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1//===-- xray_trampoline_riscv64.s ----------------------------------*- ASM -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file is a part of XRay, a dynamic runtime instrumentation system.10//11// This implements the riscv64-specific assembler for the trampolines.12//13//===----------------------------------------------------------------------===//14 15#include "../sanitizer_common/sanitizer_asm.h"16 17.macro SAVE_ARG_REGISTERS18 // Push return registers to stack19 addi sp, sp, -14420 CFI_DEF_CFA_OFFSET(144)21 sd ra, 136(sp)22 sd a7, 128(sp)23 sd a6, 120(sp)24 sd a5, 112(sp)25 sd a4, 104(sp)26 sd a3, 96(sp)27 sd a2, 88(sp)28 sd a1, 80(sp)29 sd a0, 72(sp)30 fsd fa7, 64(sp)31 fsd fa6, 56(sp)32 fsd fa5, 48(sp)33 fsd fa4, 40(sp)34 fsd fa3, 32(sp)35 fsd fa2, 24(sp)36 fsd fa1, 16(sp)37 fsd fa0, 8(sp)38.endm39 40.macro SAVE_RET_REGISTERS41 // Push return registers to stack42 addi sp, sp, -4843 CFI_DEF_CFA_OFFSET(48)44 sd ra, 40(sp)45 sd a1, 32(sp)46 sd a0, 24(sp)47 fsd fa1, 16(sp)48 fsd fa0, 8(sp)49.endm50 51.macro RESTORE_RET_REGISTERS52 // Restore return registers53 fld fa0, 8(sp)54 fld fa1, 16(sp)55 ld a0, 24(sp)56 ld a1, 32(sp)57 ld ra, 40(sp)58 addi sp, sp, 4859 CFI_DEF_CFA_OFFSET(0)60.endm61 62.macro RESTORE_ARG_REGISTERS63 // Restore argument registers64 fld fa0, 8(sp)65 fld fa1, 16(sp)66 fld fa2, 24(sp)67 fld fa3, 32(sp)68 fld fa4, 40(sp)69 fld fa5, 48(sp)70 fld fa6, 56(sp)71 fld fa7, 64(sp)72 ld a0, 72(sp)73 ld a1, 80(sp)74 ld a2, 88(sp)75 ld a3, 96(sp)76 ld a4, 104(sp)77 ld a5, 112(sp)78 ld a6, 120(sp)79 ld a7, 128(sp)80 ld ra, 136(sp)81 addi sp, sp, 14482 CFI_DEF_CFA_OFFSET(0)83.endm84 85.macro LOAD_XLEN, rd, src86 ld \rd, \src87.endm88 89#include "xray_trampoline_riscv_common.S"90