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| author | Milian Wolff <milian.wolff@kdab.com> | 2020-06-13 13:34:37 +0200 |
|---|---|---|
| committer | Milian Wolff <milian.wolff@kdab.com> | 2020-06-15 08:28:45 +0000 |
| commit | 32be1f61f86f48280658adf7e3ca9d00be4b9a60 (patch) | |
| tree | 01c00991f7666e2f1141a7968f0f4b5e02a944e9 | |
| parent | 9cdf95c8c81b7a1422da52099e8fb9544090fc5a (diff) | |
Don't try to open perf.map file when it doesn't exist
Removes a lot of open() syscalls that are bound to fail anyways.
Change-Id: I1b1d6d574dd5148922630aa84b8996b6b9d55af7
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
| -rw-r--r-- | app/perfsymboltable.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/app/perfsymboltable.cpp b/app/perfsymboltable.cpp index bedee81..f82f4f2 100644 --- a/app/perfsymboltable.cpp +++ b/app/perfsymboltable.cpp @@ -1061,6 +1061,9 @@ QByteArray PerfSymbolTable::symbolFromPerfMap(quint64 ip, GElf_Off *offset) cons void PerfSymbolTable::updatePerfMap() { + if (!m_perfMapFile.exists()) + return; + if (!m_perfMapFile.isOpen()) m_perfMapFile.open(QIODevice::ReadOnly); |