cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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kgdb.h (1239B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * kgdb support for ARC
      4 *
      5 * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
      6 */
      7
      8#ifndef __ARC_KGDB_H__
      9#define __ARC_KGDB_H__
     10
     11#ifdef CONFIG_KGDB
     12
     13#include <asm/ptrace.h>
     14
     15/* to ensure compatibility with Linux 2.6.35, we don't implement the get/set
     16 * register API yet */
     17#undef DBG_MAX_REG_NUM
     18
     19#define GDB_MAX_REGS		87
     20
     21#define BREAK_INSTR_SIZE	2
     22#define CACHE_FLUSH_IS_SAFE	1
     23#define NUMREGBYTES		(GDB_MAX_REGS * 4)
     24#define BUFMAX			2048
     25
     26static inline void arch_kgdb_breakpoint(void)
     27{
     28	__asm__ __volatile__ ("trap_s	0x4\n");
     29}
     30
     31extern void kgdb_trap(struct pt_regs *regs);
     32
     33/* This is the numbering of registers according to the GDB. See GDB's
     34 * arc-tdep.h for details.
     35 *
     36 * Registers are ordered for GDB 7.5. It is incompatible with GDB 6.8. */
     37enum arc_linux_regnums {
     38	_R0		= 0,
     39	_R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13,
     40	_R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24,
     41	_R25, _R26,
     42	_FP		= 27,
     43	__SP		= 28,
     44	_R30		= 30,
     45	_BLINK		= 31,
     46	_LP_COUNT	= 60,
     47	_STOP_PC	= 64,
     48	_RET		= 64,
     49	_LP_START	= 65,
     50	_LP_END		= 66,
     51	_STATUS32	= 67,
     52	_ECR		= 76,
     53	_BTA		= 82,
     54};
     55
     56#else
     57#define kgdb_trap(regs)
     58#endif
     59
     60#endif	/* __ARC_KGDB_H__ */