[OE-core] some variables not expanded corectly before BUILDCFG_VARS are shown

[Martin Jansa]

Hi,

when testing tune files I've noticed that TUNE_FEATURES are always shown
the same, even when build uses different value set from local.conf:

I've added DEFAULTTUNE to BUILDCFG_VARS to be sure:
BUILDCFG_VARS = "BB_VERSION BUILD_SYS NATIVELSBSTRING TARGET_SYS MACHINE
DISTRO DISTRO_VERSION TUNE_FEATURES DEFAULTTUNE TARGET_FPU"

I was changing DEFAULTTUNE with machine override in local.conf or .inc
file required from local.conf.

$ grep DEFAULTTUNE conf/local.conf 
DEFAULTTUNE_om-gta02 = "arm920t"
DEFAULTTUNE_nokia900 = "cortexa8t-neon"
DEFAULTTUNE_tuna = "cortexa9t-neon"

But the output at the beginning of build log was still the same. 
1st is without any change to DEFAULTTUNE (so correctly armv4t and armv7a-neon)
2nd is with DEFAULTTUNE set in conf/local.conf with machine override
3rd is with default DEFAULTTUNE changed in tune-* file

2nd and 3rd correctly uses cortexa9t-neon/cortexa8t-neon/arm920t tune, but only 3rd shows it:
nokia900/20121130041857.log:DEFAULTTUNE       = "armv7a-neon"
nokia900/20121130041857.log:TUNE_FEATURES     = "armv7a vfp neon"
nokia900/20121130101904.log:DEFAULTTUNE       = "armv7a-neon"
nokia900/20121130101904.log:TUNE_FEATURES     = "armv7a vfp neon"
nokia900/20121130135815.log:DEFAULTTUNE       = "cortexa8t-neon"
nokia900/20121130135815.log:TUNE_FEATURES     = "armv7a vfp thumb neon cortexa8"
om-gta02/20121130042112.log:DEFAULTTUNE       = "armv4t"
om-gta02/20121130042112.log:TUNE_FEATURES     = "armv4 thumb"
om-gta02/20121130102310.log:DEFAULTTUNE       = "armv4t"
om-gta02/20121130102310.log:TUNE_FEATURES     = "armv4 thumb"
om-gta02/20121130140126.log:DEFAULTTUNE       = "arm920t"
om-gta02/20121130140126.log:TUNE_FEATURES     = "armv4 thumb arm920t"
tuna/20121130041547.log:DEFAULTTUNE       = "armv7a-neon"
tuna/20121130041547.log:TUNE_FEATURES     = "armv7a vfp neon"
tuna/20121130101500.log:DEFAULTTUNE       = "armv7a-neon"
tuna/20121130101500.log:TUNE_FEATURES     = "armv7a vfp neon"
tuna/20121130135506.log:DEFAULTTUNE       = "cortexa8t-neon"
tuna/20121130135506.log:TUNE_FEATURES     = "armv7a vfp thumb neon cortexa8"

What's even more strange is that "thumb" override get applied in different order in 3rd build:
$ bitbake-diffsigs  tmp-eglibc/sstate-diff/13542[78]*/nokia900/cor*/libmad*/*do_con*
basehash changed from 8ad5d9c1803fed09a89e626c07581cb1 to 7e316bb3c389fe3cda6652ac1476a883
Variable EXTRA_OECONF value changed from 
-enable-speed --enable-shared --enable-fpm=arm --disable-aso --enable-fpm=default 
to 
-enable-speed --enable-shared --disable-aso --enable-fpm=default --enable-fpm=arm
# because libmad has:
# The ASO's don't take any account of thumb...
EXTRA_OECONF_append_thumb = " --disable-aso --enable-fpm=default"
EXTRA_OECONF_append_arm = " --enable-fpm=arm"
But both 2srd and 3rd got --mtune=cortexa8.

buildhistory.bbclass seems to read the same TUNE_PKGARCH (armv4t), 
all other builds are in arm920tt-oe-linux-gnueabi:
$ find ~/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers/1.0-r0
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers/1.0-r0/bblayers-1.0
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers/1.0-r0/temp
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers/1.0-r0/temp/run.buildhistory_commit.4401
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers/1.0-r0/temp/run.buildhistory_commit.6566
/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/bblayers/1.0-r0/temp/run.buildhistory_commit.11843

Any idea what is causing that?

Cheers,

-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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