0d62e5e807
* gdbserver/thread-db.c: New file. * gdbserver/proc-service.c: New file. * gdbserver/acinclude.m4: New file. * gdbserver/Makefile.in: Add GDBSERVER_LIBS, gdb_proc_service_h, proc-service.o, and thread-db.o. (linux-low.o): Add USE_THREAD_DB. * gdbserver/acconfig.h: Add HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T, HAVE_LWPID_T, HAVE_PSADDR_T, and PRFPREGSET_T_BROKEN. * gdbserver/aclocal.m4: Regenerated. * gdbserver/config.in: Regenerated. * gdbserver/configure: Regenerated. * gdbserver/configure.in: Check for proc_service.h, sys/procfs.h, thread_db.h, and linux/elf.h headrs. Check for lwpid_t, psaddr_t, prgregset_t, prfpregset_t, and PRFPREGSET_T_BROKEN. Introduce srv_thread_depfiles and USE_THREAD_DB. Check for -lthread_db and thread support. * gdbserver/configure.srv: Enable thread_db support for ARM, i386, MIPS, PowerPC, and SuperH. * gdbserver/i387-fp.c: Constify arguments. * gdbserver/i387-fp.h: Likewise. * gdbserver/inferiors.c: (struct thread_info): Renamed from `struct inferior_info'. Remove PID member. Use generic inferior list header. All uses updated. (inferiors, signal_pid): Removed. (all_threads): New variable. (get_thread): Define. (add_inferior_to_list): New function. (for_each_inferior): New function. (change_inferior_id): New function. (add_inferior): Removed. (remove_inferior): New function. (add_thread): New function. (free_one_thread): New function. (remove_thread): New function. (clear_inferiors): Use for_each_inferior and free_one_thread. (find_inferior): New function. (find_inferior_id): New function. (inferior_target_data): Update argument type. (set_inferior_target_data): Likewise. (inferior_regcache_data): Likewise. (set_inferior_regcache_data): Likewise. * gdbserver/linux-low.c (linux_bp_reinsert): Remove. (all_processes, stopping_threads, using_thrads) (struct pending_signals, debug_threads, pid_of): New. (inferior_pid): Replace with macro. (struct inferior_linux_data): Remove. (get_stop_pc, add_process): New functions. (linux_create_inferior): Restore SIGRTMIN+1 before calling exec. Use add_process and add_thread. (linux_attach_lwp): New function, based on old linux_attach. Use add_process and add_thread. Set stop_expected for new threads. (linux_attach): New function. (linux_kill_one_process): New function. (linux_kill): Kill all LWPs. (linux_thread_alive): Use find_inferior_id. (check_removed_breakpoints, status_pending_p): New functions. (linux_wait_for_process): Renamed from linux_wait_for_one_inferior. Update. Use WNOHANG. Wait for cloned processes also. Update process struct for the found process. (linux_wait_for_event): New function. (linux_wait): Use it. Support LWPs. (send_sigstop, wait_for_sigstop, stop_all_processes) (linux_resume_one_process, linux_continue_one_process): New functions. (linux_resume): Support LWPs. (REGISTER_RAW_SIZE): Remove. (fetch_register): Use register_size instead. Call supply_register. (usr_store_inferior_registers): Likewise. Call collect_register. Fix recursive case. (regsets_fetch_inferior_registers): Improve error message. (regsets_store_inferior_registers): Add debugging. (linux_look_up_symbols): Call thread_db_init if USE_THREAD_DB. (unstopped_p, linux_signal_pid): New functions. (linux_target_ops): Add linux_signal_pid. (linux_init_signals): New function. (initialize_low): Call it. Initialize using_threads. * gdbserver/regcache.c (inferior_regcache_data): Add valid flag. (get_regcache): Fetch registers lazily. Add fetch argument and update all callers. (regcache_invalidate_one, regcache_invalidate): New functions. (new_register_cache): Renamed from create_register_cache. Return the new regcache. (free_register_cache): Change argument to a void *. (registers_to_string, registers_from_string): Call get_regcache with fetch flag set. (register_data): Make static. Pass fetch flag to get_regcache. (supply_register): Call get_regcache with fetch flag clear. (collect_register): Call get_regcache with fetch flag set. (collect_register_as_string): New function. * gdbserver/regcache.h: Update. * gdbserver/remote-utils.c (putpkt): Flush after debug output and use stderr. Handle input interrupts while waiting for an ACK. (input_interrupt): Use signal_pid method. (getpkt): Flush after debug output and use stderr. (outreg): Use collect_register_as_string. (new_thread_notify, dead_thread_notify): New functions. (prepare_resume_reply): Check using_threads. Set thread_from_wait and general_thread. (look_up_one_symbol): Flush after debug output. * gdbserver/server.c (step_thread, server_waiting): New variables. (start_inferior): Don't use signal_pid. Update call to mywait. (attach_inferior): Update call to mywait. (handle_query): Handle qfThreadInfo and qsThreadInfo. (main): Don't fetch/store registers explicitly. Use set_desired_inferior. Support proposed ``Hs'' packet. Update calls to mywait. * gdbserver/server.h: Update. (struct inferior_list, struct_inferior_list_entry): New. * gdbserver/target.c (set_desired_inferior): New. (write_inferior_memory): Constify. (mywait): New function. * gdbserver/target.h: Update. (struct target_ops): New signal_pid method. (mywait): Removed macro, added prototype. * gdbserver/linux-low.h (regset_func): Removed. (regset_fill_func, regset_store_func): New. (enum regset_type): New. (struct regset_info): Add type field. Use new operation types. (struct linux_target_ops): stop_pc renamed to get_pc. Add decr_pc_after_break and breakpoint_at. (get_process, get_thread_proess, get_process_thread) (strut process_info, all_processes, linux_attach_lwp) (thread_db_init): New. * gdbserver/linux-arm-low.c (arm_get_pc, arm_set_pc, arm_breakpoint, arm_breakpoint_len, arm_breakpoint_at): New. (the_low_target): Add new members. * gdbserver/linux-i386-low.c (i386_store_gregset, i386_store_fpregset) (i386_store_fpxregset): Constify. (target_regsets): Add new kind identifier. (i386_get_pc): Renamed from i386_stop_pc. Simplify. (i386_set_pc): Add debugging. (i386_breakpoint_at): New function. (the_low_target): Add new members. * gdbserver/linux-mips-low.c (mips_get_pc, mips_set_pc) (mips_breakpoint, mips_breakpoint_len, mips_reinsert_addr) (mips_breakpoint_at): New. (the_low_target): Add new members. * gdbserver/linux-ppc-low.c (ppc_get_pc, ppc_set_pc) (ppc_breakpoint, ppc_breakpoint_len, ppc_breakpoint_at): New. (the_low_target): Add new members. * gdbserver/linux-sh-low.c (sh_get_pc, sh_set_pc) (sh_breakpoint, sh_breakpoint_len, sh_breakpoint_at): New. (the_low_target): Add new members. * gdbserver/linux-x86-64-low.c (target_regsets): Add new kind identifier.
147 lines
4.2 KiB
C
147 lines
4.2 KiB
C
/* Target operations for the remote server for GDB.
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Copyright 2002
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Free Software Foundation, Inc.
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Contributed by MontaVista Software.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef TARGET_H
