lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-28 00:21:52 +03:00
Code Activity

linux: Implement tmpfile with O_TMPFILE (BZ#21530)

Browse Source 
This patch adds O_TMPFILE support to tmpfile on Linux.  This is
similar to the previous suggestion by Andreas Schwab [1] with the
difference the file descriptor creation is parameterized to
compartmentalize Linux only open flags (O_TMPFILE) on sysdeps.

Checked on x86_64-linux-gnu.

	Adhemerval Zanella  <adhemerval.zanella@linaro.org>
	Andreas Schwab  <schwab@suse.de>

	[BZ #21530]
	* include/stdio.h (__gen_tempfd): New function.
	* stdio-common/Makefile (routines): Add gentempfd.
	* stdio-common/gentempfd.c: New file.
	* sysdeps/unix/sysv/linux/gentempfd.c: Likewise.
	* stdio-common/tmpfile.c (tmpfile): First try to use a system specific
	unnamed file first.

[1] https://sourceware.org/ml/libc-alpha/2017-06/msg01293.html
This commit is contained in:
Adhemerval Zanella
2017-06-26 11:52:14 -03:00
parent da162bf234
commit e0d2eb5a79
6 changed files with 93 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/stdio.h
View File

@ -191,5 +191,8 @@ libc_hidden_proto (__obstack_vprintf_chk)
extern FILE * __fmemopen (void *buf, size_t len, const char *mode);
libc_hidden_proto (__fmemopen)
extern int __gen_tempfd (int flags);
libc_hidden_proto (__gen_tempfd)
# endif /* not _ISOMAC */
#endif /* stdio.h */