| 1 | /* Target operations for the remote server for GDB. |
| 2 | Copyright (C) 2002-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | Contributed by MontaVista Software. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #ifndef GDBSERVER_TARGET_H |
| 22 | #define GDBSERVER_TARGET_H |
| 23 | |
| 24 | #include <sys/types.h> /* for mode_t */ |
| 25 | #include "target/target.h" |
| 26 | #include "target/resume.h" |
| 27 | #include "target/wait.h" |
| 28 | #include "target/waitstatus.h" |
| 29 | #include "mem-break.h" |
| 30 | #include "gdbsupport/btrace-common.h" |
| 31 | #include <vector> |
| 32 | |
| 33 | struct emit_ops; |
| 34 | struct buffer; |
| 35 | struct process_info; |
| 36 | |
| 37 | /* This structure describes how to resume a particular thread (or all |
| 38 | threads) based on the client's request. If thread is -1, then this |
| 39 | entry applies to all threads. These are passed around as an |
| 40 | array. */ |
| 41 | |
| 42 | struct thread_resume |
| 43 | { |
| 44 | ptid_t thread; |
| 45 | |
| 46 | /* How to "resume". */ |
| 47 | enum resume_kind kind; |
| 48 | |
| 49 | /* If non-zero, send this signal when we resume, or to stop the |
| 50 | thread. If stopping a thread, and this is 0, the target should |
| 51 | stop the thread however it best decides to (e.g., SIGSTOP on |
| 52 | linux; SuspendThread on win32). This is a host signal value (not |
| 53 | enum gdb_signal). */ |
| 54 | int sig; |
| 55 | |
| 56 | /* Range to single step within. Valid only iff KIND is resume_step. |
| 57 | |
| 58 | Single-step once, and then continuing stepping as long as the |
| 59 | thread stops in this range. (If the range is empty |
| 60 | [STEP_RANGE_START == STEP_RANGE_END], then this is a single-step |
| 61 | request.) */ |
| 62 | CORE_ADDR step_range_start; /* Inclusive */ |
| 63 | CORE_ADDR step_range_end; /* Exclusive */ |
| 64 | }; |
| 65 | |
| 66 | /* GDBserver doesn't have a concept of strata like GDB, but we call |
| 67 | its target vector "process_stratum" anyway for the benefit of |
| 68 | shared code. */ |
| 69 | |
| 70 | class process_stratum_target |
| 71 | { |
| 72 | public: |
| 73 | |
| 74 | virtual ~process_stratum_target () = default; |
| 75 | |
| 76 | /* Start a new process. |
| 77 | |
| 78 | PROGRAM is a path to the program to execute. |
| 79 | PROGRAM_ARGS is a standard NULL-terminated array of arguments, |
| 80 | to be passed to the inferior as ``argv'' (along with PROGRAM). |
| 81 | |
| 82 | Returns the new PID on success, -1 on failure. Registers the new |
| 83 | process with the process list. */ |
| 84 | virtual int create_inferior (const char *program, |
| 85 | const std::vector<char *> &program_args) = 0; |
| 86 | |
| 87 | /* Do additional setup after a new process is created, including |
| 88 | exec-wrapper completion. */ |
| 89 | virtual void post_create_inferior (); |
| 90 | |
| 91 | /* Attach to a running process. |
| 92 | |
| 93 | PID is the process ID to attach to, specified by the user |
| 94 | or a higher layer. |
| 95 | |
| 96 | Returns -1 if attaching is unsupported, 0 on success, and calls |
| 97 | error() otherwise. */ |
| 98 | virtual int attach (unsigned long pid) = 0; |
| 99 | |
| 100 | /* Kill process PROC. Return -1 on failure, and 0 on success. */ |
| 101 | virtual int kill (process_info *proc) = 0; |
| 102 | |
| 103 | /* Detach from process PROC. Return -1 on failure, and 0 on |
| 104 | success. */ |
| 105 | virtual int detach (process_info *proc) = 0; |
| 106 | |
| 107 | /* The inferior process has died. Do what is right. */ |
| 108 | virtual void mourn (process_info *proc) = 0; |
| 109 | |
| 110 | /* Wait for process PID to exit. */ |
