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| author | Michael Bestas <mkbestas@lineageos.org> | 2020-01-08 02:03:31 +0200 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2020-01-08 02:03:31 +0200 |
| commit | d686176a931e3ef28c820109bd2cedad7c504d14 (patch) | |
| tree | 5f73aa8f659e7ef58c27dffe5223b74374971648 /libutils/include/utils/Flattenable.h | |
| parent | 6b664ff0596b91553e64aae1f79f338c4fc3d051 (diff) | |
| parent | eaab99db0bfea48dd507fb4be705c136568d001a (diff) | |
| download | system_core-d686176a931e3ef28c820109bd2cedad7c504d14.tar.gz system_core-d686176a931e3ef28c820109bd2cedad7c504d14.tar.bz2 system_core-d686176a931e3ef28c820109bd2cedad7c504d14.zip | |
Merge tag 'android-10.0.0_r23' into staging/lineage-17.1_merge-android-10.0.0_r23
Android 10.0.0 release 23
* tag 'android-10.0.0_r23':
FlattenableUtils::align memsets
Change-Id: I4042ad902074d4cc8c5953cfe27f8bb34fdbdb01
Diffstat (limited to 'libutils/include/utils/Flattenable.h')
| -rw-r--r-- | libutils/include/utils/Flattenable.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libutils/include/utils/Flattenable.h b/libutils/include/utils/Flattenable.h index 9d006023d..2c4b8075d 100644 --- a/libutils/include/utils/Flattenable.h +++ b/libutils/include/utils/Flattenable.h @@ -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) { |