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(parent: fd1d986) | patch
csky: Initial stack protector support
authorMao Han <han_mao@c-sky.com>
Fri, 11 Oct 2019 02:56:55 +0000 (10:56 +0800)
committerGuo Ren <guoren@linux.alibaba.com>
Fri, 21 Feb 2020 07:43:24 +0000 (15:43 +0800)
commit2f78c73f78c39dabc5c44ad8dd61fd6ec65636d6
treeb9ba43f4bb9d709d612c77b3ed4c260a204a2d38tree | snapshot
parentfd1d98650ac0042d475155116e65fd17eb379542commit | diff
csky: Initial stack protector support

This is a basic -fstack-protector support without per-task canary
switching. The protector will report something like when stack
corruption is detected:

It's tested with strcpy local array overflow in sys_kill and get:
stack-protector: Kernel stack is corrupted in: sys_kill+0x23c/0x23c

TODO:
 - Support task switch for different cannary

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
arch/csky/Kconfig diff | blob | history
arch/csky/include/asm/stackprotector.h [new file with mode: 0644] blob
arch/csky/kernel/process.c diff | blob | history
Domain: System / Kernel;