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| /* SPDX-License-Identifier: GPL-2.0 */
| #ifndef _ASM_X86_KGDB_H
| #define _ASM_X86_KGDB_H
|
| /*
| * Copyright (C) 2001-2004 Amit S. Kale
| * Copyright (C) 2008 Wind River Systems, Inc.
| */
|
| #include <asm/ptrace.h>
|
| /*
| * BUFMAX defines the maximum number of characters in inbound/outbound
| * buffers at least NUMREGBYTES*2 are needed for register packets
| * Longer buffer is needed to list all threads
| */
| #define BUFMAX 1024
|
| /*
| * Note that this register image is in a different order than
| * the register image that Linux produces at interrupt time.
| *
| * Linux's register image is defined by struct pt_regs in ptrace.h.
| * Just why GDB uses a different order is a historical mystery.
| */
| #ifdef CONFIG_X86_32
| enum regnames {
| GDB_AX, /* 0 */
| GDB_CX, /* 1 */
| GDB_DX, /* 2 */
| GDB_BX, /* 3 */
| GDB_SP, /* 4 */
| GDB_BP, /* 5 */
| GDB_SI, /* 6 */
| GDB_DI, /* 7 */
| GDB_PC, /* 8 also known as eip */
| GDB_PS, /* 9 also known as eflags */
| GDB_CS, /* 10 */
| GDB_SS, /* 11 */
| GDB_DS, /* 12 */
| GDB_ES, /* 13 */
| GDB_FS, /* 14 */
| GDB_GS, /* 15 */
| };
| #define GDB_ORIG_AX 41
| #define DBG_MAX_REG_NUM 16
| #define NUMREGBYTES ((GDB_GS+1)*4)
| #else /* ! CONFIG_X86_32 */
| enum regnames {
| GDB_AX, /* 0 */
| GDB_BX, /* 1 */
| GDB_CX, /* 2 */
| GDB_DX, /* 3 */
| GDB_SI, /* 4 */
| GDB_DI, /* 5 */
| GDB_BP, /* 6 */
| GDB_SP, /* 7 */
| GDB_R8, /* 8 */
| GDB_R9, /* 9 */
| GDB_R10, /* 10 */
| GDB_R11, /* 11 */
| GDB_R12, /* 12 */
| GDB_R13, /* 13 */
| GDB_R14, /* 14 */
| GDB_R15, /* 15 */
| GDB_PC, /* 16 */
| GDB_PS, /* 17 */
| GDB_CS, /* 18 */
| GDB_SS, /* 19 */
| GDB_DS, /* 20 */
| GDB_ES, /* 21 */
| GDB_FS, /* 22 */
| GDB_GS, /* 23 */
| };
| #define GDB_ORIG_AX 57
| #define DBG_MAX_REG_NUM 24
| /* 17 64 bit regs and 5 32 bit regs */
| #define NUMREGBYTES ((17 * 8) + (5 * 4))
| #endif /* ! CONFIG_X86_32 */
|
| static inline void arch_kgdb_breakpoint(void)
| {
| asm(" int $3");
| }
| #define BREAK_INSTR_SIZE 1
| #define CACHE_FLUSH_IS_SAFE 1
| #define GDB_ADJUSTS_BREAK_OFFSET
|
| extern int kgdb_ll_trap(int cmd, const char *str,
| struct pt_regs *regs, long err, int trap, int sig);
|
| #endif /* _ASM_X86_KGDB_H */
|
|
