glibc/nptl/tst-thread_local1.cc
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
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
2019-09-07 02:43:31 -07:00

200 lines
4.8 KiB
C++

/* Test basic thread_local support.
Copyright (C) 2015-2019 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 <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <string.h>
#include <functional>
#include <string>
#include <thread>
struct counter
{
int constructed {};
int destructed {};
void reset ();
};
void
counter::reset ()
{
constructed = 0;
destructed = 0;
}
static std::string
to_string (const counter &c)
{
char buf[128];
snprintf (buf, sizeof (buf), "%d/%d",
c.constructed, c.destructed);
return buf;
}
template <counter *Counter>
struct counting
{
counting () __attribute__ ((noinline, noclone));
~counting () __attribute__ ((noinline, noclone));
void operation () __attribute__ ((noinline, noclone));
};
template<counter *Counter>
__attribute__ ((noinline, noclone))
counting<Counter>::counting ()
{
++Counter->constructed;
}
template<counter *Counter>
__attribute__ ((noinline, noclone))
counting<Counter>::~counting ()
{
++Counter->destructed;
}
template<counter *Counter>
void __attribute__ ((noinline, noclone))
counting<Counter>::operation ()
{
// Optimization barrier.
asm ("");
}
static counter counter_static;
static counter counter_anonymous_namespace;
static counter counter_extern;
static counter counter_function_local;
static bool errors (false);
static std::string
all_counters ()
{
return to_string (counter_static)
+ ' ' + to_string (counter_anonymous_namespace)
+ ' ' + to_string (counter_extern)
+ ' ' + to_string (counter_function_local);
}
static void
check_counters (const char *name, const char *expected)
{
std::string actual{all_counters ()};
if (actual != expected)
{
printf ("error: %s: (%s) != (%s)\n",
name, actual.c_str (), expected);
errors = true;
}
}
static void
reset_all ()
{
counter_static.reset ();
counter_anonymous_namespace.reset ();
counter_extern.reset ();
counter_function_local.reset ();
}
static thread_local counting<&counter_static> counting_static;
namespace {
thread_local counting<&counter_anonymous_namespace>
counting_anonymous_namespace;
}
extern thread_local counting<&counter_extern> counting_extern;
thread_local counting<&counter_extern> counting_extern;
static void *
thread_without_access (void *)
{
return nullptr;
}
static void *
thread_with_access (void *)
{
thread_local counting<&counter_function_local> counting_function_local;
counting_function_local.operation ();
check_counters ("early in thread_with_access", "0/0 0/0 0/0 1/0");
counting_static.operation ();
counting_anonymous_namespace.operation ();
counting_extern.operation ();
check_counters ("in thread_with_access", "1/0 1/0 1/0 1/0");
return nullptr;
}
static int
do_test (void)
{
std::function<void (void *(void *))> do_pthread =
[](void *(func) (void *))
{
pthread_t thr;
int ret = pthread_create (&thr, nullptr, func, nullptr);
if (ret != 0)
{
errno = ret;
printf ("error: pthread_create: %m\n");
errors = true;
return;
}
ret = pthread_join (thr, nullptr);
if (ret != 0)
{
errno = ret;
printf ("error: pthread_join: %m\n");
errors = true;
return;
}
};
std::function<void (void *(void *))> do_std_thread =
[](void *(func) (void *))
{
std::thread thr{[func] {func (nullptr);}};
thr.join ();
};
std::array<std::pair<const char *, std::function<void (void *(void *))>>, 2>
do_thread_X
{{
{"pthread_create", do_pthread},
{"std::thread", do_std_thread},
}};
for (auto do_thread : do_thread_X)
{
printf ("info: testing %s\n", do_thread.first);
check_counters ("initial", "0/0 0/0 0/0 0/0");
do_thread.second (thread_without_access);
check_counters ("after thread_without_access", "0/0 0/0 0/0 0/0");
reset_all ();
do_thread.second (thread_with_access);
check_counters ("after thread_with_access", "1/1 1/1 1/1 1/1");
reset_all ();
}
return errors;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"