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| author | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-06-06 14:39:55 +0200 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-06-06 14:39:55 +0200 |
| commit | cb16330d12741f6dae56aad5acf62f5be3a06c4e (patch) | |
| tree | 989f603fa2a1d02a0e12fc411435337102f45e8b /lib/test_fprobe.c | |
| parent | Linux 6.4-rc5 (diff) | |
| download | linux-cb16330d12741f6dae56aad5acf62f5be3a06c4e.tar.xz linux-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 'lib/test_fprobe.c')
| -rw-r--r-- | lib/test_fprobe.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/test_fprobe.c b/lib/test_fprobe.c index 079435a2e26c..24de0e5ff859 100644 --- a/lib/test_fprobe.c +++ b/lib/test_fprobe.c @@ -39,7 +39,8 @@ static noinline u32 fprobe_selftest_nest_target(u32 value, u32 (*nest)(u32)) } static notrace int fp_entry_handler(struct fprobe *fp, unsigned long ip, - struct pt_regs *regs, void *data) + unsigned long ret_ip, + struct pt_regs *regs, void *data) { KUNIT_EXPECT_FALSE(current_test, preemptible()); /* This can be called on the fprobe_selftest_target and the fprobe_selftest_target2 */ @@ -57,6 +58,7 @@ static notrace int fp_entry_handler(struct fprobe *fp, unsigned long ip, } static notrace void fp_exit_handler(struct fprobe *fp, unsigned long ip, + unsigned long ret_ip, struct pt_regs *regs, void *data) { unsigned long ret = regs_return_value(regs); @@ -78,14 +80,16 @@ static notrace void fp_exit_handler(struct fprobe *fp, unsigned long ip, } static notrace int nest_entry_handler(struct fprobe *fp, unsigned long ip, - struct pt_regs *regs, void *data) + unsigned long ret_ip, + struct pt_regs *regs, void *data) { KUNIT_EXPECT_FALSE(current_test, preemptible()); return 0; } static notrace void nest_exit_handler(struct fprobe *fp, unsigned long ip, - struct pt_regs *regs, void *data) + unsigned long ret_ip, + struct pt_regs *regs, void *data) { KUNIT_EXPECT_FALSE(current_test, preemptible()); KUNIT_EXPECT_EQ(current_test, ip, target_nest_ip); |