| // Copyright 2020 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "include/v8-unwinder-state.h" |
| #include "src/diagnostics/unwinder.h" |
| #include "src/execution/frame-constants.h" |
| |
| namespace v8 { |
| |
| void GetCalleeSavedRegistersFromEntryFrame(void* fp, |
| RegisterState* register_state) { |
| const i::Address base_addr = |
| reinterpret_cast<i::Address>(fp) + |
| i::EntryFrameConstants::kDirectCallerRRegistersOffset; |
| |
| if (!register_state->callee_saved) { |
| register_state->callee_saved = std::make_unique<CalleeSavedRegisters>(); |
| } |
| |
| register_state->callee_saved->arm_r4 = |
| reinterpret_cast<void*>(Load(base_addr + 0 * i::kSystemPointerSize)); |
| register_state->callee_saved->arm_r5 = |
| reinterpret_cast<void*>(Load(base_addr + 1 * i::kSystemPointerSize)); |
| register_state->callee_saved->arm_r6 = |
| reinterpret_cast<void*>(Load(base_addr + 2 * i::kSystemPointerSize)); |
| register_state->callee_saved->arm_r7 = |
| reinterpret_cast<void*>(Load(base_addr + 3 * i::kSystemPointerSize)); |
| register_state->callee_saved->arm_r8 = |
| reinterpret_cast<void*>(Load(base_addr + 4 * i::kSystemPointerSize)); |
| register_state->callee_saved->arm_r9 = |
| reinterpret_cast<void*>(Load(base_addr + 5 * i::kSystemPointerSize)); |
| register_state->callee_saved->arm_r10 = |
| reinterpret_cast<void*>(Load(base_addr + 6 * i::kSystemPointerSize)); |
| } |
| |
| } // namespace v8 |