| 111 | virtual void join (int pid) = 0; |
| 112 | |
| 113 | /* Return true iff the thread with process ID PID is alive. */ |
| 114 | virtual bool thread_alive (ptid_t pid) = 0; |
| 115 | |
| 116 | /* Resume the inferior process. */ |
| 117 | virtual void resume (thread_resume *resume_info, size_t n) = 0; |
| 118 | |
| 119 | /* Wait for the inferior process or thread to change state. Store |
| 120 | status through argument pointer STATUS. |
| 121 | |
| 122 | PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to |
| 123 | wait for any thread of process pid to do something. Return ptid |
| 124 | of child, or -1 in case of error; store status through argument |
| 125 | pointer STATUS. OPTIONS is a bit set of options defined as |
| 126 | TARGET_W* above. If options contains TARGET_WNOHANG and there's |
| 127 | no child stop to report, return is |
| 128 | null_ptid/TARGET_WAITKIND_IGNORE. */ |
| 129 | virtual ptid_t wait (ptid_t ptid, target_waitstatus *status, |
| 130 | int options) = 0; |
| 131 | |
| 132 | /* Fetch registers from the inferior process. |
| 133 | |
| 134 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ |
| 135 | virtual void fetch_registers (regcache *regcache, int regno) = 0; |
| 136 | |
| 137 | /* Store registers to the inferior process. |
| 138 | |
| 139 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ |
| 140 | virtual void store_registers (regcache *regcache, int regno) = 0; |
| 141 | |
| 142 | /* Prepare to read or write memory from the inferior process. |
| 143 | Targets use this to do what is necessary to get the state of the |
| 144 | inferior such that it is possible to access memory. |
| 145 | |
| 146 | This should generally only be called from client facing routines, |
| 147 | such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint |
| 148 | insertion routine. |
| 149 | |
| 150 | Like `read_memory' and `write_memory' below, returns 0 on success |
| 151 | and errno on failure. */ |
| 152 | virtual int prepare_to_access_memory (); |
| 153 | |
| 154 | /* Undo the effects of prepare_to_access_memory. */ |
| 155 | virtual void done_accessing_memory (); |
| 156 | |
| 157 | /* Read memory from the inferior process. This should generally be |
| 158 | called through read_inferior_memory, which handles breakpoint shadowing. |
| 159 | |
| 160 | Read LEN bytes at MEMADDR into a buffer at MYADDR. |
| 161 | |
| 162 | Returns 0 on success and errno on failure. */ |
| 163 | virtual int read_memory (CORE_ADDR memaddr, unsigned char *myaddr, |
| 164 | int len) = 0; |
| 165 | |
| 166 | /* Write memory to the inferior process. This should generally be |
| 167 | called through target_write_memory, which handles breakpoint shadowing. |
| 168 | |
| 169 | Write LEN bytes from the buffer at MYADDR to MEMADDR. |
| 170 | |
| 171 | Returns 0 on success and errno on failure. */ |
| 172 | virtual int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, |
| 173 | int len) = 0; |
| 174 | |
| 175 | /* Query GDB for the values of any symbols we're interested in. |
| 176 | This function is called whenever we receive a "qSymbols::" |
| 177 | query, which corresponds to every time more symbols (might) |
| 178 | become available. */ |
| 179 | virtual void look_up_symbols (); |
| 180 | |
| 181 | /* Send an interrupt request to the inferior process, |
| 182 | however is appropriate. */ |
| 183 | virtual void request_interrupt () = 0; |
| 184 | |
| 185 | /* Return true if the read_auxv target op is supported. */ |
| 186 | virtual bool supports_read_auxv (); |
| 187 | |
| 188 | /* Read auxiliary vector data from the inferior process. |
| 189 | |
