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ccache: move environment variables to the configuration file

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Move some environment variables to the configuration file, so there's
less happening in the class.

Max_size was removed so that the per-recipe caches don't grown without
limit. The default cache is 5GB.

(From OE-Core rev: 8c1c38a6b3073d2dd34514f5a90805c12c0f42dd)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ross Burton 2025-07-24 17:20:53 +01:00 committed by Richard Purdie
parent 1f9f818787
commit ddb29ce831
2 changed files with 9 additions and 12 deletions
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10
meta/classes/ccache.bbclass
View File

@ -44,16 +44,6 @@ export CCACHE_CONFIGPATH ?= "${COREBASE}/meta/conf/ccache.conf"
export CCACHE_DIR ?= "${CCACHE_TOP_DIR}/${MULTIMACH_TARGET_SYS}/${PN}"
# Fixed errors:
# ccache: error: Failed to create directory /run/user/0/ccache-tmp: Permission denied
export CCACHE_TEMPDIR ?= "${CCACHE_DIR}/tmp"
# We need to stop ccache considering the current directory or the
# debug-prefix-map target directory to be significant when calculating
# its hash. Without this the cache would be invalidated every time
# ${PV} or ${PR} change.
export CCACHE_NOHASHDIR ?= "1"
python() {
"""
Enable ccache for the recipe

11
meta/conf/ccache.conf
View File

@ -1,7 +1,14 @@
max_size = 0
# Avoid spurious cache misses caused by recipe sysroot creation: Creating a
# recipe sysroot hardlinks all dependent files into place. Hardlinking updates
# the file's ctime which in turn interferes with ccache's include_file_ctime
# check.
sloppiness = include_file_ctime
# We need to stop ccache considering the current directory or the
# debug-prefix-map target directory to be significant when calculating
# its hash. Without this the cache would be invalidated every time
# ${PV} or ${PR} change.
hash_dir = false
# If ccache runs under pseudo it will try to create files in /run/user/0/ccache-tmp
temporary_dir = $CCACHE_DIR/tmp