[deliverable/linux.git] / arch / um / include / sysdep-x86_64 / ptrace.h

/*
 * Copyright 2003 PathScale, Inc.
 * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 *
 * Licensed under the GPL
 */

#ifndef __SYSDEP_X86_64_PTRACE_H
#define __SYSDEP_X86_64_PTRACE_H

#include "uml-config.h"
#include "user_constants.h"
#include "sysdep/faultinfo.h"

#define MAX_REG_OFFSET (UM_FRAME_SIZE)
#define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long))

#include "skas_ptregs.h"

#define REGS_IP(r) ((r)[HOST_IP])
#define REGS_SP(r) ((r)[HOST_SP])

#define REGS_RBX(r) ((r)[HOST_RBX])
#define REGS_RCX(r) ((r)[HOST_RCX])
#define REGS_RDX(r) ((r)[HOST_RDX])
#define REGS_RSI(r) ((r)[HOST_RSI])
#define REGS_RDI(r) ((r)[HOST_RDI])
#define REGS_RBP(r) ((r)[HOST_RBP])
#define REGS_RAX(r) ((r)[HOST_RAX])
#define REGS_R8(r) ((r)[HOST_R8])
#define REGS_R9(r) ((r)[HOST_R9])
#define REGS_R10(r) ((r)[HOST_R10])
#define REGS_R11(r) ((r)[HOST_R11])
#define REGS_R12(r) ((r)[HOST_R12])
#define REGS_R13(r) ((r)[HOST_R13])
#define REGS_R14(r) ((r)[HOST_R14])
#define REGS_R15(r) ((r)[HOST_R15])
#define REGS_CS(r) ((r)[HOST_CS])
#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
#define REGS_SS(r) ((r)[HOST_SS])

#define HOST_FS_BASE 21
#define HOST_GS_BASE 22
#define HOST_DS 23
#define HOST_ES 24
#define HOST_FS 25
#define HOST_GS 26

/* Also defined in asm/ptrace-x86_64.h, but not in libc headers.  So, these
 * are already defined for kernel code, but not for userspace code.
 */
#ifndef FS_BASE
/* These aren't defined in ptrace.h, but exist in struct user_regs_struct,
 * which is what x86_64 ptrace actually uses.
 */
#define FS_BASE (HOST_FS_BASE * sizeof(long))
#define GS_BASE (HOST_GS_BASE * sizeof(long))
#define DS (HOST_DS * sizeof(long))
#define ES (HOST_ES * sizeof(long))
#define FS (HOST_FS * sizeof(long))
#define GS (HOST_GS * sizeof(long))
#endif

#define REGS_FS_BASE(r) ((r)[HOST_FS_BASE])
#define REGS_GS_BASE(r) ((r)[HOST_GS_BASE])
#define REGS_DS(r) ((r)[HOST_DS])
#define REGS_ES(r) ((r)[HOST_ES])
#define REGS_FS(r) ((r)[HOST_FS])
#define REGS_GS(r) ((r)[HOST_GS])

#define REGS_ORIG_RAX(r) ((r)[HOST_ORIG_RAX])

#define REGS_SET_SYSCALL_RETURN(r, res) REGS_RAX(r) = (res)

#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))

#define REGS_SEGV_IS_FIXABLE(r) SEGV_IS_FIXABLE((r)->trap_type)

#define REGS_FAULT_ADDR(r) ((r)->fault_addr)

#define REGS_FAULT_WRITE(r) FAULT_WRITE((r)->fault_type)

#define REGS_TRAP(r) ((r)->trap_type)

#define REGS_ERR(r) ((r)->fault_type)

struct uml_pt_regs {
	unsigned long gp[MAX_REG_NR];
	unsigned long fp[HOST_FP_SIZE];
	struct faultinfo faultinfo;
	long syscall;
	int is_user;
};