| 190 | Read LEN bytes at OFFSET into a buffer at MYADDR. */ |
| 191 | virtual int read_auxv (CORE_ADDR offset, unsigned char *myaddr, |
| 192 | unsigned int len); |
| 193 | |
| 194 | /* Returns true if GDB Z breakpoint type TYPE is supported, false |
| 195 | otherwise. The type is coded as follows: |
| 196 | '0' - software-breakpoint |
| 197 | '1' - hardware-breakpoint |
| 198 | '2' - write watchpoint |
| 199 | '3' - read watchpoint |
| 200 | '4' - access watchpoint |
| 201 | */ |
| 202 | virtual bool supports_z_point_type (char z_type); |
| 203 | |
| 204 | /* Insert and remove a break or watchpoint. |
| 205 | Returns 0 on success, -1 on failure and 1 on unsupported. */ |
| 206 | virtual int insert_point (enum raw_bkpt_type type, CORE_ADDR addr, |
| 207 | int size, raw_breakpoint *bp); |
| 208 | |
| 209 | virtual int remove_point (enum raw_bkpt_type type, CORE_ADDR addr, |
| 210 | int size, raw_breakpoint *bp); |
| 211 | |
| 212 | /* Returns true if the target stopped because it executed a software |
| 213 | breakpoint instruction, false otherwise. */ |
| 214 | virtual bool stopped_by_sw_breakpoint (); |
| 215 | |
| 216 | /* Returns true if the target knows whether a trap was caused by a |
| 217 | SW breakpoint triggering. */ |
| 218 | virtual bool supports_stopped_by_sw_breakpoint (); |
| 219 | |
| 220 | /* Returns true if the target stopped for a hardware breakpoint. */ |
| 221 | virtual bool stopped_by_hw_breakpoint (); |
| 222 | |
| 223 | /* Returns true if the target knows whether a trap was caused by a |
| 224 | HW breakpoint triggering. */ |
| 225 | virtual bool supports_stopped_by_hw_breakpoint (); |
| 226 | |
| 227 | /* Returns true if the target can do hardware single step. */ |
| 228 | virtual bool supports_hardware_single_step (); |
| 229 | |
| 230 | /* Returns true if target was stopped due to a watchpoint hit, false |
| 231 | otherwise. */ |
| 232 | virtual bool stopped_by_watchpoint (); |
| 233 | |
| 234 | /* Returns the address associated with the watchpoint that hit, if any; |
| 235 | returns 0 otherwise. */ |
| 236 | virtual CORE_ADDR stopped_data_address (); |
| 237 | |
| 238 | /* Return true if the read_offsets target op is supported. */ |
| 239 | virtual bool supports_read_offsets (); |
| 240 | |
| 241 | /* Reports the text, data offsets of the executable. This is |
| 242 | needed for uclinux where the executable is relocated during load |
| 243 | time. */ |
| 244 | virtual int read_offsets (CORE_ADDR *text, CORE_ADDR *data); |
| 245 | |
| 246 | /* Return true if the get_tls_address target op is supported. */ |
| 247 | virtual bool supports_get_tls_address (); |
| 248 | |
| 249 | /* Fetch the address associated with a specific thread local storage |
| 250 | area, determined by the specified THREAD, OFFSET, and LOAD_MODULE. |
| 251 | Stores it in *ADDRESS and returns zero on success; otherwise returns |
| 252 | an error code. A return value of -1 means this system does not |
| 253 | support the operation. */ |
| 254 | virtual int get_tls_address (thread_info *thread, CORE_ADDR offset, |
| 255 | CORE_ADDR load_module, CORE_ADDR *address); |
| 256 | |
| 257 | /* Fill BUF with an hostio error packet representing the last hostio |
| 258 | error. */ |
| 259 | virtual void hostio_last_error (char *buf); |
| 260 | |
| 261 | /* Return true if the qxfer_osdata target op is supported. */ |
| 262 | virtual bool supports_qxfer_osdata (); |
| 263 | |
| 264 | /* Read/Write OS data using qXfer packets. */ |
| 265 | virtual int qxfer_osdata (const char *annex, unsigned char *readbuf, |
| 266 | unsigned const char *writebuf, |
| 267 | CORE_ADDR offset, int len); |
| 268 | |
