Compile, link, notes - 3

1 readelf and objdump example detailed explanation and difference

Detailed explanation and difference between readelf and objdump examples | Code Farmers

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• 1. readelf - view the information of the elf file
  • 1. readelf command + code example detailed explanation
  • 1.1 readelf -s simple.o //--symbols display the items in the symbol table section
  • 1.2 readelf -h simple.o //Display the file header information at the beginning of the elf file.
  • 1.3 readelf -S simple.o //Display section header information
  • 1.4 readelf -a simple.o //elf displays all information
• 2. objdump - view information about object files
  • 2. objdump command + code example detailed explanation
  • 2.1 objdump -h simple.o //Display the header summary information of each section of the object file
  • 2.2 objdump -t simple.o //Display the file's symbol table entry.
    • 2.2.1 objdump -t libc.a grep -w printf //find which object file printf is in the libc.a library
  • 2.3 objdump -d simple.o //-d parameter to see the disassembly result of the code segment
  • 2.4 objdump -r simple.o //View the relocation table
  • 2.5 objdump -f simple.o //Display the overall header summary information of each file in objfile
  • 2.6 objdump -s simple.o //Display the complete content of the specified section
  • 2.7 objdump -x simple.o //Display available header information
  • 2.8 objdump -a simple.o //Display archives