Re: Trying to track down problem with packed.com from testsuite

[john o goyo]

On 2024-09-02 09:00, Gaius Mulley wrote (in part):
> I prefer to debug without optimization - but obviously if it fails with
> -O2 or greater then this doesn't apply.  For my clarity is it that gm2
> -O2 fails or is it that the build process using -O2 fails.  If it is gm2
> -O2 then it would be worth building gcc/gm2 with full debugging (as the
> -O2 throws away too much useful info).

For clarity, gm2-14.2.0 (specifically, cc1gm2 sigsevs) with -O2 and 
above.  It does not fail with -O0 or -O1.

I built gm2-14.2.0 with the default configuration, which put the 
following in the Makefile:
CFLAGS_FOR_BUILD = -g -O2
BOOT_CFLAGS= -g -O2
CFLAGS = -g -O2

> Here is my debug build script which might be adapted (it generates all
> .o files without optimization and will enable gdb debugging):
>
> #!/bin/bash
>
> if [ -d $HOME/GCC/gcc-read-write ] ; then
>      cd $HOME/GCC/gcc-read-write
>      ./contrib/download_prerequisites
>      echo "about to remove all files under" `pwd`/build
>      echo "press enter to continue"
>      read ans
>      rm -rf build
>      mkdir build
>      cd build
>      CFLAGS=-g CXXFLAGS=-g ../configure --prefix=$HOME/opt --disable-bootstrap 
> --with-build-config="bootstrap-debug" --enable-languages=m2 && make -j 30 > 
> $HOME/log 2> $HOME/err
> fi

I will try the above and report.

> does this help?
Thank you.

Sincerely,
john