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/*  fatal.c
 *
 *  User-define fatal error handler.
 *
 *  Copyright (c) 1998, National Research Council of Canada
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  bspfatal.c,v 1.2 2002/05/01 23:09:09 joel Exp
 */
 
#include <bsp.h>
#include <fatal.h>
 
/*
 *  mystrcat
 *
 *  Can't rely on libc being operational. So we provide our own strcat-like
 *  function.
 *
 *  Input parameters:
 *    destination - string (buffer) to append to
 *    source - string to append to the end of destination
 *
 *  Output parameters:
 *    destination - source is appended to the end
 *
 *  Return values:
 *    Number of characters appended.
 */
static int mystrcat(
  char *destination,
  const char *source
)
{
  int i;
 
  for ( i = 0; ( *destination++ = *source++) != '\0'; i++ );
  return i;
}
 
 
/*
 *  bsp_fatal_error_occurred
 *
 *  Called when rtems_fatal_error_occurred() is called. Returns control to
 *  167Bug. The _Internal_error_Occurred() function has already saved the
 *  parameters in Internal_errors_What_happened. If the function returns,
 *  RTEMS will halt the CPU.
 *
 *  Make sure the CPU is
 *
 *  Input parameters:
 *    the_source  - what subsystem the error originated in
 *    is_internal - if the error was internally generated
 *    the_error   - fatal error status code
 *
 *  Output parameters:
 *    output to the 167Bug console
 *
 *  Return values: NONE.
 */
User_extensions_routine bsp_fatal_error_occurred(
  Internal_errors_Source  the_source,
  rtems_boolean           is_internal,
  rtems_unsigned32        the_error
)
{
  struct {
    char index;         /* First byte is number of chars in strbuf  */
    char strbuf[254];   /* In case count is bumped up by one by 167Bug */
  } my_p_str;
 
  my_p_str.index = 0;
  my_p_str.index += mystrcat(
      my_p_str.strbuf + my_p_str.index,
      "\r\nRTEMS Fatal Error Occurred:\r\n    the_source  = " );
 
  switch ( the_source ) {
    case INTERNAL_ERROR_CORE:
      my_p_str.index += mystrcat(
          my_p_str.strbuf + my_p_str.index,
          "INTERNAL_ERROR_CORE\r\n    is_internal = " );
      break;
 
    case INTERNAL_ERROR_RTEMS_API:
      my_p_str.index += mystrcat(
          my_p_str.strbuf + my_p_str.index,
          "INTERNAL_ERROR_RTEMS_API\r\n    is_internal = " );
      break;
 
    case INTERNAL_ERROR_POSIX_API:
      my_p_str.index += mystrcat(
          my_p_str.strbuf + my_p_str.index,
          "INTERNAL_ERROR_POSIX_API\r\n    is_internal = " );
      break;
 
    default:
      my_p_str.index += mystrcat(
          my_p_str.strbuf + my_p_str.index,
          "UNKNOWN\r\n    is_internal = " );
      break;
  }
 
  if ( is_internal )
    my_p_str.index += mystrcat(
        my_p_str.strbuf + my_p_str.index,
        "TRUE\r\n    the_error   = 0x|10,8|\r\n" );
  else
    my_p_str.index += mystrcat(
        my_p_str.strbuf + my_p_str.index,
        "FALSE\r\n    the_error   = 0x|10,8|\r\n" );
 
  lcsr->intr_ena = 0;               /* disable interrupts */
  m68k_set_vbr(0xFFE00000);         /* restore 167Bug vectors */
 
  asm volatile( "movel  %0, -(%%a7)\n\t"
                "pea    (%%a7)\n\t"
                "pea    (%1)\n\t"
                "trap   #15\n\t"         /* trap to 167Bug (.WRITDLN) */
                ".short 0x25\n\t"
                "trap   #15\n\t"
                ".short 0x63"
    :: "d" (the_error), "a" (&my_p_str) );
}

