uclibc: fix compile error on i586

Without this you get:

| libc/sysdeps/linux/common/epoll.c: In function '__libc_epoll_pwait':
| libc/sysdeps/linux/common/epoll.c:71:80: error: memory input 7 is not directly addressable
| libc/sysdeps/linux/common/epoll.c:75:86: error: memory input 7 is not directly addressable
| make: *** [libc/sysdeps/linux/common/epoll.o] Error 1

(From OE-Core rev: aeacad638c2a3d5f0b6299edc3890fdaad312c79)

Signed-off-by: Phil Blundell <philb@gnu.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 26 insertions, 0 deletions

diff --git a/meta/recipes-core/uclibc/uclibc-git/epoll-asm-fix.patch b/meta/recipes-core/uclibc/uclibc-git/epoll-asm-fix.patch
new file mode 100644
index 0000000000..bcd834d618
--- /dev/null
+++ b/meta/recipes-core/uclibc/uclibc-git/epoll-asm-fix.patch
@@ -0,0 +1,25 @@
+Fix a compile error due to last argument to syscall() not being memory addressable.
+
+Upstream-Status: Pending
+Signed-off-by: Phil Blundell <philb@gnu.org>
+
+diff --git a/libc/sysdeps/linux/common/epoll.c b/libc/sysdeps/linux/common/epoll.c
+index 85b0cfd..c034b2c 100644
+--- a/libc/sysdeps/linux/common/epoll.c
++++ b/libc/sysdeps/linux/common/epoll.c
+@@ -67,12 +67,13 @@ extern __typeof(epoll_pwait) __libc_epoll_pwait;
+ int __libc_epoll_pwait(int epfd, struct epoll_event *events, int maxevents,
+                                                int timeout, const sigset_t *set)
+ {
++       int nsig = _NSIG / 8;
+        if (SINGLE_THREAD_P)
+-               return INLINE_SYSCALL(epoll_pwait, 6, epfd, events, maxevents, timeout, set, _NSIG / 8);
++               return INLINE_SYSCALL(epoll_pwait, 6, epfd, events, maxevents, timeout, set, nsig);
+ # ifdef __UCLIBC_HAS_THREADS_NATIVE__
+        else {
+                int oldtype = LIBC_CANCEL_ASYNC ();
+-               int result = INLINE_SYSCALL(epoll_pwait, 6, epfd, events, maxevents, timeout, set, _NSIG / 8);
++               int result = INLINE_SYSCALL(epoll_pwait, 6, epfd, events, maxevents, timeout, set, nsig);
+                LIBC_CANCEL_RESET (oldtype);
+                return result;
+        }
diff --git a/meta/recipes-core/uclibc/uclibc_git.bb b/meta/recipes-core/uclibc/uclibc_git.bb
index 78ef4f28d9..b8f58f0095 100644
--- a/meta/recipes-core/uclibc/uclibc_git.bb
+++ b/meta/recipes-core/uclibc/uclibc_git.bb
@@ -26,5 +26,6 @@ SRC_URI = "git://uclibc.org/uClibc.git;branch=master;protocol=git \
         file://remove_attribute_optimize_Os.patch \
         file://append_UCLIBC_EXTRA_CFLAGS.patch \
         file://compile-arm-fork-with-O2.patch \
+        file://epoll-asm-fix.patch \
         "
 S = "${WORKDIR}/git"