Commit 1472464c authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: avoid scripts/kallsyms parsing /dev/null 



On macOS, as reported by Daniel Gomez, getline() sets ENOTTY to errno
if it is requested to read from /dev/null.

If this is worth fixing, I would rather pass an empty file to
scripts/kallsyms instead of adding the ugly #ifdef __APPLE__.

Fixes: c442db3f ("kbuild: remove PROVIDE() for kallsyms symbols")
Reported-by: default avatarDaniel Gomez <da.gomez@samsung.com>
Closes: https://lore.kernel.org/all/20240807-macos-build-support-v1-12-4cd1ded85694@samsung.com/


Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
Reviewed-by: default avatarNicolas Schier <nicolas@fjasle.eu>
Reviewed-by: default avatarDaniel Gomez <da.gomez@samsung.com>
parent e332a5ab

scripts/link-vmlinux.sh

+2 −1
Original line number Diff line number Diff line
@@ -219,7 +219,8 @@ kallsymso= 
strip_debug=



if is_enabled CONFIG_KALLSYMS; then

	kallsyms /dev/null .tmp_vmlinux0.kallsyms

	truncate -s0 .tmp_vmlinux.kallsyms0.syms

	kallsyms .tmp_vmlinux.kallsyms0.syms .tmp_vmlinux0.kallsyms

fi



if is_enabled CONFIG_KALLSYMS || is_enabled CONFIG_DEBUG_INFO_BTF; then