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authorjaseg <git@jaseg.de>2023-08-27 22:31:09 +0200
committerjaseg <git@jaseg.de>2023-08-27 22:31:09 +0200
commitec28fcd9f905358759eea98161f451567135d17e (patch)
treeed8f0f4f96811433ddca5f294f731c7584549a36 /driver_fw/tools/linksize.py
parent7c2cb09fad601facbb142d9378033d64d19b6488 (diff)
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new driver blinkenlights
Diffstat (limited to 'driver_fw/tools/linksize.py')
-rw-r--r--driver_fw/tools/linksize.py62
1 files changed, 62 insertions, 0 deletions
diff --git a/driver_fw/tools/linksize.py b/driver_fw/tools/linksize.py
new file mode 100644
index 0000000..c41a951
--- /dev/null
+++ b/driver_fw/tools/linksize.py
@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+
+def parse_linker_script(data):
+ pass
+
+def link(groups):
+ defined_symbols = {}
+ undefined_symbols = set()
+ for group, files in groups:
+ while True:
+ found_something = False
+
+ for fn in files:
+ symbols = load_symbols(fn)
+ for symbol in symbols:
+ if symbol in defined_symbols:
+
+ if not group or not found_something:
+ break
+
+
+if __name__ == '__main__':
+
+ import argparse
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-T', '--script', type=str, help='Linker script to use')
+ parser.add_argument('-o', '--output', type=str, help='Output file to produce')
+ args, rest = parser.parse_known_intermixed_args()
+ print(rest)
+
+ addprefix = lambda *xs: [ prefix + opt for opt in xs for prefix in ('', '-Wl,') ]
+ START_GROUP = addprefix('-(', '--start-group')
+ END_GROUP = addprefix('-)', '--end-group')
+ GROUP_OPTS = [*START_GROUP, *END_GROUP]
+ input_files = [ arg for arg in rest if not arg.startswith('-') or arg in GROUP_OPTS ]
+
+ def input_file_iter(input_files):
+ group = False
+ files = []
+ for arg in input_files:
+ if arg in START_GROUP:
+ assert not group
+
+ if files:
+ yield False, files # nested -Wl,--start-group
+ group, files = True, []
+
+ elif arg in END_GROUP:
+ assert group # missing -Wl,--start-group
+ if files:
+ yield True, files
+ group, files = False, []
+
+ else:
+ files.append(arg)
+
+ assert not group # missing -Wl,--end-group
+ if files:
+ yield False, files
+
+
+