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4 Commits

Author SHA1 Message Date
Jianzhou Zhao db7fe6cd4b [dfsan] Propagate origin tracking at store 
This is a part of https://reviews.llvm.org/D95835.

Reviewed By: morehouse, gbalats

Differential Revision: https://reviews.llvm.org/D97789
 2021-03-04 23:34:44 +00:00
George Balatsouras c9075a1c8e [dfsan] Record dfsan metadata in globals 
This will allow identifying exactly how many shadow bytes were used
during compilation, for when fast8 mode is introduced.

Also, it will provide a consistent matching point for instrumentation
tests so that the exact llvm type used (i8 or i16) for the shadow can
be replaced by a pattern substitution. This is handy for tests with
multiple prefixes.

Reviewed by: stephan.yichao.zhao, morehouse

Differential Revision: https://reviews.llvm.org/D97409
 2021-02-26 14:42:46 -08:00
Jianzhou Zhao a05aa0dd5e [dfsan] Update memset and dfsan_(set|add)_label with origin tracking 
This is a part of https://reviews.llvm.org/D95835.

Reviewed-by: morehouse

Differential Revision: https://reviews.llvm.org/D97302
 2021-02-23 23:16:33 +00:00
Jianzhou Zhao 7e658b2fdc [dfsan] Instrument origin variable and function definitions 
This is a part of https://reviews.llvm.org/D95835.

Reviewed-by: morehouse, gbalats

Differential Revision: https://reviews.llvm.org/D96977
 2021-02-18 23:50:05 +00:00