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traps.h
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1 #ifndef _ASM_X86_TRAPS_H
2 #define _ASM_X86_TRAPS_H
3 
4 #include <linux/kprobes.h>
5 
6 #include <asm/debugreg.h>
7 #include <asm/siginfo.h> /* TRAP_TRACE, ... */
8 
9 #ifdef CONFIG_X86_32
10 #define dotraplinkage
11 #else
12 #define dotraplinkage asmlinkage
13 #endif
14 
15 asmlinkage void divide_error(void);
16 asmlinkage void debug(void);
17 asmlinkage void nmi(void);
18 asmlinkage void int3(void);
19 asmlinkage void xen_debug(void);
20 asmlinkage void xen_int3(void);
21 asmlinkage void xen_stack_segment(void);
22 asmlinkage void overflow(void);
23 asmlinkage void bounds(void);
24 asmlinkage void invalid_op(void);
25 asmlinkage void device_not_available(void);
26 #ifdef CONFIG_X86_64
27 asmlinkage void double_fault(void);
28 #endif
29 asmlinkage void coprocessor_segment_overrun(void);
30 asmlinkage void invalid_TSS(void);
31 asmlinkage void segment_not_present(void);
32 asmlinkage void stack_segment(void);
33 asmlinkage void general_protection(void);
34 asmlinkage void page_fault(void);
35 asmlinkage void async_page_fault(void);
36 asmlinkage void spurious_interrupt_bug(void);
37 asmlinkage void coprocessor_error(void);
38 asmlinkage void alignment_check(void);
39 #ifdef CONFIG_X86_MCE
40 asmlinkage void machine_check(void);
41 #endif /* CONFIG_X86_MCE */
42 asmlinkage void simd_coprocessor_error(void);
43 
44 dotraplinkage void do_divide_error(struct pt_regs *, long);
45 dotraplinkage void do_debug(struct pt_regs *, long);
46 dotraplinkage void do_nmi(struct pt_regs *, long);
47 dotraplinkage void do_int3(struct pt_regs *, long);
48 dotraplinkage void do_overflow(struct pt_regs *, long);
49 dotraplinkage void do_bounds(struct pt_regs *, long);
50 dotraplinkage void do_invalid_op(struct pt_regs *, long);
51 dotraplinkage void do_device_not_available(struct pt_regs *, long);
52 dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
53 dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
54 dotraplinkage void do_segment_not_present(struct pt_regs *, long);
55 dotraplinkage void do_stack_segment(struct pt_regs *, long);
56 #ifdef CONFIG_X86_64
57 dotraplinkage void do_double_fault(struct pt_regs *, long);
58 asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
59 #endif
60 dotraplinkage void do_general_protection(struct pt_regs *, long);
61 dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
62 dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
63 dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
64 dotraplinkage void do_alignment_check(struct pt_regs *, long);
65 #ifdef CONFIG_X86_MCE
66 dotraplinkage void do_machine_check(struct pt_regs *, long);
67 #endif
68 dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
69 #ifdef CONFIG_X86_32
70 dotraplinkage void do_iret_error(struct pt_regs *, long);
71 #endif
72 
73 static inline int get_si_code(unsigned long condition)
74 {
75  if (condition & DR_STEP)
76  return TRAP_TRACE;
77  else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
78  return TRAP_HWBKPT;
79  else
80  return TRAP_BRKPT;
81 }
82 
83 extern int panic_on_unrecovered_nmi;
84 
85 void math_error(struct pt_regs *, int, int);
86 void math_emulate(struct math_emu_info *);
87 #ifndef CONFIG_X86_32
88 asmlinkage void smp_thermal_interrupt(void);
89 asmlinkage void mce_threshold_interrupt(void);
90 #endif
91 
92 /* Interrupts/Exceptions */
93 enum {
94  X86_TRAP_DE = 0, /* 0, Divide-by-zero */
95  X86_TRAP_DB, /* 1, Debug */
96  X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
97  X86_TRAP_BP, /* 3, Breakpoint */
98  X86_TRAP_OF, /* 4, Overflow */
99  X86_TRAP_BR, /* 5, Bound Range Exceeded */
100  X86_TRAP_UD, /* 6, Invalid Opcode */
101  X86_TRAP_NM, /* 7, Device Not Available */
102  X86_TRAP_DF, /* 8, Double Fault */
103  X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
104  X86_TRAP_TS, /* 10, Invalid TSS */
105  X86_TRAP_NP, /* 11, Segment Not Present */
106  X86_TRAP_SS, /* 12, Stack Segment Fault */
107  X86_TRAP_GP, /* 13, General Protection Fault */
108  X86_TRAP_PF, /* 14, Page Fault */
109  X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
110  X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
111  X86_TRAP_AC, /* 17, Alignment Check */
112  X86_TRAP_MC, /* 18, Machine Check */
113  X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
114  X86_TRAP_IRET = 32, /* 32, IRET Exception */
115 };
116 
117 #endif /* _ASM_X86_TRAPS_H */
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