This allows ccache usage for recipes which inherit cmake.bbclass.
Since cmake v3.4, it can be enabled using some "-D" options.
Here below are some metrics while using it for webkitgtk recipe.
(machine is a 4x core i7 @ 3.4GHz)
$ bitbake -c fetchall webkitgtk
$ time bitbake webkitgtk
<snip>
real 56m25.191s
user 359m32.003s
sys 34m49.356s
$ bitbake -c clean webkitgtk
$ bitbake -c cleansstate webkitgtk
$ time bitbake webkitgtk
<snip>
real 25m19.298s
user 17m57.861s
sys 6m20.157s
Signed-off-by: Yannick Gicquel <yannick.gicq...@iot.bzh>
---
meta/classes/cmake.bbclass | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass
index 9e74599..737a4e0 100644
--- a/meta/classes/cmake.bbclass
+++ b/meta/classes/cmake.bbclass
@@ -4,12 +4,9 @@ OECMAKE_SOURCEPATH ?= "${S}"
DEPENDS_prepend = "cmake-native "
B = "${WORKDIR}/build"
-# We need to unset CCACHE otherwise cmake gets too confused
-CCACHE = ""
-
# C/C++ Compiler (without cpu arch/tune arguments)
-OECMAKE_C_COMPILER ?= "`echo ${CC} | sed 's/^\([^ ]*\).*/\1/'`"
-OECMAKE_CXX_COMPILER ?= "`echo ${CXX} | sed 's/^\([^ ]*\).*/\1/'`"
+OECMAKE_C_COMPILER ?= "${@'${CC}'.replace('${CCACHE}','',1).split(' ')[0]}"
+OECMAKE_CXX_COMPILER ?= "${@'${CXX}'.replace('${CCACHE}','',1).split(' ')[0]}"
OECMAKE_AR ?= "${AR}"
# Compiler flags
@@ -108,9 +105,16 @@ cmake_do_configure() {
OECMAKE_SITEFILE=""
fi
+ if [ -n "${CCACHE}" ]; then
+ OECMAKE_CCACHE="-DCMAKE_C_COMPILER_LAUNCHER=${CCACHE}
-DCMAKE_CXX_COMPILER_LAUNCHER=${CCACHE}"
+ else
+ OECMAKE_CCACHE=""
+ fi
+
cmake \
${OECMAKE_SITEFILE} \
${OECMAKE_SOURCEPATH} \
+ ${OECMAKE_CCACHE} \
-DCMAKE_INSTALL_PREFIX:PATH=${prefix} \
-DCMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir'),
d.getVar('prefix'))} \
-DCMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir'),
d.getVar('prefix'))} \
--
1.9.1
--
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