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From:   Vineet Gupta <Vineet.Gupta1@synopsys.com>
To:     Guenter Roeck <linux@roeck-us.net>
CC:     Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>,
        "linux-snps-arc@lists.infradead.org" 
        <linux-snps-arc@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ARCv2: build: use mcpu=hs38 iso generic mcpu=archs
Thread-Topic: [PATCH] ARCv2: build: use mcpu=hs38 iso generic mcpu=archs
Thread-Index: AQHUSrnSGrPxheeqgEeU4ZLjmI6SIQ==
Date:   Wed, 12 Sep 2018 17:06:25 +0000
Message-ID: <C2D7FE5348E1B147BCA15975FBA23075012B0949BC@us01wembx1.internal.synopsys.com>
References: <20180912165817.GA5118@roeck-us.net>
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On 09/12/2018 09:58 AM, Guenter Roeck wrote:=0A=
> Hi,=0A=
>=0A=
> On Fri, Sep 07, 2018 at 03:13:10PM -0700, Vineet Gupta wrote:=0A=
>> helps gcc with better instruction selections such as 64-bit multiply MPY=
D=0A=
>>=0A=
>> before=0A=
>> ------=0A=
>> 82c34b58 <sched_clock>:=0A=
>> 82c34b58:	ld	r2,[0x83068d00]=0A=
>> 82c34b60:	add_s	r2,r2,0x7530=0A=
>> 82c34b66:	mov_s	r0,0x989680=0A=
>> 82c34b6c:	mpymu	r5,r2,r0=0A=
>> 82c34b70:	mpy	r4,r2,r0=0A=
>> 82c34b74:	mov_s	r0,r4=0A=
>> 82c34b76:	j_s.d	[blink]=0A=
>> 82c34b78:	mov_s	r1,r5=0A=
>> 82c34b7a:	nop_s=0A=
>>=0A=
>> after=0A=
>> ------=0A=
>> 82c34b7c <sched_clock>:=0A=
>> 82c34b7c:	ld	r0,[0x83064d00]=0A=
>> 82c34b84:	add_s	r0,r0,0x7530=0A=
>> 82c34b8a:	mpydu	r0,r0,0x989680=0A=
>> 82c34b92:	j_s	[blink]=0A=
>>=0A=
>> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>=0A=
> This patch causes my arc2 test builds to fail=0A=
>=0A=
> Building arc:axs103_defconfig ... failed=0A=
> --------------=0A=
> Error log:=0A=
>=0A=
> standard input}: Assembler messages:=0A=
> {standard input}:154: Error: inappropriate arguments for opcode 'st'=0A=
> {standard input}:157: Error: Insn j_s has a jump/branch instruction j_s i=
n its delay slot.=0A=
> {standard input}:186: Error: inappropriate arguments for opcode 'st'=0A=
> make[3]: *** [net/core/dev.o] Error 1=0A=
> make[2]: *** [net/core] Error 2=0A=
>=0A=
> Building arc:nsim_hs_smp_defconfig ... failed=0A=
> --------------=0A=
> Error log:=0A=
> {standard input}: Assembler messages:=0A=
> {standard input}:218: Error: inappropriate arguments for opcode 'st'=0A=
> {standard input}:9329: Error: inappropriate arguments for opcode 'st'=0A=
>=0A=
> Building arc:vdk_hs38_smp_defconfig ... failed=0A=
> --------------=0A=
> Error log:=0A=
>=0A=
> {standard input}: Assembler messages:=0A=
> {standard input}:9629: Error: inappropriate arguments for opcode 'st'=0A=
> {standard input}:9883: Error: inappropriate arguments for opcode 'st'=0A=
>=0A=
> I use a toolchain based on gcc 7.3.0 and binutils 2.30. What version=0A=
> of gcc and binutils do I need for the builds to complete ?=0A=
=0A=
Hmm I have a prebuilt 2017.03 release of tools (gcc 7.1.1 based) and I don'=
t see=0A=
the issue above when building net/core/dev.o=0A=
I presume your toolchain was built off of upstream gcc sources.=0A=
Can you please post the output of your arc-linux*gcc -v=0A=
=0A=
Thx,=0A=
-Vineet=0A=