diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86/tst-cet-property-2.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/x86/tst-cet-property-2.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/tst-cet-property-2.c b/sysdeps/unix/sysv/linux/x86/tst-cet-property-2.c new file mode 100644 index 0000000000..0531074ceb --- /dev/null +++ b/sysdeps/unix/sysv/linux/x86/tst-cet-property-2.c @@ -0,0 +1,63 @@ +/* Test CET property note parser for [BZ #23467]. + Copyright (C) 2018 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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <signal.h> +#include <support/check.h> + +extern void bar (void); + +void +__attribute__ ((noclone, noinline)) +test (void (*func_p) (void)) +{ + func_p (); +} + +/* bar contains an IBT violation if it is called indirectly via a + function pointer. On IBT machines, it should lead to segfault + unless IBT is disabled by error. */ + +static void +sig_handler (int signo) +{ + exit (EXIT_SUCCESS); +} + +static int +do_test (void) +{ + char buf[20]; + + if (scanf ("%20s", buf) != 1) + FAIL_UNSUPPORTED ("IBT not supported"); + + if (strcmp (buf, "IBT") != 0) + FAIL_UNSUPPORTED ("IBT not supported"); + + TEST_VERIFY_EXIT (signal (SIGSEGV, &sig_handler) != SIG_ERR); + + /* Call bar via a function pointer to force an IBT violation. */ + test (bar); + + return EXIT_FAILURE; +} + +#include <support/test-driver.c> |