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annotate packages/cygmon/current/misc/bsp/dbg-threads-api.h @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents 435cced73e2f
children d2c90368aeef
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1 #ifndef __BSP_DBG_THREADS_API_H__
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2 #define __BSP_DBG_THREADS_API_H__
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3 //==========================================================================
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4 //
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5 // dbg-threads-api.h
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6 //
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7 // <DESCRIPTION>
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8 //
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9 //==========================================================================
208
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10 //####ECOSGPLCOPYRIGHTBEGIN####
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11 // -------------------------------------------
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12 // This file is part of eCos, the Embedded Configurable Operating System.
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13 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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14 //
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15 // eCos is free software; you can redistribute it and/or modify it under
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16 // the terms of the GNU General Public License as published by the Free
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17 // Software Foundation; either version 2 or (at your option) any later version.
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18 //
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19 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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20 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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21 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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22 // for more details.
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23 //
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24 // You should have received a copy of the GNU General Public License along
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25 // with eCos; if not, write to the Free Software Foundation, Inc.,
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26 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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27 //
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28 // As a special exception, if other files instantiate templates or use macros
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29 // or inline functions from this file, or you compile this file and link it
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30 // with other works to produce a work based on this file, this file does not
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31 // by itself cause the resulting work to be covered by the GNU General Public
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32 // License. However the source code for this file must still be made available
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33 // in accordance with section (3) of the GNU General Public License.
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34 //
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35 // This exception does not invalidate any other reasons why a work based on
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36 // this file might be covered by the GNU General Public License.
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37 //
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38 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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39 // at http://sources.redhat.com/ecos/ecos-license
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40 // -------------------------------------------
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41 //####ECOSGPLCOPYRIGHTEND####
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42 //==========================================================================
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43 //#####DESCRIPTIONBEGIN####
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44 //
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45 // Author(s):
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46 // Contributors: gthomas
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47 // Date: 1999-10-20
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48 // Purpose:
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49 // Description: These are the calls used to extract operating system
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50 // specific information used in supporting thread aware
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51 // debugging.
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52 // The Operating Environment being debugged needs to supply
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53 // these functions.
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54 //
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55 //####DESCRIPTIONEND####
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56 //
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57 //=========================================================================
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58
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59
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60 #define has_thread_void 0
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61 #define has_thread_current 1
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62 #define has_thread_registers 2
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63 #define has_thread_reg_change 4
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64 #define has_thread_list 8
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65 #define has_thread_info 16
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66
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67 typedef unsigned char threadref[8] ;
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68
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69 struct dbg_capabilities
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70 {
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71 unsigned long mask1;
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72 };
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73
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74 /* fill in the list of thread aware capabilities */
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75 extern int dbg_thread_capabilities(struct dbg_capabilities *cbp);
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76
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77
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78 /* Fill in the identifier of the current thread */
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79 /* return 1 if defined, 0 if not defined */
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80 extern int dbg_currthread(threadref *varparm);
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81
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82 /* get the first or next member of the list of known threads */
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83 extern int dbg_threadlist(int startflag,
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84 threadref *lastthreadid,
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85 threadref *next_thread);
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86
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87 /* return 1 if next_threadid has been filled in with a value */
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88 /* return 0 if there are none or no more */
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89
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90 /* The O.S can fill in the following information about a thread when queried.
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91 The structure of thise strings is determined by the O.S.
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92 It is display oriented, so figure out what the users need to see.
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93 Nulls are OK but GDB will fill some not so meaningful data.
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94 These pointers may be in the calles private structures, the info will
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95 get copied immediatly after the call to retreive it.
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96 */
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97 struct cygmon_thread_debug_info
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98 {
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99 threadref thread_id ;
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100 int context_exists ; /* To the point where examining its state,
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101 registers and stack makes sense to GDB */
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102 char * thread_display ; /* As shown in thread status window, name, state */
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103 char * unique_thread_name ; /* human readable identifier, window label */
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104 char * more_display ; /* more detailed info about thread.
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105 priority, queuedepth, state, stack usage, statistics */
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106 } ;
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107
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108
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109
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110
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111 extern int dbg_threadinfo(threadref *threadid,
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112 struct cygmon_thread_debug_info *info);
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113
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114 /* Return 1 if threadid is defined and info copied, 0 otherwise */
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115
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116 /* The O.S should fillin the array of registers using values from the
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117 saves context. The array MUST be in GDB register save order even if
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118 the saved context is different or smaller. Do not alter the values of
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119 registers which are NOT in the O.S. thread context. Their default values
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120 have already been assigned.
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121 */
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122
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123 extern int dbg_getthreadreg(threadref *osthreadid,
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124 int regcount, /* count of registers in the array */
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125 void * regval); /* fillin this array */
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126
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127
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128 /* The O.S. should scan through this list of registers which are in
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129 GDB order and the O.S. should replace the values of all registers
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130 which are defined in the saved context of thread or process identified
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131 by osthreadid. Return 0 if the threadis does not map to a known
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132 process or other error. Return 1 if the setting is successful. */
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133
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134 extern int dbg_setthreadreg(threadref *osthreadid,
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135 int regcount, /* number of registers */
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136 void *regval) ;
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137
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138
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139 extern int dbg_scheduler(threadref *thread_id, int lock, int mode);
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140
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141 /* --- EXCEPTION -
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142 The O.S. does not provide this function , it calls this to specify the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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143 location of the dbg_syscall vector
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144 */
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145 extern void patch_dbg_syscalls(void * vector);
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146
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147 #endif /* DBG_THREADS_API_INCLUDED */
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148 #endif // __BSP_DBG_THREADS_API_H__