linux/tools/testing/selftests/perf_events
Eric W. Biederman 0683b53197 signal: Deliver all of the siginfo perf data in _perf
Don't abuse si_errno and deliver all of the perf data in _perf member
of siginfo_t.

Note: The data field in the perf data structures in a u64 to allow a
pointer to be encoded without needed to implement a 32bit and 64bit
version of the same structure.  There already exists a 32bit and 64bit
versions siginfo_t, and the 32bit version can not include a 64bit
member as it only has 32bit alignment.  So unsigned long is used in
siginfo_t instead of a u64 as unsigned long can encode a pointer on
all architectures linux supports.

v1: https://lkml.kernel.org/r/m11rarqqx2.fsf_-_@fess.ebiederm.org
v2: https://lkml.kernel.org/r/20210503203814.25487-10-ebiederm@xmission.com
v3: https://lkml.kernel.org/r/20210505141101.11519-11-ebiederm@xmission.com
Link: https://lkml.kernel.org/r/20210517195748.8880-4-ebiederm@xmission.com
Reviewed-by: Marco Elver <elver@google.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2021-05-18 16:20:54 -05:00
..
.gitignore selftests/perf_events: Add kselftest for remove_on_exec 2021-04-16 16:32:42 +02:00
config
Makefile selftests/perf_events: Add kselftest for remove_on_exec 2021-04-16 16:32:42 +02:00
remove_on_exec.c selftests/perf_events: Add kselftest for remove_on_exec 2021-04-16 16:32:42 +02:00
settings
sigtrap_threads.c signal: Deliver all of the siginfo perf data in _perf 2021-05-18 16:20:54 -05:00