1 /* libthread_db helper functions for the remote server for GDB.
2 Copyright (C) 2002-2015 Free Software Foundation, Inc.
4 Contributed by MontaVista Software.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This file is currently tied to GNU/Linux. It should scale well to
24 another libthread_db implementation, with the approriate gdbserver
25 hooks, but for now this means we can use GNU/Linux's target data. */
27 #include "linux-low.h"
29 #include "gdb_proc_service.h"
31 typedef struct ps_prochandle
*gdb_ps_prochandle_t
;
32 typedef void *gdb_ps_read_buf_t
;
33 typedef const void *gdb_ps_write_buf_t
;
34 typedef size_t gdb_ps_size_t
;
36 #ifdef HAVE_LINUX_REGSETS
41 static struct regset_info
*
45 const struct regs_info
*regs_info
= (*the_low_target
.regs_info
) ();
46 struct regsets_info
*regsets_info
= regs_info
->regsets_info
;
48 while (regsets_info
->regsets
[i
].size
!= -1)
50 if (regsets_info
->regsets
[i
].type
== GENERAL_REGS
)
55 return ®sets_info
->regsets
[i
];
59 /* Search for the symbol named NAME within the object named OBJ within
60 the target process PH. If the symbol is found the address of the
61 symbol is stored in SYM_ADDR. */
64 ps_pglobal_lookup (gdb_ps_prochandle_t ph
, const char *obj
,
65 const char *name
, psaddr_t
*sym_addr
)
69 if (thread_db_look_up_one_symbol (name
, &addr
) == 0)
72 *sym_addr
= (psaddr_t
) (unsigned long) addr
;
76 /* Read SIZE bytes from the target process PH at address ADDR and copy
80 ps_pdread (gdb_ps_prochandle_t ph
, psaddr_t addr
,
81 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
83 read_inferior_memory ((uintptr_t) addr
, (gdb_byte
*) buf
, size
);
87 /* Write SIZE bytes from BUF into the target process PH at address ADDR. */
90 ps_pdwrite (gdb_ps_prochandle_t ph
, psaddr_t addr
,
91 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
93 if (write_inferior_memory ((uintptr_t) addr
, (const gdb_byte
*) buf
, size
)
99 /* Get the general registers of LWP LWPID within the target process PH
100 and store them in GREGSET. */
103 ps_lgetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, prgregset_t gregset
)
106 struct lwp_info
*lwp
;
107 struct thread_info
*reg_thread
, *saved_thread
;
108 struct regcache
*regcache
;
110 lwp
= find_lwp_pid (pid_to_ptid (lwpid
));
114 reg_thread
= get_lwp_thread (lwp
);
115 saved_thread
= current_thread
;
116 current_thread
= reg_thread
;
117 regcache
= get_thread_regcache (current_thread
, 1);
118 gregset_info ()->fill_function (regcache
, gregset
);
120 current_thread
= saved_thread
;
127 /* Set the general registers of LWP LWPID within the target process PH
131 ps_lsetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, const prgregset_t gregset
)
137 /* Get the floating-point registers of LWP LWPID within the target
138 process PH and store them in FPREGSET. */
141 ps_lgetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, prfpregset_t
*fpregset
)
147 /* Set the floating-point registers of LWP LWPID within the target
148 process PH from FPREGSET. */
151 ps_lsetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, const prfpregset_t
*fpregset
)
157 /* Return overall process id of the target PH. Special for GNU/Linux
158 -- not used on Solaris. */
161 ps_getpid (gdb_ps_prochandle_t ph
)
163 return pid_of (current_thread
);
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