Author: Krishnanjanappa, Jagadeesh <jagadeesh.krishnanjanappa@caviumnetworks.com>
Date:   Sun Apr 12 19:27:10 2015 +0530

[PATCH] add checking for AArch64 ilp32

Cross-compiling qt4-embedded and qt4-x11-free applications for AArch64 ilp32
(both big and little endian) fails with below error,

(snip)
In file included from ../3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.h:31:0,
                 from ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSGlobalData.h:32,
                 from ../3rdparty/javascriptcore/JavaScriptCore/interpreter/CallFrame.h:26,
                 from ../3rdparty/javascriptcore/JavaScriptCore/runtime/ClassInfo.h:26,
                 from ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSObject.h:27,
                 from ../3rdparty/javascriptcore/JavaScriptCore/API/JSCallbackConstructor.h:30,
                 from ../3rdparty/javascriptcore/JavaScriptCore/API/JSCallbackConstructor.cpp:27:
../3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h: In instantiation of 'TO QTWTF::bitwise_cast(FROM) [w
../3rdparty/javascriptcore/JavaScriptCore/runtime/JSImmediate.h:52:49: required from here
../3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h:63:1: error: size of array is negative
../3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h: In instantiation of 'TO QTWTF::bitwise_cast(FROM) [w
../3rdparty/javascriptcore/JavaScriptCore/runtime/JSImmediate.h:57:47: required from here
../3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h:63:1: error: size of array is negative
make[1]: *** [obj/release/JSCallbackConstructor.o] Error 1
-- CUT --

the error is because of JSVALUE64 is being defined while compiling programs
for AArch64 ilp32. This makes equal condition checking of intptr_t and double
datatypes as false, and results in -1 (negative) as array size in bitwise_cast
function.

Upstream-Status: Pending

Signed-off-by: Krishnanjanappa, Jagadeesh <jagadeesh.krishnanjanappa@caviumnetworks.com>

--- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Platform.h	2014-04-11 00:07:12.000000000 +0530
+++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Platform.h	2015-04-10 22:19:51.066279426 +0530
@@ -214,6 +214,9 @@
 #define WTF_CPU_AARCH64 1
 #if defined(__AARCH64EB__)
 #define WTF_CPU_BIG_ENDIAN 1
+#if !defined(__LP64__)
+#define WTF_CPU_AARCH64_32 1
+#endif
 #endif
 #endif
 
@@ -903,7 +906,7 @@
 #endif
 
 #if !defined(WTF_USE_JSVALUE64) && !defined(WTF_USE_JSVALUE32) && !defined(WTF_USE_JSVALUE32_64)
-#if (CPU(X86_64) && (OS(UNIX) || OS(WINDOWS) || OS(SOLARIS) || OS(HPUX))) || (CPU(IA64) && !CPU(IA64_32)) || CPU(ALPHA) || CPU(AIX64) || CPU(SPARC64) || CPU(MIPS64) || CPU(AARCH64)
+#if (CPU(X86_64) && (OS(UNIX) || OS(WINDOWS) || OS(SOLARIS) || OS(HPUX))) || (CPU(IA64) && !CPU(IA64_32)) || CPU(ALPHA) || CPU(AIX64) || CPU(SPARC64) || CPU(MIPS64) || (CPU(AARCH64) && !CPU(AARCH64_32))
 #define WTF_USE_JSVALUE64 1
 #elif CPU(ARM) || CPU(PPC64)
 #define WTF_USE_JSVALUE32 1