| /* |
| * kgdb support for ARC |
| * |
| * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef __ARC_KGDB_H__ |
| #define __ARC_KGDB_H__ |
| |
| #ifdef CONFIG_KGDB |
| |
| #include <asm/ptrace.h> |
| |
| /* to ensure compatibility with Linux 2.6.35, we don't implement the get/set |
| * register API yet */ |
| #undef DBG_MAX_REG_NUM |
| |
| #define GDB_MAX_REGS 87 |
| |
| #define BREAK_INSTR_SIZE 2 |
| #define CACHE_FLUSH_IS_SAFE 1 |
| #define NUMREGBYTES (GDB_MAX_REGS * 4) |
| #define BUFMAX 2048 |
| |
| static inline void arch_kgdb_breakpoint(void) |
| { |
| __asm__ __volatile__ ("trap_s 0x4\n"); |
| } |
| |
| extern void kgdb_trap(struct pt_regs *regs); |
| |
| /* This is the numbering of registers according to the GDB. See GDB's |
| * arc-tdep.h for details. |
| * |
| * Registers are ordered for GDB 7.5. It is incompatible with GDB 6.8. */ |
| enum arc_linux_regnums { |
| _R0 = 0, |
| _R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13, |
| _R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24, |
| _R25, _R26, |
| _FP = 27, |
| __SP = 28, |
| _R30 = 30, |
| _BLINK = 31, |
| _LP_COUNT = 60, |
| _STOP_PC = 64, |
| _RET = 64, |
| _LP_START = 65, |
| _LP_END = 66, |
| _STATUS32 = 67, |
| _ECR = 76, |
| _BTA = 82, |
| }; |
| |
| #else |
| #define kgdb_trap(regs) |
| #endif |
| |
| #endif /* __ARC_KGDB_H__ */ |