#define EMPTY_UML_PT_REGS { }

#define UPT_RBX(r) REGS_RBX((r)->gp)
#define UPT_RCX(r) REGS_RCX((r)->gp)
#define UPT_RDX(r) REGS_RDX((r)->gp)
#define UPT_RSI(r) REGS_RSI((r)->gp)
#define UPT_RDI(r) REGS_RDI((r)->gp)
#define UPT_RBP(r) REGS_RBP((r)->gp)
#define UPT_RAX(r) REGS_RAX((r)->gp)
#define UPT_R8(r) REGS_R8((r)->gp)
#define UPT_R9(r) REGS_R9((r)->gp)
#define UPT_R10(r) REGS_R10((r)->gp)
#define UPT_R11(r) REGS_R11((r)->gp)
#define UPT_R12(r) REGS_R12((r)->gp)
#define UPT_R13(r) REGS_R13((r)->gp)
#define UPT_R14(r) REGS_R14((r)->gp)
#define UPT_R15(r) REGS_R15((r)->gp)
#define UPT_CS(r) REGS_CS((r)->gp)
#define UPT_FS_BASE(r) REGS_FS_BASE((r)->gp)
#define UPT_FS(r) REGS_FS((r)->gp)
#define UPT_GS_BASE(r) REGS_GS_BASE((r)->gp)
#define UPT_GS(r) REGS_GS((r)->gp)
#define UPT_DS(r) REGS_DS((r)->gp)
#define UPT_ES(r) REGS_ES((r)->gp)
#define UPT_CS(r) REGS_CS((r)->gp)
#define UPT_SS(r) REGS_SS((r)->gp)
#define UPT_ORIG_RAX(r) REGS_ORIG_RAX((r)->gp)

#define UPT_IP(r) REGS_IP((r)->gp)
#define UPT_SP(r) REGS_SP((r)->gp)

#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp)
#define UPT_SYSCALL_NR(r) ((r)->syscall)
#define UPT_SYSCALL_RET(r) UPT_RAX(r)

extern int user_context(unsigned long sp);

#define UPT_IS_USER(r) ((r)->is_user)

#define UPT_SYSCALL_ARG1(r) UPT_RDI(r)
#define UPT_SYSCALL_ARG2(r) UPT_RSI(r)
#define UPT_SYSCALL_ARG3(r) UPT_RDX(r)
#define UPT_SYSCALL_ARG4(r) UPT_R10(r)
#define UPT_SYSCALL_ARG5(r) UPT_R8(r)
#define UPT_SYSCALL_ARG6(r) UPT_R9(r)

struct syscall_args {
	unsigned long args[6];
};

#define SYSCALL_ARGS(r) ((struct syscall_args) \
			 { .args = { UPT_SYSCALL_ARG1(r),	 \
				     UPT_SYSCALL_ARG2(r),	 \
				     UPT_SYSCALL_ARG3(r),	 \
				     UPT_SYSCALL_ARG4(r),	 \
				     UPT_SYSCALL_ARG5(r),	 \
				     UPT_SYSCALL_ARG6(r) } } )

#define UPT_REG(regs, reg) \
	({      unsigned long val;		\
		switch(reg){						\
		case R8: val = UPT_R8(regs); break;			\
		case R9: val = UPT_R9(regs); break;			\
		case R10: val = UPT_R10(regs); break;			\
		case R11: val = UPT_R11(regs); break;			\
		case R12: val = UPT_R12(regs); break;			\
		case R13: val = UPT_R13(regs); break;			\
		case R14: val = UPT_R14(regs); break;			\
		case R15: val = UPT_R15(regs); break;			\
		case RIP: val = UPT_IP(regs); break;			\
		case RSP: val = UPT_SP(regs); break;			\
		case RAX: val = UPT_RAX(regs); break;			\
		case RBX: val = UPT_RBX(regs); break;			\
		case RCX: val = UPT_RCX(regs); break;			\
		case RDX: val = UPT_RDX(regs); break;			\
		case RSI: val = UPT_RSI(regs); break;			\
		case RDI: val = UPT_RDI(regs); break;			\
		case RBP: val = UPT_RBP(regs); break;			\
		case ORIG_RAX: val = UPT_ORIG_RAX(regs); break;		\
		case CS: val = UPT_CS(regs); break;			\
		case SS: val = UPT_SS(regs); break;			\
		case FS_BASE: val = UPT_FS_BASE(regs); break;		\
		case GS_BASE: val = UPT_GS_BASE(regs); break;		\
		case DS: val = UPT_DS(regs); break;			\
		case ES: val = UPT_ES(regs); break;			\
		case FS : val = UPT_FS (regs); break;			\
		case GS: val = UPT_GS(regs); break;			\
		case EFLAGS: val = UPT_EFLAGS(regs); break;		\
		default :						\
			panic("Bad register in UPT_REG : %d\n", reg);	\
			val = -1;					\
		}							\
		val;							\
	})


