[PATCH] D44986: Initialize Elf header and Program Header to Zero

[Rumeet Dhindsa via Phabricator via llvm-commits]

rdhindsa created this revision.
rdhindsa added a reviewer: ruiu.
Herald added subscribers: llvm-commits, arichardson, emaste.

Initialize Elf header and Program Header to Zero to ensure that bytes not assigned any value later on are initialized properly.


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D44986

Files:
  lld/ELF/Writer.cpp


Index: lld/ELF/Writer.cpp
===================================================================
--- lld/ELF/Writer.cpp
+++ lld/ELF/Writer.cpp
@@ -2108,6 +2108,7 @@
 
 template <class ELFT> void Writer<ELFT>::writeHeader() {
   uint8_t *Buf = Buffer->getBufferStart();
+  memset(Buf, 0 , sizeof(Elf_Ehdr)+sizeof(Elf_Phdr));
   memcpy(Buf, "\177ELF", 4);
 
   // Write the ELF header.


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