IDAPython script for finding functions in PPC code

ppc-functions.py

import idc

# When setting up a new stack frame, r0 is used to store the old link
# register, and r1 is the stack pointer. Some compilers create the
# following function prologue:
#   stwu r1, d(r1)
#   mflr r0
prologue = "94 21 ? ? 7C 08 02 A6"

ea = MinEA()
while ea != idc.BADADDR:
	ea = idc.FindBinary(ea + 4, 1, prologue, 16)
	
	if not idc.GetFunctionName(ea):
		idc.MakeFunction(ea)