[bitlug] gcc c extensions - useful attributes
- From: Turuvanur Pavan-A20404 <pavan.tc@xxxxxxxxxxxx>
- To: "Bitlug (E-mail)" <bitlug@xxxxxxxxxxxxx>
- Date: Fri, 3 Sep 2004 11:24:18 +0530
Hi,
found some really useful gcc attributes, most of which have abundant
usage in critical systems s/w.
Here is a link that lists them.
http://www.ohse.de/uwe/articles/gcc-attributes.html#func-section
Also, here is an example of one of its usage:
$KERNEL_SRC_DIR/include/linux/init.h :
#define __init __attribute__((__section__(".init.text")))
__init is used as a function attribute. Examples are init_module,
which is the starting point (called by insmod) for any device
driver in linux.
check out what "section" does, in the above mentioned link.
Pavan
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