tree a75f9428a226a5839c6fbeb2180935a811cf0bde
parent 6228292204fd0ce207f3d6cd98f382f2a894bf63
author Anestis Bechtsoudis <anestis@census-labs.com> 1441895264 +0300
committer Anestis Bechtsoudis <anestis@census-labs.com> 1441895264 +0300

Perf + armcap fixes

* Perf is setting 'exclude_callchain_kernel' flag which requires kernels >= 3.7.
   Detect old kernels and abort archInit() if not compatible.
   TODO: See if disabling that flag at runtime for non-compatible kernels affects perf operations

* For ARM kernels running Android API <= 21, if fuzzing target links to
  libcrypto (OpenSSL), OPENSSL_cpuid_setup initialization is triggering a
  SIGILL/ILLOPC at armv7_tick(). Setups using BoringSSL (API >= 22) are
  not affected.

Signed-off-by: Anestis Bechtsoudis <anestis@census-labs.com>