Mercurial > flash_v2
annotate packages/hal/common/current/src/hal_stub.c @ 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 |
|---|---|
| date | Tue, 28 Mar 2000 14:10:45 +0000 |
| parents | c5536bad4c24 |
| children | c37d3a9e1b28 |
| rev | line source |
|---|---|
| 2 | 1 //============================================================================= |
| 2 // | |
| 3 // hal_stub.c | |
| 4 // | |
| 5 // Helper functions for stub, specific to eCos HAL | |
| 6 // | |
| 7 //============================================================================= | |
| 8 //####COPYRIGHTBEGIN#### | |
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9 // |
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10 // ------------------------------------------- |
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11 // The contents of this file are subject to the Red Hat eCos Public License |
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12 // Version 1.1 (the "License"); you may not use this file except in |
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13 // compliance with the License. You may obtain a copy of the License at |
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14 // http://www.redhat.com/ |
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15 // |
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16 // Software distributed under the License is distributed on an "AS IS" |
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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18 // License for the specific language governing rights and limitations under |
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19 // the License. |
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20 // |
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21 // The Original Code is eCos - Embedded Configurable Operating System, |
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22 // released September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Red Hat. |
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25 // Portions created by Red Hat are |
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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27 // All Rights Reserved. |
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28 // ------------------------------------------- |
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29 // |
| 2 | 30 //####COPYRIGHTEND#### |
| 31 //============================================================================= | |
| 32 //#####DESCRIPTIONBEGIN#### | |
| 33 // | |
| 34 // Author(s): jskov (based on powerpc/cogent hal_stub.c) | |
| 35 // Contributors:jskov | |
| 36 // Date: 1999-02-12 | |
| 37 // Purpose: Helper functions for stub, specific to eCos HAL | |
| 38 // Description: Parts of the GDB stub requirements are provided by | |
| 39 // the eCos HAL, rather than target and/or board specific | |
| 40 // code. | |
| 41 // | |
| 42 //####DESCRIPTIONEND#### | |
| 43 // | |
| 44 //============================================================================= | |
| 45 | |
| 46 #include <pkgconf/hal.h> | |
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47 #ifdef CYGPKG_CYGMON |
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48 #include <pkgconf/cygmon.h> |
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49 #endif |
| 2 | 50 |
| 51 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS | |
| 52 | |
| 53 #include <cyg/hal/hal_stub.h> // Our header | |
| 54 | |
| 55 #include <cyg/hal/hal_arch.h> // HAL_BREAKINST | |
| 56 #include <cyg/hal/hal_cache.h> // HAL_xCACHE_x | |
| 57 #include <cyg/hal/hal_intr.h> // interrupt disable/restore | |
| 58 | |
| 59 #ifdef CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT | |
| 60 #include <cyg/hal/dbg-threads-api.h> // dbg_currthread_id | |
| 61 #endif | |
| 62 | |
| 63 | |
| 64 //----------------------------------------------------------------------------- | |
| 65 // Extra eCos data. | |
| 66 | |
| 67 // Saved registers. | |
| 68 HAL_SavedRegisters *_hal_registers; | |
| 69 target_register_t registers[NUMREGS]; | |
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70 target_register_t alt_registers[NUMREGS] ; // Thread or saved process state |
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71 target_register_t * _registers = registers; // Pointer to current set of registers |
| 2 | 72 |
| 73 // Interrupt control. | |
| 74 static volatile __PFI __interruptible_control; | |
| 75 | |
| 76 //----------------------------------------------------------------------------- | |
| 77 // Register access | |
| 78 | |
| 79 // Return the currently-saved value corresponding to register REG of | |
| 80 // the exception context. | |
| 81 target_register_t | |
| 82 get_register (regnames_t reg) | |
| 83 { | |
| 84 return _registers[reg]; | |
| 85 } | |
| 86 | |
