| /* $Id: kgdb.h,v 1.8 1998/01/07 06:33:44 baccala 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 + STACKFRAME_SZ + KGDB_G0]; \ |
| std %g2, [%reg + STACKFRAME_SZ + KGDB_G2]; \ |
| std %g4, [%reg + STACKFRAME_SZ + KGDB_G4]; \ |
| std %g6, [%reg + STACKFRAME_SZ + KGDB_G6]; |
| |
| #define SAVE_KGDB_INS(reg) \ |
| std %i0, [%reg + STACKFRAME_SZ + KGDB_I0]; \ |
| std %i2, [%reg + STACKFRAME_SZ + KGDB_I2]; \ |
| std %i4, [%reg + STACKFRAME_SZ + KGDB_I4]; \ |
| std %i6, [%reg + STACKFRAME_SZ + KGDB_I6]; |
| |
| #define SAVE_KGDB_SREGS(reg, reg_y, reg_psr, reg_wim, reg_tbr, reg_pc, reg_npc) \ |
| st %reg_y, [%reg + STACKFRAME_SZ + KGDB_Y]; \ |
| st %reg_psr, [%reg + STACKFRAME_SZ + KGDB_PSR]; \ |
| st %reg_wim, [%reg + STACKFRAME_SZ + KGDB_WIM]; \ |
| st %reg_tbr, [%reg + STACKFRAME_SZ + KGDB_TBR]; \ |
| st %reg_pc, [%reg + STACKFRAME_SZ + KGDB_PC]; \ |
| st %reg_npc, [%reg + STACKFRAME_SZ + KGDB_NPC]; |
| |
| #define LOAD_KGDB_GLOBALS(reg) \ |
| ld [%reg + STACKFRAME_SZ + KGDB_G1], %g1; \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_G2], %g2; \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_G4], %g4; \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_G6], %g6; |
| |
| #define LOAD_KGDB_INS(reg) \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_I0], %i0; \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_I2], %i2; \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_I4], %i4; \ |
| ldd [%reg + STACKFRAME_SZ + KGDB_I6], %i6; |
| |
| #define LOAD_KGDB_SREGS(reg, reg_y, reg_psr, reg_wim, reg_tbr, reg_pc, reg_npc) \ |
| ld [%reg + STACKFRAME_SZ + KGDB_Y], %reg_y; \ |
| ld [%reg + STACKFRAME_SZ + KGDB_PSR], %reg_psr; \ |
| ld [%reg + STACKFRAME_SZ + KGDB_WIM], %reg_wim; \ |
| ld [%reg + STACKFRAME_SZ + KGDB_TBR], %reg_tbr; \ |
| ld [%reg + STACKFRAME_SZ + KGDB_PC], %reg_pc; \ |
| ld [%reg + STACKFRAME_SZ + KGDB_NPC], %reg_npc; |
| |
| #endif /* !(_SPARC_KGDB_H) */ |