* this is mostly for backwards compatibility and to share binary feed
like it was before, but now without missing different -mtune in it
* if you want to build some package with -mtune add something like this
to your distro config
DEFAULTTUNE_qemuarm_pn-openssl = "arm926ejs"
DEFAULTTUNE_qemuarmx_pn-openssl = "xscale"
be aware that if you do this you should do it also for all packages
which depends on openssl because if you dont and you build e.g. dhcp,
then dhcp build for arm926ejs (even with DEFAULTTUNE armv5te) will
depend on openssl with arm926ejs, so dhcp in armv5te feed will be
rebuild after each MACHINE switch.
* cortexm3, cortexr4, iwmmx and ep9312 are using own DEFAULTTUNE because
they define also different -march
* shared feeds are
armv4t: arm920t, arm9tdmi
armv5te: arm926ejs, xscale
armv7a-neon: cortexa8, cortexa9
(From OE-Core rev: a11bdc36a1be18cc5aa14682b2a2c9ee83141f51)
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* without this tune-xscale and tune-arm926ejs were both creating
packages in armv5te feed, but each with different -mtune, with
OEBasicHash enabled it was causing each package to rebuild with new
-mtune after MACHINE switch, but that doesn't make sense with output
stored in the same armv5te feed
* this makes different feed for each -mtune, but more generic one to be
selected with DEFAULTTUNE
* tune-iwmmxt and tune-ep9312 were already using this, just move it
bellow AVAILTUNES and use ARMPKGARCH_tune-foo syntax
* tune-cortexr4 and tune-cortexm3 are using armv7r/armv7m as ARMPKGARCH
because there isn't another tune to use the same -march
(From OE-Core rev: cffda9a821a3b83a8529d643c567859e091c6846)
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
These changes revolve around the idea of tune features. These are represented by
'flag' strings that are included in the TUNE_FEATURES variable.
Any string included in TUNE_FEATURES should also add a TUNEVALID[<name>] entry so
we can know which flags are available in TUNE_FEATURES and have documentation about
what the flags do. We will add sanity code to error if flags are listed in
TUNE_FEATURES but are not documented in TUNEVALID.
A given tune configuration will want to define one or more predetermined sets of
_FEATURE flag lists. These are defined in the form TUNE_FEATURES_tune-<name>.
For defined tune configuation, <name> should be added to the AVAILTUNE list so that
we can determine what tune configurations are available. Flags cannot be used in this
case as with TUNEVALID since its useful to be able to build up tune lists from other
TUNE_FEATURES_tune-yyy options.
A given tune configuration may also define PACKAGE_EXTRA_ARCHS_tune-<name> and
BASE_LIB_tune-<name> to control the multilib location. All options can be overridden
by the distro or local user configuration.
(From OE-Core rev: 5f9d56bd64997b93ed7e46c117851002a0556654)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Since we're updating the tune file format, it makes sense to abstract
the compiler tune arguments at this point too. This means that should
these need to be overridden at any point, the original values can
still be obtained in a similar manner to the other TUNE* variables.
Whilst this isn't strictly necessary for any current need, its likely
good practise to standardise this behaviour.
(From OE-Core rev: 3a3c69a1bc3cf0b6f6a3b13d86c12ed21798d48e)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
There is currently consideradble confusion over how the tune files operate
and how these interact with the rest of the build system. This update/overhaul
changes things so the tune files are primarily resonsible for setting:
TUNE_ARCH - What was formerly set as TARGET_ARCH and is the value that
represents the architecture we're targetting.
TUNE_PKGARCH - The value that represents the tune confuration that this set
of tune parameters results in.
This allows the significant improvement that the core can now always determine
the target architecture value, even when TARGET_ARCH needs to be reset to
something different and likewise, there is one package architecture variable
the core can reference allowing simplification of the BASE_PACKAGE_ARCH, PACKAGE_ARCH
and FEED_ARCH variables.
(From OE-Core rev: a10de4cf8b424ee95c8e283e75d486be5b3b8eac)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
There is a problem with the current PACKAGE_EXTRA_ARCHS implementation
since its impossible to control which extra architectures sort higher
than TARGET_ARCH and which sort lower. In the x86 case for example,
TARGET_ARCH might be "i586", i486 should be lower than this and i686 should
be higher. There are also complications where its easy to inject duplicate
entries into the variable.
I tried various versions of this patch and concluded that it was simplest
just to force the tune files to include TARGET_ARCH in the list in the
right place if they're planning to customise it themselves. Other approaches
with appends and prepends just complicated the code for no good reason.
The TARGET_ARCH definitions should also move to the tune files but I'll
leave this for a separate patch.
(From OE-Core rev: d492ebf8b1801da99c679f465be98ce54fd3061a)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This gets us closer to making including tune-<arch>.inc "just work".
Moving the TARGET_ARCH definitions is something for a follup patch.
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Martin Jansa
Richard Purdie
Koen Kooi
Richard Purdie
Marcin Juszkiewicz