Index: ELF/LinkerScript.h
===================================================================
--- ELF/LinkerScript.h
+++ ELF/LinkerScript.h
@@ -67,6 +67,9 @@
   // Command attributes for PROVIDE, HIDDEN and PROVIDE_HIDDEN.
   bool Provide = false;
   bool Hidden = false;
+
+  // Whether the "." is available.
+  bool DotAvailable = true;
 };
 
 // Linker scripts allow additional constraints to be put on ouput sections.
Index: ELF/LinkerScript.cpp
===================================================================
--- ELF/LinkerScript.cpp
+++ ELF/LinkerScript.cpp
@@ -370,11 +370,11 @@
 
   for (const std::unique_ptr<BaseCommand> &Base : Opt.Commands) {
     if (auto *Cmd = dyn_cast<SymbolAssignment>(Base.get())) {
-      if (Cmd->Name == ".") {
+      if (Cmd->Name == "." && Cmd->DotAvailable)
         Dot = Cmd->Expression(Dot);
-      } else if (Cmd->Sym) {
-        cast<DefinedRegular<ELFT>>(Cmd->Sym)->Value = Cmd->Expression(Dot);
-      }
+      else if (Cmd->Sym)
+        cast<DefinedRegular<ELFT>>(Cmd->Sym)->Value = Cmd->Expression(
+            Cmd->DotAvailable ? Dot : 0);
       continue;
     }
 
@@ -653,10 +653,14 @@
 void ScriptParser::run() {
   while (!atEOF()) {
     StringRef Tok = next();
-    if (Handler Fn = Cmd.lookup(Tok))
+    if (Handler Fn = Cmd.lookup(Tok)) {
       (this->*Fn)();
-    else
+    } else if (SymbolAssignment *Cmd = readProvideOrAssignment(Tok)) {
+      Cmd->DotAvailable = false;
+      Opt.Commands.emplace_back(Cmd);
+    } else {
       setError("unknown directive: " + Tok);
+    }
   }
 }
 
Index: test/ELF/invalid-linkerscript.test
===================================================================
--- test/ELF/invalid-linkerscript.test
+++ test/ELF/invalid-linkerscript.test
@@ -15,7 +15,7 @@
 
 # RUN: echo foobar > %t1
 # RUN: not ld.lld %t1 no-such-file 2>&1 | FileCheck -check-prefix=ERR1 %s
-# ERR1: unknown directive: foobar
+# ERR1: unexpected EOF
 # ERR1: cannot open no-such-file:
 
 # RUN: echo "foo \"bar" > %t2
Index: test/ELF/linkerscript/linkerscript-symbols.s
===================================================================
--- test/ELF/linkerscript/linkerscript-symbols.s
+++ test/ELF/linkerscript/linkerscript-symbols.s
@@ -41,6 +41,41 @@
 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN3 %s
 # HIDDEN3: 0000000000000001         *ABS*    00000000 .hidden newsym
 
+# The symbol is not referenced. Don't provide it.
+# RUN: echo "PROVIDE(newsym = 1);" > %t.script
+# RUN: ld.lld -o %t1 --script %t.script %t
+# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=PROVIDE4 %s
+# PROVIDE4-NOT: 0000000000000001         *ABS*    00000000 newsym
+
+# The symbol is not referenced. Don't provide it.
+# RUN: echo "PROVIDE_HIDDEN(newsym = 1);" > %t.script
+# RUN: ld.lld -o %t1 --script %t.script %t
+# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN4 %s
+# HIDDEN4-NOT: 0000000000000001         *ABS*    00000000 .hidden newsym
+
+# Provide existing symbol. The value should be 0, even though we
+# have value of 1 in PROVIDE()
+# RUN: echo "PROVIDE(somesym = 1);" > %t.script
+# RUN: ld.lld -o %t1 --script %t.script %t
+# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=PROVIDE5 %s
+# PROVIDE5: 0000000000000000         *ABS*    00000000 somesym
+
+# Provide existing symbol. The value should be 0, even though we
+# have value of 1 in PROVIDE_HIDDEN(). Visibility should not change
+# RUN: echo "PROVIDE_HIDDEN(somesym = 1);" > %t.script
+# RUN: ld.lld -o %t1 --script %t.script %t
+# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN5 %s
+# HIDDEN5: 0000000000000000         *ABS*    00000000 somesym
+
+# Provide existing symbol. The value should be 0, even though we
+# have value of 1 in PROVIDE_HIDDEN(). Visibility should not change
+# RUN: echo ". = 0x1000; globalsym = .; SECTIONS { localsym = .; }" > %t.script
+# RUN: ld.lld -o %t1 --script %t.script %t
+# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DOT %s
+# DOT: 0000000000000000         *ABS*    00000000 somesym
+# DOT: 0000000000000000         *ABS*    00000000 globalsym
+# DOT: 0000000000000120         *ABS*    00000000 localsym
+
 .global _start
 _start:
  nop