| 269 | /* Return true if the qxfer_siginfo target op is supported. */ |
| 270 | virtual bool supports_qxfer_siginfo (); |
| 271 | |
| 272 | /* Read/Write extra signal info. */ |
| 273 | virtual int qxfer_siginfo (const char *annex, unsigned char *readbuf, |
| 274 | unsigned const char *writebuf, |
| 275 | CORE_ADDR offset, int len); |
| 276 | |
| 277 | /* Return true if non-stop mode is supported. */ |
| 278 | virtual bool supports_non_stop (); |
| 279 | |
| 280 | /* Enables async target events. Returns the previous enable |
| 281 | state. */ |
| 282 | virtual bool async (bool enable); |
| 283 | |
| 284 | /* Switch to non-stop (ENABLE == true) or all-stop (ENABLE == false) |
| 285 | mode. Return 0 on success, -1 otherwise. */ |
| 286 | virtual int start_non_stop (bool enable); |
| 287 | |
| 288 | /* Returns true if the target supports multi-process debugging. */ |
| 289 | virtual bool supports_multi_process (); |
| 290 | |
| 291 | /* Returns true if fork events are supported. */ |
| 292 | virtual bool supports_fork_events (); |
| 293 | |
| 294 | /* Returns true if vfork events are supported. */ |
| 295 | virtual bool supports_vfork_events (); |
| 296 | |
| 297 | /* Returns true if exec events are supported. */ |
| 298 | virtual bool supports_exec_events (); |
| 299 | |
| 300 | /* Allows target to re-initialize connection-specific settings. */ |
| 301 | virtual void handle_new_gdb_connection (); |
| 302 | |
| 303 | /* The target-specific routine to process monitor command. |
| 304 | Returns 1 if handled, or 0 to perform default processing. */ |
| 305 | virtual int handle_monitor_command (char *mon); |
| 306 | |
| 307 | /* Returns the core given a thread, or -1 if not known. */ |
| 308 | virtual int core_of_thread (ptid_t ptid); |
| 309 | |
| 310 | /* Returns true if the read_loadmap target op is supported. */ |
| 311 | virtual bool supports_read_loadmap (); |
| 312 | |
| 313 | /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */ |
| 314 | virtual int read_loadmap (const char *annex, CORE_ADDR offset, |
| 315 | unsigned char *myaddr, unsigned int len); |
| 316 | |
| 317 | /* Target specific qSupported support. FEATURES is an array of |
| 318 | features with COUNT elements. */ |
| 319 | virtual void process_qsupported (char **features, int count); |
| 320 | |
| 321 | /* Return true if the target supports tracepoints, false otherwise. */ |
| 322 | virtual bool supports_tracepoints (); |
| 323 | |
| 324 | /* Read PC from REGCACHE. */ |
| 325 | virtual CORE_ADDR read_pc (regcache *regcache); |
| 326 | |
| 327 | /* Write PC to REGCACHE. */ |
| 328 | virtual void write_pc (regcache *regcache, CORE_ADDR pc); |
| 329 | |
| 330 | /* Return true if the thread_stopped op is supported. */ |
| 331 | virtual bool supports_thread_stopped (); |
| 332 | |
| 333 | /* Return true if THREAD is known to be stopped now. */ |
| 334 | virtual bool thread_stopped (thread_info *thread); |
| 335 | |
| 336 | /* Return true if the get_tib_address op is supported. */ |
| 337 | virtual bool supports_get_tib_address (); |
| 338 | |
| 339 | /* Read Thread Information Block address. */ |
| 340 | virtual int get_tib_address (ptid_t ptid, CORE_ADDR *address); |
| 341 | |
| 342 | /* Pause all threads. If FREEZE, arrange for any resume attempt to |
| 343 | be ignored until an unpause_all call unfreezes threads again. |
| 344 | There can be nested calls to pause_all, so a freeze counter |
| 345 | should be maintained. */ |
| 346 | virtual void pause_all (bool freeze); |
| 347 | |
| 348 | /* Unpause all threads. Threads that hadn't been resumed by the |
| 349 | client should be left stopped. Basically a pause/unpause call |
