Hmm, I just noticed that this flag wasn't omitted accidentally at all,
but because clang doesn't support it.
Please ignore this patch, will try to come up with some conditional
patch or something like that.
On 11/19/25 11:19, Gyorgy Sarvari wrote:
> When the debug-prefix-map and macro-prefix-map compiler flags
> were change to file-prefix-map[1] the -fcanon-prefix-map
> flag was removed, most likely accidentally.
>
> Due to this the file paths were not canonicalized before
> substituting them, so they did not always match the corresponding keys.
>
> E.g. relative pathes were not converted to absolute ones:
> ../../sources/foo.cpp doesn't match ${S}/foo.cpp, and due to
> this some debug sources were missed.
>
> This patch adds back the -fcanon-prefix-map flag.
>
> [1]:
> https://git.openembedded.org/openembedded-core/commit/?id=ff73fa7ef7666a6dbe34f15515bc3ab6e574c5b0
>
> Cc: Khem Raj <[email protected]>
> Signed-off-by: Gyorgy Sarvari <[email protected]>
> ---
> meta/conf/bitbake.conf | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
> index 52ceb76bbb..f789b8e326 100644
> --- a/meta/conf/bitbake.conf
> +++ b/meta/conf/bitbake.conf
> @@ -650,7 +650,7 @@ EXTRA_OEMAKE:prepend:task-install = "${PARALLEL_MAKEINST}
> "
> ##################################################################
> TARGET_DBGSRC_DIR ?= "/usr/src/debug/${PN}/${PV}"
> # Beware: applied last to first
> -DEBUG_PREFIX_MAP ?= "\
> +DEBUG_PREFIX_MAP ?= "-fcanon-prefix-map \
> -ffile-prefix-map=${S}=${TARGET_DBGSRC_DIR} \
> -ffile-prefix-map=${B}=${TARGET_DBGSRC_DIR} \
> -ffile-prefix-map=${STAGING_DIR_HOST}= \
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