x86, um: ... and asm-x86 move

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
new file mode 100644
index 000000000000..91ad43a54c47
--- /dev/null
+++ b/arch/x86/include/asm/bug.h
@@ -0,0 +1,39 @@
+#ifndef ASM_X86__BUG_H
+#define ASM_X86__BUG_H
+
+#ifdef CONFIG_BUG
+#define HAVE_ARCH_BUG
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#ifdef CONFIG_X86_32
+# define __BUG_C0       "2:\t.long 1b, %c0\n"
+#else
+# define __BUG_C0       "2:\t.quad 1b, %c0\n"
+#endif
+
+#define BUG()                                                   \
+do {                                                            \
+        asm volatile("1:\tud2\n"                                \
+                     ".pushsection __bug_table,\"a\"\n"         \
+                     __BUG_C0                                   \
+                     "\t.word %c1, 0\n"                         \
+                     "\t.org 2b+%c2\n"                          \
+                     ".popsection"                              \
+                     : : "i" (__FILE__), "i" (__LINE__),        \
+                     "i" (sizeof(struct bug_entry)));           \
+        for (;;) ;                                              \
+} while (0)
+
+#else
+#define BUG()                                                   \
+do {                                                            \
+        asm volatile("ud2");                                    \
+        for (;;) ;                                              \
+} while (0)
+#endif
+
+#endif /* !CONFIG_BUG */
+
+#include <asm-generic/bug.h>
+#endif /* ASM_X86__BUG_H */