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argdist filter expressions can now use the STRCMP helper function to compare strings. The first string must be a compile-time constant literal string, and the second string can be determined at runtime. This is a workaround until BPF introduces a kernel builtin for strcmp. Example: ``` argdist -H 'r:c:open(char *file):u64:$latency:STRCMP("test.txt",file)' ```
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