diff options
Diffstat (limited to 'src/dso_utils.c')
-rw-r--r-- | src/dso_utils.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/src/dso_utils.c b/src/dso_utils.c deleted file mode 100644 index 8fdea11..0000000 --- a/src/dso_utils.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Copyright (C) 2012 Intel Corporation. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#define _GNU_SOURCE 1 -#include <stdio.h> -#include <stdlib.h> -#include <dlfcn.h> -#include "dso_utils.h" - -struct dso_handle { - void *handle; -}; - -/* Opens the named shared library */ -struct dso_handle * -dso_open(const char *path) -{ - struct dso_handle *h; - - h = calloc(1, sizeof(*h)); - if (!h) - return NULL; - - if (path) { - h->handle = dlopen(path, RTLD_LAZY|RTLD_LOCAL); - if (!h->handle) - goto error; - } - else - h->handle = RTLD_DEFAULT; - return h; - -error: - dso_close(h); - return NULL; -} - -/* Closes and disposed any allocated data */ -void -dso_close(struct dso_handle *h) -{ - if (!h) - return; - - if (h->handle) { - if (h->handle != RTLD_DEFAULT) - dlclose(h->handle); - h->handle = NULL; - } - free(h); -} - -/* Load symbol into the supplied location */ -static bool -get_symbol(struct dso_handle *h, void *func_vptr, const char *name) -{ - dso_generic_func func, * const func_ptr = func_vptr; - const char *error; - - dlerror(); - func = (dso_generic_func)dlsym(h->handle, name); - error = dlerror(); - if (error) { - fprintf(stderr, "error: failed to resolve %s(): %s\n", name, error); - return false; - } - *func_ptr = func; - return true; -} - -/* Loads symbols into the supplied vtable */ -bool -dso_get_symbols( - struct dso_handle *h, - void *vtable, - unsigned int vtable_length, - const struct dso_symbol *symbols -) -{ - const struct dso_symbol *s; - - for (s = symbols; s->name != NULL; s++) { - if (s->offset + sizeof(dso_generic_func) > vtable_length) - return false; - if (!get_symbol(h, ((char *)vtable) + s->offset, s->name)) - return false; - } - return true; -} |