qemu /
qemu /
bba94f7876436b798a87894d2e9886429ccda446 contrib/plugins/uftrace: implement tracing
We implement tracing, following uftrace format.
Trace is flushed every 32 MB, so file operations don't impact
performance at runtime.
A different trace is generated per cpu, and we ensure they have a unique
name, based on vcpu_index, while keeping room for privilege level coming
in next commit.
Uftrace format is not officially documented, but it can be found here:
https://github.com/namhyung/uftrace/blob/v0.18/libmcount/record.c#L909
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20250902075042.223990-5-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250922093711.2768983-21-alex.bennee@linaro.org>
1 file changed
