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allow uninitialized data to be all zeroes

develop
Ben Lubar 2020-02-29 18:36:00 -06:00
parent aaace29e11
commit b0699a1b5e
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GPG Key ID: 92939677AB59EDA4
1 changed files with 9 additions and 5 deletions
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8
plugins/devel/check-structures-sanity.cpp
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@ -715,15 +715,19 @@ void Checker::queue_union(const ToCheck & item, const ToCheck & tag_item)
} }
// if it's all uninitialized, ignore it // if it's all uninitialized, ignore it
bool all_uninitialized = true; uint8_t uninit_value = *reinterpret_cast<const uint8_t *>(item.ptr);
bool all_uninitialized = uninit_value == 0 || uninit_value == 0xd2;
if (all_uninitialized)
{
for (size_t offset = 0; offset < union_type->byte_size(); offset++) for (size_t offset = 0; offset < union_type->byte_size(); offset++)
{ {
if (*reinterpret_cast<const uint8_t *>(PTR_ADD(item.ptr, offset)) != 0xd2) if (*reinterpret_cast<const uint8_t *>(PTR_ADD(item.ptr, offset)) != uninit_value)
{ {
all_uninitialized = false; all_uninitialized = false;
break; break;
} }
} }
}
if (all_uninitialized) if (all_uninitialized)
{ {
return; return;