Date: Thu, 24 Nov 2016 22:01:25 +0300 From: Michael Zhilin <mizhka@gmail.com> To: Eugene Grosbein <eugen@grosbein.net> Cc: Adrian Chadd <adrian.chadd@gmail.com>, "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: MIPS code size strangeness Message-ID: <CAF19XB%2BddNuiJAStjEe0TX9vSn2hxwvHMhDhgRwPx9vMPpHo6w@mail.gmail.com> In-Reply-To: <5837261E.9040700@grosbein.net> References: <5831E800.60003@grosbein.net> <CAJ-VmokUfc2ABY1O0B7RqzfCmU_99VwnCmmHfhcRhM5NcH4Ubg@mail.gmail.com> <5832FF33.9010307@grosbein.net> <CAF19XB%2BwS%2BeCrv1mtmXLS1b7SJNZbQUD_2PFZXkhyvX-4wfeLQ@mail.gmail.com> <58330AB6.60306@grosbein.net> <CAF19XBLaZ=t_HPm079vsXvT5vBLunPib94d6=hNkzRd2xz5EPg@mail.gmail.com> <58332491.3000706@grosbein.net> <CAJ-Vmo=Zp2HFLcd5293G-9odo-8r=qa1j=FsJoD-jxMiMJXKAQ@mail.gmail.com> <58332940.8030606@grosbein.net> <CAJ-VmokTECO2kfRKsBiESCCygfM8qh_NzL4pzik8H7KL6pw6HQ@mail.gmail.com> <58346974.2020907@grosbein.net> <CAJ-VmokX_ThysU0vRxKWeAQL4JLFHh5vH6rDbtRitCpPCm=_TQ@mail.gmail.com> <58371526.4050908@grosbein.net> <5837261E.9040700@grosbein.net>
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Mm... size of libprivateucl.so.1 was 241560 and new size is 247224?
Strange. Could you please compare old & new versions?
On Thu, Nov 24, 2016 at 8:40 PM, Eugene Grosbein <eugen@grosbein.net> wrote:
> On 24.11.2016 23:28, Eugene Grosbein wrote:
> > On 24.11.2016 05:11, Adrian Chadd wrote:
> >> It's the mips-xtoolchain or xtoolchain-mips-gcc or something
> >
> > Thanks!
> >
> > I've changed the port devel/powerpc64-gcc (master port for
> devel/mips-gcc) slightly
> > to build gcc-6.2.0 instead of gcc-5.3.0 and it builds and installs just
> fine
> > using command make FREEBSD_EXTENSION=yes install
> >
> > Then, I've installed devel/mips-xtoolchain-gcc and run buildworld using
> CROSS_TOOLCHAIN=mips-gcc.
> > It fails:
> >
> > --- cancelpoints_sem_new.o ---
> > {standard input}: Assembler messages:
> > {standard input}:1347: Error: opcode not supported on this processor:
> mips1 (mips1) `ll $5,4($4)'
> > {standard input}:1350: Error: opcode not supported on this processor:
> mips1 (mips1) `sc $5,4($4)'
> > {standard input}:1360: Error: opcode not supported on this processor:
> mips1 (mips1) `sync'
> > {standard input}:1456: Error: opcode not supported on this processor:
> mips1 (mips1) `ll $4,0($17)'
> > {standard input}:1459: Error: opcode not supported on this processor:
> mips1 (mips1) `sc $4,0($17)'
> > {standard input}:1469: Error: opcode not supported on this processor:
> mips1 (mips1) `sync'
> > {standard input}:1697: Error: opcode not supported on this processor:
> mips1 (mips1) `sync'
> > {standard input}:1702: Error: opcode not supported on this processor:
> mips1 (mips1) `ll $5,4($4)'
> > {standard input}:1705: Error: opcode not supported on this processor:
> mips1 (mips1) `sc $5,4($4)'
> > *** [cancelpoints_sem_new.o] Error code 1
> >
> > I try to build code for TP-Link WDR3600.
> > I'm not familiar with MIPS assembler. Is there a way to alter gcc6 code
> generator to avoid this error?
>
> I've managed to build FreeBSD12/mips using gcc6 and additional src.conf
> knobs:
>
> CROSS_TOOLCHAIN=mips-gcc
> WITHOUT_CROSS_COMPILER=yes
> CROSSENV+=CFLAGS="-march=mips32"
>
> This time, ucl_hash_replace() function takes 628 bytes (0x274) instead of
> 25000:
>
> # nm -C -D --print-size --size-sort libprivateucl.so.1 | grep
> ucl_hash_replace
> 0003098c 00000274 T ucl_hash_replace
>
> However, libprivateucl.so.1 still takes 247224 bytes in case of
> FreeBSD12/mips
> comparing with 136064 bytes in case of FreeBSD11/amd64.
>
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