diff options
| -rw-r--r-- | elf/Makefile | 9 | ||||
| -rw-r--r-- | elf/tst-dlopenfail-2.c | 59 | ||||
| -rw-r--r-- | elf/tst-dlopenfailmod3.c | 17 |
3 files changed, 83 insertions, 2 deletions
diff --git a/elf/Makefile b/elf/Makefile index 9b09f09..6c62ed6 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -200,7 +200,8 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \ tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note \ tst-unwind-ctor tst-unwind-main tst-audit13 \ tst-sonamemove-link tst-sonamemove-dlopen tst-dlopen-tlsmodid \ - tst-dlopen-self tst-auditmany tst-initfinilazyfail tst-dlopenfail + tst-dlopen-self tst-auditmany tst-initfinilazyfail tst-dlopenfail \ + tst-dlopenfail-2 # reldep9 tests-internal += loadtest unload unload2 circleload1 \ neededtest neededtest2 neededtest3 neededtest4 \ @@ -311,7 +312,7 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \ tst-auditmanymod7 tst-auditmanymod8 tst-auditmanymod9 \ tst-initlazyfailmod tst-finilazyfailmod \ tst-dlopenfailmod1 tst-dlopenfaillinkmod tst-dlopenfailmod2 \ - tst-ldconfig-ld-mod + tst-dlopenfailmod3 tst-ldconfig-ld-mod # Most modules build with _ISOMAC defined, but those filtered out # depend on internal headers. modules-names-tests = $(filter-out ifuncmod% tst-libc_dlvsym-dso tst-tlsmod%,\ @@ -1645,6 +1646,10 @@ $(objpfx)tst-dlopenfailmod1.so: \ $(shared-thread-library) $(objpfx)tst-dlopenfaillinkmod.so LDFLAGS-tst-dlopenfaillinkmod.so = -Wl,-soname,tst-dlopenfail-missingmod.so $(objpfx)tst-dlopenfailmod2.so: $(shared-thread-library) +$(objpfx)tst-dlopenfail-2: $(libdl) +$(objpfx)tst-dlopenfail.out: \ + $(objpfx)tst-dlopenfailmod1.so $(objpfx)tst-dlopenfailmod2.so \ + $(objpfx)tst-dlopenfailmod3.so $(objpfx)tst-dlopen-nodelete-reloc: $(libdl) $(objpfx)tst-dlopen-nodelete-reloc.out: \ diff --git a/elf/tst-dlopenfail-2.c b/elf/tst-dlopenfail-2.c new file mode 100644 index 0000000..35bbde6 --- /dev/null +++ b/elf/tst-dlopenfail-2.c @@ -0,0 +1,59 @@ +/* Test unrelated dlopen after dlopen failure involving NODELETE. + Copyright (C) 2019-2020 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 <dlfcn.h> +#include <errno.h> +#include <gnu/lib-names.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <support/check.h> +#include <support/xdlfcn.h> + +static int +do_test (void) +{ + /* This test uses libpthread as the canonical NODELETE module. If + libpthread is no longer NODELETE because it has been merged into + libc, the test needs to be updated. */ + TEST_VERIFY (dlsym (NULL, "pthread_create") == NULL); + + /* This is expected to fail because of the missing dependency. */ + puts ("info: attempting to load tst-dlopenfailmod1.so"); + TEST_VERIFY (dlopen ("tst-dlopenfailmod1.so", RTLD_LAZY) == NULL); + const char *message = dlerror (); + TEST_COMPARE_STRING (message, + "tst-dlopenfail-missingmod.so:" + " cannot open shared object file:" + " No such file or directory"); + + /* Open a small shared object. With a dangling GL (dl_initfirst) + pointer, this is likely to crash because there is no longer any + mapped text segment there (bug 25396). */ + + puts ("info: attempting to load tst-dlopenfailmod3.so"); + xdlclose (xdlopen ("tst-dlopenfailmod3.so", RTLD_NOW)); + + return 0; +} + +/* Do not perturb the dangling link map. With M_PERTURB, the link map + appears to have l_init_called set, so there are no constructor + calls and no crashes. */ +#define TEST_NO_MALLOPT +#include <support/test-driver.c> diff --git a/elf/tst-dlopenfailmod3.c b/elf/tst-dlopenfailmod3.c new file mode 100644 index 0000000..636e971 --- /dev/null +++ b/elf/tst-dlopenfailmod3.c @@ -0,0 +1,17 @@ +/* Empty module for the tst-dlopenfail-2 test. + Copyright (C) 2020 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/>. */ |