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1 //========================================================================== |
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2 // |
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3 // null.cxx |
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4 // |
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5 // Null trace and assert functions |
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6 // |
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7 //========================================================================== |
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8 //####COPYRIGHTBEGIN#### |
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9 // |
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10 // ------------------------------------------- |
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11 // The contents of this file are subject to the Cygnus eCos Public License |
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12 // Version 1.0 (the "License"); you may not use this file except in |
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13 // compliance with the License. You may obtain a copy of the License at |
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14 // http://sourceware.cygnus.com/ecos |
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15 // |
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16 // Software distributed under the License is distributed on an "AS IS" |
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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18 // License for the specific language governing rights and limitations under |
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19 // the License. |
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20 // |
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21 // The Original Code is eCos - Embedded Cygnus Operating System, released |
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22 // September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Cygnus. Portions created |
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25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. |
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26 // ------------------------------------------- |
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27 // |
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28 //####COPYRIGHTEND#### |
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29 //========================================================================== |
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30 //#####DESCRIPTIONBEGIN#### |
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31 // |
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32 // Author(s): nickg |
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33 // Contributors: nickg |
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34 // Date: 1997-09-15 |
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35 // Purpose: Trace and assert functions |
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36 // Description: The functions in this file are null implementations of the |
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37 // standard trace and assert functions. These can be used to |
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38 // eliminate all trace and assert messages without recompiling. |
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39 // |
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40 //####DESCRIPTIONEND#### |
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41 // |
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42 //========================================================================== |
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43 |
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44 #include <pkgconf/infra.h> |
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45 |
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46 #ifndef CYGDBG_USE_ASSERTS |
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47 // then you get an empty function regardless, so that other code can link: |
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48 // (for example libc assert() calls this whether or not eCos code has |
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49 // asserts enabled - of course if it does, assert() maps to the chosen |
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50 // implementation; if not, it's the same inner function to breakpoint.) |
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51 |
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52 #include <cyg/infra/cyg_type.h> // base types |
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53 #include <cyg/infra/cyg_trac.h> // tracing macros |
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54 #include <cyg/infra/cyg_ass.h> // assertion macros |
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55 |
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56 externC void |
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57 cyg_assert_fail( const char *psz_func, const char *psz_file, |
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58 cyg_uint32 linenum, const char *psz_msg ) |
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59 { |
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60 for(;;); |
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61 }; |
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62 #endif // not CYGDBG_USE_ASSERTS |
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63 |
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64 #ifdef CYGDBG_INFRA_DEBUG_TRACE_ASSERT_NULL |
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65 |
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66 #include <cyg/infra/cyg_type.h> // base types |
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67 #include <cyg/infra/cyg_trac.h> // tracing macros |
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68 #include <cyg/infra/cyg_ass.h> // assertion macros |
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69 |
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70 // ------------------------------------------------------------------------- |
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71 // Trace functions: |
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72 |
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73 #ifdef CYGDBG_USE_TRACING |
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74 |
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75 externC void |
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76 cyg_tracenomsg( char *psz_func, char *psz_file, cyg_uint32 linenum ) |
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77 {} |
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78 |
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79 // provide every other one of these as a space/caller bloat compromise. |
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80 |
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81 externC void |
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82 cyg_tracemsg( cyg_uint32 what, |
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83 char *psz_func, char *psz_file, cyg_uint32 linenum, |
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84 char *psz_msg ) |
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85 {} |
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86 |
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87 externC void |
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88 cyg_tracemsg2( cyg_uint32 what, |
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89 char *psz_func, char *psz_file, cyg_uint32 linenum, |
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90 char *psz_msg, |
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91 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1 ) |
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92 {} |
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93 externC void |
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94 cyg_tracemsg4( cyg_uint32 what, |
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95 char *psz_func, char *psz_file, cyg_uint32 linenum, |
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96 char *psz_msg, |
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97 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, |
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98 CYG_ADDRWORD arg2, CYG_ADDRWORD arg3 ) |
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99 {} |
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100 externC void |
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101 cyg_tracemsg6( cyg_uint32 what, |
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102 char *psz_func, char *psz_file, cyg_uint32 linenum, |
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103 char *psz_msg, |
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104 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, |
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105 CYG_ADDRWORD arg2, CYG_ADDRWORD arg3, |
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106 CYG_ADDRWORD arg4, CYG_ADDRWORD arg5 ) |
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107 {} |
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108 externC void |
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109 cyg_tracemsg8( cyg_uint32 what, |
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110 char *psz_func, char *psz_file, cyg_uint32 linenum, |
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111 char *psz_msg, |
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112 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, |
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113 CYG_ADDRWORD arg2, CYG_ADDRWORD arg3, |
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114 CYG_ADDRWORD arg4, CYG_ADDRWORD arg5, |
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115 CYG_ADDRWORD arg6, CYG_ADDRWORD arg7 ) |
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116 {} |
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117 |
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118 #endif // CYGDBG_USE_TRACING |
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119 |
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120 // ------------------------------------------------------------------------- |
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121 // Assert functions: |
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122 |
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123 #ifdef CYGDBG_USE_ASSERTS |
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124 |
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125 externC void |
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126 cyg_assert_fail( const char *psz_func, const char *psz_file, |
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127 cyg_uint32 linenum, const char *psz_msg ) |
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128 { |
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129 for(;;); |
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130 }; |
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131 |
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132 extern "C" |
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133 { |
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134 extern unsigned long CYG_LABEL_NAME(stext); |
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135 extern unsigned long CYG_LABEL_NAME(etext); |
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136 |
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137 unsigned long stext_addr = (unsigned long)&CYG_LABEL_NAME(stext); |
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138 unsigned long etext_addr = (unsigned long)&CYG_LABEL_NAME(etext); |
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139 }; |
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140 |
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141 externC cyg_bool cyg_check_data_ptr(void *ptr) |
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142 { |
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143 unsigned long p = (unsigned long)ptr; |
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144 |
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145 if( p == 0 ) return false; |
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146 |
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147 if( p > stext_addr && p < etext_addr ) return false; |
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148 |
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149 return true; |
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150 } |
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151 |
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152 externC cyg_bool cyg_check_func_ptr(void (*ptr)(void)) |
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153 { |
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154 unsigned long p = (unsigned long)ptr; |
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155 |
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156 if( p == 0 ) return false; |
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157 |
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158 if( p < stext_addr && p > etext_addr ) return false; |
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159 |
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160 return true; |
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161 } |
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162 |
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163 #endif // CYGDBG_USE_ASSERTS |
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164 |
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165 #endif // CYGDBG_INFRA_DEBUG_TRACE_ASSERT_NULL |
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166 |
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167 // ------------------------------------------------------------------------- |
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168 // EOF null.cxx |
