CODEWITHSUNDEEP
binarysystem-callselfobjdumpreadelf
taranom
taranom

Reputation: 163

how to see the assembly of libc functions in an elf

how can i see the assembly of standard c library functions in an elf? for example, i have a binary that i have the source code of this binary and i know that printf is called in main function. i want to see the assembly of printf function in this elf. please notice that i want to see the assembly in elf itself. i search a lot but i don't find anything

Upvotes: 0

Views: 3848

Answers (1)

YoavKlein
YoavKlein

Reputation: 2703

You can compile with

~$ gcc -static prog.c

while prog.c uses the functions you the assembly of. That will statically link the libraries used to the binary.

Then you can just:

~$ objdump --disassemble a.out

EDIT

You can even take a simpler way: just objdump the libc library:

~$ objdump --disassemble /usr/lib/libc.so.6 // or whatever the path of libc is

Upvotes: 4

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