5 Commits

Author	SHA1	Message	Date
Reid Kleckner	df8dd61f23	[MS] Mangle a hash of the main file path into anonymous namespaces ... Summary: This is needed to avoid conflicts in mangled names for codeview types in anonymous namespaces. In CodeView, types refer to each other typically through forward declarations, which contain mangled names. These names have to be unique, otherwise the debugger will look up the mangled name and find the wrong definition. Furthermore, ThinLTO will deduplicate the types, and debug info verification can fail when the types have the wrong sizes. This is PR38608. Fixes PR38609. Reviewers: majnemer, inglorion, hans Subscribers: mehdi_amini, aprantl, JDevlieghere, dexonsmith, cfe-commits Differential Revision: https://reviews.llvm.org/D50877 llvm-svn: 340079	2018-08-17 20:59:27 +00:00
Reid Kleckner	fb93154bf1	[MS] Don't escape MS C++ names with \01 ... It is not needed after LLVM r327734. Now it will be easier to copy-paste IR symbol names from Clang. llvm-svn: 327738	2018-03-16 20:36:49 +00:00
Vlad Tsyrklevich	634c601fe3	[CFI] Add CFI-icall pointer type generalization ... Summary: This change allows generalizing pointers in type signatures used for cfi-icall by enabling the -fsanitize-cfi-icall-generalize-pointers flag. This works by 1) emitting an additional generalized type signature metadata node for functions and 2) llvm.type.test()ing for the generalized type for translation units with the flag specified. This flag is incompatible with -fsanitize-cfi-cross-dso because it would require emitting twice as many type hashes which would increase artifact size. Reviewers: pcc, eugenis Reviewed By: pcc Subscribers: kcc Differential Revision: https://reviews.llvm.org/D39358 llvm-svn: 317044	2017-10-31 22:39:44 +00:00
Peter Collingbourne	8dd14da0dc	CodeGen: Update Clang to use the new type metadata. ... Differential Revision: http://reviews.llvm.org/D21054 llvm-svn: 273730	2016-06-24 21:21:46 +00:00
Peter Collingbourne	2c7f7e31c4	CFI: Introduce -fsanitize=cfi-icall flag. ... This flag causes the compiler to emit bit set entries for functions as well as runtime bitset checks at indirect call sites. Depends on the new function bitset mechanism. Differential Revision: http://reviews.llvm.org/D11857 llvm-svn: 247238	2015-09-10 02:17:40 +00:00