ruiu added inline comments. ================ Comment at: ELF/Writer.cpp:674 @@ +673,3 @@ + Elf_Phdr TlsPhdr; + TlsPhdr.p_vaddr = 0; + uintX_t ThreadBSSOffset = 0; ---------------- Do we need this? Isn't an Elf_Phdr zero-initialized? http://reviews.llvm.org/D14167