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    Subject[PATCH 4.14 065/109] perf script python: Fix export-to-postgresql.py occasional failure
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Adrian Hunter <adrian.hunter@intel.com>

    commit 25e11700b54c7b6b5ebfc4361981dae12299557b upstream.

    Occasional export failures were found to be caused by truncating 64-bit
    pointers to 32-bits. Fix by explicitly setting types for all ctype
    arguments and results.

    Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: stable@vger.kernel.org
    Link: http://lkml.kernel.org/r/20180911114504.28516-2-adrian.hunter@intel.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    tools/perf/scripts/python/export-to-postgresql.py | 9 +++++++++
    1 file changed, 9 insertions(+)

    --- a/tools/perf/scripts/python/export-to-postgresql.py
    +++ b/tools/perf/scripts/python/export-to-postgresql.py
    @@ -204,14 +204,23 @@ from ctypes import *
    libpq = CDLL("libpq.so.5")
    PQconnectdb = libpq.PQconnectdb
    PQconnectdb.restype = c_void_p
    +PQconnectdb.argtypes = [ c_char_p ]
    PQfinish = libpq.PQfinish
    +PQfinish.argtypes = [ c_void_p ]
    PQstatus = libpq.PQstatus
    +PQstatus.restype = c_int
    +PQstatus.argtypes = [ c_void_p ]
    PQexec = libpq.PQexec
    PQexec.restype = c_void_p
    +PQexec.argtypes = [ c_void_p, c_char_p ]
    PQresultStatus = libpq.PQresultStatus
    +PQresultStatus.restype = c_int
    +PQresultStatus.argtypes = [ c_void_p ]
    PQputCopyData = libpq.PQputCopyData
    +PQputCopyData.restype = c_int
    PQputCopyData.argtypes = [ c_void_p, c_void_p, c_int ]
    PQputCopyEnd = libpq.PQputCopyEnd
    +PQputCopyEnd.restype = c_int
    PQputCopyEnd.argtypes = [ c_void_p, c_void_p ]

    sys.path.append(os.environ['PERF_EXEC_PATH'] + \

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