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path: root/user/qt5-qtwebkit/ppc-llint.patch
blob: 033bbab685c059718f4d48298fc51e14ef48b224 (plain) (tree)






























                                                                                 
This fixes JavaScriptCore on big endian systems (mainly ppc).

Without the patch, attempting to run any JS results in
a crash as the generated code was endian specific.

--- qtwebkit/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
+++ qtwebkit/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
@@ -1440,13 +1440,13 @@ _llint_op_put_by_id:
     loadp StructureChain::m_vector[t3], t3
     assert(macro (ok) btpnz t3, ok end)
 
-    loadp Structure::m_prototype[t2], t2
+    loadp Structure::m_prototype + PayloadOffset[t2], t2
     btpz t2, .opPutByIdTransitionChainDone
 .opPutByIdTransitionChainLoop:
     loadp [t3], t1
     bineq t1, JSCell::m_structureID[t2], .opPutByIdSlow
     addp 4, t3
-    loadp Structure::m_prototype[t1], t2
+    loadp Structure::m_prototype + PayloadOffset[t1], t2
     btpnz t2, .opPutByIdTransitionChainLoop
 
 .opPutByIdTransitionChainDone:
@@ -2004,7 +2004,7 @@ _llint_throw_from_slow_path_trampoline:
     # When throwing from the interpreter (i.e. throwing from LLIntSlowPaths), so
     # the throw target is not necessarily interpreted code, we come to here.
     # This essentially emulates the JIT's throwing protocol.
-    loadp Callee[cfr], t1
+    loadp Callee + PayloadOffset[cfr], t1
     andp MarkedBlockMask, t1
     loadp MarkedBlockFooterOffset + MarkedBlock::Footer::m_vm[t1], t1
     jmp VM::targetMachinePCForThrow[t1]