[deliverable/linux.git] / arch / sparc / include / asm / ptrace.h

#ifndef __SPARC_PTRACE_H
#define __SPARC_PTRACE_H

#include <uapi/asm/ptrace.h>

#if defined(__sparc__) && defined(__arch64__)
#ifndef __ASSEMBLY__

#include <linux/threads.h>
#include <asm/switch_to.h>

static inline int pt_regs_trap_type(struct pt_regs *regs)
{
	return regs->magic & 0x1ff;
}

static inline bool pt_regs_is_syscall(struct pt_regs *regs)
{
	return (regs->tstate & TSTATE_SYSCALL);
}

static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
{
	return (regs->tstate &= ~TSTATE_SYSCALL);
}

#define arch_ptrace_stop_needed(exit_code, info) \
({	flush_user_windows(); \
	get_thread_wsaved() != 0; \
})

#define arch_ptrace_stop(exit_code, info) \
	synchronize_user_stack()

struct global_reg_snapshot {
	unsigned long		tstate;
	unsigned long		tpc;
	unsigned long		tnpc;
	unsigned long		o7;
	unsigned long		i7;
	unsigned long		rpc;
	struct thread_info	*thread;
	unsigned long		pad1;
};
extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS];

#define force_successful_syscall_return() set_thread_noerror(1)
#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
#define instruction_pointer(regs) ((regs)->tpc)
#define instruction_pointer_set(regs, val) ((regs)->tpc = (val))
#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
static inline int is_syscall_success(struct pt_regs *regs)
{
	return !(regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY));
}

static inline long regs_return_value(struct pt_regs *regs)
{
	return regs->u_regs[UREG_I0];
}
#ifdef CONFIG_SMP
extern unsigned long profile_pc(struct pt_regs *);
#else
#define profile_pc(regs) instruction_pointer(regs)
#endif
#else /* __ASSEMBLY__ */
#endif /* __ASSEMBLY__ */
#else /* (defined(__sparc__) && defined(__arch64__)) */
#ifndef __ASSEMBLY__
#include <asm/switch_to.h>

static inline bool pt_regs_is_syscall(struct pt_regs *regs)
{
	return (regs->psr & PSR_SYSCALL);
}

static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
{
	return (regs->psr &= ~PSR_SYSCALL);
}

#define arch_ptrace_stop_needed(exit_code, info) \
({	flush_user_windows(); \
	current_thread_info()->w_saved != 0;	\
})

#define arch_ptrace_stop(exit_code, info) \
	synchronize_user_stack()

#define user_mode(regs) (!((regs)->psr & PSR_PS))
#define instruction_pointer(regs) ((regs)->pc)
#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
unsigned long profile_pc(struct pt_regs *);
#else /* (!__ASSEMBLY__) */
#endif /* (!__ASSEMBLY__) */
#endif /* (defined(__sparc__) && defined(__arch64__)) */
#define STACK_BIAS		2047

/* global_reg_snapshot offsets */
#define GR_SNAP_TSTATE	0x00
#define GR_SNAP_TPC	0x08
#define GR_SNAP_TNPC	0x10
#define GR_SNAP_O7	0x18
#define GR_SNAP_I7	0x20
#define GR_SNAP_RPC	0x28
#define GR_SNAP_THREAD	0x30
#define GR_SNAP_PAD1	0x38

