4 Commits

Author	SHA1	Message	Date
Evgeniy Stepanov	5d69168906	[msan] Get rid of "using std::string" in msandr. ... llvm-svn: 177714	2013-03-22 08:47:42 +00:00
Reid Kleckner	2325273641	[msan] Clean up extensions during msandr shutdown ... Otherwise debug DynamoRIO complains at us for leaking memory. llvm-svn: 176947	2013-03-13 13:59:09 +00:00
Reid Kleckner	c9d382b5a4	[msan] intercept dlopen and clear shadow for it ... Summary: The loader does not call mmap() through the PLT because it has to bootstrap the process before libc is present. Hooking dlopen() isn't enough either because the loader runs module initializers before returning, and they could run arbitrary msan instrumented code. If msandr is present, then we can intercept the mmaps from dlopen at the syscall layer and clear the shadow there. If msandr is missing, we clear the shadow after dlopen() and hope any initializers are trivial. Reviewers: eugenis CC: kcc, llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D509 llvm-svn: 176818	2013-03-11 18:07:42 +00:00
Evgeniy Stepanov	3065014026	[msan] MSanDR: initial commit. ... MSanDR is a DynamoRio-based tool that handles uninstrumented libraries and dynamically generated code for MSan. llvm-svn: 175883	2013-02-22 09:34:19 +00:00