Re: sbrk() failure while processing tunables

[Siddhesh Poyarekar <siddhesh@sourceware.org>]

On 11/3/21 08:45, DJ Delorie wrote:
> Siddhesh Poyarekar <siddhesh@sourceware.org> writes:
>> That'll work only for the dynamic case, you'll need special code for
>> static linking then.  Alternatively, the rtld_malloc code looks
>> sufficiently independent that it could be split out into its own file
>> and included directly into dl-tunables.c.
> 
> That implies that statically linked executables would have two
> independent malloc implementations...

Ahh no, not the full rtld_malloc implementation, I meant split out only 
the rtld_malloc function (with the couple of static vars it depends on) 
and call rtld_malloc() in dl-tunables instead of malloc().  The tunables 
allocation is likely the first one and it doesn't need to be freed for 
the lifetime of the process.  Also, it cannot use the system malloc 
since it sets up variables that control system malloc.

Siddhesh