5 files changed, 66 insertions, 4 deletions
diff --git a/sysdeps/generic/bits/libc-tsd.h b/sysdeps/generic/bits/libc-tsd.h
index 1954b20334..cc2c2c1219 100644
--- a/sysdeps/generic/bits/libc-tsd.h
+++ b/sysdeps/generic/bits/libc-tsd.h
@@ -51,7 +51,7 @@
    We don't define an enum for the possible key values, because the KEYs
    translate directly into variables by macro magic.  */
 
-#if USE_TLS && HAVE___THREAD
+#if USE___THREAD
 # define __libc_tsd_define(CLASS, KEY)	CLASS __thread void *__libc_tsd_##KEY;
 
 # define __libc_tsd_address(KEY)	(&__libc_tsd_##KEY)
diff --git a/sysdeps/generic/dl-sysdep.h b/sysdeps/generic/dl-sysdep.h
new file mode 100644
index 0000000000..b39103cbc2
--- /dev/null
+++ b/sysdeps/generic/dl-sysdep.h
@@ -0,0 +1,28 @@
+/* System-specific settings for dynamic linker code.  Generic version.
+   Copyright (C) 2002 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.  */
+
+/* This macro must be defined to either 0 or 1.
+
+   If 1, then an errno global variable hidden in ld.so will work right with
+   all the errno-using libc code compiled for ld.so, and there is never a
+   need to share the errno location with libc.  This is appropriate only if
+   all the libc functions that ld.so uses are called without PLT and always
+   get the versions linked into ld.so rather than the libc ones.  */
+
+#define RTLD_PRIVATE_ERRNO 1
diff --git a/sysdeps/generic/errno.c b/sysdeps/generic/errno.c
new file mode 100644
index 0000000000..cba5ab9c3b
--- /dev/null
+++ b/sysdeps/generic/errno.c
@@ -0,0 +1,32 @@
+/* Definition of `errno' variable.  Canonical version.
+   Copyright (C) 2002 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 <errno.h>
+#include <tls.h>
+#undef errno
+
+#if USE___THREAD
+__thread int errno;
+#else
+/* This differs from plain `int errno;' in that it doesn't create
+   a common definition, but a plain symbol that resides in .bss,
+   which can have an alias.  */
+int errno __attribute__ ((section (".bss")));
+strong_alias (errno, _errno)
+#endif
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index c149656446..36582a7463 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -34,6 +34,7 @@
 #include <sys/mman.h>
 #include <link.h>
 #include <dl-lookupcfg.h>
+#include <dl-sysdep.h>
 #include <bits/libc-lock.h>
 #include <hp-timing.h>
 #include <tls.h>
@@ -372,6 +373,10 @@ struct rtld_global
 
   /* Structure describing the dynamic linker itself.  */
   EXTERN struct link_map _dl_rtld_map;
+
+#ifdef _LIBC_REENTRANT
+  EXTERN void **(*_dl_error_catch_tsd) (void) __attribute__ ((const));
+#endif
 #ifdef SHARED
 };
 # define __rtld_global_attribute__
diff --git a/sysdeps/generic/start.c b/sysdeps/generic/start.c
index cf7efc931a..08f985c482 100644
--- a/sysdeps/generic/start.c
+++ b/sysdeps/generic/start.c
@@ -11,6 +11,3 @@ int __data_start = 0;
 #ifdef HAVE_WEAK_SYMBOLS
 weak_alias (__data_start, data_start)
 #endif
-
-volatile int __errno;
-strong_alias (__errno, errno)