#define UPT_SET(regs, reg, val) \
	({      unsigned long __upt_val = val;	\
		switch(reg){						\
		case R8: UPT_R8(regs) = __upt_val; break;		\
		case R9: UPT_R9(regs) = __upt_val; break;		\
		case R10: UPT_R10(regs) = __upt_val; break;		\
		case R11: UPT_R11(regs) = __upt_val; break;		\
		case R12: UPT_R12(regs) = __upt_val; break;		\
		case R13: UPT_R13(regs) = __upt_val; break;		\
		case R14: UPT_R14(regs) = __upt_val; break;		\
		case R15: UPT_R15(regs) = __upt_val; break;		\
		case RIP: UPT_IP(regs) = __upt_val; break;		\
		case RSP: UPT_SP(regs) = __upt_val; break;		\
		case RAX: UPT_RAX(regs) = __upt_val; break;		\
		case RBX: UPT_RBX(regs) = __upt_val; break;		\
		case RCX: UPT_RCX(regs) = __upt_val; break;		\
		case RDX: UPT_RDX(regs) = __upt_val; break;		\
		case RSI: UPT_RSI(regs) = __upt_val; break;		\
		case RDI: UPT_RDI(regs) = __upt_val; break;		\
		case RBP: UPT_RBP(regs) = __upt_val; break;		\
		case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break;	\
		case CS: UPT_CS(regs) = __upt_val; break;		\
		case SS: UPT_SS(regs) = __upt_val; break;		\
		case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break;	\
		case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break;	\
		case DS: UPT_DS(regs) = __upt_val; break;		\
		case ES: UPT_ES(regs) = __upt_val; break;		\
		case FS: UPT_FS(regs) = __upt_val; break;		\
		case GS: UPT_GS(regs) = __upt_val; break;		\
		case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break;	\
		default :						\
			panic("Bad register in UPT_SET : %d\n", reg);	\
			break;						\
		}							\
		__upt_val;						\
	})

#define UPT_SET_SYSCALL_RETURN(r, res) \
	REGS_SET_SYSCALL_RETURN((r)->regs, (res))

#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp)

#define UPT_SEGV_IS_FIXABLE(r) REGS_SEGV_IS_FIXABLE(&r->skas)

#define UPT_FAULTINFO(r) (&(r)->faultinfo)

