25c74b10ba
This patch registers exception handlers for tracing to a trace IDT. To implemented it in set_intr_gate(), this patch does followings. - Register the exception handlers to the trace IDT by prepending "trace_" to the handler's names. - Also, newly introduce trace_page_fault() to add tracepoints in a subsequent patch. Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com> Link: http://lkml.kernel.org/r/52716DEC.5050204@hds.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
133 lines
4.8 KiB
C
133 lines
4.8 KiB
C
#ifndef _ASM_X86_TRAPS_H
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#define _ASM_X86_TRAPS_H
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#include <linux/kprobes.h>
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#include <asm/debugreg.h>
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#include <asm/siginfo.h> /* TRAP_TRACE, ... */
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#define dotraplinkage __visible
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asmlinkage void divide_error(void);
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asmlinkage void debug(void);
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asmlinkage void nmi(void);
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asmlinkage void int3(void);
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asmlinkage void xen_debug(void);
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asmlinkage void xen_int3(void);
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asmlinkage void xen_stack_segment(void);
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asmlinkage void overflow(void);
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asmlinkage void bounds(void);
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asmlinkage void invalid_op(void);
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asmlinkage void device_not_available(void);
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#ifdef CONFIG_X86_64
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asmlinkage void double_fault(void);
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#endif
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asmlinkage void coprocessor_segment_overrun(void);
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asmlinkage void invalid_TSS(void);
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asmlinkage void segment_not_present(void);
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asmlinkage void stack_segment(void);
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asmlinkage void general_protection(void);
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asmlinkage void page_fault(void);
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asmlinkage void async_page_fault(void);
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asmlinkage void spurious_interrupt_bug(void);
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asmlinkage void coprocessor_error(void);
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asmlinkage void alignment_check(void);
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#ifdef CONFIG_X86_MCE
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asmlinkage void machine_check(void);
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#endif /* CONFIG_X86_MCE */
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asmlinkage void simd_coprocessor_error(void);
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#ifdef CONFIG_TRACING
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asmlinkage void trace_page_fault(void);
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#define trace_divide_error divide_error
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#define trace_bounds bounds
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#define trace_invalid_op invalid_op
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#define trace_device_not_available device_not_available
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#define trace_coprocessor_segment_overrun coprocessor_segment_overrun
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#define trace_invalid_TSS invalid_TSS
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#define trace_segment_not_present segment_not_present
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#define trace_general_protection general_protection
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#define trace_spurious_interrupt_bug spurious_interrupt_bug
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#define trace_coprocessor_error coprocessor_error
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#define trace_alignment_check alignment_check
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#define trace_simd_coprocessor_error simd_coprocessor_error
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#define trace_async_page_fault async_page_fault
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#endif
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dotraplinkage void do_divide_error(struct pt_regs *, long);
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dotraplinkage void do_debug(struct pt_regs *, long);
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dotraplinkage void do_nmi(struct pt_regs *, long);
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dotraplinkage void do_int3(struct pt_regs *, long);
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dotraplinkage void do_overflow(struct pt_regs *, long);
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dotraplinkage void do_bounds(struct pt_regs *, long);
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dotraplinkage void do_invalid_op(struct pt_regs *, long);
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dotraplinkage void do_device_not_available(struct pt_regs *, long);
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dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
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dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
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dotraplinkage void do_segment_not_present(struct pt_regs *, long);
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dotraplinkage void do_stack_segment(struct pt_regs *, long);
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#ifdef CONFIG_X86_64
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dotraplinkage void do_double_fault(struct pt_regs *, long);
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asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
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#endif
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dotraplinkage void do_general_protection(struct pt_regs *, long);
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dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
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#ifdef CONFIG_TRACING
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dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long);
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#endif
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dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
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dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
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dotraplinkage void do_alignment_check(struct pt_regs *, long);
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#ifdef CONFIG_X86_MCE
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dotraplinkage void do_machine_check(struct pt_regs *, long);
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#endif
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dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
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#ifdef CONFIG_X86_32
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dotraplinkage void do_iret_error(struct pt_regs *, long);
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#endif
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static inline int get_si_code(unsigned long condition)
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{
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if (condition & DR_STEP)
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return TRAP_TRACE;
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else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
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return TRAP_HWBKPT;
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else
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return TRAP_BRKPT;
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}
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extern int panic_on_unrecovered_nmi;
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void math_error(struct pt_regs *, int, int);
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void math_emulate(struct math_emu_info *);
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#ifndef CONFIG_X86_32
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asmlinkage void smp_thermal_interrupt(void);
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asmlinkage void mce_threshold_interrupt(void);
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#endif
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/* Interrupts/Exceptions */
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enum {
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X86_TRAP_DE = 0, /* 0, Divide-by-zero */
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X86_TRAP_DB, /* 1, Debug */
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X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
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X86_TRAP_BP, /* 3, Breakpoint */
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X86_TRAP_OF, /* 4, Overflow */
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X86_TRAP_BR, /* 5, Bound Range Exceeded */
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X86_TRAP_UD, /* 6, Invalid Opcode */
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X86_TRAP_NM, /* 7, Device Not Available */
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X86_TRAP_DF, /* 8, Double Fault */
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X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
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X86_TRAP_TS, /* 10, Invalid TSS */
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X86_TRAP_NP, /* 11, Segment Not Present */
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X86_TRAP_SS, /* 12, Stack Segment Fault */
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X86_TRAP_GP, /* 13, General Protection Fault */
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X86_TRAP_PF, /* 14, Page Fault */
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X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
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X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
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X86_TRAP_AC, /* 17, Alignment Check */
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X86_TRAP_MC, /* 18, Machine Check */
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X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
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X86_TRAP_IRET = 32, /* 32, IRET Exception */
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};
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#endif /* _ASM_X86_TRAPS_H */
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