Hi All,

My Kernel is built with the following options:

 

CONFIG_CC_STACKPROTECTOR=y

CONFIG_CC_STACKPROTECTOR_STRONG=y

 

 

We use out-of-tree kernel modules in our project and I need to measure the performance of it by using a bit older gcc version 4.8.5.

 

I can build the modules with gcc above 5 version, but when I try to use gcc version 4.8.5 I’m getting the following error:

 

Makefile:693: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler

 

So it looks like gcc 4.8.5 does not support CONFIG_CC_STACKPROTECTOR_STRONG option, but how to instruct gcc to ignore this one?

 

In runtime, is it possible to instruct kernel to ignore “CONFIG_CC_STACKPROTECTOR_STRONG=y” (without building the kernel) by using sysctl or any other method?

Any help is appreciated.

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Thanks,

Sekhar