Result of: git mv -f sysdeps/posix/shm_open.c rt
and manual removal of the _POSIX_MAPPED_FILES preprocessor condition.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
---
rt/shm_open.c | 34 ++++++++++++++++++----
sysdeps/posix/shm_open.c | 62 ----------------------------------------
2 files changed, 29 insertions(+), 67 deletions(-)
delete mode 100644 sysdeps/posix/shm_open.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
+/* shm_open -- open a POSIX shared memory object. Generic POSIX file version.
+ Copyright (C) 2001-2021 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
@@ -16,13 +17,36 @@
<https://www.gnu.org/licenses/>. */
#include <errno.h>
-#include <sys/mman.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <shm-directory.h>
+#include <unistd.h>
/* Open shared memory object. */
int
shm_open (const char *name, int oflag, mode_t mode)
{
- __set_errno (ENOSYS);
- return -1;
+ struct shmdir_name dirname;
+ if (__shm_get_name (&dirname, name, false) != 0)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ oflag |= O_NOFOLLOW | O_CLOEXEC;
+
+ /* Disable asynchronous cancellation. */
+ int state;
+ pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
+
+ int fd = open (dirname.name, oflag, mode);
+ if (fd == -1 && __glibc_unlikely (errno == EISDIR))
+ /* It might be better to fold this error with EINVAL since
+ directory names are just another example for unsuitable shared
+ object names and the standard does not mention EISDIR. */
+ __set_errno (EINVAL);
+
+ pthread_setcancelstate (state, NULL);
+
+ return fd;
}
-stub_warning (shm_open)
deleted file mode 100644
@@ -1,62 +0,0 @@
-/* shm_open -- open a POSIX shared memory object. Generic POSIX file version.
- Copyright (C) 2001-2021 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 <unistd.h>
-
-#if ! _POSIX_MAPPED_FILES
-
-# include <rt/shm_open.c>
-
-#else
-
-# include <errno.h>
-# include <fcntl.h>
-# include <pthread.h>
-# include <shm-directory.h>
-
-
-/* Open shared memory object. */
-int
-shm_open (const char *name, int oflag, mode_t mode)
-{
- struct shmdir_name dirname;
- if (__shm_get_name (&dirname, name, false) != 0)
- {
- __set_errno (EINVAL);
- return -1;
- }
-
- oflag |= O_NOFOLLOW | O_CLOEXEC;
-
- /* Disable asynchronous cancellation. */
- int state;
- pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
-
- int fd = open (dirname.name, oflag, mode);
- if (fd == -1 && __glibc_unlikely (errno == EISDIR))
- /* It might be better to fold this error with EINVAL since
- directory names are just another example for unsuitable shared
- object names and the standard does not mention EISDIR. */
- __set_errno (EINVAL);
-
- pthread_setcancelstate (state, NULL);
-
- return fd;
-}
-
-#endif /* _POSIX_MAPPED_FILES */