/* * This file is part of the libpayload project. * * Copyright 2013 Google Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _ARCH_EXCEPTION_H #define _ARCH_EXCEPTION_H #include <stdint.h> void exception_init_asm(void); void exception_dispatch(void); struct exception_state { /* Careful: x86/gdb.c currently relies on the size and order of regs. */ struct { u32 eax; u32 ecx; u32 edx; u32 ebx; u32 esp; u32 ebp; u32 esi; u32 edi; u32 eip; u32 eflags; u32 cs; u32 ss; u32 ds; u32 es; u32 fs; u32 gs; } regs; u32 error_code; u32 vector; } __attribute__((packed)); extern struct exception_state *exception_state; extern u32 exception_stack[]; extern u32 *exception_stack_end; enum { EXC_DE = 0, /* Divide by zero */ EXC_DB = 1, /* Debug */ EXC_NMI = 2, /* Non maskable interrupt */ EXC_BP = 3, /* Breakpoint */ EXC_OF = 4, /* Overflow */ EXC_BR = 5, /* Bound range */ EXC_UD = 6, /* Invalid opcode */ EXC_NM = 7, /* Device not available */ EXC_DF = 8, /* Double fault */ EXC_TS = 10, /* Invalid TSS */ EXC_NP = 11, /* Segment not present */ EXC_SS = 12, /* Stack */ EXC_GP = 13, /* General protection */ EXC_PF = 14, /* Page fault */ EXC_MF = 16, /* x87 floating point */ EXC_AC = 17, /* Alignment check */ EXC_MC = 18, /* Machine check */ EXC_XF = 19, /* SIMD floating point */ EXC_SX = 30, /* Security */ EXC_COUNT }; #endif