Commit | Line | Data |
---|---|---|
0d62e5e8 | 1 | /* libthread_db helper functions for the remote server for GDB. |
fd500816 | 2 | Copyright 2002, 2004 |
0d62e5e8 DJ |
3 | Free Software Foundation, Inc. |
4 | ||
5 | Contributed by MontaVista Software. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
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. | |
13 | ||
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. | |
18 | ||
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., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
23 | ||
24 | #include "server.h" | |
25 | ||
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. */ | |
29 | ||
30 | #include "linux-low.h" | |
31 | ||
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 | |
35 | ||
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> | |
41 | #endif | |
42 | #endif | |
43 | ||
44 | #include "../gdb_proc_service.h" | |
45 | ||
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; | |
50 | ||
fd500816 DJ |
51 | #ifdef HAVE_LINUX_REGSETS |
52 | #define HAVE_REGSETS | |
53 | #endif | |
54 | ||
55 | #ifdef HAVE_REGSETS | |
0d62e5e8 DJ |
56 | static struct regset_info * |
57 | gregset_info(void) | |
58 | { | |
59 | int i = 0; | |
60 | ||
61 | while (target_regsets[i].size != -1) | |
62 | { | |
63 | if (target_regsets[i].type == GENERAL_REGS) | |
64 | break; | |
65 | i++; | |
66 | } | |
67 | ||
68 | return &target_regsets[i]; | |
69 | } | |
0d62e5e8 DJ |
70 | #endif |
71 | ||
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. */ | |
75 | ||
76 | ps_err_e | |
77 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj, | |
78 | const char *name, paddr_t *sym_addr) | |
79 | { | |
80 | CORE_ADDR addr; | |
81 | ||
82 | if (look_up_one_symbol (name, &addr) == 0) | |
83 | return PS_NOSYM; | |
84 | ||
85 | *sym_addr = (paddr_t) (unsigned long) addr; | |
86 | return PS_OK; | |
87 | } | |
88 | ||
89 | /* Read SIZE bytes from the target process PH at address ADDR and copy | |
90 | them into BUF. */ | |
91 | ||
92 | ps_err_e | |
93 | ps_pdread (gdb_ps_prochandle_t ph, paddr_t addr, | |
94 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) | |
95 | { | |
96 | read_inferior_memory (addr, buf, size); | |
97 | return PS_OK; | |
98 | } | |
99 | ||
100 | /* Write SIZE bytes from BUF into the target process PH at address ADDR. */ | |
101 | ||
102 | ps_err_e | |
103 | ps_pdwrite (gdb_ps_prochandle_t ph, paddr_t addr, | |
104 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) | |
105 | { | |
106 | return write_inferior_memory (addr, buf, size); | |
107 | } | |
108 | ||
109 | /* Get the general registers of LWP LWPID within the target process PH | |
110 | and store them in GREGSET. */ | |
111 | ||
112 | ps_err_e | |
113 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset) | |
114 | { | |
fd500816 | 115 | #ifdef HAVE_REGSETS |
0d62e5e8 | 116 | struct thread_info *reg_inferior, *save_inferior; |
0d62e5e8 DJ |
117 | |
118 | reg_inferior = (struct thread_info *) find_inferior_id (&all_threads, | |
119 | lwpid); | |
120 | if (reg_inferior == NULL) | |
121 | return PS_ERR; | |
122 | ||
123 | save_inferior = current_inferior; | |
124 | current_inferior = reg_inferior; | |
125 | ||
fd500816 DJ |
126 | the_target->fetch_registers (0); |
127 | gregset_info()->fill_function (gregset); | |
0d62e5e8 DJ |
128 | |
129 | current_inferior = save_inferior; | |
130 | return PS_OK; | |
fd500816 | 131 | #else |
0d62e5e8 | 132 | return PS_ERR; |
fd500816 | 133 | #endif |
0d62e5e8 DJ |
134 | } |
135 | ||
136 | /* Set the general registers of LWP LWPID within the target process PH | |
137 | from GREGSET. */ | |
138 | ||
139 | ps_err_e | |
140 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset) | |
141 | { | |
fd500816 | 142 | /* Unneeded. */ |
0d62e5e8 DJ |
143 | return PS_ERR; |
144 | } | |
145 | ||
146 | /* Get the floating-point registers of LWP LWPID within the target | |
147 | process PH and store them in FPREGSET. */ | |
148 | ||
149 | ps_err_e | |
150 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
151 | gdb_prfpregset_t *fpregset) | |
152 | { | |
fd500816 | 153 | /* Unneeded. */ |
0d62e5e8 DJ |
154 | return PS_ERR; |
155 | } | |
156 | ||
157 | /* Set the floating-point registers of LWP LWPID within the target | |
158 | process PH from FPREGSET. */ | |
159 | ||
160 | ps_err_e | |
161 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
162 | const gdb_prfpregset_t *fpregset) | |
163 | { | |
fd500816 | 164 | /* Unneeded. */ |
0d62e5e8 DJ |
165 | return PS_ERR; |
166 | } | |
167 | ||
168 | /* Return overall process id of the target PH. Special for GNU/Linux | |
169 | -- not used on Solaris. */ | |
170 | ||
171 | pid_t | |
172 | ps_getpid (gdb_ps_prochandle_t ph) | |
173 | { | |
174 | return ph->pid; | |
175 | } | |
176 | ||
177 |