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60 lines
1.2 KiB
60 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* kgdb support for ARC |
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* |
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* Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) |
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*/ |
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#ifndef __ARC_KGDB_H__ |
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#define __ARC_KGDB_H__ |
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#ifdef CONFIG_KGDB |
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#include <asm/ptrace.h> |
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/* to ensure compatibility with Linux 2.6.35, we don't implement the get/set |
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* register API yet */ |
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#undef DBG_MAX_REG_NUM |
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#define GDB_MAX_REGS 87 |
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#define BREAK_INSTR_SIZE 2 |
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#define CACHE_FLUSH_IS_SAFE 1 |
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#define NUMREGBYTES (GDB_MAX_REGS * 4) |
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#define BUFMAX 2048 |
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static inline void arch_kgdb_breakpoint(void) |
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{ |
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__asm__ __volatile__ ("trap_s 0x4\n"); |
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} |
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extern void kgdb_trap(struct pt_regs *regs); |
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/* This is the numbering of registers according to the GDB. See GDB's |
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* arc-tdep.h for details. |
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* |
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* Registers are ordered for GDB 7.5. It is incompatible with GDB 6.8. */ |
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enum arc_linux_regnums { |
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_R0 = 0, |
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_R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13, |
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_R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24, |
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_R25, _R26, |
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_FP = 27, |
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__SP = 28, |
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_R30 = 30, |
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_BLINK = 31, |
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_LP_COUNT = 60, |
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_STOP_PC = 64, |
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_RET = 64, |
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_LP_START = 65, |
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_LP_END = 66, |
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_STATUS32 = 67, |
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_ECR = 76, |
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_BTA = 82, |
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}; |
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#else |
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#define kgdb_trap(regs) |
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#endif |
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#endif /* __ARC_KGDB_H__ */
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