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Date:      Wed, 20 Nov 2019 14:09:22 -0800
From:      John Baldwin <jhb@FreeBSD.org>
To:        Warner Losh <imp@bsdimp.com>, Li-Wen Hsu <lwhsu@freebsd.org>
Cc:        src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r354900 - head/usr.sbin/jail
Message-ID:  <59bf120c-2f35-1a22-b6fa-a9c9bb8cfdf4@FreeBSD.org>
In-Reply-To: <CANCZdfqVLZUqGiCDagwkULH7xegrZwehRsn8Ek-BJR=OVTpXGw@mail.gmail.com>
References:  <201911201654.xAKGsMTv094014@repo.freebsd.org> <CANCZdfqVLZUqGiCDagwkULH7xegrZwehRsn8Ek-BJR=OVTpXGw@mail.gmail.com>

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On 11/20/19 10:01 AM, Warner Losh wrote:
> On Wed, Nov 20, 2019 at 9:54 AM Li-Wen Hsu <lwhsu@freebsd.org> wrote:
> 
>> Author: lwhsu
>> Date: Wed Nov 20 16:54:21 2019
>> New Revision: 354900
>> URL: https://svnweb.freebsd.org/changeset/base/354900
>>
>> Log:
>>   Use the correct variable, also limit the scope to bfd
>>
>>   PR:           242109
>>   Reported by:  jhb
>>   Sponsored by: The FreeBSD Foundation
>>
>> Modified:
>>   head/usr.sbin/jail/Makefile
>>
>> Modified: head/usr.sbin/jail/Makefile
>>
>> ==============================================================================
>> --- head/usr.sbin/jail/Makefile Wed Nov 20 16:35:58 2019        (r354899)
>> +++ head/usr.sbin/jail/Makefile Wed Nov 20 16:54:21 2019        (r354900)
>> @@ -18,7 +18,7 @@ CFLAGS+=-I. -I${.CURDIR}
>>  # workaround for GNU ld (GNU Binutils) 2.33.1:
>>  #   relocation truncated to fit: R_RISCV_GPREL_I against `.LANCHOR2'
>>  # https://bugs.freebsd.org/242109
>> -.if ${MACHINE_ARCH} == "riscv"
>> +.if ${LINKER_TYPE} == "bfd" && ${MACHINE} == "riscv"
>>
> 
> MACHINE isn't the right thing to use here. It's never the proper thing in
> userland makefiles, unless they are interfacing with the kernel.
> 
> MACHINE_CPUARCH is what you want here.

Eh, that claim doesn't seem quite true.  src.opts.mk only uses MACHINE and not
MACHINE_CPUARCH for example (to set _TT that is then used all over the
place in src.opts.mk).  My experience is that uses of *_CPUARCH are in fact
pretty rare.

-- 
John Baldwin



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