diff options
Diffstat (limited to 'arch/score/include/asm/ptrace.h')
-rw-r--r-- | arch/score/include/asm/ptrace.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/score/include/asm/ptrace.h b/arch/score/include/asm/ptrace.h new file mode 100644 index 00000000000..1a4900ac49f --- /dev/null +++ b/arch/score/include/asm/ptrace.h @@ -0,0 +1,87 @@ +#ifndef _ASM_SCORE_PTRACE_H +#define _ASM_SCORE_PTRACE_H + +#define PC 32 +#define CONDITION 33 +#define ECR 34 +#define EMA 35 +#define CEH 36 +#define CEL 37 +#define COUNTER 38 +#define LDCR 39 +#define STCR 40 +#define PSR 41 + +#define SINGLESTEP16_INSN 0x7006 +#define SINGLESTEP32_INSN 0x840C8000 +#define BREAKPOINT16_INSN 0x7002 /* work on SPG300 */ +#define BREAKPOINT32_INSN 0x84048000 /* work on SPG300 */ + +/* Define instruction mask */ +#define INSN32_MASK 0x80008000 + +#define J32 0x88008000 /* 1_00010_0000000000_1_000000000000000 */ +#define J32M 0xFC008000 /* 1_11111_0000000000_1_000000000000000 */ + +#define B32 0x90008000 /* 1_00100_0000000000_1_000000000000000 */ +#define B32M 0xFC008000 +#define BL32 0x90008001 /* 1_00100_0000000000_1_000000000000001 */ +#define BL32M B32 +#define BR32 0x80008008 /* 1_00000_0000000000_1_00000000_000100_0 */ +#define BR32M 0xFFE0807E +#define BRL32 0x80008009 /* 1_00000_0000000000_1_00000000_000100_1 */ +#define BRL32M BR32M + +#define B32_SET (J32 | B32 | BL32 | BR32 | BRL32) + +#define J16 0x3000 /* 0_011_....... */ +#define J16M 0xF000 +#define B16 0x4000 /* 0_100_....... */ +#define B16M 0xF000 +#define BR16 0x0004 /* 0_000.......0100 */ +#define BR16M 0xF00F +#define B16_SET (J16 | B16 | BR16) + + +/* + * This struct defines the way the registers are stored on the stack during a + * system call/exception. As usual the registers k0/k1 aren't being saved. + */ +struct pt_regs { + unsigned long pad0[6]; + unsigned long orig_r4; + unsigned long orig_r7; + unsigned long regs[32]; + + unsigned long cel; + unsigned long ceh; + + unsigned long sr0; /* cnt */ + unsigned long sr1; /* lcr */ + unsigned long sr2; /* scr */ + + unsigned long cp0_epc; + unsigned long cp0_ema; + unsigned long cp0_psr; + unsigned long cp0_ecr; + unsigned long cp0_condition; + + long is_syscall; +}; + +#ifdef __KERNEL__ + +/* + * Does the process account for user or for system time? + */ +#define user_mode(regs) ((regs->cp0_psr & 8) == 8) + +#define instruction_pointer(regs) (0) +#define profile_pc(regs) instruction_pointer(regs) + +extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit); +extern int read_tsk_long(struct task_struct *, unsigned long, unsigned long *); +extern void clear_single_step(struct task_struct *); +#endif + +#endif /* _ASM_SCORE_PTRACE_H */ |