Result of subtracting two symbols should be absolute.

When two linker script symbols are subtracted, the result should be absolute.

This is the behavior of binutils' ld.

Patch by Erick Reyes!

llvm-svn: 321390

1 files changed, 2 insertions, 0 deletions

diff --git a/lld/ELF/ScriptParser.cpp b/lld/ELF/ScriptParser.cpp
index d56500ae7dd..c1176ccfa8d 100644
--- a/lld/ELF/ScriptParser.cpp
+++ b/lld/ELF/ScriptParser.cpp
@@ -151,6 +151,8 @@ static ExprValue add(ExprValue A, ExprValue B) {
 }
 
 static ExprValue sub(ExprValue A, ExprValue B) {
+  if (!A.isAbsolute() && !B.isAbsolute())
+    return A.getValue() - B.getValue();
   return {A.Sec, false, A.getSectionOffset() - B.getValue(), A.Loc};
 }