openjdk-8: fix musl build

Add various patches to make it work in musl. Some of them are generic
enough to be applied for all builds, some need to be specific to musl.

Signed-off-by: André Draszik <andre.draszik@jci.com>
Signed-off-by: Maxin B. John <maxin.john@intel.com>

18 files changed, 1021 insertions, 4 deletions

diff --git a/recipes-core/openjdk/patches-openjdk-8/0001-jdk-comparison-between-pointer-and-integer.patch b/recipes-core/openjdk/patches-openjdk-8/0001-jdk-comparison-between-pointer-and-integer.patch
index 29a30d6..b310598 100644
--- a/recipes-core/openjdk/patches-openjdk-8/0001-jdk-comparison-between-pointer-and-integer.patch
+++ b/recipes-core/openjdk/patches-openjdk-8/0001-jdk-comparison-between-pointer-and-integer.patch
@@ -1,7 +1,7 @@
 From 97d6911fb581f9e44785db29abbf97ce77713f50 Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik@jci.com>
 Date: Fri, 2 Mar 2018 11:13:08 +0000
-Subject: [PATCH 1/8] jdk: comparison between pointer and integer
+Subject: [PATCH 1/9] jdk: comparison between pointer and integer
 MIME-Version: 1.0
 Content-Type: text/plain; charset=UTF-8
 Content-Transfer-Encoding: 8bit
diff --git a/recipes-core/openjdk/patches-openjdk-8/0002-hotspot-fix-compilation-with-security-flags-enabled.patch b/recipes-core/openjdk/patches-openjdk-8/0002-hotspot-fix-compilation-with-security-flags-enabled.patch
index 075a638..dcadea1 100644
--- a/recipes-core/openjdk/patches-openjdk-8/0002-hotspot-fix-compilation-with-security-flags-enabled.patch
+++ b/recipes-core/openjdk/patches-openjdk-8/0002-hotspot-fix-compilation-with-security-flags-enabled.patch
@@ -1,7 +1,7 @@
 From bdea8cf299313388ec41ea20281deca6dc4f764d Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
 Date: Tue, 27 Feb 2018 14:41:06 +0000
-Subject: [PATCH 2/8] hotspot: fix compilation with security flags enabled
+Subject: [PATCH 2/9] hotspot: fix compilation with security flags enabled
 MIME-Version: 1.0
 Content-Type: text/plain; charset=UTF-8
 Content-Transfer-Encoding: 8bit
diff --git a/recipes-core/openjdk/patches-openjdk-8/0003-jdk-Allow-using-a-system-installed-libjpeg.patch b/recipes-core/openjdk/patches-openjdk-8/0003-jdk-Allow-using-a-system-installed-libjpeg.patch
index a40e11f..e189278 100644
--- a/recipes-core/openjdk/patches-openjdk-8/0003-jdk-Allow-using-a-system-installed-libjpeg.patch
+++ b/recipes-core/openjdk/patches-openjdk-8/0003-jdk-Allow-using-a-system-installed-libjpeg.patch
@@ -1,7 +1,7 @@
 From a6746c1ee43a63e79b5405e40c463d00160bc02e Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik@jci.com>
 Date: Tue, 27 Feb 2018 13:36:53 +0000
-Subject: [PATCH 3/8] jdk: Allow using a system-installed libjpeg
+Subject: [PATCH 3/9] jdk: Allow using a system-installed libjpeg
 MIME-Version: 1.0
 Content-Type: text/plain; charset=UTF-8
 Content-Transfer-Encoding: 8bit
diff --git a/recipes-core/openjdk/patches-openjdk-8/0004-jdk-Allow-using-a-system-installed-libpng.patch b/recipes-core/openjdk/patches-openjdk-8/0004-jdk-Allow-using-a-system-installed-libpng.patch
index af00bef..658ba32 100644
--- a/recipes-core/openjdk/patches-openjdk-8/0004-jdk-Allow-using-a-system-installed-libpng.patch
+++ b/recipes-core/openjdk/patches-openjdk-8/0004-jdk-Allow-using-a-system-installed-libpng.patch
@@ -1,7 +1,7 @@
 From 549100e3e687d2c844eeebe22a7dcbf7ed50406e Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik@jci.com>
 Date: Tue, 27 Feb 2018 13:43:04 +0000
-Subject: [PATCH 4/8] jdk: Allow using a system-installed libpng
+Subject: [PATCH 4/9] jdk: Allow using a system-installed libpng
 MIME-Version: 1.0
 Content-Type: text/plain; charset=UTF-8
 Content-Transfer-Encoding: 8bit
diff --git a/recipes-core/openjdk/patches-openjdk-8/0005-hotspot-use-correct-include-for-poll.patch b/recipes-core/openjdk/patches-openjdk-8/0005-hotspot-use-correct-include-for-poll.patch
new file mode 100644
index 0000000..8b3420e
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/0005-hotspot-use-correct-include-for-poll.patch
@@ -0,0 +1,85 @@
+From 79e35bd203b40979e1d241a04d6d9df373327bef Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 09:28:06 +0000
+Subject: [PATCH 5/9] hotspot: use correct include for poll
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Compiling against musl-libc gives the following warning (which is
+treated as error due to -Werror):
+.../recipe-sysroot/usr/include/sys/poll.h:1:2: error: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Werror=cpp]
+ #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
+  ^~~~~~~
+etc.
