glibc: exclude child recipes from CVE scanning

As glibc will be scanned for CVEs, we don't need to scan glibc-locale,
glibc-mtrace, and glibc-scripts which are all separate recipes for technical
reasons.

Exclude the recipes by setting CVE_PRODUCT in the recipe, instead of using the
global whitelist.

(From OE-Core rev: 1f9a963b9ff7ebe052ba54b9fcbdf7d09478dd17)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/cve-check.bbclass

@@ -37,9 +37,7 @@ CVE_CHECK_COPY_FILES ??= "1"
 CVE_CHECK_CREATE_MANIFEST ??= "1"
 
 # Whitelist for packages (PN)
-CVE_CHECK_PN_WHITELIST = "\
-    glibc-locale \
-"
+CVE_CHECK_PN_WHITELIST ?= ""
 
 # Whitelist for CVE and version of package. If a CVE is found then the PV is
 # compared with the version list, and if found the CVE is considered

meta/recipes-core/glibc/glibc-locale.inc

@@ -98,3 +98,6 @@ do_install() {
 inherit libc-package
 
 BBCLASSEXTEND = "nativesdk"
+
+# Don't scan for CVEs as glibc will be scanned
+CVE_PRODUCT = ""

meta/recipes-core/glibc/glibc-mtrace.inc

@@ -11,3 +11,6 @@ do_install() {
 	install -d -m 0755 ${D}${bindir}
 	install -m 0755 ${SRC}/mtrace ${D}${bindir}/
 }
+
+# Don't scan for CVEs as glibc will be scanned
+CVE_PRODUCT = ""

meta/recipes-core/glibc/glibc-scripts.inc

@@ -18,3 +18,6 @@ do_install() {
 # sotruss script requires sotruss-lib.so (given by libsotruss package), 
 # to produce trace of the library calls.
 RDEPENDS_${PN} += "libsotruss"
+
+# Don't scan for CVEs as glibc will be scanned
+CVE_PRODUCT = ""