Mercurial > flash_v2
annotate host/infra/trace.cxx @ 76:435cced73e2f ecos-v1_3_1-release
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
| author | jlarmour |
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| date | Tue, 28 Mar 2000 14:10:45 +0000 |
| parents | |
| children | f58bc1b2c2bc |
| rev | line source |
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1 //{{{ Banner |
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2 |
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3 //============================================================================ |
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4 // |
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5 // trace.cxx |
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6 // |
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7 // Host side implementation of the infrastructure trace facilities. |
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8 // |
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9 //============================================================================ |
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10 //####COPYRIGHTBEGIN#### |
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11 // |
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12 // ---------------------------------------------------------------------------- |
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13 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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14 // |
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15 // This file is part of the eCos host tools. |
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16 // |
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17 // This program is free software; you can redistribute it and/or modify it |
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18 // under the terms of the GNU General Public License as published by the Free |
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19 // Software Foundation; either version 2 of the License, or (at your option) |
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20 // any later version. |
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21 // |
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22 // This program is distributed in the hope that it will be useful, but WITHOUT |
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23 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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24 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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25 // more details. |
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26 // |
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27 // You should have received a copy of the GNU General Public License along with |
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28 // this program; if not, write to the Free Software Foundation, Inc., |
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29 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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30 // |
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31 // ---------------------------------------------------------------------------- |
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32 // |
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33 //####COPYRIGHTEND#### |
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34 //============================================================================ |
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35 //#####DESCRIPTIONBEGIN#### |
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36 // |
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37 // Author(s): bartv |
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38 // Contact(s): bartv |
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39 // Date: 1998/12/07 |
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40 // Version: 0.01 |
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41 // Purpose: To provide a host-side implementation of the eCos tracing |
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42 // facilities. |
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43 // |
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44 //####DESCRIPTIONEND#### |
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45 //============================================================================ |
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46 |
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47 //}}} |
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48 //{{{ #include's |
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49 |
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50 // Make sure that the host-side extensions get prototyped |
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51 // as well. Note that the tracing code needs to interact |
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52 // with the assertion facilities to set up an appropriate |
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53 // callback. |
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54 #define CYG_DECLARE_HOST_ASSERTION_SUPPORT |
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55 #include "pkgconf/infra.h" |
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56 #include "cyg/infra/cyg_type.h" |
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57 #include "cyg/infra/cyg_ass.h" |
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58 |
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59 // Without this #define the tracing enums and prototypes are |
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60 // not visible. |
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61 #define CYGDBG_USE_TRACING |
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62 #include "cyg/infra/cyg_trac.h" |
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63 |
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64 // The standard C++ string class is used extensively |
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65 #include <string> |
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66 |
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67 // Add a few C headers |
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68 #include <cctype> |
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69 #include <cstring> |
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70 #include <cstdio> |
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71 |
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72 //}}} |
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73 |
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74 //{{{ Description |
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75 |
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76 // ------------------------------------------------------------------------- |
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77 // The tracing macros end up calling one of the following routines: |
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78 // |
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79 // void cyg_tracenomsg(cyg_uint32 what, char* fn, char* file, cyg_uint32 line) |
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80 // void cyg_tracemsg( ..., char* msg) |
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81 // void cyg_tracemsg2( ..., CYG_ADDRWORD arg0, CYG_ADDRWORD arg1 ) |
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82 // void cyg_tracemsg4( ..., CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, ... ) |
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83 // void cyg_tracemsg6( ..., CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, ... ) |
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84 // void cyg_tracemsg8( ..., CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, ... ) |
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85 // |
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86 // For the 2/4/6/8 variants the msg argument is essentially a printf() |
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87 // style format string. However the intention is that the implementation |
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88 // of the trace code can delay doing the formatting until the trace |
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89 // information is actually needed (with obvious consequences for |
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90 // generated strings). Such an implementation would significantly |
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91 // reduce the overheads associated with tracing, and is what is implemented |