+
+To use poll(), poll.h needs to be included, even on glibc - do so using
+the following command:
+    for i in $(git grep sys/poll\.h hotspot | cut -f 1 -d : | sort -u) ; do
+        sed -e 's,sys/poll\.h,poll.h,g' -i ${i}
+    done
+
+Upstream-Status: Pending
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ hotspot/src/os/aix/vm/os_aix.inline.hpp         | 2 +-
+ hotspot/src/os/bsd/vm/os_bsd.inline.hpp         | 2 +-
+ hotspot/src/os/linux/vm/os_linux.inline.hpp     | 2 +-
+ hotspot/src/os/solaris/vm/os_solaris.inline.hpp | 2 +-
+ 4 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/hotspot/src/os/aix/vm/os_aix.inline.hpp b/hotspot/src/os/aix/vm/os_aix.inline.hpp
+index a97c94c0..e2974ee1 100644
+--- a/hotspot/src/os/aix/vm/os_aix.inline.hpp
++++ b/hotspot/src/os/aix/vm/os_aix.inline.hpp
+@@ -34,7 +34,7 @@
+ 
+ #include <unistd.h>
+ #include <sys/socket.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <sys/ioctl.h>
+ #include <netdb.h>
+ 
+diff --git a/hotspot/src/os/bsd/vm/os_bsd.inline.hpp b/hotspot/src/os/bsd/vm/os_bsd.inline.hpp
+index 10b39941..3144a29c 100644
+--- a/hotspot/src/os/bsd/vm/os_bsd.inline.hpp
++++ b/hotspot/src/os/bsd/vm/os_bsd.inline.hpp
+@@ -33,7 +33,7 @@
+ 
+ #include <unistd.h>
+ #include <sys/socket.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <netdb.h>
+ 
+ inline void* os::thread_local_storage_at(int index) {
+diff --git a/hotspot/src/os/linux/vm/os_linux.inline.hpp b/hotspot/src/os/linux/vm/os_linux.inline.hpp
+index 10d56d89..b9b2b775 100644
+--- a/hotspot/src/os/linux/vm/os_linux.inline.hpp
++++ b/hotspot/src/os/linux/vm/os_linux.inline.hpp
+@@ -33,7 +33,7 @@
+ 
+ #include <unistd.h>
+ #include <sys/socket.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <netdb.h>
+ 
+ inline void* os::thread_local_storage_at(int index) {
+diff --git a/hotspot/src/os/solaris/vm/os_solaris.inline.hpp b/hotspot/src/os/solaris/vm/os_solaris.inline.hpp
+index 921fcf7c..5d80a7d0 100644
+--- a/hotspot/src/os/solaris/vm/os_solaris.inline.hpp
++++ b/hotspot/src/os/solaris/vm/os_solaris.inline.hpp
+@@ -33,7 +33,7 @@
+ #include <sys/param.h>
+ #include <dlfcn.h>
+ #include <sys/socket.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <sys/filio.h>
+ #include <unistd.h>
+ #include <netdb.h>
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/0006-hotspot-don-t-rely-on-old-SysV-SIGCLD.patch b/recipes-core/openjdk/patches-openjdk-8/0006-hotspot-don-t-rely-on-old-SysV-SIGCLD.patch
new file mode 100644
index 0000000..81dbebd
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/0006-hotspot-don-t-rely-on-old-SysV-SIGCLD.patch
@@ -0,0 +1,41 @@
+From 4ed4b58270dcd3d897adef605893c104944c4f3a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 15:00:55 +0000
+Subject: [PATCH 6/9] hotspot: don't rely on old SysV SIGCLD
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+SIGCLD is the old System V name for SIGCHLD, and not
+all c libraries implement it, e.g. musl-libc, which
+leads to the following compilation error:
+
+| hotspot/src/os/linux/vm/jvm_linux.cpp:157:17: error: 'SIGCLD' was not declared in this scope
+|    "CLD",        SIGCLD,         /* Same as SIGCHLD (System V).  */
+|                  ^~~~~~
+
+Just make it conditional, so the code compiles everywhere.
+
+Upstream-Status: Pending
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ hotspot/src/os/linux/vm/jvm_linux.cpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/hotspot/src/os/linux/vm/jvm_linux.cpp b/hotspot/src/os/linux/vm/jvm_linux.cpp
+index ba84788a..c22281f7 100644
+--- a/hotspot/src/os/linux/vm/jvm_linux.cpp
++++ b/hotspot/src/os/linux/vm/jvm_linux.cpp
+@@ -154,7 +154,9 @@ struct siglabel siglabels[] = {
+ #ifdef SIGSTKFLT
+   "STKFLT",     SIGSTKFLT,      /* Stack fault.  */
+ #endif
++#ifdef SIGCLD
+   "CLD",        SIGCLD,         /* Same as SIGCHLD (System V).  */
++#endif
+   "CHLD",       SIGCHLD,        /* Child status has changed (POSIX).  */
+   "CONT",       SIGCONT,        /* Continue (POSIX).  */
+   "STOP",       SIGSTOP,        /* Stop, unblockable (POSIX).  */
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/0007-jdk-use-correct-include-for-poll.patch b/recipes-core/openjdk/patches-openjdk-8/0007-jdk-use-correct-include-for-poll.patch
new file mode 100644
index 0000000..af4dde9
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/0007-jdk-use-correct-include-for-poll.patch
@@ -0,0 +1,172 @@
+From df9c5738c4a8a00ba65948503ff0c0cfa2f17e95 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 09:28:06 +0000
+Subject: [PATCH 7/9] jdk: use correct include for poll
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Compiling against musl-libc gives the following warning (which is
+treated as error due to -Werror:
+| In file included from jdk/src/solaris/native/java/net/net_util_md.h:36:0,
+|                  from jdk/src/share/native/java/net/net_util.h:31,
+|                  from jdk/src/solaris/native/java/net/InetAddressImplFactory.c:28:
+| usr/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Wcpp]
+|  #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
+|   ^~~~~~~
+etc.
