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Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
200 lines
4.8 KiB
C++
200 lines
4.8 KiB
C++
/* Test basic thread_local support.
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Copyright (C) 2015-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <string.h>
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#include <functional>
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#include <string>
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#include <thread>
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struct counter
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{
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int constructed {};
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int destructed {};
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void reset ();
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};
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void
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counter::reset ()
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{
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constructed = 0;
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destructed = 0;
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}
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static std::string
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to_string (const counter &c)
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{
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char buf[128];
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snprintf (buf, sizeof (buf), "%d/%d",
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c.constructed, c.destructed);
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return buf;
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}
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template <counter *Counter>
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struct counting
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{
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counting () __attribute__ ((noinline, noclone));
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~counting () __attribute__ ((noinline, noclone));
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void operation () __attribute__ ((noinline, noclone));
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};
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template<counter *Counter>
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__attribute__ ((noinline, noclone))
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counting<Counter>::counting ()
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{
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++Counter->constructed;
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}
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template<counter *Counter>
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__attribute__ ((noinline, noclone))
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counting<Counter>::~counting ()
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{
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++Counter->destructed;
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}
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template<counter *Counter>
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void __attribute__ ((noinline, noclone))
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counting<Counter>::operation ()
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{
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// Optimization barrier.
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asm ("");
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}
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static counter counter_static;
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static counter counter_anonymous_namespace;
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static counter counter_extern;
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static counter counter_function_local;
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static bool errors (false);
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static std::string
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all_counters ()
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{
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return to_string (counter_static)
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+ ' ' + to_string (counter_anonymous_namespace)
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+ ' ' + to_string (counter_extern)
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+ ' ' + to_string (counter_function_local);
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}
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static void
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check_counters (const char *name, const char *expected)
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{
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std::string actual{all_counters ()};
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if (actual != expected)
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{
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printf ("error: %s: (%s) != (%s)\n",
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name, actual.c_str (), expected);
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errors = true;
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}
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}
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static void
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reset_all ()
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{
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counter_static.reset ();
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counter_anonymous_namespace.reset ();
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counter_extern.reset ();
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counter_function_local.reset ();
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}
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static thread_local counting<&counter_static> counting_static;
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namespace {
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thread_local counting<&counter_anonymous_namespace>
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counting_anonymous_namespace;
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}
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extern thread_local counting<&counter_extern> counting_extern;
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thread_local counting<&counter_extern> counting_extern;
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static void *
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thread_without_access (void *)
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{
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return nullptr;
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}
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static void *
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thread_with_access (void *)
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{
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thread_local counting<&counter_function_local> counting_function_local;
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counting_function_local.operation ();
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check_counters ("early in thread_with_access", "0/0 0/0 0/0 1/0");
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counting_static.operation ();
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counting_anonymous_namespace.operation ();
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counting_extern.operation ();
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check_counters ("in thread_with_access", "1/0 1/0 1/0 1/0");
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return nullptr;
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}
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static int
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do_test (void)
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{
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std::function<void (void *(void *))> do_pthread =
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[](void *(func) (void *))
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{
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pthread_t thr;
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int ret = pthread_create (&thr, nullptr, func, nullptr);
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if (ret != 0)
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{
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errno = ret;
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printf ("error: pthread_create: %m\n");
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errors = true;
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return;
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}
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ret = pthread_join (thr, nullptr);
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if (ret != 0)
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{
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errno = ret;
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printf ("error: pthread_join: %m\n");
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errors = true;
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return;
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}
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};
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std::function<void (void *(void *))> do_std_thread =
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[](void *(func) (void *))
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{
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std::thread thr{[func] {func (nullptr);}};
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thr.join ();
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};
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std::array<std::pair<const char *, std::function<void (void *(void *))>>, 2>
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do_thread_X
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{{
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{"pthread_create", do_pthread},
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{"std::thread", do_std_thread},
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}};
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for (auto do_thread : do_thread_X)
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{
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printf ("info: testing %s\n", do_thread.first);
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check_counters ("initial", "0/0 0/0 0/0 0/0");
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do_thread.second (thread_without_access);
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check_counters ("after thread_without_access", "0/0 0/0 0/0 0/0");
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reset_all ();
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do_thread.second (thread_with_access);
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check_counters ("after thread_with_access", "1/1 1/1 1/1 1/1");
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reset_all ();
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}
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return errors;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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