2 * Copyright (C) 2012 Intel Corporation. All Rights Reserved.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 #include "dso_utils.h"
35 /* Opens the named shared library */
37 dso_open(const char *path)
41 h = calloc(1, sizeof(*h));
46 h->handle = dlopen(path, RTLD_LAZY|RTLD_LOCAL);
51 h->handle = RTLD_DEFAULT;
59 /* Closes and disposed any allocated data */
61 dso_close(struct dso_handle *h)
67 if (h->handle != RTLD_DEFAULT)
74 /* Load symbol into the supplied location */
76 get_symbol(struct dso_handle *h, void *func_vptr, const char *name)
78 dso_generic_func func, * const func_ptr = func_vptr;
82 func = (dso_generic_func)dlsym(h->handle, name);
85 fprintf(stderr, "error: failed to resolve %s(): %s\n", name, error);
92 /* Loads symbols into the supplied vtable */
97 unsigned int vtable_length,
98 const struct dso_symbol *symbols
101 const struct dso_symbol *s;
103 for (s = symbols; s->name != NULL; s++) {
104 if (s->offset + sizeof(dso_generic_func) > vtable_length)
106 if (!get_symbol(h, ((char *)vtable) + s->offset, s->name))