[M3devel] bootstrapping problems

[Mika Nystrom]

I should probably not have "nocleangcc" and "skipgcc" in there huh...

still a bit weird that the back-end isn't backward compatible?

    Mika

Mika Nystrom writes:
>Jay sent me the following instructions for bootstrapping a while back:
>
>./upgrade.py nocleangcc && 
>    ./do-cm3-all.py realclean skipgcc && 
>    ./do-cm3-all.py buildship skipgcc
>
>It seems reasonable enough for me. 
>
>I unpacked the REL distribution, checked everything out, etc.
>
>However something is very wrong.  The newer back-end does not seem
>compatible with the old m3front (not even backward-compatible), and it's
>getting called at the wrong time:
>
>ignoring ../src/m3overrides
>
>rm .M3SHIP
>rm .M3OVERRIDES
>rm .generic.tmp
>rm .generic.tmp
>inhale libsysutils.m3x
>inhale /usr/local/cm3/pkg/m3core/AMD64_LINUX/libm3core.a
>inhale /usr/local/cm3/pkg/libm3/AMD64_LINUX/libm3.a
>
>new source -> compiling EnvUtils.i3
>m3front ../src/EnvUtils.i3 -w1
>/home/mika/cm3/cm3/m3-sys/m3cc/AMD64_LINUX/cm3cg -gstabs+ -m64 -fPIC -mno-alig
>n-double -funwind-tables -quiet -fno-reorder-blocks EnvUtils.ic -o EnvUtils.is
>cm3cg: fatal error:  *** illegal type: 0x17, at m3cg_lineno 4
>compilation terminated.
>  m3_backend => 1
>m3cc (aka cm3cg) failed compiling: EnvUtils.ic
>rm EnvUtils.is
>
>Why is it calling the new back end?  This is the very first thing it does (it 
>hasn't cleaned m3cc for some reason).
>
>The new back end doesn't like the output of the old compiler:
>
>(119)ukdsl204:~/cm3/cm3/m3-libs/sysutils/AMD64_LINUX>/home/mika/cm3/cm3/m3-sys
>/m3cc/AMD64_LINUX/cm3cg -gstabs+ -m64 -fPIC -mno-align-double -funwind-tables 
>-quiet -fno-reorder-blocks EnvUtils.ic -o EnvUtils.is
>cm3cg: fatal error:  *** illegal type: 0x17, at m3cg_lineno 4
>compilation terminated.
>
>But the old one in /usr/local/cm3/bin likes it just fine...
>
>(120)ukdsl204:~/cm3/cm3/m3-libs/sysutils/AMD64_LINUX>cm3cg -gstabs+ -m64 -fPIC
> -mno-align-double -funwind-tables -quiet -fno-reorder-blocks EnvUtils.ic -o E
>nvUtils.is
>(121)ukdsl204:~/cm3/cm3/m3-libs/sysutils/AMD64_LINUX>
>
>Is something going wrong with the bootstrapping process?  I'm going to
>try to delete the newer back end and see if that fixes it.
>
>     Mika