use rustc::middle::codegen_fn_attrs::CodegenFnAttrFlags;
use rustc::middle::exported_symbols::{metadata_symbol_name, ExportedSymbol, SymbolExportLevel};
-use rustc::session::config;
+use rustc::session::config::{self, Sanitizer};
use rustc::ty::query::Providers;
use rustc::ty::subst::SubstsRef;
use rustc::ty::Instance;
}));
}
+ if let Some(Sanitizer::Memory) = tcx.sess.opts.debugging_opts.sanitizer {
+ // Similar to profiling, preserve weak msan symbol during LTO.
+ const MSAN_WEAK_SYMBOLS: [&str; 2] = ["__msan_track_origins", "__msan_keep_going"];
+
+ symbols.extend(MSAN_WEAK_SYMBOLS.iter().map(|sym| {
+ let exported_symbol = ExportedSymbol::NoDefId(SymbolName::new(sym));
+ (exported_symbol, SymbolExportLevel::C)
+ }));
+ }
+
if tcx.sess.crate_types.borrow().contains(&config::CrateType::Dylib) {
let symbol_name = metadata_symbol_name(tcx);
let exported_symbol = ExportedSymbol::NoDefId(SymbolName::new(&symbol_name));