🚀 go-pugleaf

Although I have successfully compiled GCC up to version 2.6.3 on ICL
DRS/NX 7 sparc (build=sparc-unknown-sysv4), I cannot seem to do the
same on 2.7.x (I've tried them all). The build for enquire succeeds
(apparently) but running the created executable results in a
segmentation fault.

running xgcc -c on a hello.c creates a hello.o that can be linked
using the native cc to create an executable that runs ok.

I dumped the ld command line for building hello from xgcc (-v) to see
what was going on. By trial and error I found that the ld command
would create a runnable executable if I omitted the crtbegin.o and
crtend.o from the link.

If I *excluded* the crtbegin.o from the link then hello core dumps
with an illegal instruction.

If I *excluded* crtend.o from the link then hello core dumps *after*
with an illegal instruction.

If I *excluded* crtend.o from the link then hello core dumps *after*
running the program (IYSWIM), again with an illegal instruction.

This seems to me to be the wrong way round. If crtbegin.o were causing
a problem, I would expect that if I excluded it then the program might
start ok and run, but then trap when it hit the faulty crtend.o, but
it seems to be doing the reverse.

Is there a mix up between crtbegin and crtend? I dumped the symbols
from nm for crtbegin.o and crtend.o and it would seem that begin calls
destructors and end calls destructors (please see below). This does
not seem logical.

wc@vinca:/wilf/gcc-2.7.2>nm stage1/crtbegin.o
         U _GLOBAL_OFFSET_TABLE_
00000000 ? __CTOR_LIST__
00000000 ? __DTOR_LIST__
00000000 t __do_global_dtors_aux
0000007c t fini_dummy
00000000 d force_to_data
00000000 t gcc2_compiled.

wc@vinca:/wilf/gcc-2.7.2>nm stage1/crtend.o
         U _GLOBAL_OFFSET_TABLE_
00000000 ? __CTOR_END__
00000000 ? __DTOR_END__
00000000 t __do_global_ctors_aux
00000000 d force_to_data
00000000 t gcc2_compiled.
0000007c t init_dummy

wc@vinca:/wilf/gcc-2.7.2>stage1/enquire -f
Segmentation Fault (core dumped)

Anybody any ideas? What's my problem and how do I fix it? Why is this
different from 2.6.3 to 2.7.x?

TVMIA
Wilf Coles
c.cols@slh0613.wins.icl.co.uk
wilf@cix.compulink.co.uk