1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/* Copyright 2013-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include "sym-file-loader.h"
void
gdb_add_symbol_file (void *addr, const char *file)
{
return;
}
void
gdb_remove_symbol_file (void *addr)
{
return;
}
/* Load a shared library without relying on the standard
loader to test GDB's commands for adding and removing
symbol files at runtime. */
int
main (int argc, const char *argv[])
{
const char *file = SHLIB_NAME;
struct library *lib;
char *text_addr = NULL;
int (*pbar) () = NULL;
int (*pfoo) (int) = NULL;
int (*pbaz) () = NULL;
int i;
lib = load_shlib (file);
if (lib == NULL)
return 1;
if (get_text_addr (lib, (void **) &text_addr) != 0)
return 1;
gdb_add_symbol_file (text_addr, file);
/* Call bar from SHLIB_NAME. */
if (lookup_function (lib, "bar", (void *) &pbar) != 0)
return 1;
(*pbar) ();
/* Call foo from SHLIB_NAME. */
if (lookup_function (lib, "foo", (void *) &pfoo) != 0)
return 1;
(*pfoo) (2);
/* Unload the library, invalidating all memory breakpoints. */
unload_shlib (lib);
/* Notify GDB to remove the symbol file. Also check that GDB
doesn't complain that it can't remove breakpoints from the
unmapped library. */
gdb_remove_symbol_file (text_addr);
/* Reload the library. */
lib = load_shlib (file); /* reload lib here */
if (lib == NULL)
return 1;
if (get_text_addr (lib, (void **) &text_addr) != 0)
return 1;
gdb_add_symbol_file (text_addr, file);
if (lookup_function (lib, "baz", (void *) &pbaz) != 0)
return 1;
(*pbaz) ();
return 0; /* end here */
}
|
