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8148353: [linux-sparc] Crash in libawt.so on Linux SPARC

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Gcc expects clean 32 bit int in 64 bit register on function entry

Reviewed-by: kvn, dlong
This commit is contained in:
Roland Westrelin 2016-02-23 17:18:31 +01:00
parent 0c43809cfe
commit 744d73a67f
4 changed files with 85 additions and 2 deletions
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1
hotspot/make/test/JtregNative.gmk
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@ -48,6 +48,7 @@ BUILD_HOTSPOT_JTREG_NATIVE_SRC := \
$(HOTSPOT_TOPDIR)/test/runtime/SameObject \
$(HOTSPOT_TOPDIR)/test/compiler/floatingpoint/ \
$(HOTSPOT_TOPDIR)/test/compiler/calls \
$(HOTSPOT_TOPDIR)/test/compiler/native \
#
# Add conditional directories here when needed.

7
hotspot/src/cpu/sparc/vm/sharedRuntime_sparc.cpp
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@ -1349,9 +1349,12 @@ static void move32_64(MacroAssembler* masm, VMRegPair src, VMRegPair dst) {
}
} else if (dst.first()->is_stack()) {
// reg to stack
__ st_ptr(src.first()->as_Register(), SP, reg2offset(dst.first()) + STACK_BIAS);
// Some compilers (gcc) expect a clean 32 bit value on function entry
__ signx(src.first()->as_Register(), L5);
__ st_ptr(L5, SP, reg2offset(dst.first()) + STACK_BIAS);
} else {
__ mov(src.first()->as_Register(), dst.first()->as_Register());
// Some compilers (gcc) expect a clean 32 bit value on function entry
__ signx(src.first()->as_Register(), dst.first()->as_Register());
}
}

46
hotspot/test/compiler/native/TestDirtyInt.java Normal file
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@ -0,0 +1,46 @@
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @run main/native TestDirtyInt
*/
public class TestDirtyInt {
static {
System.loadLibrary("TestDirtyInt");
}
native static int test(int v);
static int compiled(int v) {
return test(v<<2);
}
static public void main(String[] args) {
for (int i = 0; i < 20000; i++) {
int res = compiled(Integer.MAX_VALUE);
if (res != 0x42) {
throw new RuntimeException("Test failed");
}
}
}
}

33
hotspot/test/compiler/native/libTestDirtyInt.c Normal file
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@ -0,0 +1,33 @@
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "jni.h"
#include <stdio.h>
static int array = 0x42;
JNIEXPORT jint JNICALL Java_TestDirtyInt_test(JNIEnv* env, jclass jclazz, jint v)
{
int* ptr = &array + v + 4;
return *ptr;
}