#ifndef _ASM_KDBPRIVATE_H
#define _ASM_KDBPRIVATE_H
/*
* Kernel Debugger Architecture Dependent Private Headers
*
* Copyright (C) 1999-2003 Silicon Graphics, Inc. All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan
*/
typedef unsigned char kdb_machinst_t;
/*
* KDB_MAXBPT describes the total number of breakpoints
* supported by this architecure.
*/
#define KDB_MAXBPT 16
/*
* KDB_MAXHARDBPT describes the total number of hardware
* breakpoint registers that exist.
*/
#define KDB_MAXHARDBPT 4
/*
* Platform specific environment entries
*/
#define KDB_PLATFORM_ENV "IDMODE=x86", "BYTESPERWORD=4", "IDCOUNT=16"
/*
* Define the direction that the stack grows
*/
#define KDB_STACK_DIRECTION (-1) /* Stack grows down */
/*
* Support for ia32 debug registers
*/
typedef struct _kdbhard_bp {
kdb_machreg_t bph_reg; /* Register this breakpoint uses */
unsigned int bph_free:1; /* Register available for use */
unsigned int bph_data:1; /* Data Access breakpoint */
unsigned int bph_write:1; /* Write Data breakpoint */
unsigned int bph_mode:2; /* 0=inst, 1=write, 2=io, 3=read */
unsigned int bph_length:2; /* 0=1, 1=2, 2=BAD, 3=4 (bytes) */
} kdbhard_bp_t;
extern kdbhard_bp_t kdb_hardbreaks[/* KDB_MAXHARDBPT */];
#define IA32_BREAKPOINT_INSTRUCTION 0xcc
#define DR6_BT 0x00008000
#define DR6_BS 0x00004000
#define DR6_BD 0x00002000
#define DR6_B3 0x00000008
#define DR6_B2 0x00000004
#define DR6_B1 0x00000002
#define DR6_B0 0x00000001
#define DR6_DR_MASK 0x0000000F
#define DR7_RW_VAL(dr, drnum) \
(((dr) >> (16 + (4 * (drnum)))) & 0x3)
#define DR7_RW_SET(dr, drnum, rw) \
do { \
(dr) &= ~(0x3 << (16 + (4 * (drnum)))); \
(dr) |= (((rw) & 0x3) << (16 + (4 * (drnum)))); \
} while (0)
#define DR7_RW0(dr) DR7_RW_VAL(dr, 0)
#define DR7_RW0SET(dr,rw) DR7_RW_SET(dr, 0, rw)
#define DR7_RW1(dr) DR7_RW_VAL(dr, 1)
#define DR7_RW1SET(dr,rw) DR7_RW_SET(dr, 1, rw)
#define DR7_RW2(dr) DR7_RW_VAL(dr, 2)
#define DR7_RW2SET(dr,rw) DR7_RW_SET(dr, 2, rw)
#define DR7_RW3(dr) DR7_RW_VAL(dr, 3)
#define DR7_RW3SET(dr,rw) DR7_RW_SET(dr, 3, rw)
#define DR7_LEN_VAL(dr, drnum) \
(((dr) >> (18 + (4 * (drnum)))) & 0x3)
#define DR7_LEN_SET(dr, drnum, rw) \
do { \
(dr) &= ~(0x3 << (18 + (4 * (drnum)))); \
(dr) |= (((rw) & 0x3) << (18 + (4 * (drnum)))); \
} while (0)
#define DR7_LEN0(dr) DR7_LEN_VAL(dr, 0)
#define DR7_LEN0SET(dr,len) DR7_LEN_SET(dr, 0, len)
#define DR7_LEN1(dr) DR7_LEN_VAL(dr, 1)
#define DR7_LEN1SET(dr,len) DR7_LEN_SET(dr, 1, len)
#define DR7_LEN2(dr) DR7_LEN_VAL(dr, 2)
#define DR7_LEN2SET(dr,len) DR7_LEN_SET(dr, 2, len)
#define DR7_LEN3(dr) DR7_LEN_VAL(dr, 3)
#define DR7_LEN3SET(dr,len) DR7_LEN_SET(dr, 3, len)
#define DR7_G0(dr) (((dr)>>1)&0x1)
#define DR7_G0SET(dr) ((dr) |= 0x2)
#define DR7_G0CLR(dr) ((dr) &= ~0x2)
#define DR7_G1(dr) (((dr)>>3)&0x1)
#define DR7_G1SET(dr) ((dr) |= 0x8)
#define DR7_G1CLR(dr) ((dr) &= ~0x8)
#define DR7_G2(dr) (((dr)>>5)&0x1)
#define DR7_G2SET(dr) ((dr) |= 0x20)
#define DR7_G2CLR(dr) ((dr) &= ~0x20)
#define DR7_G3(dr) (((dr)>>7)&0x1)
#define DR7_G3SET(dr) ((dr) |= 0x80)
#define DR7_G3CLR(dr) ((dr) &= ~0x80)
#define DR7_L0(dr) (((dr))&0x1)
#define DR7_L0SET(dr) ((dr) |= 0x1)
#define DR7_L0CLR(dr) ((dr) &= ~0x1)
#define DR7_L1(dr) (((dr)>>2)&0x1)
#define DR7_L1SET(dr) ((dr) |= 0x4)
#define DR7_L1CLR(dr) ((dr) &= ~0x4)
#define DR7_L2(dr) (((dr)>>4)&0x1)
#define DR7_L2SET(dr) ((dr) |= 0x10)
#define DR7_L2CLR(dr) ((dr) &= ~0x10)
#define DR7_L3(dr) (((dr)>>6)&0x1)
#define DR7_L3SET(dr) ((dr) |= 0x40)
#define DR7_L3CLR(dr) ((dr) &= ~0x40)
#define DR7_GD 0x00002000 /* General Detect Enable */
#define DR7_GE 0x00000200 /* Global exact */
#define DR7_LE 0x00000100 /* Local exact */
#define DR_TYPE_EXECUTE 0x0
#define DR_TYPE_WRITE 0x1
#define DR_TYPE_IO 0x2
#define DR_TYPE_RW 0x3
extern kdb_machreg_t kdba_getdr6(void);
extern void kdba_putdr6(kdb_machreg_t);
extern kdb_machreg_t kdba_getdr7(void);
extern kdb_machreg_t kdba_getdr(int);
extern void kdba_putdr(int, kdb_machreg_t);
extern kdb_machreg_t kdb_getcr(int);
#define KDB_HAVE_LONGJMP
#ifdef KDB_HAVE_LONGJMP
/*
* Support for setjmp/longjmp
*/
#define JB_BX 0
#define JB_SI 1
#define JB_DI 2
#define JB_BP 3
#define JB_SP 4
#define JB_PC 5
typedef struct __kdb_jmp_buf {
unsigned long regs[6]; /* kdba_setjmp assumes fixed offsets here */
} kdb_jmp_buf;
extern int kdba_setjmp(kdb_jmp_buf *);
extern void kdba_longjmp(kdb_jmp_buf *, int);
extern kdb_jmp_buf *kdbjmpbuf;
#endif /* KDB_HAVE_LONGJMP */
/* Arch specific data saved for running processes */
struct kdba_running_process {
int dummy[0]; /* Everything is in pt_regs for i386 */
};
static inline
void kdba_save_running(struct kdba_running_process *k, struct pt_regs *regs)
{
}
static inline
void kdba_unsave_running(struct kdba_running_process *k, struct pt_regs *regs)
{
}
#endif /* !_ASM_KDBPRIVATE_H */
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