Line No.	Rev	Author	Line
1	1026	ivang	`/* fatal.c`
2			`*`
3			`* User-define fatal error handler.`
4			`*`
5			`* Copyright (c) 1998, National Research Council of Canada`
6			`*`
7			`* The license and distribution terms for this file may be`
8			`* found in the file LICENSE in this distribution or at`
9			`* http://www.OARcorp.com/rtems/license.html.`
10			`*`
11			`* bspfatal.c,v 1.2 2002/05/01 23:09:09 joel Exp`
12			`*/`
13
14			`#include <bsp.h>`
15			`#include <fatal.h>`
16
17			`/*`
18			`* mystrcat`
19			`*`
20			`* Can't rely on libc being operational. So we provide our own strcat-like`
21			`* function.`
22			`*`
23			`* Input parameters:`
24			`* destination - string (buffer) to append to`
25			`* source - string to append to the end of destination`
26			`*`
27			`* Output parameters:`
28			`* destination - source is appended to the end`
29			`*`
30			`* Return values:`
31			`* Number of characters appended.`
32			`*/`
33			`static int mystrcat(`
34			`char *destination,`
35			`const char *source`
36			`)`
37			`{`
38			`int i;`
39
40			`for ( i = 0; ( destination++ = source++) != '\0'; i++ );`
41			`return i;`
42			`}`
43
44
45			`/*`
46			`* bsp_fatal_error_occurred`
47			`*`
48			`* Called when rtems_fatal_error_occurred() is called. Returns control to`
49			`* 167Bug. The _Internal_error_Occurred() function has already saved the`
50			`* parameters in Internal_errors_What_happened. If the function returns,`
51			`* RTEMS will halt the CPU.`
52			`*`
53			`* Make sure the CPU is`
54			`*`
55			`* Input parameters:`
56			`* the_source - what subsystem the error originated in`
57			`* is_internal - if the error was internally generated`
58			`* the_error - fatal error status code`
59			`*`
60			`* Output parameters:`
61			`* output to the 167Bug console`
62			`*`
63			`* Return values: NONE.`
64			`*/`
65			`User_extensions_routine bsp_fatal_error_occurred(`
66			`Internal_errors_Source the_source,`
67			`rtems_boolean is_internal,`
68			`rtems_unsigned32 the_error`
69			`)`
70			`{`
71			`struct {`
72			`char index; /* First byte is number of chars in strbuf */`
73			`char strbuf[254]; /* In case count is bumped up by one by 167Bug */`
74			`} my_p_str;`
75
76			`my_p_str.index = 0;`
77			`my_p_str.index += mystrcat(`
78			`my_p_str.strbuf + my_p_str.index,`
79			`"\r\nRTEMS Fatal Error Occurred:\r\n the_source = " );`
80
81			`switch ( the_source ) {`
82			`case INTERNAL_ERROR_CORE:`
83			`my_p_str.index += mystrcat(`
84			`my_p_str.strbuf + my_p_str.index,`
85			`"INTERNAL_ERROR_CORE\r\n is_internal = " );`
86			`break;`
87
88			`case INTERNAL_ERROR_RTEMS_API:`
89			`my_p_str.index += mystrcat(`
90			`my_p_str.strbuf + my_p_str.index,`
91			`"INTERNAL_ERROR_RTEMS_API\r\n is_internal = " );`
92			`break;`
93
94			`case INTERNAL_ERROR_POSIX_API:`
95			`my_p_str.index += mystrcat(`
96			`my_p_str.strbuf + my_p_str.index,`
97			`"INTERNAL_ERROR_POSIX_API\r\n is_internal = " );`
98			`break;`
99
100			`default:`
101			`my_p_str.index += mystrcat(`
102			`my_p_str.strbuf + my_p_str.index,`
103			`"UNKNOWN\r\n is_internal = " );`
104			`break;`
105			`}`
106
107			`if ( is_internal )`
108			`my_p_str.index += mystrcat(`
109			`my_p_str.strbuf + my_p_str.index,`
110			`"TRUE\r\n the_error = 0x\|10,8\|\r\n" );`
111			`else`
112			`my_p_str.index += mystrcat(`
113			`my_p_str.strbuf + my_p_str.index,`
114			`"FALSE\r\n the_error = 0x\|10,8\|\r\n" );`
115
116			`lcsr->intr_ena = 0; /* disable interrupts */`
117			`m68k_set_vbr(0xFFE00000); /* restore 167Bug vectors */`
118
119			`asm volatile( "movel %0, -(%%a7)\n\t"`
120			`"pea (%%a7)\n\t"`
121			`"pea (%1)\n\t"`
122			`"trap #15\n\t" /* trap to 167Bug (.WRITDLN) */`
123			`".short 0x25\n\t"`
124			`"trap #15\n\t"`
125			`".short 0x63"`
126			`:: "d" (the_error), "a" (&my_p_str) );`
127			`}`

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[/] [or1k/] [trunk/] [rtems-20020807/] [c/] [src/] [lib/] [libbsp/] [m68k/] [mvme167/] [fatal/] [bspfatal.c] - Blame information for rev 1765