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* Debugging 32/64 bit binaries on os/x 10.7 with cvs gdb?
@ 2011-11-29 20:33 Robert Lupton the Good
  2011-11-30  7:47 ` Tristan Gingold
  0 siblings, 1 reply; 2+ messages in thread
From: Robert Lupton the Good @ 2011-11-29 20:33 UTC (permalink / raw)
  To: gdb

If I build gdb from source on os/x 10.7 and attempt to debug python (a 32/64 bit binary), gdb says;

> $ ~/Src/gnu/gdb/gdb /usr/bin/python
> GNU gdb (GDB) 7.3.50.20111109-cvs
> Copyright (C) 2011 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-apple-darwin11.2.0".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> "/usr/bin/python": not in executable format: File format not recognized
> (gdb) quit
> $ file !$
> file /usr/bin/python
> /usr/bin/python: Mach-O universal binary with 2 architectures
> /usr/bin/python (for architecture x86_64):      Mach-O 64-bit executable x86_64
> /usr/bin/python (for architecture i386):        Mach-O executable i386

Is there a way to build gdb to work around this?

					R

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Debugging 32/64 bit binaries on os/x 10.7 with cvs gdb?
  2011-11-29 20:33 Debugging 32/64 bit binaries on os/x 10.7 with cvs gdb? Robert Lupton the Good
@ 2011-11-30  7:47 ` Tristan Gingold
  0 siblings, 0 replies; 2+ messages in thread
From: Tristan Gingold @ 2011-11-30  7:47 UTC (permalink / raw)
  To: Robert Lupton the Good; +Cc: gdb


On Nov 29, 2011, at 9:32 PM, Robert Lupton the Good wrote:

> If I build gdb from source on os/x 10.7 and attempt to debug python (a 32/64 bit binary), gdb says;
> 
>> $ ~/Src/gnu/gdb/gdb /usr/bin/python
>> GNU gdb (GDB) 7.3.50.20111109-cvs
>> Copyright (C) 2011 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>> and "show warranty" for details.
>> This GDB was configured as "x86_64-apple-darwin11.2.0".
>> For bug reporting instructions, please see:
>> <http://www.gnu.org/software/gdb/bugs/>...
>> "/usr/bin/python": not in executable format: File format not recognized
>> (gdb) quit
>> $ file !$
>> file /usr/bin/python
>> /usr/bin/python: Mach-O universal binary with 2 architectures
>> /usr/bin/python (for architecture x86_64):      Mach-O 64-bit executable x86_64
>> /usr/bin/python (for architecture i386):        Mach-O executable i386
> 
> Is there a way to build gdb to work around this?

No.  Currently gdb is not able to debug fat binary.  Use lipo to extract the architecture you want to use.


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2011-11-29 20:33 Debugging 32/64 bit binaries on os/x 10.7 with cvs gdb? Robert Lupton the Good
2011-11-30  7:47 ` Tristan Gingold

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