From 2fd2baff9f001fe01e1ec1e3028624d24509bf18 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Tue, 22 Jul 2025 18:44:24 +0200
Subject: [PATCH] qemu: add valgrind support (disabled by default)

Keeping it disabled by default because it's a debug feature, but it's
a useful thing to provide as an option.
---
 pkgs/applications/virtualization/qemu/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/virtualization/qemu/default.nix b/pkgs/applications/virtualization/qemu/default.nix
index e37809a8e6f5..dda07cb984dc 100644
--- a/pkgs/applications/virtualization/qemu/default.nix
+++ b/pkgs/applications/virtualization/qemu/default.nix
@@ -94,6 +94,8 @@
   canokey-qemu,
   capstoneSupport ? !minimal,
   capstone,
+  valgrindSupport ? false,
+  valgrind-light,
   pluginsSupport ? !stdenv.hostPlatform.isStatic,
   enableDocs ? !minimal || toolsOnly,
   enableTools ? !minimal || toolsOnly,
@@ -248,7 +250,8 @@ stdenv.mkDerivation (finalAttrs: {
   ++ lib.optionals smbdSupport [ samba ]
   ++ lib.optionals uringSupport [ liburing ]
   ++ lib.optionals canokeySupport [ canokey-qemu ]
-  ++ lib.optionals capstoneSupport [ capstone ];
+  ++ lib.optionals capstoneSupport [ capstone ]
+  ++ lib.optionals valgrindSupport [ valgrind-light ];
 
   dontUseMesonConfigure = true; # meson's configurePhase isn't compatible with qemu build
   dontAddStaticConfigureFlags = true;