gcc - Convert c calling function in assembly codes to assembly as well -
i working on c file mathematical functions such log
, exp
. compile c file gcc generate assembly codes. inside assembly codes, whenever pow
function used, find call c function. instance,
movsd xmm0, qword ptr 16[rbp] call log addsd xmm0, xmm0 call exp movsd qword ptr -8[rbp], xmm0
i wondering if possible tell gcc instead of calling c function, generate assembly code log
, exp
? in other words, possible tell gcc generate assembly codes not require external function calling?
thanks,
you load program in gdb or debugger, , set breakpoint on call, , step log
or exp
function , when there, dump disassembly of (or copy & paste if you're running appropriate debugger). can if don't have source library functions.
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