| /* |
| * 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 |