Messages in this thread Patch in this message | | | From | Jiri Slaby <> | Subject | [PATCH v2 1/2] kbuild: pass jobserver to cmd_ld_vmlinux.o | Date | Tue, 19 Jul 2022 10:41:48 +0200 |
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Until the link-vmlinux.sh split (cf. the commit below), the linker was run with jobserver set in MAKEFLAGS. After the split, the command in Makefile.vmlinux_o is not prefixed by "+" anymore, so this information is lost.
Restore it as linkers working in parallel (esp. the LTO ones) make a use of it. In this case, it is gcc producing this warning otherwise: lto-wrapper: warning: jobserver is not available: ‘--jobserver-auth=’ is not present in ‘MAKEFLAGS’
Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Signed-off-by: Martin Liska <mliska@suse.cz> Fixes: 5d45950dfbb1 (kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o) Signed-off-by: Jiri Slaby <jslaby@suse.cz> ---
Notes: [v2] only commit message updated
scripts/Makefile.vmlinux_o | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/Makefile.vmlinux_o b/scripts/Makefile.vmlinux_o index 84019814f33f..886db0659d9c 100644 --- a/scripts/Makefile.vmlinux_o +++ b/scripts/Makefile.vmlinux_o @@ -65,7 +65,7 @@ define rule_ld_vmlinux.o endef vmlinux.o: $(initcalls-lds) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS) FORCE - $(call if_changed_rule,ld_vmlinux.o) + +$(call if_changed_rule,ld_vmlinux.o) targets += vmlinux.o -- 2.37.1
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