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Freeing __malloc_av and impure_data
- From: Aras Vaichas <arasv at magellan-technology dot com>
- To: newlib at sourceware dot org
- Date: Fri, 26 Nov 2010 15:42:06 +1100
- Subject: Freeing __malloc_av and impure_data
Hi, I'm building a binary for a non-Linux embedded AVR32 application
and I'm getting close to my 16K of SRAM limit.
Looking at my elf file, I see that impure_data uses 1K of memory.
00000044 l O .data 00000400 impure_data
I understand that it is somehow used for rentrancy in newlib, but
AFAIK I don't need it.
Is there a way to reduce this, or remove it completely?
There is also a whole load of malloc related data as well:
00000444 g O .data 00000408 __malloc_av_
Can I free that up as well?
I use very little of newlib, and I've even replaced the stdio library
with my own to reduce the overall size and footprint. It would be
great if I could also remove or reduce these two symbols.
Aras