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92 // here. |
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93 // |
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94 // CYG_ADDRWORD is likely to be either "int" or the platform-specific |
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95 // 64 bit data type: it should be big enough to hold either a pointer |
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96 // or any normal integral type. This causes problems on machines which |
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97 // have e.g. 32 bit int and 64 bit long: any 32 bit quantities will |
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98 // have been converted to 64 bit quantities in the calling code, and |
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99 // it is no longer possible to just pass the format string to sprintf(). |
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100 // Instead what amounts to a re-implementation of sprintf() is needed |
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101 // here. |
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102 // |
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103 // The basic implementation of this trace code is as follows: |
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104 // |
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105 // 1) a static array of data structures to hold the trace data. The |
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106 // size can be configured. There is a current index into this |
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107 // array. |
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108 // |
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109 // 2) the various trace functions simply update this array and the |
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110 // counter. |
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111 // |
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112 // 3) all of the trace functions also check a static to see whether |
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113 // or not it is necessary to install a trace handler. This cannot |
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114 // be done by means of a static object due to constructor priority |
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115 // ordering problems. |
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116 // |
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117 // 4) the callback function does all the hardware of the formatting |
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118 // etc. |
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119 |
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120 //}}} |
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121 //{{{ Types and statics |
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122 |
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123 // ---------------------------------------------------------------------------- |
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124 // A data structure rather than a class is used to hold the trace data. |
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125 // This guarantees that the array gets put in the bss section and is properly |
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126 // zeroed. A "valid" field in the structure can be checked when dumping the |
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127 // array. |
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128 |
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129 typedef struct trace_entry { |
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130 bool valid; |
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131 cyg_uint32 what; |
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132 cyg_uint32 line; |
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133 char* fn; |
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134 char* file; |
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135 char* msg; |
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136 CYG_ADDRWORD data[8]; |
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137 } trace_entry; |
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138 |
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139 #ifndef CYGNUM_INFRA_TRACE_VECTOR_SIZE |
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140 # define CYGNUM_INFRA_TRACE_VECTOR_SIZE 2048 |
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141 #endif |
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142 |
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143 static trace_entry tracevec[CYGNUM_INFRA_TRACE_VECTOR_SIZE]; |
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144 static volatile int trace_index = 0; |
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145 |
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146 // Forward declaration of the callback function, for convenience. |
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147 static void trace_callback(void (*)(const char*)); |
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148 |
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149 // Has the callback been installed yet? |
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150 static bool callback_installed = false; |
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151 |
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152 //}}} |
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153 //{{{ The trace functions themselves |
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154 |
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155 // ---------------------------------------------------------------------------- |
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156 // The functions that get called by the trace macros. Typically these work |
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157 // as follows: |
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158 // |
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159 // 1) read and increment the trace index. This makes tracing marginally usable |
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160 // in multi-threaded systems. |
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161 // |
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162 // 2) invalidate the entry that is about to be updated. Again this helps a bit |
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163 // with multi-threaded systems. |
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164 // |
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165 // 3) fill in all the fields as per the command-line arguments, zeroing |
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166 // unused fields. |
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167 // |
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168 // 4) set the valid flag to true, which means the contents can now be output. |
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169 // |
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170 // This is by no means sufficient to guarantee that a call to dump the trace |
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171 // vector in some other thread can work safely, but it may help a little bit. |
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172 |
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173 extern "C" void |
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174 cyg_tracenomsg(char* fn, char* file, cyg_uint32 line) |
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175 { |
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176 int i = trace_index; |
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177 tracevec[i].valid = false; |
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178 trace_index = (trace_index + 1) % CYGNUM_INFRA_TRACE_VECTOR_SIZE; |
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179 |
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180 tracevec[i].what = cyg_trace_trace; |
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181 tracevec[i].fn = fn; |
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182 tracevec[i].file = file; |
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183 tracevec[i].line = line; |
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184 tracevec[i].msg = 0; |
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185 tracevec[i].data[0] = 0; |
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186 tracevec[i].data[1] = 0; |
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187 tracevec[i].data[2] = 0; |
