arch/x86/include/asm/traps.h

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