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/* $Id: kgdb.h,v 1.7 1995/11/27 02:43:18 davem Exp $
* kgdb.h: Defines and declarations for serial line source level
* remote debugging of the Linux kernel using gdb.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef _SPARC_KGDB_H
#define _SPARC_KGDB_H
#ifndef __ASSEMBLY__
/* To init the kgdb engine. */
extern void set_debug_traps(void);
/* To enter the debugger explicitly. */
extern void breakpoint(void);
/* For convenience we define the format of a kgdb trap breakpoint
* frame here also.
*/
struct kgdb_frame {
unsigned long globals[8];
unsigned long outs[8];
unsigned long locals[8];
unsigned long ins[8];
unsigned long fpregs[32];
unsigned long y;
unsigned long psr;
unsigned long wim;
unsigned long tbr;
unsigned long pc;
unsigned long npc;
unsigned long fpsr;
unsigned long cpsr;
};
#endif /* !(__ASSEMBLY__) */
/* Macros for assembly usage of the kgdb breakpoint frame. */
#define KGDB_G0 0x000
#define KGDB_G1 0x004
#define KGDB_G2 0x008
#define KGDB_G4 0x010
#define KGDB_G6 0x018
#define KGDB_I0 0x020
#define KGDB_I2 0x028
#define KGDB_I4 0x030
#define KGDB_I6 0x038
#define KGDB_Y 0x100
#define KGDB_PSR 0x104
#define KGDB_WIM 0x108
#define KGDB_TBR 0x10c
#define KGDB_PC 0x110
#define KGDB_NPC 0x114
#define SAVE_KGDB_GLOBALS(reg) \
std %g0, [%reg + REGWIN_SZ + KGDB_G0]; \
std %g2, [%reg + REGWIN_SZ + KGDB_G2]; \
std %g4, [%reg + REGWIN_SZ + KGDB_G4]; \
std %g6, [%reg + REGWIN_SZ + KGDB_G6];
#define SAVE_KGDB_INS(reg) \
std %i0, [%reg + REGWIN_SZ + KGDB_I0]; \
std %i2, [%reg + REGWIN_SZ + KGDB_I2]; \
std %i4, [%reg + REGWIN_SZ + KGDB_I4]; \
std %i6, [%reg + REGWIN_SZ + KGDB_I6];
#define SAVE_KGDB_SREGS(reg, reg_y, reg_psr, reg_wim, reg_tbr, reg_pc, reg_npc) \
st %reg_y, [%reg + REGWIN_SZ + KGDB_Y]; \
st %reg_psr, [%reg + REGWIN_SZ + KGDB_PSR]; \
st %reg_wim, [%reg + REGWIN_SZ + KGDB_WIM]; \
st %reg_tbr, [%reg + REGWIN_SZ + KGDB_TBR]; \
st %reg_pc, [%reg + REGWIN_SZ + KGDB_PC]; \
st %reg_npc, [%reg + REGWIN_SZ + KGDB_NPC];
#define LOAD_KGDB_GLOBALS(reg) \
ld [%reg + REGWIN_SZ + KGDB_G1], %g1; \
ldd [%reg + REGWIN_SZ + KGDB_G2], %g2; \
ldd [%reg + REGWIN_SZ + KGDB_G4], %g4; \
ldd [%reg + REGWIN_SZ + KGDB_G6], %g6;
#define LOAD_KGDB_INS(reg) \
ldd [%reg + REGWIN_SZ + KGDB_I0], %i0; \
ldd [%reg + REGWIN_SZ + KGDB_I2], %i2; \
ldd [%reg + REGWIN_SZ + KGDB_I4], %i4; \
ldd [%reg + REGWIN_SZ + KGDB_I6], %i6;
#define LOAD_KGDB_SREGS(reg, reg_y_and_psr, reg_pc_and_npc) \
ldd [%reg + REGWIN_SZ + KGDB_Y], %reg_y_and_psr; \
ldd [%reg + REGWIN_SZ + KGDB_PC], %reg_pc_and_npc;
#endif /* !(_SPARC_KGDB_H) */
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