perf: ftrace: add graph tracer options args/retval/retval-hex/retaddr

This change adds support for new funcgraph tracer options funcgraph-args,
funcgraph-retval, funcgraph-retval-hex and funcgraph-retaddr.

The new added options are:
  - args       : Show function arguments.
  - retval     : Show function return value.
  - retval-hex : Show function return value in hexadecimal format.
  - retaddr    : Show function return address.

 # ./perf ftrace -G vfs_write --graph-opts retval,retaddr
 # tracer: function_graph
 #
 # CPU  DURATION                  FUNCTION CALLS
 # |     |   |                     |   |   |   |
 5)               |  mutex_unlock() { /* <-rb_simple_write+0xda/0x150 */
 5)   0.188 us    |    local_clock(); /* <-lock_release+0x2ad/0x440 ret=0x3bf2a3cf90e */
 5)               |    rt_mutex_slowunlock() { /* <-rb_simple_write+0xda/0x150 */
 5)               |      _raw_spin_lock_irqsave() { /* <-rt_mutex_slowunlock+0x4f/0x200 */
 5)   0.123 us    |        preempt_count_add(); /* <-_raw_spin_lock_irqsave+0x23/0x90 ret=0x0 */
 5)   0.128 us    |        local_clock(); /* <-__lock_acquire.isra.0+0x17a/0x740 ret=0x3bf2a3cfc8b */
 5)   0.086 us    |        do_raw_spin_trylock(); /* <-_raw_spin_lock_irqsave+0x4a/0x90 ret=0x1 */
 5)   0.845 us    |      } /* _raw_spin_lock_irqsave ret=0x292 */
 5)               |      _raw_spin_unlock_irqrestore() { /* <-rt_mutex_slowunlock+0x191/0x200 */
 5)   0.097 us    |        local_clock(); /* <-lock_release+0x2ad/0x440 ret=0x3bf2a3cff1f */
 5)   0.086 us    |        do_raw_spin_unlock(); /* <-_raw_spin_unlock_irqrestore+0x23/0x60 ret=0x1 */
 5)   0.104 us    |        preempt_count_sub(); /* <-_raw_spin_unlock_irqrestore+0x35/0x60 ret=0x0 */
 5)   0.726 us    |      } /* _raw_spin_unlock_irqrestore ret=0x80000000 */
 5)   1.881 us    |    } /* rt_mutex_slowunlock ret=0x0 */
 5)   2.931 us    |  } /* mutex_unlock ret=0x0 */

Signed-off-by: Changbin Du <changbin.du@huawei.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250613114048.132336-1-changbin.du@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

0 files changed, 0 insertions, 0 deletions