bitbake.conf: Add -fcanon-prefix-map to DEBUG_PREFIX_MAP

This should help canonicalize the relative paths and symlinks
during cross compile, -fcanon-prefix-map is newly added in gcc-13+ [1]

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108464#c8
(From OE-Core rev: ba778e43576aaab212751ccc13270fd4c504ba1f)

(From OE-Core rev: abe97fa74b10c2c71d79bc3573d4edb509b111f5)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index ebfc930a7c..b527dc564e 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -648,7 +648,8 @@ EXTRA_OEMAKE:prepend:task-install = "${PARALLEL_MAKEINST} "
 # Optimization flags.
 ##################################################################
 # Beware: applied last to first
-DEBUG_PREFIX_MAP ?= "-fmacro-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
+DEBUG_PREFIX_MAP ?= "-fcanon-prefix-map \
+ -fmacro-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
  -fdebug-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
  -fmacro-prefix-map=${B}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
  -fdebug-prefix-map=${B}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \