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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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14
plugins/devel/check-structures-sanity.cpp
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@ -715,13 +715,17 @@ void Checker::queue_union(const ToCheck & item, const ToCheck & tag_item)
}
// if it's all uninitialized, ignore it
bool all_uninitialized = true;
for (size_t offset = 0; offset < union_type->byte_size(); offset++)
uint8_t uninit_value = *reinterpret_cast<const uint8_t *>(item.ptr);
bool all_uninitialized = uninit_value == 0 || uninit_value == 0xd2;
if (all_uninitialized)
{
if (*reinterpret_cast<const uint8_t *>(PTR_ADD(item.ptr, offset)) != 0xd2)
for (size_t offset = 0; offset < union_type->byte_size(); offset++)
{
all_uninitialized = false;
break;
if (*reinterpret_cast<const uint8_t *>(PTR_ADD(item.ptr, offset)) != uninit_value)
{
all_uninitialized = false;
break;
}
}
}
if (all_uninitialized)