diff options
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/Makefile | 2 | ||||
| -rw-r--r-- | stdlib/tst-getrandom2.c | 47 |
2 files changed, 49 insertions, 0 deletions
diff --git a/stdlib/Makefile b/stdlib/Makefile index 347491d..9c49205 100644 --- a/stdlib/Makefile +++ b/stdlib/Makefile @@ -278,6 +278,7 @@ tests := \ tst-cxa_atexit \ tst-environ \ tst-getrandom \ + tst-getrandom2 \ tst-labs \ tst-limits \ tst-llabs \ @@ -627,3 +628,4 @@ $(objpfx)tst-setcontext3.out: tst-setcontext3.sh $(objpfx)tst-setcontext3 $(objpfx)tst-qsort5: $(libm) $(objpfx)tst-concurrent-exit: $(shared-thread-library) $(objpfx)tst-concurrent-quick_exit: $(shared-thread-library) +$(objpfx)tst-getrandom2: $(shared-thread-library) diff --git a/stdlib/tst-getrandom2.c b/stdlib/tst-getrandom2.c new file mode 100644 index 0000000..f085b4b --- /dev/null +++ b/stdlib/tst-getrandom2.c @@ -0,0 +1,47 @@ +/* Tests for the getrandom functions. + Copyright (C) 2024 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 + <https://www.gnu.org/licenses/>. */ + +#include <gnu/lib-names.h> +#include <support/check.h> +#include <support/xdlfcn.h> +#include <support/xthread.h> +#include <sys/random.h> + +static __typeof (getrandom) *getrandom_ptr; + +static void * +threadfunc (void *ignored) +{ + char buffer; + TEST_COMPARE (getrandom_ptr (&buffer, 1, 0), 1); + return NULL; +} + +static int +do_test (void) +{ + /* Check if issuing getrandom in the secondary libc.so works when + the vDSO might be potentially used. */ + void *handle = xdlmopen (LM_ID_NEWLM, LIBC_SO, RTLD_NOW); + getrandom_ptr = xdlsym (handle, "getrandom"); + for (int i = 0; i < 1000; ++i) + xpthread_join (xpthread_create (NULL, threadfunc, NULL)); + return 0; +} + +#include <support/test-driver.c> |