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1 #ifndef CYGONCE_HAL_HAL_STUB_H |
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2 #define CYGONCE_HAL_HAL_STUB_H |
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3 |
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4 //============================================================================= |
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5 // |
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6 // hal_stub.h |
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7 // |
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8 // HAL header for GDB stub support. |
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9 // |
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10 //============================================================================= |
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11 //####COPYRIGHTBEGIN#### |
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12 // |
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13 // ------------------------------------------- |
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14 // The contents of this file are subject to the Cygnus eCos Public License |
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15 // Version 1.0 (the "License"); you may not use this file except in |
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16 // compliance with the License. You may obtain a copy of the License at |
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17 // http://sourceware.cygnus.com/ecos |
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18 // |
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19 // Software distributed under the License is distributed on an "AS IS" |
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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21 // License for the specific language governing rights and limitations under |
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22 // the License. |
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23 // |
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24 // The Original Code is eCos - Embedded Cygnus Operating System, released |
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25 // September 30, 1998. |
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26 // |
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27 // The Initial Developer of the Original Code is Cygnus. Portions created |
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28 // by Cygnus are Copyright (C) 1998, 1999 Cygnus Solutions. |
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29 // All Rights Reserved. |
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30 // ------------------------------------------- |
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31 // |
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32 //####COPYRIGHTEND#### |
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33 //============================================================================= |
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34 //#####DESCRIPTIONBEGIN#### |
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35 // |
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36 // Author(s): jskov |
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37 // Contributors:jskov |
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38 // Date: 1999-02-12 |
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39 // Purpose: Generic HAL stub header. |
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40 // Usage: #include <cyg/hal/hal_stub.h> |
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41 // |
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42 //####DESCRIPTIONEND#### |
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43 // |
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44 //============================================================================= |
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45 |
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46 #include <pkgconf/hal.h> |
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47 |
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48 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS |
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49 #define USE_GDBSTUB_PROTOTYPES 0 // avoid stub-tservice.h atm |
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50 #define __ECOS__ // use to mark eCos hacks |
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51 |
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52 #include <cyg/hal/basetype.h> // HAL_LABEL_NAME |
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53 #include <cyg/hal/hal_arch.h> // HAL header |
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54 #include <cyg/infra/cyg_type.h> |
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55 typedef cyg_uint32 uint32; |
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56 |
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57 #include <cyg/hal/plf_stub.h> |
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58 #include <cyg/hal/generic-stub.h> |
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59 |
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60 #ifdef __cplusplus |
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61 extern "C" { |
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62 #endif |
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63 |
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64 //----------------------------------------------------------------------------- |
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65 // Definitions for generic-stub.c |
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66 |
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67 #define __set_mem_fault_trap(x) ({__mem_fault = 0; x(); __mem_fault;}) |
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68 |
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69 //---------------------------------------------------------------------------- |
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70 // Signal definitions to avoid 'signal.h'/ |
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71 #define SIGHUP 1 /* hangup */ |
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72 #define SIGINT 2 /* interrupt */ |
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73 #define SIGQUIT 3 /* quit */ |
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74 #define SIGILL 4 /* illegal instruction (not reset when caught) */ |
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75 #define SIGTRAP 5 /* trace trap (not reset when caught) */ |
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76 #define SIGIOT 6 /* IOT instruction */ |
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77 #define SIGABRT 6 /* used by abort, replace SIGIOT in the future */ |
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78 #define SIGEMT 7 /* EMT instruction */ |
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79 #define SIGFPE 8 /* floating point exception */ |
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80 #define SIGKILL 9 /* kill (cannot be caught or ignored) */ |
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81 #define SIGBUS 10 /* bus error */ |
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82 #define SIGSEGV 11 /* segmentation violation */ |
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83 #define SIGSYS 12 /* bad argument to system call */ |
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84 #define SIGPIPE 13 /* write on a pipe with no one to read it */ |
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85 #define SIGALRM 14 /* alarm clock */ |
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86 #define SIGTERM 15 /* software termination signal from kill */ |
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87 |
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88 //---------------------------------------------------------------------------- |
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89 // Thread support. This setting is used in thread-pkts.h |
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90 #ifdef CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT |
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91 #define DEBUG_THREADS 1 |
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92 #else |
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93 #define DEBUG_THREADS 0 |
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94 #endif |
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95 |
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96 // The function stub_copy_registers() is statically defined in |
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97 // thread-packets.c, but in eCos this external stub is defined as it |
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98 // is used in dbg_gdb.cxx. |
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99 externC void __stub_copy_registers(target_register_t *dest, |
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100 target_register_t *src); |
