toolchain: Globally use '-fno-strict-overflow'

This turns on -fwrapv and -fwrapv-pointers.

As per GCC docs:

  "This option instructs the compiler to assume that signed arithmetic
   overflow of addition, subtraction and multiplication wraps around
   using twos-complement representation. This flag enables some
   optimizations and disables others."

All of our targets fall under this category.

For some time now we've been using -Wall which implies
-Wstrict-overflow=2, which only warns when the compiler actually
implements a possibly questionable optimization, so I'd expect this to
not affect our code size at all.

Change-Id: I8e1c10183e390c6d0897e81f84a5df4590b02d84

0 files changed, 0 insertions, 0 deletions