261 lines
9.6 KiB
Diff
261 lines
9.6 KiB
Diff
Source: Jacek Piszczek <jacek.piszczek@runbox.com>
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https://tenfourfox.tenderapp.com/discussions/problems/7505-problems-uploading-to-facebook
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Updated by @q66.
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diff --git Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
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index dbe211d..4da5fbd 100644
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--- a/Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
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+++ b/Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
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@@ -28,6 +28,7 @@
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#include "JSArrayBufferView.h"
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#include "ThrowScope.h"
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#include "ToNativeFromValue.h"
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+#include <wtf/FlipBytes.h>
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namespace JSC {
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@@ -146,7 +147,18 @@ public:
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JSValue getIndexQuickly(unsigned i) const
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{
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+#if CPU(BIG_ENDIAN)
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+ switch (Adaptor::typeValue) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ return Adaptor::toJSValue(nullptr, getIndexQuicklyAsNativeValue(i));
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ return Adaptor::toJSValue(nullptr, flipBytes(getIndexQuicklyAsNativeValue(i)));
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+ }
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+#else
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return Adaptor::toJSValue(nullptr, getIndexQuicklyAsNativeValue(i));
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+#endif
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}
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void setIndexQuicklyToNativeValue(unsigned i, typename Adaptor::Type value)
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@@ -158,7 +170,20 @@ public:
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void setIndexQuickly(unsigned i, JSValue value)
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{
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ASSERT(!value.isObject());
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+#if CPU(BIG_ENDIAN)
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+ switch (Adaptor::typeValue) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ setIndexQuicklyToNativeValue(i, toNativeFromValue<Adaptor>(value));
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+ break;
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ setIndexQuicklyToNativeValue(i, flipBytes(toNativeFromValue<Adaptor>(value)));
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+ break;
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+ }
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+#else
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setIndexQuicklyToNativeValue(i, toNativeFromValue<Adaptor>(value));
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+#endif
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}
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bool setIndex(JSGlobalObject* globalObject, unsigned i, JSValue jsValue)
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@@ -172,13 +197,54 @@ public:
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if (isDetached() || i >= m_length)
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return false;
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+#if CPU(BIG_ENDIAN)
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+ switch (Adaptor::typeValue) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ setIndexQuicklyToNativeValue(i, value);
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+ break;
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ setIndexQuicklyToNativeValue(i, flipBytes(value));
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+ break;
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+ }
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+#else
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setIndexQuicklyToNativeValue(i, value);
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+#endif
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return true;
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}
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- static ElementType toAdaptorNativeFromValue(JSGlobalObject* globalObject, JSValue jsValue) { return toNativeFromValue<Adaptor>(globalObject, jsValue); }
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+ static ElementType toAdaptorNativeFromValue(JSGlobalObject* globalObject, JSValue jsValue)
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+ {
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+#if CPU(BIG_ENDIAN)
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+ switch (Adaptor::typeValue) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ return toNativeFromValue<Adaptor>(globalObject, jsValue);
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ return flipBytes(toNativeFromValue<Adaptor>(globalObject, jsValue));
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+ }
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+#else
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+ return toNativeFromValue<Adaptor>(globalObject, jsValue);
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+#endif
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+ }
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- static Optional<ElementType> toAdaptorNativeFromValueWithoutCoercion(JSValue jsValue) { return toNativeFromValueWithoutCoercion<Adaptor>(jsValue); }
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+ static Optional<ElementType> toAdaptorNativeFromValueWithoutCoercion(JSValue jsValue)
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+ {
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+#if CPU(BIG_ENDIAN)
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+ switch (Adaptor::typeValue) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ return toNativeFromValueWithoutCoercion<Adaptor>(jsValue);
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ return flipBytes(toNativeFromValueWithoutCoercion<Adaptor>(jsValue));
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+ }
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+#else
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+ return toNativeFromValueWithoutCoercion<Adaptor>(jsValue);
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+#endif
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+ }
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void sort()
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{
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diff --git Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
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index 126f33c..0913af5 100644
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--- a/Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
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+++ b/Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
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@@ -208,9 +208,36 @@ ALWAYS_INLINE EncodedJSValue genericTypedArrayViewProtoFuncIncludes(VM& vm, JSGl
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scope.assertNoException();
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RELEASE_ASSERT(!thisObject->isDetached());
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- if (std::isnan(static_cast<double>(*targetOption))) {
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+ double targetOptionLittleEndianAsDouble;
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+#if CPU(BIG_ENDIAN)
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+ switch (ViewClass::TypedArrayStorageType) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ targetOptionLittleEndianAsDouble = static_cast<double>(*targetOption);
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ targetOptionLittleEndianAsDouble = static_cast<double>(flipBytes(*targetOption));
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+ }
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+#else
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+ targetOptionLittleEndianAsDouble = static_cast<double>(*targetOption);
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+#endif
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+
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+ if (std::isnan(targetOptionLittleEndianAsDouble)) {
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for (; index < length; ++index) {
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- if (std::isnan(static_cast<double>(array[index])))
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+ double arrayElementLittleEndianAsDouble;
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+#if CPU(BIG_ENDIAN)
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+ switch (ViewClass::TypedArrayStorageType) {
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+ case TypeFloat32:
