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authorJosh Stone <jistone@redhat.com>2013-01-13 19:03:34 +0100
committerOleg Nesterov <oleg@redhat.com>2013-02-08 17:47:13 +0100
commite8440c1458ba571bc3fac8a6beb53ff604199f5b (patch)
tree59abbd23435cd341250a028b4fa06826b7133fbe /kernel/ptrace.c
parentaf4355e91f15812df8608925738c91be57c580dd (diff)
downloadop-kernel-dev-e8440c1458ba571bc3fac8a6beb53ff604199f5b.zip
op-kernel-dev-e8440c1458ba571bc3fac8a6beb53ff604199f5b.tar.gz
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>
Diffstat (limited to 'kernel/ptrace.c')
-rw-r--r--kernel/ptrace.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 6cbeaae..acbd284 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -712,6 +712,12 @@ static int ptrace_regset(struct task_struct *task, int req, unsigned int type,
kiov->iov_len, kiov->iov_base);
}
+/*
+ * This is declared in linux/regset.h and defined in machine-dependent
+ * code. We put the export here, near the primary machine-neutral use,
+ * to ensure no machine forgets it.
+ */
+EXPORT_SYMBOL_GPL(task_user_regset_view);
#endif
int ptrace_request(struct task_struct *child, long request,
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