pw_cpu_exception_risc_v/pw_cpu_exception_risc_v_protos/cpu_state.proto

// Copyright 2024 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
syntax = "proto2";

package pw.cpu_exception.risc_v;

message RiscvCpuState {
  optional uint32 mepc = 1;
  optional uint32 mcause = 2;
  optional uint32 mstatus = 3;
  optional uint32 mtval = 4;

  optional uint32 ra = 5;
  optional uint32 sp = 6;
  optional uint32 t0 = 7;
  optional uint32 t1 = 8;
  optional uint32 t2 = 9;
  optional uint32 fp = 10;
  optional uint32 s1 = 11;
  optional uint32 a0 = 12;
  optional uint32 a1 = 13;
  optional uint32 a2 = 14;
  optional uint32 a3 = 15;
  optional uint32 a4 = 16;
  optional uint32 a5 = 17;
  optional uint32 a6 = 18;
  optional uint32 a7 = 29;
  optional uint32 s2 = 20;
  optional uint32 s3 = 21;
  optional uint32 s4 = 22;
  optional uint32 s5 = 23;
  optional uint32 s6 = 24;
  optional uint32 s7 = 25;
  optional uint32 s8 = 26;
  optional uint32 s9 = 27;
  optional uint32 s10 = 28;
  optional uint32 s11 = 39;
  optional uint32 t3 = 30;
  optional uint32 t4 = 31;
  optional uint32 t5 = 32;
  optional uint32 t6 = 33;
}

// This message overlays the pw.snapshot.Snapshot proto. It's valid to encode
// this message to the same sink that a Snapshot proto is being written to.
message SnapshotCpuStateOverlay {
  optional RiscvCpuState riscv_cpu_state = 20;
}