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authorDavid Howells <dhowells@redhat.com>2013-08-30 17:13:15 +0100
committerDavid Howells <dhowells@redhat.com>2013-09-25 17:17:01 +0100
commit0fbd39cf7ffe3b6a787b66b672d21b84e4675352 (patch)
treee7cbb7e4dfd5d344509d60208a27a1ecaae8a150 /kernel
parentf0e6d220a7cd93afa0260ac5e7849f00b05e035a (diff)
downloadblackbird-op-linux-0fbd39cf7ffe3b6a787b66b672d21b84e4675352.tar.gz
blackbird-op-linux-0fbd39cf7ffe3b6a787b66b672d21b84e4675352.zip
KEYS: Have make canonicalise the paths of the X.509 certs better to deduplicate
Have make canonicalise the paths of the X.509 certificates before we sort them as this allows $(sort) to better remove duplicates. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/Makefile12
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/Makefile b/kernel/Makefile
index c34e5f993a21..2c24195249d5 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -144,13 +144,19 @@ $(obj)/timeconst.h: $(obj)/hz.bc $(src)/timeconst.bc FORCE
ifeq ($(CONFIG_MODULE_SIG),y)
###############################################################################
#
-# Roll all the X.509 certificates that we can find together and pull
-# them into the kernel.
+# Roll all the X.509 certificates that we can find together and pull them into
+# the kernel.
+#
+# We look in the source root and the build root for all files whose name ends
+# in ".x509". Unfortunately, this will generate duplicate filenames, so we
+# have make canonicalise the pathnames and then sort them to discard the
+# duplicates.
#
###############################################################################
X509_CERTIFICATES-y := $(wildcard *.x509) $(wildcard $(srctree)/*.x509)
X509_CERTIFICATES-$(CONFIG_MODULE_SIG) += signing_key.x509
-X509_CERTIFICATES := $(sort $(X509_CERTIFICATES-y))
+X509_CERTIFICATES := $(sort $(foreach CERT,$(X509_CERTIFICATES-y), \
+ $(or $(realpath $(CERT)),$(CERT))))
ifeq ($(X509_CERTIFICATES),)
$(warning *** No X.509 certificates found ***)
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