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350396d70f
These are some changes I made to debug tooling while tracking down the bugfix in the previous commit. Each `scripts/debug_*_alloc.gdb` script has gdb output a `*_allocs.txt` file, which in turn can be parsed by the `scripts/parse_*_allocs.py` script to find errors.
63 lines
1.5 KiB
Python
Executable File
63 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
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from bisect import bisect_left, insort
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from operator import attrgetter
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by_start = attrgetter('start')
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class alloc:
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def __init__(self, start, size):
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self.start = start
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self.size = size
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@property
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def end(self):
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return self.start + self.size
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def overlaps(self, other):
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return other.start < self.end and other.end > self.start
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def __str__(self):
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return f"[{self.start:012x} - {self.end:012x}]"
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def __gt__(self, other):
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return self.start > other.start
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def add_alloc(allocs, addr, length):
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a = alloc(addr, length)
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for existing in allocs:
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if a.overlaps(existing):
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print(f"ERROR: allocation {a} overlaps existing {existing}")
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insort(allocs, a)
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def remove_alloc(allocs, addr):
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a = alloc(addr, 0)
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i = bisect_left(allocs, a)
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if len(allocs) > i and allocs[i].start == addr:
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del allocs[i]
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else:
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print(f"ERROR: freeing unallocated {a}")
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def parse_line(allocs, line):
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args = line.strip().split()
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match args:
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case ['+', addr, length]:
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add_alloc(allocs, int(addr, base=16), int(length))
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case ['-', addr]:
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remove_alloc(allocs, int(addr, base=16))
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case _:
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pass
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def parse_file(f):
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allocs = []
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for line in f.readlines():
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parse_line(allocs, line)
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if __name__ == "__main__":
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import sys
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if len(sys.argv) > 1:
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with open(sys.argv[1]) as f:
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parse_file(f)
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else:
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parse_file(sys.stdin)
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