| 87 // Store VALUE in the register corresponding to WHICH in the exception | |
| 88 // context. | |
| 89 void | |
| 90 put_register (regnames_t which, target_register_t value) | |
| 91 { | |
| 92 _registers[which] = value; | |
| 93 } | |
| 94 | |
| 95 //----------------------------------------------------------------------------- | |
| 96 // Serial stuff | |
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97 #ifdef CYGPKG_CYGMON |
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98 extern void ecos_bsp_console_putc(char); |
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99 extern char ecos_bsp_console_getc(void); |
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100 #endif |
| 2 | 101 |
| 102 // Write C to the current serial port. | |
| 103 void | |
| 104 putDebugChar (int c) | |
| 105 { | |
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106 #ifdef CYGPKG_CYGMON |
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107 ecos_bsp_console_putc(c); |
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108 #else |
| 2 | 109 HAL_STUB_PLATFORM_PUT_CHAR(c); |
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110 #endif |
| 2 | 111 } |
| 112 | |
| 113 // Read one character from the current serial port. | |
| 114 int | |
| 115 getDebugChar (void) | |
| 116 { | |
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117 #ifdef CYGPKG_CYGMON |
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118 return ecos_bsp_console_getc(); |
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119 #else |
| 2 | 120 return HAL_STUB_PLATFORM_GET_CHAR(); |
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121 #endif |
| 2 | 122 } |
| 123 | |
| 124 // Set the baud rate for the current serial port. | |
| 125 void | |
| 126 __set_baud_rate (int baud) | |
| 127 { | |
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128 #ifdef CYGPKG_CYGMON |
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129 // FIXME! |
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130 #else |
| 2 | 131 HAL_STUB_PLATFORM_SET_BAUD_RATE(baud); |
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132 #endif |
| 2 | 133 } |
| 134 | |
| 135 //----------------------------------------------------------------------------- | |
| 136 // GDB interrupt (BREAK) support. | |
| 137 | |
| 138 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT | |
| 139 | |
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140 #ifndef CYGPKG_HAL_ARM |
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141 |
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142 #if (HAL_BREAKINST_SIZE == 1) |
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143 typedef cyg_uint8 t_inst; |
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144 #elif (HAL_BREAKINST_SIZE == 2) |
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145 typedef cyg_uint16 t_inst; |
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146 #elif (HAL_BREAKINST_SIZE == 4) |
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147 typedef cyg_uint32 t_inst; |
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148 #else |
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149 #error "Don't know how to handle that size" |
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150 #endif |
| 2 | 151 |
| 152 typedef struct | |
| 153 { | |
| 154 t_inst *targetAddr; | |
| 155 t_inst savedInstr; | |
| 156 } instrBuffer; | |
| 157 | |
| 158 static instrBuffer break_buffer; | |
| 159 | |
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160 volatile int cyg_hal_gdb_running_step = 0; |
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161 |
| 2 | 162 void |
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163 cyg_hal_gdb_place_break (target_register_t pc) |
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164 { |
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165 cyg_hal_gdb_interrupt( pc ); // Let's hope this becomes a drop-through: |
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166 } |
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167 |
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168 void |
| 2 | 169 cyg_hal_gdb_interrupt (target_register_t pc) |
| 170 { | |
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171 // Clear flag that we Continued instead of Stepping |
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172 cyg_hal_gdb_running_step = 0; |
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173 // and override existing break? So that a ^C takes effect... |
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174 if (NULL != break_buffer.targetAddr) |
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175 cyg_hal_gdb_remove_break( (target_register_t)break_buffer.targetAddr ); |
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176 |
| 2 | 177 if (NULL == break_buffer.targetAddr) { |
| 178 break_buffer.targetAddr = (t_inst*) pc; | |
