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mk: influence CPU flags with user input

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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>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
This commit is contained in:
Simon Kagstrom 2015-11-24 08:50:01 +01:00 committed by Thomas Monjalon
parent ebfd02be8a
commit 9aa2053c6e
1 changed files with 1 additions and 1 deletions
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mk/rte.cpuflags.mk
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@ -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) $(MACHINE_CFLAGS) $(EXTRA_CFLAGS) -dM -E - < /dev/null)
# adding flags to CPUFLAGS