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authordfr <dfr@FreeBSD.org>2004-08-03 08:54:01 +0000
committerdfr <dfr@FreeBSD.org>2004-08-03 08:54:01 +0000
commit3da15542da591d4ee0ee34595e0d65a232cb95a7 (patch)
tree381a32ed3f6f4cb535b27d3bbf0b7b0042a0e102 /lib/libc
parent4e9853427fa3cd90808fd8369e917f588b1ee5c0 (diff)
downloadFreeBSD-src-3da15542da591d4ee0ee34595e0d65a232cb95a7.zip
FreeBSD-src-3da15542da591d4ee0ee34595e0d65a232cb95a7.tar.gz
Add stubs for TLS functions. These will be replaced at runtime by the
functional versions in rtld.
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/gen/Makefile.inc7
-rw-r--r--lib/libc/gen/tls.c69
2 files changed, 73 insertions, 3 deletions
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc
index bae7e34..f1a5411 100644
--- a/lib/libc/gen/Makefile.inc
+++ b/lib/libc/gen/Makefile.inc
@@ -28,9 +28,10 @@ SRCS+= __xuname.c _pthread_stubs.c _rand48.c _spinlock_stub.c _thread_init.c \
setproctitle.c setprogname.c siginterrupt.c siglist.c signal.c \
sigsetops.c sleep.c srand48.c statvfs.c stringlist.c strtofflags.c \
sysconf.c sysctl.c sysctlbyname.c sysctlnametomib.c \
- syslog.c telldir.c termios.c time.c times.c timezone.c ttyname.c \
- ttyslot.c ualarm.c ulimit.c uname.c unvis.c usleep.c utime.c \
- valloc.c vis.c wait.c wait3.c waitpid.c wordexp.c
+ syslog.c telldir.c termios.c time.c times.c timezone.c tls.c \
+ ttyname.c ttyslot.c ualarm.c ulimit.c uname.c unvis.c \
+ usleep.c utime.c valloc.c vis.c wait.c wait3.c waitpid.c \
+ wordexp.c
# machine-dependent gen sources
.if exists(${.CURDIR}/${MACHINE_ARCH}/gen/Makefile.inc)
diff --git a/lib/libc/gen/tls.c b/lib/libc/gen/tls.c
new file mode 100644
index 0000000..1c4f8ce
--- /dev/null
+++ b/lib/libc/gen/tls.c
@@ -0,0 +1,69 @@
+/*-
+ * Copyright (c) 2004 Doug Rabson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Define stubs for TLS internals so that programs and libraries can
+ * link. These functions will be replaced by functional versions at
+ * runtime from ld-elf.so.1.
+ */
+
+#include <stddef.h>
+
+#ifdef __i386__
+
+extern void *___tls_get_addr(void *ti) __attribute__((__regparm__(1)));
+
+#pragma weak ___tls_get_addr
+__attribute__((__regparm__(1)))
+void *
+___tls_get_addr(void *ti)
+{
+ return (0);
+}
+
+#endif
+
+#pragma weak __tls_get_addr
+void *
+__tls_get_addr()
+{
+ return (0);
+}
+
+#pragma weak _rtld_allocate_tls
+void *
+_rtld_allocate_tls(void *oldtls, size_t tcbsize, size_t tcbalign)
+{
+ return (0);
+}
+
+#pragma weak _rtld_free_tls
+void
+_rtld_free_tls(void *tcb, size_t tcbsize, size_t tcbalign)
+{
+}
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