diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/Makefile | 12 | ||||
| -rw-r--r-- | elf/tst-tlsalign-lib.c | 6 | ||||
| -rw-r--r-- | elf/tst-tlsalign-static.c | 2 | ||||
| -rw-r--r-- | elf/tst-tlsalign.c | 85 |
4 files changed, 102 insertions, 3 deletions
diff --git a/elf/Makefile b/elf/Makefile index e852b5fcaa..34450eaa5b 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -121,7 +121,7 @@ tests = tst-tls1 tst-tls2 tst-tls9 tst-leaks1 \ tst-auxv tests-static = tst-tls1-static tst-tls2-static tst-stackguard1-static \ tst-leaks1-static tst-array1-static tst-array5-static \ - tst-ptrguard1-static tst-dl-iter-static + tst-ptrguard1-static tst-dl-iter-static tst-tlsalign-static ifeq (yes,$(build-shared)) tests-static += tst-tls9-static tst-tls9-static-ENV = \ @@ -146,7 +146,7 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \ tst-stackguard1 tst-addr1 tst-thrlock \ tst-unique1 tst-unique2 $(if $(CXX),tst-unique3 tst-unique4) \ tst-initorder tst-initorder2 tst-relsort1 tst-null-argv \ - tst-ptrguard1 + tst-ptrguard1 tst-tlsalign # reldep9 ifeq ($(build-hardcoded-path-in-tests),yes) tests += tst-dlopen-aout @@ -212,7 +212,8 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \ tst-initorder2a tst-initorder2b tst-initorder2c \ tst-initorder2d \ tst-relsort1mod1 tst-relsort1mod2 tst-array2dep \ - tst-array5dep tst-null-argv-lib + tst-array5dep tst-null-argv-lib \ + tst-tlsalign-lib ifeq (yes,$(have-protected-data)) modules-names += tst-protected1moda tst-protected1modb tests += tst-protected1a tst-protected1b @@ -525,6 +526,11 @@ $(objpfx)tst-initordera3.so: $(objpfx)tst-initorderb2.so $(objpfx)tst-initorderb $(objpfx)tst-initordera4.so: $(objpfx)tst-initordera3.so $(objpfx)tst-initorder: $(objpfx)tst-initordera4.so $(objpfx)tst-initordera1.so $(objpfx)tst-initorderb2.so $(objpfx)tst-null-argv: $(objpfx)tst-null-argv-lib.so +$(objpfx)tst-tlsalign: $(objpfx)tst-tlsalign-lib.so + +# BZ#18383: broken on at least ARM (both) and x86-64 (static only). +test-xfail-tst-tlsalign = yes +test-xfail-tst-tlsalign-static = yes tst-null-argv-ENV = LD_DEBUG=all LD_DEBUG_OUTPUT=$(objpfx)tst-null-argv.debug.out LDFLAGS-nodel2mod3.so = $(no-as-needed) diff --git a/elf/tst-tlsalign-lib.c b/elf/tst-tlsalign-lib.c new file mode 100644 index 0000000000..4371e581a6 --- /dev/null +++ b/elf/tst-tlsalign-lib.c @@ -0,0 +1,6 @@ +__thread int mod_tdata1 = 1; +__thread int mod_tdata2 __attribute__ ((aligned (0x10))) = 2; +__thread int mod_tdata3 __attribute__ ((aligned (0x1000))) = 4; +__thread int mod_tbss1; +__thread int mod_tbss2 __attribute__ ((aligned (0x10))); +__thread int mod_tbss3 __attribute__ ((aligned (0x1000))); diff --git a/elf/tst-tlsalign-static.c b/elf/tst-tlsalign-static.c new file mode 100644 index 0000000000..1671abf28e --- /dev/null +++ b/elf/tst-tlsalign-static.c @@ -0,0 +1,2 @@ +#define NO_LIB +#include "tst-tlsalign.c" diff --git a/elf/tst-tlsalign.c b/elf/tst-tlsalign.c new file mode 100644 index 0000000000..da04f577e2 --- /dev/null +++ b/elf/tst-tlsalign.c @@ -0,0 +1,85 @@ +/* Test for large alignment in TLS blocks, BZ#18383. + Copyright (C) 2015 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 <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +static __thread int tdata1 = 1; +static __thread int tdata2 __attribute__ ((aligned (0x10))) = 2; +static __thread int tdata3 __attribute__ ((aligned (0x1000))) = 4; +static __thread int tbss1; +static __thread int tbss2 __attribute__ ((aligned (0x10))); +static __thread int tbss3 __attribute__ ((aligned (0x1000))); + +#ifndef NO_LIB +extern __thread int mod_tdata1; +extern __thread int mod_tdata2; +extern __thread int mod_tdata3; +extern __thread int mod_tbss1; +extern __thread int mod_tbss2; +extern __thread int mod_tbss3; +#endif + +static int +test_one (const char *which, unsigned int alignment, int *var, int value) +{ + uintptr_t addr = (uintptr_t) var; + unsigned int misalign = addr & (alignment - 1); + + printf ("%s TLS address %p %% %u = %u\n", + which, (void *) var, alignment, misalign); + + int got = *var; + if (got != value) + { + printf ("%s value %d should be %d\n", which, got, value); + return 1; + } + + return misalign != 0; +} + +static int +do_test (void) +{ + int fail = 0; + + fail |= test_one ("tdata1", 4, &tdata1, 1); + fail |= test_one ("tdata2", 0x10, &tdata2, 2); + fail |= test_one ("tdata3", 0x1000, &tdata3, 4); + + fail |= test_one ("tbss1", 4, &tbss1, 0); + fail |= test_one ("tbss2", 0x10, &tbss2, 0); + fail |= test_one ("tbss3", 0x1000, &tbss3, 0); + +#ifndef NO_LIB + fail |= test_one ("mod_tdata1", 4, &mod_tdata1, 1); + fail |= test_one ("mod_tdata2", 0x10, &mod_tdata2, 2); + fail |= test_one ("mod_tdata3", 0x1000, &mod_tdata3, 4); + + fail |= test_one ("mod_tbss1", 4, &mod_tbss1, 0); + fail |= test_one ("mod_tbss2", 0x10, &mod_tbss2, 0); + fail |= test_one ("mod_tbss3", 0x1000, &mod_tbss3, 0); +#endif + + return fail ? EXIT_FAILURE : EXIT_SUCCESS; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |