howto find which recipe provides a RPM (or DEB or IPK) package?

(in this question I talk RPM but the same issue concerns DEB and IPK I suppose)

How can I find which recipe provides a given RPM package? Is there a tool for that? With grep and looking at the source code of the recipes, I can find out, but it is tedious.

Moreover the package name in yocto is not always the same as the RPM package name. Is there a tool for showing the relationship?

Examples:

which recipe provides the RPM package libgmp10? (and what is the PACKAGE name in yocto)
same question for the RPM package libmount1?

Solution

If those packages are already built, you can use the oe-pkgdata-util tool to find which recipe that provides a certain package. It's agnostic to which package format you're using, so it works for rpm/deb/ipk.

In the example below I want to find out which recipe that provides the package called libmount1, and the command shows that the recipe name is util-linux

$ oe-pkgdata-util lookup-recipe libmount1
util-linux

And to find the recipe-space package name:

$ oe-pkgdata-util lookup-pkg -r libmount1
util-linux-libmount