alpha: Set wait4 as cancellation entrypoint

Since both wait and waitpid are implemented on top of wait4.  It fixes
nptl/tst-cancel{x}{4,5,7}.

Checked on alpha-linux-gnu.

diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list
index 95a27e1..caf45ea 100644 (file)
--- a/sysdeps/unix/sysv/linux/alpha/syscalls.list
+++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list
@@ -28,7 +28,6 @@ getitimer     -       getitimer       i:ip    __getitimer     getitimer@@GLIBC_2.1
 setitimer      -       setitimer       i:ipP   __setitimer     setitimer@@GLIBC_2.1
 utimes         -       utimes          i:sp    __utimes        utimes@@GLIBC_2.1
 getrusage      -       getrusage       i:ip    __getrusage     getrusage@@GLIBC_2.1
-wait4          -       wait4           i:iWiP  __wait4         wait4@@GLIBC_2.1
 
 # avoid 64-bit aliases on 32-bit statfs syscalls
 fstatfs                -       fstatfs         i:ip    __fstatfs       fstatfs

diff --git a/sysdeps/unix/sysv/linux/alpha/wait4.c b/sysdeps/unix/sysv/linux/alpha/wait4.c
new file mode 100644 (file)
index 0000000..0c86306
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/wait4.c
@@ -0,0 +1,26 @@
+/* wait4 -- wait for process to change state.  Linux/Alpha version.
+   Copyright (C) 2019 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <shlib-compat.h>
+
+#undef weak_alias
+#define weak_alias(a, b)
+#include <sysdeps/unix/sysv/linux/wait4.c>
+versioned_symbol (libc, __wait4, wait4, GLIBC_2_1);
+
+/* GLIBC_2_0 version is implemented at osf_wait4.c.  */