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authorMasami Hiramatsu (Google) <mhiramat@kernel.org>2023-06-06 21:39:55 +0900
committerMasami Hiramatsu (Google) <mhiramat@kernel.org>2023-06-06 21:39:55 +0900
commitcb16330d12741f6dae56aad5acf62f5be3a06c4e (patch)
tree989f603fa2a1d02a0e12fc411435337102f45e8b /kernel/kprobes.c
parent9561de3a55bed6bdd44a12820ba81ec416e705a7 (diff)
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/kprobes.c')
-rw-r--r--kernel/kprobes.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 00e177de91cc..ce13f1a35251 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2127,6 +2127,7 @@ static int pre_handler_kretprobe(struct kprobe *p, struct pt_regs *regs)
NOKPROBE_SYMBOL(pre_handler_kretprobe);
static void kretprobe_rethook_handler(struct rethook_node *rh, void *data,
+ unsigned long ret_addr,
struct pt_regs *regs)
{
struct kretprobe *rp = (struct kretprobe *)data;