[EXTERNAL] RE: [edk2-devel] [PATCH v2 3/3] MdeModulePkg: Use CopyMem instead of GUID assignment
Leif Lindholm
leif at nuviainc.com
Thu Mar 12 13:53:47 UTC 2020
Hi Ray,
On Thu, Mar 12, 2020 at 12:21 PM Ni, Ray <ray.ni at intel.com> wrote:
> Does CompilerIntrinsicsLib exist because GCC doesn't support to disable
intrinsic?
It is not possible to disable all intrinsics on 32-bit ARM, and it's not
necessarily desirable to do so for AArch64 (so I don't think it's
implemented).
Note that this is somewhat true for x86 too - leading to things like
DivU64x32 in BaseLib.
> How does the linker find the CompilerInstrinsicsLib in linking phase?
For example:
https://github.com/tianocore/edk2/blob/master/MdeModulePkg/MdeModulePkg.dsc#L172
Regards,
Leif
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