summaryrefslogtreecommitdiff
path: root/test/nptl/tst-tls5.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/nptl/tst-tls5.c')
-rw-r--r--test/nptl/tst-tls5.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/test/nptl/tst-tls5.c b/test/nptl/tst-tls5.c
new file mode 100644
index 000000000..476f09aa1
--- /dev/null
+++ b/test/nptl/tst-tls5.c
@@ -0,0 +1,119 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* Check alignment, overlapping and layout of TLS variables. */
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <sys/param.h>
+
+#include "tst-tls5.h"
+
+#ifdef TLS_REGISTER
+
+struct tls_obj tls_registry[64];
+
+static int
+tls_addr_cmp (const void *a, const void *b)
+{
+ if (((struct tls_obj *)a)->addr < ((struct tls_obj *)b)->addr)
+ return -1;
+ if (((struct tls_obj *)a)->addr > ((struct tls_obj *)b)->addr)
+ return 1;
+ return 0;
+}
+
+static int
+do_test (void)
+{
+ size_t cnt, i;
+ int res = 0;
+ uintptr_t min_addr = ~(uintptr_t) 0, max_addr = 0;
+
+ for (cnt = 0; tls_registry[cnt].name; ++cnt);
+ tls_registry[cnt].name = NULL;
+ tls_registry[cnt].addr = (uintptr_t) pthread_self ();
+ tls_registry[cnt].size = sizeof (struct pthread);
+ tls_registry[cnt++].align = __alignof__ (struct pthread);
+
+ qsort (tls_registry, cnt, sizeof (struct tls_obj), tls_addr_cmp);
+
+ for (i = 0; i < cnt; ++i)
+ {
+ printf ("%s%s = %p, size %zd, align %zd",
+ tls_registry[i].name ? "&" : "",
+ tls_registry[i].name ?: "pthread_self ()",
+ (void *) tls_registry[i].addr,
+ tls_registry[i].size, tls_registry[i].align);
+ if (tls_registry[i].addr & (tls_registry[i].align - 1))
+ {
+ fputs (", WRONG ALIGNMENT", stdout);
+ res = 1;
+ }
+ if (i > 0
+ && (tls_registry[i - 1].addr + tls_registry[i - 1].size
+ > tls_registry[i].addr))
+ {
+ fputs (", ADDRESS OVERLAP", stdout);
+ res = 1;
+ }
+ puts ("");
+ if (tls_registry[i].name)
+ {
+ min_addr = MIN (tls_registry[i].addr, min_addr);
+ max_addr = MAX (tls_registry[i].addr + tls_registry[i].size,
+ max_addr);
+ }
+ }
+
+ if (cnt > 1)
+ {
+#if defined(TLS_TCB_AT_TP)
+ if (tls_registry[cnt - 1].name)
+ {
+ puts ("pthread_self () not larger than all TLS addresses");
+ res = 1;
+ }
+ else
+ max_addr = MAX (tls_registry[cnt - 1].addr, max_addr);
+#elif defined(TLS_DTV_AT_TP)
+ if (tls_registry[0].name)
+ {
+ puts ("pthread_self () not smaller than all TLS addresses");
+ res = 1;
+ }
+#else
+ abort ();
+#endif
+ printf ("Initial TLS used block size %zd\n",
+ (size_t) (max_addr - min_addr));
+ }
+ return res;
+}
+
+#define TEST_FUNCTION do_test ()
+
+#else
+
+#define TEST_FUNCTION 0
+
+#endif
+
+#include "../test-skeleton.c"