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188 tracevec[i].data[3] = 0; |
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189 tracevec[i].data[4] = 0; |
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190 tracevec[i].data[5] = 0; |
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191 tracevec[i].data[6] = 0; |
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192 tracevec[i].data[7] = 0; |
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193 tracevec[i].valid = true; |
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194 |
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195 if (!callback_installed) { |
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196 cyg_assert_install_failure_callback("Trace", &trace_callback); |
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197 callback_installed = true; |
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198 } |
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199 } |
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200 |
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201 extern "C" void |
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202 cyg_tracemsg(cyg_uint32 what, char* fn, char* file, cyg_uint32 line, char* msg) |
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203 { |
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204 int i = trace_index; |
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205 tracevec[i].valid = false; |
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206 trace_index = (trace_index + 1) % CYGNUM_INFRA_TRACE_VECTOR_SIZE; |
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207 |
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208 tracevec[i].what = what; |
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209 tracevec[i].fn = fn; |
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210 tracevec[i].file = file; |
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211 tracevec[i].line = line; |
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212 tracevec[i].msg = msg; |
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213 tracevec[i].data[0] = 0; |
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214 tracevec[i].data[1] = 0; |
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215 tracevec[i].data[2] = 0; |
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216 tracevec[i].data[3] = 0; |
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217 tracevec[i].data[4] = 0; |
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218 tracevec[i].data[5] = 0; |
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219 tracevec[i].data[6] = 0; |
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220 tracevec[i].data[7] = 0; |
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221 tracevec[i].valid = true; |
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222 |
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223 if (!callback_installed) { |
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224 cyg_assert_install_failure_callback("Trace", &trace_callback); |
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225 callback_installed = true; |
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226 } |
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227 } |
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228 |
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229 extern "C" void |
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230 cyg_tracemsg2(cyg_uint32 what, char *fn, char* file, cyg_uint32 line, char *msg, |
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231 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1) |
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232 { |
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233 int i = trace_index; |
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234 tracevec[i].valid = false; |
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235 trace_index = (trace_index + 1) % CYGNUM_INFRA_TRACE_VECTOR_SIZE; |
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236 |
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237 tracevec[i].what = what; |
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238 tracevec[i].fn = fn; |
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239 tracevec[i].file = file; |
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240 tracevec[i].line = line; |
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241 tracevec[i].msg = msg; |
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242 tracevec[i].data[0] = arg0; |
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243 tracevec[i].data[1] = arg1; |
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244 tracevec[i].data[2] = 0; |
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245 tracevec[i].data[3] = 0; |
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246 tracevec[i].data[4] = 0; |
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247 tracevec[i].data[5] = 0; |
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248 tracevec[i].data[6] = 0; |
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249 tracevec[i].data[7] = 0; |
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250 tracevec[i].valid = true; |
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251 |
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252 if (!callback_installed) { |
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253 cyg_assert_install_failure_callback("Trace", &trace_callback); |
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254 callback_installed = true; |
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255 } |
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256 } |
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257 |
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258 extern "C" void |
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259 cyg_tracemsg4(cyg_uint32 what, char *fn, char* file, cyg_uint32 line, char *msg, |
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260 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, |
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261 CYG_ADDRWORD arg2, CYG_ADDRWORD arg3) |
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262 { |
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263 int i = trace_index; |
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264 tracevec[i].valid = false; |
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265 trace_index = (trace_index + 1) % CYGNUM_INFRA_TRACE_VECTOR_SIZE; |
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266 |
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267 tracevec[i].what = what; |
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268 tracevec[i].fn = fn; |
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269 tracevec[i].file = file; |
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270 tracevec[i].line = line; |
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271 tracevec[i].msg = msg; |
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272 tracevec[i].data[0] = arg0; |
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273 tracevec[i].data[1] = arg1; |
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274 tracevec[i].data[2] = arg2; |
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275 tracevec[i].data[3] = arg3; |
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276 tracevec[i].data[4] = 0; |
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277 tracevec[i].data[5] = 0; |
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278 tracevec[i].data[6] = 0; |
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279 tracevec[i].data[7] = 0; |
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280 tracevec[i].valid = true; |
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281 |
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282 if (!callback_installed) { |
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283 cyg_assert_install_failure_callback("Trace", &trace_callback); |
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284 callback_installed = true; |
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285 } |
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286 } |
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287 |
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288 extern "C" void |
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289 cyg_tracemsg6(cyg_uint32 what, char *fn, char* file, cyg_uint32 line, char *msg, |
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290 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, |
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291 CYG_ADDRWORD arg2, CYG_ADDRWORD arg3, |
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292 CYG_ADDRWORD arg4, CYG_ADDRWORD arg5) |
