13 Apr
2024
13 Apr
'24
6:18 p.m.
On Sun, 31 Mar 2024 23:03:18 +0300, Eugene Uriev wrote:
There was no "mcheck" for U-Boot before.
Since U-Boot has only 1 thread, and normally makes 4000+ - 6000+ mallocs, it's better to use havier canaries to protect heap-chunks. My variant uses 2x8 = 16byte-long protector. And the multiplier could be changed to tune speed/protection tradeoff. This protects not only against memset()-s, but against "near" wild pointers too, and makes more probable to catch "distant" ones.
[...]
Applied to u-boot/master, thanks!
--
Tom