def wrap_stub(elf_file):
""" Wrap an ELF file into a stub 'dict' """
print('Wrapping ELF file %s...' % elf_file)
e = esptool.ELFFile(elf_file)
text_section = e.get_section('.text')
try:
data_section = e.get_section('.data')
except ValueError:
data_section = None
stub = {
'text': text_section.data,
'text_start': text_section.addr,
'entry': e.entrypoint,
}
if data_section is not None:
stub['data'] = data_section.data
stub['data_start'] = data_section.addr
# Pad text with NOPs to mod 4.
if len(stub['text']) % 4 != 0:
stub['text'] += (4 - (len(stub['text']) % 4)) * '\0'
print('Stub text: %d @ 0x%08x, data: %d @ 0x%08x, entry @ 0x%x' % (
len(stub['text']), stub['text_start'],
len(stub.get('data', '')), stub.get('data_start', 0),
stub['entry']), file=sys.stderr)
return stub
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301 USA.
import json
import os
import sys
sys.path.append('..')
import esptool
if __name__ == '__main__':
e = esptool.ELFFile(sys.argv[1])
entry = 'stub_main'
stub = {
'params_start': e.get_symbol_addr('_params_start'),
'code': e.load_section('.code'),
'code_start': e.get_symbol_addr('_code_start'),
'entry': e.get_symbol_addr(entry),
}
data = e.load_section('.data')
if len(data) > 0:
stub['data'] = data
stub['data_start'] = e.get_symbol_addr('_data_start')
params_len = e.get_symbol_addr('_params_end') - stub['params_start']
if params_len % 4 != 0:
raise FatalError('Params must be dwords')
