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5 Commits

Author SHA1 Message Date
Peter Collingbourne 6e7908ddb7 docs: Document byte arrays. 
llvm-svn: 231994
 2015-03-12 00:30:41 +00:00
Peter Collingbourne 4b0924dad6 docs: Document CFI padding and all-ones optimizations. Link to viewvc. 
llvm-svn: 230588
 2015-02-26 00:18:04 +00:00
Peter Collingbourne 03054d489e docs: Document optimizations in control flow integrity design doc. 
llvm-svn: 230458
 2015-02-25 03:35:03 +00:00
Peter Collingbourne 0100e6c08c CFI: Improve design doc with larger virtual tables and asm examples. 
llvm-svn: 230254
 2015-02-23 20:22:17 +00:00
Peter Collingbourne a4ccff3281 Implement Control Flow Integrity for virtual calls. 
This patch introduces the -fsanitize=cfi-vptr flag, which enables a control
flow integrity scheme that checks that virtual calls take place using a vptr of
the correct dynamic type. More details in the new docs/ControlFlowIntegrity.rst
file.

It also introduces the -fsanitize=cfi flag, which is currently a synonym for
-fsanitize=cfi-vptr, but will eventually cover all CFI checks implemented
in Clang.

Differential Revision: http://reviews.llvm.org/D7424

llvm-svn: 230055
 2015-02-20 20:30:56 +00:00