| 350 | pair should not end up resuming threads that were stopped before |
| 351 | the pause call. */ |
| 352 | virtual void unpause_all (bool unfreeze); |
| 353 | |
| 354 | /* Stabilize all threads. That is, force them out of jump pads. */ |
| 355 | virtual void stabilize_threads (); |
| 356 | |
| 357 | /* Return true if the install_fast_tracepoint_jump_pad op is |
| 358 | supported. */ |
| 359 | virtual bool supports_fast_tracepoints (); |
| 360 | |
| 361 | /* Install a fast tracepoint jump pad. TPOINT is the address of the |
| 362 | tracepoint internal object as used by the IPA agent. TPADDR is |
| 363 | the address of tracepoint. COLLECTOR is address of the function |
| 364 | the jump pad redirects to. LOCKADDR is the address of the jump |
| 365 | pad lock object. ORIG_SIZE is the size in bytes of the |
| 366 | instruction at TPADDR. JUMP_ENTRY points to the address of the |
| 367 | jump pad entry, and on return holds the address past the end of |
| 368 | the created jump pad. If a trampoline is created by the function, |
| 369 | then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of |
| 370 | the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a |
| 371 | buffer containing a copy of the instruction at TPADDR. |
| 372 | ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that |
| 373 | return the address range where the instruction at TPADDR was relocated |
| 374 | to. If an error occurs, the ERR may be used to pass on an error |
| 375 | message. */ |
| 376 | virtual int install_fast_tracepoint_jump_pad |
| 377 | (CORE_ADDR tpoint, CORE_ADDR tpaddr, CORE_ADDR collector, |
| 378 | CORE_ADDR lockaddr, ULONGEST orig_size, CORE_ADDR *jump_entry, |
| 379 | CORE_ADDR *trampoline, ULONGEST *trampoline_size, |
| 380 | unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size, |
| 381 | CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end, |
| 382 | char *err); |
| 383 | |
| 384 | /* Return the minimum length of an instruction that can be safely |
| 385 | overwritten for use as a fast tracepoint. */ |
| 386 | virtual int get_min_fast_tracepoint_insn_len (); |
| 387 | |
| 388 | /* Return the bytecode operations vector for the current inferior. |
| 389 | Returns nullptr if bytecode compilation is not supported. */ |
| 390 | virtual struct emit_ops *emit_ops (); |
| 391 | |
| 392 | /* Returns true if the target supports disabling randomization. */ |
| 393 | virtual bool supports_disable_randomization (); |
| 394 | |
| 395 | /* Return true if the qxfer_libraries_svr4 op is supported. */ |
| 396 | virtual bool supports_qxfer_libraries_svr4 (); |
| 397 | |
| 398 | /* Read solib info on SVR4 platforms. */ |
| 399 | virtual int qxfer_libraries_svr4 (const char *annex, |
| 400 | unsigned char *readbuf, |
| 401 | unsigned const char *writebuf, |
| 402 | CORE_ADDR offset, int len); |
| 403 | |
| 404 | /* Return true if target supports debugging agent. */ |
| 405 | virtual bool supports_agent (); |
| 406 | |
| 407 | /* Enable branch tracing for PTID based on CONF and allocate a branch trace |
| 408 | target information struct for reading and for disabling branch trace. */ |
| 409 | virtual btrace_target_info *enable_btrace (ptid_t ptid, |
| 410 | const btrace_config *conf); |
| 411 | |
| 412 | /* Disable branch tracing. |
| 413 | Returns zero on success, non-zero otherwise. */ |
| 414 | virtual int disable_btrace (btrace_target_info *tinfo); |
| 415 | |
| 416 | /* Read branch trace data into buffer. |
| 417 | Return 0 on success; print an error message into BUFFER and return -1, |
| 418 | otherwise. */ |
| 419 | virtual int read_btrace (btrace_target_info *tinfo, buffer *buf, |
