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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/gen_isr_header.py
parent7c2cb09fad601facbb142d9378033d64d19b6488 (diff)
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new driver blinkenlights
Diffstat (limited to 'driver_fw/tools/gen_isr_header.py')
-rw-r--r--driver_fw/tools/gen_isr_header.py67
1 files changed, 67 insertions, 0 deletions
diff --git a/driver_fw/tools/gen_isr_header.py b/driver_fw/tools/gen_isr_header.py
new file mode 100644
index 0000000..c965fc8
--- /dev/null
+++ b/driver_fw/tools/gen_isr_header.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+
+import subprocess
+import os
+import re
+import datetime
+from pathlib import Path
+
+def cpp_preprocess(input_path, cpp='cpp'):
+ return subprocess.check_output([cpp, '-P', input_path]).decode()
+
+def gen_isr_header(f, cpp='cpp'):
+ stripped_code = cpp_preprocess(args.input, args.use_cpp)
+
+ armed = False
+ for line in stripped_code.splitlines():
+ line = line.strip()
+
+ if armed:
+ if not line.startswith('.word'):
+ break
+
+ word, value = line.split()
+ assert word == '.word'
+ if value == '0':
+ yield None
+ else:
+ yield value
+
+ else:
+ if line.startswith('g_pfnVectors:'):
+ armed = True
+
+ else:
+ raise ValueError('Cannot find interrupt vector definition!')
+
+if __name__ == '__main__':
+ import argparse
+ parser = argparse.ArgumentParser()
+ parser.add_argument('--use-cpp', type=str, default=os.getenv('CPP', 'cpp'), help='cpp (C preprocessor) executable to use')
+ parser.add_argument('-g', '--generate-include-guards', action='store_true', help='Whether to generate include guards')
+ parser.add_argument('input', help='Input stm32****_startup.s file')
+ args = parser.parse_args()
+
+ print('/* AUTOGENERATED FILE! DO NOT MODIFY! */')
+ print(f'/* Generated {datetime.datetime.utcnow()} from {args.input} by {Path(__file__).name} */')
+ if args.generate_include_guards:
+ include_guard_id = '__ISR_HEADER_' + re.sub('[^A-Za-z0-9]', '_', args.input.split('/')[-1]) + '__'
+ print(f'#ifndef {include_guard_id}')
+ print(f'#define {include_guard_id}')
+
+ print()
+ for i, handler_name in enumerate(gen_isr_header(args.input, args.use_cpp)):
+ if handler_name is None:
+ print(f'/* IRQ {i} is undefined for this part. */')
+ else:
+ print(f'void {handler_name}(void); {" " * (30-len(handler_name))} /* {i:> 3} */')
+ print()
+
+ print(f'#define NUM_IRQs {i+1}')
+ print('extern uint32_t g_pfnVectors[NUM_IRQs];')
+ print('#define isr_vector g_pfnVectors')
+ print()
+
+ if args.generate_include_guards:
+ print(f'#endif /* {include_guard_id} */')
+