160 lines
4.1 KiB
C
160 lines
4.1 KiB
C
/* libthread_db helper functions for the remote server for GDB.
|
|
Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
|
|
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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#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"
|
|
|
|
#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;
|
|
|
|
#ifdef HAVE_LINUX_REGSETS
|
|
#define HAVE_REGSETS
|
|
#endif
|
|
|
|
#ifdef HAVE_REGSETS
|
|
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];
|
|
}
|
|
#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, psaddr_t *sym_addr)
|
|
{
|
|
CORE_ADDR addr;
|
|
|
|
if (thread_db_look_up_one_symbol (name, &addr) == 0)
|
|
return PS_NOSYM;
|
|
|
|
*sym_addr = (psaddr_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, psaddr_t addr,
|
|
gdb_ps_read_buf_t buf, gdb_ps_size_t size)
|
|
{
|
|
read_inferior_memory ((unsigned long) 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, psaddr_t addr,
|
|
gdb_ps_write_buf_t buf, gdb_ps_size_t size)
|
|
{
|
|
return write_inferior_memory ((unsigned long) 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)
|
|
{
|
|
#ifdef HAVE_REGSETS
|
|
struct lwp_info *lwp;
|
|
struct thread_info *reg_inferior, *save_inferior;
|
|
struct regcache *regcache;
|
|
|
|
lwp = find_lwp_pid (pid_to_ptid (lwpid));
|
|
if (lwp == NULL)
|
|
return PS_ERR;
|
|
|
|
reg_inferior = get_lwp_thread (lwp);
|
|
save_inferior = current_inferior;
|
|
current_inferior = reg_inferior;
|
|
regcache = get_thread_regcache (current_inferior, 1);
|
|
gregset_info ()->fill_function (regcache, gregset);
|
|
|
|
current_inferior = save_inferior;
|
|
return PS_OK;
|
|
#else
|
|
return PS_ERR;
|
|
#endif
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
/* Unneeded. */
|
|
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, void *fpregset)
|
|
{
|
|
/* Unneeded. */
|
|
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, void *fpregset)
|
|
{
|
|
/* Unneeded. */
|
|
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 pid_of (get_thread_lwp (current_inferior));
|
|
}
|