1998-12-04 Mark Kettenis <kettenis@phys.uva.nl>

	Provide backwards binary compatibility for the Hurd.
	* hurd/geteuids.c [PIC && DO_VERSIONING]: Make __getuids a weak
	alias for geteuids.
	* hurd/Versions [GLIBC_2.0]: Add __getuids,
	__hurd_file_name_lookup and _hurd_umask.
	[GLIBC_2.1]: Add _hurd_proc_init.
	* hurd/Makefile [versioning] (routines): Add compat-20.
	(shared-only-routines): Likewise.
	* hurd/hurdinit.c (_hurd_new_proc_init): Renamed from
	_hurd_proc_init.  Use it as the default _hurd_proc_init version
	for GLIBC_2.1.
	* hurd/compat-20.c: New file.
	* mach/Versions [GLIBC_2.0]: Add __vm_allocate.

diff --git a/ChangeLog b/ChangeLog
index 31b9e1048d55e71104aad97e04fcd5e1ffd341da..4b74bd47f14d23a4fd47c0b3837b07428bb29871 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,18 @@
-1998-12-03  Mark Kettenis  <kettenis@phys.uva.nl>
-
-       * hurd/Versions [GLIBC_2.1]: Add _hurd_proc_init.
-
-       * hurd/Versions: Move geteuids and seteuids from GLIBC_2.0 to
-       GLIBC_2.1.
+1998-12-04  Mark Kettenis  <kettenis@phys.uva.nl>
+
+       Provide backwards binary compatibility for the Hurd.
+       * hurd/geteuids.c [PIC && DO_VERSIONING]: Make __getuids a weak
+       alias for geteuids.
+       * hurd/Versions [GLIBC_2.0]: Add __getuids,
+       __hurd_file_name_lookup and _hurd_umask.
+       [GLIBC_2.1]: Add _hurd_proc_init.
+       * hurd/Makefile [versioning] (routines): Add compat-20.
+       (shared-only-routines): Likewise.
+       * hurd/hurdinit.c (_hurd_new_proc_init): Renamed from
+       _hurd_proc_init.  Use it as the default _hurd_proc_init version
+       for GLIBC_2.1.
+       * hurd/compat-20.c: New file.
+       * mach/Versions [GLIBC_2.0]: Add __vm_allocate.
 
 1998-12-02  Ulrich Drepper  <drepper@cygnus.com>
 

diff --git a/hurd/Makefile b/hurd/Makefile
index 3eeb445ca7b7267a751c0b1072a9890b7c834fd7..250e441acfd78c297b5fa4e3e4c08050a4bcef91 100644 (file)
--- a/hurd/Makefile
+++ b/hurd/Makefile
@@ -66,6 +66,13 @@ distribute = hurdstartup.h hurdfault.h hurdhost.h \
 # XXX this is a temporary hack; see hurdmalloc.h
 routines += hurdmalloc
 distribute += hurdmalloc.h
+
+# Binary compatibility for libc.so.0.2[GLIBC_2.0].
+ifeq ($(versioning),yes)
+routines += compat-20
+endif
+
+shared-only-routines = compat-20
 \f
 include ../mach/Machrules
 include ../Rules

diff --git a/hurd/Versions b/hurd/Versions
index 83974ca5e14b0d9e8ffc4e1ed5f2b8fcdc5cdb59..f3e311b2a9166b54b5f204b1e16d32bfaf201f25 100644 (file)
--- a/hurd/Versions
+++ b/hurd/Versions
@@ -1,5 +1,13 @@
 libc {
   GLIBC_2.0 {
+    # These few symbols are here only for binary compatibility
+    # with the pre-versioning libc.so.0.2 ABI.  Their replacements
+    # are in the GLIBC_2.1 version set.  When the soname changes,
+    # these can be removed.
+    __getuids;
+    __hurd_file_name_lookup;
+    _hurd_proc_init; _hurd_umask;
+
     # necessary for the Hurd brk implementation
     _end;
 
