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-rw-r--r--arch/s390/include/asm/bug.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
new file mode 100644
index 000000000000..384e3621e341
--- /dev/null
+++ b/arch/s390/include/asm/bug.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_S390_BUG_H
+#define _ASM_S390_BUG_H
+
+#include <linux/kernel.h>
+
+#ifdef CONFIG_BUG
+
+#ifdef CONFIG_64BIT
+#define S390_LONG ".quad"
+#else
+#define S390_LONG ".long"
+#endif
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define __EMIT_BUG(x) do { \
+ asm volatile( \
+ "0: j 0b+2\n" \
+ "1:\n" \
+ ".section .rodata.str,\"aMS\",@progbits,1\n" \
+ "2: .asciz \""__FILE__"\"\n" \
+ ".previous\n" \
+ ".section __bug_table,\"a\"\n" \
+ "3:\t" S390_LONG "\t1b,2b\n" \
+ " .short %0,%1\n" \
+ " .org 3b+%2\n" \
+ ".previous\n" \
+ : : "i" (__LINE__), \
+ "i" (x), \
+ "i" (sizeof(struct bug_entry))); \
+} while (0)
+
+#else /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define __EMIT_BUG(x) do { \
+ asm volatile( \
+ "0: j 0b+2\n" \
+ "1:\n" \
+ ".section __bug_table,\"a\"\n" \
+ "2:\t" S390_LONG "\t1b\n" \
+ " .short %0\n" \
+ " .org 2b+%1\n" \
+ ".previous\n" \
+ : : "i" (x), \
+ "i" (sizeof(struct bug_entry))); \
+} while (0)
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG() __EMIT_BUG(0)
+
+#define WARN_ON(x) ({ \
+ int __ret_warn_on = !!(x); \
+ if (__builtin_constant_p(__ret_warn_on)) { \
+ if (__ret_warn_on) \
+ __EMIT_BUG(BUGFLAG_WARNING); \
+ } else { \
+ if (unlikely(__ret_warn_on)) \
+ __EMIT_BUG(BUGFLAG_WARNING); \
+ } \
+ unlikely(__ret_warn_on); \
+})
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
+#endif /* CONFIG_BUG */
+
+#include <asm-generic/bug.h>
+
+#endif /* _ASM_S390_BUG_H */

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