92 lines
3.6 KiB
C
92 lines
3.6 KiB
C
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/*
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* Copyright (c) 2008 Travis Geiselbrecht
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <debug.h>
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#include <arch/arm.h>
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#include <kernel/thread.h>
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static void dump_fault_frame(struct arm_fault_frame *frame)
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{
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dprintf(CRITICAL, "r0 0x%08x r1 0x%08x r2 0x%08x r3 0x%08x\n", frame->r[0], frame->r[1], frame->r[2], frame->r[3]);
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dprintf(CRITICAL, "r4 0x%08x r5 0x%08x r6 0x%08x r7 0x%08x\n", frame->r[4], frame->r[5], frame->r[6], frame->r[7]);
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dprintf(CRITICAL, "r8 0x%08x r9 0x%08x r10 0x%08x r11 0x%08x\n", frame->r[8], frame->r[9], frame->r[10], frame->r[11]);
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dprintf(CRITICAL, "r12 0x%08x usp 0x%08x ulr 0x%08x pc 0x%08x\n", frame->r[12], frame->usp, frame->ulr, frame->pc);
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dprintf(CRITICAL, "spsr 0x%08x\n", frame->spsr);
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struct arm_mode_regs regs;
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arm_save_mode_regs(®s);
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dprintf(CRITICAL, "%c%s r13 0x%08x r14 0x%08x\n", ((frame->spsr & MODE_MASK) == MODE_FIQ) ? '*' : ' ', "fiq", regs.fiq_r13, regs.fiq_r14);
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dprintf(CRITICAL, "%c%s r13 0x%08x r14 0x%08x\n", ((frame->spsr & MODE_MASK) == MODE_IRQ) ? '*' : ' ', "irq", regs.irq_r13, regs.irq_r14);
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dprintf(CRITICAL, "%c%s r13 0x%08x r14 0x%08x\n", ((frame->spsr & MODE_MASK) == MODE_SVC) ? '*' : ' ', "svc", regs.svc_r13, regs.svc_r14);
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dprintf(CRITICAL, "%c%s r13 0x%08x r14 0x%08x\n", ((frame->spsr & MODE_MASK) == MODE_UND) ? '*' : ' ', "und", regs.und_r13, regs.und_r14);
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dprintf(CRITICAL, "%c%s r13 0x%08x r14 0x%08x\n", ((frame->spsr & MODE_MASK) == MODE_SYS) ? '*' : ' ', "sys", regs.sys_r13, regs.sys_r14);
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// dump the bottom of the current stack
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addr_t stack;
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switch (frame->spsr & MODE_MASK) {
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case MODE_FIQ: stack = regs.fiq_r13; break;
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case MODE_IRQ: stack = regs.irq_r13; break;
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case MODE_SVC: stack = regs.svc_r13; break;
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case MODE_UND: stack = regs.und_r13; break;
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case MODE_SYS: stack = regs.sys_r13; break;
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default:
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stack = 0;
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}
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if (stack != 0) {
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dprintf(CRITICAL, "bottom of stack at 0x%08x:\n", (unsigned int)stack);
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hexdump((void *)stack, 128);
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}
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}
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static void exception_die(struct arm_fault_frame *frame, int pc_off, const char *msg)
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{
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inc_critical_section();
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frame->pc += pc_off;
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dprintf(CRITICAL, msg);
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dump_fault_frame(frame);
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halt();
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for(;;);
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}
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void arm_syscall_handler(struct arm_fault_frame *frame)
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{
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exception_die(frame, -4, "unhandled syscall, halting\n");
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}
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void arm_undefined_handler(struct arm_fault_frame *frame)
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{
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exception_die(frame, -4, "undefined abort, halting\n");
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}
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void arm_data_abort_handler(struct arm_fault_frame *frame)
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{
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exception_die(frame, -8, "data abort, halting\n");
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}
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void arm_prefetch_abort_handler(struct arm_fault_frame *frame)
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{
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exception_die(frame, -4, "prefetch abort, halting\n");
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}
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