| 179 break_buffer.savedInstr = *(t_inst*)pc; | |
| 180 *(t_inst*)pc = (t_inst)HAL_BREAKINST; | |
| 181 | |
| 182 __data_cache(CACHE_FLUSH); | |
| 183 __instruction_cache(CACHE_FLUSH); | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 int | |
| 188 cyg_hal_gdb_remove_break (target_register_t pc) | |
| 189 { | |
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190 if ( cyg_hal_gdb_running_step ) |
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191 return 0; |
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192 |
| 2 | 193 if ((t_inst*)pc == break_buffer.targetAddr) { |
| 194 *(t_inst*)pc = break_buffer.savedInstr; | |
| 195 break_buffer.targetAddr = NULL; | |
| 196 | |
| 197 __data_cache(CACHE_FLUSH); | |
| 198 __instruction_cache(CACHE_FLUSH); | |
| 199 return 1; | |
| 200 } | |
| 201 return 0; | |
| 202 } | |
| 203 | |
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204 int |
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205 cyg_hal_gdb_break_is_set (void) |
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206 { |
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207 if (NULL != break_buffer.targetAddr) { |
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208 return 1; |
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209 } |
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210 return 0; |
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211 } |
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212 |
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213 #endif // CYGPKG_HAL_ARM |
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214 |
| 2 | 215 #endif // CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT |
| 216 | |
| 217 // Use this function to disable serial interrupts whenever reply | |
| 218 // characters are expected from GDB. The reason we want to control | |
| 219 // whether the target can be interrupted or not is simply that GDB on | |
| 220 // the host will be sending acknowledge characters/commands while the | |
| 221 // stub is running - if serial interrupts were still active, the | |
| 222 // characters would never reach the (polling) getDebugChar. | |
| 223 static void | |
| 224 interruptible(int state) | |
| 225 { | |
| 226 static int __interrupts_suspended = 0; | |
| 227 | |
| 228 if (__interruptible_control) { | |
| 229 if (state) { | |
| 230 __interrupts_suspended--; | |
| 231 if (0 >= __interrupts_suspended) { | |
| 232 __interrupts_suspended = 0; | |
| 233 __interruptible_control(1); | |
| 234 } | |
| 235 } else { | |
| 236 __interrupts_suspended++; | |
| 237 if (1 == __interrupts_suspended) | |
| 238 __interruptible_control(0); | |
| 239 } | |
| 240 } | |
| 241 } | |
| 242 | |
| 243 //----------------------------------------------------------------------------- | |
| 244 // eCos stub entry and exit magic. | |
| 245 | |
| 246 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT | |
| 247 int cyg_hal_gdb_break; | |
| 248 #endif | |
| 249 | |
| 250 // Called at stub *entry* | |
| 251 static void | |
| 252 handle_exception_cleanup( void ) | |
| 253 { | |
| 254 interruptible(0); | |
| 255 | |
| 256 // Expand the HAL_SavedRegisters structure into the GDB register | |
| 257 // array format. | |
| 258 HAL_GET_GDB_REGISTERS(®isters[0], _hal_registers); | |
| 259 _registers = ®isters[0]; | |
| 260 | |
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261 #ifdef HAL_STUB_PLATFORM_STUBS_FIXUP |
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262 // Some architectures may need to fix the PC in case of a partial |
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263 // or fully executed trap instruction. GDB only takes correct action |
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264 // when the PC is pointing to the breakpoint instruction it set. |
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265 // |
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266 // Most architectures would leave PC pointing at the trap |
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267 // instruction itself though, and so do not need to do anything |
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268 // special. |
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269 HAL_STUB_PLATFORM_STUBS_FIXUP(); |
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270 #endif |
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271 |
| 2 | 272 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT |
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273 // If we continued instead of stepping, when there was a break set |
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274 // ie. we were stepping within a critical region, clear the break, and |
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275 // that flag. If we stopped for some other reason, this has no effect. |
