Remove __waitpid_nocancel

It enables and disables cancellation with pthread_setcancelstate
before calling the waitpid.  It simplifies the waitpid implementation
for architectures that do not provide either __NR_waitpid or
__NR_wait4.

Checked on x86_64-linux-gnu.

3 files changed, 1 insertions, 39 deletions

diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 07776d28ea..8735092c12 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -216,7 +216,7 @@ sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
 		   open_nocancel open64_nocancel \
 		   openat_nocancel openat64_nocancel \
 		   read_nocancel pread64_nocancel \
-		   waitpid_nocancel write_nocancel statx_cp
+		   write_nocancel statx_cp
 
 sysdep_headers += bits/fcntl-linux.h
 
diff --git a/sysdeps/unix/sysv/linux/not-cancel.h b/sysdeps/unix/sysv/linux/not-cancel.h
index 192a0a5195..49e4e0249a 100644
--- a/sysdeps/unix/sysv/linux/not-cancel.h
+++ b/sysdeps/unix/sysv/linux/not-cancel.h
@@ -69,9 +69,6 @@ __writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt)
   INTERNAL_SYSCALL_CALL (writev, err, fd, iov, iovcnt);
 }
 
-/* Uncancelable waitpid.  */
-__typeof (waitpid) __waitpid_nocancel;
-
 /* Uncancelable fcntl.  */
 __typeof (__fcntl) __fcntl64_nocancel;
 
@@ -84,7 +81,6 @@ hidden_proto (__read_nocancel)
 hidden_proto (__pread64_nocancel)
 hidden_proto (__write_nocancel)
 hidden_proto (__close_nocancel)
-hidden_proto (__waitpid_nocancel)
 hidden_proto (__fcntl64_nocancel)
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/waitpid_nocancel.c b/sysdeps/unix/sysv/linux/waitpid_nocancel.c
deleted file mode 100644
index 3697c6b938..0000000000
--- a/sysdeps/unix/sysv/linux/waitpid_nocancel.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Linux waitpid syscall implementation -- non-cancellable.
-   Copyright (C) 2018-2019 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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <sysdep-cancel.h>
-#include <stdlib.h>
-#include <sys/wait.h>
-#include <not-cancel.h>
-
-__pid_t
-__waitpid_nocancel (__pid_t pid, int *stat_loc, int options)
-{
-#ifdef __NR_waitpid
-  return INLINE_SYSCALL_CALL (waitpid, pid, stat_loc, options);
-#else
-  return INLINE_SYSCALL_CALL (wait4, pid, stat_loc, options, NULL);
-#endif
-}
-libc_hidden_def (__waitpid_nocancel)