| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: kgdb.h,v 1.8 1998/01/07 06:33:44 baccala Exp $ |
| 2 | * kgdb.h: Defines and declarations for serial line source level |
| 3 | * remote debugging of the Linux kernel using gdb. |
| 4 | * |
| 5 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| 6 | */ |
| 7 | #ifndef _SPARC_KGDB_H |
| 8 | #define _SPARC_KGDB_H |
| 9 | |
| 10 | #ifndef __ASSEMBLY__ |
| 11 | /* To init the kgdb engine. */ |
| 12 | extern void set_debug_traps(void); |
| 13 | |
| 14 | /* To enter the debugger explicitly. */ |
| 15 | extern void breakpoint(void); |
| 16 | |
| 17 | /* For convenience we define the format of a kgdb trap breakpoint |
| 18 | * frame here also. |
| 19 | */ |
| 20 | struct kgdb_frame { |
| 21 | unsigned long globals[8]; |
| 22 | unsigned long outs[8]; |
| 23 | unsigned long locals[8]; |
| 24 | unsigned long ins[8]; |
| 25 | unsigned long fpregs[32]; |
| 26 | unsigned long y; |
| 27 | unsigned long psr; |
| 28 | unsigned long wim; |
| 29 | unsigned long tbr; |
| 30 | unsigned long pc; |
| 31 | unsigned long npc; |
| 32 | unsigned long fpsr; |
| 33 | unsigned long cpsr; |
| 34 | }; |
| 35 | #endif /* !(__ASSEMBLY__) */ |
| 36 | |
| 37 | /* Macros for assembly usage of the kgdb breakpoint frame. */ |
| 38 | #define KGDB_G0 0x000 |
| 39 | #define KGDB_G1 0x004 |
| 40 | #define KGDB_G2 0x008 |
| 41 | #define KGDB_G4 0x010 |
| 42 | #define KGDB_G6 0x018 |
| 43 | #define KGDB_I0 0x020 |
| 44 | #define KGDB_I2 0x028 |
| 45 | #define KGDB_I4 0x030 |
| 46 | #define KGDB_I6 0x038 |
| 47 | #define KGDB_Y 0x100 |
| 48 | #define KGDB_PSR 0x104 |
| 49 | #define KGDB_WIM 0x108 |
| 50 | #define KGDB_TBR 0x10c |
| 51 | #define KGDB_PC 0x110 |
| 52 | #define KGDB_NPC 0x114 |
| 53 | |
| 54 | #define SAVE_KGDB_GLOBALS(reg) \ |
| 55 | std %g0, [%reg + STACKFRAME_SZ + KGDB_G0]; \ |
| 56 | std %g2, [%reg + STACKFRAME_SZ + KGDB_G2]; \ |
| 57 | std %g4, [%reg + STACKFRAME_SZ + KGDB_G4]; \ |
| 58 | std %g6, [%reg + STACKFRAME_SZ + KGDB_G6]; |
| 59 | |
| 60 | #define SAVE_KGDB_INS(reg) \ |
| 61 | std %i0, [%reg + STACKFRAME_SZ + KGDB_I0]; \ |
| 62 | std %i2, [%reg + STACKFRAME_SZ + KGDB_I2]; \ |
| 63 | std %i4, [%reg + STACKFRAME_SZ + KGDB_I4]; \ |
| 64 | std %i6, [%reg + STACKFRAME_SZ + KGDB_I6]; |
| 65 | |
| 66 | #define SAVE_KGDB_SREGS(reg, reg_y, reg_psr, reg_wim, reg_tbr, reg_pc, reg_npc) \ |
| 67 | st %reg_y, [%reg + STACKFRAME_SZ + KGDB_Y]; \ |
| 68 | st %reg_psr, [%reg + STACKFRAME_SZ + KGDB_PSR]; \ |
| 69 | st %reg_wim, [%reg + STACKFRAME_SZ + KGDB_WIM]; \ |
| 70 | st %reg_tbr, [%reg + STACKFRAME_SZ + KGDB_TBR]; \ |
| 71 | st %reg_pc, [%reg + STACKFRAME_SZ + KGDB_PC]; \ |
| 72 | st %reg_npc, [%reg + STACKFRAME_SZ + KGDB_NPC]; |
| 73 | |
| 74 | #define LOAD_KGDB_GLOBALS(reg) \ |
| 75 | ld [%reg + STACKFRAME_SZ + KGDB_G1], %g1; \ |
| 76 | ldd [%reg + STACKFRAME_SZ + KGDB_G2], %g2; \ |
| 77 | ldd [%reg + STACKFRAME_SZ + KGDB_G4], %g4; \ |
| 78 | ldd [%reg + STACKFRAME_SZ + KGDB_G6], %g6; |
| 79 | |
| 80 | #define LOAD_KGDB_INS(reg) \ |
| 81 | ldd [%reg + STACKFRAME_SZ + KGDB_I0], %i0; \ |
| 82 | ldd [%reg + STACKFRAME_SZ + KGDB_I2], %i2; \ |
| 83 | ldd [%reg + STACKFRAME_SZ + KGDB_I4], %i4; \ |
| 84 | ldd [%reg + STACKFRAME_SZ + KGDB_I6], %i6; |
| 85 | |
| 86 | #define LOAD_KGDB_SREGS(reg, reg_y, reg_psr, reg_wim, reg_tbr, reg_pc, reg_npc) \ |
| 87 | ld [%reg + STACKFRAME_SZ + KGDB_Y], %reg_y; \ |
| 88 | ld [%reg + STACKFRAME_SZ + KGDB_PSR], %reg_psr; \ |
| 89 | ld [%reg + STACKFRAME_SZ + KGDB_WIM], %reg_wim; \ |
| 90 | ld [%reg + STACKFRAME_SZ + KGDB_TBR], %reg_tbr; \ |
| 91 | ld [%reg + STACKFRAME_SZ + KGDB_PC], %reg_pc; \ |
| 92 | ld [%reg + STACKFRAME_SZ + KGDB_NPC], %reg_npc; |
| 93 | |
| 94 | #endif /* !(_SPARC_KGDB_H) */ |