180 lines
4.4 KiB
C
180 lines
4.4 KiB
C
/* libthread_db helper functions for the remote server for GDB.
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Copyright 2002, 2004, 2005
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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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#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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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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#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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#ifdef HAVE_REGSETS
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struct process_info *process;
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struct thread_info *reg_inferior, *save_inferior;
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process = (struct process_info *) find_inferior_id (&all_processes,
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lwpid);
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if (process == NULL)
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return PS_ERR;
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reg_inferior = get_process_thread (process);
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save_inferior = current_inferior;
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current_inferior = reg_inferior;
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the_target->fetch_registers (0);
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gregset_info()->fill_function (gregset);
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current_inferior = save_inferior;
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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,
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gdb_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,
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const gdb_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 ph->pid;
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}
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