Commit | Line | Data |
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0d62e5e8 | 1 | /* libthread_db helper functions for the remote server for GDB. |
0050a760 | 2 | Copyright (C) 2002, 2004, 2005, 2006 |
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 | |
6f0f660e EZ |
21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | |
0d62e5e8 DJ |
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 | ||
0050a760 | 32 | #include "gdb_proc_service.h" |
0d62e5e8 DJ |
33 | |
34 | typedef struct ps_prochandle *gdb_ps_prochandle_t; | |
35 | typedef void *gdb_ps_read_buf_t; | |
36 | typedef const void *gdb_ps_write_buf_t; | |
37 | typedef size_t gdb_ps_size_t; | |
38 | ||
fd500816 DJ |
39 | #ifdef HAVE_LINUX_REGSETS |
40 | #define HAVE_REGSETS | |
41 | #endif | |
42 | ||
43 | #ifdef HAVE_REGSETS | |
0d62e5e8 DJ |
44 | static struct regset_info * |
45 | gregset_info(void) | |
46 | { | |
47 | int i = 0; | |
48 | ||
49 | while (target_regsets[i].size != -1) | |
50 | { | |
51 | if (target_regsets[i].type == GENERAL_REGS) | |
52 | break; | |
53 | i++; | |
54 | } | |
55 | ||
56 | return &target_regsets[i]; | |
57 | } | |
0d62e5e8 DJ |
58 | #endif |
59 | ||
60 | /* Search for the symbol named NAME within the object named OBJ within | |
61 | the target process PH. If the symbol is found the address of the | |
62 | symbol is stored in SYM_ADDR. */ | |
63 | ||
64 | ps_err_e | |
65 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj, | |
0050a760 | 66 | const char *name, psaddr_t *sym_addr) |
0d62e5e8 DJ |
67 | { |
68 | CORE_ADDR addr; | |
69 | ||
70 | if (look_up_one_symbol (name, &addr) == 0) | |
71 | return PS_NOSYM; | |
72 | ||
0050a760 | 73 | *sym_addr = (psaddr_t) (unsigned long) addr; |
0d62e5e8 DJ |
74 | return PS_OK; |
75 | } | |
76 | ||
77 | /* Read SIZE bytes from the target process PH at address ADDR and copy | |
78 | them into BUF. */ | |
79 | ||
80 | ps_err_e | |
0050a760 | 81 | ps_pdread (gdb_ps_prochandle_t ph, psaddr_t addr, |
0d62e5e8 DJ |
82 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
83 | { | |
0050a760 | 84 | read_inferior_memory ((unsigned long) addr, buf, size); |
0d62e5e8 DJ |
85 | return PS_OK; |
86 | } | |
87 | ||
88 | /* Write SIZE bytes from BUF into the target process PH at address ADDR. */ | |
89 | ||
90 | ps_err_e | |
0050a760 | 91 | ps_pdwrite (gdb_ps_prochandle_t ph, psaddr_t addr, |
0d62e5e8 DJ |
92 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) |
93 | { | |
0050a760 | 94 | return write_inferior_memory ((unsigned long) addr, buf, size); |
0d62e5e8 DJ |
95 | } |
96 | ||
97 | /* Get the general registers of LWP LWPID within the target process PH | |
98 | and store them in GREGSET. */ | |
99 | ||
100 | ps_err_e | |
101 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset) | |
102 | { | |
fd500816 | 103 | #ifdef HAVE_REGSETS |
8643e2ad | 104 | struct process_info *process; |
0d62e5e8 | 105 | struct thread_info *reg_inferior, *save_inferior; |
0d62e5e8 | 106 | |
8643e2ad DJ |
107 | process = (struct process_info *) find_inferior_id (&all_processes, |
108 | lwpid); | |
109 | if (process == NULL) | |
0d62e5e8 DJ |
110 | return PS_ERR; |
111 | ||
8643e2ad | 112 | reg_inferior = get_process_thread (process); |
0d62e5e8 DJ |
113 | save_inferior = current_inferior; |
114 | current_inferior = reg_inferior; | |
115 | ||
fd500816 DJ |
116 | the_target->fetch_registers (0); |
117 | gregset_info()->fill_function (gregset); | |
0d62e5e8 DJ |
118 | |
119 | current_inferior = save_inferior; | |
120 | return PS_OK; | |
fd500816 | 121 | #else |
0d62e5e8 | 122 | return PS_ERR; |
fd500816 | 123 | #endif |
0d62e5e8 DJ |
124 | } |
125 | ||
126 | /* Set the general registers of LWP LWPID within the target process PH | |
127 | from GREGSET. */ | |
128 | ||
129 | ps_err_e | |
130 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset) | |
131 | { | |
fd500816 | 132 | /* Unneeded. */ |
0d62e5e8 DJ |
133 | return PS_ERR; |
134 | } | |
135 | ||
136 | /* Get the floating-point registers of LWP LWPID within the target | |
137 | process PH and store them in FPREGSET. */ | |
138 | ||
139 | ps_err_e | |
0050a760 | 140 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, void *fpregset) |
0d62e5e8 | 141 | { |
fd500816 | 142 | /* Unneeded. */ |
0d62e5e8 DJ |
143 | return PS_ERR; |
144 | } | |
145 | ||
146 | /* Set the floating-point registers of LWP LWPID within the target | |
147 | process PH from FPREGSET. */ | |
148 | ||
149 | ps_err_e | |
0050a760 | 150 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, void *fpregset) |
0d62e5e8 | 151 | { |
fd500816 | 152 | /* Unneeded. */ |
0d62e5e8 DJ |
153 | return PS_ERR; |
154 | } | |
155 | ||
156 | /* Return overall process id of the target PH. Special for GNU/Linux | |
157 | -- not used on Solaris. */ | |
158 | ||
159 | pid_t | |
160 | ps_getpid (gdb_ps_prochandle_t ph) | |
161 | { | |
162 | return ph->pid; | |
163 | } | |
164 | ||
165 |