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authorWolfgang Denk <wd@denx.de>2007-12-27 01:12:56 +0100
committerWolfgang Denk <wd@denx.de>2007-12-27 01:12:56 +0100
commit81b38be8631a0b809c97ab3d929f491373d7314f (patch)
tree0dd6444e2b602dcd06524f57c234b1f3b18ceb83 /include/asm-sh/ptrace.h
parentf77ac3d657e9b1d40012153e872a2118cca10a3d (diff)
parent29592ecba3b932b9b152bcec6c0c0806412db4a3 (diff)
downloadblackbird-obmc-uboot-81b38be8631a0b809c97ab3d929f491373d7314f.tar.gz
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Merge branch 'master' of git://www.denx.de/git/u-boot-sh
Conflicts: MAINTAINERS Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'include/asm-sh/ptrace.h')
-rw-r--r--include/asm-sh/ptrace.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h
new file mode 100644
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--- /dev/null
+++ b/include/asm-sh/ptrace.h
@@ -0,0 +1,112 @@
+#ifndef __ASM_SH_PTRACE_H
+#define __ASM_SH_PTRACE_H
+
+/*
+ * Copyright (C) 1999, 2000 Niibe Yutaka
+ * from linux kernel code.
+ */
+
+/*
+ * 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
+
+/* options set using PTRACE_SETOPTIONS */
+#define PTRACE_O_TRACESYSGOOD 0x00000001
+
+/*
+ * 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;
+};
+
+#define PTRACE_GETDSPREGS 55
+#define PTRACE_SETDSPREGS 56
+
+#ifdef __KERNEL__
+#define user_mode(regs) (((regs)->sr & 0x40000000)==0)
+#define instruction_pointer(regs) ((regs)->pc)
+extern void show_regs(struct pt_regs *);
+
+#ifdef CONFIG_SH_DSP
+#define task_pt_regs(task) \
+ ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
+ - sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1)
+#else
+#define task_pt_regs(task) \
+ ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
+ - sizeof(unsigned long)) - 1)
+#endif
+
+static inline unsigned long profile_pc(struct pt_regs *regs)
+{
+ unsigned long pc = instruction_pointer(regs);
+
+ if (pc >= 0xa0000000UL && pc < 0xc0000000UL)
+ pc -= 0x20000000;
+ return pc;
+}
+#endif
+
+#endif /* __ASM_SH_PTRACE_H */
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