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276 if ( cyg_hal_gdb_running_step ) { |
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277 cyg_hal_gdb_running_step = 0; |
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278 cyg_hal_gdb_remove_break(get_register (PC)); |
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279 } |
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280 |
| 2 | 281 // FIXME: (there may be a better way to do this) |
| 282 // If we hit a breakpoint set by the gdb interrupt stub, make it | |
| 283 // seem like an interrupt rather than having hit a breakpoint. | |
| 284 if (cyg_hal_gdb_remove_break(get_register (PC))) | |
| 285 cyg_hal_gdb_break = 1; | |
| 286 else | |
| 287 cyg_hal_gdb_break = 0; | |
| 288 #endif | |
| 289 } | |
| 290 | |
| 291 // Called at stub *exit* | |
| 292 static void | |
| 293 handle_exception_init( void ) | |
| 294 { | |
| 295 // Compact register array again. | |
| 296 HAL_SET_GDB_REGISTERS(_hal_registers, ®isters[0]); | |
| 297 | |
| 298 interruptible(1); | |
| 299 } | |
| 300 | |
| 301 | |
| 302 //----------------------------------------------------------------------------- | |
| 303 // Initialization. | |
| 304 | |
| 305 // Signal handler. | |
| 306 int | |
| 307 cyg_hal_process_signal (int signal) | |
| 308 { | |
| 309 // We don't care about the signal (atm). | |
| 310 return 0; | |
| 311 } | |
| 312 | |
| 313 // Install the standard set of trap handlers for the stub. | |
| 314 void | |
| 315 __install_traps (void) | |
| 316 { | |
| 317 // Set signal handling vector so we can treat 'C<signum>' as 'c'. | |
| 318 __process_signal_vec = &cyg_hal_process_signal; | |
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319 // Set exit vector to reset vector. This will allow automatic reset on |
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320 // some platforms. |
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321 __process_exit_vec = &__reset; |
| 2 | 322 |
| 323 __cleanup_vec = &handle_exception_cleanup; | |
| 324 __init_vec = &handle_exception_init; | |
| 325 | |
| 326 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT | |
| 327 // Control of GDB interrupts. | |
| 328 __interruptible_control = HAL_STUB_PLATFORM_INTERRUPTIBLE; | |
| 329 #endif | |
| 330 | |
| 331 // Nothing further to do, handle_exception will be called when an | |
| 332 // exception occurs. | |
| 333 } | |
| 334 | |
| 335 // Initialize the hardware. | |
| 336 void | |
| 337 initHardware (void) | |
| 338 { | |
| 339 static int initialized = 0; | |
| 340 | |
| 341 if (!initialized) { | |
| 342 initialized = 1; | |
| 343 | |
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344 #if !defined(CYGPKG_CYGMON) |
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345 #ifdef HAL_STUB_PLATFORM_INIT |
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346 // If the platform defines any initialization code, call it here. |
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347 HAL_STUB_PLATFORM_INIT(); |
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348 #endif |
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349 |
| 2 | 350 // Get serial port initialized. |
| 351 HAL_STUB_PLATFORM_INIT_SERIAL(); | |
| 352 | |
| 353 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT | |
| 354 // Get interrupt handler initialized. | |
| 355 HAL_STUB_PLATFORM_INIT_BREAK_IRQ(); | |
| 356 #endif | |
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357 #endif // CYGPKG_CYGMON |
| 2 | 358 } |
| 359 } | |
| 360 | |
| 361 // Reset the board. | |
| 362 void | |
| 363 __reset (void) | |
| 364 { | |
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365 #if !defined(CYGPKG_CYGMON) |
| 2 | 366 HAL_STUB_PLATFORM_RESET(); |
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367 #endif |
| 2 | 368 } |
| 369 | |
| 370 //----------------------------------------------------------------------------- | |
| 371 // Breakpoint support. | |
| 372 | |
| 373 #ifndef CYGPKG_HAL_ARM | |
| 374 // This function will generate a breakpoint exception. It is used at | |
| 375 // the beginning of a program to sync up with a debugger and can be | |
| 376 // used otherwise as a quick means to stop program execution and | |
| 377 // "break" into the debugger. | |
| 378 void | |
| 379 breakpoint() | |
| 380 { | |
| 381 HAL_BREAKPOINT(_breakinst); | |
| 382 } | |
| 383 | |
| 384 // This function returns the opcode for a 'trap' instruction. | |
| 385 unsigned long | |
| 386 __break_opcode () | |
| 387 { | |
| 388 return HAL_BREAKINST; | |
| 389 } | |
| 390 #endif | |
| 391 | |
| 392 // FIXME: Add support for multiple breakpoints (libstub/bplist-dynamic.c) | |
| 393 int __set_breakpoint (target_register_t addr) { return 0; } | |
| 394 int __remove_breakpoint (target_register_t addr) { return 0; } | |
| 395 | |
| 396 //----------------------------------------------------------------------------- | |