| 420 | enum btrace_read_type type); |
| 421 | |
| 422 | /* Read the branch trace configuration into BUFFER. |
| 423 | Return 0 on success; print an error message into BUFFER and return -1 |
| 424 | otherwise. */ |
| 425 | virtual int read_btrace_conf (const btrace_target_info *tinfo, |
| 426 | buffer *buf); |
| 427 | |
| 428 | /* Return true if target supports range stepping. */ |
| 429 | virtual bool supports_range_stepping (); |
| 430 | |
| 431 | /* Return true if the pid_to_exec_file op is supported. */ |
| 432 | virtual bool supports_pid_to_exec_file (); |
| 433 | |
| 434 | /* Return the full absolute name of the executable file that was |
| 435 | run to create the process PID. If the executable file cannot |
| 436 | be determined, NULL is returned. Otherwise, a pointer to a |
| 437 | character string containing the pathname is returned. This |
| 438 | string should be copied into a buffer by the client if the string |
| 439 | will not be immediately used, or if it must persist. */ |
| 440 | virtual char *pid_to_exec_file (int pid); |
| 441 | |
| 442 | /* Return true if any of the multifs ops is supported. */ |
| 443 | virtual bool supports_multifs (); |
| 444 | |
| 445 | /* Multiple-filesystem-aware open. Like open(2), but operating in |
| 446 | the filesystem as it appears to process PID. Systems where all |
| 447 | processes share a common filesystem should not override this. |
| 448 | The default behavior is to use open(2). */ |
| 449 | virtual int multifs_open (int pid, const char *filename, |
| 450 | int flags, mode_t mode); |
| 451 | |
| 452 | /* Multiple-filesystem-aware unlink. Like unlink(2), but operates |
| 453 | in the filesystem as it appears to process PID. Systems where |
| 454 | all processes share a common filesystem should not override this. |
| 455 | The default behavior is to use unlink(2). */ |
| 456 | virtual int multifs_unlink (int pid, const char *filename); |
| 457 | |
| 458 | /* Multiple-filesystem-aware readlink. Like readlink(2), but |
| 459 | operating in the filesystem as it appears to process PID. |
| 460 | Systems where all processes share a common filesystem should |
| 461 | not override this. The default behavior is to use readlink(2). */ |
| 462 | virtual ssize_t multifs_readlink (int pid, const char *filename, |
| 463 | char *buf, size_t bufsiz); |
| 464 | |
| 465 | /* Return the breakpoint kind for this target based on PC. The |
| 466 | PCPTR is adjusted to the real memory location in case a flag |
| 467 | (e.g., the Thumb bit on ARM) was present in the PC. */ |
| 468 | virtual int breakpoint_kind_from_pc (CORE_ADDR *pcptr); |
| 469 | |
| 470 | /* Return the software breakpoint from KIND. KIND can have target |
| 471 | specific meaning like the Z0 kind parameter. |
| 472 | SIZE is set to the software breakpoint's length in memory. */ |
| 473 | virtual const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) = 0; |
| 474 | |
| 475 | /* Return the breakpoint kind for this target based on the current |
| 476 | processor state (e.g. the current instruction mode on ARM) and the |
| 477 | PC. The PCPTR is adjusted to the real memory location in case a |
| 478 | flag (e.g., the Thumb bit on ARM) is present in the PC. */ |
| 479 | virtual int breakpoint_kind_from_current_state (CORE_ADDR *pcptr); |
| 480 | |
| 481 | /* Return the thread's name, or NULL if the target is unable to |
| 482 | determine it. The returned value must not be freed by the |
| 483 | caller. */ |
| 484 | virtual const char *thread_name (ptid_t thread); |
| 485 | |
| 486 | /* Thread ID to (numeric) thread handle: Return true on success and |
