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https://github.com/darlinghq/darling-gdb.git
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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.
257 lines
6.2 KiB
C
257 lines
6.2 KiB
C
/* libthread_db helper functions 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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#include "server.h"
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/* This file is currently tied to GNU/Linux. It should scale well to
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another libthread_db implementation, with the approriate gdbserver
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hooks, but for now this means we can use GNU/Linux's target data. */
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#include "linux-low.h"
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/* Correct for all GNU/Linux targets (for quite some time). */
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#define GDB_GREGSET_T elf_gregset_t
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#define GDB_FPREGSET_T elf_fpregset_t
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#ifndef HAVE_ELF_FPREGSET_T
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/* Make sure we have said types. Not all platforms bring in <linux/elf.h>
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via <sys/procfs.h>. */
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#ifdef HAVE_LINUX_ELF_H
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#include <linux/elf.h>
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#endif
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#endif
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#include "../gdb_proc_service.h"
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typedef struct ps_prochandle *gdb_ps_prochandle_t;
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typedef void *gdb_ps_read_buf_t;
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typedef const void *gdb_ps_write_buf_t;
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typedef size_t gdb_ps_size_t;
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/* FIXME redo this right */
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#if 0
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#ifndef HAVE_LINUX_REGSETS
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#error HAVE_LINUX_REGSETS required!
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#else
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static struct regset_info *
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gregset_info(void)
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{
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int i = 0;
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while (target_regsets[i].size != -1)
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{
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if (target_regsets[i].type == GENERAL_REGS)
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break;
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i++;
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}
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return &target_regsets[i];
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}
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static struct regset_info *
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fpregset_info(void)
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{
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int i = 0;
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while (target_regsets[i].size != -1)
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{
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if (target_regsets[i].type == FP_REGS)
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break;
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i++;
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}
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return &target_regsets[i];
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}
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#endif
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#endif
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/* Search for the symbol named NAME within the object named OBJ within
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the target process PH. If the symbol is found the address of the
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symbol is stored in SYM_ADDR. */
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ps_err_e
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ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj,
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const char *name, paddr_t *sym_addr)
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{
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CORE_ADDR addr;
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if (look_up_one_symbol (name, &addr) == 0)
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return PS_NOSYM;
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*sym_addr = (paddr_t) (unsigned long) addr;
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return PS_OK;
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}
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/* Read SIZE bytes from the target process PH at address ADDR and copy
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them into BUF. */
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ps_err_e
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ps_pdread (gdb_ps_prochandle_t ph, paddr_t addr,
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gdb_ps_read_buf_t buf, gdb_ps_size_t size)
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{
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read_inferior_memory (addr, buf, size);
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return PS_OK;
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}
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/* Write SIZE bytes from BUF into the target process PH at address ADDR. */
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ps_err_e
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ps_pdwrite (gdb_ps_prochandle_t ph, paddr_t addr,
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gdb_ps_write_buf_t buf, gdb_ps_size_t size)
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{
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return write_inferior_memory (addr, buf, size);
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}
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/* Get the general registers of LWP LWPID within the target process PH
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and store them in GREGSET. */
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ps_err_e
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ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
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{
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#if 0
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struct thread_info *reg_inferior, *save_inferior;
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void *regcache;
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reg_inferior = (struct thread_info *) find_inferior_id (&all_threads,
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lwpid);
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if (reg_inferior == NULL)
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return PS_ERR;
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save_inferior = current_inferior;
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current_inferior = reg_inferior;
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regcache = new_register_cache ();
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the_target->fetch_registers (0, regcache);
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gregset_info()->fill_function (gregset, regcache);
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free_register_cache (regcache);
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current_inferior = save_inferior;
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return PS_OK;
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#endif
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/* FIXME */
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return PS_ERR;
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}
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/* Set the general registers of LWP LWPID within the target process PH
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from GREGSET. */
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ps_err_e
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ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset)
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{
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#if 0
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struct thread_info *reg_inferior, *save_inferior;
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void *regcache;
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reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, lwpid);
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if (reg_inferior == NULL)
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return PS_ERR;
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save_inferior = current_inferior;
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current_inferior = reg_inferior;
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regcache = new_register_cache ();
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gregset_info()->store_function (gregset, regcache);
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the_target->store_registers (0, regcache);
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free_register_cache (regcache);
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current_inferior = save_inferior;
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return PS_OK;
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#endif
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/* FIXME */
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return PS_ERR;
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}
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/* Get the floating-point registers of LWP LWPID within the target
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process PH and store them in FPREGSET. */
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ps_err_e
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ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
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gdb_prfpregset_t *fpregset)
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{
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#if 0
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struct thread_info *reg_inferior, *save_inferior;
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void *regcache;
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reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, lwpid);
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if (reg_inferior == NULL)
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return PS_ERR;
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save_inferior = current_inferior;
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current_inferior = reg_inferior;
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regcache = new_register_cache ();
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the_target->fetch_registers (0, regcache);
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fpregset_info()->fill_function (fpregset, regcache);
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free_register_cache (regcache);
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current_inferior = save_inferior;
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return PS_OK;
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#endif
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/* FIXME */
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return PS_ERR;
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}
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/* Set the floating-point registers of LWP LWPID within the target
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process PH from FPREGSET. */
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ps_err_e
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ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
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const gdb_prfpregset_t *fpregset)
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{
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#if 0
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struct thread_info *reg_inferior, *save_inferior;
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void *regcache;
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reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, lwpid);
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if (reg_inferior == NULL)
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return PS_ERR;
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save_inferior = current_inferior;
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current_inferior = reg_inferior;
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regcache = new_register_cache ();
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fpregset_info()->store_function (fpregset, regcache);
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the_target->store_registers (0, regcache);
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free_register_cache (regcache);
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current_inferior = save_inferior;
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return PS_OK;
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#endif
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/* FIXME */
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return PS_ERR;
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}
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/* Return overall process id of the target PH. Special for GNU/Linux
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-- not used on Solaris. */
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pid_t
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ps_getpid (gdb_ps_prochandle_t ph)
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{
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return ph->pid;
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}
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