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Re-land: Fix devtools on 32-bit big endian platforms

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Tag PR #3098
This commit is contained in:
Moonchild
2026-05-21 09:11:43 +02:00
committed by roytam1
parent 13339f6e55
commit 0915736715
1 changed files with 15 additions and 0 deletions
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layout/base/FrameProperties.h
+15
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@@ -310,6 +310,14 @@ private:
static uint64_t ToInternalValue(PropertyType<T> aValue)
{
#if MOZ_BIG_ENDIAN
if (sizeof(PropertyType<T>) <= sizeof(uint32_t)) {
// make sure to lose the unimportant half on 32bit architectures
uint32_t v = 0;
memcpy(&v, &aValue, sizeof(aValue));
return v;
}
#endif
uint64_t v = 0;
memcpy(&v, &aValue, sizeof(aValue));
return v;
@@ -318,6 +326,13 @@ private:
static PropertyType<T> FromInternalValue(uint64_t aInternalValue)
{
PropertyType<T> value;
#if MOZ_BIG_ENDIAN
if (sizeof(value) <= sizeof(uint32_t)) {
uint32_t v32 = (uint32_t)aInternalValue;
memcpy(&value, &v32, sizeof(value));
return value;
}
#endif
memcpy(&value, &aInternalValue, sizeof(value));
return value;
}