c++ - How to get address of printf function in arm executable -


i have assingment make loader arm elf relocatible files. have managed parse elf somehow, , managed make simple relocations, have following , have trouble. need call printf function inside elf file trying load, , must same printf function 1 program trying load it. (thats host program, writen in c++ arm arch). how can printf address, , after how can relocate symbol in elf file. (i googled , found out type of relocation uses 24-bit pc relative addressing) can me extract address of printf? thanx in advance!

if can understand c++, use source luke.

see: assemblers , loader, david solomon. [some pearls of wisdom, archaic trivia]

as understand, printf in same file , need patch address @ run-time. in case, relocation 24-bit pc relative relocation. answer nothing in case. executable , implementation both in same binary, 24-bit pc relative relocated no matter load address is.

if relocating shared library, process different.


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