[oe] [meta-java][sumo][PATCH] openjdk-8-16xbyy: port better interface invocation from aarch32

[Kyle Russell]

Fixes regression from new interface invocation implementation.  In one
crash, cache->f2_as_index() returns a Method* instead of an index into
the itable during static initialization of sun.reflect.Reflection when
attempting an invokeinterface on Map.put().

Upstream-Status: Backport
[OpenJDK: https://bugs.openjdk.java.net/browse/JDK-8194739]

Signed-off-by: Kyle Russell <bkylerussell at gmail.com>
---
 .../openjdk/openjdk-8-release-16xbyy.inc      |  3 +
 ...arch32-interface-invocation-segv-fix.patch | 74 +++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 recipes-core/openjdk/patches-openjdk-8/openjdk8-aarch32-interface-invocation-segv-fix.patch

diff --git a/recipes-core/openjdk/openjdk-8-release-16xbyy.inc b/recipes-core/openjdk/openjdk-8-release-16xbyy.inc
index bd4a349..cffc7c2 100644
--- a/recipes-core/openjdk/openjdk-8-release-16xbyy.inc
+++ b/recipes-core/openjdk/openjdk-8-release-16xbyy.inc
@@ -17,6 +17,9 @@ PATCHES_URI = "\
     file://0009-jdk-disable-backtrace-musl-build-fix.patch \
     file://0010-build-fix-build-on-as-needed-toolchains-generic.patch \
 "
+PATCHES_URI_append_class-target_arm = "\
+    file://openjdk8-aarch32-interface-invocation-segv-fix.patch;patchdir=${S}/hotspot \
+"
 # some patches extracted from http://cr.openjdk.java.net/~rkennke/shark-build-hotspot/webrev.01/hotspot.patch
 # reported via http://mail.openjdk.java.net/pipermail/build-dev/2015-January/013972.html
 # by Roman Kennke (rkennke at redhat.com)
diff --git a/recipes-core/openjdk/patches-openjdk-8/openjdk8-aarch32-interface-invocation-segv-fix.patch b/recipes-core/openjdk/patches-openjdk-8/openjdk8-aarch32-interface-invocation-segv-fix.patch
new file mode 100644
index 0000000..249db17
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/openjdk8-aarch32-interface-invocation-segv-fix.patch
@@ -0,0 +1,74 @@
+
+# HG changeset patch
+# User aph
+# Date 1516634342 0
+# Node ID 56123fdca84a3b253b8ea6f72be85bd2ebf39fd0
+# Parent  1252eaaa2c8bc3493038e87483ac08ccadbbdf51
+8194739: Zero port of 8174962: Better interface invocations
+Reviewed-by: adinn, coleenp
+
+diff -r 1252eaaa2c8b -r 56123fdca84a src/cpu/zero/vm/methodHandles_zero.cpp
+--- a/src/cpu/zero/vm/methodHandles_zero.cpp	Thu Feb 22 21:28:07 2018 -0800
++++ b/src/cpu/zero/vm/methodHandles_zero.cpp	Mon Jan 22 15:19:02 2018 +0000
+@@ -180,3 +180,9 @@
+     return NULL;
+   }
+ }
++
++#ifndef PRODUCT
++void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) {
++  // This is just a stub.
++}
++#endif //PRODUCT
+diff -r 1252eaaa2c8b -r 56123fdca84a src/share/vm/interpreter/bytecodeInterpreter.cpp
+--- a/src/share/vm/interpreter/bytecodeInterpreter.cpp	Thu Feb 22 21:28:07 2018 -0800
++++ b/src/share/vm/interpreter/bytecodeInterpreter.cpp	Mon Jan 22 15:19:02 2018 +0000
+@@ -2569,13 +2569,35 @@
+ 
+         // this could definitely be cleaned up QQQ
+         Method* callee;
+-        Klass* iclass = cache->f1_as_klass();
+-        // InstanceKlass* interface = (InstanceKlass*) iclass;
++        Method *interface_method = cache->f2_as_interface_method();
++        InstanceKlass* iclass = interface_method->method_holder();
++
+         // get receiver
+         int parms = cache->parameter_size();
+         oop rcvr = STACK_OBJECT(-parms);
+         CHECK_NULL(rcvr);
+         InstanceKlass* int2 = (InstanceKlass*) rcvr->klass();
++
++        // Receiver subtype check against resolved interface klass (REFC).
++        {
++          Klass* refc = cache->f1_as_klass();
++          itableOffsetEntry* scan;
++          for (scan = (itableOffsetEntry*) int2->start_of_itable();
++               scan->interface_klass() != NULL;
++               scan++) {
++            if (scan->interface_klass() == refc) {
++              break;
++            }
++          }
++          // Check that the entry is non-null.  A null entry means
++          // that the receiver class doesn't implement the
++          // interface, and wasn't the same as when the caller was
++          // compiled.
++          if (scan->interface_klass() == NULL) {
++            VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), "", note_no_trap);
++          }
++        }
++
+         itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable();
+         int i;
+         for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) {
+@@ -2587,7 +2609,8 @@
+         if (i == int2->itable_length()) {
+           VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), "", note_no_trap);
+         }
+-        int mindex = cache->f2_as_index();
++        int mindex = interface_method->itable_index();
++
+         itableMethodEntry* im = ki->first_method_entry(rcvr->klass());
+         callee = im[mindex].method();
+         if (callee == NULL) {
+
-- 
2.20.1