+
+To use poll(), poll.h needs to be included, even on glibc - do so using
+the following command:
+    for i in $(git grep sys/poll\.h jdk | cut -f 1 -d : | sort -u) ; do
+        sed -e 's,sys/poll\.h,poll.h,g' -i ${i}
+    done
+
+Upstream-Status: Pending
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/aix/native/java/net/aix_close.c                 | 2 +-
+ jdk/src/aix/native/sun/nio/ch/AixPollPort.c             | 2 +-
+ jdk/src/solaris/native/java/net/PlainSocketImpl.c       | 2 +-
+ jdk/src/solaris/native/java/net/bsd_close.c             | 2 +-
+ jdk/src/solaris/native/java/net/linux_close.c           | 2 +-
+ jdk/src/solaris/native/java/net/net_util_md.h           | 2 +-
+ jdk/src/solaris/native/sun/nio/ch/DevPollArrayWrapper.c | 2 +-
+ jdk/src/solaris/native/sun/nio/ch/Net.c                 | 2 +-
+ jdk/src/solaris/native/sun/nio/fs/LinuxWatchService.c   | 2 +-
+ jdk/src/solaris/transport/socket/socket_md.c            | 2 +-
+ 10 files changed, 10 insertions(+), 10 deletions(-)
+
+diff --git a/jdk/src/aix/native/java/net/aix_close.c b/jdk/src/aix/native/java/net/aix_close.c
+index 8c070e4b..126f4d7d 100644
+--- a/jdk/src/aix/native/java/net/aix_close.c
++++ b/jdk/src/aix/native/java/net/aix_close.c
+@@ -51,7 +51,7 @@
+ #include <unistd.h>
+ #include <errno.h>
+ 
+-#include <sys/poll.h>
++#include <poll.h>
+ 
+ /*
+  * Stack allocated by thread when doing blocking operation
+diff --git a/jdk/src/aix/native/sun/nio/ch/AixPollPort.c b/jdk/src/aix/native/sun/nio/ch/AixPollPort.c
+index 70064b89..c10c602b 100644
+--- a/jdk/src/aix/native/sun/nio/ch/AixPollPort.c
++++ b/jdk/src/aix/native/sun/nio/ch/AixPollPort.c
+@@ -34,7 +34,7 @@
+ #include <unistd.h>
+ #include <sys/types.h>
+ #include <sys/socket.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <sys/pollset.h>
+ #include <fcntl.h>
+ #include <stddef.h>
+diff --git a/jdk/src/solaris/native/java/net/PlainSocketImpl.c b/jdk/src/solaris/native/java/net/PlainSocketImpl.c
+index 71cbdf8c..170957e7 100644
+--- a/jdk/src/solaris/native/java/net/PlainSocketImpl.c
++++ b/jdk/src/solaris/native/java/net/PlainSocketImpl.c
+@@ -28,7 +28,7 @@
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ #if defined(__linux__) && !defined(USE_SELECT)
+-#include <sys/poll.h>
++#include <poll.h>
+ #endif
+ #include <netinet/tcp.h>        /* Defines TCP_NODELAY, needed for 2.6 */
+ #include <netinet/in.h>
+diff --git a/jdk/src/solaris/native/java/net/bsd_close.c b/jdk/src/solaris/native/java/net/bsd_close.c
+index af57cef3..64d04088 100644
+--- a/jdk/src/solaris/native/java/net/bsd_close.c
++++ b/jdk/src/solaris/native/java/net/bsd_close.c
+@@ -36,7 +36,7 @@
+ #include <sys/uio.h>
+ #include <unistd.h>
+ #include <errno.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ 
+ /*
+  * Stack allocated by thread when doing blocking operation
+diff --git a/jdk/src/solaris/native/java/net/linux_close.c b/jdk/src/solaris/native/java/net/linux_close.c
+index 98e1ce09..85fba135 100644
+--- a/jdk/src/solaris/native/java/net/linux_close.c
++++ b/jdk/src/solaris/native/java/net/linux_close.c
+@@ -34,7 +34,7 @@
+ #include <sys/uio.h>
+ #include <unistd.h>
+ #include <errno.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ 
+ /*
+  * Stack allocated by thread when doing blocking operation
+diff --git a/jdk/src/solaris/native/java/net/net_util_md.h b/jdk/src/solaris/native/java/net/net_util_md.h
+index a48446de..8915b68a 100644
+--- a/jdk/src/solaris/native/java/net/net_util_md.h
++++ b/jdk/src/solaris/native/java/net/net_util_md.h
+@@ -33,7 +33,7 @@
+ #include <unistd.h>
+ 
+ #ifndef USE_SELECT
+-#include <sys/poll.h>
++#include <poll.h>
+ #endif
+ 
+ 
+diff --git a/jdk/src/solaris/native/sun/nio/ch/DevPollArrayWrapper.c b/jdk/src/solaris/native/sun/nio/ch/DevPollArrayWrapper.c
+index 6860a167..20849dab 100644
+--- a/jdk/src/solaris/native/sun/nio/ch/DevPollArrayWrapper.c
++++ b/jdk/src/solaris/native/sun/nio/ch/DevPollArrayWrapper.c
+@@ -28,7 +28,7 @@
+ #include "jvm.h"
+ #include "jlong.h"
+ #include "sun_nio_ch_DevPollArrayWrapper.h"
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <unistd.h>
+ #include <sys/time.h>
+ 
+diff --git a/jdk/src/solaris/native/sun/nio/ch/Net.c b/jdk/src/solaris/native/sun/nio/ch/Net.c
+index 73560ad6..a3720055 100644
+--- a/jdk/src/solaris/native/sun/nio/ch/Net.c
++++ b/jdk/src/solaris/native/sun/nio/ch/Net.c
+@@ -23,7 +23,7 @@
+  * questions.
+  */
+ 
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ #include <string.h>
+diff --git a/jdk/src/solaris/native/sun/nio/fs/LinuxWatchService.c b/jdk/src/solaris/native/sun/nio/fs/LinuxWatchService.c
+index 375aaa48..7606e9ba 100644
+--- a/jdk/src/solaris/native/sun/nio/fs/LinuxWatchService.c
++++ b/jdk/src/solaris/native/sun/nio/fs/LinuxWatchService.c
+@@ -32,7 +32,7 @@
+ #include <dlfcn.h>
+ #include <sys/types.h>
+ #include <sys/socket.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #include <sys/inotify.h>
+ 
+ #include "sun_nio_fs_LinuxWatchService.h"
+diff --git a/jdk/src/solaris/transport/socket/socket_md.c b/jdk/src/solaris/transport/socket/socket_md.c
+index 33e062e0..819fcabd 100644
+--- a/jdk/src/solaris/transport/socket/socket_md.c
++++ b/jdk/src/solaris/transport/socket/socket_md.c
+@@ -37,7 +37,7 @@
+ #include <thread.h>
+ #else
+ #include <pthread.h>
+-#include <sys/poll.h>
++#include <poll.h>
+ #endif
+ 
+ #include "socket_md.h"
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/0008-jdk-use-correct-include-for-signal.patch b/recipes-core/openjdk/patches-openjdk-8/0008-jdk-use-correct-include-for-signal.patch
new file mode 100644
index 0000000..406de52
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/0008-jdk-use-correct-include-for-signal.patch
@@ -0,0 +1,89 @@
+From a063ee68bc0dd7dbf9737df4ee191e98796f2f6a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 09:28:06 +0000
+Subject: [PATCH 8/9] jdk: use correct include for signal
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Compiling against musl-libc gives the following warning (which is
+treated as error due to -Werror:
+| In file included from jdk/src/solaris/javavm/export/jvm_md.h:68:0,
+|                  from jdk/src/share/javavm/export/jvm.h:32,
+|                  from jdk/src/share/native/java/net/net_util.h:29,
+|                  from jdk/src/solaris/native/java/net/InetAddressImplFactory.c:28:
+| usr/include/sys/signal.h:1:2: warning: #warning redirecting incorrect #include <sys/signal.h> to <signal.h> [-Wcpp]
+|  #warning redirecting incorrect #include <sys/signal.h> to <signal.h>
+|   ^~~~~~~
+etc.