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#define TARGET_H
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struct target_ops
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{
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/* Start a new process.
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PROGRAM is a path to the program to execute.
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ARGS is a standard NULL-terminated array of arguments,
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to be passed to the inferior as ``argv''.
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Returns 0 on success, -1 on failure. Registers the new
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process with the process list. */
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int (*create_inferior) (char *program, char **args);
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/* Attach to a running process.
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PID is the process ID to attach to, specified by the user
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or a higher layer. */
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int (*attach) (int pid);
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/* Kill all inferiors. */
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void (*kill) (void);
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/* Return 1 iff the thread with process ID PID is alive. */
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int (*thread_alive) (int pid);
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/* Resume the inferior process.
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If STEP is non-zero, we want to single-step.
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If SIGNAL is nonzero, send the process that signal as we resume it.
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*/
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void (*resume) (int step, int signo);
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/* Wait for the inferior process to change state.
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STATUSP will be filled in with a response code to send to GDB.
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Returns the signal which caused the process to stop. */
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unsigned char (*wait) (char *status);
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/* Fetch registers from the inferior process.
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If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
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void (*fetch_registers) (int regno);
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/* Store registers to the inferior process.
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If REGNO is -1, store all registers; otherwise, store at least REGNO. */
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void (*store_registers) (int regno);
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/* Read memory from the inferior process. This should generally be
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called through read_inferior_memory, which handles breakpoint shadowing.
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Read LEN bytes at MEMADDR into a buffer at MYADDR. */
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void (*read_memory) (CORE_ADDR memaddr, char *myaddr, int len);
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/* Write memory to the inferior process. This should generally be
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called through write_inferior_memory, which handles breakpoint shadowing.
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Write LEN bytes from the buffer at MYADDR to MEMADDR.
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Returns 0 on success and errno on failure. */
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int (*write_memory) (CORE_ADDR memaddr, const char *myaddr, int len);
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/* Query GDB for the values of any symbols we're interested in.
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This function is called whenever we receive a "qSymbols::"
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query, which corresponds to every time more symbols (might)
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become available. NULL if we aren't interested in any
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symbols. */
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void (*look_up_symbols) (void);
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/* Return the PID we should send a signal to. Used for asynchronous
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interrupts (user hitting Control-C). */
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int (*signal_pid) (void);
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};
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extern struct target_ops *the_target;
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void set_target_ops (struct target_ops *);
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#define create_inferior(program, args) \
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(*the_target->create_inferior) (program, args)
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#define myattach(pid) \
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(*the_target->attach) (pid)
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#define kill_inferior() \
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(*the_target->kill) ()
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#define mythread_alive(pid) \
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(*the_target->thread_alive) (pid)
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#define myresume(step,signo) \
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(*the_target->resume) (step, signo)
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#define fetch_inferior_registers(regno) \
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(*the_target->fetch_registers) (regno)
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#define store_inferior_registers(regno) \
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(*the_target->store_registers) (regno)
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unsigned char mywait (char *statusp, int connected_wait);
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void read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len);
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int write_inferior_memory (CORE_ADDR memaddr, const char *myaddr, int len);
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void set_desired_inferior (int id);
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#endif /* TARGET_H */
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