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Subject[PATCH 0/5] perf-probe: Improve probing on versioned symbols

Here is the series for probing on versioned symbols
in libraries. This includes 5 patches to fix the
issues discussed on perf-users ML

[1/5] Warn if the event name is invalid. This notices
user that there is internal error which caused by
unexpected input.
[2/5] Cut off the version suffix when making event name
from symbol name. This fixes a issue when a wildcard
hits versioned symbol.
[3/5] Add "__return" suffix to the event name
automatically for the return probe, so that user
can easily identify which event is on function
[4/5] Find versioned symbol from map without wildcard.
This allows user to specify a symbol without version
suffix nor wildcard. Anyway, at this point we have
no way to specify version suffix, because parser
recognizes "@" is a separator of "function@file"
syntax. This is fixed in next patch.
[5/5] Allow user to use backslash-escaped characters
on command line. This has 2 effects, user can specify
version suffix directly, and we can use special
characters in source file.


Masami Hiramatsu (5):
perf-probe: Add warning message if there is unexpected event name
perf-probe: Cut off the version suffix from event name
perf-probe: Add __return suffix for return events
perf-probe: Find versioned symbols from map
perf-probe: Support escaped character in parser

tools/perf/arch/powerpc/util/sym-handling.c | 8 +++
tools/perf/util/probe-event.c | 81 +++++++++++++++++++--------
tools/perf/util/string.c | 46 +++++++++++++++
tools/perf/util/string2.h | 2 +
tools/perf/util/symbol.c | 5 ++
tools/perf/util/symbol.h | 1
6 files changed, 120 insertions(+), 23 deletions(-)

Masami Hiramatsu (Linaro Ltd.) <>

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