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package proc
import (
"debug/elf"
"debug/macho"
"errors"
"fmt"
"github.com/go-delve/delve/pkg/internal/gosym"
)
func readPcLnTableElf(exe *elf.File, path string) (*gosym.Table, uint64, error) {
// Default section label is .gopclntab
sectionLabel := ".gopclntab"
section := exe.Section(sectionLabel)
if section == nil {
// binary may be built with -pie
sectionLabel = ".data.rel.ro.gopclntab"
section = exe.Section(sectionLabel)
if section == nil {
return nil, 0, errors.New("could not read section .gopclntab")
}
}
tableData, err := section.Data()
if err != nil {
return nil, 0, errors.New("found section but could not read .gopclntab")
}
addr := exe.Section(".text").Addr
lineTable := gosym.NewLineTable(tableData, addr)
symTable, err := gosym.NewTable([]byte{}, lineTable)
if err != nil {
return nil, 0, fmt.Errorf("could not create symbol table from %s ", path)
}
return symTable, section.Addr, nil
}
func readPcLnTableMacho(exe *macho.File, path string) (*gosym.Table, uint64, error) {
// Default section label is __gopclntab
sectionLabel := "__gopclntab"
section := exe.Section(sectionLabel)
if section == nil {
return nil, 0, errors.New("could not read section __gopclntab")
}
tableData, err := section.Data()
if err != nil {
return nil, 0, errors.New("found section but could not read __gopclntab")
}
addr := exe.Section("__text").Addr
lineTable := gosym.NewLineTable(tableData, addr)
symTable, err := gosym.NewTable([]byte{}, lineTable)
if err != nil {
return nil, 0, fmt.Errorf("could not create symbol table from %s ", path)
}
return symTable, section.Addr, nil
}
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