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// 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 <memory>
#include "include/v8-unwinder-state.h"
#include "include/v8.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::kDirectCallerGeneralRegistersOffset;
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
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