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293 { |
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294 int i = trace_index; |
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295 tracevec[i].valid = false; |
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296 trace_index = (trace_index + 1) % CYGNUM_INFRA_TRACE_VECTOR_SIZE; |
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297 |
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298 tracevec[i].what = what; |
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299 tracevec[i].fn = fn; |
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300 tracevec[i].file = file; |
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301 tracevec[i].line = line; |
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302 tracevec[i].msg = msg; |
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303 tracevec[i].data[0] = arg0; |
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304 tracevec[i].data[1] = arg1; |
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305 tracevec[i].data[2] = arg2; |
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306 tracevec[i].data[3] = arg3; |
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307 tracevec[i].data[4] = arg4; |
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308 tracevec[i].data[5] = arg5; |
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309 tracevec[i].data[6] = 0; |
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310 tracevec[i].data[7] = 0; |
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311 tracevec[i].valid = true; |
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312 |
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313 if (!callback_installed) { |
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314 cyg_assert_install_failure_callback("Trace", &trace_callback); |
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315 callback_installed = true; |
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316 } |
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317 } |
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318 |
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319 extern "C" void |
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320 cyg_tracemsg8(cyg_uint32 what, char *fn, char* file, cyg_uint32 line, char *msg, |
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321 CYG_ADDRWORD arg0, CYG_ADDRWORD arg1, |
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322 CYG_ADDRWORD arg2, CYG_ADDRWORD arg3, |
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323 CYG_ADDRWORD arg4, CYG_ADDRWORD arg5, |
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324 CYG_ADDRWORD arg6, CYG_ADDRWORD arg7) |
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325 { |
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326 int i = trace_index; |
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327 tracevec[i].valid = false; |
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328 trace_index = (trace_index + 1) % CYGNUM_INFRA_TRACE_VECTOR_SIZE; |
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329 |
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330 tracevec[i].what = what; |
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331 tracevec[i].fn = fn; |
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332 tracevec[i].file = file; |
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333 tracevec[i].line = line; |
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334 tracevec[i].msg = msg; |
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335 tracevec[i].data[0] = arg0; |
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336 tracevec[i].data[1] = arg1; |
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337 tracevec[i].data[2] = arg2; |
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338 tracevec[i].data[3] = arg3; |
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339 tracevec[i].data[4] = arg4; |
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340 tracevec[i].data[5] = arg5; |
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341 tracevec[i].data[6] = arg6; |
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342 tracevec[i].data[7] = arg7; |
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343 tracevec[i].valid = true; |
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344 |
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345 if (!callback_installed) { |
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346 cyg_assert_install_failure_callback("Trace", &trace_callback); |
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347 callback_installed = true; |
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348 } |
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349 } |
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350 |
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351 //}}} |
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352 //{{{ Output callback |
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353 |
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354 // ---------------------------------------------------------------------------- |
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355 // Dumping the output. The assertion code will invoke a single callback |
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356 // function, cyg_trace_dummy::trace_callback(), with a function pointer |
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357 // that can be used for the actual output. |
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358 // |
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359 // The trace_callback() function loops through the various entries in the |
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360 // vector, ignoring invalid ones, and invoking output_entry() for the |
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361 // valid ones. |
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362 // |
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363 // There are a number of utility routines: |
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364 // |
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365 // trim_file() is used to take a full pathname and return just the |
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366 // final part of it as a C++ string. There is an upper bound on the |
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367 // length of this string. |
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368 // |
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369 // trim_linenum() formats the linenumber sensibly. |
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370 // |
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371 // trim_function() is used to parse a __PRETTY_FUNCTION__ value |
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372 // and produce something more manageable. |
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373 // |
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374 // parse_msg() is used to construct the full trace message. |
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375 // Because of possible 32/64 bit confusion it is not possible |
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376 // to just use sprintf() for this. |
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377 |
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378 static std::string |
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379 trim_file(char* file) |
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380 { |
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381 // If the output is to look reasonable then the result should be a |
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382 // fixed length. 20 characters is reasonable for now. |
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383 const int max_filename_len = 20; |
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384 |
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385 if (0 == file) { |
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386 return std::string(max_filename_len, ' '); |
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387 } |
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388 |
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389 // Move to the end of the string, and then back again until |
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390 // a directory separator is found. Given the number of levels |
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391 // in a typical eCos directory hierarchy it is probably not |
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392 // worthwhile outputting any of that information. |