+
+As per the message, signal.h needs to be included instead - do so using
+the following command:
+    for i in $(git grep sys/signal\.h jdk | cut -f 1 -d : | sort -u) ; do
+        sed -e 's,sys/signal\.h,signal.h,g' -i ${i}
+    done
+
+Upstream-Status: Pending
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/aix/native/sun/nio/ch/AixNativeThread.c  | 2 +-
+ jdk/src/macosx/javavm/export/jvm_md.h            | 2 +-
+ jdk/src/solaris/javavm/export/jvm_md.h           | 2 +-
+ jdk/src/solaris/native/sun/nio/ch/NativeThread.c | 2 +-
+ 4 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/jdk/src/aix/native/sun/nio/ch/AixNativeThread.c b/jdk/src/aix/native/sun/nio/ch/AixNativeThread.c
+index c0d58579..c4abb7ae 100644
+--- a/jdk/src/aix/native/sun/nio/ch/AixNativeThread.c
++++ b/jdk/src/aix/native/sun/nio/ch/AixNativeThread.c
+@@ -32,7 +32,7 @@
+ #include "sun_nio_ch_NativeThread.h"
+ 
+ #include <pthread.h>
+-#include <sys/signal.h>
++#include <signal.h>
+ 
+ /* Also defined in src/aix/native/java/net/aix_close.c */
+ #define INTERRUPT_SIGNAL (SIGRTMAX - 1)
+diff --git a/jdk/src/macosx/javavm/export/jvm_md.h b/jdk/src/macosx/javavm/export/jvm_md.h
+index 012bb1ba..0b575768 100644
+--- a/jdk/src/macosx/javavm/export/jvm_md.h
++++ b/jdk/src/macosx/javavm/export/jvm_md.h
+@@ -60,7 +60,7 @@
+ #include <sys/stat.h>
+ #include <fcntl.h>
+ #include <errno.h>
+-#include <sys/signal.h>
++#include <signal.h>
+ 
+ /* O Flags */
+ 
+diff --git a/jdk/src/solaris/javavm/export/jvm_md.h b/jdk/src/solaris/javavm/export/jvm_md.h
+index 5c681914..62415ee2 100644
+--- a/jdk/src/solaris/javavm/export/jvm_md.h
++++ b/jdk/src/solaris/javavm/export/jvm_md.h
+@@ -65,7 +65,7 @@
+ #include <sys/stat.h>
+ #include <fcntl.h>
+ #include <errno.h>
+-#include <sys/signal.h>
++#include <signal.h>
+ 
+ /* O Flags */
+ 
+diff --git a/jdk/src/solaris/native/sun/nio/ch/NativeThread.c b/jdk/src/solaris/native/sun/nio/ch/NativeThread.c
+index 5e2a78b7..204f0441 100644
+--- a/jdk/src/solaris/native/sun/nio/ch/NativeThread.c
++++ b/jdk/src/solaris/native/sun/nio/ch/NativeThread.c
+@@ -34,7 +34,7 @@
+ 
+ #ifdef __linux__
+   #include <pthread.h>
+-  #include <sys/signal.h>
++  #include <signal.h>
+   /* Also defined in net/linux_close.c */
+   #define INTERRUPT_SIGNAL (__SIGRTMAX - 2)
+ #elif __solaris__
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/0009-jdk-disable-backtrace-musl-build-fix.patch b/recipes-core/openjdk/patches-openjdk-8/0009-jdk-disable-backtrace-musl-build-fix.patch
new file mode 100644
index 0000000..68f3d7a
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/0009-jdk-disable-backtrace-musl-build-fix.patch
@@ -0,0 +1,45 @@
+From 8ef989f82b29655e8d4532f14d5aa12a2999d850 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Fri, 2 Mar 2018 13:58:07 +0000
+Subject: [PATCH 10/10] jdk: disable backtrace() (musl build fix)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+musl doesn't implement / provide backtrace() and friends or
+the corresponding header files. This is all glibc specific.
+
+Use appropriate #ifdef to disable their use on musl and thus
+to fix the build on musl.
+
+Upstream-Status: Pending
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/solaris/native/sun/xawt/XToolkit.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/jdk/src/solaris/native/sun/xawt/XToolkit.c b/jdk/src/solaris/native/sun/xawt/XToolkit.c
+index 71d41f37..d3dc47cb 100644
+--- a/jdk/src/solaris/native/sun/xawt/XToolkit.c
++++ b/jdk/src/solaris/native/sun/xawt/XToolkit.c
+@@ -27,7 +27,7 @@
+ #include <X11/Xutil.h>
+ #include <X11/Xos.h>
+ #include <X11/Xatom.h>
+-#ifdef __linux__
++#if defined(__linux__) && defined(__GLIBC__)
+ #include <execinfo.h>
+ #endif
+ 
+@@ -799,7 +799,7 @@ JNIEXPORT jstring JNICALL Java_sun_awt_X11_XToolkit_getEnv
+     return ret;
+ }
+ 
+-#ifdef __linux__
++#if defined(__linux__) && defined(__GLIBC__)
+ void print_stack(void)
+ {
+   void *array[10];
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0001-hotspot-stop-using-obsolete-isnanf.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0001-hotspot-stop-using-obsolete-isnanf.patch
new file mode 100644
index 0000000..e165170
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0001-hotspot-stop-using-obsolete-isnanf.patch
@@ -0,0 +1,42 @@
+From 1624e2dd3739fe208efa13b31abf4bc53ae2e5c1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 11:24:44 +0000
+Subject: [PATCH 1/9] hotspot: stop using obsolete isnanf()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Compiling against musl-libc gives the following error:
+| hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp: In function 'int g_isnan(float)':
+| hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp:238:39: error: 'isnanf' was not declared in this scope
+|  inline int g_isnan(float  f) { return isnanf(f); }
+|                                        ^~~~~~
+
+isnanf() is obsolete, and musl doesn't implement it. isnan()
+is the right thing to use for all types (float and double),
+replacing isnanf(), even on glibc.
+
+Do so.
