35 lines
856 B
Go
35 lines
856 B
Go
package proc
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import (
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"debug/elf"
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"debug/gosym"
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"fmt"
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)
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func readPcLnTableElf(exe *elf.File, path string) (*gosym.Table, error) {
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// Default section label is .gopclntab
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sectionLabel := ".gopclntab"
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section := exe.Section(sectionLabel)
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if section == nil {
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// binary may be built with -pie
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sectionLabel = ".data.rel.ro.gopclntab"
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section = exe.Section(sectionLabel)
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if section == nil {
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return nil, fmt.Errorf("could not read section .gopclntab")
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}
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}
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tableData, err := section.Data()
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if err != nil {
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return nil, fmt.Errorf("found section but could not read .gopclntab")
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}
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addr := exe.Section(".text").Addr
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lineTable := gosym.NewLineTable(tableData, addr)
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symTable, err := gosym.NewTable([]byte{}, lineTable)
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if err != nil {
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return nil, fmt.Errorf("could not create symbol table from %s ", path)
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}
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return symTable, nil
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}
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