| 487 | false for failure. Return pointer to thread handle via HANDLE |
| 488 | and the handle's length via HANDLE_LEN. */ |
| 489 | virtual bool thread_handle (ptid_t ptid, gdb_byte **handle, |
| 490 | int *handle_len); |
| 491 | |
| 492 | /* Returns true if the target can software single step. */ |
| 493 | virtual bool supports_software_single_step (); |
| 494 | |
| 495 | /* Return true if the target supports catch syscall. */ |
| 496 | virtual bool supports_catch_syscall (); |
| 497 | |
| 498 | /* Return tdesc index for IPA. */ |
| 499 | virtual int get_ipa_tdesc_idx (); |
| 500 | }; |
| 501 | |
| 502 | extern process_stratum_target *the_target; |
| 503 | |
| 504 | void set_target_ops (process_stratum_target *); |
| 505 | |
| 506 | #define target_create_inferior(program, program_args) \ |
| 507 | the_target->create_inferior (program, program_args) |
| 508 | |
| 509 | #define target_post_create_inferior() \ |
| 510 | the_target->post_create_inferior () |
| 511 | |
| 512 | #define myattach(pid) \ |
| 513 | the_target->attach (pid) |
| 514 | |
| 515 | int kill_inferior (process_info *proc); |
| 516 | |
| 517 | #define target_supports_fork_events() \ |
| 518 | the_target->supports_fork_events () |
| 519 | |
| 520 | #define target_supports_vfork_events() \ |
| 521 | the_target->supports_vfork_events () |
| 522 | |
| 523 | #define target_supports_exec_events() \ |
| 524 | the_target->supports_exec_events () |
| 525 | |
| 526 | #define target_handle_new_gdb_connection() \ |
| 527 | the_target->handle_new_gdb_connection () |
| 528 | |
| 529 | #define detach_inferior(proc) \ |
| 530 | the_target->detach (proc) |
| 531 | |
| 532 | #define mythread_alive(pid) \ |
| 533 | the_target->thread_alive (pid) |
| 534 | |
| 535 | #define fetch_inferior_registers(regcache, regno) \ |
| 536 | the_target->fetch_registers (regcache, regno) |
| 537 | |
| 538 | #define store_inferior_registers(regcache, regno) \ |
| 539 | the_target->store_registers (regcache, regno) |
| 540 | |
| 541 | #define join_inferior(pid) \ |
| 542 | the_target->join (pid) |
| 543 | |
| 544 | #define target_supports_non_stop() \ |
| 545 | the_target->supports_non_stop () |
| 546 | |
| 547 | #define target_async(enable) \ |
| 548 | the_target->async (enable) |
| 549 | |
| 550 | #define target_process_qsupported(features, count) \ |
| 551 | the_target->process_qsupported (features, count) |
| 552 | |
| 553 | #define target_supports_catch_syscall() \ |
| 554 | the_target->supports_catch_syscall () |
| 555 | |
| 556 | #define target_get_ipa_tdesc_idx() \ |
| 557 | the_target->get_ipa_tdesc_idx () |
| 558 | |
| 559 | #define target_supports_tracepoints() \ |
| 560 | the_target->supports_tracepoints () |
| 561 | |
| 562 | #define target_supports_fast_tracepoints() \ |
| 563 | the_target->supports_fast_tracepoints () |
| 564 | |
| 565 | #define target_get_min_fast_tracepoint_insn_len() \ |
| 566 | the_target->get_min_fast_tracepoint_insn_len () |
| 567 | |
| 568 | #define target_thread_stopped(thread) \ |
| 569 | the_target->thread_stopped (thread) |
| 570 | |
| 571 | #define target_pause_all(freeze) \ |
| 572 | the_target->pause_all (freeze) |
| 573 | |
| 574 | #define target_unpause_all(unfreeze) \ |
| 575 | the_target->unpause_all (unfreeze) |
| 576 | |
| 577 | #define target_stabilize_threads() \ |
| 578 | the_target->stabilize_threads () |
| 579 | |
| 580 | #define target_install_fast_tracepoint_jump_pad(tpoint, tpaddr, \ |
| 581 | collector, lockaddr, \ |
| 582 | orig_size, \ |
| 583 | jump_entry, \ |
| 584 | trampoline, trampoline_size, \ |
| 585 | jjump_pad_insn, \ |
| 586 | jjump_pad_insn_size, \ |
| 587 | adjusted_insn_addr, \ |
| 588 | adjusted_insn_addr_end, \ |
