/*
* Copyright (C) 2001-2004 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - 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 ``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 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.
*/
#include <arch/interrupt.h>
#include <print.h>
#include <debug.h>
#include <panic.h>
#include <arch/i8259.h>
#include <func.h>
#include <cpu.h>
#include <arch/asm.h>
#include <mm/tlb.h>
#include <mm/as.h>
#include <arch.h>
#include <symtab.h>
#include <arch/asm.h>
#include <proc/scheduler.h>
#include <proc/thread.h>
/*
static void messy_stack_trace(__native *stack)
{
__native *upper_limit = (__native *)(((__native)get_stack_base()) + STACK_SIZE);
char *symbol;
printf("Stack contents: ");
while (stack < upper_limit) {
symbol = get_symtab_entry((__address)*stack);
if (symbol)
printf("%s, ", symbol);
stack++;
}
printf("\n");
}
*/
static void print_info_errcode(int n, struct interrupt_context *ctx)
{
char *symbol;
__u64 *x = &ctx->stack[0];
if (!(symbol=get_symtab_entry(x[1])))
symbol = "";
printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n
,__FUNCTION__
); printf("%%rip: %Q (%s)\n",ctx
->stack
[1],symbol
); printf("ERROR_WORD=%Q\n", ctx
->stack
[0]); printf("%%rcs=%Q,flags=%Q, %%cr0=%Q\n", ctx
->stack
[2], ctx->stack[3],read_cr0());
printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q\n",ctx
->rax
,ctx
->rbx
,ctx
->rcx
); printf("%%rdx=%Q, %%rsi=%Q, %%rdi=%Q\n",ctx
->rdx
,ctx
->rsi
,ctx
->rdi
); printf("%%r8 =%Q, %%r9 =%Q, %%r10=%Q\n",ctx
->r8
,ctx
->r9
,ctx
->r10
); printf("%%r11=%Q, %%r12=%Q, %%r13=%Q\n",ctx
->r11
,ctx
->r12
,ctx
->r13
); printf("%%r14=%Q, %%r15=%Q, %%rsp=%Q\n",ctx
->r14
,ctx
->r15
,&ctx
->stack
[0]); printf("%%rbp=%Q\n",ctx
->rbp
); printf("stack: %Q, %Q, %Q\n", x
[5], x
[6], x
[7]); printf(" %Q, %Q, %Q\n", x
[8], x
[9], x
[10]); printf(" %Q, %Q, %Q\n", x
[11], x
[12], x
[13]); printf(" %Q, %Q, %Q\n", x
[14], x
[15], x
[16]); // messy_stack_trace(&x[5]);
}
/*
* Interrupt and exception dispatching.
*/
void (* disable_irqs_function)(__u16 irqmask) = NULL;
void (* enable_irqs_function)(__u16 irqmask) = NULL;
void (* eoi_function)(void) = NULL;
void null_interrupt(int n, struct interrupt_context *ctx)
{
printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n
,__FUNCTION__
); \
printf("stack: %X, %X, %X, %X\n", ctx
->stack
[0], ctx
->stack
[1], ctx->stack[2], ctx->stack[3]);
panic("unserviced interrupt\n");
}
void gp_fault(int n, void *stack)
{
print_info_errcode(n,stack);
panic("general protection fault\n");
}
void ss_fault(int n, void *stack)
{
print_info_errcode(n,stack);
panic("stack fault\n");
}
void nm_fault(int n, void *stack)
{
#ifdef CONFIG_FPU_LAZY
scheduler_fpu_lazy_request();
#else
panic("fpu fault");
#endif
}
void page_fault(int n, struct interrupt_context *ctx)
{
__address page;
page = read_cr2();
if (!as_page_fault(page)) {
print_info_errcode(n,ctx);
printf("Page fault address: %Q\n", page
); panic("page fault\n");
}
}
void tlb_shootdown_ipi(int n, void *stack)
{
trap_virtual_eoi();
tlb_shootdown_ipi_recv();
}
void wakeup_ipi(int n, void *stack)
{
trap_virtual_eoi();
}
void trap_virtual_enable_irqs(__u16 irqmask)
{
if (enable_irqs_function)
enable_irqs_function(irqmask);
else
panic("no enable_irqs_function\n");
}
void trap_virtual_disable_irqs(__u16 irqmask)
{
if (disable_irqs_function)
disable_irqs_function(irqmask);
else
panic("no disable_irqs_function\n");
}
void trap_virtual_eoi(void)
{
if (eoi_function)
eoi_function();
else
panic("no eoi_function\n");
}