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 c40d0e828d7476c96b416da44c01ce330a7a5ba7..e1a49dca14f460fbfd7a0546ce1a40a3d2a173bc 100755 (executable)
--- a/scripts/dkms.mkconf
+++ b/scripts/dkms.mkconf
@@ -58,6 +58,10 @@ PRE_BUILD="configure
       then
         echo --enable-debug
       fi
+      if [[ \${ZFS_DKMS_ENABLE_DEBUGINFO,,} == @(y|yes) ]]
+      then
+        echo --enable-debuginfo
+      fi
     }
   )
 "