Import of Linux/MIPS 1.3.0

1 files changed, 32 insertions, 0 deletions

diff --git a/include/asm-sparc/ptrace.h b/include/asm-sparc/ptrace.h
new file mode 100644
index 000000000..70fb8d5df
--- /dev/null
+++ b/include/asm-sparc/ptrace.h
@@ -0,0 +1,32 @@
+#ifndef _SPARC_PTRACE_H
+#define _SPARC_PTRACE_H
+
+/* I have not looked enough into how this should be done. Without playing
+ * lots of tricks to optimize I think we need to save the whole register
+ * window frame plus the floating-point registers. We'll see...
+ */
+
+/* this struct defines the way the registers are stored on the 
+   stack during a system call. */
+
+struct pt_regs {
+	unsigned long ps;    /* previous supervisor, same as alpha I believe */
+	unsigned long pc;    /* current and next program counter */
+	unsigned long npc;
+	unsigned long sp;    /* stack and frame pointer */
+	unsigned long fp;
+	unsigned long psr;   /* for condition codes */
+	unsigned long nuwin; /* number of user windows */
+	/* not sure yet whether all regs are necessary
+	 * but this is how it is traditionally done on the sparc.
+	 */
+	unsigned long u_regs[24*16];
+	unsigned long f_regs[64];    /* yuck yuck yuck */
+};
+
+#ifdef __KERNEL__
+#define user_mode(regs) (0x0)  /* if previous supervisor is 0, came from user */
+extern void show_regs(struct pt_regs *);
+#endif
+
+#endif