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package/collectd: Specify FP layout based on endianness

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Big-endian CPUs store floating point as big endian (at lest majority
of them do), so, in order for 'network' plugin to work correctly (and
potentially any user of htond() in collectd's codebase),
--with-fp-layout=endianflip as opposed to --with-fp-layout=nothing
needs to be specified during configuration phase.

Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Andrey Smirnov 2017-11-07 12:04:42 -08:00 committed by Thomas Petazzoni
parent 636f4d81ff
commit bdd8475b90
1 changed files with 15 additions and 1 deletions
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16
package/collectd/collectd.mk
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@ -24,9 +24,23 @@ COLLECTD_PLUGINS_DISABLE = \
COLLECTD_CONF_ENV += LIBS="-lm"
#
# NOTE: There's also a third availible setting "intswap", which might
# be needed on some old ARM hardware (see [2]), but is not being
# accounted for as per discussion [1]
#
# [1] http://lists.busybox.net/pipermail/buildroot/2017-November/206100.html
# [2] http://lists.busybox.net/pipermail/buildroot/2017-November/206251.html
#
ifeq ($(BR2_ENDIAN),"BIG")
COLLECTD_FP_LAYOUT=endianflip
else
COLLECTD_FP_LAYOUT=nothing
endif
COLLECTD_CONF_OPTS += \
--with-nan-emulation \
--with-fp-layout=nothing \
--with-fp-layout=$(COLLECTD_FP_LAYOUT) \
--with-perl-bindings=no \
$(foreach p, $(COLLECTD_PLUGINS_DISABLE), --disable-$(p)) \
$(if $(BR2_PACKAGE_COLLECTD_AGGREGATION),--enable-aggregation,--disable-aggregation) \