257 lines
6.2 KiB
C
257 lines
6.2 KiB
C
/* libthread_db helper functions for the remote server for GDB.
|
|
Copyright 2002
|
|
Free Software Foundation, Inc.
|
|
|
|
Contributed by MontaVista Software.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "server.h"
|
|
|
|
/* This file is currently tied to GNU/Linux. It should scale well to
|
|
another libthread_db implementation, with the approriate gdbserver
|
|
hooks, but for now this means we can use GNU/Linux's target data. */
|
|
|
|
#include "linux-low.h"
|
|
|
|
/* Correct for all GNU/Linux targets (for quite some time). */
|
|
#define GDB_GREGSET_T elf_gregset_t
|
|
#define GDB_FPREGSET_T elf_fpregset_t
|
|
|
|
#ifndef HAVE_ELF_FPREGSET_T
|
|
/* Make sure we have said types. Not all platforms bring in <linux/elf.h>
|
|
via <sys/procfs.h>. */
|
|
#ifdef HAVE_LINUX_ELF_H
|
|
#include <linux/elf.h>
|
|
#endif
|
|
#endif
|
|
|
|
#include "../gdb_proc_service.h"
|
|
|
|
typedef struct ps_prochandle *gdb_ps_prochandle_t;
|
|
typedef void *gdb_ps_read_buf_t;
|
|
typedef const void *gdb_ps_write_buf_t;
|
|
typedef size_t gdb_ps_size_t;
|
|
|
|
/* FIXME redo this right */
|
|
#if 0
|
|
#ifndef HAVE_LINUX_REGSETS
|
|
#error HAVE_LINUX_REGSETS required!
|
|
#else
|
|
static struct regset_info *
|
|
gregset_info(void)
|
|
{
|
|
int i = 0;
|
|
|
|
while (target_regsets[i].size != -1)
|
|
{
|
|
if (target_regsets[i].type == GENERAL_REGS)
|
|
break;
|
|
i++;
|
|
}
|
|
|
|
return &target_regsets[i];
|
|
}
|
|
|
|
static struct regset_info *
|
|
fpregset_info(void)
|
|
{
|
|
int i = 0;
|
|
|
|
while (target_regsets[i].size != -1)
|
|
{
|
|
if (target_regsets[i].type == FP_REGS)
|
|
break;
|
|
i++;
|
|
}
|
|
|
|
return &target_regsets[i];
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
/* Search for the symbol named NAME within the object named OBJ within
|
|
the target process PH. If the symbol is found the address of the
|
|
symbol is stored in SYM_ADDR. */
|
|
|
|
ps_err_e
|
|
ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj,
|
|
const char *name, paddr_t *sym_addr)
|
|
{
|
|
CORE_ADDR addr;
|
|
|
|
if (look_up_one_symbol (name, &addr) == 0)
|
|
return PS_NOSYM;
|
|
|
|
*sym_addr = (paddr_t) (unsigned long) addr;
|
|
return PS_OK;
|
|
}
|
|
|
|
/* Read SIZE bytes from the target process PH at address ADDR and copy
|
|
them into BUF. */
|
|
|
|
ps_err_e
|
|
ps_pdread (gdb_ps_prochandle_t ph, paddr_t addr,
|
|
gdb_ps_read_buf_t buf, gdb_ps_size_t size)
|
|
{
|
|
read_inferior_memory (addr, buf, size);
|
|
return PS_OK;
|
|
}
|
|
|
|
/* Write SIZE bytes from BUF into the target process PH at address ADDR. */
|
|
|
|
ps_err_e
|
|
ps_pdwrite (gdb_ps_prochandle_t ph, paddr_t addr,
|
|
gdb_ps_write_buf_t buf, gdb_ps_size_t size)
|
|
{
|
|
return write_inferior_memory (addr, buf, size);
|
|
}
|
|
|
|
/* Get the general registers of LWP LWPID within the target process PH
|
|
and store them in GREGSET. */
|
|
|
|
ps_err_e
|
|
ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
|
|
{
|
|
#if 0
|
|
struct thread_info *reg_inferior, *save_inferior;
|
|
void *regcache;
|
|
|
|
