1 /* libthread_db helper functions for the remote server for GDB.
2 Copyright (C) 2002, 2004, 2005
3 Free Software Foundation, Inc.
5 Contributed by MontaVista Software.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 Boston, MA 02110-1301, USA. */
26 /* This file is currently tied to GNU/Linux. It should scale well to
27 another libthread_db implementation, with the approriate gdbserver
28 hooks, but for now this means we can use GNU/Linux's target data. */
30 #include "linux-low.h"
32 /* Correct for all GNU/Linux targets (for quite some time). */
33 #define GDB_GREGSET_T elf_gregset_t
34 #define GDB_FPREGSET_T elf_fpregset_t
36 #ifndef HAVE_ELF_FPREGSET_T
37 /* Make sure we have said types. Not all platforms bring in <linux/elf.h>
38 via <sys/procfs.h>. */
39 #ifdef HAVE_LINUX_ELF_H
40 #include <linux/elf.h>
44 #include "../gdb_proc_service.h"
46 typedef struct ps_prochandle
*gdb_ps_prochandle_t
;
47 typedef void *gdb_ps_read_buf_t
;
48 typedef const void *gdb_ps_write_buf_t
;
49 typedef size_t gdb_ps_size_t
;
51 #ifdef HAVE_LINUX_REGSETS
56 static struct regset_info
*
61 while (target_regsets
[i
].size
!= -1)
63 if (target_regsets
[i
].type
== GENERAL_REGS
)
68 return &target_regsets
[i
];
72 /* Search for the symbol named NAME within the object named OBJ within
73 the target process PH. If the symbol is found the address of the
74 symbol is stored in SYM_ADDR. */
77 ps_pglobal_lookup (gdb_ps_prochandle_t ph
, const char *obj
,
78 const char *name
, paddr_t
*sym_addr
)
82 if (look_up_one_symbol (name
, &addr
) == 0)
85 *sym_addr
= (paddr_t
) (unsigned long) addr
;
89 /* Read SIZE bytes from the target process PH at address ADDR and copy
93 ps_pdread (gdb_ps_prochandle_t ph
, paddr_t addr
,
94 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
96 read_inferior_memory (addr
, buf
, size
);
100 /* Write SIZE bytes from BUF into the target process PH at address ADDR. */
103 ps_pdwrite (gdb_ps_prochandle_t ph
, paddr_t addr
,
104 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
106 return write_inferior_memory (addr
, buf
, size
);
109 /* Get the general registers of LWP LWPID within the target process PH
110 and store them in GREGSET. */
113 ps_lgetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, prgregset_t gregset
)
116 struct process_info
*process
;
117 struct thread_info
*reg_inferior
, *save_inferior
;
119 process
= (struct process_info
*) find_inferior_id (&all_processes
,
124 reg_inferior
= get_process_thread (process
);
125 save_inferior
= current_inferior
;
126 current_inferior
= reg_inferior
;
128 the_target
->fetch_registers (0);
129 gregset_info()->fill_function (gregset
);
131 current_inferior
= save_inferior
;
138 /* Set the general registers of LWP LWPID within the target process PH
142 ps_lsetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, const prgregset_t gregset
)
148 /* Get the floating-point registers of LWP LWPID within the target
149 process PH and store them in FPREGSET. */
152 ps_lgetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
153 gdb_prfpregset_t
*fpregset
)
159 /* Set the floating-point registers of LWP LWPID within the target
160 process PH from FPREGSET. */
163 ps_lsetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
164 const gdb_prfpregset_t
*fpregset
)
170 /* Return overall process id of the target PH. Special for GNU/Linux
171 -- not used on Solaris. */
174 ps_getpid (gdb_ps_prochandle_t ph
)
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