| 1 | /* |
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| 2 | * __do_exception.c - first stage exception handler |
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| 3 | * |
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| 4 | * Copyright (c) 2008,2009,2010,2011,2012 Ghassan Almaless |
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| 5 | * Copyright (c) 2011,2012 UPMC Sorbonne Universites |
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| 6 | * |
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| 7 | * This file is part of ALMOS-kernel. |
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| 8 | * |
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| 9 | * ALMOS-kernel is free software; you can redistribute it and/or modify it |
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| 10 | * under the terms of the GNU General Public License as published by |
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| 11 | * the Free Software Foundation; version 2.0 of the License. |
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| 12 | * |
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| 13 | * ALMOS-kernel is distributed in the hope that it will be useful, but |
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| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
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| 20 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |
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| 23 | #include <types.h> |
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| 24 | #include <kdmsg.h> |
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| 25 | #include <cpu.h> |
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| 26 | #include <cpu-internal.h> |
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| 27 | |
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| 28 | static char *exception_name[32] = {"Division By Zero Exception", |
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| 29 | "Debug Exception", |
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| 30 | "Non Maskable Interrupt Exception", |
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| 31 | "Breakpoint Exception", |
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| 32 | "Into Detected Overflow Exception", |
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| 33 | "Out of Bounds Exception", |
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| 34 | "Invalid Opcode Exception", |
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| 35 | "Coprocessor Exception", |
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| 36 | "Double Fault Exception", |
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| 37 | "Coprocessor Segment Overrun Exception", |
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| 38 | "Bad TSS Exception", |
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| 39 | "Segment Not Present Exception", |
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| 40 | "Stack Fault Exception", |
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| 41 | "General Protection Fault Exception", |
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| 42 | "Page Fault Exception", |
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| 43 | "Unknown Interrupt Exception", |
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| 44 | "Coprocessor Fault Exception", |
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| 45 | "Alignment Check Exception (486+)", |
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| 46 | "Machine Check Exception (Pentium/586+)", |
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| 47 | "Resrved Exception", |
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| 48 | "Resrved Exception", |
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| 49 | "Resrved Exception", |
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| 50 | "Resrved Exception", |
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| 51 | "Resrved Exception", |
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| 52 | "Resrved Exception", |
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| 53 | "Resrved Exception", |
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| 54 | "Resrved Exception", |
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| 55 | "Resrved Exception", |
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| 56 | "Resrved Exception", |
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| 57 | "Resrved Exception", |
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| 58 | "Resrved Exception", |
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| 59 | "Resrved Exception"}; |
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| 60 | |
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| 61 | void __do_exception(struct cpu_regs_s *regs) |
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| 62 | { |
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| 63 | |
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| 64 | cpu_spinlock_lock(&exception_lock.val); |
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| 65 | |
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| 66 | except_dmsg("Exception has occured [ %s ]\n", exception_name[regs->int_nr]); |
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| 67 | except_dmsg("ret_cs %x\tret_eip %x\teflags %x\told_ss %x\told_esp %x\t err_code %x\n", |
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| 68 | regs->ret_cs,regs->ret_eip,regs->eflags, regs->old_ss, regs->old_esp, regs->err_code); |
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| 69 | |
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| 70 | except_dmsg("gs %x\tfs %x\tes %x\tds %x\n", regs->gs, regs->es, regs->ds); |
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| 71 | |
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| 72 | except_dmsg("ebp %x\tebx %x\tedx %x\tecx %x\teax %x\n", |
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| 73 | regs->ebx, regs->edx, regs->ecx, regs->eax); |
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| 74 | |
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| 75 | cpu_spinlock_unlock(&exception_lock.val); |
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| 76 | |
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| 77 | while(1); |
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| 78 | } |
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