]>
Commit | Line | Data |
---|---|---|
0d62e5e8 | 1 | /* libthread_db helper functions for the remote server for GDB. |
4a94e368 | 2 | Copyright (C) 2002-2022 Free Software Foundation, Inc. |
0d62e5e8 DJ |
3 | |
4 | Contributed by MontaVista Software. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
0d62e5e8 DJ |
11 | (at your option) any later version. |
12 | ||
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
0d62e5e8 DJ |
20 | |
21 | #include "server.h" | |
22 | ||
23 | /* This file is currently tied to GNU/Linux. It should scale well to | |
30baf67b | 24 | another libthread_db implementation, with the appropriate gdbserver |
0d62e5e8 DJ |
25 | hooks, but for now this means we can use GNU/Linux's target data. */ |
26 | ||
27 | #include "linux-low.h" | |
28 | ||
0050a760 | 29 | #include "gdb_proc_service.h" |
0d62e5e8 DJ |
30 | |
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; | |
35 | ||
fd500816 DJ |
36 | #ifdef HAVE_LINUX_REGSETS |
37 | #define HAVE_REGSETS | |
38 | #endif | |
39 | ||
40 | #ifdef HAVE_REGSETS | |
0d62e5e8 | 41 | static struct regset_info * |
3aee8918 | 42 | gregset_info (void) |
0d62e5e8 DJ |
43 | { |
44 | int i = 0; | |
aa8d21c9 | 45 | const regs_info *regs_info = the_linux_target->get_regs_info (); |
3aee8918 | 46 | struct regsets_info *regsets_info = regs_info->regsets_info; |
0d62e5e8 | 47 | |
3aee8918 | 48 | while (regsets_info->regsets[i].size != -1) |
0d62e5e8 | 49 | { |
3aee8918 | 50 | if (regsets_info->regsets[i].type == GENERAL_REGS) |
0d62e5e8 DJ |
51 | break; |
52 | i++; | |
53 | } | |
54 | ||
3aee8918 | 55 | return ®sets_info->regsets[i]; |
0d62e5e8 | 56 | } |
0d62e5e8 DJ |
57 | #endif |
58 | ||
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. */ | |
62 | ||
63 | ps_err_e | |
64 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj, | |
0050a760 | 65 | const char *name, psaddr_t *sym_addr) |
0d62e5e8 DJ |
66 | { |
67 | CORE_ADDR addr; | |
68 | ||
9836d6ea | 69 | if (thread_db_look_up_one_symbol (name, &addr) == 0) |
0d62e5e8 DJ |
70 | return PS_NOSYM; |
71 | ||
0050a760 | 72 | *sym_addr = (psaddr_t) (unsigned long) addr; |
0d62e5e8 DJ |
73 | return PS_OK; |
74 | } | |
75 | ||
76 | /* Read SIZE bytes from the target process PH at address ADDR and copy | |
77 | them into BUF. */ | |
78 | ||
79 | ps_err_e | |
0050a760 | 80 | ps_pdread (gdb_ps_prochandle_t ph, psaddr_t addr, |
0d62e5e8 DJ |
81 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
82 | { | |
5b9ca4d4 PA |
83 | if (read_inferior_memory ((uintptr_t) addr, (gdb_byte *) buf, size) != 0) |
84 | return PS_ERR; | |
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 | { | |
4196ab2a | 94 | if (target_write_memory ((uintptr_t) addr, (const gdb_byte *) buf, size) |
b42945fd | 95 | != 0) |
ab290430 PA |
96 | return PS_ERR; |
97 | return PS_OK; | |
0d62e5e8 DJ |
98 | } |
99 | ||
100 | /* Get the general registers of LWP LWPID within the target process PH | |
101 | and store them in GREGSET. */ | |
102 | ||
103 | ps_err_e | |
104 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset) | |
105 | { | |
fd500816 | 106 | #ifdef HAVE_REGSETS |
54a0b537 | 107 | struct lwp_info *lwp; |
442ea881 | 108 | struct regcache *regcache; |
0d62e5e8 | 109 | |
f2907e49 | 110 | lwp = find_lwp_pid (ptid_t (lwpid)); |
54a0b537 | 111 | if (lwp == NULL) |
0d62e5e8 DJ |
112 | return PS_ERR; |
113 | ||
24583e45 TBA |
114 | scoped_restore_current_thread restore_thread; |
115 | switch_to_thread (get_lwp_thread (lwp)); | |
0bfdf32f | 116 | regcache = get_thread_regcache (current_thread, 1); |
442ea881 | 117 | gregset_info ()->fill_function (regcache, gregset); |
0d62e5e8 | 118 | |
0d62e5e8 | 119 | return PS_OK; |
fd500816 | 120 | #else |
0d62e5e8 | 121 | return PS_ERR; |
fd500816 | 122 | #endif |
0d62e5e8 DJ |
123 | } |
124 | ||
125 | /* Set the general registers of LWP LWPID within the target process PH | |
126 | from GREGSET. */ | |
127 | ||
128 | ps_err_e | |
129 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset) | |
130 | { | |
fd500816 | 131 | /* Unneeded. */ |
0d62e5e8 DJ |
132 | return PS_ERR; |
133 | } | |
134 | ||
135 | /* Get the floating-point registers of LWP LWPID within the target | |
136 | process PH and store them in FPREGSET. */ | |
137 | ||
138 | ps_err_e | |
749bab01 | 139 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prfpregset_t *fpregset) |
0d62e5e8 | 140 | { |
fd500816 | 141 | /* Unneeded. */ |
0d62e5e8 DJ |
142 | return PS_ERR; |
143 | } | |
144 | ||
145 | /* Set the floating-point registers of LWP LWPID within the target | |
146 | process PH from FPREGSET. */ | |
147 | ||
148 | ps_err_e | |
749bab01 | 149 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prfpregset_t *fpregset) |
0d62e5e8 | 150 | { |
fd500816 | 151 | /* Unneeded. */ |
0d62e5e8 DJ |
152 | return PS_ERR; |
153 | } | |
154 | ||
155 | /* Return overall process id of the target PH. Special for GNU/Linux | |
156 | -- not used on Solaris. */ | |
157 | ||
158 | pid_t | |
159 | ps_getpid (gdb_ps_prochandle_t ph) | |
160 | { | |
0bfdf32f | 161 | return pid_of (current_thread); |
0d62e5e8 | 162 | } |