Re: [Gm2] ulm 64bit crash

[Gaius Mulley]

John B Wallace Jr <address@hidden> writes:

> There is still a problem using the ulm libraries with the 64bit version of 
> SUSE 9.3 on an Athlon 64. HelloWorld still crashes with a segmentation fault 
> during execution. HelloWorld builds and executes without errors under the 
> 32bit version of SUSE 9.3. 
> 
> 
> MODULE HelloWorld;
> 
>    FROM InOut IMPORT WriteString, WriteLn;
> 
> BEGIN
>    WriteString("Hello World!"); WriteLn;
> END HelloWorld.

Hi John,

many thanks for this report - I get the same on my Debian Pure64.
Also thanks for your analysis - I've not yet had time to investigate
this bug - so will be able to pursue it quicker given your analysis..


BTW - you might want to use the patched gdb and patched gcc-3.3.6
which can be built from gm2-harness as it fixes this warning:

> (gdb) run
> Starting program: /home/john/gm2/new/HelloWorld
> Die: DW_TAG_set_type (abbrev = 11, offset = 150475)
>         has children: FALSE
>         attributes:
>                 DW_AT_type (DW_FORM_ref4) constant ref: 150464 (adjusted)
> Dwarf Error: Cannot find type of die [in module /home/john/gm2/new/HelloWorld]
> (gdb) 


> The problem seems to be associated with the SysTermIO module. If a modified 
> module using a libc call for Isatty is substituted, HelloWorld builds and 
> executes without errors in 64bit.

many thanks for this.. I hadn't tried this experiment..

> Also, the test suite hangs up on 32bit/SUSE 9.3 builds of recent gm2 CVS 
> sources (using harness-0.6):
> 
> Running 
> /home/john/gm2/gm2-harness-0.6/sources/gcc-3.3.6/gcc/testsuite/gm2/cpp/pass/gm2.exp
>  ...
> Running 
> /home/john/gm2/gm2-harness-0.6/sources/gcc-3.3.6/gcc/testsuite/gm2/cse/fail/gm2.exp
>  ...
> Running 
> /home/john/gm2/gm2-harness-0.6/sources/gcc-3.3.6/gcc/testsuite/gm2/cse/pass/gm2.exp
>  ...
> Running 
> /home/john/gm2/gm2-harness-0.6/sources/gcc-3.3.6/gcc/testsuite/gm2/dynamic/pass/gm2.exp
>  ...
> Running 
> /home/john/gm2/gm2-harness-0.6/sources/gcc-3.3.6/gcc/testsuite/gm2/errors/fail/gm2.exp
>  ...
> WARNING: program timed out.

yes true - thanks for the report - its now fixed in the latest CVS,

regards,
Gaius