144 lines
4 KiB
ArmAsm
144 lines
4 KiB
ArmAsm
/* Copyright (C) 2022-2024 Free Software Foundation, Inc.
|
|
Contributed by Xiongchuan Tan <xc-tan@outlook.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"
|
|
#include "asm.h"
|
|
|
|
.text
|
|
.align 2
|
|
.global _ITM_beginTransaction
|
|
.type _ITM_beginTransaction, @function
|
|
|
|
_ITM_beginTransaction:
|
|
cfi_startproc
|
|
mv a1, sp
|
|
addi sp, sp, -ADJ_STACK_SIZE
|
|
cfi_adjust_cfa_offset(ADJ_STACK_SIZE)
|
|
|
|
/* Return Address */
|
|
GPR_S ra, 0*SZ_GPR(sp)
|
|
cfi_rel_offset(ra, 0*SZ_GPR)
|
|
|
|
/* Caller's sp */
|
|
GPR_S a1, 1*SZ_GPR(sp)
|
|
|
|
/* Caller's s0/fp */
|
|
GPR_S fp, 2*SZ_GPR(sp)
|
|
cfi_rel_offset(fp, 2*SZ_GPR)
|
|
|
|
/* Callee-saved registers */
|
|
GPR_S s1, 3*SZ_GPR(sp)
|
|
GPR_S s2, 4*SZ_GPR(sp)
|
|
GPR_S s3, 5*SZ_GPR(sp)
|
|
GPR_S s4, 6*SZ_GPR(sp)
|
|
GPR_S s5, 7*SZ_GPR(sp)
|
|
GPR_S s6, 8*SZ_GPR(sp)
|
|
GPR_S s7, 9*SZ_GPR(sp)
|
|
GPR_S s8, 10*SZ_GPR(sp)
|
|
GPR_S s9, 11*SZ_GPR(sp)
|
|
GPR_S s10, 12*SZ_GPR(sp)
|
|
GPR_S s11, 13*SZ_GPR(sp)
|
|
|
|
#if defined(__riscv_flen)
|
|
/* Callee-saved floating-point registers */
|
|
FPR_S fs0, 0*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs1, 1*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs2, 2*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs3, 3*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs4, 4*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs5, 5*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs6, 6*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs7, 7*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs8, 8*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs9, 9*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs10, 10*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
FPR_S fs11, 11*SZ_FPR+LEN_GPR*SZ_GPR(sp)
|
|
#endif
|
|
mv fp, sp
|
|
|
|
/* Invoke GTM_begin_transaction with the struct we've just built. */
|
|
mv a1, sp
|
|
jal ra, GTM_begin_transaction
|
|
|
|
/* Return; we don't need to restore any of the call-saved regs. */
|
|
GPR_L ra, 0*SZ_GPR(sp)
|
|
cfi_restore(ra)
|
|
GPR_L fp, 2*SZ_GPR(sp)
|
|
cfi_restore(fp)
|
|
|
|
addi sp, sp, ADJ_STACK_SIZE
|
|
cfi_adjust_cfa_offset(-ADJ_STACK_SIZE)
|
|
|
|
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 (a0).
|
|
The third parameter is ignored for now. */
|
|
cfi_startproc
|
|
GPR_L s1, 3*SZ_GPR(a1)
|
|
GPR_L s2, 4*SZ_GPR(a1)
|
|
GPR_L s3, 5*SZ_GPR(a1)
|
|
GPR_L s4, 6*SZ_GPR(a1)
|
|
GPR_L s5, 7*SZ_GPR(a1)
|
|
GPR_L s6, 8*SZ_GPR(a1)
|
|
GPR_L s7, 9*SZ_GPR(a1)
|
|
GPR_L s8, 10*SZ_GPR(a1)
|
|
GPR_L s9, 11*SZ_GPR(a1)
|
|
GPR_L s10, 12*SZ_GPR(a1)
|
|
GPR_L s11, 13*SZ_GPR(a1)
|
|
|
|
#if defined(__riscv_flen)
|
|
FPR_L fs0, 0*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs1, 1*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs2, 2*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs3, 3*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs4, 4*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs5, 5*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs6, 6*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs7, 7*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs8, 8*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs9, 9*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs10, 10*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
FPR_L fs11, 11*SZ_FPR+LEN_GPR*SZ_GPR(a1)
|
|
#endif
|
|
|
|
GPR_L ra, 0*SZ_GPR(a1)
|
|
GPR_L fp, 2*SZ_GPR(a1)
|
|
GPR_L a3, 1*SZ_GPR(a1)
|
|
cfi_def_cfa(a1, 0)
|
|
mv sp, a3
|
|
jr ra
|
|
cfi_endproc
|
|
.size GTM_longjmp, . - GTM_longjmp
|
|
|
|
#ifdef __linux__
|
|
.section .note.GNU-stack, "", @progbits
|
|
#endif
|