On Wed, 23 Mar 2016, Jason Chagas wrote:
The the ARM compiler (armcc) provides a subtyping ($Sub/$Super)
mechanism useful as a patching technique (see links below for
details). Can someone tell me if GCC has similar support? If so, where
can I learn more about it?
FYI, before posting this question here, I researched the web
extensivelly on this topic. There seems to be some GNU support for
subtyping in C++. But I had no luck finding any information
specifically for 'C'.
Thanks,
Jason
How to use $Super$$ and $Sub$$ for patching data?:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka15416.html
Using $Super$$ and $Sub$$ to patch symbol definitions:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0474c/Chdefdce.html
(the best list would have been gcc-h...@gcc.gnu.org)
GNU ld has an option --wrap=symbol. Does that roughly match your need?
--
Marc Glisse
