SkASAN.h and SK_SANITIZE_ADDRESS lead to ABI mismatch

[Alexandre Bique]

Hi,

Here's the buggy scenario:

1. compile skia without asan and export the static library

2. build an app with asan and link to skia

It will lead to crash because, SK_SANITIZE_ADDRESS is calculated at compile time and leads to different sizeof() in at least one object, see SkTarray:

#ifdef SK_SANITIZE_ADDRESS
bool fPoisoned = false;
#endif

This seems wrong to me, and I suggest that the poison tracking condition is computed at configure time and stored into some kind of SkConfig.h.

At least please find a solution which avoids ABI mismatch when using a statically compiled version of Skia.

Thank you very much.

Cheers,

Alex