| commit 17432d7150bdab3bce2ea66c70ad6c920f54077a |
| Author: Florian Weimer <fweimer@redhat.com> |
| Date: Fri Jun 28 10:15:30 2019 +0200 |
| |
| support: Add xdlvsym function |
| |
| diff --git a/support/xdlfcn.c b/support/xdlfcn.c |
| index f34bb059c00f27f7..b4a6b85649d181c8 100644 |
| |
| |
| @@ -48,6 +48,26 @@ xdlsym (void *handle, const char *symbol) |
| return sym; |
| } |
| |
| +void * |
| +xdlvsym (void *handle, const char *symbol, const char *version) |
| +{ |
| + /* Clear any pending errors. */ |
| + dlerror (); |
| + |
| + void *sym = dlvsym (handle, symbol, version); |
| + |
| + if (sym == NULL) |
| + { |
| + const char *error = dlerror (); |
| + if (error != NULL) |
| + FAIL_EXIT1 ("error: dlvsym: %s\n", error); |
| + /* If there was no error, we found a NULL symbol. Return the |
| + NULL value in this case. */ |
| + } |
| + |
| + return sym; |
| +} |
| + |
| void |
| xdlclose (void *handle) |
| { |
| diff --git a/support/xdlfcn.h b/support/xdlfcn.h |
| index 5ab7494e70924f52..ab1cbb3cb9bb1cc7 100644 |
| |
| |
| @@ -26,6 +26,7 @@ __BEGIN_DECLS |
| /* Each of these terminates process on failure with relevant error message. */ |
| void *xdlopen (const char *filename, int flags); |
| void *xdlsym (void *handle, const char *symbol); |
| +void *xdlvsym (void *handle, const char *symbol, const char *version); |
| void xdlclose (void *handle); |
| |
| |