f25637cdb7
This commit adds the binary analyser code to the toolchain. This binary analyser adds various features such as gathering ELF information (e.g., functions, symbols, ...), micro-libs inspection, ELF comparison, ELF pages division, ... Note that it was developped with Unikraft structure in mind. The binary analyser can be used as an external tool with the '--binary' argument. A specific json file should be provided which contains specific fields (see 'bin_analysis_example.json'). Please, see the wiki for further information. Signed-off-by: Gaulthier Gain <gaulthier.gain@uliege.be>
124 lines
2.5 KiB
Go
124 lines
2.5 KiB
Go
// 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 elf64analyser
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import (
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"fmt"
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"io"
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"os"
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"strings"
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)
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const pageSize = 0x1000
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type ElfFileSegment struct {
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Filename string
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NbPages int
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Pages []*ElfPage
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}
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type ElfPage struct {
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number int
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startAddress uint64
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contentByteArray []byte
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hash string
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libName string
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sectionName string
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noNullValues int
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cap int
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}
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func (p *ElfPage) pageContentToString() string {
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var builder strings.Builder
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for i, entry := range p.contentByteArray {
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if i > 0 && i%4 == 0 {
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builder.WriteString(" ")
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}
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if i > 0 && i%16 == 0 {
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builder.WriteString("\n")
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}
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_, _ = builder.WriteString(fmt.Sprintf("%02x", entry))
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}
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_, _ = builder.WriteString("")
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return builder.String()
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}
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func (p *ElfPage) displayPageContent(mw io.Writer) {
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/*
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hexStartAddr, err := strconv.ParseInt(p.startAddress, 16, 64);
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if err != nil {
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panic(err)
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}
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*/
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for i, entry := range p.contentByteArray {
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if i > 0 && i%4 == 0 {
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_, _ = fmt.Fprintf(mw, " ")
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}
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if i > 0 && i%16 == 0 {
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_, _ = fmt.Fprintf(mw, "\n")
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}
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_, _ = fmt.Fprintf(mw, "%02x", entry)
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}
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_, _ = fmt.Fprintln(mw, "")
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}
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func (p *ElfPage) displayPageContentShort(mw io.Writer) {
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entryLine := 0
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for i, entry := range p.contentByteArray {
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if entry > 0 {
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_, _ = fmt.Fprintf(mw, "[%d] %02x ", i, entry)
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if entryLine > 0 && entryLine%16 == 0 {
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_, _ = fmt.Fprintf(mw, "\n")
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}
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entryLine++
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}
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}
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_, _ = fmt.Fprintln(mw, "")
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}
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func SavePagesToFile(pageTables []*ElfPage, filename string, shortView bool) error {
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mw := io.MultiWriter(os.Stdout)
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if len(filename) > 0 {
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file, err := os.Create(filename)
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if err != nil {
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return err
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}
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mw = io.MultiWriter(file)
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}
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for i, p := range pageTables {
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_, _ = fmt.Fprintln(mw, "----------------------------------------------------")
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_, _ = fmt.Fprintf(mw, "Page: %d\n", i+1)
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_, _ = fmt.Fprintf(mw, "LibName: %s\n", p.libName)
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_, _ = fmt.Fprintf(mw, "Section: %s\n", p.sectionName)
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_, _ = fmt.Fprintf(mw, "StartAddr: %x (%d)\n", p.startAddress, p.startAddress)
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_, _ = fmt.Fprintf(mw, "Non-Null value: %d\n", p.noNullValues)
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_, _ = fmt.Fprintf(mw, "Hash: %s\n", p.hash)
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if shortView {
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p.displayPageContentShort(mw)
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} else {
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p.displayPageContent(mw)
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}
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_, _ = fmt.Fprintln(mw, "----------------------------------------------------")
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}
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return nil
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}
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