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393 char * pEnd = file + strlen(file); |
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394 while ((pEnd > file) && ('/' != *pEnd) && ('\\' != *pEnd)) { |
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395 pEnd--; |
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396 } |
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397 if (pEnd != file) |
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398 pEnd++; |
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399 |
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400 std::string result = ""; |
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401 int i = 0; |
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402 for ( ;(*pEnd != '\0') && (i < max_filename_len); i++, pEnd++) { |
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403 result += *pEnd; |
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404 } |
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405 for ( ; i < max_filename_len; i++) { |
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406 result += ' '; |
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407 } |
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408 |
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409 return result; |
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410 } |
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411 |
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412 // The linenumber output should be up to four digits, right-padded |
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413 // with spaces. sprintf() will do the trick nicely. |
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414 |
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415 static std::string |
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416 trim_linenum(cyg_uint32 line) |
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417 { |
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418 char buf[32]; |
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419 sprintf(buf, "%-4d", (int) line); |
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420 return buf; |
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421 } |
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422 |
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423 // Extract a function name. On the target side function names |
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424 // are usually obtained via __PRETTY_FUNCTION__, and the resulting |
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425 // output is a bit on the large side: return value, arguments, etc |
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426 // are all included. On the host side the function name is normally |
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427 // supplied explicitly and should not be trimmed at all. |
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428 // |
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429 // Padding is not appropriate since the function name is likely |
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430 // to be followed immediately by the argument list. No maximum |
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431 // length is imposed - arguably that is a bad idea. |
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432 static std::string |
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433 trim_function(char* fn) |
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434 { |
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435 if (0 == fn) { |
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|
436 return "<unknown>"; |
|
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437 } |
|
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|
438 |
|
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439 #if 1 |
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|
440 return fn; |
|
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441 #else |
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442 // This implements the target-side behaviour. |
|
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443 // |
|
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444 // First locate the opening bracket. The function name can |
|
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445 // be identified by walking backwards from that. |
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446 char *s; |
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447 for (s = fn; ('\0' != *s) && ('(' != *s); s++); |
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448 for ( ; (s > fn) && (*s != ' '); s--); |
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449 if ( s > fn) s++; |
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450 |
|
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451 std::string result = ""; |
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452 while ( ('\0' != *s) && ('(' != *s) ) |
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453 result += *s++; |
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454 |
|
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455 return result; |
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456 #endif |
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457 } |
|
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458 |
|
435cced73e2f
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459 // The trace format string contained a %s. It is necessary to check |
|
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460 // whether the argument is still valid, and return a suitable |
|
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461 // approximation to the actual data. |
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462 static std::string |
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463 trim_string(char * arg) |
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464 { |
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465 const int max_string_len = 20; |
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466 |
|
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467 std::string result = ""; |
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468 if (0 == arg) { |
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469 return result; |
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470 } |
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471 int i; |
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472 for ( i = 0; (i < max_string_len) && ('\0' != *arg) && isprint(*arg); i++, arg++) { |
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473 result += *arg; |
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474 } |
|
435cced73e2f
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475 return result; |
|
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476 } |
|
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|
477 |
|
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478 // ---------------------------------------------------------------------------- |
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479 // Parse a printf() style format string and do the appropriate expansions. |
|
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480 // Because of possible confusion between 32 and 64 bit integers it is not |
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481 // possible to use sprintf() itself. |
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482 // |
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483 // It is assumed that the format string is valid, as are most of the |
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484 // arguments. The possible exception is %s arguments where a little bit of |
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485 // checking happens first. |
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486 |
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487 static std::string |
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488 parse_msg(char* msg, trace_entry& entry) |
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489 { |
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490 if (0 == msg) { |
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491 return ""; |
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492 } |
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493 // Keep track of the number of arguments in the trace_entry |
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494 // that have been processed. |
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495 int args_index = 0; |
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496 |
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497 // A utility buffer for sprintf(), e.g. for integer-> string conversions. |
