I don't mind emotional men and don't view them as feminine. All sorts of people (regardless of gender) cope differently with emotions. I think culture has an impact on that as well, some are more okay with sharing feelings and showing them, regardless of gender. Some cultures do not repress them or view them as "unmanly".
I feel it is unhealthy to repress because it's "feminine" and saying things like "man up". I think it's detrimental. Let people deal with how they feel in their own terms without looking down on them. I don't advocate to enforce behaviours either way, if a boy feels like crying and sharing their emotions, then he should. If that's not how he deals with his feelings, then let him deal with it in his own way (don't force him to share). Same thing with girls. It's not an either/or type of thing, we're individuals.