def _test_elf2image(self, elfpath, binpath):
try:
self.run_elf2image("esp8266", elfpath, 2)
image = esptool.LoadFirmwareImage("esp8266", binpath)
self.assertEqual(4, len(image.segments))
self.assertImageContainsSection(image, elfpath, ".data")
self.assertImageContainsSection(image, elfpath, ".text")
self.assertImageContainsSection(image, elfpath, ".rodata")
irom_segment = image.segments[0]
self.assertEqual(0, irom_segment.addr,
"IROM segment 'load address' should be zero")
with open(elfpath, "rb") as f:
e = ELFFile(f)
sh_size = (e.get_section_by_name(".irom0.text").header.sh_size
+ 15) & ~15
self.assertEqual(
len(irom_segment.data), sh_size,
"irom segment (0x%x) should be same size (16 padded) as .irom0.text section (0x%x)"
% (len(irom_segment.data), sh_size))
# check V2 CRC (for ESP8266 SDK bootloader)
with open(binpath, "rb") as f:
f.seek(-4, os.SEEK_END)
image_len = f.tell()
crc_stored = struct.unpack("<I", f.read(4))[0]
f.seek(0)
crc_calc = esptool.esp8266_crc32(f.read(image_len))
self.assertEqual(crc_stored, crc_calc)
# test imageinfo doesn't fail
self.assertImageInfo(binpath)
finally:
try_delete(binpath)
def _test_elf2image(self, elfpath, binpath):
try:
self.run_elf2image("esp8266", elfpath, 2)
image = esptool.LoadFirmwareImage("esp8266", binpath)
self.assertEqual(4, len(image.segments))
self.assertImageContainsSection(image, elfpath, ".data")
self.assertImageContainsSection(image, elfpath, ".text")
self.assertImageContainsSection(image, elfpath, ".rodata")
irom_segment = image.segments[0]
self.assertEqual(0, irom_segment.addr,
"IROM segment 'load address' should be zero")
with open(elfpath, "rb") as f:
e = ELFFile(f)
sh_size = (e.get_section_by_name(".irom0.text").header.sh_size + 15) & ~15
self.assertEqual(len(irom_segment.data), sh_size, "irom segment (0x%x) should be same size (16 padded) as .irom0.text section (0x%x)" % (len(irom_segment.data), sh_size))
# check V2 CRC (for ESP8266 SDK bootloader)
with open(binpath, "rb") as f:
f.seek(-4, os.SEEK_END)
image_len = f.tell()
crc_stored = struct.unpack("<I", f.read(4))[0]
f.seek(0)
crc_calc = esptool.esp8266_crc32(f.read(image_len))
self.assertEqual(crc_stored, crc_calc)
# test imageinfo doesn't fail
self.assertImageInfo(binpath)
finally:
try_delete(binpath)
