arch/all-pc/kernel/kernel_debug.h

   1 /*
   2     Copyright � 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6 */
   7
   8 /*
   9  * This file contains useful redefinition of bug() macro which uses
  10  * kernel.resource's own debugging facilities. Include it if you
  11  * need bug() in your code.
  12  */
  13
  14 #ifndef __KERNEL_DEBUG_H_
  15 #define __KERNEL_DEBUG_H_
  16
  17 #include <aros/config.h>
  18 #include <aros/asmcall.h>
  19 #include <aros/libcall.h>
  20 #include <stdarg.h>
  21
  22 #include "kernel_intern.h"
  23
  24 #ifdef bug
  25 #undef bug
  26 #endif
  27
  28 int krnPutC(int chr, struct KernelBase *KernelBase);
  29 int krnBug(const char *format, va_list args, APTR kernelBase);
  30 void krnDisplayAlert(const char *text, struct KernelBase *KernelBase);
  31 void krnPanic(struct KernelBase *KernelBase, const char *fmt, ...);
  32
  33
  34 #define __cli()                 __asm__ __volatile__("cli": : :"memory")
  35 #define __sti()                 __asm__ __volatile__("sti": : :"memory")
  36
  37 #if defined(__AROSEXEC_SMP__)
  38 #include <aros/atomic.h>
  39 #include <asm/cpu.h>
  40 extern volatile ULONG   safedebug;
  41 #endif
  42
  43 static inline void _bug(APTR kernelBase, const char *format, ...)
  44 {
  45     va_list args;
  46 #if defined(__AROSEXEC_SMP__)
  47     unsigned long flags = 0;
  48     if (safedebug & 1)
  49     {
  50         __save_flags(flags);
  51         __cli();
  52     }
  53 #endif
  54     va_start(args, format);
  55
  56     /*
  57      * We use internal entry here. This is done because this function can be used
  58      * during early boot, while KernelBase is NULL. However it's still passed,
  59      * just in case.
  60      */
  61     krnBug(format, args, kernelBase);
  62
  63     va_end(args);
  64 #if defined(__AROSEXEC_SMP__)
  65     if (safedebug & 1)
  66     {
  67         __restore_flags(flags);
  68     }
  69 #endif
  70 }
  71
  72 #define bug(...) _bug(KernelBase, __VA_ARGS__)
  73 #define nbug(...) _bug(NULL, __VA_ARGS__)
  74 #endif