#endif
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Copyright 2003 PathScale, Inc.
42fda663	3	* Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
1da177e4 LT	4	*
	5	* Licensed under the GPL
	6	*/
	7
	8	#ifndef __SYSDEP_X86_64_PTRACE_H
	9	#define __SYSDEP_X86_64_PTRACE_H
	10
	11	#include "uml-config.h"
	12	#include "user_constants.h"
c578455a	13	#include "sysdep/faultinfo.h"
1da177e4 LT	14
	15	#define MAX_REG_OFFSET (UM_FRAME_SIZE)
	16	#define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long))
	17
1da177e4 LT	18	#include "skas_ptregs.h"
	19
	20	#define REGS_IP(r) ((r)[HOST_IP])
	21	#define REGS_SP(r) ((r)[HOST_SP])
	22
	23	#define REGS_RBX(r) ((r)[HOST_RBX])
	24	#define REGS_RCX(r) ((r)[HOST_RCX])
	25	#define REGS_RDX(r) ((r)[HOST_RDX])
	26	#define REGS_RSI(r) ((r)[HOST_RSI])
	27	#define REGS_RDI(r) ((r)[HOST_RDI])
	28	#define REGS_RBP(r) ((r)[HOST_RBP])
	29	#define REGS_RAX(r) ((r)[HOST_RAX])
	30	#define REGS_R8(r) ((r)[HOST_R8])
	31	#define REGS_R9(r) ((r)[HOST_R9])
	32	#define REGS_R10(r) ((r)[HOST_R10])
	33	#define REGS_R11(r) ((r)[HOST_R11])
	34	#define REGS_R12(r) ((r)[HOST_R12])
	35	#define REGS_R13(r) ((r)[HOST_R13])
	36	#define REGS_R14(r) ((r)[HOST_R14])
	37	#define REGS_R15(r) ((r)[HOST_R15])
	38	#define REGS_CS(r) ((r)[HOST_CS])
	39	#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
	40	#define REGS_SS(r) ((r)[HOST_SS])
	41
	42	#define HOST_FS_BASE 21
	43	#define HOST_GS_BASE 22
	44	#define HOST_DS 23
	45	#define HOST_ES 24
	46	#define HOST_FS 25
	47	#define HOST_GS 26
	48
a8b4fc4d JD	49	/* Also defined in asm/ptrace-x86_64.h, but not in libc headers. So, these
	50	* are already defined for kernel code, but not for userspace code.
	51	*/
	52	#ifndef FS_BASE
	53	/* These aren't defined in ptrace.h, but exist in struct user_regs_struct,
	54	* which is what x86_64 ptrace actually uses.
	55	*/
	56	#define FS_BASE (HOST_FS_BASE * sizeof(long))
	57	#define GS_BASE (HOST_GS_BASE * sizeof(long))
	58	#define DS (HOST_DS * sizeof(long))
	59	#define ES (HOST_ES * sizeof(long))
	60	#define FS (HOST_FS * sizeof(long))
	61	#define GS (HOST_GS * sizeof(long))
	62	#endif
	63
1da177e4 LT	64	#define REGS_FS_BASE(r) ((r)[HOST_FS_BASE])
	65	#define REGS_GS_BASE(r) ((r)[HOST_GS_BASE])
	66	#define REGS_DS(r) ((r)[HOST_DS])
	67	#define REGS_ES(r) ((r)[HOST_ES])
	68	#define REGS_FS(r) ((r)[HOST_FS])
	69	#define REGS_GS(r) ((r)[HOST_GS])
	70
	71	#define REGS_ORIG_RAX(r) ((r)[HOST_ORIG_RAX])
	72
	73	#define REGS_SET_SYSCALL_RETURN(r, res) REGS_RAX(r) = (res)
	74
	75	#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))
	76
	77	#define REGS_SEGV_IS_FIXABLE(r) SEGV_IS_FIXABLE((r)->trap_type)
	78
	79	#define REGS_FAULT_ADDR(r) ((r)->fault_addr)
	80
	81	#define REGS_FAULT_WRITE(r) FAULT_WRITE((r)->fault_type)
	82
	83	#define REGS_TRAP(r) ((r)->trap_type)
	84
	85	#define REGS_ERR(r) ((r)->fault_type)
	86
77bf4400	87	struct uml_pt_regs {
