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Revert "kbuild, rust: use -fremap-path-prefix to make paths relative"

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This reverts commit dbdffaf50f.

--remap-path-prefix breaks the ability of debuggers to find the source
file corresponding to object files. As there is no simple or uniform
way to specify the source directory explicitly, this breaks developers
workflows.

Revert the unconditional usage of --remap-path-prefix, equivalent to the
same change for -ffile-prefix-map in KBUILD_CPPFLAGS.

Fixes: dbdffaf50f ("kbuild, rust: use -fremap-path-prefix to make paths relative")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Thomas Weißschuh 2025-05-11 08:02:28 +02:00 • committed by Masahiro Yamada
parent 020d7f1448
commit 8cf5b3f836
1 changed files with 0 additions and 1 deletions
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Makefile
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@ -1069,7 +1069,6 @@ KBUILD_CFLAGS += -fno-builtin-wcslen
# change __FILE__ to the relative path to the source directory
ifdef building_out_of_srctree
KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srcroot)/=)
KBUILD_RUSTFLAGS += --remap-path-prefix=$(srcroot)/=
endif
# include additional Makefiles when needed