#endif /* !(__SPARC_PTRACE_H) */
Commit	Line	Data
f3ec38d5 SR	1	#ifndef __SPARC_PTRACE_H
	2	#define __SPARC_PTRACE_H
	3
54579826	4	#include <uapi/asm/ptrace.h>
f3ec38d5 SR	5
f3ec38d5 SR	6	#if defined(__sparc__) && defined(__arch64__)
f3ec38d5 SR	7	#ifndef __ASSEMBLY__
f3ec38d5 SR	8
f3ec38d5	9	#include <linux/threads.h>
7f55ba9c	10	#include <asm/switch_to.h>
f3ec38d5 SR	11
	12	static inline int pt_regs_trap_type(struct pt_regs *regs)
	13	{
	14	return regs->magic & 0x1ff;
	15	}
	16
	17	static inline bool pt_regs_is_syscall(struct pt_regs *regs)
	18	{
	19	return (regs->tstate & TSTATE_SYSCALL);
	20	}
	21
	22	static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
	23	{
	24	return (regs->tstate &= ~TSTATE_SYSCALL);
	25	}
	26
	27	#define arch_ptrace_stop_needed(exit_code, info) \
	28	({ flush_user_windows(); \
	29	get_thread_wsaved() != 0; \
	30	})
	31
	32	#define arch_ptrace_stop(exit_code, info) \
	33	synchronize_user_stack()
	34
	35	struct global_reg_snapshot {
	36	unsigned long tstate;
	37	unsigned long tpc;
	38	unsigned long tnpc;
	39	unsigned long o7;
	40	unsigned long i7;
	41	unsigned long rpc;
	42	struct thread_info *thread;
	43	unsigned long pad1;
	44	};
	45	extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS];
	46
dff933da	47	#define force_successful_syscall_return() set_thread_noerror(1)
f3ec38d5 SR	48	#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
f3ec38d5 SR	49	#define instruction_pointer(regs) ((regs)->tpc)
33d8881a	50	#define instruction_pointer_set(regs, val) ((regs)->tpc = (val))
f3ec38d5	51	#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
d7e7528b EP	52	static inline int is_syscall_success(struct pt_regs *regs)
	53	{
	54	return !(regs->tstate & (TSTATE_XCARRY \| TSTATE_ICARRY));
	55	}
	56
	57	static inline long regs_return_value(struct pt_regs *regs)
	58	{
	59	return regs->u_regs[UREG_I0];
	60	}
f3ec38d5 SR	61	#ifdef CONFIG_SMP
	62	extern unsigned long profile_pc(struct pt_regs *);
	63	#else
	64	#define profile_pc(regs) instruction_pointer(regs)
1da177e4	65	#endif
f3ec38d5	66	#else /* __ASSEMBLY__ */
f3ec38d5	67	#endif /* __ASSEMBLY__ */
f3ec38d5	68	#else /* (defined(__sparc__) && defined(__arch64__)) */
f3ec38d5	69	#ifndef __ASSEMBLY__
bde4d8b2	70	#include <asm/switch_to.h>
f3ec38d5	71
f3ec38d5 SR	72	static inline bool pt_regs_is_syscall(struct pt_regs *regs)
	73	{
	74	return (regs->psr & PSR_SYSCALL);
	75	}
	76
	77	static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
	78	{
	79	return (regs->psr &= ~PSR_SYSCALL);
	80	}
	81
	82	#define arch_ptrace_stop_needed(exit_code, info) \
	83	({ flush_user_windows(); \
	84	current_thread_info()->w_saved != 0; \
	85	})
	86
	87	#define arch_ptrace_stop(exit_code, info) \
	88	synchronize_user_stack()
	89
	90	#define user_mode(regs) (!((regs)->psr & PSR_PS))
	91	#define instruction_pointer(regs) ((regs)->pc)
	92	#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
	93	unsigned long profile_pc(struct pt_regs *);
f3ec38d5	94	#else /* (!__ASSEMBLY__) */
f3ec38d5	95	#endif /* (!__ASSEMBLY__) */
f3ec38d5	96	#endif /* (defined(__sparc__) && defined(__arch64__)) */
f3ec38d5	97	#define STACK_BIAS 2047
f3ec38d5 SR	98
	99	/* global_reg_snapshot offsets */
	100	#define GR_SNAP_TSTATE 0x00
	101	#define GR_SNAP_TPC 0x08
	102	#define GR_SNAP_TNPC 0x10
	103	#define GR_SNAP_O7 0x18
	104	#define GR_SNAP_I7 0x20
	105	#define GR_SNAP_RPC 0x28
	106	#define GR_SNAP_THREAD 0x30
	107	#define GR_SNAP_PAD1 0x38
	108
f3ec38d5	109	#endif /* !(__SPARC_PTRACE_H) */