Index: ELF/Config.h
===================================================================
--- ELF/Config.h
+++ ELF/Config.h
@@ -31,6 +31,7 @@
   bool ExportDynamic;
   bool NoInhibitExec;
   bool Shared;
+  bool Static = false;
 };
 
 extern Configuration *Config;
Index: ELF/Driver.cpp
===================================================================
--- ELF/Driver.cpp
+++ ELF/Driver.cpp
@@ -53,7 +53,8 @@
   if (Path[0] == ':') {
     Names.push_back(Path.drop_front().str());
   } else {
-    Names.push_back((Twine("lib") + Path + ".so").str());
+    if (!Config->Static)
+      Names.push_back((Twine("lib") + Path + ".so").str());
     Names.push_back((Twine("lib") + Path + ".a").str());
   }
   for (StringRef Dir : Config->InputSearchPaths) {
@@ -124,12 +125,22 @@
   Config->NoInhibitExec = Args.hasArg(OPT_noinhibit_exec);
   Config->Shared = Args.hasArg(OPT_shared);
 
-  for (auto *Arg : Args.filtered(OPT_l, OPT_INPUT)) {
-    StringRef Path = Arg->getValue();
-    if (Arg->getOption().getID() == OPT_l) {
-      addFile(searchLibrary(Path));
-    } else {
-      addFile(Path);
+  for (auto *Arg : Args) {
+    switch (Arg->getOption().getID()) {
+    case OPT_l:
+      addFile(searchLibrary(Arg->getValue()));
+      break;
+    case OPT_INPUT:
+      addFile(Arg->getValue());
+      break;
+    case OPT_Bstatic:
+      Config->Static = true;
+      break;
+    case OPT_Bdynamic:
+      Config->Static = false;
+      break;
+    default:
+      break;
     }
   }
 
Index: ELF/Options.td
===================================================================
--- ELF/Options.td
+++ ELF/Options.td
@@ -1,5 +1,11 @@
 include "llvm/Option/OptParser.td"
 
+def Bdynamic: Flag<["-"], "Bdynamic">,
+     HelpText<"Link against shared libraries">;
+
+def Bstatic: Flag<["-"], "Bstatic">,
+     HelpText<"Do not link against shared libraries">;
+
 def L : Joined<["-"], "L">, MetaVarName<"<dir>">,
   HelpText<"Directory to search for libraries">;
 
@@ -43,6 +49,11 @@
   HelpText<"Set the system root">;
 
 // Aliases
+def alias_Bdynamic_call_shared: Flag<["-"], "call_shared">, Alias<Bdynamic>;
+def alias_Bdynamic_dy: Flag<["-"], "dy">, Alias<Bdynamic>;
+def alias_Bstatic_dn: Flag<["-"], "dn">, Alias<Bstatic>;
+def alias_Bstatic_non_shared: Flag<["-"], "non_shared">, Alias<Bstatic>;
+def alias_Bstatic_static: Flag<["-"], "static">, Alias<Bstatic>;
 def alias_L : Joined<["--"], "library-path=">, Alias<L>;
 def alias_discard_all: Flag<["-"], "x">, Alias<discard_all>;
 def alias_discard_locals: Flag<["-"], "X">, Alias<discard_locals>;
Index: test/elf2/libsearch.s
===================================================================
--- test/elf2/libsearch.s
+++ test/elf2/libsearch.s
@@ -1,21 +1,22 @@
 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
-// RUN:     %p/Inputs/libsearch-dyn.s -o %tdyn.o
+// RUN:   %p/Inputs/libsearch-dyn.s -o %tdyn.o
 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
-// RUN:     %p/Inputs/libsearch-st.s -o %tst.o
+// RUN:   %p/Inputs/libsearch-st.s -o %tst.o
 // RUN: lld -flavor gnu2 -shared %tdyn.o -o %T/libls.so
+// RUN: cp -f %T/libls.so %T/libls2.so
 // RUN: rm -f %T/libls.a
 // RUN: llvm-ar rcs %T/libls.a %tst.o
 // REQUIRES: x86
 
 // Should not link because of undefined symbol _bar
 // RUN: not lld -flavor gnu2 -o %t3 %t.o 2>&1 \
-// RUN:     | FileCheck --check-prefix=UNDEFINED %s
+// RUN:   | FileCheck --check-prefix=UNDEFINED %s
 // UNDEFINED: undefined symbol: _bar
 
 // Should fail if cannot find specified library (without -L switch)
 // RUN: not lld -flavor gnu2 -o %t3 %t.o -lls 2>&1 \
-// RUN:     | FileCheck --check-prefix=NOLIB %s
+// RUN:   | FileCheck --check-prefix=NOLIB %s
 // NOLIB: Unable to find library -lls
 
 // Should use explicitly specified static library
@@ -42,5 +43,34 @@
 // Check long forms as well
 // RUN: lld -flavor gnu2 -o %t3 %t.o --library-path=%T --library=ls
 
+// Should not search for dynamic libraries if -Bstatic is specified
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -Bstatic -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=STATIC %s
+// RUN: not lld -flavor gnu2 -o %t3 %t.o -L%T -Bstatic -lls2 2>&1 \
+// RUN:   | FileCheck --check-prefix=NOLIB2 %s
+// NOLIB2: Unable to find library -lls2
+
+// -Bdynamic should restore default behaviour
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -Bstatic -Bdynamic -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=DYNAMIC %s
+
+// -Bstatic and -Bdynamic should affect only libraries which follow them
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -lls -Bstatic -Bdynamic
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=DYNAMIC %s
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -Bstatic -lls -Bdynamic
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=STATIC %s
+
+// Check aliases as well
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -dn -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=STATIC %s
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -non_shared -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=STATIC %s
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -static -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=STATIC %s
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -Bstatic -dy -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=DYNAMIC %s
+// RUN: lld -flavor gnu2 -o %t3 %t.o -L%T -Bstatic -call_shared -lls
+// RUN: llvm-readobj --symbols %t3 | FileCheck --check-prefix=DYNAMIC %s
+
 .globl _start,_bar;
 _start: