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Diffstat (limited to 'include/asm-sparc/kgdb.h')
| -rw-r--r-- | include/asm-sparc/kgdb.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/include/asm-sparc/kgdb.h b/include/asm-sparc/kgdb.h new file mode 100644 index 0000000..d120adf --- /dev/null +++ b/include/asm-sparc/kgdb.h @@ -0,0 +1,94 @@ +/* $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) */ |