source: rtems/c/src/lib/libbsp/powerpc/motorola_powerpc/vectors/vectors_init.c @ fcee56c0

4.104.114.84.95
Last change on this file since fcee56c0 was fcee56c0, checked in by Joel Sherrill <joel.sherrill@…>, on 07/01/99 at 23:39:13

Patch from Eric Valette <valette@…> to clean up the
previous submission.

  • Property mode set to 100644
File size: 3.9 KB
Line 
1/*
2 * vectors_init.c Exception hanlding initialisation (and generic handler).
3 *
4 *  This include file describe the data structure and the functions implemented
5 *  by rtems to handle exceptions.
6 *
7 *  CopyRight (C) 1999 valette@crf.canon.fr
8 *
9 *  The license and distribution terms for this file may be
10 *  found in found in the file LICENSE in this distribution or at
11 *  http://www.OARcorp.com/rtems/license.html.
12 *
13 *  $Id$
14 */
15#include <bsp/vectors.h>
16#include <libcpu/raw_exception.h>
17
18static rtems_raw_except_global_settings exception_config;
19static rtems_raw_except_connect_data    exception_table[LAST_VALID_EXC + 1];
20
21void C_exception_handler(exception_frame* excPtr)
22{
23  int recoverable = 0;
24 
25  printk("exception handler called for exception %d\n", excPtr->_EXC_number);
26  printk("\t Next PC or Address of fault = %x\n", excPtr->EXC_SRR0);
27  printk("\t Saved MSR = %x\n", excPtr->EXC_SRR1);
28  printk("\t R0 = %x\n", excPtr->GPR0);
29  printk("\t R1 = %x\n", excPtr->GPR1);
30  printk("\t R2 = %x\n", excPtr->GPR2);
31  printk("\t R3 = %x\n", excPtr->GPR3);
32  printk("\t R4 = %x\n", excPtr->GPR4);
33  printk("\t R5 = %x\n", excPtr->GPR5);
34  printk("\t R6 = %x\n", excPtr->GPR6);
35  printk("\t R7 = %x\n", excPtr->GPR7);
36  printk("\t R8 = %x\n", excPtr->GPR8);
37  printk("\t R9 = %x\n", excPtr->GPR9);
38  printk("\t R10 = %x\n", excPtr->GPR10);
39  printk("\t R11 = %x\n", excPtr->GPR11);
40  printk("\t R12 = %x\n", excPtr->GPR12);
41  printk("\t R13 = %x\n", excPtr->GPR13);
42  printk("\t R14 = %x\n", excPtr->GPR14);
43  printk("\t R15 = %x\n", excPtr->GPR15);
44  printk("\t R16 = %x\n", excPtr->GPR16);
45  printk("\t R17 = %x\n", excPtr->GPR17);
46  printk("\t R18 = %x\n", excPtr->GPR18);
47  printk("\t R19 = %x\n", excPtr->GPR19);
48  printk("\t R20 = %x\n", excPtr->GPR20);
49  printk("\t R21 = %x\n", excPtr->GPR21);
50  printk("\t R22 = %x\n", excPtr->GPR22);
51  printk("\t R23 = %x\n", excPtr->GPR23);
52  printk("\t R24 = %x\n", excPtr->GPR24);
53  printk("\t R25 = %x\n", excPtr->GPR25);
54  printk("\t R26 = %x\n", excPtr->GPR26);
55  printk("\t R27 = %x\n", excPtr->GPR27);
56  printk("\t R28 = %x\n", excPtr->GPR28);
57  printk("\t R29 = %x\n", excPtr->GPR29);
58  printk("\t R30 = %x\n", excPtr->GPR30);
59  printk("\t R31 = %x\n", excPtr->GPR31);
60  printk("\t CR = %x\n", excPtr->EXC_CR);
61  printk("\t CTR = %x\n", excPtr->EXC_CTR);
62  printk("\t XER = %x\n", excPtr->EXC_XER);
63  printk("\t LR = %x\n", excPtr->EXC_LR);
64  printk("\t MSR = %x\n", excPtr->EXC_MSR);
65  if ( (excPtr->_EXC_number == ASM_DEC_VECTOR) ||
66       (excPtr->_EXC_number == ASM_SYS_VECTOR)
67     )
68       recoverable = 1;
69  if (!recoverable) BSP_panic("unrecoverable exception!!! Push reset button\n");
70}
71
72void nop_except_enable(const rtems_raw_except_connect_data* ptr)
73{
74}
75int except_always_enabled(const rtems_raw_except_connect_data* ptr)
76{
77  return 1;
78}
79
80void initialize_exceptions()
81{
82  int i;
83 
84  exception_config.exceptSize           = LAST_VALID_EXC + 1;
85  exception_config.rawExceptHdlTbl      = &exception_table[0];
86  exception_config.defaultRawEntry.exceptIndex  = 0;
87  exception_config.defaultRawEntry.hdl.vector   = 0;
88  exception_config.defaultRawEntry.hdl.raw_hdl  = default_exception_vector_code_prolog;
89  /*
90   * Note that next line the '&' before default_exception_vector_code_prolog_size
91   * is not a bug as it is defined a .set directly in asm...
92   */
93  exception_config.defaultRawEntry.hdl.raw_hdl_size = (unsigned) &default_exception_vector_code_prolog_size;
94  for (i=0; i <= exception_config.exceptSize; i++) {
95    if (!mpc750_vector_is_valid (i)) {
96      continue;
97    }
98    exception_table[i].exceptIndex      = i;
99    exception_table[i].hdl              = exception_config.defaultRawEntry.hdl;
100    exception_table[i].hdl.vector       = i;
101    exception_table[i].on               = nop_except_enable;
102    exception_table[i].off              = nop_except_enable;
103    exception_table[i].isOn             = except_always_enabled;
104  }
105  if (!mpc60x_init_exceptions(&exception_config)) {
106    BSP_panic("Exception handling initialization failed\n");
107  }
108  else {
109    printk("Exception handling initialization done\n");
110  }
111}
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