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498 char util_buf[64]; |
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499 |
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500 std::string result = ""; |
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501 for ( ; '\0' != *msg; msg++) { |
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|
502 |
|
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503 if ('%' != *msg) { |
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504 result += *msg; |
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505 continue; |
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506 } |
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|
507 |
|
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508 // We have a format string. Extract all of it. |
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509 std::string format = "%"; |
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510 msg++; |
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|
511 |
|
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512 // The first part of the format string may be one or more flags. |
|
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513 while ( ('-' == *msg) || ('+' == *msg) || (' ' == *msg) || |
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514 ('#' == *msg) || ('0' == *msg) ) { |
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515 format += *msg++; |
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516 } |
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|
517 |
|
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518 // Next comes the width. If this is an asterix it is necessary to |
|
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|
519 // substitute in an actual argument. |
|
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|
520 if ('*' == *msg) { |
|
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521 int width = (args_index < 8) ? (int) entry.data[args_index++] : 0; |
|
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|
522 sprintf(util_buf, "%d", width); |
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|
523 format += util_buf; |
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|
524 msg++; |
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|
525 } else { |
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|
526 // Otherwise the width should be one or more digits |
|
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|
527 while( isdigit(*msg) ) { |
|
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|
528 format += *msg++; |
|
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|
529 } |
|
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|
530 } |
|
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|
531 |
|
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|
532 // Look for a precision, again coping with an asterix. |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
533 if ('.' == *msg) { |
|
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|
534 format += *msg++; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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changeset
|
535 if ('*' == *msg) { |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
536 int precision = (args_index < 8) ? (int) entry.data[args_index++] : 0; |
|
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|
537 sprintf(util_buf, "%d", precision); |
|
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|
538 format += util_buf; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
539 msg++; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
540 } else { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
541 // The precision should be one or more digits, with an optional - |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
542 if ('-' == *msg) { |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff
changeset
|
543 format += *msg++; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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changeset
|
544 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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changeset
|
545 while (isdigit(*msg)) { |
|
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changeset
|
546 format += *msg++; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
547 } |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
548 } |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
549 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
550 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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changeset
|
551 // Now look for h,l and L. These have to be remembered. |
|
435cced73e2f
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parents:
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changeset
|
552 bool short_version = false; |
|
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changeset
|
553 bool long_version = false; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
554 if ('h' == *msg) { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
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|
555 format += *msg++; |
|
435cced73e2f
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parents:
diff
changeset
|
556 short_version = true; |
|
435cced73e2f
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|
557 } else if (('l' == *msg) || ('L' == *msg)) { |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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|
558 format += *msg++; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
559 long_version = true; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
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|
560 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
561 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
562 // The end of the format string has been reached. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
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|
563 int format_ch = *msg; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
564 format += *msg; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
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|
565 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
566 // If we have already formatted too many arguments, there is no point |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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|
567 // in trying to do the actual formatting. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
568 if ( 8 <= args_index ) { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
569 continue; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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|
570 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
571 CYG_ADDRWORD val = entry.data[args_index++]; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
572 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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changeset
|
573 switch( format_ch ) { |
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|
574 case '%' : |
|
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|
575 result += '%'; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
576 break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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changeset
|
577 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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changeset
|
578 case 'd' : |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
579 case 'i' : |
|
435cced73e2f
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jlarmour
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|
580 case 'o' : |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
581 case 'u' : |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
582 case 'x' : |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
583 case 'X' : |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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changeset
|
584 // "format" contains the appropriate format string. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
585 // Invoke sprintf() using util_buf, doing the |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
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|
586 // appropriate cast, and then append the output |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
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|
587 // of util_buf. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
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|
588 // |
|
435cced73e2f
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|
589 // This is not totally robust. If a ridiculous |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
