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config/arm: check SVE CPU flag

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If compiled with SVE feature (e.g. "-march=armv8.2-a+sve'), the binary
could not run on non-SVE platform else it will encounter illegal
instruction [1].

This patch fixes it by adding 'RTE_CPUFLAG_SVE' to compile_time_cpuflags,
so that rte_cpu_is_supported() will print meaningful log under above
situation.

[1] http://mails.dpdk.org/archives/dev/2021-May/209124.html

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
This commit is contained in:
Chengwen Feng 2021-05-21 11:33:54 +08:00 committed by Thomas Monjalon
parent cfdaa678b3
commit 3c1199c2db
1 changed files with 4 additions and 0 deletions
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4
config/arm/meson.build
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@ -480,6 +480,10 @@ if (cc.get_define('__ARM_NEON', args: machine_args) != '' or
compile_time_cpuflags += ['RTE_CPUFLAG_NEON']
endif
if cc.get_define('__ARM_FEATURE_SVE', args: machine_args) != ''
compile_time_cpuflags += ['RTE_CPUFLAG_SVE']
endif
if cc.get_define('__ARM_FEATURE_CRC32', args: machine_args) != ''
compile_time_cpuflags += ['RTE_CPUFLAG_CRC32']
endif