86 lines
2 KiB
Go
86 lines
2 KiB
Go
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// Copyright 2019 The UNICORE Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file
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//
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// Author: Gaulthier Gain <gaulthier.gain@uliege.be>
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package elf64core
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import (
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"bytes"
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"debug/elf"
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"encoding/binary"
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"fmt"
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"os"
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"text/tabwriter"
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u "tools/srcs/common"
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)
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type DynamicTable struct {
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nbEntries int
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name string
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elf64dyn []Elf64Dynamic
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}
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type Elf64Dynamic struct {
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Tag uint64
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Value uint64
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}
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func (elfFile *ELF64File) addDynamicEntry(index int, dynEntries []Elf64Dynamic) error {
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elfFile.DynamicTable = DynamicTable{}
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elfFile.DynamicTable.nbEntries = len(dynEntries)
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elfFile.DynamicTable.name = elfFile.SectionsTable.DataSect[index].Name
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elfFile.DynamicTable.elf64dyn = make([]Elf64Dynamic, 0)
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for _, s := range dynEntries {
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elfFile.DynamicTable.elf64dyn = append(elfFile.DynamicTable.elf64dyn, s)
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if s.Tag == uint64(elf.DT_NULL) {
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return nil
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}
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}
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return nil
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}
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func (elfFile *ELF64File) parseDynamic(index int) error {
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content, err := elfFile.GetSectionContent(uint16(index))
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if err != nil {
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return fmt.Errorf("failed reading relocation table: %s", err)
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}
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dynEntries := make([]Elf64Dynamic, len(content)/binary.Size(Elf64Dynamic{}))
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if err := binary.Read(bytes.NewReader(content),
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elfFile.Endianness, dynEntries); err != nil {
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return err
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}
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if err := elfFile.addDynamicEntry(index, dynEntries); err != nil {
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return err
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}
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return nil
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}
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func (table *DynamicTable) DisplayDynamicEntries() {
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if len(table.elf64dyn) == 0 {
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u.PrintWarning("Dynamic table is empty")
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return
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}
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w := new(tabwriter.Writer)
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w.Init(os.Stdout, 0, 8, 0, '\t', 0)
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fmt.Println("-----------------------------------------------------------------------")
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fmt.Printf("%s table contains %d entries:\n\n", table.name, table.nbEntries)
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_, _ = fmt.Fprintln(w, "Nr\tTag\tType\tValue")
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for i, s := range table.elf64dyn {
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_, _ = fmt.Fprintf(w, "%d:\t%.8x\t%s\t%x\n", i, s.Tag,
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dtStrings[s.Tag], s.Value)
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}
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_ = w.Flush()
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}
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