cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

kgdb.h (2143B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _ASM_X86_KGDB_H
      3#define _ASM_X86_KGDB_H
      4
      5/*
      6 * Copyright (C) 2001-2004 Amit S. Kale
      7 * Copyright (C) 2008 Wind River Systems, Inc.
      8 */
      9
     10#include <asm/ptrace.h>
     11
     12/*
     13 * BUFMAX defines the maximum number of characters in inbound/outbound
     14 * buffers at least NUMREGBYTES*2 are needed for register packets
     15 * Longer buffer is needed to list all threads
     16 */
     17#define BUFMAX			1024
     18
     19/*
     20 *  Note that this register image is in a different order than
     21 *  the register image that Linux produces at interrupt time.
     22 *
     23 *  Linux's register image is defined by struct pt_regs in ptrace.h.
     24 *  Just why GDB uses a different order is a historical mystery.
     25 */
     26#ifdef CONFIG_X86_32
     27enum regnames {
     28	GDB_AX,			/* 0 */
     29	GDB_CX,			/* 1 */
     30	GDB_DX,			/* 2 */
     31	GDB_BX,			/* 3 */
     32	GDB_SP,			/* 4 */
     33	GDB_BP,			/* 5 */
     34	GDB_SI,			/* 6 */
     35	GDB_DI,			/* 7 */
     36	GDB_PC,			/* 8 also known as eip */
     37	GDB_PS,			/* 9 also known as eflags */
     38	GDB_CS,			/* 10 */
     39	GDB_SS,			/* 11 */
     40	GDB_DS,			/* 12 */
     41	GDB_ES,			/* 13 */
     42	GDB_FS,			/* 14 */
     43	GDB_GS,			/* 15 */
     44};
     45#define GDB_ORIG_AX		41
     46#define DBG_MAX_REG_NUM		16
     47#define NUMREGBYTES		((GDB_GS+1)*4)
     48#else /* ! CONFIG_X86_32 */
     49enum regnames {
     50	GDB_AX,			/* 0 */
     51	GDB_BX,			/* 1 */
     52	GDB_CX,			/* 2 */
     53	GDB_DX,			/* 3 */
     54	GDB_SI,			/* 4 */
     55	GDB_DI,			/* 5 */
     56	GDB_BP,			/* 6 */
     57	GDB_SP,			/* 7 */
     58	GDB_R8,			/* 8 */
     59	GDB_R9,			/* 9 */
     60	GDB_R10,		/* 10 */
     61	GDB_R11,		/* 11 */
     62	GDB_R12,		/* 12 */
     63	GDB_R13,		/* 13 */
     64	GDB_R14,		/* 14 */
     65	GDB_R15,		/* 15 */
     66	GDB_PC,			/* 16 */
     67	GDB_PS,			/* 17 */
     68	GDB_CS,			/* 18 */
     69	GDB_SS,			/* 19 */
     70	GDB_DS,			/* 20 */
     71	GDB_ES,			/* 21 */
     72	GDB_FS,			/* 22 */
     73	GDB_GS,			/* 23 */
     74};
     75#define GDB_ORIG_AX		57
     76#define DBG_MAX_REG_NUM		24
     77/* 17 64 bit regs and 5 32 bit regs */
     78#define NUMREGBYTES		((17 * 8) + (5 * 4))
     79#endif /* ! CONFIG_X86_32 */
     80
     81static inline void arch_kgdb_breakpoint(void)
     82{
     83	asm("   int $3");
     84}
     85#define BREAK_INSTR_SIZE	1
     86#define CACHE_FLUSH_IS_SAFE	1
     87#define GDB_ADJUSTS_BREAK_OFFSET
     88
     89extern int kgdb_ll_trap(int cmd, const char *str,
     90			struct pt_regs *regs, long err, int trap, int sig);
     91
     92#endif /* _ASM_X86_KGDB_H */