linux-kernel - [PATCH v2 2/2] x86: set a dependency on macros.S

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Message-ID: <20181114204309.18645-3-namit@vmware.com>
Date:   Wed, 14 Nov 2018 12:43:09 -0800
From:   Nadav Amit <namit@...are.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Ingo Molnar <mingo@...hat.com>
CC:     Michal Marek <michal.lkml@...kovi.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, <x86@...nel.org>,
        <linux-kbuild@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Nadav Amit <namit@...are.com>
Subject: [PATCH v2 2/2] x86: set a dependency on macros.S

Changes in macros.S should trigger the recompilation of all C files, as
the macros might need to affect their compilation.

Acked-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Nadav Amit <namit@...are.com>
---
 scripts/Makefile.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index b8d26bdf48b0..efec77991c2b 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -313,13 +313,13 @@ cmd_undef_syms = echo
 endif
 
 # Built-in and composite module parts
-$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
+$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) $(ASM_MACRO_FILE:.s=.S) FORCE
 	$(call cmd,force_checksrc)
 	$(call if_changed_rule,cc_o_c)
 
 # Single-part modules are special since we need to mark them in $(MODVERDIR)
 
-$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
+$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) $(ASM_MACRO_FILE:.s=.S) FORCE
 	$(call cmd,force_checksrc)
 	$(call if_changed_rule,cc_o_c)
 	@{ echo $(@:.o=.ko); echo $@; \
-- 
2.17.1