[GitHub/mt8127/android_kernel_alcatel_ttab.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;
};

struct global_pmu_snapshot {
	unsigned long		pcr[4];
	unsigned long		pic[4];
};

union global_cpu_snapshot {
	struct global_reg_snapshot	reg;
	struct global_pmu_snapshot	pmu;
};

extern union global_cpu_snapshot global_cpu_snapshot[NR_CPUS];

#define force_successful_syscall_return()	    \
do {	current_thread_info()->syscall_noerror = 1; \
} while (0)
#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	};
916ca14a DM	45
	46	struct global_pmu_snapshot {
	47	unsigned long pcr[4];
	48	unsigned long pic[4];
	49	};
	50
	51	union global_cpu_snapshot {
	52	struct global_reg_snapshot reg;
	53	struct global_pmu_snapshot pmu;
	54	};
	55
	56	extern union global_cpu_snapshot global_cpu_snapshot[NR_CPUS];
f3ec38d5 SR	57
	58	#define force_successful_syscall_return() \
	59	do { current_thread_info()->syscall_noerror = 1; \
	60	} while (0)
	61	#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
	62	#define instruction_pointer(regs) ((regs)->tpc)
33d8881a	63	#define instruction_pointer_set(regs, val) ((regs)->tpc = (val))
f3ec38d5	64	#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
d7e7528b EP	65	static inline int is_syscall_success(struct pt_regs *regs)
	66	{
	67	return !(regs->tstate & (TSTATE_XCARRY \| TSTATE_ICARRY));
	68	}
	69
	70	static inline long regs_return_value(struct pt_regs *regs)
	71	{
	72	return regs->u_regs[UREG_I0];
	73	}
f3ec38d5 SR	74	#ifdef CONFIG_SMP
	75	extern unsigned long profile_pc(struct pt_regs *);
	76	#else
	77	#define profile_pc(regs) instruction_pointer(regs)
1da177e4	78	#endif
f3ec38d5	79	#else /* __ASSEMBLY__ */
f3ec38d5	80	#endif /* __ASSEMBLY__ */
f3ec38d5	81	#else /* (defined(__sparc__) && defined(__arch64__)) */
f3ec38d5	82	#ifndef __ASSEMBLY__
bde4d8b2	83	#include <asm/switch_to.h>
f3ec38d5	84
f3ec38d5 SR	85	static inline bool pt_regs_is_syscall(struct pt_regs *regs)
	86	{
	87	return (regs->psr & PSR_SYSCALL);
	88	}
	89
	90	static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
	91	{
	92	return (regs->psr &= ~PSR_SYSCALL);
	93	}
	94
	95	#define arch_ptrace_stop_needed(exit_code, info) \
	96	({ flush_user_windows(); \
	97	current_thread_info()->w_saved != 0; \
	98	})
	99
	100	#define arch_ptrace_stop(exit_code, info) \
	101	synchronize_user_stack()
	102
	103	#define user_mode(regs) (!((regs)->psr & PSR_PS))
	104	#define instruction_pointer(regs) ((regs)->pc)
	105	#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
	106	unsigned long profile_pc(struct pt_regs *);
f3ec38d5	107	#else /* (!__ASSEMBLY__) */
f3ec38d5	108	#endif /* (!__ASSEMBLY__) */
f3ec38d5	109	#endif /* (defined(__sparc__) && defined(__arch64__)) */
f3ec38d5	110	#define STACK_BIAS 2047
f3ec38d5 SR	111
	112	/* global_reg_snapshot offsets */
	113	#define GR_SNAP_TSTATE 0x00
	114	#define GR_SNAP_TPC 0x08
	115	#define GR_SNAP_TNPC 0x10
	116	#define GR_SNAP_O7 0x18
	117	#define GR_SNAP_I7 0x20
	118	#define GR_SNAP_RPC 0x28
	119	#define GR_SNAP_THREAD 0x30
	120	#define GR_SNAP_PAD1 0x38
	121
f3ec38d5	122	#endif /* !(__SPARC_PTRACE_H) */