summaryrefslogtreecommitdiffstats
path: root/include/asm-ppc/bug.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-ppc/bug.h')
-rw-r--r--include/asm-ppc/bug.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/asm-ppc/bug.h b/include/asm-ppc/bug.h
new file mode 100644
index 0000000..e99c6cb
--- /dev/null
+++ b/include/asm-ppc/bug.h
@@ -0,0 +1,55 @@
+#ifndef _PPC_BUG_H
+#define _PPC_BUG_H
+
+struct bug_entry {
+ unsigned long bug_addr;
+ int line;
+ const char *file;
+ const char *function;
+};
+
+/*
+ * If this bit is set in the line number it means that the trap
+ * is for WARN_ON rather than BUG or BUG_ON.
+ */
+#define BUG_WARNING_TRAP 0x1000000
+
+#define BUG() do { \
+ __asm__ __volatile__( \
+ "1: twi 31,0,0\n" \
+ ".section __bug_table,\"a\"\n\t" \
+ " .long 1b,%0,%1,%2\n" \
+ ".previous" \
+ : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
+} while (0)
+
+#define BUG_ON(x) do { \
+ if (!__builtin_constant_p(x) || (x)) { \
+ __asm__ __volatile__( \
+ "1: twnei %0,0\n" \
+ ".section __bug_table,\"a\"\n\t" \
+ " .long 1b,%1,%2,%3\n" \
+ ".previous" \
+ : : "r" (x), "i" (__LINE__), "i" (__FILE__), \
+ "i" (__FUNCTION__)); \
+ } \
+} while (0)
+
+#define WARN_ON(x) do { \
+ if (!__builtin_constant_p(x) || (x)) { \
+ __asm__ __volatile__( \
+ "1: twnei %0,0\n" \
+ ".section __bug_table,\"a\"\n\t" \
+ " .long 1b,%1,%2,%3\n" \
+ ".previous" \
+ : : "r" (x), "i" (__LINE__ + BUG_WARNING_TRAP), \
+ "i" (__FILE__), "i" (__FUNCTION__)); \
+ } \
+} while (0)
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_BUG_ON
+#define HAVE_ARCH_WARN_ON
+#include <asm-generic/bug.h>
+
+#endif
OpenPOWER on IntegriCloud