commit 4b00bfdd73a2cd56a4d9e8de0b249eed2a1b982f

Author: petarj <petarj@a5019735-40e9-0310-863c-91ae7b9d1cf9>

Date:   Fri Feb 3 00:34:52 2017 +0000

    add suppression for helgrind/tests/tc22_exit_w_lock

    Function pthread_create indirectly calls function memcpy. Helgrind

    considers that memcpy is not thread safe function. For error reported

    from pthread_create there is the suppression helgrind---_dl_allocate_tls

    in the file glibc-2.34567-NPTL-helgrind.supp.

    Since glibc version 2.23, memcpy is implemented by __mempcpy_inline.

    This causes that call to memcpy from pthread_create is no longer

    recognized by the suppression.

    In test helgrind/tests/tc22_exit_w_lock, pthread_create is called twice,

    and second call reports error, which causes failing of the test.

    This patch adds suppression for glibc 2.23 and greater.

    Patch by Tamara Vlahovic.

    Related issue #375806.

    git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16219 a5019735-40e9-0310-863c-91ae7b9d1cf9

diff --git a/glibc-2.34567-NPTL-helgrind.supp b/glibc-2.34567-NPTL-helgrind.supp

index ed105b8..7ebd2c4 100644

--- a/glibc-2.34567-NPTL-helgrind.supp

+++ b/glibc-2.34567-NPTL-helgrind.supp

@@ -267,6 +267,18 @@

    fun:pthread_create@*

 }

+{

+   helgrind---_dl_allocate_tls2

+   Helgrind:Race

+   fun:memcpy

+   fun:__mempcpy_inline

+   fun:_dl_allocate_tls_init

+   ...

+   fun:pthread_create@@GLIBC_2.2*

+   fun:pthread_create_WRK

+   fun:pthread_create@*

+}

+

 ####################################################

 # To do with GNU libgomp

 #