diff options
Diffstat (limited to 'REORG.TODO/elf/tst-latepthread.c')
-rw-r--r-- | REORG.TODO/elf/tst-latepthread.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/REORG.TODO/elf/tst-latepthread.c b/REORG.TODO/elf/tst-latepthread.c new file mode 100644 index 0000000000..ca2f82243d --- /dev/null +++ b/REORG.TODO/elf/tst-latepthread.c @@ -0,0 +1,104 @@ +/* Test that loading libpthread does not break ld.so exceptions (bug 16628). + Copyright (C) 2016-2017 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 <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> |