[Gm2] Some More Snow Leopard Problems

[Michael Lambert]

Hi Gaius,

I have some additional feedback on Snow Leopard (in addition to the  
patches previously submitted and the problem with the duplicate label  
generation in the assembly code).

For iso/run/pass/except2.mod, execution fails as follows.   
Unfortunately, the debugging isn't giving me line number information,  
even though this test is compiled with -g.  There are similar failures  
(KERN_PROTECTION_FAILURE) in except[48].mod.

----------
kuru:testsuite lambert$ ./except2.x0
keepFlying main body
tryFlying main body
fly main body
terminate called after throwing an instance of 'int'
Abort trap
kuru:testsuite lambert$ gdb ./except2.x0
GNU gdb 6.3.50-20050815 (Apple version gdb-1346) (Fri Sep 18 20:40:51  
UTC 2009)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and  
you are
welcome to change it and/or distribute copies of it under certain  
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for  
details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for  
shared libraries .... done

(gdb) run
Starting program: /Volumes/Fantom_HFS+/gnu/gm2/obj/gcc/testsuite/ 
except2.x0
Reading symbols for shared libraries +++. done
keepFlying main body
tryFlying main body
fly main body

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
0x00013215 in fly ()
(gdb) where
#0  0x00013215 in fly ()
#1  0x000132a4 in tryFlying ()
#2  0x0001335b in keepFlying ()
#3  0x000131a8 in _M2_except2_init ()
#4  0x00001918 in init ()
#5  0x00001a29 in main ()
----------

As previously reported, compilation of iso/run/pass/long{,2,3}.mod  
fails with the duplicate assembler label.

----------

Execution of iso/run/pass/shift[23].mod fails in a way which doesn't  
appear to help debugging:

----------
kuru:testsuite lambert$ ./shift2.x0
kuru:testsuite lambert$ echo $?
1
kuru:testsuite lambert$ gdb ./shift2.x0
GNU gdb 6.3.50-20050815 (Apple version gdb-1346) (Fri Sep 18 20:40:51  
UTC 2009)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and  
you are
welcome to change it and/or distribute copies of it under certain  
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for  
details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for  
shared libraries .... done

(gdb) run
Starting program: /Volumes/Fantom_HFS+/gnu/gm2/obj/gcc/testsuite/ 
shift2.x0
Reading symbols for shared libraries +++. done

Program exited with code 01.
----------

This one really seems strange:

/Volumes/Fantom_HFS+/gnu/gm2/gcc-4.1.2/gcc/testsuite/gm2/iso/run/pass/ 
testsystem.mod:111:4: error: total number of bit specified as  
parameters to MAKEADR exceeds address width

If I'm not mistaken, the failure is with MAKEADR(0).

I still have some more errors to report, but this should be a start.

Michael