CodeGen: Add a target option for emitting .addrsig directives for all address-significant symbols.
Differential Revision: https://reviews.llvm.org/D48143
llvm-svn: 337331
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 1b1edfb..30c95a7 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1529,6 +1529,14 @@
}
}
+ if (TM.Options.EmitAddrsig) {
+ // Emit address-significance attributes for all globals.
+ OutStreamer->EmitAddrsig();
+ for (const GlobalValue &GV : M.global_values())
+ if (!GV.getName().startswith("llvm.") && !GV.hasAtLeastLocalUnnamedAddr())
+ OutStreamer->EmitAddrsigSym(getSymbol(&GV));
+ }
+
// Allow the target to emit any magic that it wants at the end of the file,
// after everything else has gone out.
EmitEndOfAsmFile(M);