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73 lines
3.2 KiB
Python
73 lines
3.2 KiB
Python
##############################################################################################
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# Copyright 2017 The Johns Hopkins University Applied Physics Laboratory LLC
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# All rights reserved.
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# Permission is hereby granted, free of charge, to any person obtaining a copy of this
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# software and associated documentation files (the "Software"), to deal in the Software
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# without restriction, including without limitation the rights to use, copy, modify,
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# merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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# PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
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# OR OTHER DEALINGS IN THE SOFTWARE.
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##############################################################################################
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# identify_ port_use_locations.py
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# Identifies all code using the CPU's ports and records the address and instruction
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# in the identified file.
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#
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# User-Defined Input:
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# ** Before use, edit the regex_pinref regular expression to match how the ports are displayed
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# in instructions for your architecture.
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#
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##############################################################################################
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################### USER DEFINED VALUES ###################
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# PIC18F8722
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regex_pinref = re.compile(r" PORT[A-H]")
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# 87C52 (8051) - Ports referenced as FSR_80 (P0)...FSR_B0 (P3)
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#regex_pinref = re.compile(r" FSR_[8-9A-Ba-b]0.?[0-7]?")
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# C515 (8051) - Ports referened as P1 or P1_8
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#regex_pinref = re.compile(r" P\d+\_?\d+")
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# M32R
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#regex_pinref = re.compile(r"
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############################################################
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start_addr = AskAddr(MinEA(), "Please enter the starting address for the code to be analyzed.")
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end_addr = AskAddr(MaxEA(), "Please enter the ending address for the code to be analyzed.")
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default_fn = "port_use_locations.txt"
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filename = AskFile(1, default_fn, "Please choose the location to save the port use locations file.")
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change_func_nm = AskYN(0, "Would you like to append a prefix to the names of funcs using ports?")
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curr_addr = start_addr
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func_name_out = False
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with open(filename, "w") as out_file:
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while curr_addr < end_addr:
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if (isCode(GetFlags(curr_addr))):
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instruct = GetDisasm(curr_addr);
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#print ("0x%08x: " % curr_addr) + instruct
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if regex_pinref.search(instruct):
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out_file.write(("0x%08x: " % curr_addr) + instruct);
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print ("0x%08x: " % curr_addr) + instruct
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if (change_func_nm == 1):
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func_start_addr = GetFunctionAttr(curr_addr, FUNCATTR_START)
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if (func_start_addr != BADADDR):
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curr_name = GetFunctionName(curr_addr)
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if (curr_name != "" and not curr_name.startswith("pin")):
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port_nums = regex_pinref.findall(instruct)
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name = "pin" + port_nums[0] + "Used_" + curr_name
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MakeName(func_start_addr, name)
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curr_addr = NextHead(curr_addr)
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