LoongArch: Libitm add LoongArch support.
Co-Authored-By: Yang Yujie <yangyujie@loongson.cn> libitm/ChangeLog: * configure.tgt: Add loongarch support. * config/loongarch/asm.h: New file. * config/loongarch/sjlj.S: New file. * config/loongarch/target.h: New file.
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Lulu Cheng
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54
libitm/config/loongarch/asm.h
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54
libitm/config/loongarch/asm.h
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/* Copyright (C) 2022 Free Software Foundation, Inc.
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Contributed by Loongson Co. Ltd.
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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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#ifndef _LA_ASM_H
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#define _LA_ASM_H
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#if defined(__loongarch_lp64)
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# define GPR_L ld.d
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# define GPR_S st.d
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# define SZ_GPR 8
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# define ADDSP(si) addi.d $sp, $sp, si
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#elif defined(__loongarch64_ilp32)
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# define GPR_L ld.w
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# define GPR_S st.w
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# define SZ_GPR 4
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# define ADDSP(si) addi.w $sp, $sp, si
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#else
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# error Unsupported GPR size (must be 64-bit or 32-bit).
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#endif
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#if defined(__loongarch_double_float)
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# define FPR_L fld.d
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# define FPR_S fst.d
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# define SZ_FPR 8
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#elif defined(__loongarch_single_float)
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# define FPR_L fld.s
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# define FPR_S fst.s
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# define SZ_FPR 4
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#else
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# define SZ_FPR 0
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#endif
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#endif /* _LA_ASM_H */
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127
libitm/config/loongarch/sjlj.S
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127
libitm/config/loongarch/sjlj.S
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/* Copyright (C) 2022 Free Software Foundation, Inc.
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Contributed by Loongson Co. Ltd.
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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 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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#include "asm.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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move $r5, $sp
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ADDSP(-(12*SZ_GPR+8*SZ_FPR))
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cfi_adjust_cfa_offset(12*SZ_GPR+8*SZ_FPR)
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/* Frame Pointer */
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GPR_S $fp, $sp, 0*SZ_GPR
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cfi_rel_offset(22, 0)
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/* Return Address */
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GPR_S $r1, $sp, 1*SZ_GPR
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cfi_rel_offset(1, SZ_GPR)
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/* Caller's $sp */
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GPR_S $r5, $sp, 2*SZ_GPR
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/* Callee-saved scratch GPRs (r23-r31) */
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GPR_S $s0, $sp, 3*SZ_GPR
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GPR_S $s1, $sp, 4*SZ_GPR
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GPR_S $s2, $sp, 5*SZ_GPR
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GPR_S $s3, $sp, 6*SZ_GPR
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GPR_S $s4, $sp, 7*SZ_GPR
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GPR_S $s5, $sp, 8*SZ_GPR
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GPR_S $s6, $sp, 9*SZ_GPR
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GPR_S $s7, $sp, 10*SZ_GPR
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GPR_S $s8, $sp, 11*SZ_GPR
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#if !defined(__loongarch_soft_float)
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/* Callee-saved scratch FPRs (f24-f31) */
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FPR_S $f24, $sp, 12*SZ_GPR + 0*SZ_FPR
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FPR_S $f25, $sp, 12*SZ_GPR + 1*SZ_FPR
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FPR_S $f26, $sp, 12*SZ_GPR + 2*SZ_FPR
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FPR_S $f27, $sp, 12*SZ_GPR + 3*SZ_FPR
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FPR_S $f28, $sp, 12*SZ_GPR + 4*SZ_FPR
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FPR_S $f29, $sp, 12*SZ_GPR + 5*SZ_FPR
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FPR_S $f30, $sp, 12*SZ_GPR + 6*SZ_FPR
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FPR_S $f31, $sp, 12*SZ_GPR + 7*SZ_FPR
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#endif
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move $fp, $sp
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/* Invoke GTM_begin_transaction with the struct we've just built. */
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move $r5, $sp
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bl %plt(GTM_begin_transaction)
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/* Return. (no call-saved scratch reg needs to be restored here) */
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GPR_L $fp, $sp, 0*SZ_GPR
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cfi_restore(22)
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GPR_L $r1, $sp, 1*SZ_GPR
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cfi_restore(1)
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ADDSP(12*SZ_GPR+8*SZ_FPR)
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cfi_adjust_cfa_offset(-(12*SZ_GPR+8*SZ_FPR))
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jr $r1
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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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cfi_startproc
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GPR_L $s0, $r5, 3*SZ_GPR
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GPR_L $s1, $r5, 4*SZ_GPR
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GPR_L $s2, $r5, 5*SZ_GPR
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GPR_L $s3, $r5, 6*SZ_GPR
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GPR_L $s4, $r5, 7*SZ_GPR
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GPR_L $s5, $r5, 8*SZ_GPR
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GPR_L $s6, $r5, 9*SZ_GPR
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GPR_L $s7, $r5, 10*SZ_GPR
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GPR_L $s8, $r5, 11*SZ_GPR
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FPR_L $f24, $r5, 12*SZ_GPR + 0*SZ_FPR
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FPR_L $f25, $r5, 12*SZ_GPR + 1*SZ_FPR
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FPR_L $f26, $r5, 12*SZ_GPR + 2*SZ_FPR
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FPR_L $f27, $r5, 12*SZ_GPR + 3*SZ_FPR
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FPR_L $f28, $r5, 12*SZ_GPR + 4*SZ_FPR
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FPR_L $f29, $r5, 12*SZ_GPR + 5*SZ_FPR
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FPR_L $f30, $r5, 12*SZ_GPR + 6*SZ_FPR
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FPR_L $f31, $r5, 12*SZ_GPR + 7*SZ_FPR
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GPR_L $r7, $r5, 2*SZ_GPR
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GPR_L $fp, $r5, 0*SZ_GPR
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GPR_L $r1, $r5, 1*SZ_GPR
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cfi_def_cfa(5, 0)
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move $sp, $r7
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jr $r1
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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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50
libitm/config/loongarch/target.h
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50
libitm/config/loongarch/target.h
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@ -0,0 +1,50 @@
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/* Copyright (C) 2022 Free Software Foundation, Inc.
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Contributed by Loongson Co. Ltd.
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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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long int fp; /* Frame Pointer: r22 */
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long int pc; /* Return Address: r1 */
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void *cfa; /* CFA: r3 */
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long int gpr[9]; /* Callee-saved scratch GPRs: r23(s0)-r31(s8) */
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/* Callee-saved scratch FPRs: f24-f31 */
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#if defined(__loongarch_double_float)
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double fpr[8];
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#elif defined(__loongarch_single_float)
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float fpr[8];
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#endif
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} gtm_jmpbuf;
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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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@ -80,6 +80,8 @@ EOF
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ARCH=x86
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;;
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loongarch*) ARCH=loongarch ;;
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sh*) ARCH=sh ;;
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sparc)
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