scripts/bin_to_c.py: add support for text files
bin_to_c.py may be useful to generate a C file from a text file, not
only from a binary file. This patch adds the --text argument for that
purpose. With --text, the script will:
- define a "const char []" variable,
- error out if a null byte is encountered,
- terminate the input string with a null byte.
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/scripts/bin_to_c.py b/scripts/bin_to_c.py
index c9d2f01..d35cc68 100755
--- a/scripts/bin_to_c.py
+++ b/scripts/bin_to_c.py
@@ -8,6 +8,7 @@
import array
import os
import re
+import sys
def get_args():
@@ -26,6 +27,9 @@
parser.add_argument('--out', required=True,
help='Path for the generated C file')
+ parser.add_argument('--text', required=False, action='store_true',
+ help='Treat input as a text file')
+
return parser.parse_args()
@@ -35,6 +39,8 @@
with open(args.bin, 'rb') as indata:
bytes = indata.read()
+ if args.text:
+ bytes += b'\0'
size = len(bytes)
f = open(args.out, 'w')
@@ -42,12 +48,18 @@
os.path.basename(__file__) + ' */\n\n')
f.write('#include <compiler.h>\n')
f.write('#include <stdint.h>\n')
- f.write('__extension__ const uint8_t ' + args.vname + '[] ' +
- ' __aligned(__alignof__(uint64_t)) = {\n')
+ if args.text:
+ f.write('__extension__ const char ' + args.vname + '[] = {\n')
+ else:
+ f.write('__extension__ const uint8_t ' + args.vname + '[] ' +
+ ' __aligned(__alignof__(uint64_t)) = {\n')
i = 0
while i < size:
if i % 8 == 0:
f.write('\t\t')
+ if args.text and i != size - 1 and bytes[i] == b'\0':
+ print('Error: null byte encountered in text file')
+ sys.exit(1)
f.write('0x' + '{:02x}'.format(bytes[i]) + ',')
i = i + 1
if i % 8 == 0 or i == size: