Richard Henderson <rth@redhat.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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namespace GTM HIDDEN {
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typedef struct gtm_jmpbuf
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{
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unsigned long long fp; /* x29 */
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unsigned long long pc; /* x30 */
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unsigned long long gr[10]; /* x19-x28 */
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unsigned long long vr[8]; /* d8-d15 */
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void *cfa;
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} gtm_jmpbuf;
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/* ??? The size of one line in hardware caches (in bytes). */
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#define HW_CACHELINE_SIZE 128
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static inline void
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cpu_relax (void)
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{
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__asm volatile ("" : : : "memory");
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}
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} // namespace GTM
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@ -46,6 +46,7 @@ fi
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# Map the target cpu to an ARCH sub-directory. At the same time,
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# work out any special compilation flags as necessary.
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case "${target_cpu}" in
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aarch64*) ARCH=aarch64 ;;
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alpha*) ARCH=alpha ;;
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rs6000 | powerpc*)
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XCFLAGS="${XCFLAGS} -mhtm"
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