Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / arch / x86 / include / asm / kgdb.h
blob77e95f54570a9728816055df2e6c562e1a608ccc
1 #ifndef _ASM_X86_KGDB_H
2 #define _ASM_X86_KGDB_H
4 /*
5 * Copyright (C) 2001-2004 Amit S. Kale
6 * Copyright (C) 2008 Wind River Systems, Inc.
7 */
9 /*
10 * BUFMAX defines the maximum number of characters in inbound/outbound
11 * buffers at least NUMREGBYTES*2 are needed for register packets
12 * Longer buffer is needed to list all threads
14 #define BUFMAX 1024
17 * Note that this register image is in a different order than
18 * the register image that Linux produces at interrupt time.
20 * Linux's register image is defined by struct pt_regs in ptrace.h.
21 * Just why GDB uses a different order is a historical mystery.
23 #ifdef CONFIG_X86_32
24 enum regnames {
25 GDB_AX, /* 0 */
26 GDB_CX, /* 1 */
27 GDB_DX, /* 2 */
28 GDB_BX, /* 3 */
29 GDB_SP, /* 4 */
30 GDB_BP, /* 5 */
31 GDB_SI, /* 6 */
32 GDB_DI, /* 7 */
33 GDB_PC, /* 8 also known as eip */
34 GDB_PS, /* 9 also known as eflags */
35 GDB_CS, /* 10 */
36 GDB_SS, /* 11 */
37 GDB_DS, /* 12 */
38 GDB_ES, /* 13 */
39 GDB_FS, /* 14 */
40 GDB_GS, /* 15 */
42 #define GDB_ORIG_AX 41
43 #define DBG_MAX_REG_NUM 16
44 #define NUMREGBYTES ((GDB_GS+1)*4)
45 #else /* ! CONFIG_X86_32 */
46 enum regnames {
47 GDB_AX, /* 0 */
48 GDB_BX, /* 1 */
49 GDB_CX, /* 2 */
50 GDB_DX, /* 3 */
51 GDB_SI, /* 4 */
52 GDB_DI, /* 5 */
53 GDB_BP, /* 6 */
54 GDB_SP, /* 7 */
55 GDB_R8, /* 8 */
56 GDB_R9, /* 9 */
57 GDB_R10, /* 10 */
58 GDB_R11, /* 11 */
59 GDB_R12, /* 12 */
60 GDB_R13, /* 13 */
61 GDB_R14, /* 14 */
62 GDB_R15, /* 15 */
63 GDB_PC, /* 16 */
64 GDB_PS, /* 17 */
65 GDB_CS, /* 18 */
66 GDB_SS, /* 19 */
68 #define GDB_ORIG_AX 57
69 #define DBG_MAX_REG_NUM 20
70 /* 17 64 bit regs and 3 32 bit regs */
71 #define NUMREGBYTES ((17 * 8) + (3 * 4))
72 #endif /* ! CONFIG_X86_32 */
74 static inline void arch_kgdb_breakpoint(void)
76 asm(" int $3");
78 #define BREAK_INSTR_SIZE 1
79 #define CACHE_FLUSH_IS_SAFE 1
80 #define GDB_ADJUSTS_BREAK_OFFSET
82 extern int kgdb_ll_trap(int cmd, const char *str,
83 struct pt_regs *regs, long err, int trap, int sig);
85 #endif /* _ASM_X86_KGDB_H */