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[kirkstone,15/35] oeqa/selftest/minidebuginfo: Create selftest for minidebuginfo

Message ID e7b0b23fd8357456ba41fe8d222f10313536d2d3.1668952942.git.steve@sakoman.com
State Accepted, archived
Commit e7b0b23fd8357456ba41fe8d222f10313536d2d3
Headers show
Series [kirkstone,01/35] dbus: fix CVE-2022-42010 Check brackets in signature nest correctly | expand

Commit Message

Steve Sakoman Nov. 20, 2022, 2:15 p.m. UTC 
From: Nathan Rossi <nathan.rossi@digi.com>

Add a new selftest to validate minidebuginfo support. This selftest
builds a complete target image with PACKAGE_MINIDEBUGINFO enabled. ELFs
included in the image are expected to have minidebuginfo included in the
resulting executables and shared libraries, the self test validates this
by unpacking the image and checking for the associated ".gnu_debugdata"
section on busybox and libc ELFs.

Signed-off-by: Nathan Rossi <nathan.rossi@digi.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
(cherry picked from commit 5063a31ad05b75ec6ac12158fe759e81fcdb1585)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
 meta/lib/oeqa/selftest/cases/minidebuginfo.py | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 meta/lib/oeqa/selftest/cases/minidebuginfo.py
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Patch

diff --git a/meta/lib/oeqa/selftest/cases/minidebuginfo.py b/meta/lib/oeqa/selftest/cases/minidebuginfo.py
new file mode 100644
index 0000000000..414dad64a3
--- /dev/null
+++ b/meta/lib/oeqa/selftest/cases/minidebuginfo.py
@@ -0,0 +1,49 @@ 
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+import os
+import subprocess
+import tempfile
+import shutil
+
+from oeqa.selftest.case import OESelftestTestCase
+from oeqa.utils.commands import bitbake, get_bb_var, runCmd
+
+
+class Minidebuginfo(OESelftestTestCase):
+    def test_minidebuginfo(self):
+        target_sys = get_bb_var("TARGET_SYS")
+        binutils = "binutils-cross-{}".format(get_bb_var("TARGET_ARCH"))
+
+        self.write_config("""
+PACKAGE_MINIDEBUGINFO = "1"
+IMAGE_FSTYPES = "tar.bz2"
+""")
+        bitbake("core-image-minimal {}:do_addto_recipe_sysroot".format(binutils))
+
+        deploy_dir = get_bb_var("DEPLOY_DIR_IMAGE")
+        native_sysroot = get_bb_var("RECIPE_SYSROOT_NATIVE", binutils)
+        readelf = get_bb_var("READELF", "core-image-minimal")
+
+        # add usr/bin/${TARGET_SYS} to PATH
+        env = os.environ.copy()
+        paths = [os.path.join(native_sysroot, "usr", "bin", target_sys)]
+        paths += env["PATH"].split(":")
+        env["PATH"] = ":".join(paths)
+
+        # confirm that executables and shared libraries contain an ELF section
+        # ".gnu_debugdata" which stores minidebuginfo.
+        with tempfile.TemporaryDirectory(prefix = "unpackfs-") as unpackedfs:
+            filename = os.path.join(deploy_dir, "core-image-minimal-{}.tar.bz2".format(self.td["MACHINE"]))
+            shutil.unpack_archive(filename, unpackedfs)
+
+            r = runCmd([readelf, "-W", "-S", os.path.join(unpackedfs, "bin", "busybox")],
+                    native_sysroot = native_sysroot, env = env)
+            self.assertIn(".gnu_debugdata", r.output)
+
+            r = runCmd([readelf, "-W", "-S", os.path.join(unpackedfs, "lib", "libc.so.6")],
+                    native_sysroot = native_sysroot, env = env)
+            self.assertIn(".gnu_debugdata", r.output)
+