1 files changed, 31 insertions, 0 deletions

diff --git a/arch/x86/um/shared/sysdep/mcontext.h b/arch/x86/um/shared/sysdep/mcontext.h
new file mode 100644
index 00000000000..b724c54da31
--- /dev/null
+++ b/arch/x86/um/shared/sysdep/mcontext.h
@@ -0,0 +1,31 @@
+/* 
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __SYS_SIGCONTEXT_X86_H
+#define __SYS_SIGCONTEXT_X86_H
+
+extern void get_regs_from_mc(struct uml_pt_regs *, mcontext_t *);
+
+#ifdef __i386__
+
+#define GET_FAULTINFO_FROM_MC(fi, mc) \
+        { \
+                (fi).cr2 = (mc)->cr2; \
+                (fi).error_code = (mc)->gregs[REG_ERR]; \
+                (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \
+        }
+
+#else
+
+#define GET_FAULTINFO_FROM_MC(fi, mc) \
+        { \
+                (fi).cr2 = (mc)->gregs[REG_CR2]; \
+                (fi).error_code = (mc)->gregs[REG_ERR]; \
+                (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \
+        }
+
+#endif
+
+#endif