From: Angelo Ribeiro <angelo.ribe...@criticaltechworks.com>
Native recipes are not able to use ccache currently, due to a circular
dependency between ccache-native and cmake-native.
This affects also other native recipes, but not all, imposing a
limitation in build time optimizations.
The introduction of CCACHE_NATIVE_RECIPES_ALLOWED allows the user to specify
which native recipes should use ccache, keeping it disable by default for all
native recipes.
Signed-off-by: Angelo Ribeiro <angelo.ribe...@criticaltechworks.com>
---
meta/classes/ccache.bbclass | 11 ++++++++---
meta/conf/documentation.conf | 1 +
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/meta/classes/ccache.bbclass b/meta/classes/ccache.bbclass
index 4532894c57..15eab11a0f 100644
--- a/meta/classes/ccache.bbclass
+++ b/meta/classes/ccache.bbclass
@@ -22,6 +22,11 @@
# be shared between different builds.
CCACHE_TOP_DIR ?= "${TMPDIR}/ccache"
+# ccache-native and cmake-native have a circular dependency
+# that affects other native recipes, but not all.
+# Allows to use ccache in specified native recipes.
+CCACHE_NATIVE_RECIPES_ALLOWED ?= ""
+
# ccahe removes CCACHE_BASEDIR from file path, so that hashes will be the same
# in different builds.
export CCACHE_BASEDIR ?= "${TMPDIR}"
@@ -48,9 +53,9 @@ python() {
Enable ccache for the recipe
"""
pn = d.getVar('PN')
- # quilt-native doesn't need ccache since no c files
- if not (bb.data.inherits_class("native", d) or
- bb.utils.to_boolean(d.getVar('CCACHE_DISABLE'))):
+ if (pn in d.getVar('CCACHE_NATIVE_RECIPES_ALLOWED') or
+ not (bb.data.inherits_class("native", d) or
+ bb.utils.to_boolean(d.getVar('CCACHE_DISABLE')))):
d.appendVar('DEPENDS', ' ccache-native')
d.setVar('CCACHE', 'ccache ')
}
diff --git a/meta/conf/documentation.conf b/meta/conf/documentation.conf
index ab2addb321..362635fc9e 100644
--- a/meta/conf/documentation.conf
+++ b/meta/conf/documentation.conf
@@ -106,6 +106,7 @@ BUSYBOX_SPLIT_SUID[doc] = "For the BusyBox recipe,
specifies whether to split th
#C
CACHE[doc] = "The directory holding the cache of the metadata."
+CCACHE_NATIVE_RECIPES_ALLOWED[doc] = "A list of native recipes to use Ccache,
this variable is useful to bypass a circular dependency between ccache-native
and cmake-native that inhibits to use Ccache in other native recipes."
CFLAGS[doc] = "Flags passed to the C compiler for the target system. This
variable evaluates to the same as TARGET_CFLAGS."
CLASSOVERRIDE[doc] = "An internal variable specifying the special class
override that should currently apply (e.g. "class-target", "class-native", and
so forth)."
CLEANBROKEN[doc] = "Specifies if 'make clean' does not work for a recipe (and
therefore the build system should not try to use it during do_configure)"
--
2.34.1
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