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| author | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-06-06 21:39:55 +0900 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-06-06 21:39:55 +0900 |
| commit | cb16330d12741f6dae56aad5acf62f5be3a06c4e (patch) | |
| tree | 989f603fa2a1d02a0e12fc411435337102f45e8b /kernel/trace/bpf_trace.c | |
| parent | 9561de3a55bed6bdd44a12820ba81ec416e705a7 (diff) | |
| download | linux-stable-cb16330d12741f6dae56aad5acf62f5be3a06c4e.tar.gz linux-stable-cb16330d12741f6dae56aad5acf62f5be3a06c4e.tar.bz2 linux-stable-cb16330d12741f6dae56aad5acf62f5be3a06c4e.zip | |
fprobe: Pass return address to the handlers
Pass return address as 'ret_ip' to the fprobe entry and return handlers
so that the fprobe user handler can get the reutrn address without
analyzing arch-dependent pt_regs.
Link: https://lore.kernel.org/all/168507467664.913472.11642316698862778600.stgit@mhiramat.roam.corp.google.com/
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'kernel/trace/bpf_trace.c')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 9a050e36dc6c..987c76d94604 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -2642,7 +2642,8 @@ kprobe_multi_link_prog_run(struct bpf_kprobe_multi_link *link, static int kprobe_multi_link_handler(struct fprobe *fp, unsigned long fentry_ip, - struct pt_regs *regs, void *data) + unsigned long ret_ip, struct pt_regs *regs, + void *data) { struct bpf_kprobe_multi_link *link; @@ -2653,7 +2654,8 @@ kprobe_multi_link_handler(struct fprobe *fp, unsigned long fentry_ip, static void kprobe_multi_link_exit_handler(struct fprobe *fp, unsigned long fentry_ip, - struct pt_regs *regs, void *data) + unsigned long ret_ip, struct pt_regs *regs, + void *data) { struct bpf_kprobe_multi_link *link; |