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Add stubs for TLS functions. These will be replaced at runtime by the

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functional versions in rtld.
This commit is contained in:
Doug Rabson 2004-08-03 08:54:01 +00:00
parent 017246d02f
commit 0e1c7d0f08
2 changed files with 73 additions and 3 deletions
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7
lib/libc/gen/Makefile.inc
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@ -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)

69
lib/libc/gen/tls.c Normal file
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@ -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)
{
}