| Mischa Jonker | f46121b | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 1 | /* |
| 2 | * kgdb support for ARC |
| 3 | * |
| 4 | * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #ifndef __ARC_KGDB_H__ |
| 12 | #define __ARC_KGDB_H__ |
| 13 | |
| 14 | #ifdef CONFIG_KGDB |
| 15 | |
| Vineet Gupta | 1540c85 | 2013-03-07 16:47:23 +0530 | [diff] [blame] | 16 | #include <asm/ptrace.h> |
| Mischa Jonker | f46121b | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 17 | |
| 18 | /* to ensure compatibility with Linux 2.6.35, we don't implement the get/set |
| 19 | * register API yet */ |
| 20 | #undef DBG_MAX_REG_NUM |
| 21 | |
| 22 | #define GDB_MAX_REGS 39 |
| 23 | |
| 24 | #define BREAK_INSTR_SIZE 2 |
| 25 | #define CACHE_FLUSH_IS_SAFE 1 |
| 26 | #define NUMREGBYTES (GDB_MAX_REGS * 4) |
| 27 | #define BUFMAX 2048 |
| 28 | |
| 29 | static inline void arch_kgdb_breakpoint(void) |
| 30 | { |
| 31 | __asm__ __volatile__ ("trap_s 0x4\n"); |
| 32 | } |
| 33 | |
| 34 | extern void kgdb_trap(struct pt_regs *regs, int param); |
| 35 | |
| 36 | enum arc700_linux_regnums { |
| 37 | _R0 = 0, |
| 38 | _R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13, |
| 39 | _R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24, |
| 40 | _R25, _R26, |
| 41 | _BTA = 27, |
| 42 | _LP_START = 28, |
| 43 | _LP_END = 29, |
| 44 | _LP_COUNT = 30, |
| 45 | _STATUS32 = 31, |
| 46 | _BLINK = 32, |
| 47 | _FP = 33, |
| 48 | __SP = 34, |
| 49 | _EFA = 35, |
| 50 | _RET = 36, |
| 51 | _ORIG_R8 = 37, |
| 52 | _STOP_PC = 38 |
| 53 | }; |
| 54 | |
| 55 | #else |
| Vineet Gupta | 1540c85 | 2013-03-07 16:47:23 +0530 | [diff] [blame] | 56 | #define kgdb_trap(regs, param) |
| Mischa Jonker | f46121b | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 57 | #endif |
| 58 | |
| 59 | #endif /* __ARC_KGDB_H__ */ |