Le 23/02/2018 à 14:55, Joerg Sonnenberger a écrit :
On Fri, Feb 23, 2018 at 01:12:13PM +0100, Maxime Villard wrote:
Heck, it wasn't even discussed on tech-kern.


It was discussed on tech-kern.

No, you made some wild claims about GDB behavior which are wrong and
without context. That's not a discussion about a code change.

Pure idiocy, go back read the thread.

If anything, this should be done in the kernel config next to the
-fno-omit-frame-potiner setting. This is a concession to DDB only,
unlike i.e. -mcmode=kernel, it is not necessary for ABI reasons or
correctness,

Moving -fno-shrink-wrap next to -fno-omit-frame-pointer did not fix the
issues. That is to say, the frame was _not_ pushed at the beginning of the
functions.

Then figure out why not. Placing random pessimisation options all over
the place is wrong.

I will revert my change until I find something better (and compatible with
clang).

Maxime

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