sh: split out ptrace header for _32/_64 variants.

asm/ptrace.h is getting a bit messy, with the _32/_64-specific changes
being fairly insular. This splits out the header accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/arch/sh/include/asm/ptrace_32.h b/arch/sh/include/asm/ptrace_32.h
new file mode 100644
index 000000000000..35d9e257558c
--- /dev/null
+++ b/arch/sh/include/asm/ptrace_32.h
@@ -0,0 +1,83 @@
+#ifndef __ASM_SH_PTRACE_32_H
+#define __ASM_SH_PTRACE_32_H
+
+/*
+ * GCC defines register number like this:
+ * -----------------------------
+ *	 0 - 15 are integer registers
+ *	17 - 22 are control/special registers
+ *	24 - 39 fp registers
+ *	40 - 47 xd registers
+ *	48 -    fpscr register
+ * -----------------------------
+ *
+ * We follows above, except:
+ *	16 --- program counter (PC)
+ *	22 --- syscall #
+ *	23 --- floating point communication register
+ */
+#define REG_REG0	 0
+#define REG_REG15	15
+
+#define REG_PC		16
+
+#define REG_PR		17
+#define REG_SR		18
+#define REG_GBR		19
+#define REG_MACH	20
+#define REG_MACL	21
+
+#define REG_SYSCALL	22
+
+#define REG_FPREG0	23
+#define REG_FPREG15	38
+#define REG_XFREG0	39
+#define REG_XFREG15	54
+
+#define REG_FPSCR	55
+#define REG_FPUL	56
+
+/*
+ * This struct defines the way the registers are stored on the
+ * kernel stack during a system call or other kernel entry.
+ */
+struct pt_regs {
+	unsigned long regs[16];
+	unsigned long pc;
+	unsigned long pr;
+	unsigned long sr;
+	unsigned long gbr;
+	unsigned long mach;
+	unsigned long macl;
+	long tra;
+};
+
+/*
+ * This struct defines the way the DSP registers are stored on the
+ * kernel stack during a system call or other kernel entry.
+ */
+struct pt_dspregs {
+	unsigned long	a1;
+	unsigned long	a0g;
+	unsigned long	a1g;
+	unsigned long	m0;
+	unsigned long	m1;
+	unsigned long	a0;
+	unsigned long	x0;
+	unsigned long	x1;
+	unsigned long	y0;
+	unsigned long	y1;
+	unsigned long	dsr;
+	unsigned long	rs;
+	unsigned long	re;
+	unsigned long	mod;
+};
+
+#ifdef __KERNEL__
+
+#define MAX_REG_OFFSET		offsetof(struct pt_regs, tra)
+#define regs_return_value(regs)	((regs)->regs[0])
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_SH_PTRACE_32_H */