Index: ELF/Target.h
===================================================================
--- ELF/Target.h
+++ ELF/Target.h
@@ -41,6 +41,7 @@
   bool supportsLazyRelocations() const { return LazyRelocations; }
   unsigned getGotHeaderEntriesNum() const { return GotHeaderEntriesNum; }
   unsigned getGotPltHeaderEntriesNum() const { return GotPltHeaderEntriesNum; }
+  unsigned getELFFlags() const { return ELFFlags; }
   virtual unsigned getDynReloc(unsigned Type) const { return Type; }
   virtual bool isTlsDynReloc(unsigned Type) const { return false; }
   virtual unsigned getPltRefReloc(unsigned Type) const;
@@ -91,6 +92,7 @@
   unsigned PltZeroEntrySize = 0;
   unsigned GotHeaderEntriesNum = 0;
   unsigned GotPltHeaderEntriesNum = 3;
+  unsigned ELFFlags = 0;
   bool LazyRelocations = false;
 };
 
Index: ELF/Target.cpp
===================================================================
--- ELF/Target.cpp
+++ ELF/Target.cpp
@@ -1254,6 +1254,11 @@
 template <class ELFT> MipsTargetInfo<ELFT>::MipsTargetInfo() {
   PageSize = 65536;
   GotHeaderEntriesNum = 2;
+  // FIXME: In fact ELF flags depends on ELF flags of input object files
+  // and selected emulation.
+  ELFFlags = EF_MIPS_ABI_O32 | EF_MIPS_CPIC | EF_MIPS_ARCH_32R2;
+  if (Config->Shared)
+    ELFFlags |= EF_MIPS_PIC;
 }
 
 template <class ELFT>
Index: ELF/Writer.cpp
===================================================================
--- ELF/Writer.cpp
+++ ELF/Writer.cpp
@@ -1021,6 +1021,7 @@
   EHdr->e_entry = getEntryAddr();
   EHdr->e_phoff = sizeof(Elf_Ehdr);
   EHdr->e_shoff = SectionHeaderOff;
+  EHdr->e_flags = Target->getELFFlags();
   EHdr->e_ehsize = sizeof(Elf_Ehdr);
   EHdr->e_phentsize = sizeof(Elf_Phdr);
   EHdr->e_phnum = Phdrs.size();
Index: test/ELF/basic-mips.s
===================================================================
--- test/ELF/basic-mips.s
+++ test/ELF/basic-mips.s
@@ -28,7 +28,10 @@
 # CHECK-NEXT:   Entry: 0x20000
 # CHECK-NEXT:   ProgramHeaderOffset: 0x34
 # CHECK-NEXT:   SectionHeaderOffset: 0x20084
-# CHECK-NEXT:   Flags [ (0x0)
+# CHECK-NEXT:   Flags [
+# CHECK-NEXT:     EF_MIPS_ABI_O32
+# CHECK-NEXT:     EF_MIPS_ARCH_32R2
+# CHECK-NEXT:     EF_MIPS_CPIC
 # CHECK-NEXT:   ]
 # CHECK-NEXT:   HeaderSize: 52
 # CHECK-NEXT:   ProgramHeaderEntrySize: 32
Index: test/ELF/emulation.s
===================================================================
--- test/ELF/emulation.s
+++ test/ELF/emulation.s
@@ -112,7 +112,10 @@
 # MIPS-NEXT:   Entry:
 # MIPS-NEXT:   ProgramHeaderOffset: 0x34
 # MIPS-NEXT:   SectionHeaderOffset:
-# MIPS-NEXT:   Flags [ (0x0)
+# MIPS-NEXT:   Flags [
+# MIPS-NEXT:     EF_MIPS_ABI_O32
+# MIPS-NEXT:     EF_MIPS_ARCH_32R2
+# MIPS-NEXT:     EF_MIPS_CPIC
 # MIPS-NEXT:   ]
 
 # RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux %s -o %tmipsel
@@ -138,7 +141,10 @@
 # MIPSEL-NEXT:   Entry:
 # MIPSEL-NEXT:   ProgramHeaderOffset: 0x34
 # MIPSEL-NEXT:   SectionHeaderOffset:
-# MIPSEL-NEXT:   Flags [ (0x0)
+# MIPSEL-NEXT:   Flags [
+# MIPSEL-NEXT:     EF_MIPS_ABI_O32
+# MIPSEL-NEXT:     EF_MIPS_ARCH_32R2
+# MIPSEL-NEXT:     EF_MIPS_CPIC
 # MIPSEL-NEXT:   ]
 
 # RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-linux %s -o %taarch64
Index: test/ELF/mips-elf-flags.s
===================================================================
--- /dev/null
+++ test/ELF/mips-elf-flags.s
@@ -0,0 +1,27 @@
+# Check generation of MIPS specific ELF header flags.
+
+# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t.o
+# RUN: ld.lld %t.o -shared -o %t.so
+# RUN: llvm-readobj -h %t.so | FileCheck -check-prefix=SO %s
+# RUN: ld.lld %t.o -o %t.exe
+# RUN: llvm-readobj -h %t.exe | FileCheck -check-prefix=EXE %s
+
+# REQUIRES: mips
+
+  .text
+  .globl  __start
+__start:
+  nop
+
+# SO:      Flags [
+# SO-NEXT:   EF_MIPS_ABI_O32
+# SO-NEXT:   EF_MIPS_ARCH_32R2
+# SO-NEXT:   EF_MIPS_CPIC
+# SO-NEXT:   EF_MIPS_PIC
+# SO-NEXT: ]
+
+# EXE:      Flags [
+# EXE-NEXT:   EF_MIPS_ABI_O32
+# EXE-NEXT:   EF_MIPS_ARCH_32R2
+# EXE-NEXT:   EF_MIPS_CPIC
+# EXE-NEXT: ]