18baddda	88	unsigned long gp[MAX_REG_NR];
77bf4400 JD	89	unsigned long fp[HOST_FP_SIZE];
	90	struct faultinfo faultinfo;
	91	long syscall;
	92	int is_user;
1da177e4 LT	93	};
	94
	95	#define EMPTY_UML_PT_REGS { }
	96
18baddda JD	97	#define UPT_RBX(r) REGS_RBX((r)->gp)
	98	#define UPT_RCX(r) REGS_RCX((r)->gp)
	99	#define UPT_RDX(r) REGS_RDX((r)->gp)
	100	#define UPT_RSI(r) REGS_RSI((r)->gp)
	101	#define UPT_RDI(r) REGS_RDI((r)->gp)
	102	#define UPT_RBP(r) REGS_RBP((r)->gp)
	103	#define UPT_RAX(r) REGS_RAX((r)->gp)
	104	#define UPT_R8(r) REGS_R8((r)->gp)
	105	#define UPT_R9(r) REGS_R9((r)->gp)
	106	#define UPT_R10(r) REGS_R10((r)->gp)
	107	#define UPT_R11(r) REGS_R11((r)->gp)
	108	#define UPT_R12(r) REGS_R12((r)->gp)
	109	#define UPT_R13(r) REGS_R13((r)->gp)
	110	#define UPT_R14(r) REGS_R14((r)->gp)
	111	#define UPT_R15(r) REGS_R15((r)->gp)
	112	#define UPT_CS(r) REGS_CS((r)->gp)
	113	#define UPT_FS_BASE(r) REGS_FS_BASE((r)->gp)
	114	#define UPT_FS(r) REGS_FS((r)->gp)
	115	#define UPT_GS_BASE(r) REGS_GS_BASE((r)->gp)
	116	#define UPT_GS(r) REGS_GS((r)->gp)
	117	#define UPT_DS(r) REGS_DS((r)->gp)
	118	#define UPT_ES(r) REGS_ES((r)->gp)
	119	#define UPT_CS(r) REGS_CS((r)->gp)
	120	#define UPT_SS(r) REGS_SS((r)->gp)
	121	#define UPT_ORIG_RAX(r) REGS_ORIG_RAX((r)->gp)
	122
	123	#define UPT_IP(r) REGS_IP((r)->gp)
	124	#define UPT_SP(r) REGS_SP((r)->gp)
	125
	126	#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp)
77bf4400	127	#define UPT_SYSCALL_NR(r) ((r)->syscall)
ba9950c8	128	#define UPT_SYSCALL_RET(r) UPT_RAX(r)
1da177e4 LT	129
	130	extern int user_context(unsigned long sp);
	131
77bf4400	132	#define UPT_IS_USER(r) ((r)->is_user)
1da177e4 LT	133
	134	#define UPT_SYSCALL_ARG1(r) UPT_RDI(r)
	135	#define UPT_SYSCALL_ARG2(r) UPT_RSI(r)
	136	#define UPT_SYSCALL_ARG3(r) UPT_RDX(r)
	137	#define UPT_SYSCALL_ARG4(r) UPT_R10(r)
	138	#define UPT_SYSCALL_ARG5(r) UPT_R8(r)
	139	#define UPT_SYSCALL_ARG6(r) UPT_R9(r)
	140
	141	struct syscall_args {
	142	unsigned long args[6];
	143	};
	144
	145	#define SYSCALL_ARGS(r) ((struct syscall_args) \
8ca842c4 JD	146	{ .args = { UPT_SYSCALL_ARG1(r), \
	147	UPT_SYSCALL_ARG2(r), \
	148	UPT_SYSCALL_ARG3(r), \
	149	UPT_SYSCALL_ARG4(r), \
	150	UPT_SYSCALL_ARG5(r), \
	151	UPT_SYSCALL_ARG6(r) } } )
1da177e4 LT	152
1da177e4 LT	153	#define UPT_REG(regs, reg) \
8ca842c4 JD	154	({ unsigned long val; \
	155	switch(reg){ \
	156	case R8: val = UPT_R8(regs); break; \
	157	case R9: val = UPT_R9(regs); break; \
	158	case R10: val = UPT_R10(regs); break; \
	159	case R11: val = UPT_R11(regs); break; \
	160	case R12: val = UPT_R12(regs); break; \
	161	case R13: val = UPT_R13(regs); break; \
	162	case R14: val = UPT_R14(regs); break; \
	163	case R15: val = UPT_R15(regs); break; \
	164	case RIP: val = UPT_IP(regs); break; \
	165	case RSP: val = UPT_SP(regs); break; \
	166	case RAX: val = UPT_RAX(regs); break; \
	167	case RBX: val = UPT_RBX(regs); break; \
