mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-20 05:17:54 +00:00
4b173045e9
Woo... It seems the glibc guys finally decided that tarballs were not deprecated, in fact. The patchset was vampirised from Gentoo (kudos, guys!), and applies to glibc+ports, so that's why it's been added as a patchset against ports, not against glibc.
55 lines
2.0 KiB
Diff
55 lines
2.0 KiB
Diff
http://bugs.gentoo.org/250342
|
|
http://sources.redhat.com/bugzilla/show_bug.cgi?id=9685
|
|
|
|
we cant assume sock_cloexec and pipe2 are bound together as the former defines
|
|
are found in glibc only while the latter are a combo of kernel headers and
|
|
glibc. so if we do a runtime detection of SOCK_CLOEXEC, but pipe2() is a stub
|
|
inside of glibc, we hit a problem. for example:
|
|
|
|
#include <grp.h>
|
|
#include <stdio.h>
|
|
main()
|
|
{
|
|
getgrnam("portage");
|
|
if (!popen("ls", "r"))
|
|
perror("popen()");
|
|
}
|
|
|
|
getgrnam() will detect that the kernel supports SOCK_CLOEXEC and then set both
|
|
__have_sock_cloexec and __have_pipe2 to true. but if glibc was built against
|
|
older kernel headers where __NR_pipe2 does not exist, glibc will have a ENOSYS
|
|
stub for it. so popen() will always fail as glibc assumes pipe2() works.
|
|
|
|
diff -durN glibc-2.10.1.orig/include/unistd.h glibc-2.10.1/include/unistd.h
|
|
--- glibc-2.10.1.orig/include/unistd.h 2008-07-27 20:23:17.000000000 +0200
|
|
+++ glibc-2.10.1/include/unistd.h 2009-11-13 00:50:15.000000000 +0100
|
|
@@ -167,9 +167,6 @@
|
|
extern int __pause_nocancel (void) attribute_hidden;
|
|
|
|
extern int __have_sock_cloexec;
|
|
-/* At lot of other functionality became available at the same time as
|
|
- SOCK_CLOEXEC. Avoid defining separate variables for all of them
|
|
- unless it is really necessary. */
|
|
-#define __have_pipe2 __have_sock_cloexec
|
|
+extern int __have_pipe2;
|
|
|
|
#endif
|
|
diff -durN glibc-2.10.1.orig/socket/have_sock_cloexec.c glibc-2.10.1/socket/have_sock_cloexec.c
|
|
--- glibc-2.10.1.orig/socket/have_sock_cloexec.c 2008-07-25 18:46:23.000000000 +0200
|
|
+++ glibc-2.10.1/socket/have_sock_cloexec.c 2009-11-13 00:50:15.000000000 +0100
|
|
@@ -16,9 +16,14 @@
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
+#include <fcntl.h>
|
|
#include <sys/socket.h>
|
|
#include <kernel-features.h>
|
|
|
|
#if defined SOCK_CLOEXEC && !defined __ASSUME_SOCK_CLOEXEC
|
|
int __have_sock_cloexec;
|
|
#endif
|
|
+
|
|
+#if defined O_CLOEXEC && !defined __ASSUME_PIPE2
|
|
+int __have_pipe2;
|
|
+#endif
|