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Removing the ccache directory as part of do_clean is unnecessarily
conservative and defeats many of the benefits of ccache.
The original justification for this behaviour was to avoid confusion
in the corner case that the ccache directory becomes corrupted.
However the standard approach for dealing with such highly unlikely
corner cases (ie manually removing tmp) would also recover from
corruption of the ccache directories, without the negative impact of
defeating ccache during normal development.
(From OE-Core rev: 6ae6680ad8d51eff756dcb6500fca2530e3e3e73)
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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These have been deprecated for a long time, convert the remaining
references to the correct modules and prepare for removal of the
compatibility support from bitbake.
(From OE-Core rev: 6a39835af2b2b3c7797fe05479341d71a3f3aaf6)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Use weaker assignment for CCACHE_DIR to allow users to override it
if desired.
(From OE-Core rev: 61e864e2d020c820cf90807b48babee3b24f9446)
Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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This ensures a rebuild does really build from scratch when ccache is in use.
[YOCTO #2696]
(From OE-Core rev: ddf52d0161096b089fad8f3ace69b6515d7b7226)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The autogen-native built error on FC17:
ccache: failed to create /dev/null/.ccache
This is because the default gcc command of FC17 is a symlink to ccache,
so the ccache will always be used regardless to the setting of CCACHE,
ccache uses $HOME/.ccache as the CACHE_DIR by default, but autogen set
HOME=/dev/null, so the error happens.
Disable ccache explicitly if it is not enabled would fix the problem,
otherwise it would always use ccache regardless to the setting of CCACHE
on Fedora 17.
The ccache 3.1.7 has a bug, it would always create $CCCHE_DIR/.ccache
even CCACHE_DISABLE=1.
Unset CCACHE_DISABLE in ccache.bbclass, since ccache only checks whether
there is a CCACHE_DISABLE in the environment or not, it doesn't care about
its value, so we need unset it explicitly when enable ccache.
[YOCTO #2554]
(From OE-Core rev: dd2bab9b6a973d8086dfb6282e781fd79d30b05a)
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Currently, ccache is used if it is present. When building from scratch it gives
no performance improvement and creates a ton of empty directories even when its
not in use.
This change moves ccache support to a bbclass file which the user can choose to
enable. This should make builds more determinstic and make it easier/clearer
to the end user when its being used and when it is not.
(From OE-Core rev: 2acf8da4f13c175ea818b9514677b7059de1e3e2)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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