mirror of https://github.com/acidanthera/audk.git
02b7b861b1
https://bugzilla.tianocore.org/show_bug.cgi?id=2525 SafeUint64Mult() looks for 64-bit overflows and performs several 32-bit multiples with 64-bit results to check for all possible overflow conditions. IA32 builds using VS20xx with optimizations enabled are producing a reference to the _allmull intrinsic. The fix is to use MultU64x64() instead of '*' for these operations. These are safe because the inputs are guaranteed to have the upper 32-bits clear, which means MultU64x64() can never overflow with those inputs. Cc: Liming Gao <liming.gao@intel.com> Cc: Sean Brogan <sean.brogan@microsoft.com> Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Bret Barkelew <bret.barkelew@microsoft.com> Reviewed-by: Liming Gao <liming.gao@intel.com> |
||
|---|---|---|
| .. | ||
| BaseSafeIntLib.inf | ||
| SafeIntLib.c | ||
| SafeIntLib32.c | ||
| SafeIntLib64.c | ||
| SafeIntLibEbc.c | ||