1
2# FIXME 22 Jan 09: helgrind-glibc2X-005 overlaps with a lot of
3# other stuff.  They should be removed.
4
5##----------------------------------------------------------------------##
6# Suppressions for the Helgrind tool when using
7# a glibc-2.{3,4,5,6,7,8,9} system
8
9####################################################
10# glibc-2.X specific
11# These are generic cover-alls which catch a lot of stuff
12# in various combinations of ld, libc and libpthread
13#
14# Note this is heavyhanded and not very clever:
15#
16# - suppress anything that has its top frame in ld.so
17#   That's fine, since it's mostly dynamic linking stuff,
18#   which has various deliberate (harmless) races
19#
20# - suppress anything that has its top frame in libc.so.
21#   This really isn't clever, since it could hide some
22#   legitimate races.  But the problem is, if we don't do
23#   this, then loads of errors to do with stdio are reported, because
24#   H fails to see glibc's internal locking/unlocking of FILE*s
25#   as required by POSIX.  A better solution is needed.
26#
27# - some of the stdio functions in newer glibc manipulate stdio
28#   FILE*s state through mempcpy, which we intercept, so we also need
29#   to suppress such manipulations.
30
31#{
32#   helgrind-glibc2X-001
33#   Helgrind:Race
34#   obj:*/lib*/ld-2.*so*
35#}
36
37# helgrind-glibc2X-002 was merged into helgrind-glibc2X-001
38
39# helgrind-glibc2X-003 was merged into helgrind-glibc2X-001
40
41{
42   helgrind-glibc2X-004
43   Helgrind:Race
44   obj:*/lib*/libc-2.*so*
45}
46
47{
48   helgrind-glibc-io-xsputn-mempcpy
49   Helgrind:Race
50   fun:__GI_mempcpy
51   fun:_IO_*xsputn*
52   obj:*/lib*/libc-2.*so*
53}
54
55{
56   helgrind-glibc2X-005
57   Helgrind:Race
58   obj:*/lib*/libpthread-2.*so*
59}
60
61# helgrind-glibc2X-006 was merged into helgrind-glibc2X-005
62
63# helgrind-glibc2X-007 was merged into helgrind-glibc2X-001
64
65# helgrind-glibc2X-008 was merged into helgrind-glibc2X-004
66
67# helgrind-glibc2X-009 was merged into helgrind-glibc2X-004
68
69# helgrind-glibc2X-010 was merged into helgrind-glibc2X-001
70
71# helgrind-glibc2X-011 was merged into helgrind-glibc2X-004
72
73# helgrind-glibc2X-012 was merged into helgrind-glibc2X-001
74
75# helgrind-glibc2X-013 was merged into helgrind-glibc2X-001
76
77# helgrind-glibc2X-014 was merged into helgrind-glibc2X-001
78
79# helgrind-glibc2X-015 was merged into helgrind-glibc2X-004
80
81# helgrind-glibc2X-016 was merged into helgrind-glibc2X-004
82
83# These are very ugly.  They are needed to suppress errors inside (eg)
84# NPTL's pthread_cond_signal.  Why only one stack frame -- at least we
85# should see the wrapper calling the real functions, right?
86# Unfortunately, no: the real functions are handwritten assembly (in
87# the glibc-2.5 sources) and does not create a proper stack frame.
88# Therefore it's only one level of unwinding before we're back out in
89# user code rather than the 2 levels you'd expect.
