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Diffstat (limited to 'libitm/config/loongarch/sjlj.S')
| -rw-r--r-- | libitm/config/loongarch/sjlj.S | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/libitm/config/loongarch/sjlj.S b/libitm/config/loongarch/sjlj.S new file mode 100644 index 0000000..a5f9fad --- /dev/null +++ b/libitm/config/loongarch/sjlj.S @@ -0,0 +1,127 @@ +/* Copyright (C) 2022 Free Software Foundation, Inc. + Contributed by Loongson Co. Ltd. + + 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 + move $r5, $sp + ADDSP(-(12*SZ_GPR+8*SZ_FPR)) + cfi_adjust_cfa_offset(12*SZ_GPR+8*SZ_FPR) + + /* Frame Pointer */ + GPR_S $fp, $sp, 0*SZ_GPR + cfi_rel_offset(22, 0) + + /* Return Address */ + GPR_S $r1, $sp, 1*SZ_GPR + cfi_rel_offset(1, SZ_GPR) + + /* Caller's $sp */ + GPR_S $r5, $sp, 2*SZ_GPR + + /* Callee-saved scratch GPRs (r23-r31) */ + GPR_S $s0, $sp, 3*SZ_GPR + GPR_S $s1, $sp, 4*SZ_GPR + GPR_S $s2, $sp, 5*SZ_GPR + GPR_S $s3, $sp, 6*SZ_GPR + GPR_S $s4, $sp, 7*SZ_GPR + GPR_S $s5, $sp, 8*SZ_GPR + GPR_S $s6, $sp, 9*SZ_GPR + GPR_S $s7, $sp, 10*SZ_GPR + GPR_S $s8, $sp, 11*SZ_GPR + +#if !defined(__loongarch_soft_float) + /* Callee-saved scratch FPRs (f24-f31) */ + FPR_S $f24, $sp, 12*SZ_GPR + 0*SZ_FPR + FPR_S $f25, $sp, 12*SZ_GPR + 1*SZ_FPR + FPR_S $f26, $sp, 12*SZ_GPR + 2*SZ_FPR + FPR_S $f27, $sp, 12*SZ_GPR + 3*SZ_FPR + FPR_S $f28, $sp, 12*SZ_GPR + 4*SZ_FPR + FPR_S $f29, $sp, 12*SZ_GPR + 5*SZ_FPR + FPR_S $f30, $sp, 12*SZ_GPR + 6*SZ_FPR + FPR_S $f31, $sp, 12*SZ_GPR + 7*SZ_FPR +#endif + move $fp, $sp + + /* Invoke GTM_begin_transaction with the struct we've just built. */ + move $r5, $sp + bl %plt(GTM_begin_transaction) + + /* Return. (no call-saved scratch reg needs to be restored here) */ + GPR_L $fp, $sp, 0*SZ_GPR + cfi_restore(22) + GPR_L $r1, $sp, 1*SZ_GPR + cfi_restore(1) + + ADDSP(12*SZ_GPR+8*SZ_FPR) + cfi_adjust_cfa_offset(-(12*SZ_GPR+8*SZ_FPR)) + + jr $r1 + cfi_endproc + .size _ITM_beginTransaction, . - _ITM_beginTransaction + + .align 2 + .global GTM_longjmp + .hidden GTM_longjmp + .type GTM_longjmp, @function + +GTM_longjmp: + cfi_startproc + GPR_L $s0, $r5, 3*SZ_GPR + GPR_L $s1, $r5, 4*SZ_GPR + GPR_L $s2, $r5, 5*SZ_GPR + GPR_L $s3, $r5, 6*SZ_GPR + GPR_L $s4, $r5, 7*SZ_GPR + GPR_L $s5, $r5, 8*SZ_GPR + GPR_L $s6, $r5, 9*SZ_GPR + GPR_L $s7, $r5, 10*SZ_GPR + GPR_L $s8, $r5, 11*SZ_GPR + + FPR_L $f24, $r5, 12*SZ_GPR + 0*SZ_FPR + FPR_L $f25, $r5, 12*SZ_GPR + 1*SZ_FPR + FPR_L $f26, $r5, 12*SZ_GPR + 2*SZ_FPR + FPR_L $f27, $r5, 12*SZ_GPR + 3*SZ_FPR + FPR_L $f28, $r5, 12*SZ_GPR + 4*SZ_FPR + FPR_L $f29, $r5, 12*SZ_GPR + 5*SZ_FPR + FPR_L $f30, $r5, 12*SZ_GPR + 6*SZ_FPR + FPR_L $f31, $r5, 12*SZ_GPR + 7*SZ_FPR + + GPR_L $r7, $r5, 2*SZ_GPR + GPR_L $fp, $r5, 0*SZ_GPR + GPR_L $r1, $r5, 1*SZ_GPR + cfi_def_cfa(5, 0) + move $sp, $r7 + jr $r1 + cfi_endproc + .size GTM_longjmp, . - GTM_longjmp + +#ifdef __linux__ +.section .note.GNU-stack, "", @progbits +#endif |