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Terminal output comparing 'hexdump -C main.o' with 'readelf -h main.o' ELF Header: Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, little endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: REL (Relocatable file) Machine: Advanced Micro Devices X86-64 Version: 0x1 Entry point address: 0x0 Start of program headers: 0 (bytes into file) Start of section headers: 1808 (bytes into file) Flags: 0x0 Size of this header: 64 (bytes) Size of program headers: 0 (bytes) Number of program headers: 0 Size of section headers: 64 (bytes) Number of section headers: 12 Section header string table index: 11

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Terminal output comparing 'hexdump -C main.o' with 'readelf -h main.o' ELF Header: Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, little endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: REL (Relocatable file) Machine: Advanced Micro Devices X86-64 Version: 0x1 Entry point address: 0x0 Start of program headers: 0 (bytes into file) Start of section headers: 1808 (bytes into file) Flags: 0x0 Size of this header: 64 (bytes) Size of program headers: 0 (bytes) Number of program headers: 0 Size of section headers: 64 (bytes) Number of section headers: 12 Section header string table index: 11
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Jan Schaumann (jschauma@mstdn.social)'s status on Tuesday, 26-Nov-2024 15:58:22 UTC Jan Schaumann
in reply to

Advanced #Programming in the #UNIX Environment
Week 11, The Executable and Linkable Format
We begin our exploration of shared libraries. We start with a look at the Executable and Linkable Format (#ELF) for binary files such as executables, object files, core files and shared libraries. We'll use the hexdump(1) and readelf(1) utilities to better understand the format.
https://youtu.be/i1UDF05iZPU
#apue

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