From: Guan Xuetao <guanxuetao@mprc.pku.edu.cn>
Patch 3 adds ptrace support.
Signed-off-by: Guan Xuetao <guanxuetao@mprc.pku.edu.cn>
---
arch/unicore32/include/asm/ptrace.h | 184 +++++++++++
arch/unicore32/kernel/ptrace.c | 600 +++++++++++++++++++++++++++++++++++
arch/unicore32/kernel/ptrace.h | 53 +++
3 files changed, 837 insertions(+), 0 deletions(-)
diff --git a/arch/unicore32/include/asm/ptrace.h b/arch/unicore32/include/asm/ptrace.h
new file mode 100644
index 0000000..57badd1
--- /dev/null
+++ b/arch/unicore32/include/asm/ptrace.h
@@ -0,0 +1,184 @@
+/*
+ * linux/arch/unicore32/include/asm/ptrace.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __UNICORE_PTRACE_H__
+#define __UNICORE_PTRACE_H__
+
+#include <asm/hwcap.h>
+
+#define PTRACE_GET_THREAD_AREA 22
+
+/*
+ * PSR bits
+ */
+#define USER_MODE 0x00000010
+#define REAL_MODE 0x00000011
+#define INTR_MODE 0x00000012
+#define PRIV_MODE 0x00000013
+#define ABRT_MODE 0x00000017
+#define EXTN_MODE 0x0000001b
+#define SUSR_MODE 0x0000001f
+#define MODE_MASK 0x0000001f
+#define PSR_R_BIT 0x00000040
+#define PSR_I_BIT 0x00000080
+#define PSR_V_BIT 0x10000000
+#define PSR_C_BIT 0x20000000
+#define PSR_Z_BIT 0x40000000
+#define PSR_S_BIT 0x80000000
+
+/*
+ * Groups of PSR bits
+ */
+#define PSR_f 0xff000000 /* Flags */
+#define PSR_c 0x000000ff /* Control */
+
+#ifndef __ASSEMBLY__
+
+/*
+ * This struct defines the way the registers are stored on the
+ * stack during a system call. Note that sizeof(struct pt_regs)
+ * has to be a multiple of 8.
+ */
+#ifndef __KERNEL__
+struct pt_regs {
+ long uregs[34];
+};
+#else /* __KERNEL__ */
+struct pt_regs {
+ unsigned long uregs[34];
+};
+#endif /* __KERNEL__ ...
