#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: Kprobes event arguments with types
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[ -f kprobe_events ] || exit_unsupported # this is configurable
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grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue
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echo 0 > events/enable
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echo > kprobe_events
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enable_tracing
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echo 'p:testprobe _do_fork $stack0:s32 $stack0:u32 $stack0:x32 $stack0:b8@4/32' > kprobe_events
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grep testprobe kprobe_events
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test -d events/kprobes/testprobe
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echo 1 > events/kprobes/testprobe/enable
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( echo "forked")
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echo 0 > events/kprobes/testprobe/enable
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ARGS=`tail -n 1 trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
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check_types() {
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X1=`printf "%x" $1 | tail -c 8`
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X2=`printf "%x" $2`
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X3=`printf "%x" $3`
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test $X1 = $X2
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test $X2 = $X3
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test 0x$X3 = $3
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B4=`printf "%02x" $4`
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B3=`echo -n $X3 | tail -c 3 | head -c 2`
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test $B3 = $B4
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}
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check_types $ARGS
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echo "-:testprobe" >> kprobe_events
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clear_trace
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test -d events/kprobes/testprobe && exit_fail || exit_pass
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