1 files changed, 71 insertions, 0 deletions
diff --git a/arch/um/sys-i386/sigcontext.c b/arch/um/sys-i386/sigcontext.c
new file mode 100644
index 0000000..467d489
--- /dev/null
+++ b/arch/um/sys-i386/sigcontext.c
@@ -0,0 +1,71 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <stddef.h>
+#include <string.h>
+#include <asm/ptrace.h>
+#include <asm/sigcontext.h>
+#include "sysdep/ptrace.h"
+#include "kern_util.h"
+
+void sc_to_sc(void *to_ptr, void *from_ptr)
+{
+	struct sigcontext *to = to_ptr, *from = from_ptr;
+
+	memcpy(to, from, sizeof(*to) + sizeof(struct _fpstate));
+	if(from->fpstate != NULL)
+		to->fpstate = (struct _fpstate *) (to + 1);
+}
+
+unsigned long *sc_sigmask(void *sc_ptr)
+{
+	struct sigcontext *sc = sc_ptr;
+	return &sc->oldmask;
+}
+
+int sc_get_fpregs(unsigned long buf, void *sc_ptr)
+{
+	struct sigcontext *sc = sc_ptr;
+	struct _fpstate *from = sc->fpstate, *to = (struct _fpstate *) buf;
+	int err = 0;
+
+	if(from == NULL){
+		err |= clear_user_proc(&to->cw, sizeof(to->cw));
+		err |= clear_user_proc(&to->sw, sizeof(to->sw));
+		err |= clear_user_proc(&to->tag, sizeof(to->tag));
+		err |= clear_user_proc(&to->ipoff, sizeof(to->ipoff));
+		err |= clear_user_proc(&to->cssel, sizeof(to->cssel));
+		err |= clear_user_proc(&to->dataoff, sizeof(to->dataoff));
+		err |= clear_user_proc(&to->datasel, sizeof(to->datasel));
+		err |= clear_user_proc(&to->_st, sizeof(to->_st));
+	}
+	else {
+		err |= copy_to_user_proc(&to->cw, &from->cw, sizeof(to->cw));
+		err |= copy_to_user_proc(&to->sw, &from->sw, sizeof(to->sw));
+		err |= copy_to_user_proc(&to->tag, &from->tag, 
+					 sizeof(to->tag));
+		err |= copy_to_user_proc(&to->ipoff, &from->ipoff, 
+					 sizeof(to->ipoff));
+		err |= copy_to_user_proc(&to->cssel,& from->cssel, 
+					 sizeof(to->cssel));
+		err |= copy_to_user_proc(&to->dataoff, &from->dataoff, 
+				    sizeof(to->dataoff));
+		err |= copy_to_user_proc(&to->datasel, &from->datasel, 
+				    sizeof(to->datasel));
+		err |= copy_to_user_proc(to->_st, from->_st, sizeof(to->_st));
+	}
+	return(err);
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */