| //===-- xray_trampoline_riscv64.s ----------------------------------*- ASM -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of XRay, a dynamic runtime instrumentation system. |
| // |
| // This implements the riscv64-specific assembler for the trampolines. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "../sanitizer_common/sanitizer_asm.h" |
| |
| .macro SAVE_ARG_REGISTERS |
| // Push return registers to stack |
| addi sp, sp, -144 |
| CFI_DEF_CFA_OFFSET(144) |
| sd ra, 136(sp) |
| sd a7, 128(sp) |
| sd a6, 120(sp) |
| sd a5, 112(sp) |
| sd a4, 104(sp) |
| sd a3, 96(sp) |
| sd a2, 88(sp) |
| sd a1, 80(sp) |
| sd a0, 72(sp) |
| fsd fa7, 64(sp) |
| fsd fa6, 56(sp) |
| fsd fa5, 48(sp) |
| fsd fa4, 40(sp) |
| fsd fa3, 32(sp) |
| fsd fa2, 24(sp) |
| fsd fa1, 16(sp) |
| fsd fa0, 8(sp) |
| .endm |
| |
| .macro SAVE_RET_REGISTERS |
| // Push return registers to stack |
| addi sp, sp, -48 |
| CFI_DEF_CFA_OFFSET(48) |
| sd ra, 40(sp) |
| sd a1, 32(sp) |
| sd a0, 24(sp) |
| fsd fa1, 16(sp) |
| fsd fa0, 8(sp) |
| .endm |
| |
| .macro RESTORE_RET_REGISTERS |
| // Restore return registers |
| fld fa0, 8(sp) |
| fld fa1, 16(sp) |
| ld a0, 24(sp) |
| ld a1, 32(sp) |
| ld ra, 40(sp) |
| addi sp, sp, 48 |
| CFI_DEF_CFA_OFFSET(0) |
| .endm |
| |
| .macro RESTORE_ARG_REGISTERS |
| // Restore argument registers |
| fld fa0, 8(sp) |
| fld fa1, 16(sp) |
| fld fa2, 24(sp) |
| fld fa3, 32(sp) |
| fld fa4, 40(sp) |
| fld fa5, 48(sp) |
| fld fa6, 56(sp) |
| fld fa7, 64(sp) |
| ld a0, 72(sp) |
| ld a1, 80(sp) |
| ld a2, 88(sp) |
| ld a3, 96(sp) |
| ld a4, 104(sp) |
| ld a5, 112(sp) |
| ld a6, 120(sp) |
| ld a7, 128(sp) |
| ld ra, 136(sp) |
| addi sp, sp, 144 |
| CFI_DEF_CFA_OFFSET(0) |
| .endm |
| |
| .macro LOAD_XLEN, rd, src |
| ld \rd, \src |
| .endm |
| |
| #include "xray_trampoline_riscv_common.S" |
