diff options
Diffstat (limited to 'dlopen-test.c')
-rw-r--r-- | dlopen-test.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/dlopen-test.c b/dlopen-test.c new file mode 100644 index 0000000..ce0abe7 --- /dev/null +++ b/dlopen-test.c @@ -0,0 +1,70 @@ +/* vim: set expandtab tabstop=4 softtabstop=4 shiftwidth=4: */ +/* + * Copyright © 2016 Intel Corporation + * + * 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, sublicense, + * 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + */ + +#include <stdio.h> +#include <stdlib.h> + +#include "build-id.h" + +int +main(int argc, char *argv[]) +{ + const struct build_id_note * + (*build_id_find_nhdr_by_name)(const char *name); + const struct build_id_note * + (*build_id_find_nhdr_by_symbol)(const void *symbol); + ElfW(Word) + (*build_id_length)(const struct build_id_note *note); + const uint8_t * + (*build_id_data)(const struct build_id_note *note); + + void *handle = dlopen("./libbuild-id.so", RTLD_LAZY); + if (!handle) + return -1; + + build_id_find_nhdr_by_name = dlsym(handle, "build_id_find_nhdr_by_name"); + build_id_find_nhdr_by_symbol = dlsym(handle, "build_id_find_nhdr_by_symbol"); + build_id_length = dlsym(handle, "build_id_length"); + build_id_data = dlsym(handle, "build_id_data"); + + if (dlerror()) + return -1; + + const struct build_id_note *note = + build_id_find_nhdr_by_name("./libbuild-id.so"); + if (!note) + return -1; + + ElfW(Word) len = build_id_length(note); + + const uint8_t *build_id = build_id_data(note); + + printf("Build ID: "); + for (ElfW(Word) i = 0; i < len; i++) { + printf("%02x", build_id[i]); + } + printf("\n"); + dlclose(handle); + return 0; +} |