diff options
Diffstat (limited to 'tapsets.cxx')
| -rw-r--r-- | tapsets.cxx | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tapsets.cxx b/tapsets.cxx index ed9e1d56..03239ad6 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -4623,6 +4623,7 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) //---------- s.op->newline() << "if (sups->sdt_sem_address != 0) {"; s.op->newline(1) << "size_t sdt_semaphore;"; + // XXX sups could get registered to more than one task! s.op->newline() << "sups->tsk = tsk;"; s.op->newline() << "__access_process_vm (tsk, relocation + sups->sdt_sem_address, &sdt_semaphore, sizeof (sdt_semaphore), 0);"; s.op->newline() << "sdt_semaphore += 1;"; @@ -4717,6 +4718,7 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) //---------- s.op->newline() << "if (sups->sdt_sem_address != 0) {"; s.op->newline(1) << "size_t sdt_semaphore;"; + // XXX sups could get registered to more than one task! s.op->newline() << "sups->tsk = tsk;"; s.op->newline() << "__access_process_vm (tsk, sups->sdt_sem_address, &sdt_semaphore, sizeof (sdt_semaphore), 0);"; s.op->newline() << "sdt_semaphore += 1;"; @@ -4850,6 +4852,7 @@ uprobe_derived_probe_group::emit_module_exit (systemtap_session& s) //---------- s.op->newline() << "if (sups->sdt_sem_address != 0) {"; s.op->newline(1) << "size_t sdt_semaphore;"; + // XXX sups could get registered to more than one task! s.op->newline() << "__access_process_vm (sups->tsk, sups->sdt_sem_address, &sdt_semaphore, sizeof (sdt_semaphore), 0);"; s.op->newline() << "sdt_semaphore -= 1;"; s.op->newline() << "__access_process_vm (sups->tsk, sups->sdt_sem_address, &sdt_semaphore, sizeof (sdt_semaphore), 1);"; |