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https://fuchsia.googlesource.com/third_party/pigweed.googlesource.com/pigweed/pigweed
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70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
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// Copyright 2019 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "pw_cpu_exception_armv7m/cpu_state.h"
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#include <cinttypes>
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#include <cstdint>
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#include "pw_cpu_exception/cpu_exception.h"
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#include "pw_span/span.h"
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#include "pw_string/string_builder.h"
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namespace pw::cpu_exception {
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span<const uint8_t> RawFaultingCpuState(const CpuState& cpu_state) {
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return span(reinterpret_cast<const uint8_t*>(&cpu_state), sizeof(cpu_state));
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}
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// Using this function adds approximately 100 bytes to binary size.
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void ToString(const CpuState& cpu_state, StringBuilder* builder) {
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const ArmV7mFaultRegisters& base = cpu_state.base;
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const ArmV7mExtraRegisters& extended = cpu_state.extended;
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#define _PW_FORMAT_REGISTER(state_section, name) \
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builder->Format("%s=0x%08" PRIx32 "\n", #name, state_section.name)
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// Other registers.
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_PW_FORMAT_REGISTER(base, pc);
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_PW_FORMAT_REGISTER(base, lr);
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_PW_FORMAT_REGISTER(base, psr);
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_PW_FORMAT_REGISTER(extended, msp);
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_PW_FORMAT_REGISTER(extended, psp);
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_PW_FORMAT_REGISTER(extended, exc_return);
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_PW_FORMAT_REGISTER(extended, cfsr);
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_PW_FORMAT_REGISTER(extended, mmfar);
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_PW_FORMAT_REGISTER(extended, bfar);
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_PW_FORMAT_REGISTER(extended, icsr);
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_PW_FORMAT_REGISTER(extended, control);
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// General purpose registers.
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_PW_FORMAT_REGISTER(base, r0);
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_PW_FORMAT_REGISTER(base, r1);
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_PW_FORMAT_REGISTER(base, r2);
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_PW_FORMAT_REGISTER(base, r3);
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_PW_FORMAT_REGISTER(extended, r4);
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_PW_FORMAT_REGISTER(extended, r5);
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_PW_FORMAT_REGISTER(extended, r6);
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_PW_FORMAT_REGISTER(extended, r7);
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_PW_FORMAT_REGISTER(extended, r8);
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_PW_FORMAT_REGISTER(extended, r9);
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_PW_FORMAT_REGISTER(extended, r10);
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_PW_FORMAT_REGISTER(extended, r11);
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_PW_FORMAT_REGISTER(base, r12);
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#undef _PW_FORMAT_REGISTER
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}
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} // namespace pw::cpu_exception
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