+
+Upstream-Status: Pending
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp b/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp
+index efa0b4e1..6df2302e 100644
+--- a/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp
++++ b/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp
+@@ -235,7 +235,7 @@ inline int g_isnan(double f) { return isnand(f); }
+ #elif defined(__APPLE__)
+ inline int g_isnan(double f) { return isnan(f); }
+ #elif defined(LINUX) || defined(_ALLBSD_SOURCE)
+-inline int g_isnan(float  f) { return isnanf(f); }
++inline int g_isnan(float  f) { return isnan(f); }
+ inline int g_isnan(double f) { return isnan(f); }
+ #else
+ #error "missing platform-specific definition here"
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0002-jdk-give-a-much-bigger-buffer-to-getmntent_r.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0002-jdk-give-a-much-bigger-buffer-to-getmntent_r.patch
new file mode 100644
index 0000000..1874f87
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0002-jdk-give-a-much-bigger-buffer-to-getmntent_r.patch
@@ -0,0 +1,103 @@
+From 2ba0f3fae90f2d2c310663e4b39e90f969116241 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 15:59:09 +0000
+Subject: [PATCH 2/9] jdk: give a much bigger buffer to getmntent_r()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+https://bugs.alpinelinux.org/issues/7093
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ .../native/sun/nio/fs/LinuxNativeDispatcher.c      | 29 +++++++++++++++-------
+ 1 file changed, 20 insertions(+), 9 deletions(-)
+
+diff --git a/jdk/src/solaris/native/sun/nio/fs/LinuxNativeDispatcher.c b/jdk/src/solaris/native/sun/nio/fs/LinuxNativeDispatcher.c
+index c8500db5..d0b85d67 100644
+--- a/jdk/src/solaris/native/sun/nio/fs/LinuxNativeDispatcher.c
++++ b/jdk/src/solaris/native/sun/nio/fs/LinuxNativeDispatcher.c
+@@ -33,6 +33,7 @@
+ #include <dlfcn.h>
+ #include <errno.h>
+ #include <mntent.h>
++#include <limits.h>
+ 
+ #include "sun_nio_fs_LinuxNativeDispatcher.h"
+ 
+@@ -173,8 +174,8 @@ Java_sun_nio_fs_LinuxNativeDispatcher_getmntent(JNIEnv* env, jclass this,
+     jlong value, jobject entry)
+ {
+     struct mntent ent;
+-    char buf[1024];
+-    int buflen = sizeof(buf);
++    char *buf = NULL;
++    const size_t buflen = PATH_MAX * 4;
+     struct mntent* m;
+     FILE* fp = jlong_to_ptr(value);
+     jsize len;
+@@ -183,10 +184,17 @@ Java_sun_nio_fs_LinuxNativeDispatcher_getmntent(JNIEnv* env, jclass this,
+     char* dir;
+     char* fstype;
+     char* options;
++    jint res = -1;
+ 
+-    m = getmntent_r(fp, &ent, (char*)&buf, buflen);
+-    if (m == NULL)
++    buf = malloc(buflen);
++    if (buf == NULL) {
++        JNU_ThrowOutOfMemoryError(env, "native heap");
+         return -1;
++    }
++    m = getmntent_r(fp, &ent, buf, buflen);
++    if (m == NULL)
++        goto out;
++
+     name = m->mnt_fsname;
+     dir = m->mnt_dir;
+     fstype = m->mnt_type;
+@@ -195,32 +203,35 @@ Java_sun_nio_fs_LinuxNativeDispatcher_getmntent(JNIEnv* env, jclass this,
+     len = strlen(name);
+     bytes = (*env)->NewByteArray(env, len);
+     if (bytes == NULL)
+-        return -1;
++        goto out;
+     (*env)->SetByteArrayRegion(env, bytes, 0, len, (jbyte*)name);
+     (*env)->SetObjectField(env, entry, entry_name, bytes);
+ 
+     len = strlen(dir);
+     bytes = (*env)->NewByteArray(env, len);
+     if (bytes == NULL)
+-        return -1;
++        goto out;
+     (*env)->SetByteArrayRegion(env, bytes, 0, len, (jbyte*)dir);
+     (*env)->SetObjectField(env, entry, entry_dir, bytes);
+ 
+     len = strlen(fstype);
+     bytes = (*env)->NewByteArray(env, len);
+     if (bytes == NULL)
+-        return -1;
++        goto out;
+     (*env)->SetByteArrayRegion(env, bytes, 0, len, (jbyte*)fstype);
+     (*env)->SetObjectField(env, entry, entry_fstype, bytes);
+ 
+     len = strlen(options);
+     bytes = (*env)->NewByteArray(env, len);
+     if (bytes == NULL)
+-        return -1;
++        goto out;
+     (*env)->SetByteArrayRegion(env, bytes, 0, len, (jbyte*)options);
+     (*env)->SetObjectField(env, entry, entry_options, bytes);
+ 
+-    return 0;
++    res = 0;
++out:
++    free(buf);
++    return res;
+ }
+ 
+ JNIEXPORT void JNICALL
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0003-jdk-fix-libjvm-load-on-musl-set-LD_LIBRARY_PATH.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0003-jdk-fix-libjvm-load-on-musl-set-LD_LIBRARY_PATH.patch
new file mode 100644
index 0000000..8ad000d
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0003-jdk-fix-libjvm-load-on-musl-set-LD_LIBRARY_PATH.patch
@@ -0,0 +1,37 @@
+From 4429d73853b3938a53a6058cc0dcaac08d191995 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 16:01:54 +0000
+Subject: [PATCH 3/9] jdk: fix libjvm load on musl (set LD_LIBRARY_PATH)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+musl needs LD_LIBRARY_PATH set because when .so is opened
+with dlopen(/abs/path) it does not qualify for providing
+symbols for NEEDED dependency.
+
+Patch taken from Alpine Linux:
+    https://git.alpinelinux.org/cgit/aports/tree/community/openjdk8/icedtea-jdk-fix-libjvm-load.patch?id=4d34f29dddd3934358df7a9607706d09ae0433c3
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/solaris/bin/java_md_solinux.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/jdk/src/solaris/bin/java_md_solinux.c b/jdk/src/solaris/bin/java_md_solinux.c
+index 6d977109..e9a0a1eb 100644
+--- a/jdk/src/solaris/bin/java_md_solinux.c
++++ b/jdk/src/solaris/bin/java_md_solinux.c
+@@ -291,6 +291,8 @@ RequiresSetenv(int wanted, const char *jvmpath) {
+     char *dmllp = NULL;
+     char *p; /* a utility pointer */
+ 
++    return JNI_TRUE;
++
+ #ifdef AIX
+     /* We always have to set the LIBPATH on AIX because ld doesn't support $ORIGIN. */
+     return JNI_TRUE;
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0004-jdk-remove-sysctl.h-include-musl-build-fix.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0004-jdk-remove-sysctl.h-include-musl-build-fix.patch
new file mode 100644
index 0000000..086f669
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0004-jdk-remove-sysctl.h-include-musl-build-fix.patch
@@ -0,0 +1,90 @@
+From 86945e6df4dc15d5c2402a656d1d9d1b25945fb2 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 09:28:06 +0000
+Subject: [PATCH 4/9] jdk: remove sysctl.h include (musl build fix)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Compiling against musl-libc gives the following warning (which is
+treated as error due to -Werror:
+| jdk/src/solaris/native/java/net/PlainDatagramSocketImpl.c:44:10: fatal error: sys/sysctl.h: No such file or directory
+|  #include <sys/sysctl.h>
+|           ^~~~~~~~~~~~~~
+etc.
