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bpo-38118: Ignore Valgrind false alarm in PyUnicode_Decode() (GH-16651) 

Valgrind emits "Conditional jump or move depends on uninitialised
value(s)" false alarms on GCC builtin strcmp() function. The GCC code
is correct.

Valgrind bug: https://bugs.kde.org/show_bug.cgi?id=264936
(cherry picked from commit 03ab6b4fc6)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2019-10-08 06:49:12 -07:00 committed by GitHub
parent a1f45008f1
commit 364532fb49
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Misc/NEWS.d/next/Tools-Demos/2019-10-08-15-07-52.bpo-38118.pIZD6H.rst Normal file
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@ -0,0 +1,2 @@
Update Valgrind suppression file to ignore a false alarm in
:c:func:`PyUnicode_Decode` when using GCC builtin strcmp().

11
Misc/valgrind-python.supp
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@ -283,6 +283,17 @@
fun:rl_initialize
}
# Valgrind emits "Conditional jump or move depends on uninitialised value(s)"
# false alarms on GCC builtin strcmp() function. The GCC code is correct.
#
# Valgrind bug: https://bugs.kde.org/show_bug.cgi?id=264936
{
bpo-38118: Valgrind emits false alarm on GCC builtin strcmp()
Memcheck:Cond
fun:PyUnicode_Decode
}
###
### These occur from somewhere within the SSL, when running
### test_socket_sll. They are too general to leave on by default.