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FlattenableUtils::align memsets

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Bug: 141890807
Test: boot, check data is zero'd
Change-Id: I45aaeac369f4c5cf3eb44f61c233e00f870a5c79
This commit is contained in:
Steven Moreland 2019-10-07 17:31:17 -07:00
parent a9324e52d8
commit bf824f8fa5
1 changed files with 6 additions and 1 deletions
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7
libutils/include/utils/Flattenable.h
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@ -47,7 +47,12 @@ public:
template<size_t N>
static size_t align(void*& buffer) {
return align<N>( const_cast<void const*&>(buffer) );
static_assert(!(N & (N - 1)), "Can only align to a power of 2.");
void* b = buffer;
buffer = reinterpret_cast<void*>((uintptr_t(buffer) + (N-1)) & ~(N-1));
size_t delta = size_t(uintptr_t(buffer) - uintptr_t(b));
memset(b, 0, delta);
return delta;
}
static void advance(void*& buffer, size_t& size, size_t offset) {