/* The task_finder_munmap_callback */
static int stap_uprobe_munmap_found (struct stap_task_finder_target *tgt, struct task_struct *tsk, unsigned long addr, unsigned long length) {
const struct stap_uprobe_tf *stf = container_of(tgt, struct stap_uprobe_tf, finder);
#ifdef DEBUG_TASK_FINDER_VMA
_stp_dbug (__FUNCTION__,__LINE__, "-mmap pid %d addr %p length %lu stf %p %p path %s\n", tsk->tgid, (void *) addr, length, tgt, stf, stf->pathname);
#endif
return stap_uprobe_change_minus (tsk, addr, length, stf);
}
/* The task_finder_callback we use for ET_DYN targets.
This just forces an unmap of everything as the process exits.
(PR11151) */
static int stap_uprobe_process_munmap (struct stap_task_finder_target *tgt, struct task_struct *tsk, int register_p, int process_p) {
const struct stap_uprobe_tf *stf = container_of(tgt, struct stap_uprobe_tf, finder);
if (! process_p) return 0; /* ignore threads */
dbug_task_vma (1, "%cproc pid %d stf %p %p path %s\n", register_p?'+':'-', tsk->tgid, tgt, stf, stf->pathname);
/* Covering 0->TASK_SIZE means "unmap everything" */
if (!register_p)
return stap_uprobe_change_minus (tsk, 0, TASK_SIZE, stf);
return 0;
}
/* The task_finder_callback we use for ET_DYN targets.
This just forces an unmap of everything as the process exits.
(PR11151) */
static int stap_uprobe_process_munmap (struct stap_task_finder_target *tgt, struct task_struct *tsk, int register_p, int process_p) {
const struct stap_uprobe_tf *stf = container_of(tgt, struct stap_uprobe_tf, finder);
if (! process_p) return 0; /* ignore threads */
#ifdef DEBUG_TASK_FINDER_VMA
_stp_dbug (__FUNCTION__,__LINE__, "%cproc pid %d stf %p %p path %s\n", register_p?'+':'-', tsk->tgid, tgt, stf, stf->pathname);
#endif
/* Covering 0->TASK_SIZE means "unmap everything" */
if (!register_p)
return stap_uprobe_change_minus (tsk, 0, TASK_SIZE, stf);
return 0;
}
/* The task_finder_callback we use for ET_EXEC targets.
We used to perform uprobe insertion/removal here, but not any more.
(PR10524) */
static int stap_uprobe_process_found (struct stap_task_finder_target *tgt, struct task_struct *tsk, int register_p, int process_p) {
const struct stap_uprobe_tf *stf = container_of(tgt, struct stap_uprobe_tf, finder);
if (! process_p) return 0; /* ignore threads */
dbug_task_vma(1, "%cproc pid %d stf %p %p path %s\n", register_p?'+':'-', tsk->tgid, tgt, stf, stf->pathname);
/* ET_EXEC events are like shlib events, but with 0 relocation bases */
if (register_p) {
int rc = stap_uprobe_change_plus (tsk, 0, TASK_SIZE, stf, 0, 0);
stap_uprobe_change_semaphore_plus (tsk, 0, TASK_SIZE, stf);
return rc;
} else
return stap_uprobe_change_minus (tsk, 0, TASK_SIZE, stf);
}
/* The task_finder_munmap_callback */
static int stap_uprobe_munmap_found (struct stap_task_finder_target *tgt, struct task_struct *tsk, unsigned long addr, unsigned long length) {
const struct stap_uprobe_tf *stf = container_of(tgt, struct stap_uprobe_tf, finder);
dbug_task_vma (1, "-mmap pid %d addr %p length %lu stf %p %p path %s\n", tsk->tgid, (void *) addr, length, tgt, stf, stf->pathname);
return stap_uprobe_change_minus (tsk, addr, length, stf);
}