On 2 Dec 2025, at 05:13, Yu, Mingli via lists.openembedded.org 
<[email protected]> wrote:
> 
> From: Mingli Yu <[email protected]>
> 
> Most host gcc doesn't support -fcanon-prefix-map right now, so
> empty DEBUG_PREFIX_MAP_EXTRA to fix the below build error.
> | gcc: error: unrecognized command-line option ‘-fcanon-prefix-map’; did you 
> mean ‘-fmacro-prefix-map=’?
> 
> Signed-off-by: Mingli Yu <[email protected]>
> ---
> meta-oe/recipes-kernel/bpftool/bpftool-native_6.16.bb | 2 ++
> 1 file changed, 2 insertions(+)
> 
> diff --git a/meta-oe/recipes-kernel/bpftool/bpftool-native_6.16.bb 
> b/meta-oe/recipes-kernel/bpftool/bpftool-native_6.16.bb
> index bc7712ce4d..fe3ad6138e 100644
> --- a/meta-oe/recipes-kernel/bpftool/bpftool-native_6.16.bb
> +++ b/meta-oe/recipes-kernel/bpftool/bpftool-native_6.16.bb
> @@ -14,6 +14,8 @@ SRC_URI[sha256sum] = 
> "1a4be2fe6b5246aa4ac8987a8a4af34c42a8dd7d08b46ab48516bcc1be
> 
> S = "${UNPACKDIR}/linux-${PV}"
> 
> +DEBUG_PREFIX_MAP_EXTRA:toolchain-gcc = “"

This is exposing a bug in either the recipe, or more likely the oe-core change. 
 The variable should only be used in target recipe builds.  Copying Khem.

Ross
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