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author | Paul Pluzhnikov <ppluzhnikov@google.com> | 2017-09-20 19:37:45 -0700 |
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committer | Paul Pluzhnikov <ppluzhnikov@google.com> | 2017-09-20 19:37:45 -0700 |
commit | 1cc9e59a93636be6772ad423f7895e7ab52e4be7 (patch) | |
tree | 5dac1607f03996e79f1444106b373144425fc6dd /support/xdlfcn.c | |
parent | ae8372d7e4c44f6839aa3d851d4d0cb486b81cd5 (diff) | |
download | glibc-1cc9e59a93636be6772ad423f7895e7ab52e4be7.zip glibc-1cc9e59a93636be6772ad423f7895e7ab52e4be7.tar.gz glibc-1cc9e59a93636be6772ad423f7895e7ab52e4be7.tar.bz2 |
Implement xdlopen, xdlsym and xdlclose routines which terminate test
program with appropriate message if the corresponding dlfcn.h routine
returns an error.
Use them in stdlib/tst-tls-atexit.c
Diffstat (limited to 'support/xdlfcn.c')
-rw-r--r-- | support/xdlfcn.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/support/xdlfcn.c b/support/xdlfcn.c new file mode 100644 index 0000000..6e39799 --- /dev/null +++ b/support/xdlfcn.c @@ -0,0 +1,58 @@ +/* Support functionality for using dlopen/dlclose/dlsym. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <support/check.h> +#include <support/xdlfcn.h> + +void * +xdlopen (const char *filename, int flags) +{ + void *dso = dlopen (filename, flags); + + if (dso == NULL) + FAIL_EXIT1 ("error: dlopen: %s\n", dlerror ()); + + /* Clear any errors. */ + dlerror (); + + return dso; +} + +void * +xdlsym (void *handle, const char *symbol) +{ + void *sym = dlsym (handle, symbol); + + if (sym == NULL) + FAIL_EXIT1 ("error: dlsym: %s\n", dlerror ()); + + /* Clear any errors. */ + dlerror (); + + return sym; +} + +void +xdlclose (void *handle) +{ + if (dlclose (handle) != 0) + FAIL_EXIT1 ("error: dlclose: %s\n", dlerror ()); + + /* Clear any errors. */ + dlerror (); +} |