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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:09:42 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:09:42 +0000
commit7d58530341304d403a6626d7f7a1913165fe2f32 (patch)
tree471ef022d415c89ff4b5544a5e0239a9ac45d841 /nptl
parentec8c29dc013a5e0ca3330ce5e4ae989e811491e6 (diff)
downloadglibc-7d58530341304d403a6626d7f7a1913165fe2f32.tar.gz
Test for stack alignment.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/Makefile2
-rw-r--r--nptl/sysdeps/i386/Makefile2
-rw-r--r--nptl/sysdeps/i386/tls.h7
-rw-r--r--nptl/tst-align2.c87
4 files changed, 95 insertions, 3 deletions
diff --git a/nptl/Makefile b/nptl/Makefile
index 8149ef5ed4..3cef684226 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -205,7 +205,7 @@ tests = tst-attr1 tst-attr2 tst-attr3 \
tst-sem1 tst-sem2 tst-sem3 tst-sem4 tst-sem5 tst-sem6 tst-sem7 \
tst-sem8 tst-sem9 \
tst-barrier1 tst-barrier2 tst-barrier3 tst-barrier4 \
- tst-align \
+ tst-align tst-align2 \
tst-basic1 tst-basic2 tst-basic3 tst-basic4 tst-basic5 tst-basic6 \
tst-kill1 tst-kill2 tst-kill3 tst-kill4 tst-kill5 tst-kill6 \
tst-raise1 \
diff --git a/nptl/sysdeps/i386/Makefile b/nptl/sysdeps/i386/Makefile
index 693fb0569f..2f0d88f303 100644
--- a/nptl/sysdeps/i386/Makefile
+++ b/nptl/sysdeps/i386/Makefile
@@ -22,4 +22,6 @@ endif
ifeq ($(subdir),nptl)
CFLAGS-pthread_create.c += -mpreferred-stack-boundary=4
+CFLAGS-tst-align.c += -mpreferred-stack-boundary=4
+CFLAGS-tst-align2.c += -mpreferred-stack-boundary=4
endif
diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h
index 18b038f93e..945a4c71d6 100644
--- a/nptl/sysdeps/i386/tls.h
+++ b/nptl/sysdeps/i386/tls.h
@@ -397,9 +397,12 @@ union user_desc_init
#define CALL_THREAD_FCT(descr) \
({ void *__res; \
int __ignore1, __ignore2; \
- asm volatile ("pushl %%gs:%P4\n\t" \
+ asm volatile ("pushl %%eax\n\t" \
+ "pushl %%eax\n\t" \
+ "pushl %%eax\n\t" \
+ "pushl %%gs:%P4\n\t" \
"call *%%gs:%P3\n\t" \
- "addl $4, %%esp" \
+ "addl $16, %%esp" \
: "=a" (__res), "=c" (__ignore1), "=d" (__ignore2) \
: "i" (offsetof (struct pthread, start_routine)), \
"i" (offsetof (struct pthread, arg))); \
diff --git a/nptl/tst-align2.c b/nptl/tst-align2.c
new file mode 100644
index 0000000000..ec85f435b6
--- /dev/null
+++ b/nptl/tst-align2.c
@@ -0,0 +1,87 @@
+/* Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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>
+
+static int
+f (void *arg)
+{
+ bool ok = true;
+
+ 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];
+ pid_t p = clone (f, st + sizeof (st), 0, 0);
+#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"