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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * kgdb support for ARC
| *
| * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
| */
|
| #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__ */
|
|
