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-rw-r--r--elf/tst-latepthread.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/elf/tst-latepthread.c b/elf/tst-latepthread.c
new file mode 100644
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+++ b/elf/tst-latepthread.c
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+/* Test that loading libpthread does not break ld.so exceptions (bug 16628).
+ Copyright (C) 2016-2018 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 <dlfcn.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static int
+do_test (void)
+{
+ void *handle = dlopen ("tst-latepthreadmod.so", RTLD_LOCAL | RTLD_LAZY);
+ if (handle == NULL)
+ {
+ printf ("error: dlopen failed: %s\n", dlerror ());
+ return 1;
+ }
+ void *ptr = dlsym (handle, "trigger_dynlink_failure");
+ if (ptr == NULL)
+ {
+ printf ("error: dlsym failed: %s\n", dlerror ());
+ return 1;
+ }
+ int (*func) (void) = ptr;
+
+ /* Run the actual test in a subprocess, to capture the error. */
+ int fds[2];
+ if (pipe (fds) < 0)
+ {
+ printf ("error: pipe: %m\n");
+ return 1;
+ }
+ pid_t pid = fork ();
+ if (pid < 0)
+ {
+ printf ("error: fork: %m\n");
+ return 1;
+ }
+ else if (pid == 0)
+ {
+ if (dup2 (fds[1], STDERR_FILENO) < 0)
+ _exit (2);
+ /* Trigger an abort. */
+ func ();
+ _exit (3);
+ }
+ /* NB: This assumes that the abort message is so short that the pipe
+ does not block. */
+ int status;
+ if (waitpid (pid, &status, 0) < 0)
+ {
+ printf ("error: waitpid: %m\n");
+ return 1;
+ }
+
+ /* Check the printed error message. */
+ if (close (fds[1]) < 0)
+ {
+ printf ("error: close: %m\n");
+ return 1;
+ }
+ char buf[512];
+ /* Leave room for the NUL terminator. */
+ ssize_t ret = read (fds[0], buf, sizeof (buf) - 1);
+ if (ret < 0)
+ {
+ printf ("error: read: %m\n");
+ return 1;
+ }
+ if (ret > 0 && buf[ret - 1] == '\n')
+ --ret;
+ buf[ret] = '\0';
+ printf ("info: exit status: %d, message: %s\n", status, buf);
+ if (strstr (buf, "undefined symbol: this_function_is_not_defined") == NULL)
+ {
+ printf ("error: message does not contain expected string\n");
+ return 1;
+ }
+ if (!WIFEXITED (status) || WEXITSTATUS (status) != 127)
+ {
+ printf ("error: unexpected process exit status\n");
+ return 1;
+ }
+ return 0;
+}
+
+#include <support/test-driver.c>