From e0d2eb5a798613f9c24ad0056da86c8cfd19043d Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 26 Jun 2017 11:52:14 -0300 Subject: 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 Andreas Schwab [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 --- include/stdio.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/stdio.h') diff --git a/include/stdio.h b/include/stdio.h index 509447c..87e0e10 100644 --- a/include/stdio.h +++ b/include/stdio.h @@ -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 */ -- cgit v1.1