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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2017-02-14 00:05:59 +0900 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2017-03-21 16:24:18 +0000 |
| commit | 06553175f585b52509c7df37d6f4a50aacb7b211 (patch) | |
| tree | e0ccf491aef5454736ec3c607651bccb8cb4dd1c /crypto/tea.c | |
| parent | 91fc862c613ab7a0ef6b0b7755c33619127f4e5a (diff) | |
| download | linux-06553175f585b52509c7df37d6f4a50aacb7b211.tar.bz2 | |
arm: kprobes: Fix the return address of multiple kretprobes
This is arm port of commit 737480a0d525 ("kprobes/x86:
Fix the return address of multiple kretprobes").
Fix the return address of subsequent kretprobes when multiple
kretprobes are set on the same function.
For example:
# cd /sys/kernel/debug/tracing
# echo "r:event1 sys_symlink" > kprobe_events
# echo "r:event2 sys_symlink" >> kprobe_events
# echo 1 > events/kprobes/enable
# ln -s /tmp/foo /tmp/bar
(without this patch)
# cat trace | grep -v ^#
ln-82 [000] dn.2 68.446525: event1: (kretprobe_trampoline+0x0/0x18 <- SyS_symlink)
ln-82 [000] dn.2 68.447831: event2: (ret_fast_syscall+0x0/0x1c <- SyS_symlink)
(with this patch)
# cat trace | grep -v ^#
ln-81 [000] dn.1 39.463469: event1: (ret_fast_syscall+0x0/0x1c <- SyS_symlink)
ln-81 [000] dn.1 39.464701: event2: (ret_fast_syscall+0x0/0x1c <- SyS_symlink)
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: KUMANO Syuhei <kumano.prog@gmail.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Diffstat (limited to 'crypto/tea.c')
0 files changed, 0 insertions, 0 deletions