164 lines
4.3 KiB
C
164 lines
4.3 KiB
C
/* libthread_db helper functions for the remote server for GDB.
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Copyright (C) 2002-2016 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 3 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, see <http://www.gnu.org/licenses/>. */
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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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#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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#ifdef HAVE_LINUX_REGSETS
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#define HAVE_REGSETS
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#endif
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#ifdef HAVE_REGSETS
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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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const struct regs_info *regs_info = (*the_low_target.regs_info) ();
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struct regsets_info *regsets_info = regs_info->regsets_info;
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while (regsets_info->regsets[i].size != -1)
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{
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if (regsets_info->regsets[i].type == GENERAL_REGS)
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break;
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i++;
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}
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return ®sets_info->regsets[i];
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}
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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, psaddr_t *sym_addr)
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{
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CORE_ADDR addr;
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if (thread_db_look_up_one_symbol (name, &addr) == 0)
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return PS_NOSYM;
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*sym_addr = (psaddr_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, psaddr_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 ((uintptr_t) addr, (gdb_byte *) 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, psaddr_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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if (write_inferior_memory ((uintptr_t) addr, (const gdb_byte *) buf, size)
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!= 0)
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return PS_ERR;
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return PS_OK;
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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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#ifdef HAVE_REGSETS
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struct lwp_info *lwp;
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struct thread_info *reg_thread, *saved_thread;
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struct regcache *regcache;
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lwp = find_lwp_pid (pid_to_ptid (lwpid));
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if (lwp == NULL)
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return PS_ERR;
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reg_thread = get_lwp_thread (lwp);
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saved_thread = current_thread;
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current_thread = reg_thread;
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regcache = get_thread_regcache (current_thread, 1);
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gregset_info ()->fill_function (regcache, gregset);
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current_thread = saved_thread;
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return PS_OK;
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#else
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return PS_ERR;
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#endif
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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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/* Unneeded. */
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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, prfpregset_t *fpregset)
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{
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/* Unneeded. */
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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, const prfpregset_t *fpregset)
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{
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/* Unneeded. */
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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 pid_of (current_thread);
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}
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