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Date: Wed, 23 Feb 2022 14:48:06 +0100
From: Waldemar Brodkorb <wbx@openadk.org>
To: Jan Beulich <jbeulich@suse.com>
Cc: Waldemar Brodkorb <wbx@openadk.org>, binutils@sourceware.org,
 Nick Clifton <nickc@redhat.com>
Subject: Re: GNU Binutils 2.38 has been released
Message-ID: <YhY7Fh9VVxVjlB0f@waldemar-brodkorb.de>
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Hi Jan,
Jan Beulich wrote,

> On 14.02.2022 11:58, Waldemar Brodkorb wrote:
> > I am having problems with following commit
> > aed44286efa8ae8717a77d94b51ac3614e2ca6dc. 
> > 
> > When trying to build the Linux kernel I get a lot of:
> > ./arch/riscv/include/asm/irqflags.h:34: Error: unrecognized opcode
> > `csrrc s2,0x100,2'
> > ./arch/riscv/include/asm/irqflags.h:52: Error: unrecognized opcode
> > `csrs 0x100,s2'
> > 
> > The kernel is compiled with gcc 11.2 and  -mabi=lp64 -march=rv64ima.
> 
> Isn't "ima" too little? I don't think that includes CSR accesses, that's
> its own extension (Zicsr).

Before this commit it was enough to build the Linux kernel.
What letter needs to be added to get Zicsr extensions, though?
 
 best regards
  Waldemar