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_stack_segment stack_segment 43 #define trace_divide_error divide_error 44 #define trace_bounds bounds 45 #define trace_invalid_op invalid_op 46 #define trace_device_not_available device_not_available 47 #define trace_coprocessor_segment_overrun coprocessor_segment_overrun 48 #define trace_invalid_TSS invalid_TSS 49 #define trace_segment_not_present segment_not_present 50 #define trace_general_protection general_protection 51 #define trace_spurious_interrupt_bug spurious_interrupt_bug 52 #define trace_coprocessor_error coprocessor_error 53 #define trace_alignment_check alignment_check 54 #define trace_simd_coprocessor_error simd_coprocessor_error 55 #define trace_async_page_fault async_page_fault 56 #endif 57 58 dotraplinkage void do_divide_error(struct pt_regs *, long); 59 dotraplinkage void do_debug(struct pt_regs *, long); 60 dotraplinkage void do_nmi(struct pt_regs *, long); 61 dotraplinkage void do_int3(struct pt_regs *, long); 62 dotraplinkage void do_overflow(struct pt_regs *, long); 63 dotraplinkage void do_bounds(struct pt_regs *, long); 64 dotraplinkage void do_invalid_op(struct pt_regs *, long); 65 dotraplinkage void do_device_not_available(struct pt_regs *, long); 66 dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long); 67 dotraplinkage void do_invalid_TSS(struct pt_regs *, long); 68 dotraplinkage void do_segment_not_present(struct pt_regs *, long); 69 dotraplinkage void do_stack_segment(struct pt_regs *, long); 70 #ifdef CONFIG_X86_64 71 dotraplinkage void do_double_fault(struct pt_regs *, long); 72 asmlinkage struct pt_regs *sync_regs(struct pt_regs *); 73 #endif 74 dotraplinkage void do_general_protection(struct pt_regs *, long); 75 dotraplinkage void do_page_fault(struct pt_regs *, unsigned long); 76 #ifdef CONFIG_TRACING 77 dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long); 78 #else 79 static inline void trace_do_page_fault(struct pt_regs *regs, unsigned long error) 80 { 81 do_page_fault(regs, error); 82 } 83 #endif 84 dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long); 85 dotraplinkage void do_coprocessor_error(struct pt_regs *, long); 86 dotraplinkage void do_alignment_check(struct pt_regs *, long); 87 #ifdef CONFIG_X86_MCE 88 dotraplinkage void do_machine_check(struct pt_regs *, long); 89 #endif 90 dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long); 91 #ifdef CONFIG_X86_32 92 dotraplinkage void do_iret_error(struct pt_regs *, long); 93 #endif 94 95 static inline int get_si_code(unsigned long condition) 96 { 97 if (condition & DR_STEP) 98 return TRAP_TRACE; 99 else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) 100 return TRAP_HWBKPT; 101 else 102 return TRAP_BRKPT; 103 } 104 105 extern int panic_on_unrecovered_nmi; 106 107 void math_emulate(struct math_emu_info *); 108 #ifndef CONFIG_X86_32 109 asmlinkage void smp_thermal_interrupt(void); 110 asmlinkage void mce_threshold_interrupt(void); 111 #endif 112 113 /* Interrupts/Exceptions */ 114 enum { 115 X86_TRAP_DE = 0, /* 0, Divide-by-zero */ 116 X86_TRAP_DB, /* 1, Debug */ 117 X86_TRAP_NMI, /* 2, Non-maskable Interrupt */ 118 X86_TRAP_BP, /* 3, Breakpoint */ 119 X86_TRAP_OF, /* 4, Overflow */ 120 X86_TRAP_BR, /* 5, Bound Range Exceeded */ 121 X86_TRAP_UD, /* 6, Invalid Opcode */ 122 X86_TRAP_NM, /* 7, Device Not Available */ 123 X86_TRAP_DF, /* 8, Double Fault */ 124 X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */ 125 X86_TRAP_TS, /* 10, Invalid TSS */ 126 X86_TRAP_NP, /* 11, Segment Not Present */ 127 X86_TRAP_SS, /* 12, Stack Segment Fault */ 128 X86_TRAP_GP, /* 13, General Protection Fault */ 129 X86_TRAP_PF, /* 14, Page Fault */ 130 X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */ 131 X86_TRAP_MF, /* 16, x87 Floating-Point Exception */ 132 X86_TRAP_AC, /* 17, Alignment Check */ 133 X86_TRAP_MC, /* 18, Machine Check */ 134 X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */ 135 X86_TRAP_IRET = 32, /* 32, IRET Exception */ 136 }; 137 138 #endif /* _ASM_X86_TRAPS_H */ 139