uprobes: Add exports for module use
The original pull message for uprobes (commit 654443e2) noted:
This tree includes uprobes support in 'perf probe' - but SystemTap
(and other tools) can take advantage of user probe points as well.
In order to actually be usable in module-based tools like SystemTap, the
interface needs to be exported. This patch first adds the obvious
exports for uprobe_register and uprobe_unregister. Then it also adds
one for task_user_regset_view, which is necessary to get the correct
state of userspace registers.
Signed-off-by: Josh Stone <jistone@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index f6c7062..221fc58 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -27,6 +27,7 @@
#include <linux/pagemap.h> /* read_mapping_page */
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/export.h>
#include <linux/rmap.h> /* anon_vma_prepare */
#include <linux/mmu_notifier.h> /* set_pte_at_notify */
#include <linux/swap.h> /* try_to_free_swap */
@@ -851,6 +852,7 @@
goto retry;
return ret;
}
+EXPORT_SYMBOL_GPL(uprobe_register);
/*
* uprobe_unregister - unregister a already registered probe.
@@ -871,6 +873,7 @@
up_write(&uprobe->register_rwsem);
put_uprobe(uprobe);
}
+EXPORT_SYMBOL_GPL(uprobe_unregister);
static int unapply_uprobe(struct uprobe *uprobe, struct mm_struct *mm)
{
