76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
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* exception.c
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*
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* Copyright(c) 2007-2018 Jianjun Jiang <8192542@qq.com>
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* Official site: http://xboot.org
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* Mobile phone: +86-18665388956
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* QQ: 8192542
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <arm32.h>
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#include <string.h>
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static void show_regs(struct arm_regs_t * regs)
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{
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int i;
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printf("pc : [<%08lx>] lr : [<%08lx>] cpsr: %08lx\r\n", regs->pc, regs->lr, regs->cpsr);
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printf("sp : %08lx\r\n", regs->sp);
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for(i = 12; i >= 0; i--)
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{
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printf("r%-2d: %08lx ", i, regs->r[i]);
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if(i % 2 == 0)
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printf("\r\n");
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}
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printf("\r\n");
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}
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void arm32_do_undefined_instruction(struct arm_regs_t * regs)
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{
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//gdbserver_handle_exception(regs);
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}
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void arm32_do_software_interrupt(struct arm_regs_t * regs)
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{
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show_regs(regs);
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regs->pc += 4;
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}
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void arm32_do_prefetch_abort(struct arm_regs_t * regs)
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{
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show_regs(regs);
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regs->pc += 4;
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}
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void arm32_do_data_abort(struct arm_regs_t * regs)
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{
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show_regs(regs);
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regs->pc += 4;
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}
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_Noreturn void __fatal_error(const char *msg) {
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printf("%s\n", msg);
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while (1);
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}
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#ifndef NDEBUG
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_Noreturn void __assert_func(const char *file, int line, const char *func, const char *expr) {
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//printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
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__fatal_error("Assertion failed");
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}
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#endif |