On 04/12/2013 10:55 AM, Moore, Catherine wrote:
-----Original Message-----
From: Maciej W. Rozycki [mailto:ma...@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?
Here is the relevant fragment:
.
.
.
configure:25761: checking assembler for .micromips support
configure:25770: /usr/bin/as -o conftest.o conftest.s >&5
conftest.s: Assembler messages:
conftest.s:1: Warning: Tried to set unrecognized symbol: micromips
configure:25773: $? = 0
configure:25784: result: yes
.
.
.
Since it is a warning, it succeeds. I think you need to adjust the test
so that it fails if there is a warning.
