* [PATCH 0/3] kbuild: better implementation to display "Entering directory ..."
@ 2014-09-09 11:02 Masahiro Yamada
2014-09-09 11:02 ` [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply Masahiro Yamada
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Masahiro Yamada @ 2014-09-09 11:02 UTC (permalink / raw)
To: linux-kbuild; +Cc: Masahiro Yamada, linux-kernel, Michal Marek
Masahiro Yamada (3):
kbuild: fake the "Entering directory ..." message more simply
kbuild: use $(Q) for sub-make target
kbuild: handle C=... and M=... after entering into build directory
Makefile | 82 ++++++++++++++++++++++++++++++----------------------------------
1 file changed, 38 insertions(+), 44 deletions(-)
--
1.9.1
^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply
2014-09-09 11:02 [PATCH 0/3] kbuild: better implementation to display "Entering directory ..." Masahiro Yamada
@ 2014-09-09 11:02 ` Masahiro Yamada
2014-09-09 16:28 ` Peter Foley
2014-10-01 21:21 ` Michal Marek
2014-09-09 11:02 ` [PATCH 2/3] kbuild: use $(Q) for sub-make target Masahiro Yamada
2014-09-09 11:02 ` [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory Masahiro Yamada
2 siblings, 2 replies; 9+ messages in thread
From: Masahiro Yamada @ 2014-09-09 11:02 UTC (permalink / raw)
To: linux-kbuild; +Cc: Masahiro Yamada, