/* 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 [31mCONFIG_KGDB[0m #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__ */ |