| 589 | err) \ |
| 590 | the_target->install_fast_tracepoint_jump_pad (tpoint, tpaddr, \ |
| 591 | collector,lockaddr, \ |
| 592 | orig_size, jump_entry, \ |
| 593 | trampoline, \ |
| 594 | trampoline_size, \ |
| 595 | jjump_pad_insn, \ |
| 596 | jjump_pad_insn_size, \ |
| 597 | adjusted_insn_addr, \ |
| 598 | adjusted_insn_addr_end, \ |
| 599 | err) |
| 600 | |
| 601 | #define target_emit_ops() \ |
| 602 | the_target->emit_ops () |
| 603 | |
| 604 | #define target_supports_disable_randomization() \ |
| 605 | the_target->supports_disable_randomization () |
| 606 | |
| 607 | #define target_supports_agent() \ |
| 608 | the_target->supports_agent () |
| 609 | |
| 610 | static inline struct btrace_target_info * |
| 611 | target_enable_btrace (ptid_t ptid, const struct btrace_config *conf) |
| 612 | { |
| 613 | return the_target->enable_btrace (ptid, conf); |
| 614 | } |
| 615 | |
| 616 | static inline int |
| 617 | target_disable_btrace (struct btrace_target_info *tinfo) |
| 618 | { |
| 619 | return the_target->disable_btrace (tinfo); |
| 620 | } |
| 621 | |
| 622 | static inline int |
| 623 | target_read_btrace (struct btrace_target_info *tinfo, |
| 624 | struct buffer *buffer, |
| 625 | enum btrace_read_type type) |
| 626 | { |
| 627 | return the_target->read_btrace (tinfo, buffer, type); |
| 628 | } |
| 629 | |
| 630 | static inline int |
| 631 | target_read_btrace_conf (struct btrace_target_info *tinfo, |
| 632 | struct buffer *buffer) |
| 633 | { |
| 634 | return the_target->read_btrace_conf (tinfo, buffer); |
| 635 | } |
| 636 | |
| 637 | #define target_supports_range_stepping() \ |
| 638 | the_target->supports_range_stepping () |
| 639 | |
| 640 | #define target_supports_stopped_by_sw_breakpoint() \ |
| 641 | the_target->supports_stopped_by_sw_breakpoint () |
| 642 | |
| 643 | #define target_stopped_by_sw_breakpoint() \ |
| 644 | the_target->stopped_by_sw_breakpoint () |
| 645 | |
| 646 | #define target_supports_stopped_by_hw_breakpoint() \ |
| 647 | the_target->supports_stopped_by_hw_breakpoint () |
| 648 | |
| 649 | #define target_supports_hardware_single_step() \ |
| 650 | the_target->supports_hardware_single_step () |
| 651 | |
| 652 | #define target_stopped_by_hw_breakpoint() \ |
| 653 | the_target->stopped_by_hw_breakpoint () |
| 654 | |
| 655 | #define target_breakpoint_kind_from_pc(pcptr) \ |
| 656 | the_target->breakpoint_kind_from_pc (pcptr) |
| 657 | |
| 658 | #define target_breakpoint_kind_from_current_state(pcptr) \ |
| 659 | the_target->breakpoint_kind_from_current_state (pcptr) |
| 660 | |
| 661 | #define target_supports_software_single_step() \ |
| 662 | the_target->supports_software_single_step () |
| 663 | |
| 664 | ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options, |
| 665 | int connected_wait); |
| 666 | |
| 667 | /* Prepare to read or write memory from the inferior process. See the |
| 668 | corresponding process_stratum_target methods for more details. */ |
| 669 | |
| 670 | int prepare_to_access_memory (void); |
| 671 | void done_accessing_memory (void); |
| 672 | |
| 673 | #define target_core_of_thread(ptid) \ |
| 674 | the_target->core_of_thread (ptid) |
| 675 | |
| 676 | #define target_thread_name(ptid) \ |
| 677 | the_target->thread_name (ptid) |
| 678 | |
| 679 | #define target_thread_handle(ptid, handle, handle_len) \ |
| 680 | the_target->thread_handle (ptid, handle, handle_len) |
| 681 | |
| 682 | int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len); |
| 683 | |
| 684 | int set_desired_thread (); |
| 685 | |
| 686 | const char *target_pid_to_str (ptid_t); |
| 687 | |
| 688 | #endif /* GDBSERVER_TARGET_H */ |