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RE: Many warnings in MIPS port (Was: [PATCH] [MIPS] microMIPS gcc support)
- From: "Moore, Catherine" <Catherine_Moore at mentor dot com>
- To: "Rozycki, Maciej" <Maciej_Rozycki at mentor dot com>, David Daney <ddaney dot cavm at gmail dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Richard Sandiford <rdsandiford at googlemail dot com>
- Date: Fri, 12 Apr 2013 17:55:46 +0000
- Subject: RE: Many warnings in MIPS port (Was: [PATCH] [MIPS] microMIPS gcc support)
- References: <FD3DCEAC5B03E9408544A1E416F1124211F9CC2E at NA-MBX-04 dot mgc dot mentorg dot com> <871ubukhs7 dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BD288 at NA-MBX-01 dot mgc dot mentorg dot com> <87d2vdtv3x dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BDF64 at NA-MBX-01 dot mgc dot mentorg dot com> <871ubhem70 dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BE308 at NA-MBX-01 dot mgc dot mentorg dot com> <878v5jp4xl dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BE97B at NA-MBX-01 dot mgc dot mentorg dot com> <874ng7p1lr dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BEADD at NA-MBX-01 dot mgc dot mentorg dot com> <8738vp7nfn dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BEB4A at NA-MBX-01 dot mgc dot mentorg dot com> <87boad5gav dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BECCA at NA-MBX-01 dot mgc dot mentorg dot com> <87620k5mh1 dot fsf at talisman dot default> <FD3DCEAC5B03E9408544A1E416F11242987BEFBE at NA-MBX-01 dot mgc dot mentorg dot com> <87sj3m4h8j dot fsf at talisman dot default> <51683A46 dot 6020506 at gmail dot com> <alpine dot DEB dot 1 dot 10 dot 1304121753360 dot 2590 at tp dot orcam dot me dot uk>
> -----Original Message-----
> From: Maciej W. Rozycki [mailto:macro@codesourcery.com]
> Sent: Friday, April 12, 2013 1:03 PM
> To: David Daney
> Cc: Moore, Catherine; gcc-patches@gcc.gnu.org; Richard Sandiford
> Subject: Re: Many warnings in MIPS port (Was: [PATCH] [MIPS] microMIPS
> gcc support)
>
> On Fri, 12 Apr 2013, David Daney wrote:
>
> > I just tried to bootstrap on o32 Debian. This system has binutils 2.20.1.
> >
> > Here is a sample of the resulting failure when building the libjava
> > target
> > libs:
> > .
> > .
> > .
> > /home/daney/gccsvn/build/./gcc/xgcc -
> B/home/daney/gccsvn/build/./gcc/
> > -B/usr/local/mips-unknown-linux-gnu/bin/
> > -B/usr/local/mips-unknown-linux-gnu/lib/ -isystem
> > /usr/local/mips-unknown-linux-gnu/include -isystem
> > /usr/local/mips-unknown-linux-gnu/sys-include -DHAVE_CONFIG_H -I.
> > -I../../../../trunk/libjava/libltdl -g -O2 -minterlink-mips16 -c
> > ../../../../trunk/libjava/libltdl/ltdl.c -fPIC -DPIC -o .libs/ltdl.o
> > /tmp/cckECtVQ.s: Assembler messages:
> > /tmp/cckECtVQ.s:12: Warning: Tried to set unrecognized symbol:
> > nomicromips
> >
> > /tmp/cckECtVQ.s:115: Warning: Tried to set unrecognized symbol:
> > nomicromips
> >
> > /tmp/cckECtVQ.s:161: Warning: Tried to set unrecognized symbol:
> > nomicromips .
> > .
> > .
> >
> > There are literally thousands and thousands of these warnings.
>
> Thanks for the report, I guess GCC should:
>
> 1. Detect in its `configure' script if GAS supports the pseudo-op and
> refrain from producing it if it does not (or actually perhaps it may
> never produce it by default as GAS defaults to the nomicromips mode
> anyway); we have precedents for that already.
Configure was modified as part of the micromips patch to detect support for the .set <no>micromips pseudo op.
Do you have a configure log?
>