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

[Bobby Holley <bobbyholley@gmail.com>]

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!
>