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+ case TypeFloat64:
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+ arrayElementLittleEndianAsDouble = static_cast<double>(array[index]);
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+ default:
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+ // typed array views are commonly expected to be little endian views of the underlying data
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+ arrayElementLittleEndianAsDouble = static_cast<double>(flipBytes(array[index]));
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+ }
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+#else
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+ arrayElementLittleEndianAsDouble = static_cast<double>(array[index]);
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+#endif
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+ if (std::isnan(arrayElementLittleEndianAsDouble))
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return JSValue::encode(jsBoolean(true));
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}
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} else {
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diff --git Source/WTF/wtf/FlipBytes.h Source/WTF/wtf/FlipBytes.h
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index 6cd7126..24708f7 100644
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--- a/Source/WTF/wtf/FlipBytes.h
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+++ b/Source/WTF/wtf/FlipBytes.h
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@@ -24,6 +24,7 @@
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*/
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#pragma once
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+#include "Optional.h"
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namespace WTF {
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@@ -98,6 +99,42 @@ inline T flipBytes(T value)
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return T();
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}
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+template<typename T>
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+inline T flipBytes(WTF::Optional<T> value)
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+{
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+ if (sizeof(*value) == 1)
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+ return *value;
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+ if (sizeof(*value) == 2) {
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+ union {
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+ T original;
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+ uint16_t word;
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+ } u;
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+ u.original = *value;
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+ u.word = flipBytes(u.word);
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+ return u.original;
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+ }
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+ if (sizeof(*value) == 4) {
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+ union {
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+ T original;
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+ uint32_t word;
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+ } u;
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+ u.original = *value;
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+ u.word = flipBytes(u.word);
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+ return u.original;
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+ }
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+ if (sizeof(*value) == 8) {
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+ union {
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+ T original;
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+ uint64_t word;
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+ } u;
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+ u.original = *value;
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+ u.word = flipBytes(u.word);
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+ return u.original;
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+ }
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+ RELEASE_ASSERT_NOT_REACHED();
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+ return T();
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+}
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+
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template<typename T>
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inline T flipBytesIfLittleEndian(T value, bool littleEndian)
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{
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diff --git a/Source/JavaScriptCore/llint/LLIntOfflineAsmConfig.h b/Source/JavaScriptCore/llint/LLIntOfflineAsmConfig.h
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index 33be4058..1a6d69fd 100644
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--- a/Source/JavaScriptCore/llint/LLIntOfflineAsmConfig.h
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+++ b/Source/JavaScriptCore/llint/LLIntOfflineAsmConfig.h
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@@ -179,3 +179,9 @@
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#else
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#define OFFLINE_ASM_HAVE_FAST_TLS 0
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#endif
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+
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+#if CPU(BIG_ENDIAN)
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+#define OFFLINE_ASM_BIG_ENDIAN 1
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+#else
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+#define OFFLINE_ASM_BIG_ENDIAN 0
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+#endif
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diff --git a/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm b/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
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index 20c0c40b..10c58846 100644
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--- a/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
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+++ b/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
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@@ -1667,7 +1667,11 @@ llintOpWithMetadata(op_get_by_val, OpGetByVal, macro (size, get, dispatch, metad
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.opGetByValNotDouble:
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subi ArrayStorageShape, t2
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- bia t2, SlowPutArrayStorageShape - ArrayStorageShape, .opGetByValNotIndexedStorage
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+ if BIG_ENDIAN
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+ bia t2, SlowPutArrayStorageShape - ArrayStorageShape, .opGetByValSlow
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+ else
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+ bia t2, SlowPutArrayStorageShape - ArrayStorageShape, .opGetByValNotIndexedStorage
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+ end
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biaeq t1, -sizeof IndexingHeader + IndexingHeader::u.lengths.vectorLength[t3], .opGetByValSlow
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loadi ArrayStorage::m_vector + TagOffset[t3, t1, 8], t2
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loadi ArrayStorage::m_vector + PayloadOffset[t3, t1, 8], t1
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diff --git a/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm b/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm
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index 27e76d2f..bfb2a46e 100644
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--- a/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm
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+++ b/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm
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@@ -1721,7 +1721,11 @@ llintOpWithMetadata(op_get_by_val, OpGetByVal, macro (size, get, dispatch, metad
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.opGetByValNotDouble:
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subi ArrayStorageShape, t2
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- bia t2, SlowPutArrayStorageShape - ArrayStorageShape, .opGetByValNotIndexedStorage
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+ if BIG_ENDIAN
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+ bia t2, SlowPutArrayStorageShape - ArrayStorageShape, .opGetByValSlow
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+ else
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+ bia t2, SlowPutArrayStorageShape - ArrayStorageShape, .opGetByValNotIndexedStorage
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+ end
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biaeq t1, -sizeof IndexingHeader + IndexingHeader::u.lengths.vectorLength[t3], .opGetByValSlow
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get(m_dst, t0)
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loadq ArrayStorage::m_vector[t3, t1, 8], t2
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