1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: Kprobe event symbol argument
4# requires: kprobe_events
5
6SYMBOL="linux_proc_banner"
7
8if [ ! -f /proc/kallsyms ]; then
9  echo "Can not check the target symbol - please enable CONFIG_KALLSYMS"
10  exit_unresolved
11elif ! grep "$SYMBOL\$" /proc/kallsyms; then
12  echo "Linux banner is not exported - please enable CONFIG_KALLSYMS_ALL"
13  exit_unresolved
14fi
15
16: "Test get basic types symbol argument"
17echo "p:testprobe_u $FUNCTION_FORK arg1=@linux_proc_banner:u64 arg2=@linux_proc_banner:u32 arg3=@linux_proc_banner:u16 arg4=@linux_proc_banner:u8" > kprobe_events
18echo "p:testprobe_s $FUNCTION_FORK arg1=@linux_proc_banner:s64 arg2=@linux_proc_banner:s32 arg3=@linux_proc_banner:s16 arg4=@linux_proc_banner:s8" >> kprobe_events
19if grep -q "x8/16/32/64" README; then
20  echo "p:testprobe_x $FUNCTION_FORK arg1=@linux_proc_banner:x64 arg2=@linux_proc_banner:x32 arg3=@linux_proc_banner:x16 arg4=@linux_proc_banner:x8" >> kprobe_events
21fi
22echo "p:testprobe_bf $FUNCTION_FORK arg1=@linux_proc_banner:b8@4/32" >> kprobe_events
23echo 1 > events/kprobes/enable
24(echo "forked")
25echo 0 > events/kprobes/enable
26grep "testprobe_[usx]:.* arg1=.* arg2=.* arg3=.* arg4=.*" trace
27grep "testprobe_bf:.* arg1=.*" trace
28
29: "Test get string symbol argument"
30echo "p:testprobe_str $FUNCTION_FORK arg1=@linux_proc_banner:string" > kprobe_events
31echo 1 > events/kprobes/enable
32(echo "forked")
33echo 0 > events/kprobes/enable
34RESULT=`grep "testprobe_str" trace | sed -e 's/.* arg1=\(.*\)/\1/'`
35
36RESULT=`echo $RESULT | sed -e 's/.* \((.*)\) \((.*)\) .*/\1 \2/'`
37ORIG=`cat /proc/version | sed -e 's/.* \((.*)\) \((.*)\) .*/\1 \2/'`
38test "$RESULT" = "$ORIG"
39