1 # IMPORTANT: DO NOT EDIT glibc-2.X-helgrind.supp, as it is as a generated
2 # file. Instead edit glibc-2.X-helgrind.supp.in.
4 # FIXME 22 Jan 09: helgrind-glibc2X-005 overlaps with a lot of
5 # other stuff. They should be removed.
7 ##----------------------------------------------------------------------##
8 # Suppressions for the Helgrind tool when using
9 # a glibc-2.{3,4,5,6,7,8,9} system
11 ####################################################
13 # These are generic cover-alls which catch a lot of stuff
14 # in various combinations of ld, libc and libpthread
16 # Note this is heavyhanded and not very clever:
18 # - suppress anything that has its top frame in ld.so
19 # That's fine, since it's mostly dynamic linking stuff,
20 # which has various deliberate (harmless) races
22 # - suppress anything that has its top frame in libc.so.
23 # This really isn't clever, since it could hide some
24 # legitimate races. But the problem is, if we don't do
25 # this, then loads of errors to do with stdio are reported, because
26 # H fails to see glibc's internal locking/unlocking of FILE*s
27 # as required by POSIX. A better solution is needed.
29 # - some of the stdio functions in newer glibc manipulate stdio
30 # FILE*s state through mempcpy, which we intercept, so we also need
31 # to suppress such manipulations.
34 # helgrind-glibc2X-001
36 # obj:*/lib*/ld-2.*so*
39 # helgrind-glibc2X-002 was merged into helgrind-glibc2X-001
41 # helgrind-glibc2X-003 was merged into helgrind-glibc2X-001
50 helgrind-glibc-io-xsputn-mempcpy
61 obj:@GLIBC_LIBPTHREAD_PATH@
64 # helgrind-glibc2X-006 was merged into helgrind-glibc2X-005
66 # helgrind-glibc2X-007 was merged into helgrind-glibc2X-001
68 # helgrind-glibc2X-008 was merged into helgrind-glibc2X-004
70 # helgrind-glibc2X-009 was merged into helgrind-glibc2X-004
72 # helgrind-glibc2X-010 was merged into helgrind-glibc2X-001
74 # helgrind-glibc2X-011 was merged into helgrind-glibc2X-004
76 # helgrind-glibc2X-012 was merged into helgrind-glibc2X-001
78 # helgrind-glibc2X-013 was merged into helgrind-glibc2X-001
80 # helgrind-glibc2X-014 was merged into helgrind-glibc2X-001
82 # helgrind-glibc2X-015 was merged into helgrind-glibc2X-004
84 # helgrind-glibc2X-016 was merged into helgrind-glibc2X-004
86 # These are very ugly. They are needed to suppress errors inside (eg)
87 # NPTL's pthread_cond_signal. Why only one stack frame -- at least we
88 # should see the wrapper calling the real functions, right?
89 # Unfortunately, no: the real functions are handwritten assembly (in
90 # the glibc-2.5 sources) and does not create a proper stack frame.
91 # Therefore it's only one level of unwinding before we're back out in
92 # user code rather than the 2 levels you'd expect.
96 obj:@GLIBC_LIBPTHREAD_PATH@
103 obj:@GLIBC_LIBPTHREAD_PATH@
108 fun:pthread_cond_*@@GLIBC_2.*
118 fun:pthread_rwlock_*lock*
128 obj:@GLIBC_LIBPTHREAD_PATH@
144 obj:@GLIBC_LIBC_PATH@
155 fun:pthread_barrier_wait*
159 ####################################################
160 # qt4 specific (GNU mangling)
163 helgrind-qt4---QMutex::lock()-QMutex::lock()
166 fun:_ZN6QMutex4lockEv
167 fun:_ZN6QMutex4lockEv
171 helgrind-qt4---QMutex::unlock()-QMutex::unlock()
174 fun:_ZN6QMutex6unlockEv
175 fun:_ZN6QMutex6unlockEv
179 helgrind-qt4---pthread_setspecific-QThreadPrivate::start(void*)
181 fun:pthread_setspecific
182 fun:_ZN14QThreadPrivate5startEPv
186 ####################################################
189 # pthread_exit apparently calls some kind of unwind
190 # mechanism - maybe to remove some number of frames
191 # from the thread's stack, so as to get back to the
192 # outermost frame for the thread? Anyway..
195 helgrind---*Unwind*-...-pthread_exit
203 helgrind---...-*Unwind*-*pthread_unwind*
211 helgrind---...-*Unwind*-*pthread_unwind*
216 fun:_Unwind_Backtrace
222 ####################################################
223 # To do with thread stack allocation and deallocation?
226 helgrind---free_stacks-__deallocate_stack
229 fun:__deallocate_stack
233 helgrind---__deallocate_stack-start_thread-clone
235 fun:__deallocate_stack
241 ####################################################
242 # To do with pthread_{set,get}specific
245 helgrind---pthread_setspecific
247 fun:pthread_setspecific
251 helgrind---pthread_getspecific
253 fun:pthread_getspecific
257 ####################################################
258 # To do with dynamic linking
260 # helgrind---ld.so-...-dlsym was merged into helgrind-glibc2X-001
263 helgrind---_dl_allocate_tls
266 fun:_dl_allocate_tls_init
268 fun:pthread_create@@GLIBC_2.2*
269 fun:pthread_create_WRK
274 helgrind---_dl_allocate_tls2
278 fun:_dl_allocate_tls_init
280 fun:pthread_create@@GLIBC_2.2*
281 fun:pthread_create_WRK
285 ####################################################
286 # To do with GNU libgomp
289 helgrind---libgomp43-1
291 fun:gomp_ordered_sync
295 helgrind---libgomp43-1
297 fun:gomp_ordered_next
301 helgrind---libgomp43-1
303 fun:gomp_ordered_last