56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package macho
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import (
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"bytes"
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"ios-wrapper/pkg/dwarf"
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)
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type DebuglineInfo struct {
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debuglines []*dwarf.DebuglineParser
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}
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type LineInfo struct {
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Line uint32
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Directory string
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File string
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}
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func (dinfo *DebuglineInfo) Find(address uint64) *LineInfo {
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for _, debugline := range dinfo.debuglines {
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found, line, directory, file := debugline.Find(address)
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if found {
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return &LineInfo{
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line, directory, file,
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}
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}
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}
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return nil
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}
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// Parse the __debug_line into a list of DebugLine
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//
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// reference from Crystal dwarf parser
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// https://github.com/crystal-lang/crystal/blob/421fa11bf05b11441b74bbeb2762b673f96fec3f/src/crystal/dwarf/line_numbers.cr
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func (mc *MachoContext) DebugLineInfo() *DebuglineInfo {
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debug_line_section := mc.FindSection("__debug_line")
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if debug_line_section == nil {
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return nil
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}
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start := uint64(debug_line_section.Offset())
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end := start + debug_line_section.Size()
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buf := bytes.NewBuffer(mc.buf[start:end])
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debugLine := []*dwarf.DebuglineParser{}
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for buf.Len() != 0 {
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parser := &dwarf.DebuglineParser{}
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parser.Parse(buf, mc.byteorder)
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debugLine = append(debugLine, parser)
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}
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return &DebuglineInfo{
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debugLine,
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}
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}
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