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Improve handling of 'all' architecture recipes and their interaction with sstate

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The existing PACKAGE_ARCH = "all" mechanism of sharing packages is problematic
with sstate since there are a variety of variables which have target specific
values and the sstate package therefore correctly changes signature depending
on the MACHINE setting.

This patch creates a new "allarch" class which sets:

PACKAGE_ARCH = "all"

(as per the existing convention)

INHIBIT_DEFAULT_DEPS = "1"

(since its not target specific and therefore can't depend on the cross
compiler or target libc)

TARGET_ARCH = "all"
TARGET_OS = "linux"
TARGET_CC_ARCH = "none"

(since these variables shouldn't change between the different packages and
target compiler flags shouldn't be getting used)

PACKAGE_EXTRA_ARCHS = ""

(since we shouldn't be depending on any architecture specific package architectures)

Not all PACKAGE_ARCH = "all" recipes can use this class since some run configure
checks on the compiler. This means they have target specific components and therefore
the "all" classification is incorrect.

(From OE-Core rev: 26e5e5feb695864b11e47e24017e254c28f14494)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2011-05-18 00:03:02 +01:00
parent c3a7382c9a
commit 52295fa3de
13 changed files with 47 additions and 25 deletions
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15
meta/classes/allarch.bbclass Normal file
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@@ -0,0 +1,15 @@
#
# This class is used for architecture independent recipes/data files (usally scripts)
#
PACKAGE_ARCH = "all"
# No need for virtual/libc or a cross compiler
INHIBIT_DEFAULT_DEPS = "1"
# Set these to a common set of values, we shouldn't be using them other that for WORKDIR directory
# naming anyway
TARGET_ARCH = "all"
TARGET_OS = "linux"
TARGET_CC_ARCH = "none"
PACKAGE_EXTRA_ARCHS = ""