From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: linux-kbuild@vger.kernel.org
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
Michal Marek <michal.lkml@markovi.net>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] kbuild: fix single target build for external module
Date: Thu, 22 Nov 2018 08:11:54 +0900 [thread overview]
Message-ID: <1542841915-19686-1-git-send-email-yamada.masahiro@socionext.com> (raw)
Building a single target in an external module fails due to missing
.tmp_versions directory.
For example,
$ make -C /lib/modules/$(uname -r)/build M=$PWD foo.o
will fail in the following way:
CC [M] /home/masahiro/foo/foo.o
/bin/sh: 1: cannot create /home/masahiro/foo/.tmp_versions/foo.mod: Directory nonexistent
This is because $(cmd_crmodverdir) is executed only for /, %/, %.ko
single targets for external modules. Create .tmp_versions in the
'prepare' target.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Makefile | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/Makefile b/Makefile
index d5da1df..36f3f0e 100644
--- a/Makefile
+++ b/Makefile
@@ -1554,9 +1554,6 @@ else # KBUILD_EXTMOD
# We are always building modules
KBUILD_MODULES := 1
-PHONY += crmodverdir
-crmodverdir:
- $(cmd_crmodverdir)
PHONY += $(objtree)/Module.symvers
$(objtree)/Module.symvers:
@@ -1568,7 +1565,7 @@ $(objtree)/Module.symvers:
module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
PHONY += $(module-dirs) modules
-$(module-dirs): crmodverdir $(objtree)/Module.symvers
+$(module-dirs): prepare $(objtree)/Module.symvers
$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
modules: $(module-dirs)
@@ -1609,7 +1606,8 @@ help:
# Dummies...
PHONY += prepare scripts
-prepare: ;
+prepare:
+ $(cmd_crmodverdir)
scripts: ;
endif # KBUILD_EXTMOD
@@ -1733,17 +1731,14 @@ endif
# Modules
/: prepare scripts FORCE
- $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
# Make sure the latest headers are built for Documentation
Documentation/ samples/: headers_install
%/: prepare scripts FORCE
- $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
%.ko: prepare scripts FORCE
- $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir) $(@:.ko=.o)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
--
2.7.4
next reply other threads:[~2018-11-21 23:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-21 23:11 Masahiro Yamada [this message]
2018-11-21 23:11 ` [PATCH 2/2] kbuild: remove 'scripts' dummy target for external module build Masahiro Yamada
2018-11-26 14:51 ` [PATCH 1/2] kbuild: fix single target build for external module Masahiro Yamada
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