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-rw-r--r--sysdeps/unix/sysv/linux/Makefile7
-rw-r--r--sysdeps/unix/sysv/linux/tst-align-clone.c95
-rw-r--r--sysdeps/unix/sysv/linux/tst-getpid1.c122
-rw-r--r--sysdeps/unix/sysv/linux/tst-getpid2.c2
4 files changed, 225 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 9f3718b663..c26a12fa11 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -196,5 +196,10 @@ CFLAGS-gai.c += -DNEED_NETLINK
endif
ifeq ($(subdir),nptl)
-tests += tst-setgetname
+tests += tst-setgetname tst-align-clone tst-getpid1 tst-getpid2
+
+# In this test, we create a CLONE_VM "thread" that shares TLS storage
+# with the original thread. Both threads then race in ld.so with lazy PLT
+# resolution. Avoid this race by disabling lazy binding. BZ #11214.
+tst-getpid2-ENV = LD_BIND_NOW=1
endif
diff --git a/sysdeps/unix/sysv/linux/tst-align-clone.c b/sysdeps/unix/sysv/linux/tst-align-clone.c
new file mode 100644
index 0000000000..626f605d21
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-align-clone.c
@@ -0,0 +1,95 @@
+/* Copyright (C) 2004-2015 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 <sched.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <tst-stack-align.h>
+#include <stackinfo.h>
+
+static int
+f (void *arg)
+{
+ bool ok = true;
+
+ puts ("in f");
+
+ if (TEST_STACK_ALIGN ())
+ ok = false;
+
+ return ok ? 0 : 1;
+}
+
+static int
+do_test (void)
+{
+ bool ok = true;
+
+ puts ("in main");
+
+ if (TEST_STACK_ALIGN ())
+ ok = false;
+
+#ifdef __ia64__
+ extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
+ size_t __child_stack_size, int __flags,
+ void *__arg, ...);
+ char st[256 * 1024];
+ pid_t p = __clone2 (f, st, sizeof (st), 0, 0);
+#else
+ char st[128 * 1024] __attribute__ ((aligned));
+# if _STACK_GROWS_DOWN
+ pid_t p = clone (f, st + sizeof (st), 0, 0);
+# elif _STACK_GROWS_UP
+ pid_t p = clone (f, st, 0, 0);
+# else
+# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
+# endif
+#endif
+ if (p == -1)
+ {
+ printf("clone failed: %m\n");
+ return 1;
+ }
+
+ int e;
+ if (waitpid (p, &e, __WCLONE) != p)
+ {
+ puts ("waitpid failed");
+ kill (p, SIGKILL);
+ return 1;
+ }
+ if (!WIFEXITED (e))
+ {
+ if (WIFSIGNALED (e))
+ printf ("died from signal %s\n", strsignal (WTERMSIG (e)));
+ else
+ puts ("did not terminate correctly");
+ return 1;
+ }
+ if (WEXITSTATUS (e) != 0)
+ ok = false;
+
+ return ok ? 0 : 1;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/unix/sysv/linux/tst-getpid1.c b/sysdeps/unix/sysv/linux/tst-getpid1.c
new file mode 100644
index 0000000000..253ebf2e15
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-getpid1.c
@@ -0,0 +1,122 @@
+#include <sched.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stackinfo.h>
+
+#ifndef TEST_CLONE_FLAGS
+#define TEST_CLONE_FLAGS 0
+#endif
+
+static int sig;
+
+static int
+f (void *a)
+{
+ puts ("in f");
+ union sigval sival;
+ sival.sival_int = getpid ();
+ printf ("pid = %d\n", sival.sival_int);
+ if (sigqueue (getppid (), sig, sival) != 0)
+ return 1;
+ return 0;
+}
+
+
+static int
+do_test (void)
+{
+ int mypid = getpid ();
+
+ sig = SIGRTMIN;
+ sigset_t ss;
+ sigemptyset (&ss);
+ sigaddset (&ss, sig);
+ if (sigprocmask (SIG_BLOCK, &ss, NULL) != 0)
+ {
+ printf ("sigprocmask failed: %m\n");
+ return 1;
+ }
+
+#ifdef __ia64__
+ extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
+ size_t __child_stack_size, int __flags,
+ void *__arg, ...);
+ char st[256 * 1024] __attribute__ ((aligned));
+ pid_t p = __clone2 (f, st, sizeof (st), TEST_CLONE_FLAGS, 0);
+#else
+ char st[128 * 1024] __attribute__ ((aligned));
+# if _STACK_GROWS_DOWN
+ pid_t p = clone (f, st + sizeof (st), TEST_CLONE_FLAGS, 0);
+# elif _STACK_GROWS_UP
+ pid_t p = clone (f, st, TEST_CLONE_FLAGS, 0);
+# else
+# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
+# endif
+#endif
+ if (p == -1)
+ {
+ printf("clone failed: %m\n");
+ return 1;
+ }
+ printf ("new thread: %d\n", (int) p);
+
+ siginfo_t si;
+ do
+ if (sigwaitinfo (&ss, &si) < 0)
+ {
+ printf("sigwaitinfo failed: %m\n");
+ kill (p, SIGKILL);
+ return 1;
+ }
+ while (si.si_signo != sig || si.si_code != SI_QUEUE);
+
+ int e;
+ if (waitpid (p, &e, __WCLONE) != p)
+ {
+ puts ("waitpid failed");
+ kill (p, SIGKILL);
+ return 1;
+ }
+ if (!WIFEXITED (e))
+ {
+ if (WIFSIGNALED (e))
+ printf ("died from signal %s\n", strsignal (WTERMSIG (e)));
+ else
+ puts ("did not terminate correctly");
+ return 1;
+ }
+ if (WEXITSTATUS (e) != 0)
+ {
+ printf ("exit code %d\n", WEXITSTATUS (e));
+ return 1;
+ }
+
+ if (si.si_int != (int) p)
+ {
+ printf ("expected PID %d, got si_int %d\n", (int) p, si.si_int);
+ kill (p, SIGKILL);
+ return 1;
+ }
+
+ if (si.si_pid != p)
+ {
+ printf ("expected PID %d, got si_pid %d\n", (int) p, (int) si.si_pid);
+ kill (p, SIGKILL);
+ return 1;
+ }
+
+ if (getpid () != mypid)
+ {
+ puts ("my PID changed");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/unix/sysv/linux/tst-getpid2.c b/sysdeps/unix/sysv/linux/tst-getpid2.c
new file mode 100644
index 0000000000..fc98cb60db
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-getpid2.c
@@ -0,0 +1,2 @@
+#define TEST_CLONE_FLAGS CLONE_VM
+#include "tst-getpid1.c"
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 23:37:17 +0000