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3 commits

Author SHA1 Message Date
Stephen Crane
6735f8475e trusty: Increase limit on coverage counters 
Keymaster has more than 4096 counters, so we need to allocate a larger
section for the libfuzzer extra counters. Increases the size of the
extra counters section to 16384.

Bug: 171750250
Test: atest libtrusty_coverage_test
Change-Id: Iaee2c74b6d0c7ae8a2e5a30525759f89f825a091
 2021-01-13 16:09:33 -08:00
Stephen Crane
e962930d19 trusty: Retrieve coverage PCs from coverage record 
Adds the ability to retrieve and save program counter information from
the trusty coverage record data. PC information is saved to a .sancov
file, parseable by the LLVM sancov tool. Sancov can then symbolize and
display this coverage information for consumption by humans.

Adds a sancov dump to the libtrusty_coverage_test for testing.

Bug: 175221942
Test: atest libtrusty_coverage_test
Test: Retrieve sancov file and manually symbolize with sancov
Change-Id: I342ea2ca9abb87986b2904ff69415544ee6070fc
 2020-12-14 22:06:13 -08:00
Tri Vo
a67840f998 trusty: fuzz: Helper lib for libFuzzer extra counters 
Bug: 169776499
Test: /data/nativetest64/libtrusty_coverage_test/libtrusty_coverage_test
Change-Id: Iad18af1f0404fc47bef481955c7a4292ef3a24ec
 2020-11-30 20:09:02 -08:00