kumquat-buildroot/package/uclibc/0.9.33.2/uclibc-0013-eventfd-Implement-eventfd2-and-fix-eventfd.patch
Peter Korsgaard 055f1c02d3 uclibc: add upstream 0.9.33 fixes
Upstream has a large number of patches lined up for the next 0.9.33.x bugfix
release;

http://git.uclibc.org/uClibc/log/?h=0.9.33

Add them here, as atleast some of them are quite critical (E.G. the eventfd
issue gets triggered by recent glib versions).

I've skipped the microblaze and xtensa fixes as we don't currently support
those with 0.9.33.2.

Drop uclibc-0002-Add-definition-of-MSG_WAITFORONE-and-MSG_CMSG_CMSG_CLOEXE.patch
as that is a subset of uclibc-0035-socket.h-pull-socket_type.h-from-eglibc.patch

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-09-06 15:28:51 +02:00

65 lines
1.9 KiB
Diff

From 7810e4f8027b5c4c8ceec6fefec4eb779362ebb5 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sun, 10 Jun 2012 09:36:23 -0700
Subject: [PATCH] eventfd: Implement eventfd2 and fix eventfd
eventfd: evntfd assumes to take two arguments instead it
should be one evntfd expects two therefore implement both syscalls with
correct parameters
Thanks Eugene Rudoy for reporting it and also providing the patch
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
libc/sysdeps/linux/common/eventfd.c | 16 ++++++++++++++--
libc/sysdeps/linux/common/stubs.c | 2 +-
2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/libc/sysdeps/linux/common/eventfd.c b/libc/sysdeps/linux/common/eventfd.c
index cc3f3f0..96597ab 100644
--- a/libc/sysdeps/linux/common/eventfd.c
+++ b/libc/sysdeps/linux/common/eventfd.c
@@ -7,12 +7,24 @@
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
+#include <errno.h>
#include <sys/syscall.h>
#include <sys/eventfd.h>
/*
* eventfd()
*/
-#ifdef __NR_eventfd
-_syscall2(int, eventfd, int, count, int, flags)
+#if defined __NR_eventfd || defined __NR_eventfd2
+int eventfd (int count, int flags)
+{
+#if defined __NR_eventfd2
+ return INLINE_SYSCALL (eventfd2, 2, count, flags);
+#elif defined __NR_eventfd
+ if (flags != 0) {
+ __set_errno (EINVAL);
+ return -1;
+ }
+ return INLINE_SYSCALL (eventfd, 1, count);
+#endif
+}
#endif
diff --git a/libc/sysdeps/linux/common/stubs.c b/libc/sysdeps/linux/common/stubs.c
index 4d1e26c..7af14c1 100644
--- a/libc/sysdeps/linux/common/stubs.c
+++ b/libc/sysdeps/linux/common/stubs.c
@@ -93,7 +93,7 @@ make_stub(epoll_ctl)
make_stub(epoll_wait)
#endif
-#if !defined __NR_eventfd && defined __UCLIBC_LINUX_SPECIFIC__
+#if !defined __NR_eventfd && !defined __NR_eventfd2 && defined __UCLIBC_LINUX_SPECIFIC__
make_stub(eventfd)
#endif
--
1.7.10.4