elflint: Support checking ELF files with compressed sections.

Simply unconditionally uncompress any section to make sure indexes between
sections check out. Add some testcases with various compressed sections.

https://sourceware.org/bugzilla/show_bug.cgi?id=21332

Signed-off-by: Mark Wielaard <[email protected]>

4 files changed, 37 insertions, 2 deletions

diff --git a/tests/ChangeLog b/tests/ChangeLog
index 3479cf07..5f7bcddb 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,9 @@
+2017-04-05  Mark Wielaard  <[email protected]>
+
+	* test-subr.sh (testrun_on_self_compressed): New function.
+	* run-elflint-self.sh: Call testrun_on_self_compressed.
+	* run-elflint-test.sh: Add testfile42z and testfile-s390x-hash-bothz.
+
 2017-03-30  Mark Wielaard  <[email protected]>
 
 	* peel_type.c: New file.
diff --git a/tests/run-elflint-self.sh b/tests/run-elflint-self.sh
index 013109db..58fa7d0f 100755
--- a/tests/run-elflint-self.sh
+++ b/tests/run-elflint-self.sh
@@ -1,5 +1,5 @@
 #! /bin/sh
-# Copyright (C) 2005, 2007 Red Hat, Inc.
+# Copyright (C) 2005, 2007, 2017 Red Hat, Inc.
 # This file is part of elfutils.
 # Written by Ulrich Drepper <[email protected]>, 2005.
 #
@@ -19,3 +19,4 @@
 . $srcdir/test-subr.sh
 
 testrun_on_self ${abs_top_builddir}/src/elflint --quiet --gnu-ld
+testrun_on_self_compressed ${abs_top_builddir}/src/elflint --quiet --gnu-ld
diff --git a/tests/run-elflint-test.sh b/tests/run-elflint-test.sh
index f3bd9012..caf172a6 100755
--- a/tests/run-elflint-test.sh
+++ b/tests/run-elflint-test.sh
@@ -33,6 +33,11 @@ testrun ${abs_top_builddir}/src/elflint -q testfile33
 testfiles testfile42
 testrun ${abs_top_builddir}/src/elflint -q --gnu-ld testfile42
 
+# Contains debuginfo, compress it, recheck
+tempfiles testfile42z
+testrun ${abs_top_builddir}/src/elfcompress -f -q -o testfile42z testfile42
+testrun ${abs_top_builddir}/src/elflint -q --gnu-ld testfile42z
+
 testfiles testfile46
 testrun ${abs_top_builddir}/src/elflint -q testfile46
 
@@ -47,4 +52,9 @@ testrun ${abs_top_builddir}/src/elflint -q --gnu-ld testlib_dynseg.so
 testfiles testfile-s390x-hash-both
 testrun ${abs_top_builddir}/src/elflint -q --gnu-ld testfile-s390x-hash-both
 
+# Compress the symtab/strtab just because and recheck
+tempfiles testfile-s390x-hash-bothz
+testrun ${abs_top_builddir}/src/elfcompress -f -q --name='.s??tab' -o testfile-s390x-hash-bothz testfile-s390x-hash-both
+testrun ${abs_top_builddir}/src/elflint -q --gnu-ld testfile-s390x-hash-bothz
+
 exit 0
diff --git a/tests/test-subr.sh b/tests/test-subr.sh
index f397aed1..a765db63 100644
--- a/tests/test-subr.sh
+++ b/tests/test-subr.sh
@@ -1,5 +1,5 @@
 #! /bin/sh
-# Copyright (C) 2005-2015 Red Hat, Inc.
+# Copyright (C) 2005-2015, 2017 Red Hat, Inc.
 # This file is part of elfutils.
 #
 # This file is free software; you can redistribute it and/or modify
@@ -139,6 +139,24 @@ testrun_on_self()
   if test $exit_status != 0; then exit $exit_status; fi
 }
 
+# Compress the files first. Compress both debug sections and symtab.
+testrun_on_self_compressed()
+{
+  exit_status=0
+
+  for file in $self_test_files; do
+      tempfiles ${file}z
+      testrun ${abs_top_builddir}/src/elfcompress -f -q -o ${file}z ${file}
+      testrun ${abs_top_builddir}/src/elfcompress -f -q --name='.s??tab' ${file}z
+
+      testrun $* ${file}z \
+	  || { echo "*** failure in $* ${file}z"; exit_status=1; }
+  done
+
+  # Only exit if something failed
+  if test $exit_status != 0; then exit $exit_status; fi
+}
+
 # Same as above, but redirects stdout to /dev/null
 testrun_on_self_quiet()
 {