3 Commits

Author	SHA1	Message	Date
Anna Zaks	faa9b1561e	[asan] Do not instrument special purpose LLVM sections. ... Do not instrument globals that are placed in sections containing "__llvm" in their name. This fixes a bug in ASan / PGO interoperability. ASan interferes with LLVM's PGO, which places its globals into a special section, which is memcpy-ed by the linker as a whole. When those goals are instrumented, ASan's memcpy wrapper reports an issue. http://reviews.llvm.org/D10541 llvm-svn: 240723	2015-06-25 23:35:48 +00:00
David Majnemer	abf7854d05	IR: Add COMDATs to the IR ... This new IR facility allows us to represent the object-file semantic of a COMDAT group. COMDATs allow us to tie together sections and make the inclusion of one dependent on another. This is required to implement features like MS ABI VFTables and optimizing away certain kinds of initialization in C++. This functionality is only representable in COFF and ELF, Mach-O has no similar mechanism. Differential Revision: http://reviews.llvm.org/D4178 llvm-svn: 211920	2014-06-27 18:19:56 +00:00
Alexander Potapenko	0eb130e34f	[ASan] Do not instrument globals from the llvm.metadata section. ... Fixes https://code.google.com/p/address-sanitizer/issues/detail?id=279. llvm-svn: 204331	2014-03-20 10:48:34 +00:00