mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-09-12 10:44:06 -04:00
dccddc39aa
For debugging probe events, it is helpful to verify the compiled fetch instructions for each probe argument. This introduces a new kernel config CONFIG_PROBE_EVENTS_DUMP_FETCHARG to decode the instruction sequence of each argument and display it under a commented line starting with '#' immediately following the dynamic event definition (such as in dynamic_events, kprobe_events, uprobe_events, etc.). For example: /sys/kernel/tracing # cat dynamic_events p:kprobes/p_vfs_read_0 vfs_read arg1=+0(file):ustring arg2=%ax:x16 # arg1: ARG(0) -> ST_USTRING(offset=0,size=4) -> END # arg2: REG(80) -> ST_RAW(size=2) -> END Link: https://lore.kernel.org/all/178271359508.1176915.11895926894608440183.stgit@devnote2/ Assisted-by: Antigravity:gemini-3.5-flash Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>