When we use the statistics output to generate a CVE/CPE customer
report showing whether a product is affected by CVEs, we are primarily
interested in whether they are relevant to the target
system. Currently we cannot see if the package is configured for the
build (infra==host) and/or the target system (infra==target).
Therefore this commit extends the pkg-stats script to leverage the
information available in "make show-info" output to tweak the list of
package infrastructures for each package. Thanks to this commit, the
script now has a more consistent behavior:
* When pkg-stats is run without -c, i.e without a defined Buildroot
configuration, it continues to operate as it did, i.e it lists all
package infrastructures supported by the package (such as autotools
host+target, or kconfig target, etc.)
* When pkg-stats is run with -c, i.e with a defined Buildroot
configuration which defines the list of packages that should be
considered, then for each package it now lists only the package
infrastructures used by the package in that current
configuration. For example if you have a package with a host and
target variant, but only the host variant is used in your
configuration, now the pkg-stats output will only say that the host
variant of this package is used;
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
[Thomas: pretty much rework the entire implementation and how the
result is presented.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
28973f28ac