55 lines
2 KiB
Python
Executable file
55 lines
2 KiB
Python
Executable file
#!/usr/bin/env python
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# esp32ulp_mapgen utility converts a symbol list provided by nm into an export script
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# for the linker and a header file.
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#
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# Copyright (c) 2016-2017 Espressif Systems (Shanghai) PTE LTD.
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# Distributed under the terms of Apache License v2.0 found in the top-level LICENSE file.
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from optparse import OptionParser
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BASE_ADDR = 0x50000000
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def gen_ld_h_from_sym(f_sym, f_ld, f_h):
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f_ld.write("/* Variable definitions for ESP32ULP linker\n")
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f_ld.write(" * This file is generated automatically by esp32ulp_mapgen.py utility.\n")
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f_ld.write(" */\n\n")
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f_h.write("// Variable definitions for ESP32ULP\n")
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f_h.write("// This file is generated automatically by esp32ulp_mapgen.py utility\n\n")
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f_h.write("#pragma once\n\n")
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for line in f_sym:
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name, _, addr_str = line.split()
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addr = int(addr_str, 16) + BASE_ADDR
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f_h.write("extern uint32_t ulp_{0};\n".format(name))
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f_ld.write("PROVIDE ( ulp_{0} = 0x{1:08x} );\n".format(name, addr))
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def main():
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description = ("This application generates .h and .ld files for symbols defined in input file. "
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"The input symbols file can be generated using nm utility like this: "
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"esp32-ulp-nm -g -f posix <elf_file> > <symbols_file>")
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parser = OptionParser(description=description)
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parser.add_option("-s", "--symfile", dest="symfile",
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help="symbols file name", metavar="SYMFILE")
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parser.add_option("-o", "--outputfile", dest="outputfile",
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help="destination .h and .ld files name prefix", metavar="OUTFILE")
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(options, args) = parser.parse_args()
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if options.symfile is None:
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parser.print_help()
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return 1
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if options.outputfile is None:
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parser.print_help()
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return 1
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with open(options.outputfile + ".h", 'w') as f_h, open(options.outputfile + ".ld", 'w') as f_ld, open(options.symfile) as f_sym:
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gen_ld_h_from_sym(f_sym, f_ld, f_h)
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return 0
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if __name__ == "__main__":
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exit(main())
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