From 5c068ef82cfb3344f10d7ab3c42003069dd000bb Mon Sep 17 00:00:00 2001
From: Michka Popoff <michkapopoff@gmail.com>
Date: Fri, 8 Feb 2019 20:44:50 +0100
Subject: [PATCH] elf.rb: avoid corrupted elf files

Some elf files like unittest files or memory dumps may not be completely
readable by readelf.

Readelf will fail after the following message:
readelf: Warning: possibly corrupt ELF header - it has a non-zero program header offset, but no program headers

This patches avoid these files when there is a non zero offset but no
program headers
---
 Library/Homebrew/os/linux/elf.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/os/linux/elf.rb b/Library/Homebrew/os/linux/elf.rb
index e73f8154a2..b7a1fcb72d 100644
--- a/Library/Homebrew/os/linux/elf.rb
+++ b/Library/Homebrew/os/linux/elf.rb
@@ -133,8 +133,10 @@ module ELFShim
       soname = nil
       needed = []
       command = ["readelf", "-d", path.expand_path.to_s]
-      lines = Utils.safe_popen_read(*command).split("\n")
+      lines = Utils.popen_read(*command, err: :out).split("\n")
       lines.each do |s|
+        next if s.start_with?("readelf: Warning: possibly corrupt ELF header")
+
         filename = s[/\[(.*)\]/, 1]
         next if filename.nil?