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16 Commits

Author SHA1 Message Date
Lorenzo Martignoni f073541819 [DFSan] New custom wrappers 
Added the following custom wrappers:
  strstr
  strrchr
  memchr
  nanosleep
  socketpair

Tweaked a couple of existing wrappers: if a wrapper returns a pointers derived
from an input pointer, then return the label of the input pointer

Sorted tests invocation

Differential Revision: D2354

llvm-svn: 197601
 2013-12-18 19:25:34 +00:00
Lorenzo Martignoni dc601d8f3a [DFSan] Change the way labels are propagated when comparing memory through libc functions. 
Differential Revision: http://llvm-reviews.chandlerc.com/D2252

llvm-svn: 196388
 2013-12-04 16:48:09 +00:00
Lorenzo Martignoni 895454e1e4 Implement a bunch of custom glibc wrappers & corresponding tests 
llvm-svn: 195749
 2013-11-26 11:45:58 +00:00
Peter Collingbourne f09d5d03fd Revert r195381, "Implement a bunch of custom glibc wrappers & corresponding tests." 
It broke a buildbot.

llvm-svn: 195392
 2013-11-21 23:48:19 +00:00
Peter Collingbourne 0a14a71061 Implement a bunch of custom glibc wrappers & corresponding tests. 
- Introduce several new custom glibc wrappers
- Implement some of the not yet implemented wrappers
- Refactor and extend the tests
- Add script to make sure all declare custom glibc wrappers are implemented & tested.

Patch by Lorenzo Martignoni!

Differential Revision: http://llvm-reviews.chandlerc.com/D2234

llvm-svn: 195381
 2013-11-21 23:18:03 +00:00
Peter Collingbourne 0dca2e5ed1 [dfsan] Initial set of DFSAN_OPTIONS flags. 
llvm-svn: 190379
 2013-09-10 01:51:35 +00:00
Peter Collingbourne 187a169603 [dfsan] Add custom function for dl_iterate_phdr. 
Differential Revision: http://llvm-reviews.chandlerc.com/D1505

llvm-svn: 189503
 2013-08-28 20:18:25 +00:00
Peter Collingbourne 3e5524d6c5 [dfsan] Add custom function for pthread_create. 
Differential Revision: http://llvm-reviews.chandlerc.com/D1504

llvm-svn: 189502
 2013-08-28 20:18:22 +00:00
Peter Collingbourne 469c056299 [dfsan] Integration test for the equal-labels case 
llvm-svn: 189134
 2013-08-23 18:45:22 +00:00
Peter Collingbourne 12b0809eb1 [dfsan] Initial set of custom functions and interceptors for libc. 
Differential Revision: http://llvm-reviews.chandlerc.com/D1397

llvm-svn: 188490
 2013-08-15 21:18:53 +00:00
Peter Collingbourne 0e51eda83b [dfsan] Runtime support for ABI list functionality; can now run integration tests with args ABI. 
Differential Revision: http://llvm-reviews.chandlerc.com/D1351

llvm-svn: 188401
 2013-08-14 18:54:06 +00:00
Peter Collingbourne 7da504faa4 [dfsan] Introduce dfsan_read_label runtime function. 
Differential Revision: http://llvm-reviews.chandlerc.com/D1349

llvm-svn: 188319
 2013-08-13 22:15:40 +00:00
Peter Collingbourne 21b2929aca [dfsan] Introduce dfsan_union runtime function. 
Differential Revision: http://llvm-reviews.chandlerc.com/D1347

llvm-svn: 188229
 2013-08-12 23:47:37 +00:00
Daniel Dunbar bc5dbc435e [tests] Update to use lit_config and lit package, as appropriate. 
llvm-svn: 188116
 2013-08-09 22:14:01 +00:00
Alexey Samsonov f49c076ff7 Simplify (and fix) check-dfsan configs 
llvm-svn: 187968
 2013-08-08 08:26:39 +00:00
Peter Collingbourne 5cbab07d02 DataFlowSanitizer; compiler-rt changes. 
DataFlowSanitizer is a generalised dynamic data flow analysis.

Unlike other Sanitizer tools, this tool is not designed to detect a
specific class of bugs on its own.  Instead, it provides a generic
dynamic data flow analysis framework to be used by clients to help
detect application-specific issues within their own code.

Differential Revision: http://llvm-reviews.chandlerc.com/D967

llvm-svn: 187924
 2013-08-07 22:47:26 +00:00