90{
91   helgrind-glibc2X-101
92   Helgrind:Race
93   obj:*/lib*/libpthread-2.*so*
94   fun:pthread_*
95}
96{
97   helgrind-glibc2X-102
98   Helgrind:Race
99   fun:mythread_wrapper
100   obj:*/lib*/libpthread-2.*so*
101}
102{
103   helgrind-glibc2X-103
104   Helgrind:Race
105   fun:pthread_cond_*@@GLIBC_2.*
106}
107{
108   helgrind-glibc2X-104
109   Helgrind:Race
110   fun:__lll_mutex_*
111}
112{
113   helgrind-glibc2X-105
114   Helgrind:Race
115   fun:pthread_rwlock_*lock*
116}
117{
118   helgrind-glibc2X-106
119   Helgrind:Race
120   fun:__lll_lock_wait
121}
122{
123   helgrind-glibc2X-107
124   Helgrind:Race
125   obj:*/lib*/libpthread-2.*so*
126   fun:sem_*
127}
128{
129   helgrind-glibc2X-108
130   Helgrind:Race
131   fun:clone
132}
133{
134   helgrind-glibc2X-109
135   Helgrind:Race
136   fun:start_thread
137}
138{
139   helgrind-glibc2X-110
140   Helgrind:Race
141   obj:*/lib*/libc-2.*so*
142   fun:pthread_*
143}
144{
145   helgrind-glibc2X-111
146   Helgrind:Race
147   fun:__lll_*lock_*
148}
149{
150   helgrind-glibc2X-113
151   Helgrind:Race
152   fun:pthread_barrier_wait*
153}
154
155
156####################################################
157# qt4 specific (GNU mangling)
158#
159{
160   helgrind-qt4---QMutex::lock()-QMutex::lock()
161   Helgrind:Race
162   ...
163   fun:_ZN6QMutex4lockEv
164   fun:_ZN6QMutex4lockEv
165}
166
167{
168   helgrind-qt4---QMutex::unlock()-QMutex::unlock()
169   Helgrind:Race
170   ...
171   fun:_ZN6QMutex6unlockEv
172   fun:_ZN6QMutex6unlockEv
173}
174
175{
176   helgrind-qt4---pthread_setspecific-QThreadPrivate::start(void*)
177   Helgrind:Race
178   fun:pthread_setspecific
179   fun:_ZN14QThreadPrivate5startEPv
180}
181
182
183####################################################
184# Other stuff.
185#
186# pthread_exit apparently calls some kind of unwind
187# mechanism - maybe to remove some number of frames
188# from the thread's stack, so as to get back to the
189# outermost frame for the thread?  Anyway..
190
191{
192   helgrind---*Unwind*-...-pthread_exit
193   Helgrind:Race
194   fun:*Unwind*
195   ...
196   fun:pthread_exit
197}
198
199{
200   helgrind---...-*Unwind*-*pthread_unwind*
201   Helgrind:Race
202   ...
203   fun:*Unwind*
204   fun:*pthread_unwind*
205}
206
207{
208   helgrind---...-*Unwind*-*pthread_unwind*
209   Helgrind:Race
210   ...
211   fun:_Unwind*
212   ...
213   fun:_Unwind_Backtrace
214}
215
216
217
218
219####################################################
220# To do with thread stack allocation and deallocation?
221#
222{
223   helgrind---free_stacks-__deallocate_stack
224   Helgrind:Race
225   fun:free_stacks
226   fun:__deallocate_stack
227}
228
229{
230   helgrind---__deallocate_stack-start_thread-clone
231   Helgrind:Race
232   fun:__deallocate_stack
233   fun:start_thread
234   fun:clone
235}
236
237
238####################################################
239# To do with pthread_{set,get}specific
240#
241{
242   helgrind---pthread_setspecific
243   Helgrind:Race
244   fun:pthread_setspecific
245}
246
247{
248   helgrind---pthread_getspecific
249   Helgrind:Race
250   fun:pthread_getspecific
251}
252
253
254####################################################
255# To do with dynamic linking
256#
257# helgrind---ld.so-...-dlsym was merged into helgrind-glibc2X-001
258
259{
260   helgrind---_dl_allocate_tls
261   Helgrind:Race
262   fun:mempcpy
263   fun:_dl_allocate_tls_init
264   ...
265   fun:pthread_create@@GLIBC_2.2*
266   fun:pthread_create_WRK
267   fun:pthread_create@*
268}
269
270####################################################
271# To do with GNU libgomp
272#
273{
274   helgrind---libgomp43-1
275   Helgrind:Race
276   fun:gomp_ordered_sync
277}
278
279{
280   helgrind---libgomp43-1
281   Helgrind:Race
282   fun:gomp_ordered_next
283}
284
285{
286   helgrind---libgomp43-1
287   Helgrind:Race
288   fun:gomp_ordered_last
289}
290