+
+Remove it, at things seem to work without as well.
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/solaris/native/java/net/PlainDatagramSocketImpl.c   | 1 -
+ jdk/src/solaris/native/java/net/PlainSocketImpl.c           | 1 -
+ jdk/src/solaris/native/java/net/net_util_md.c               | 1 -
+ jdk/src/solaris/native/sun/management/OperatingSystemImpl.c | 1 -
+ jdk/src/solaris/native/sun/net/portconfig.c                 | 1 -
+ 5 files changed, 5 deletions(-)
+
+diff --git a/jdk/src/solaris/native/java/net/PlainDatagramSocketImpl.c b/jdk/src/solaris/native/java/net/PlainDatagramSocketImpl.c
+index c48d1153..e3519774 100644
+--- a/jdk/src/solaris/native/java/net/PlainDatagramSocketImpl.c
++++ b/jdk/src/solaris/native/java/net/PlainDatagramSocketImpl.c
+@@ -41,7 +41,6 @@
+ #endif
+ #ifdef __linux__
+ #include <unistd.h>
+-#include <sys/sysctl.h>
+ #include <sys/utsname.h>
+ #include <netinet/ip.h>
+ 
+diff --git a/jdk/src/solaris/native/java/net/PlainSocketImpl.c b/jdk/src/solaris/native/java/net/PlainSocketImpl.c
+index 170957e7..9aafbc09 100644
+--- a/jdk/src/solaris/native/java/net/PlainSocketImpl.c
++++ b/jdk/src/solaris/native/java/net/PlainSocketImpl.c
+@@ -43,7 +43,6 @@
+ #endif
+ #ifdef __linux__
+ #include <unistd.h>
+-#include <sys/sysctl.h>
+ #endif
+ 
+ #include "jvm.h"
+diff --git a/jdk/src/solaris/native/java/net/net_util_md.c b/jdk/src/solaris/native/java/net/net_util_md.c
+index eae347cf..a0ba6be0 100644
+--- a/jdk/src/solaris/native/java/net/net_util_md.c
++++ b/jdk/src/solaris/native/java/net/net_util_md.c
+@@ -40,7 +40,6 @@
+ #else
+ #include <limits.h>
+ #include <sys/param.h>
+-#include <sys/sysctl.h>
+ #ifndef MAXINT
+ #define MAXINT INT_MAX
+ #endif
+diff --git a/jdk/src/solaris/native/sun/management/OperatingSystemImpl.c b/jdk/src/solaris/native/sun/management/OperatingSystemImpl.c
+index aa21f019..0b895569 100644
+--- a/jdk/src/solaris/native/sun/management/OperatingSystemImpl.c
++++ b/jdk/src/solaris/native/sun/management/OperatingSystemImpl.c
+@@ -33,7 +33,6 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #if defined(_ALLBSD_SOURCE)
+-#include <sys/sysctl.h>
+ #ifdef __APPLE__
+ #include <sys/param.h>
+ #include <sys/mount.h>
+diff --git a/jdk/src/solaris/native/sun/net/portconfig.c b/jdk/src/solaris/native/sun/net/portconfig.c
+index 56730f0f..5209c828 100644
+--- a/jdk/src/solaris/native/sun/net/portconfig.c
++++ b/jdk/src/solaris/native/sun/net/portconfig.c
+@@ -29,7 +29,6 @@
+ #include <errno.h>
+ 
+ #if defined(_ALLBSD_SOURCE)
+-#include <sys/sysctl.h>
+ #endif
+ 
+ #include "jni.h"
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0005-hotspot-disable-agent-build.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0005-hotspot-disable-agent-build.patch
new file mode 100644
index 0000000..913b318
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0005-hotspot-disable-agent-build.patch
@@ -0,0 +1,88 @@
+From 19b1d6b4dc64a1c44a8f90776a489eee5c76463d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Tue, 27 Feb 2018 15:12:08 +0000
+Subject: [PATCH 5/9] hotspot: disable agent build
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+the agent needs thread_db, which doesn't exist in musl
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ common/autoconf/jdk-options.m4           | 2 +-
+ hotspot/make/linux/makefiles/defs.make   | 4 ++++
+ hotspot/make/linux/makefiles/sa.make     | 2 +-
+ hotspot/make/linux/makefiles/saproc.make | 2 ++
+ 4 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/common/autoconf/jdk-options.m4 b/common/autoconf/jdk-options.m4
+index a8f71705..036963ac 100644
+--- a/common/autoconf/jdk-options.m4
++++ b/common/autoconf/jdk-options.m4
+@@ -151,7 +151,7 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JVM_VARIANTS],
+   AC_SUBST(JVM_VARIANT_ZEROSHARK)
+   AC_SUBST(JVM_VARIANT_CORE)
+ 
+-  INCLUDE_SA=true
++  INCLUDE_SA=false
+   if test "x$JVM_VARIANT_ZERO" = xtrue ; then
+     INCLUDE_SA=false
+   fi
+diff --git a/hotspot/make/linux/makefiles/defs.make b/hotspot/make/linux/makefiles/defs.make
+index 3af5878a..d10bab95 100644
+--- a/hotspot/make/linux/makefiles/defs.make
++++ b/hotspot/make/linux/makefiles/defs.make
+@@ -286,6 +286,7 @@ ifeq ($(JVM_VARIANT_MINIMAL1),true)
+   endif
+ endif
+ 
++ifeq (0,1)
+ # Serviceability Binaries
+ # No SA Support for PPC, IA64, ARM or zero
+ ADD_SA_BINARIES/x86   = $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.$(LIBRARY_SUFFIX) \
+@@ -305,6 +306,9 @@ ADD_SA_BINARIES/ppc   =
+ ADD_SA_BINARIES/ia64  =
+ ADD_SA_BINARIES/arm   =
+ ADD_SA_BINARIES/zero  =
++else
++ADD_SA_BINARIES/$(HS_ARCH) =
++endif
+ 
+ -include $(HS_ALT_MAKE)/linux/makefiles/defs.make
+ 
+diff --git a/hotspot/make/linux/makefiles/sa.make b/hotspot/make/linux/makefiles/sa.make
+index 66a7b945..61cc7244 100644
+--- a/hotspot/make/linux/makefiles/sa.make
++++ b/hotspot/make/linux/makefiles/sa.make
+@@ -62,7 +62,7 @@ SA_PROPERTIES = $(SA_CLASSDIR)/sa.properties
+ 
+ all: 
+        if [ -d $(AGENT_DIR) -a "$(SRCARCH)" != "ia64" \
+-             -a "$(SRCARCH)" != "zero" ] ; then \
++             -a "$(SRCARCH)" != "zero" ] && [ 0 -eq 1 ] ; then \
+           $(MAKE) -f sa.make $(GENERATED)/sa-jdi.jar; \
+        fi
+ 
+diff --git a/hotspot/make/linux/makefiles/saproc.make b/hotspot/make/linux/makefiles/saproc.make
+index 6579c8e1..8f29004c 100644
+--- a/hotspot/make/linux/makefiles/saproc.make
++++ b/hotspot/make/linux/makefiles/saproc.make
+@@ -62,11 +62,13 @@ endif
+ # if $(AGENT_DIR) does not exist, we don't build SA
+ # also, we don't build SA on Itanium or zero.
