From: Simon Kagstrom <simon.kagstrom@netinsight.net>
To: olivier.matz@6wind.com, dev@dpdk.org
Subject: [dpdk-dev] [PATCH] mk: pass EXTRA_CFLAGS to AUTO_CPUFLAGS to enable local modifications
Date: Wed, 18 Nov 2015 08:53:50 +0100 [thread overview]
Message-ID: <20151118085350.1247f3d5@miho> (raw)
We have encountered a CPU where the AES-NI instruction set is disabled
due to export restrictions. Since the build machine and target machine
is different, using -native configs doesn't work, and on this CPU, the
application refuses to run due to the AES CPU flags being amiss.
The patch passes EXTRA_CFLAGS to the figure-out-cpu-flags helper,
which allows us to add -mno-aes to the compile flags and resolve this
problem.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
---
mk/rte.cpuflags.mk | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mk/rte.cpuflags.mk b/mk/rte.cpuflags.mk
index f595cd0..17da810 100644
--- a/mk/rte.cpuflags.mk
+++ b/mk/rte.cpuflags.mk
@@ -33,7 +33,7 @@
# used to set the RTE_CPUFLAG_* environment variables giving details
# of what instruction sets the target cpu supports.
-AUTO_CPUFLAGS := $(shell $(CC) $(MACHINE_CFLAGS) -dM -E - < /dev/null)
+AUTO_CPUFLAGS := $(shell $(CC) $(EXTRA_CFLAGS) $(MACHINE_CFLAGS) -dM -E - < /dev/null)
# adding flags to CPUFLAGS
--
1.9.1
next reply other threads:[~2015-11-18 7:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-18 7:53 Simon Kagstrom [this message]
2015-11-20 15:33 ` Olivier MATZ
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