diff options
Diffstat (limited to 'runtime/task_finder.c')
| -rw-r--r-- | runtime/task_finder.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/runtime/task_finder.c b/runtime/task_finder.c index 928b7087..b483cf23 100644 --- a/runtime/task_finder.c +++ b/runtime/task_finder.c @@ -317,7 +317,7 @@ __stp_get_mm_path(struct mm_struct *mm, char *buf, int buflen) | UTRACE_EVENT(SYSCALL_ENTRY) \ | UTRACE_EVENT(SYSCALL_EXIT)) -#define __STP_ATTACHED_TASK_VM_EVENTS (__STP_ATTACHED_TASK_VM_BASE_EVENTS \ +#define __STP_ATTACHED_TASK_VM_EVENTS (__STP_ATTACHED_TASK_BASE_EVENTS \ | UTRACE_ACTION_QUIESCE \ | UTRACE_EVENT(QUIESCE)) @@ -608,7 +608,7 @@ __stp_utrace_task_finder_target_quiesce(struct utrace_attached_engine *engine, { struct stap_task_finder_target *tgt = engine->data; - // Turn off quiesce handling. + // Turn off quiesce handling (and turn on syscall handling). utrace_set_flags(tsk, engine, __STP_ATTACHED_TASK_VM_BASE_EVENTS); if (atomic_read(&__stp_task_finder_state) != __STP_TF_RUNNING) { @@ -717,6 +717,7 @@ __stp_utrace_task_finder_target_syscall_entry(struct utrace_attached_engine *eng // FIXME: do we need to handle mremap()? syscall_no = __stp_user_syscall_nr(regs); if (syscall_no != MMAP_SYSCALL_NO(tsk) + && syscall_no != MMAP2_SYSCALL_NO(tsk) && syscall_no != MPROTECT_SYSCALL_NO(tsk) && syscall_no != MUNMAP_SYSCALL_NO(tsk)) return UTRACE_ACTION_RESUME; @@ -815,6 +816,7 @@ __stp_utrace_task_finder_target_syscall_exit(struct utrace_attached_engine *engi // FIXME: do we need to handle mremap()? syscall_no = __stp_user_syscall_nr(regs); if (syscall_no != MMAP_SYSCALL_NO(tsk) + && syscall_no != MMAP2_SYSCALL_NO(tsk) && syscall_no != MPROTECT_SYSCALL_NO(tsk) && syscall_no != MUNMAP_SYSCALL_NO(tsk)) return UTRACE_ACTION_RESUME; @@ -841,10 +843,11 @@ __stp_utrace_task_finder_target_syscall_exit(struct utrace_attached_engine *engi "tsk %d found %s(0x%lx), returned 0x%lx\n", tsk->pid, ((syscall_no == MMAP_SYSCALL_NO(tsk)) ? "mmap" - : ((syscall_no == MPROTECT_SYSCALL_NO(tsk)) ? "mprotect" - : ((syscall_no == MUNMAP_SYSCALL_NO(tsk)) ? "munmap" - : "UNKNOWN"))), - arg0, rv); + : ((syscall_no == MMAP2_SYSCALL_NO(tsk)) ? "mmap2" + : ((syscall_no == MPROTECT_SYSCALL_NO(tsk)) ? "mprotect" + : ((syscall_no == MUNMAP_SYSCALL_NO(tsk)) ? "munmap" + : "UNKNOWN"))), + arg0, rv); #endif // Try to find the vma info we might have saved. |