1 files changed, 148 insertions, 0 deletions

diff --git a/arch/m32r/include/asm/ptrace.h b/arch/m32r/include/asm/ptrace.h
new file mode 100644
index 000000000000..a0755b982028
--- /dev/null
+++ b/arch/m32r/include/asm/ptrace.h
@@ -0,0 +1,148 @@
+#ifndef _ASM_M32R_PTRACE_H
+#define _ASM_M32R_PTRACE_H
+
+/*
+ * linux/include/asm-m32r/ptrace.h
+ *
+ * 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.
+ *
+ * M32R version:
+ *   Copyright (C) 2001-2002, 2004  Hirokazu Takata <takata at linux-m32r.org>
+ */
+
+/* 0 - 13 are integer registers (general purpose registers).  */
+#define PT_R4           0
+#define PT_R5           1
+#define PT_R6           2
+#define PT_REGS         3
+#define PT_R0           4
+#define PT_R1           5
+#define PT_R2           6
+#define PT_R3           7
+#define PT_R7           8
+#define PT_R8           9
+#define PT_R9           10
+#define PT_R10          11
+#define PT_R11          12
+#define PT_R12          13
+#define PT_SYSCNR       14
+#define PT_R13          PT_FP
+#define PT_R14          PT_LR
+#define PT_R15          PT_SP
+
+/* processor status and miscellaneous context registers.  */
+#define PT_ACC0H        15
+#define PT_ACC0L        16
+#define PT_ACC1H        17      /* ISA_DSP_LEVEL2 only */
+#define PT_ACC1L        18      /* ISA_DSP_LEVEL2 only */
+#define PT_PSW          19
+#define PT_BPC          20
+#define PT_BBPSW        21
+#define PT_BBPC         22
+#define PT_SPU          23
+#define PT_FP           24
+#define PT_LR           25
+#define PT_SPI          26
+#define PT_ORIGR0       27
+
+/* virtual pt_reg entry for gdb */
+#define PT_PC           30
+#define PT_CBR          31
+#define PT_EVB          32
+
+
+/* Control registers.  */
+#define SPR_CR0 PT_PSW
+#define SPR_CR1 PT_CBR          /* read only */
+#define SPR_CR2 PT_SPI
+#define SPR_CR3 PT_SPU
+#define SPR_CR4
+#define SPR_CR5 PT_EVB          /* part of M32R/E, M32R/I core only */
+#define SPR_CR6 PT_BPC
+#define SPR_CR7
+#define SPR_CR8 PT_BBPSW
+#define SPR_CR9
+#define SPR_CR10
+#define SPR_CR11
+#define SPR_CR12
+#define SPR_CR13 PT_WR
+#define SPR_CR14 PT_BBPC
+#define SPR_CR15
+
+/* this struct defines the way the registers are stored on the
+   stack during a system call. */
+struct pt_regs {
+        /* Saved main processor registers. */
+        unsigned long r4;
+        unsigned long r5;
+        unsigned long r6;
+        struct pt_regs *pt_regs;
+        unsigned long r0;
+        unsigned long r1;
+        unsigned long r2;
+        unsigned long r3;
+        unsigned long r7;
+        unsigned long r8;
+        unsigned long r9;
+        unsigned long r10;
+        unsigned long r11;
+        unsigned long r12;
+        long syscall_nr;
+
+        /* Saved main processor status and miscellaneous context registers. */
+        unsigned long acc0h;
+        unsigned long acc0l;
+        unsigned long acc1h;    /* ISA_DSP_LEVEL2 only */
+        unsigned long acc1l;    /* ISA_DSP_LEVEL2 only */
+        unsigned long psw;
+        unsigned long bpc;              /* saved PC for TRAP syscalls */
+        unsigned long bbpsw;
+        unsigned long bbpc;
+        unsigned long spu;              /* saved user stack */
+        unsigned long fp;
+        unsigned long lr;               /* saved PC for JL syscalls */
+        unsigned long spi;              /* saved kernel stack */
+        unsigned long orig_r0;
+};
+
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS          12
+#define PTRACE_SETREGS          13
+
+#define PTRACE_OLDSETOPTIONS    21
+
+/* options set using PTRACE_SETOPTIONS */
+#define PTRACE_O_TRACESYSGOOD   0x00000001
+
+#ifdef __KERNEL__
+
+#include <asm/m32r.h>           /* M32R_PSW_BSM, M32R_PSW_BPM */
+
+struct task_struct;
+extern void init_debug_traps(struct task_struct *);
+#define arch_ptrace_attach(child) \
+        init_debug_traps(child)
+
+#if defined(CONFIG_ISA_M32R2) || defined(CONFIG_CHIP_VDEC2)
+#define user_mode(regs) ((M32R_PSW_BPM & (regs)->psw) != 0)
+#elif defined(CONFIG_ISA_M32R)
+#define user_mode(regs) ((M32R_PSW_BSM & (regs)->psw) != 0)
+#else
+#error unknown isa configuration
+#endif
+
+#define instruction_pointer(regs) ((regs)->bpc)
+#define profile_pc(regs) instruction_pointer(regs)
+
+extern void show_regs(struct pt_regs *);
+
+extern void withdraw_debug_trap(struct pt_regs *regs);
+
+#define task_pt_regs(task) \
+        ((struct pt_regs *)(task_stack_page(task) + THREAD_SIZE) - 1)
+
+#endif /* __KERNEL */
+
+#endif /* _ASM_M32R_PTRACE_H */