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loader: make sure CPUTYPE is ignored when building
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Authored by imp on Thu, Jul 15, 2:02 AM.

Details

Summary

CPUTYPE?=native causes -march=native to be added to the command
line. When the host machine is haswell, this causes some versions of
clang to generate code that can't execute in the efi boot loader
environment. Set _CPUCFLAGS= to undo what's done bsd.cpu.mk. bsd.cpu.mk
is included too early to control with NO_CPU_CFLAGS here. The only other
option is to put that in all the Makefiles, and this is less tedious and
error prone.

PR: 194641
Sponsored by: Netflix

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Repository
R10 FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.