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-exception 6// 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_REGISTERS 18 // Push return registers to stack 19 addi sp, sp, -144 20 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.endm 39 40.macro SAVE_RET_REGISTERS 41 // Push return registers to stack 42 addi sp, sp, -48 43 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.endm 50 51.macro RESTORE_RET_REGISTERS 52 // Restore return registers 53 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, 48 59 CFI_DEF_CFA_OFFSET(0) 60.endm 61 62.macro RESTORE_ARG_REGISTERS 63 // Restore argument registers 64 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, 144 82 CFI_DEF_CFA_OFFSET(0) 83.endm 84 85.macro LOAD_XLEN, rd, src 86 ld \rd, \src 87.endm 88 89#include "xray_trampoline_riscv_common.S" 90