	168	case RCX: val = UPT_RCX(regs); break; \
	169	case RDX: val = UPT_RDX(regs); break; \
	170	case RSI: val = UPT_RSI(regs); break; \
	171	case RDI: val = UPT_RDI(regs); break; \
	172	case RBP: val = UPT_RBP(regs); break; \
	173	case ORIG_RAX: val = UPT_ORIG_RAX(regs); break; \
	174	case CS: val = UPT_CS(regs); break; \
	175	case SS: val = UPT_SS(regs); break; \
	176	case FS_BASE: val = UPT_FS_BASE(regs); break; \
	177	case GS_BASE: val = UPT_GS_BASE(regs); break; \
	178	case DS: val = UPT_DS(regs); break; \
	179	case ES: val = UPT_ES(regs); break; \
	180	case FS : val = UPT_FS (regs); break; \
	181	case GS: val = UPT_GS(regs); break; \
	182	case EFLAGS: val = UPT_EFLAGS(regs); break; \
	183	default : \
	184	panic("Bad register in UPT_REG : %d\n", reg); \
	185	val = -1; \
	186	} \
	187	val; \
	188	})
1da177e4 LT	189
	190
	191	#define UPT_SET(regs, reg, val) \
8ca842c4 JD	192	({ unsigned long __upt_val = val; \
	193	switch(reg){ \
	194	case R8: UPT_R8(regs) = __upt_val; break; \
	195	case R9: UPT_R9(regs) = __upt_val; break; \
	196	case R10: UPT_R10(regs) = __upt_val; break; \
	197	case R11: UPT_R11(regs) = __upt_val; break; \
	198	case R12: UPT_R12(regs) = __upt_val; break; \
	199	case R13: UPT_R13(regs) = __upt_val; break; \
	200	case R14: UPT_R14(regs) = __upt_val; break; \
	201	case R15: UPT_R15(regs) = __upt_val; break; \
	202	case RIP: UPT_IP(regs) = __upt_val; break; \
	203	case RSP: UPT_SP(regs) = __upt_val; break; \
	204	case RAX: UPT_RAX(regs) = __upt_val; break; \
	205	case RBX: UPT_RBX(regs) = __upt_val; break; \
	206	case RCX: UPT_RCX(regs) = __upt_val; break; \
	207	case RDX: UPT_RDX(regs) = __upt_val; break; \
	208	case RSI: UPT_RSI(regs) = __upt_val; break; \
	209	case RDI: UPT_RDI(regs) = __upt_val; break; \
	210	case RBP: UPT_RBP(regs) = __upt_val; break; \
	211	case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \
	212	case CS: UPT_CS(regs) = __upt_val; break; \
	213	case SS: UPT_SS(regs) = __upt_val; break; \
	214	case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break; \
	215	case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break; \
	216	case DS: UPT_DS(regs) = __upt_val; break; \
	217	case ES: UPT_ES(regs) = __upt_val; break; \
	218	case FS: UPT_FS(regs) = __upt_val; break; \
	219	case GS: UPT_GS(regs) = __upt_val; break; \
	220	case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \
	221	default : \
	222	panic("Bad register in UPT_SET : %d\n", reg); \
	223	break; \
	224	} \
	225	__upt_val; \
	226	})
1da177e4 LT	227
1da177e4 LT	228	#define UPT_SET_SYSCALL_RETURN(r, res) \
77bf4400	229	REGS_SET_SYSCALL_RETURN((r)->regs, (res))
1da177e4	230
18baddda	231	#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp)
1da177e4	232
6aa802ce	233	#define UPT_SEGV_IS_FIXABLE(r) REGS_SEGV_IS_FIXABLE(&r->skas)
1da177e4	234
77bf4400	235	#define UPT_FAULTINFO(r) (&(r)->faultinfo)
1da177e4 LT	236
1da177e4 LT	237	#endif