dkms: Enable debuginfo option to be set with zfs sysconfig file

On some Linux distributions, the kernel module build will not
default to building with debuginfo symbols, which can make it
difficult for debugging and testing.

For this case, we provide a flag to override the build to force
debuginfo to be produced for the kernel module build.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Neal Gompa <ngompa@datto.com>
Co-authored-by: Simon Watson <swatson@datto.com>
Signed-off-by: Neal Gompa <ngompa@datto.com>
Signed-off-by: Simon Watson <swatson@datto.com>
Closes #8304

diff --git a/scripts/dkms.mkconf b/scripts/dkms.mkconf
index 88c289383e676a666e44d3d3cd034798665d37ba..616b7991b03f888ac7c8df16a69793df55d448c1 100755 (executable)
--- a/scripts/dkms.mkconf
+++ b/scripts/dkms.mkconf
@@ -65,6 +65,10 @@ PRE_BUILD="configure
       then
         echo --enable-debug-dmu-tx
       fi
+      if [[ \${ZFS_DKMS_ENABLE_DEBUGINFO,,} == @(y|yes) ]]
+      then
+        echo --enable-debuginfo
+      fi
     }
   )
 "