40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
// Copyright 2021 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_DEBUG_DWARF_LINE_NO_H_
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#define BASE_DEBUG_DWARF_LINE_NO_H_
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#include <cstddef>
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#include <cstdint>
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namespace base {
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namespace debug {
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// Finds the compile unit offset in .debug_info for each frame in `trace`.
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//
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// Expects `trace` and `cu_offsets` to be `num_frames` in size. If a frame
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// cannot be found, the corresponding value stored in `cu_offsets` is 0.
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void GetDwarfCompileUnitOffsets(void* const* trace,
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uint64_t* cu_offsets,
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size_t num_frames);
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// Formats the source file, line number and column for `pc` and into `out`.
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//
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// The `cu_offsets` is the offset in the .debug_info section for the compile
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// unit or partial unit DIE corresponding to the `pc`. It can be found using
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// GetDwarfCompileUnitOffsets() and must not be 0.
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//
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// Example:
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// ../../base/debug/stack_trace_unittest.cc:120,16
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//
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// This means `pc` was from line 120, column 16, of stack_trace_unittest.cc.
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bool GetDwarfSourceLineNumber(void* pc,
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uint64_t cu_offsets,
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char* out,
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size_t out_size);
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} // namespace debug
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} // namespace base
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#endif // BASE_DEBUG_DWARF_LINE_NO_H_
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