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From: "Oliver Steffen" <osteffen@redhat.com>
To: devel@edk2.groups.io
Cc: abner.chang@hpe.com
Subject: gcc 12, RiscV64 fence.i instruction missing
Date: Thu, 2 Jun 2022 15:50:34 +0200	[thread overview]
Message-ID: <20220602135034.xdauyepsbbjrpu3k@osteffen-laptop> (raw)

Hi,
has anyone tied building EDK2 (e.g. MdePkg) for RiscV64 with gcc 12?
I get:

/edk2/Build/Mde/DEBUG_GCC5/RISCV64/MdePkg/Library/BaseLib/BaseLib/OUTPUT/RiscV64/FlushCache.iiii:16: Error: unrecognized opcode `fence.i'

I found this gcc bug:
Bug 104853 - [RISC-V] -march=rv64g not including extension Zifencei
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104853

I was working on getting gcc 12 into the CI.

Thanks,
  Oliver


             reply	other threads:[~2022-06-02 13:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-02 13:50 Oliver Steffen [this message]
2022-06-02 14:34 ` [edk2-devel] gcc 12, RiscV64 fence.i instruction missing Daniel Schaefer

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