From: Emil Velikov <emil.l.velikov@gmail.com>
Date: Sun, 8 Feb 2026 16:04:38 +0000 (+0000)
Subject: Add and install valgrind suppression file
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21acc57c72777b05bc46b3552fdfb14614453e9f;p=thirdparty%2Fkmod.git

Add and install valgrind suppression file

We're leaking some dlopen handles, by design. It is cleaned up when the
process is closed and there is no reason to be concerned/alarmed.

To indicate that, let's ship a valgrind suppression file.

Admittedly these are not 100% enough since depending on the c runtime
and/or version it can leak some global state, which gets caught.

The newer the glibc version, the more likely it is to exbibit such
behaviour.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://github.com/kmod-project/kmod/pull/420
Signed-off-by: Lucas De Marchi <demarchi@kernel.org>
---

diff --git a/libkmod/valgrind/kmod.supp b/libkmod/valgrind/kmod.supp
new file mode 100644
index 00000000..54b81b8a
--- /dev/null
+++ b/libkmod/valgrind/kmod.supp
@@ -0,0 +1,7 @@
+{
+   ignore-leaked-dlopen-handles
+   Memcheck:Leak
+   ...
+   fun:dlopen@@GLIBC_2.34
+}
+
diff --git a/meson.build b/meson.build
index c2bf5adf..d702a98c 100644
--- a/meson.build
+++ b/meson.build
@@ -407,6 +407,11 @@ pkg.generate(
   libraries_private : cdeps,
 )
 
+install_data(
+  files('libkmod/valgrind/kmod.supp'),
+  install_dir : datadir / 'kmod/valgrind'
+)
+
 if get_option('tools')
   libkmod_internal = static_library(
     'kmod-internal',