| 397 // Write the 'T' packet in BUFFER. SIGVAL is the signal the program received. | |
| 398 void | |
| 399 __build_t_packet (int sigval, char *buf) | |
| 400 { | |
| 401 target_register_t addr; | |
| 402 char *ptr = buf; | |
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403 target_register_t sp; |
| 2 | 404 |
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405 sp = (target_register_t) get_register (SP); |
| 2 | 406 |
| 407 *ptr++ = 'T'; | |
| 408 *ptr++ = __tohex (sigval >> 4); | |
| 409 *ptr++ = __tohex (sigval); | |
| 410 | |
| 411 #ifdef CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT | |
| 412 // Include thread ID if thread manipulation is required. | |
| 413 { | |
| 414 int id; | |
| 415 | |
| 416 *ptr++ = 't'; | |
| 417 *ptr++ = 'h'; | |
| 418 *ptr++ = 'r'; | |
| 419 *ptr++ = 'e'; | |
| 420 *ptr++ = 'a'; | |
| 421 *ptr++ = 'd'; | |
| 422 *ptr++ = ':'; | |
| 423 | |
| 424 #if (CYG_BYTEORDER == CYG_MSBFIRST) | |
| 425 id = dbg_currthread_id (); | |
| 426 #else | |
| 427 // FIXME: Temporary workaround for PR 18903. Thread ID must be | |
| 428 // big-endian in the T packet. | |
| 429 { | |
| 430 unsigned char* bep = (unsigned char*)&id; | |
| 431 int be_id; | |
| 432 | |
| 433 be_id = dbg_currthread_id (); | |
| 434 *bep++ = (be_id >> 24) & 0xff ; | |
| 435 *bep++ = (be_id >> 16) & 0xff ; | |
| 436 *bep++ = (be_id >> 8) & 0xff ; | |
| 437 *bep++ = (be_id & 0xff) ; | |
| 438 } | |
| 439 #endif | |
| 440 ptr = __mem2hex((char *)&id, ptr, sizeof(id), 0); | |
| 441 *ptr++ = ';'; | |
| 442 } | |
| 443 #endif | |
| 444 | |
| 445 *ptr++ = __tohex (PC >> 4); | |
| 446 *ptr++ = __tohex (PC); | |
| 447 *ptr++ = ':'; | |
| 448 addr = get_register (PC); | |
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449 ptr = __mem2hex((char *)&addr, ptr, REGSIZE(PC), 0); |
| 2 | 450 *ptr++ = ';'; |
| 451 | |
| 452 *ptr++ = __tohex (SP >> 4); | |
| 453 *ptr++ = __tohex (SP); | |
| 454 *ptr++ = ':'; | |
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455 ptr = __mem2hex((char *)&sp, ptr, REGSIZE(SP), 0); |
| 2 | 456 *ptr++ = ';'; |
| 457 | |
| 458 *ptr++ = 0; | |
| 459 } | |
| 460 | |
| 461 | |
| 462 //----------------------------------------------------------------------------- | |
| 463 // Cache functions. | |
| 464 | |
| 465 // Perform the specified operation on the instruction cache. | |
| 466 // Returns 1 if the cache is enabled, 0 otherwise. | |
| 467 int | |
| 468 __instruction_cache (cache_control_t request) | |
| 469 { | |
| 470 int state = 1; | |
| 471 | |
| 472 switch (request) { | |
| 473 case CACHE_ENABLE: | |
| 474 HAL_ICACHE_ENABLE(); | |
| 475 break; | |
| 476 case CACHE_DISABLE: | |
| 477 HAL_ICACHE_DISABLE(); | |
| 478 state = 0; | |
| 479 break; | |
| 480 case CACHE_FLUSH: | |
| 481 HAL_ICACHE_SYNC(); | |
| 482 break; | |
| 483 case CACHE_NOOP: | |
| 484 /* fall through */ | |
| 485 default: | |
| 486 break; | |
| 487 } | |
| 488 | |
| 489 #ifdef HAL_ICACHE_IS_ENABLED | |
| 490 HAL_ICACHE_IS_ENABLED(state); | |
| 491 #endif | |
| 492 | |
| 493 return state; | |
| 494 } | |
| 495 | |
| 496 // Perform the specified operation on the data cache. | |
| 497 // Returns 1 if the cache is enabled, 0 otherwise. | |
| 498 int | |
| 499 __data_cache (cache_control_t request) | |
| 500 { | |
| 501 int state = 1; | |
| 502 | |
| 503 switch (request) { | |
| 504 case CACHE_ENABLE: | |
| 505 HAL_DCACHE_ENABLE(); | |
| 506 break; | |
| 507 case CACHE_DISABLE: | |
| 508 HAL_DCACHE_DISABLE(); | |
| 509 state = 0; | |
| 510 break; | |
| 511 case CACHE_FLUSH: | |
| 512 HAL_DCACHE_SYNC(); | |
| 513 break; | |
| 514 case CACHE_NOOP: | |
| 515 /* fall through */ | |
| 516 default: | |
| 517 break; | |
| 518 } | |
| 519 #ifdef HAL_DCACHE_IS_ENABLED | |
| 520 HAL_DCACHE_IS_ENABLED(state); | |
| 521 #endif | |
| 522 | |
| 523 return state; | |
| 524 } | |
| 525 | |
| 526 //----------------------------------------------------------------------------- | |
| 527 // Memory accessor functions. | |
| 528 | |
| 529 void *__mem_fault_handler = (void *)0; | |
| 530 | |
| 531 /* These are the "arguments" to __do_read_mem and __do_write_mem, | |
| 532 which are passed as globals to avoid squeezing them thru | |
| 533 __set_mem_fault_trap. */ | |
| 534 | |
| 535 static volatile target_register_t memCount; | |
| 536 | |
| 537 static void | |
| 538 __do_copy_mem (unsigned char* src, unsigned char* dst) | |
| 539 { | |
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540 unsigned long *long_dst; |
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541 unsigned long *long_src; |
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542 unsigned short *short_dst; |
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543 unsigned short *short_src; |
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544 |
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545 __mem_fault = 1; /* Defaults to 'fail'. Is cleared */ |