@@ -49,7 +57,6 @@ libc {
     _hurd_port_get;
     _hurd_port_locked_get;
     _hurd_ports_use;
-    _hurd_proc_init;
     _hurd_thread_sigstate;
 
     # functions in normal name space
@@ -91,6 +98,9 @@ libc {
     vpprintf;
   }
   GLIBC_2.1 {
+    # "quasi-internal" functions
+    _hurd_proc_init;
+
     # g*
     geteuids;
 

diff --git a/hurd/compat-20.c b/hurd/compat-20.c
new file mode 100644 (file)
index 0000000..75d51ce
--- /dev/null
+++ b/hurd/compat-20.c
@@ -0,0 +1,32 @@
+/* Old-versioned functions for binary compatibility with glibc-2.0.
+   Copyright (C) 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <hurd.h>
+
+/* This file provides definitions for binary compatibility with
+   the GLIBC_2.0 version set for the libc.so.0.2 soname.
+
+   These definitions can be removed when the soname changes.  */
+
+void
+_hurd_proc_init_compat_20 (char **argv)
+{
+  _hurd_proc_init (argv, NULL, 0);
+}
+symbol_version (_hurd_proc_init_compat_20, _hurd_proc_init, GLIBC_2.0);

diff --git a/hurd/geteuids.c b/hurd/geteuids.c
index ed85dfd13d451a6de975d8a5a3c86c497bdfcb7b..e37f9c27c2f4b6a1bc359d14f1c17519d7d0c01f 100644 (file)
--- a/hurd/geteuids.c
+++ b/hurd/geteuids.c
@@ -61,3 +61,9 @@ geteuids (int n, uid_t *uidset)
 
   return nuids;
 }
+
+/* XXX Remove this alias when we bump the libc soname.  */
+
+#if defined PIC && DO_VERSIONING
+weak_alias (geteuids, __getuids)
+#endif

diff --git a/hurd/hurdinit.c b/hurd/hurdinit.c
index cd0d6e529c85915131914cf1b4fabf745f6d694a..50b6729fd3a5eee00c878b420b40dba7544b83ac 100644 (file)
--- a/hurd/hurdinit.c
+++ b/hurd/hurdinit.c
@@ -118,8 +118,8 @@ DEFINE_HOOK (_hurd_proc_subinit, (void));
    Call _hurdsig_init to set up signal processing.  */
 
 void
-_hurd_proc_init (char **argv,
-                const int *intarray, size_t intarraysize)
+_hurd_new_proc_init (char **argv,
+                    const int *intarray, size_t intarraysize)
 {
   mach_port_t oldmsg;
   struct hurd_userlink ulink;
@@ -160,6 +160,17 @@ _hurd_proc_init (char **argv,
        our parent (presumably a debugger) that the exec has completed.  */
     __msg_sig_post (_hurd_msgport, SIGTRAP, 0, __mach_task_self ());
 }
+
+/* XXX Remove this versioning stuff and rename __new_hurd_proc_init
+   above back to _hurd_proc_init when we bump the libc soname.  */
+
+#if defined PIC && DO_VERSIONING
+default_symbol_version (_hurd_new_proc_init, _hurd_proc_init, GLIBC_2.1);
+#else
+# ifdef weak_alias
+weak_alias (_hurd_new_proc_init, _hurd_proc_init)
+# endif
+#endif
 \f
 /* Called when we get a message telling us to change our proc server port.  */
 

diff --git a/mach/Versions b/mach/Versions
index 23fe6d7e99f3f1a297103596803aa82ecb65f0f1..044084db32c38c737aaf7e40f1ba28aa2ccdd661 100644 (file)
--- a/mach/Versions
+++ b/mach/Versions
@@ -1,5 +1,10 @@
 libc {
   GLIBC_2.0 {
+    # This symbol is here only for binary compatibility with the
+    # pre-versioning libc.so.0.2 ABI.  When the soname changes,
+    # it can be removed.
+    __vm_allocate;
+
     # variables used in Mach-specific macros
     __mach_task_self_;
     __vm_page_size;