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|
590 // precision has been specified then util_buf may |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
591 // overflow. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff
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|
592 if (long_version) { |
|
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jlarmour
parents:
diff
changeset
|
593 sprintf(util_buf, format.c_str(), (long) val); |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
594 } else { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
595 // The implicit cast rules mean that shorts do not |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
596 // require any special attention. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
597 sprintf(util_buf, format.c_str(), (int) val); |
|
435cced73e2f
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diff
changeset
|
598 } |
|
435cced73e2f
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parents:
diff
changeset
|
599 result += util_buf; |
|
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jlarmour
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diff
changeset
|
600 break; |
|
435cced73e2f
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jlarmour
parents:
diff
changeset
|
601 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
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|
602 case 'c' : |
|
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|
603 sprintf(util_buf, format.c_str(), (int) val); |
|
435cced73e2f
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parents:
diff
changeset
|
604 result += util_buf; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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changeset
|
605 break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff
changeset
|
606 |
|
435cced73e2f
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changeset
|
607 case 'p' : |
|
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diff
changeset
|
608 sprintf(util_buf, format.c_str(), (void *) val); |
|
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parents:
diff
changeset
|
609 result += util_buf; |
|
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|
610 break; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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|
611 |
|
435cced73e2f
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parents:
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changeset
|
612 case 's' : |
|
435cced73e2f
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parents:
diff
changeset
|
613 { |
|
435cced73e2f
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parents:
diff
changeset
|
614 std::string data = trim_string((char *) val); |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
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changeset
|
615 sprintf(util_buf, format.c_str(), data.c_str()); |
|
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|
616 result += util_buf; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff
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|
617 break; |
|
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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diff
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|
618 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
619 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
620 default : |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
621 // Any attempt to do floating point conversions would be |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
622 // rather tricky given the casts that have been applied. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
623 // There is no point in doing anything for unrecognised |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
624 // sequences. |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
625 break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
626 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
627 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
628 return result; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
629 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
630 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
631 // ---------------------------------------------------------------------------- |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
632 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
633 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
634 static void |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
635 output_entry(void (*pOutputFn)(const char*), trace_entry& entry) |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
636 { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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parents:
diff
changeset
|
637 std::string output = trim_file(entry.file) + " " + |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
638 trim_linenum(entry.line) + " " + |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
639 trim_function(entry.fn) + " "; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
640 if (0 != entry.msg) { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
641 |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
642 switch( entry.what) { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
643 case cyg_trace_trace : output += " '"; break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
644 case cyg_trace_enter : output += "{{"; break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
645 case cyg_trace_args : output += "(("; break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
646 case cyg_trace_return : output += "}}"; break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
647 default : output += " ?"; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
648 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
649 output += parse_msg(entry.msg, entry); |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
650 switch( entry.what) { |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
651 case cyg_trace_trace : output += "' "; break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
652 case cyg_trace_enter : break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
653 case cyg_trace_args : output += "))"; break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
654 case cyg_trace_return : break; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
655 default : output += "? "; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
656 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
657 } |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
658 output += "\n"; |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
|
659 (*pOutputFn)(output.c_str()); |
|
435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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660 } |
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661 |
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662 static void |
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663 trace_callback( void (*pOutputFn)(const char*)) |
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664 { |
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665 if ((trace_index < 0) || (trace_index >= CYGNUM_INFRA_TRACE_VECTOR_SIZE)) |
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666 return; |
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667 |
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668 // Start at the last entry and work back down to zero, skipping |
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669 // invalid ones. Then go to the top and work back to the current index. |
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670 int i; |
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671 for (i = trace_index - 1; i >= 0; i--) { |
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672 if (tracevec[i].valid) { |
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673 output_entry(pOutputFn, tracevec[i]); |
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674 } |
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675 } |
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676 for (i = (CYGNUM_INFRA_TRACE_VECTOR_SIZE - 1); i >= trace_index; i--) { |
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677 if (tracevec[i].valid) { |
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678 output_entry(pOutputFn, tracevec[i]); |
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679 } |
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680 } |
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681 } |
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682 |
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683 //}}} |
