Re: problem when mapping malloc to GC_malloc.

[Christian Nolte <ch dot nolte at noltec dot org>]

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Hi Abhishek,

abhishek desai wrote:
> My JNI code includes redefinitions to the malloc, free and realloc
> functions (shown below). These functions call GC_malloc, GC_free and
> GC_realloc respectively. This is done so that any calls to the malloc
> get allocated through the garbage collector. 

I presume you are using Hans Boehm's garbage collector? If so, did you
follow the instructions on:

http://www.hpl.hp.com/personal/Hans_Boehm/gc/simple_example.html

What platform are you developing for? If it is not Linux, you have to
make sure that GC_INIT() is being called before using any of the GC_xxx
functions.


> However this is failing
> with segfault. Any clues why this does not work ?
> I am using this code along with the libgcj library linked dynamically
> with my application.
> 
> void *malloc(size_t size)
> {
>         return GC_malloc(size);
> }
> 
> void *realloc(void *ptr, size_t size)
> {
>         return GC_realloc(ptr, size);
> }
> 
> void free(void *ptr)
> {
>         GC_free(ptr);
> }

Perhaps you can give us some more context. A simple, compilable example
would be great to see where and how exactly you are using your
redefinitions.

Best regards,
Christian


- --
"He's an unconventional pirate paramedic with a mysterious suitcase
 handcuffed to his arm. She's a pregnant gypsy widow from aristocratic
 European stock. They fight crime!"

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