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authorPaul Mundt <lethal@linux-sh.org>2007-05-01 16:33:10 +0900
committerPaul Mundt <lethal@hera.kernel.org>2007-05-07 02:11:57 +0000
commit3a2e117e220f000f95187ea1e1bbe83b0ed5fdfb (patch)
tree57fab5755138283793647b5d0d2a2c872f00a430 /include/asm-sh/kdebug.h
parent3dde7a3c74bcc25c6fc31b836fec8c91fb0b2b8f (diff)
sh: Add die chain notifiers.
Add the atomic die chains in, kprobes needs these. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/kdebug.h')
-rw-r--r--include/asm-sh/kdebug.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/asm-sh/kdebug.h b/include/asm-sh/kdebug.h
new file mode 100644
index 000000000000..ef009baf5a11
--- /dev/null
+++ b/include/asm-sh/kdebug.h
@@ -0,0 +1,35 @@
+#ifndef __ASM_SH_KDEBUG_H
+#define __ASM_SH_KDEBUG_H
+
+#include <linux/notifier.h>
+
+struct pt_regs;
+
+struct die_args {
+ struct pt_regs *regs;
+ int trapnr;
+};
+
+int register_die_notifier(struct notifier_block *nb);
+int unregister_die_notifier(struct notifier_block *nb);
+int register_page_fault_notifier(struct notifier_block *nb);
+int unregister_page_fault_notifier(struct notifier_block *nb);
+extern struct atomic_notifier_head shdie_chain;
+
+/* Grossly misnamed. */
+enum die_val {
+ DIE_TRAP,
+ DIE_PAGE_FAULT,
+};
+
+static inline int notify_die(enum die_val val, struct pt_regs *regs,
+ int trap, int sig)
+{
+ struct die_args args = {
+ .regs = regs,
+ .trapnr = trap,
+ };
+
+ return atomic_notifier_call_chain(&shdie_chain, val, &args);
+}
+#endif /* __ASM_SH_KDEBUG_H */