+ 
++ifeq (0,1)
+ ifneq ($(wildcard $(AGENT_DIR)),)
+ ifneq ($(filter-out ia64 zero,$(SRCARCH)),)
+   BUILDLIBSAPROC = $(LIBSAPROC)
+ endif
+ endif
++endif
+ 
+ ifneq ($(ALT_SASRCDIR),)
+ ALT_SAINCDIR=-I$(ALT_SASRCDIR) -DALT_SASRCDIR
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0006-hotspot-os_linux-remove-glibc-dependencies.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0006-hotspot-os_linux-remove-glibc-dependencies.patch
new file mode 100644
index 0000000..f0696fc
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0006-hotspot-os_linux-remove-glibc-dependencies.patch
@@ -0,0 +1,75 @@
+From a02a9fbc3f1fed181504bdb5b0a16863247f92fc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Fri, 2 Mar 2018 10:11:51 +0000
+Subject: [PATCH 6/9] hotspot: os_linux: remove glibc dependencies
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+* gnu/libc-version.h doesn't exist in musl
+    | hotspot/src/os/linux/vm/os_linux.cpp:97:11: fatal error: gnu/libc-version.h: No such file or directory
+    |  # include <gnu/libc-version.h>
+    |            ^~~~~~~~~~~~~~~~~~~~
+
+* dlvsym() is a GNU extension and doesn't exist in musl
+    | hotspot/src/os/linux/vm/os_linux.cpp:2846:13: error: 'dlvsym' was not declared in this scope
+    |    void *f = dlvsym(handle, name, "libnuma_1.1");
+    |              ^~~~~~
+    | hotspot/src/os/linux/vm/os_linux.cpp:2846:13: note: suggested alternative: 'dlsym'
+    |    void *f = dlvsym(handle, name, "libnuma_1.1");
+    |              ^~~~~~
+    |              dlsym
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ hotspot/src/os/linux/vm/os_linux.cpp | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/hotspot/src/os/linux/vm/os_linux.cpp b/hotspot/src/os/linux/vm/os_linux.cpp
+index 044a70a6..3137796a 100644
+--- a/hotspot/src/os/linux/vm/os_linux.cpp
++++ b/hotspot/src/os/linux/vm/os_linux.cpp
+@@ -94,7 +94,6 @@
+ # include <string.h>
+ # include <syscall.h>
+ # include <sys/sysinfo.h>
+-# include <gnu/libc-version.h>
+ # include <sys/ipc.h>
+ # include <sys/shm.h>
+ # include <link.h>
+@@ -530,6 +529,13 @@ void os::Linux::hotspot_sigmask(Thread* thread) {
+ // detecting pthread library
+ 
+ void os::Linux::libpthread_init() {
++#if 1
++  // Hard code supported musl compatible settings (taken from alpine linux)
++  os::Linux::set_glibc_version("glibc 2.9");
++  os::Linux::set_libpthread_version("NPTL");
++  os::Linux::set_is_NPTL();
++  os::Linux::set_is_floating_stack();
++#else
+   // Save glibc and pthread version strings. Note that _CS_GNU_LIBC_VERSION
+   // and _CS_GNU_LIBPTHREAD_VERSION are supported in glibc >= 2.3.2. Use a
+   // generic name for earlier versions.
+@@ -588,6 +594,7 @@ void os::Linux::libpthread_init() {
+   if (os::Linux::is_NPTL() || os::Linux::supports_variable_stack_size()) {
+      os::Linux::set_is_floating_stack();
+   }
++#endif
+ }
+ 
+ /////////////////////////////////////////////////////////////////////////////
+@@ -2814,6 +2821,9 @@ int os::Linux::sched_getcpu_syscall(void) {
+   return (retval == -1) ? retval : cpu;
+ }
+ 
++// musl doesn't have dlvsym()
++#define dlvsym(h,s,v)  dlsym(h,s)
++
+ // Something to do with the numa-aware allocator needs these symbols
+ extern "C" JNIEXPORT void numa_warn(int number, char *where, ...) { }
+ extern "C" JNIEXPORT void numa_error(char *where) { }
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0007-hotspot-os_linux_x86-remove-glibc-dependencies-fpu_c.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0007-hotspot-os_linux_x86-remove-glibc-dependencies-fpu_c.patch
new file mode 100644
index 0000000..fcad102
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0007-hotspot-os_linux_x86-remove-glibc-dependencies-fpu_c.patch
@@ -0,0 +1,46 @@
+From dc0217d20e3c96203c81acda1c02652755bfcefb Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Fri, 2 Mar 2018 10:24:11 +0000
+Subject: [PATCH 7/9] hotspot: os_linux_x86: remove glibc dependencies
+ (fpu_control.h)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+musl doesn't provide fpu_control.h, open-code the relevant
+bits instead.
