Since commit 321648455061 ("kbuild: use obj-y instead extra-y for
objects placed at the head"), 'make AR=gcc-ar' shows the following
message:
/usr/bin/ar terminated with signal 13 [Broken pipe]
The resulting vmlinux is correct, but it is better to silence this.
'head -n1' exits after reading the first line, so the pipe is closed.
Use 'sed -n 1p' to eat the stream till the end.
Fixes: 321648455061 ("kbuild: use obj-y instead extra-y for objects placed at the head")
Reported-by: Jiri Slaby <jirislaby@xxxxxxxxxx>
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index f41ec8c8426b..0e42a7982826 100644
--- a/Makefile
+++ b/Makefile
@@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
cmd_ar_vmlinux.a = \
rm -f $@; \
$(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
- $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
+ $(AR) mPiT $$($(AR) t $@ | sed -n 1p) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
targets += vmlinux.a
vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
--
2.34.1
