On macOS, 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: c442db3f49f2 ("kbuild: remove PROVIDE() for kallsyms symbols")
Reported-by: Daniel Gomez <da.gomez@xxxxxxxxxxx>
Closes: https://lore.kernel.org/all/20240807-macos-build-support-v1-12-4cd1ded85694@xxxxxxxxxxx/
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
scripts/link-vmlinux.sh | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index f7b2503cdba9..41c68ae3415d 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -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
--
2.43.0
