tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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#define dotraplinkage __visible
10
11asmlinkage void divide_error(void);
12asmlinkage void debug(void);
13asmlinkage void nmi(void);
14asmlinkage void int3(void);
15asmlinkage void xen_debug(void);
16asmlinkage void xen_int3(void);
17asmlinkage void xen_stack_segment(void);
18asmlinkage void overflow(void);
19asmlinkage void bounds(void);
20asmlinkage void invalid_op(void);
21asmlinkage void device_not_available(void);
22#ifdef CONFIG_X86_64
23asmlinkage void double_fault(void);
24#endif
25asmlinkage void coprocessor_segment_overrun(void);
26asmlinkage void invalid_TSS(void);
27asmlinkage void segment_not_present(void);
28asmlinkage void stack_segment(void);
29asmlinkage void general_protection(void);
30asmlinkage void page_fault(void);
31asmlinkage void async_page_fault(void);
32asmlinkage void spurious_interrupt_bug(void);
33asmlinkage void coprocessor_error(void);
34asmlinkage void alignment_check(void);
35#ifdef CONFIG_X86_MCE
36asmlinkage void machine_check(void);
37#endif /* CONFIG_X86_MCE */
38asmlinkage void simd_coprocessor_error(void);
39
40#ifdef CONFIG_TRACING
41asmlinkage void trace_page_fault(void);
42#define trace_divide_error divide_error
43#define trace_bounds bounds
44#define trace_invalid_op invalid_op
45#define trace_device_not_available device_not_available
46#define trace_coprocessor_segment_overrun coprocessor_segment_overrun
47#define trace_invalid_TSS invalid_TSS
48#define trace_segment_not_present segment_not_present
49#define trace_general_protection general_protection
50#define trace_spurious_interrupt_bug spurious_interrupt_bug
51#define trace_coprocessor_error coprocessor_error
52#define trace_alignment_check alignment_check
53#define trace_simd_coprocessor_error simd_coprocessor_error
54#define trace_async_page_fault async_page_fault
55#endif
56
57dotraplinkage void do_divide_error(struct pt_regs *, long);
58dotraplinkage void do_debug(struct pt_regs *, long);
59dotraplinkage void do_nmi(struct pt_regs *, long);
60dotraplinkage void do_int3(struct pt_regs *, long);
61dotraplinkage void do_overflow(struct pt_regs *, long);
62dotraplinkage void do_bounds(struct pt_regs *, long);
63dotraplinkage void do_invalid_op(struct pt_regs *, long);
64dotraplinkage void do_device_not_available(struct pt_regs *, long);
65dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
66dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
67dotraplinkage void do_segment_not_present(struct pt_regs *, long);
68dotraplinkage void do_stack_segment(struct pt_regs *, long);
69#ifdef CONFIG_X86_64
70dotraplinkage void do_double_fault(struct pt_regs *, long);
71asmlinkage struct pt_regs *sync_regs(struct pt_regs *);
72#endif
73dotraplinkage void do_general_protection(struct pt_regs *, long);
74dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
75#ifdef CONFIG_TRACING
76dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long);
77#else
78static inline void trace_do_page_fault(struct pt_regs *regs, unsigned long error)
79{
80 do_page_fault(regs, error);
81}
82#endif
83dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
84dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
85dotraplinkage void do_alignment_check(struct pt_regs *, long);
86#ifdef CONFIG_X86_MCE
87dotraplinkage void do_machine_check(struct pt_regs *, long);
88#endif
89dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
90#ifdef CONFIG_X86_32
91dotraplinkage void do_iret_error(struct pt_regs *, long);
92#endif
93
94static inline int get_si_code(unsigned long condition)
95{
96 if (condition & DR_STEP)
97 return TRAP_TRACE;
98 else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
99 return TRAP_HWBKPT;
100 else
101 return TRAP_BRKPT;
102}
103
104extern int panic_on_unrecovered_nmi;
105
106void math_emulate(struct math_emu_info *);
107#ifndef CONFIG_X86_32
108asmlinkage void smp_thermal_interrupt(void);
109asmlinkage void mce_threshold_interrupt(void);
110#endif
111
112/* Interrupts/Exceptions */
113enum {
114 X86_TRAP_DE = 0, /* 0, Divide-by-zero */
115 X86_TRAP_DB, /* 1, Debug */
116 X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
117 X86_TRAP_BP, /* 3, Breakpoint */
118 X86_TRAP_OF, /* 4, Overflow */
119 X86_TRAP_BR, /* 5, Bound Range Exceeded */
120 X86_TRAP_UD, /* 6, Invalid Opcode */
121 X86_TRAP_NM, /* 7, Device Not Available */
122 X86_TRAP_DF, /* 8, Double Fault */
123 X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
124 X86_TRAP_TS, /* 10, Invalid TSS */
125 X86_TRAP_NP, /* 11, Segment Not Present */
126 X86_TRAP_SS, /* 12, Stack Segment Fault */
127 X86_TRAP_GP, /* 13, General Protection Fault */
128 X86_TRAP_PF, /* 14, Page Fault */
129 X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
130 X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
131 X86_TRAP_AC, /* 17, Alignment Check */
132 X86_TRAP_MC, /* 18, Machine Check */
133 X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
134 X86_TRAP_IRET = 32, /* 32, IRET Exception */
135};
136
137#endif /* _ASM_X86_TRAPS_H */