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546 /* when the copy loop completes. */ |
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547 __mem_fault_handler = &&err; |
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548 |
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549 // See if it's safe to do multi-byte, aligned operations |
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550 while (memCount) { |
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551 if ((memCount >= sizeof(long)) && |
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552 (((target_register_t)dst & (sizeof(long)-1)) == 0) && |
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553 (((target_register_t)src & (sizeof(long)-1)) == 0)) { |
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554 |
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555 long_dst = (unsigned long *)dst; |
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556 long_src = (unsigned long *)src; |
| 2 | 557 |
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558 *long_dst++ = *long_src++; |
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559 memCount -= sizeof(long); |
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560 |
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561 dst = (unsigned char *)long_dst; |
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562 src = (unsigned char *)long_src; |
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563 } else if ((memCount >= sizeof(short)) && |
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564 (((target_register_t)dst & (sizeof(short)-1)) == 0) && |
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565 (((target_register_t)src & (sizeof(short)-1)) == 0)) { |
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566 |
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567 short_dst = (unsigned short *)dst; |
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568 short_src = (unsigned short *)src; |
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569 |
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570 *short_dst++ = *short_src++; |
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571 memCount -= sizeof(short); |
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572 |
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573 dst = (unsigned char *)short_dst; |
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574 src = (unsigned char *)short_src; |
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575 } else { |
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576 *dst++ = *src++; |
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577 memCount--; |
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578 } |
| 2 | 579 } |
| 580 | |
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581 __mem_fault = 0; |
| 2 | 582 |
| 583 err: | |
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584 __mem_fault_handler = (void *)0; |
| 2 | 585 } |
| 586 | |
| 587 /* | |
| 588 * __read_mem_safe: | |
| 589 * Get contents of target memory, abort on error. | |
| 590 */ | |
| 591 | |
| 592 int | |
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593 __read_mem_safe (void *dst, void *src, int count) |
| 2 | 594 { |
| 595 memCount = count; | |
| 596 __do_copy_mem((unsigned char*) src, (unsigned char*) dst); | |
| 597 return count - memCount; // return number of bytes successfully read | |
| 598 } | |
| 599 | |
| 600 /* | |
| 601 * __write_mem_safe: | |
| 602 * Set contents of target memory, abort on error. | |
| 603 */ | |
| 604 | |
| 605 int | |
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606 __write_mem_safe (void *src, void *dst, int count) |
| 2 | 607 { |
| 608 memCount = count; | |
| 609 __do_copy_mem((unsigned char*) src, (unsigned char*) dst); | |
| 610 return count - memCount; // return number of bytes successfully written | |
| 611 } | |
| 612 | |
| 613 //----------------------------------------------------------------------------- | |
| 614 // Target extras?! | |
| 615 int | |
| 616 __process_target_query(char * pkt, char * out, int maxOut) | |
| 617 { return 0 ; } | |
| 618 int | |
| 619 __process_target_set(char * pkt, char * out, int maxout) | |
| 620 { return 0 ; } | |
| 621 int | |
| 622 __process_target_packet(char * pkt, char * out, int maxout) | |
| 623 { return 0 ; } | |
| 624 | |
| 625 // GDB string output, making sure interrupts are disabled. | |
| 626 // This function gets used by some diag output functions. | |
| 627 void | |
| 628 hal_output_gdb_string(target_register_t str, int string_len) | |
| 629 { | |
| 630 unsigned long __state; | |
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631 HAL_DISABLE_INTERRUPTS(__state); |
| 2 | 632 __output_gdb_string(str, string_len); |
| 633 HAL_RESTORE_INTERRUPTS(__state); | |
| 634 } | |
| 635 | |
| 636 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS |