23 Mar
2018
23 Mar
'18
9:08 p.m.
On Fri, Mar 23, 2018 at 11:50:55AM +0800, Jiaxun Yang wrote:
在 2018-03-22四的 22:21 +0000，James Hogan写道：
Also I think it worth mentioning in the commit message the MIPS configuration you hit this with, presumably a Loongson one? For me decompress_kernel() gets a stack guard on loongson3_defconfig, but not malta_defconfig or malta_defconfig + 64-bit. I presume its sensitive to the compiler inlining stuff into decompress_kernel() or something such that it suddenly qualifies for a stack guard.
Have you tested with CONFIG_CC_STACKPROTECTOR_STRONG=y ?
Yes. for malta_defconfig I could only reproduce by adding an array to decompress_kernel() so that it would get the guard.
Cheers James