From 12feaa7d3b1544098f684d851e3caff1ec88cbc8 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Fri, 30 Jan 2015 21:09:17 +0100
Subject: Refine Native Library Code: Bulk Permissions, Cleanup DynamicLinker
 impl. - and fix Android AArch64 BionicDynamicLinker (Bug 1122)

- Bulk Permissions
  ProcAddressTable.reset(..) performs address lookup in one block.
  Now claiming all permissions upfront once, and releasing them afterwards.

- Cleanup DynamicLinker impl.
  Proper top-down impl. of DynamicLinkerImpl,
  handling all security code and validations.

- Fix Android AArch64 BionicDynamicLinker (Bug 1122)
  Dalvik uses diff RTLD_* defines for AArch64!
---
 .../common/os/BionicDynamicLinker32bitImpl.java    | 63 ++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 src/java/jogamp/common/os/BionicDynamicLinker32bitImpl.java

(limited to 'src/java/jogamp/common/os/BionicDynamicLinker32bitImpl.java')

diff --git a/src/java/jogamp/common/os/BionicDynamicLinker32bitImpl.java b/src/java/jogamp/common/os/BionicDynamicLinker32bitImpl.java
new file mode 100644
index 0000000..e51ae69
--- /dev/null
+++ b/src/java/jogamp/common/os/BionicDynamicLinker32bitImpl.java
@@ -0,0 +1,63 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.common.os;
+
+/**
+ * Bionic 32bit specialization of {@link UnixDynamicLinkerImpl}
+ * utilizing Bionic's non POSIX flags and mode values.
+ * <p>
+ * Bionic is used on Android.
+ * </p>
+ */
+public final class BionicDynamicLinker32bitImpl extends UnixDynamicLinkerImpl {
+
+  //      static final int RTLD_NOW      = 0x00000;
+  private static final int RTLD_LAZY     = 0x00001;
+
+  private static final int RTLD_LOCAL    = 0x00000;
+  private static final int RTLD_GLOBAL   = 0x00002;
+  //      static final int RTLD_NOLOAD   = 0x00004;
+
+  private static final long RTLD_DEFAULT = 0xffffffffL;
+  //      static final long RTLD_NEXT    = 0xfffffffeL;
+
+  @Override
+  protected final long openLibraryLocalImpl(final String pathname) throws SecurityException {
+    return dlopen(pathname, RTLD_LAZY | RTLD_LOCAL);
+  }
+
+  @Override
+  protected final long openLibraryGlobalImpl(final String pathname) throws SecurityException {
+    return dlopen(pathname, RTLD_LAZY | RTLD_GLOBAL);
+  }
+
+  @Override
+  protected final long lookupSymbolGlobalImpl(final String symbolName) throws SecurityException {
+    return dlsym(RTLD_DEFAULT, symbolName);
+  }
+}
-- 
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