esp-idf/components/ulp/esp32ulp_mapgen.py

79 wiersze
3.0 KiB
Python
Executable File

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