================ @@ -0,0 +1,87 @@ +//===-- xray_trampoline_riscv32.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 riscv32-specific assembler for the trampolines. +// +//===----------------------------------------------------------------------===// + +.macro SAVE_ARG_REGISTERS + // Push argument registers to stack + addi sp, sp, -112 + .cfi_def_cfa_offset 112 + sw ra, 108(sp) + .cfi_offset ra, -4 + sw a7, 104(sp) + sw a6, 100(sp) + sw a5, 96(sp) + sw a4, 92(sp) + sw a3, 88(sp) + sw a2, 84(sp) + sw a1, 80(sp) + sw a0, 76(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) ---------------- mshockwave wrote:
It's true that only some of the XRay targets implement CFI (e.g. x86_64), but I'm incline to have a correct frame address since showing the trampoline name in the stack trace is pretty useful sometimes. I have kept the CFI directives regarding CFA and removed all the other directives. https://github.com/llvm/llvm-project/pull/117368 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
