33 lines
1.1 KiB
Bash
33 lines
1.1 KiB
Bash
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# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
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perf probe -l 2>&1 | grep -q probe:vfs_getname
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had_vfs_getname=$?
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cleanup_probe_vfs_getname() {
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if [ $had_vfs_getname -eq 1 ] ; then
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perf probe -q -d probe:vfs_getname*
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fi
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}
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add_probe_vfs_getname() {
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local verbose=$1
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if [ $had_vfs_getname -eq 1 ] ; then
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line=$(perf probe -L getname_flags 2>&1 | grep -E 'result.*=.*filename;' | sed -r 's/[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*/\1/')
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perf probe -q "vfs_getname=getname_flags:${line} pathname=result->name:string" || \
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perf probe $verbose "vfs_getname=getname_flags:${line} pathname=filename:ustring"
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fi
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}
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skip_if_no_debuginfo() {
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add_probe_vfs_getname -v 2>&1 | grep -E -q "^(Failed to find the path for the kernel|Debuginfo-analysis is not supported)|(file has no debug information)" && return 2
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return 1
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}
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# check if perf is compiled with libtraceevent support
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skip_no_probe_record_support() {
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if [ $had_vfs_getname -eq 1 ] ; then
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perf record --dry-run -e $1 2>&1 | grep "libtraceevent is necessary for tracepoint support" && return 2
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return 1
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fi
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}
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