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101 |
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102 //---------------------------------------------------------------------------- |
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103 // Memory accessor functions. |
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104 #define TARGET_HAS_OWN_MEM_FUNCS |
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105 |
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106 //---------------------------------------------------------------------------- |
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107 // Target extras?! |
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108 extern int __process_target_query(char * pkt, char * out, int maxOut); |
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109 extern int __process_target_set(char * pkt, char * out, int maxout); |
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110 extern int __process_target_packet(char * pkt, char * out, int maxout); |
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111 |
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112 //--------------------------------------------------------------------------- |
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113 // Declarations to avoid compiler warnings. |
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114 |
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115 // Set the baud rate for the current serial port. |
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116 extern void __set_baud_rate (int baud); |
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117 |
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118 // Write C to the current serial port. |
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119 extern void putDebugChar (int c); |
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120 |
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121 // Read one character from the current serial port. |
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122 extern int getDebugChar (void); |
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123 |
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124 // Push CH back onto the debug stream. |
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125 extern void ungetDebugChar (int ch); |
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126 |
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127 // Reset the board. |
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128 extern void __reset (void); |
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129 |
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130 // Multi-bp support. |
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131 extern int __set_breakpoint (target_register_t addr); |
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132 extern int __remove_breakpoint (target_register_t addr); |
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133 |
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134 /* Install the standard set of trap handlers for the stub. */ |
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135 extern void __install_traps (void); |
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136 |
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137 /* Address in text section of a breakpoint instruction. */ |
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138 |
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139 extern void CYG_LABEL_NAME(breakinst) (void); |
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140 |
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141 /* The opcode for a breakpoint instruction. */ |
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142 |
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143 extern unsigned long __break_opcode (void); |
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144 |
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145 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT |
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146 extern void cyg_hal_gdb_interrupt (target_register_t pc); |
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147 extern int cyg_hal_gdb_remove_break (target_register_t pc); |
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148 #endif |
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149 |
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150 //---------------------------------------------------------------------------- |
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151 // eCos extensions to the stub |
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152 |
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153 extern void hal_output_gdb_string(target_register_t str, int string_len); |
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154 |
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155 extern target_register_t registers[]; // The current saved registers. |
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156 extern target_register_t * _registers ; |
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157 extern HAL_SavedRegisters *_hal_registers; |
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158 |
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159 extern int cyg_hal_gdb_break; |
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160 |
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161 //--------------------------------------------------------------------------- |
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162 // Local strcpy/strlen functions removes libc dependency. |
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163 static inline char *strcpy( char *s, const char *t) |
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164 { |
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165 char *r = s; |
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166 |
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167 while( *t ) *s++ = *t++; |
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168 |
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169 // Terminate the copied string. |
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170 *s = 0; |
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171 |
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172 return r; |
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173 } |
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174 |
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175 static inline int strlen( const char *s ) |
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176 { |
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177 int r = 0; |
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178 while( *s++ ) r++; |
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179 return r; |
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180 } |
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181 |
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182 //----------------------------------------------------------------------------- |
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183 // Repeat the cache definitions here to avoid too much hackery in |
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184 // generic-stub.h |
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185 typedef enum { |
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186 CACHE_NOOP, CACHE_ENABLE, CACHE_DISABLE, CACHE_FLUSH |
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187 } cache_control_t; |
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188 |
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189 /* Perform the specified operation on the instruction cache. |
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190 Returns 1 if the cache is enabled, 0 otherwise. */ |
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191 extern int __instruction_cache (cache_control_t request); |
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192 /* Perform the specified operation on the data cache. |
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193 Returns 1 if the cache is enabled, 0 otherwise. */ |
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194 extern int __data_cache (cache_control_t request); |
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195 |
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196 #ifdef __cplusplus |
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197 } // extern "C" |
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198 #endif |
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199 |
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200 #endif // ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS |
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201 |
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202 //----------------------------------------------------------------------------- |
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203 #endif // CYGONCE_HAL_HAL_STUB_H |
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204 // End of hal_stub.h |
