I'm trying to port a simple example that uses Clang from C to D but for some reason the D version results in a segmentation fault.

This is the C code:
http://pastebin.com/4B2JGz9n

This is the D code:
http://pastebin.com/XPBsSVup

The stacktrace from GDB looks like this:

(gdb) r
Starting program: /Users/jacob/development/d/dstep/bin/dstep NSObject.h
Reading symbols for shared libraries .+.. done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000004
0x0000000100104139 in clang_formatDiagnostic ()
(gdb) bt
#0  0x0000000100104139 in clang_formatDiagnostic ()
#1  0x0000000100001648 in _Dmain ()
#2  0x000000010001baa5 in D2rt6dmain24mainUiPPaZi7runMainMFZv ()
#3  0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
#4  0x000000010001baf7 in D2rt6dmain24mainUiPPaZi6runAllMFZv ()
#5  0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
#6  0x000000010001b5f4 in main ()

I'm using DMD 2.057 on Mac OS X compiling as 64bit.

Any idea what I have done wrong?

-- 
/Jacob Carlborg

On 2012-01-26 10:29, Jacob Carlborg wrote:
> I'm trying to port a simple example that uses Clang from C to D but for
> some reason the D version results in a segmentation fault.
>
> This is the C code:
> http://pastebin.com/4B2JGz9n
>
> This is the D code:
> http://pastebin.com/XPBsSVup
>
> The stacktrace from GDB looks like this:
>
> (gdb) r
> Starting program: /Users/jacob/development/d/dstep/bin/dstep NSObject.h
> Reading symbols for shared libraries .+.. done
>
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000004
> 0x0000000100104139 in clang_formatDiagnostic ()
> (gdb) bt
> #0 0x0000000100104139 in clang_formatDiagnostic ()
> #1 0x0000000100001648 in _Dmain ()
> #2 0x000000010001baa5 in D2rt6dmain24mainUiPPaZi7runMainMFZv ()
> #3 0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
> #4 0x000000010001baf7 in D2rt6dmain24mainUiPPaZi6runAllMFZv ()
> #5 0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
> #6 0x000000010001b5f4 in main ()
>
> I'm using DMD 2.057 on Mac OS X compiling as 64bit.
>
> Any idea what I have done wrong?

I've now found out that I only get this error when compiling as 64bit. When I compile as 32bit everything works fine.

-- 
/Jacob Carlborg

On 01/26/2012 08:44 PM, Jacob Carlborg wrote:
> On 2012-01-26 10:29, Jacob Carlborg wrote:
>> I'm trying to port a simple example that uses Clang from C to D but for
>> some reason the D version results in a segmentation fault.
>>
>> This is the C code:
>> http://pastebin.com/4B2JGz9n
>>
>> This is the D code:
>> http://pastebin.com/XPBsSVup
>>
>> The stacktrace from GDB looks like this:
>>
>> (gdb) r
>> Starting program: /Users/jacob/development/d/dstep/bin/dstep NSObject.h
>> Reading symbols for shared libraries .+.. done
>>
>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>> Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000004
>> 0x0000000100104139 in clang_formatDiagnostic ()
>> (gdb) bt
>> #0 0x0000000100104139 in clang_formatDiagnostic ()
>> #1 0x0000000100001648 in _Dmain ()
>> #2 0x000000010001baa5 in D2rt6dmain24mainUiPPaZi7runMainMFZv ()
>> #3 0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
>> #4 0x000000010001baf7 in D2rt6dmain24mainUiPPaZi6runAllMFZv ()
>> #5 0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
>> #6 0x000000010001b5f4 in main ()
>>
>> I'm using DMD 2.057 on Mac OS X compiling as 64bit.
>>
>> Any idea what I have done wrong?
>
> I've now found out that I only get this error when compiling as 64bit.
> When I compile as 32bit everything works fine.
>

It is possibly an error in the bindings. What are the C and D declarations of the methods you are using?

On 2012-01-26 20:49, Timon Gehr wrote:
> On 01/26/2012 08:44 PM, Jacob Carlborg wrote:
>> On 2012-01-26 10:29, Jacob Carlborg wrote:
>>> I'm trying to port a simple example that uses Clang from C to D but for
>>> some reason the D version results in a segmentation fault.
>>>
>>> This is the C code:
>>> http://pastebin.com/4B2JGz9n
>>>
>>> This is the D code:
>>> http://pastebin.com/XPBsSVup
>>>
>>> The stacktrace from GDB looks like this:
>>>
>>> (gdb) r
>>> Starting program: /Users/jacob/development/d/dstep/bin/dstep NSObject.h
>>> Reading symbols for shared libraries .+.. done
>>>
>>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>>> Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000004
>>> 0x0000000100104139 in clang_formatDiagnostic ()
>>> (gdb) bt
>>> #0 0x0000000100104139 in clang_formatDiagnostic ()
>>> #1 0x0000000100001648 in _Dmain ()
>>> #2 0x000000010001baa5 in D2rt6dmain24mainUiPPaZi7runMainMFZv ()
>>> #3 0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
>>> #4 0x000000010001baf7 in D2rt6dmain24mainUiPPaZi6runAllMFZv ()
>>> #5 0x000000010001b671 in D2rt6dmain24mainUiPPaZi7tryExecMFMDFZvZv ()
>>> #6 0x000000010001b5f4 in main ()
>>>
>>> I'm using DMD 2.057 on Mac OS X compiling as 64bit.
>>>
>>> Any idea what I have done wrong?
>>
>> I've now found out that I only get this error when compiling as 64bit.
>> When I compile as 32bit everything works fine.
>>
>
> It is possibly an error in the bindings. What are the C and D
> declarations of the methods you are using?

This is the declarations I'm using for this example:

http://pastebin.com/fDZ1EftJ

This is the complete file with the bindings:

https://github.com/jacob-carlborg/dstep/blob/master/clang/c/index.d

-- 
/Jacob Carlborg