[OE-core] [PATCH V3 00/11] ccache.bbclass: Refactor it to make it more reliable

[Robert Yang]

* V3
  - Make cache files can be shared between different build dirs
  - Add task do_cleanccache
  - Make cmake work with ccache
  - Upgrade ccache to 3.5, this version has a debug mode, which is useful for
    figuring out why a cache file is not used.

* V2
  - Fix comments from Martin Jansa and Martin Hundebøll.
  - Fix RP's comments:
    1) Add comments for ccache related code in base.bbclass
    2) Remove all ccache-native's dependencies so that all recipes can depend on
       and use it.
  - Update test_ccache_tool in oeqa

* V1
  Initial version

The following changes since commit 20aea61385e1a53ac245353899277ba20104ed2f:

  gcc: Drop 7.3 since 8.2 is working fine for us (2018-12-15 17:10:44 +0000)

are available in the git repository at:

  git://git.openembedded.org/openembedded-core-contrib rbt/ccache
  http://cgit.openembedded.org/openembedded-core-contrib/log/?h=rbt/ccache

Robert Yang (11):
  ccache-native: Remove dependencies
  ccache: 3.4.2 -> 3.5
  ccache.bbclass: Refactor it to make it more reliable
  ccache.bbclass: Make it can be shared between different builds
  ccache.bbclass: Add task do_cleanccache
  ccache.bbclass: Set CCACHE_CONFIGPATH to fix race issues
  bitbake.conf: Enable -fdebug-prefix-map for nativesdk
  goarch.bbclass: Set CCACHE_DISABLE
  cmake.bbclass: Make it work with ccache
  apr/openssl10: Enable ccache for them
  oeqa/selftest/cases: Update test_ccache_tool

 meta/classes/ccache.bbclass                        | 63 ++++++++++++++++++++--
 meta/classes/cmake.bbclass                         | 21 +++++---
 meta/classes/goarch.bbclass                        |  4 ++
 meta/conf/bitbake.conf                             |  8 +--
 meta/conf/ccache.conf                              |  2 +
 meta/conf/layer.conf                               |  1 -
 meta/lib/oe/utils.py                               |  3 ++
 meta/lib/oeqa/selftest/cases/buildoptions.py       | 10 ++--
 .../openssl/openssl10_1.0.2q.bb                    |  3 --
 meta/recipes-devtools/ccache/ccache.inc            | 13 ++++-
 meta/recipes-devtools/ccache/ccache_3.4.2.bb       | 11 ----
 meta/recipes-devtools/ccache/ccache_3.5.bb         | 11 ++++
 meta/recipes-graphics/piglit/piglit_git.bb         |  3 ++
 meta/recipes-graphics/vulkan/vulkan_1.1.73.0.bb    |  3 ++
 meta/recipes-sato/webkit/webkitgtk_2.22.4.bb       |  3 ++
 meta/recipes-support/apr/apr_1.6.5.bb              |  5 --
 16 files changed, 122 insertions(+), 42 deletions(-)
 create mode 100644 meta/conf/ccache.conf
 delete mode 100644 meta/recipes-devtools/ccache/ccache_3.4.2.bb
 create mode 100644 meta/recipes-devtools/ccache/ccache_3.5.bb

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2.7.4