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[Bug libc/21530] tmpfile() should be implemented using O_TMPFILE
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Fri, 01 Sep 2017 12:55:09 +0000
- Subject: [Bug libc/21530] tmpfile() should be implemented using O_TMPFILE
- Auto-submitted: auto-generated
- References: <bug-21530-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21530
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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e0d2eb5a798613f9c24ad0056da86c8cfd19043d
commit e0d2eb5a798613f9c24ad0056da86c8cfd19043d
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jun 26 11:52:14 2017 -0300
linux: Implement tmpfile with O_TMPFILE (BZ#21530)
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
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 11 ++++++++
include/stdio.h | 3 ++
stdio-common/Makefile | 2 +-
support/xpipe.c => stdio-common/gentempfd.c | 14 ++++------
stdio-common/tmpfile.c | 26 +++++++++++++-------
.../unix/sysv/linux/gentempfd.c | 22 +++++++++-------
6 files changed, 50 insertions(+), 28 deletions(-)
copy support/xpipe.c => stdio-common/gentempfd.c (83%)
copy support/xaccept4.c => sysdeps/unix/sysv/linux/gentempfd.c (66%)
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