www-client/chromium: fix build with glibc-2.24

This addresses bug #594070 by iGentoo . The issue has already been fixed
upstream for M57, this is a backport.

diff --git a/www-client/chromium/chromium-56.0.2924.21.ebuild b/www-client/chromium/chromium-56.0.2924.21.ebuild
index edaa7764aafd25283e2344ffc457e677d81ebc18..17cd0d0fc0e64db560c18bb1a25b55bb29cfcdb1 100644 (file)
--- a/www-client/chromium/chromium-56.0.2924.21.ebuild
+++ b/www-client/chromium/chromium-56.0.2924.21.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -163,6 +163,7 @@ PATCHES=(
        "${FILESDIR}/${PN}-system-ffmpeg-r4.patch"
        "${FILESDIR}/${PN}-system-jinja-r14.patch"
        "${FILESDIR}/${PN}-widevine-r1.patch"
+       "${FILESDIR}/${PN}-glibc-2.24.patch"
 )
 
 pre_build_checks() {

diff --git a/www-client/chromium/files/chromium-glibc-2.24.patch b/www-client/chromium/files/chromium-glibc-2.24.patch
new file mode 100644 (file)
index 0000000..f7bfd81
--- /dev/null
+++ b/www-client/chromium/files/chromium-glibc-2.24.patch
@@ -0,0 +1,15 @@
+--- a/third_party/WebKit/Source/wtf/allocator/PageAllocator.cpp.orig   2017-01-05 20:50:56.329369189 +0000
++++ b/third_party/WebKit/Source/wtf/allocator/PageAllocator.cpp        2017-01-05 20:51:32.926099779 +0000
+@@ -242,6 +242,12 @@
+   ASSERT(!(len & kSystemPageOffsetMask));
+ #if OS(POSIX)
+   int ret = madvise(addr, len, MADV_FREE);
++  if (ret != 0 && errno == EINVAL) {
++    // MADV_FREE only works on Linux 4.5+ . If request failed,
++    // retry with older MADV_DONTNEED . Note that MADV_FREE
++    // being defined at compile time doesn't imply runtime support.
++    ret = madvise(addr, len, MADV_DONTNEED);
++  }
+   RELEASE_ASSERT(!ret);
+ #else
+   setSystemPagesInaccessible(addr, len);