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From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: linux-kbuild@vger.kernel.org
Cc: Sam Ravnborg <sam@ravnborg.org>,
Cao jin <caoj.fnst@cn.fujitsu.com>,
linux-kernel@vger.kernel.org,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Michal Marek <michal.lkml@markovi.net>
Subject: [PATCH v2 1/5] kbuild: remove unnecessary $(subst $(obj)/, , ...) in modname-multi
Date: Mon, 19 Mar 2018 18:01:23 +0900 [thread overview]
Message-ID: <1521450087-27291-1-git-send-email-yamada.masahiro@socionext.com> (raw)
In the context ...
$(obj)/%.s: $(src)/%.c FORCE
$(call if_changed_dep,cc_s_c)
$(obj)/%.i: $(src)/%.c FORCE
$(call if_changed_dep,cpp_i_c)
$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
$(call cmd,force_checksrc)
$(call if_changed_rule,cc_o_c)
$(obj)/%.lst: $(src)/%.c FORCE
$(call if_changed_dep,cc_lst_c)
'$*' returns the stem of the target (the part of '%'), so $(obj)/ has
already been ripped off.
$(subst $(obj)/,,$*.o) is the same as $*.o
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Cao jin <caoj.fnst@cn.fujitsu.com>
---
Changes in v2: None
scripts/Makefile.lib | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 5fd60af..4eedd6e 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -175,7 +175,7 @@ dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
# Finds the multi-part object the current object will be linked into
modname-multi = $(sort $(foreach m,$(multi-used),\
- $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
+ $(if $(filter $*.o, $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
# Useful for describing the dependency of composite objects
# Usage:
--
2.7.4
next reply other threads:[~2018-03-19 9:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-19 9:01 Masahiro Yamada [this message]
2018-03-19 9:01 ` [PATCH v2 2/5] kbuild: define KBUILD_MODNAME even if multiple modules share objects Masahiro Yamada
2018-03-19 9:01 ` [PATCH v2 3/5] kbuild: fix modname for composite modules Masahiro Yamada
2018-03-19 9:01 ` [PATCH v2 4/5] kbuild: simplify modname calculation Masahiro Yamada
2018-03-19 9:01 ` [PATCH v2 5/5] kbuild: move modname and modname-multi close to modname_flags Masahiro Yamada
2018-03-20 15:33 ` [PATCH v2 1/5] kbuild: remove unnecessary $(subst $(obj)/, , ...) in modname-multi Masahiro Yamada
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