Re: Bus Error while trying to run the ffi_closure example in the documentation...

[Nathan Rajlich <nathan@tootallnate.net>]

Omg Bobby you're a life saver! That patch did the trick. Thanks all
for all the help! Consider my case solved :)

On Sat, Jan 7, 2012 at 10:27 PM, Bobby Holley <bobbyholley@gmail.com> wrote:
> This might be what you're after:
> https://bugzilla.mozilla.org/show_bug.cgi?id=682180
>
> I emailed the patch to one of the libffi lists a while back - not sure
> if it ever got merged in.
>
> Cheers,
> -bholley
>
> On Sat, Jan 7, 2012 at 12:52 PM, Timothy Wall <twall@users.sf.net> wrote:
>>
>> I'm using ffi_closure on OSX (not lion, though) amd64 target and it performs as expected for me.
>>
>> Have you run the testsuite?  there are ffi_closure tests in that.
>>
>> On Jan 7, 2012, at 3:28 PM, Nathan Rajlich wrote:
>>
>> > Ok so as a little update, the test program I linked to above work on
>> > my Windows XP VM and Ubuntu VMs, so it looks like this might be
>> > something with either the Darwin 64-bit support, or something with my
>> > configuration. If somebody else has an OS X setup and could compile
>> > the example above it would be really helpful. Thanks in advance!
>> >
>> > On Sat, Jan 7, 2012 at 12:14 PM, Nathan Rajlich <nathan@tootallnate.net> wrote:
>> >> Awww nobody? Well for easier reference, here's the source code used in
>> >> question: https://gist.github.com/1575877 . It's straight from the
>> >> libffi docs. Hopefully with the source here somebody else can try
>> >> compiling and letting me know the result. Thanks!
>> >>
>> >> On Fri, Jan 6, 2012 at 12:17 PM, Nathan Rajlich <nathan@tootallnate.net> wrote:
>> >>> Hey all,
>> >>>
>> >>> So I'm trying to run the ffi_closure example from the libffi
>> >>> documentation (the one that wraps fputs() ). When trying to run the
>> >>> program, I get a "Bus Error: 10" and the program crashes.
>> >>>
>> >>> This is on OS X 64-bit (Lion). Put through gdb, this is what I get:
>> >>>
>> >>> ∞ ~/node-ffi/deps (gyp) $ gdb --args ./out/Debug/test
>> >>> GNU gdb 6.3.50-20050815 (Apple version gdb-1705) (Fri Jul  1 10:50:06 UTC 2011)
>> >>> 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: /Users/nrajlich/node-ffi/deps/out/Debug/test
>> >>> Reading symbols for shared libraries ++......................... done
>> >>>
>> >>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>> >>> Reason: KERN_PROTECTION_FAILURE at address: 0x0000000100100a20
>> >>> 0x0000000100100a20 in ?? ()
>> >>> (gdb) bt
>> >>> #0  0x0000000100100a20 in ?? ()
>> >>> #1  0x0000000100001424 in start ()
>> >>>
>> >>>
>> >>> Thanks for looking, any thoughts would be appreciated! Cheers!
>>