+
+Patch adopted from Alpine linux:
+    https://git.alpinelinux.org/cgit/aports/tree/community/openjdk8/icedtea-hotspot-musl.patch?id=4d34f29dddd3934358df7a9607706d09ae0433c3
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp b/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
+index fb96738a..982ce84d 100644
+--- a/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
++++ b/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
+@@ -72,7 +72,6 @@
+ # include <pwd.h>
+ # include <poll.h>
+ # include <ucontext.h>
+-# include <fpu_control.h>
+ 
+ #ifdef AMD64
+ #define REG_SP REG_RSP
+@@ -543,6 +542,9 @@ JVM_handle_linux_signal(int sig,
+   ShouldNotReachHere();
+ }
+ 
++#define _FPU_GETCW(cw) __asm__ __volatile__ ("fnstcw %0" : "=m" (*&cw))
++#define _FPU_SETCW(cw) __asm__ __volatile__ ("fldcw %0" : : "m" (*&cw))
++
+ void os::Linux::init_thread_fpu_state(void) {
+ #ifndef AMD64
+   // set fpu to 53 bit precision
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0008-jdk-musl-build-fix-use-SIGRTMAX-rather-than-__SIGRTM.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0008-jdk-musl-build-fix-use-SIGRTMAX-rather-than-__SIGRTM.patch
new file mode 100644
index 0000000..c15895f
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0008-jdk-musl-build-fix-use-SIGRTMAX-rather-than-__SIGRTM.patch
@@ -0,0 +1,69 @@
+From ec37e9e5663611e49c7c976d34450ea6b90d0f24 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Fri, 2 Mar 2018 13:37:20 +0000
+Subject: [PATCH 8/9] jdk: musl build fix (use SIGRTMAX rather than __SIGRTMAX)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+__SIGRTMAX is a private glibc symbol, which isn't provided
+by musl, thus failing compilation.
+
+From https://sourceware.org/ml/rda/2005-q4/msg00011.html
+    On a GNU(ish) system, [SIGRTMIN / SIGRTMAX] these macros are defined
+    to call functions which compute the actual minimum and maximum
+    realtime signal numbers.  In particular, this computation will exclude
+    any signals used by the C library for its own purposes.  These signals
+    could include signals related to thread debugging or, more
+    importantly, for thread cancellation.
+[...]
+    [The __SIGRTMIN and __SIGRTMAX] constants represent a hard minumum
+    and maximum.
+
+Patch taken from Alpine Linux:
+    https://git.alpinelinux.org/cgit/aports/tree/community/openjdk8/icedtea-jdk-musl.patch?id=4d34f29dddd3934358df7a9607706d09ae0433c3
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/solaris/native/java/net/linux_close.c    | 3 ++-
+ jdk/src/solaris/native/sun/nio/ch/NativeThread.c | 2 +-
+ 2 files changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/jdk/src/solaris/native/java/net/linux_close.c b/jdk/src/solaris/native/java/net/linux_close.c
+index 85fba135..e635dafd 100644
+--- a/jdk/src/solaris/native/java/net/linux_close.c
++++ b/jdk/src/solaris/native/java/net/linux_close.c
+@@ -56,7 +56,7 @@ typedef struct {
+ /*
+  * Signal to unblock thread
+  */
+-static int sigWakeup = (__SIGRTMAX - 2);
++static int sigWakeup;
+ 
+ /*
+  * The fd table and the number of file descriptors
+@@ -95,6 +95,7 @@ static void __attribute((constructor)) init() {
+     /*
+      * Setup the signal handler
+      */
++    sigWakeup = SIGRTMAX - 2;
+     sa.sa_handler = sig_wakeup;
+     sa.sa_flags   = 0;
+     sigemptyset(&sa.sa_mask);
+diff --git a/jdk/src/solaris/native/sun/nio/ch/NativeThread.c b/jdk/src/solaris/native/sun/nio/ch/NativeThread.c
+index 204f0441..f5483bbd 100644
+--- a/jdk/src/solaris/native/sun/nio/ch/NativeThread.c
++++ b/jdk/src/solaris/native/sun/nio/ch/NativeThread.c
+@@ -36,7 +36,7 @@
+   #include <pthread.h>
+   #include <signal.h>
+   /* Also defined in net/linux_close.c */
+-  #define INTERRUPT_SIGNAL (__SIGRTMAX - 2)
++  #define INTERRUPT_SIGNAL (SIGRTMAX - 2)
+ #elif __solaris__
+   #include <thread.h>
+   #include <signal.h>
+-- 
+2.16.2
+
diff --git a/recipes-core/openjdk/patches-openjdk-8/musl-0009-jdk-musl-has-gethostby_r.patch b/recipes-core/openjdk/patches-openjdk-8/musl-0009-jdk-musl-has-gethostby_r.patch
new file mode 100644
index 0000000..c033b77
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/musl-0009-jdk-musl-has-gethostby_r.patch
@@ -0,0 +1,35 @@
+From 276fb5b2d57cf0257dc82e84d80213fe3eec6e34 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+Date: Fri, 2 Mar 2018 13:57:22 +0000
+Subject: [PATCH 9/9] jdk: musl has gethostby_r()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fix the #ifdef to also allow use of it when using musl.
+
+Patch taken from Alpine Linux:
+    https://git.alpinelinux.org/cgit/aports/tree/community/openjdk8/icedtea-jdk-musl.patch?id=4d34f29dddd3934358df7a9607706d09ae0433c3
+
+Upstream-Status: Inappropriate [musl specific]
+Signed-off-by: André Draszik <andre.draszik at jci.com <https://lists.yoctoproject.org/listinfo/yocto>>
+---
+ jdk/src/solaris/native/java/net/Inet4AddressImpl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/jdk/src/solaris/native/java/net/Inet4AddressImpl.c b/jdk/src/solaris/native/java/net/Inet4AddressImpl.c
+index ec4f97df..5c1af081 100644
+--- a/jdk/src/solaris/native/java/net/Inet4AddressImpl.c
++++ b/jdk/src/solaris/native/java/net/Inet4AddressImpl.c
+@@ -47,7 +47,7 @@
+ 
+ #include "java_net_Inet4AddressImpl.h"
+ 
+-#if defined(__GLIBC__) || (defined(__FreeBSD__) && (__FreeBSD_version >= 601104))
++#if defined(__linux__) || (defined(__FreeBSD__) && (__FreeBSD_version >= 601104))
+ #define HAS_GLIBC_GETHOSTBY_R   1
+ #endif
+ 
+-- 
+2.16.2
+