commit a8971514264996e7ab3dc69acecbc332afbef6f5
author Elliott Hughes <enh@google.com> Wed Jun 27 14:39:06 2018 -0700
committer Elliott Hughes <enh@google.com> Wed Jun 27 14:39:06 2018 -0700
tree ab65c3ffe9eda58ed01990f9fe6437de110be125
parent 92c6f7ee9014f434fbcce89ab894c745e36732d2

linker: improve "bad ELF magic" error.

Include what we actually saw.

Bug: http://b/79463184
Test: ran tests
Change-Id: Id5f8aa3ab94b411ea839b0a1ada9beda9053a10f

linker/linker_phdr.cpp

diff --git a/linker/linker_phdr.cpp b/linker/linker_phdr.cpp
index b24be92..54354a8 100644
--- a/linker/linker_phdr.cpp
+++ b/linker/linker_phdr.cpp
@@ -213,7 +213,8 @@
 
 bool ElfReader::VerifyElfHeader() {
   if (memcmp(header_.e_ident, ELFMAG, SELFMAG) != 0) {
-    DL_ERR("\"%s\" has bad ELF magic", name_.c_str());
+    DL_ERR("\"%s\" has bad ELF magic: %02x%02x%02x%02x", name_.c_str(),
+           header_.e_ident[0], header_.e_ident[1], header_.e_ident[2], header_.e_ident[3]);
     return false;
   }