1 files changed, 121 insertions, 0 deletions

diff --git a/include/asm-v850/ptrace.h b/include/asm-v850/ptrace.h
new file mode 100644
index 000000000000..7bf72bb5078c
--- /dev/null
+++ b/include/asm-v850/ptrace.h
@@ -0,0 +1,121 @@
+/*
+ * include/asm-v850/ptrace.h -- Access to CPU registers
+ *
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef __V850_PTRACE_H__
+#define __V850_PTRACE_H__
+
+
+/* v850 general purpose registers with special meanings.  */
+#define GPR_ZERO        0       /* constant zero */
+#define GPR_ASM         1       /* reserved for assembler */
+#define GPR_SP          3       /* stack pointer */
+#define GPR_GP          4       /* global data pointer */
+#define GPR_TP          5       /* `text pointer' */
+#define GPR_EP          30      /* `element pointer' */
+#define GPR_LP          31      /* link pointer (current return address) */
+
+/* These aren't official names, but they make some code more descriptive.  */
+#define GPR_ARG0        6
+#define GPR_ARG1        7
+#define GPR_ARG2        8
+#define GPR_ARG3        9
+#define GPR_RVAL0       10
+#define GPR_RVAL1       11
+#define GPR_RVAL        GPR_RVAL0
+
+#define NUM_GPRS        32
+
+/* v850 `system' registers.  */
+#define SR_EIPC         0
+#define SR_EIPSW        1
+#define SR_FEPC         2
+#define SR_FEPSW        3
+#define SR_ECR          4
+#define SR_PSW          5
+#define SR_CTPC         16
+#define SR_CTPSW        17
+#define SR_DBPC         18
+#define SR_DBPSW        19
+#define SR_CTBP         20
+#define SR_DIR          21
+#define SR_ASID         23
+
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned long v850_reg_t;
+
+/* How processor state is stored on the stack during a syscall/signal.
+   If you change this structure, change the associated assembly-language
+   macros below too (PT_*)!  */
+struct pt_regs
+{
+        /* General purpose registers.  */
+        v850_reg_t gpr[NUM_GPRS];
+
+        v850_reg_t pc;          /* program counter */
+        v850_reg_t psw;         /* program status word */
+
+        /* Registers used by `callt' instruction:  */
+        v850_reg_t ctpc;        /* saved program counter */
+        v850_reg_t ctpsw;       /* saved psw */
+        v850_reg_t ctbp;        /* base pointer for callt table */
+
+        char kernel_mode;       /* 1 if in `kernel mode', 0 if user mode */
+};
+
+
+#define instruction_pointer(regs)       ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define user_mode(regs)                 (!(regs)->kernel_mode)
+
+/* When a struct pt_regs is used to save user state for a system call in
+   the kernel, the system call is stored in the space for R0 (since it's
+   never used otherwise, R0 being a constant 0).  Non-system-calls
+   simply store 0 there.  */
+#define PT_REGS_SYSCALL(regs)           (regs)->gpr[0]
+#define PT_REGS_SET_SYSCALL(regs, val)  ((regs)->gpr[0] = (val))
+
+#endif /* !__ASSEMBLY__ */
+
+
+/* The number of bytes used to store each register.  */
+#define _PT_REG_SIZE    4
+
+/* Offset of a general purpose register in a stuct pt_regs.  */
+#define PT_GPR(num)     ((num) * _PT_REG_SIZE)
+
+/* Offsets of various special registers & fields in a struct pt_regs.  */
+#define PT_PC           ((NUM_GPRS + 0) * _PT_REG_SIZE)
+#define PT_PSW          ((NUM_GPRS + 1) * _PT_REG_SIZE)
+#define PT_CTPC         ((NUM_GPRS + 2) * _PT_REG_SIZE)
+#define PT_CTPSW        ((NUM_GPRS + 3) * _PT_REG_SIZE)
+#define PT_CTBP         ((NUM_GPRS + 4) * _PT_REG_SIZE)
+#define PT_KERNEL_MODE  ((NUM_GPRS + 5) * _PT_REG_SIZE)
+
+/* Where the current syscall number is stashed; obviously only valid in
+   the kernel!  */
+#define PT_CUR_SYSCALL  PT_GPR(0)
+
+/* Size of struct pt_regs, including alignment.  */
+#define PT_SIZE         ((NUM_GPRS + 6) * _PT_REG_SIZE)
+
+
+/* These are `magic' values for PTRACE_PEEKUSR that return info about where
+   a process is located in memory.  */
+#define PT_TEXT_ADDR    (PT_SIZE + 1)
+#define PT_TEXT_LEN     (PT_SIZE + 2)
+#define PT_DATA_ADDR    (PT_SIZE + 3)
+
+
+#endif /* __V850_PTRACE_H__ */