Subversion Repositories HelenOS

Rev

Rev 299 | Rev 391 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (C) 2001-2004 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include <arch/interrupt.h>
  30. #include <print.h>
  31. #include <debug.h>
  32. #include <panic.h>
  33. #include <arch/i8259.h>
  34. #include <func.h>
  35. #include <cpu.h>
  36. #include <arch/asm.h>
  37. #include <mm/tlb.h>
  38. #include <arch.h>
  39. #include <symtab.h>
  40. #include <arch/asm.h>
  41. #include <proc/scheduler.h>
  42.  
  43.  
  44. static void messy_stack_trace(__native *stack)
  45. {
  46.     __native *upper_limit = (__native *)(((__native)get_stack_base()) + STACK_SIZE);
  47.     char *symbol;
  48.  
  49.     printf("Stack contents: ");
  50.     while (stack < upper_limit) {
  51.         symbol = get_symtab_entry((__address)*stack);
  52.         if (symbol)
  53.             printf("%s, ", symbol);
  54.         stack++;
  55.     }
  56.     printf("\n");
  57. }
  58.  
  59. static void print_info_errcode(__u8 n, __native x[])
  60. {
  61.     char *symbol;
  62.  
  63.     if (!(symbol=get_symtab_entry(x[1])))
  64.         symbol = "";
  65.  
  66.     printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__);
  67.     printf("%%rip: %Q (%s)\n",x[1],symbol);
  68.     printf("ERROR_WORD=%Q\n", x[0]);
  69.     printf("%%rcs=%Q,flags=%Q, %%cr0=%Q\n", x[2], x[3],read_cr0());
  70.     printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q\n",x[-2],x[-3],x[-4]);
  71.     printf("%%rdx=%Q, %%rsi=%Q, %%rdi=%Q\n",x[-5],x[-6],x[-7]);
  72.     printf("%%r8 =%Q, %%r9 =%Q, %%r10=%Q\n",x[-8],x[-9],x[-10]);
  73.     printf("%%r11=%Q, %%r12=%Q, %%r13=%Q\n",x[-11],x[-12],x[-13]);
  74.     printf("%%r14=%Q, %%r15=%Q, %%rsp=%Q\n",x[-14],x[-15],x);
  75.     printf("%%rbp=%Q\n",x[-1]);
  76.     printf("stack: %Q, %Q, %Q\n", x[5], x[6], x[7]);
  77.     printf("       %Q, %Q, %Q\n", x[8], x[9], x[10]);
  78.     printf("       %Q, %Q, %Q\n", x[11], x[12], x[13]);
  79.     printf("       %Q, %Q, %Q\n", x[14], x[15], x[16]);
  80.     printf("       %Q, %Q, %Q\n", x[17], x[18], x[19]);
  81.     printf("       %Q, %Q, %Q\n", x[20], x[21], x[22]);
  82.     printf("       %Q, %Q, %Q\n", x[23], x[24], x[25]);
  83.     messy_stack_trace(&x[5]);
  84. }
  85.  
  86. /*
  87.  * Interrupt and exception dispatching.
  88.  */
  89.  
  90. static iroutine ivt[IVT_ITEMS];
  91.  
  92. void (* disable_irqs_function)(__u16 irqmask) = NULL;
  93. void (* enable_irqs_function)(__u16 irqmask) = NULL;
  94. void (* eoi_function)(void) = NULL;
  95.  
  96. iroutine trap_register(__u8 n, iroutine f)
  97. {
  98.     ASSERT(n < IVT_ITEMS);
  99.    
  100.     iroutine old;
  101.    
  102.     old = ivt[n];
  103.     ivt[n] = f;
  104.    
  105.     return old;
  106. }
  107.  
  108. /*
  109.  * Called directly from the assembler code.
  110.  * CPU is cpu_priority_high().
  111.  */
  112. void trap_dispatcher(__u8 n, __native stack[])
  113. {
  114.     ASSERT(n < IVT_ITEMS);
  115.    
  116.     ivt[n](n, stack);
  117. }
  118.  
  119. void null_interrupt(__u8 n, __native stack[])
  120. {
  121.     printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); \
  122.     printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
  123.     panic("unserviced interrupt\n");
  124. }
  125.  
  126. void gp_fault(__u8 n, __native stack[])
  127. {
  128.     print_info_errcode(n,stack);
  129.     panic("general protection fault\n");
  130. }
  131.  
  132. void ss_fault(__u8 n, __native stack[])
  133. {
  134.     print_info_errcode(n,stack);
  135.     panic("stack fault\n");
  136. }
  137.  
  138.  
  139. void nm_fault(__u8 n, __native stack[])
  140. {
  141. #ifdef FPU_LAZY    
  142.     scheduler_fpu_lazy_request();
  143. #else
  144.     panic("fpu fault");
  145. #endif
  146. }
  147.  
  148.  
  149.  
  150. void page_fault(__u8 n, __native stack[])
  151. {
  152.     print_info_errcode(n,stack);
  153.     printf("Page fault address: %Q\n", read_cr2());
  154.     panic("page fault\n");
  155. }
  156.  
  157. void syscall(__u8 n, __native stack[])
  158. {
  159.     printf("cpu%d: syscall\n", CPU->id);
  160.     thread_usleep(1000);
  161. }
  162.  
  163. void tlb_shootdown_ipi(__u8 n, __native stack[])
  164. {
  165.     trap_virtual_eoi();
  166.     tlb_shootdown_ipi_recv();
  167. }
  168.  
  169. void wakeup_ipi(__u8 n, __native stack[])
  170. {
  171.     trap_virtual_eoi();
  172. }
  173.  
  174. void trap_virtual_enable_irqs(__u16 irqmask)
  175. {
  176.     if (enable_irqs_function)
  177.         enable_irqs_function(irqmask);
  178.     else
  179.         panic("no enable_irqs_function\n");
  180. }
  181.  
  182. void trap_virtual_disable_irqs(__u16 irqmask)
  183. {
  184.     if (disable_irqs_function)
  185.         disable_irqs_function(irqmask);
  186.     else
  187.         panic("no disable_irqs_function\n");
  188. }
  189.  
  190. void trap_virtual_eoi(void)
  191. {
  192.     if (eoi_function)
  193.         eoi_function();
  194.     else
  195.         panic("no eoi_function\n");
  196.  
  197. }
  198.