]>
git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
2 # SPDX-License-Identifier: GPL-2.0
3 # description: Kprobe event argument syntax
5 [ -f kprobe_events
] || exit_unsupported
# this is configurable
7 grep "x8/16/32/64" README
> /dev
/null || exit_unsupported
# version issue
16 if ! grep -qw ${GOODSYM} /proc
/kallsyms
; then
20 SYMADDR
=0x
`grep -w ${GOODSYM} /proc/kallsyms | cut -f 1 -d " "`
39 test_goodarg
() # Good-args
42 echo "p ${PROBEFUNC} $1" > kprobe_events
47 test_badarg
() # Bad-args
50 ! echo "p ${PROBEFUNC} $1" > kprobe_events
58 test_goodarg
${GOODREG}
62 test_goodarg
"@${GOODSYM}" "@${SYMADDR}" "@${GOODSYM}+10" "@${GOODSYM}-10"
63 test_badarg
"@" "@${BADSYM}" "@${GOODSYM}*10" "@${GOODSYM}/10" \
64 "@${GOODSYM}%10" "@${GOODSYM}&10" "@${GOODSYM}|10"
67 test_goodarg
"\$stack" "\$stack0" "\$stack1"
68 test_badarg
"\$stackp" "\$stack0+10" "\$stack1-10"
71 echo "r ${PROBEFUNC} \$retval" > kprobe_events
72 ! echo "p ${PROBEFUNC} \$retval" > kprobe_events
77 : "Indirect memory access"
78 test_goodarg
"+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \
79 "+0(\$stack1)" "+10(@${GOODSYM}-10)" "+0(+10(+20(\$stack)))"
80 test_badarg
"+(${GOODREG})" "(${GOODREG}+10)" "-(${GOODREG})" "(${GOODREG})" \
81 "+10(\$comm)" "+0(${GOODREG})+10"
84 test_goodarg
"varname=${GOODREG}"
85 test_badarg
"varname=varname2=${GOODREG}"
88 test_goodarg
"${GOODREG}:${GOODTYPE}"
89 test_badarg
"${GOODREG}::${GOODTYPE}" "${GOODREG}:${BADTYPE}" \
90 "${GOODTYPE}:${GOODREG}"
94 test_goodarg
"\$comm:string" "+0(\$stack):string"
95 test_badarg
"\$comm:x64" "\$stack:string" "${GOODREG}:string"