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b1afefa62c
The WARN_ON() check in __assign_str() to catch where the source variable
to the macro doesn't match the source variable to __string() gives an
error in clang:
>> include/trace/events/sunrpc.h:703:4: warning: result of comparison against a string literal is unspecified (use an explicit string comparison function instead) [-Wstring-compare]
670 | __assign_str(progname, "unknown");
That's because the __assign_str() macro has:
WARN_ON_ONCE((src) != __data_offsets.dst##_ptr_);
Where "src" is a string literal. Clang warns when comparing a string
literal directly as it is undefined to what the value of the literal is.
Since this is still to make sure the same string that goes to __string()
is the same as __assign_str(), for string literals do a test for that and
then use strcmp() in those cases
Note that this depends on commit
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| .. | ||
| events | ||
| misc | ||
| stages | ||
| bpf_probe.h | ||
| define_custom_trace.h | ||
| define_trace.h | ||
| perf.h | ||
| syscall.h | ||
| trace_custom_events.h | ||
| trace_events.h | ||