reg_inferior = (struct thread_info *) find_inferior_id (&all_threads,
|
|
lwpid);
|
|
if (reg_inferior == NULL)
|
|
return PS_ERR;
|
|
|
|
save_inferior = current_inferior;
|
|
current_inferior = reg_inferior;
|
|
|
|
regcache = new_register_cache ();
|
|
the_target->fetch_registers (0, regcache);
|
|
gregset_info()->fill_function (gregset, regcache);
|
|
free_register_cache (regcache);
|
|
|
|
current_inferior = save_inferior;
|
|
return PS_OK;
|
|
#endif
|
|
/* FIXME */
|
|
return PS_ERR;
|
|
}
|
|
|
|
/* Set the general registers of LWP LWPID within the target process PH
|
|
from GREGSET. */
|
|
|
|
ps_err_e
|
|
ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset)
|
|
{
|
|
#if 0
|
|
struct thread_info *reg_inferior, *save_inferior;
|
|
void *regcache;
|
|
|
|
reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, lwpid);
|
|
if (reg_inferior == NULL)
|
|
return PS_ERR;
|
|
|
|
save_inferior = current_inferior;
|
|
current_inferior = reg_inferior;
|
|
|
|
regcache = new_register_cache ();
|
|
gregset_info()->store_function (gregset, regcache);
|
|
the_target->store_registers (0, regcache);
|
|
free_register_cache (regcache);
|
|
|
|
current_inferior = save_inferior;
|
|
|
|
return PS_OK;
|
|
#endif
|
|
/* FIXME */
|
|
return PS_ERR;
|
|
}
|
|
|
|
/* Get the floating-point registers of LWP LWPID within the target
|
|
process PH and store them in FPREGSET. */
|
|
|
|
ps_err_e
|
|
ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
|
|
gdb_prfpregset_t *fpregset)
|
|
{
|
|
#if 0
|
|
struct thread_info *reg_inferior, *save_inferior;
|
|
void *regcache;
|
|
|
|
reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, lwpid);
|
|
if (reg_inferior == NULL)
|
|
return PS_ERR;
|
|
|
|
save_inferior = current_inferior;
|
|
current_inferior = reg_inferior;
|
|
|
|
regcache = new_register_cache ();
|
|
the_target->fetch_registers (0, regcache);
|
|
fpregset_info()->fill_function (fpregset, regcache);
|
|
free_register_cache (regcache);
|
|
|
|
current_inferior = save_inferior;
|
|
|
|
return PS_OK;
|
|
#endif
|
|
/* FIXME */
|
|
return PS_ERR;
|
|
}
|
|
|
|
/* Set the floating-point registers of LWP LWPID within the target
|
|
process PH from FPREGSET. */
|
|
|
|
ps_err_e
|
|
ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
|
|
const gdb_prfpregset_t *fpregset)
|
|
{
|
|
#if 0
|
|
struct thread_info *reg_inferior, *save_inferior;
|
|
void *regcache;
|
|
|
|
reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, lwpid);
|
|
if (reg_inferior == NULL)
|
|
return PS_ERR;
|
|
|
|
save_inferior = current_inferior;
|
|
current_inferior = reg_inferior;
|
|
|
|
regcache = new_register_cache ();
|
|
fpregset_info()->store_function (fpregset, regcache);
|
|
the_target->store_registers (0, regcache);
|
|
free_register_cache (regcache);
|
|
|
|
current_inferior = save_inferior;
|
|
|
|
return PS_OK;
|
|
#endif
|
|
/* FIXME */
|
|
return PS_ERR;
|
|
}
|
|
|
|
/* Return overall process id of the target PH. Special for GNU/Linux
|
|
-- not used on Solaris. */
|
|
|
|
pid_t
|
|
ps_getpid (gdb_ps_prochandle_t ph)
|
|
{
|
|
return ph->pid;
|
|
}
|
|
|
|
|