[Mono-list] Source lines in backtraces ....

[Piers Haken]

Yeah, I'd be interested to find out how/why the ECMA guys let Microsoft
pass around interfaces by IntPtr.

I mean... talk about 'open'...

Piers.

-----Original Message-----
From: Martin Baulig [mailto:martin@gnome.org] 
Sent: Wednesday, May 22, 2002 4:14 AM
To: Lawrence Pit
Cc: mono-list@ximian.com
Subject: Re: [Mono-list] Source lines in backtraces ....


"Lawrence Pit" <loz@cable.a2000.nl> writes:

> This is only supposed to work on Linux though? As in cygwin I get the
> following:

Hi Lawrence,

> $ mcs -g T26.cs
> error CS-0018: Cannot generate debugging information on this platform
> Error: Compilation failed

You cannot use this with mscorlib:

a) due to lacking documentation, we do not know how microsofts symbol
   writer works.

b) we also do not know how to use a different symbol writer with
mscorlib.

So to make this work on Windows, you must run mcs in mono, so that it's
using our corlib.

> $ mono --debugdwarf ./T26.exe

That should be --debug=dwarf, hmm.

> Recreating T26.il from ./T26.exe.
> Assembler messages:
> Error: can't open T26-debug.s for reading
> T26-debug.s: No such file or directory

You can ignore this message, it's trying to open the mcs-generated
symbol file which does not exist.  I'll add a check for this.

> (process:1928): ** WARNING **: Can't open symbol file: T26-debug.o

Same here, it's trying to open the non-existant symbol file.

> X
> RESULT: 0
> Message: debug-dwarf2.c:776:dwarf2_write_class(): System.Object - 0x1c

> - 0x10000 1
> Message: debug-dwarf2.c:776:dwarf2_write_class(): System.IntPtr - 0x18
-
> 0x2109
> ./T26.exe-dwarf.s: Assembler messages:
> ./T26.exe-dwarf.s:168: Error: unknown pseudo-op: `.previous'
> ./T26.exe-dwarf.s:174: Error: unknown pseudo-op: `.2byte'
> ./T26.exe-dwarf.s:209: Warning: rest of line ignored; first ignored

Ok, that's a bug.  I'll fix it.

-- 
Martin Baulig
martin@gnome.org

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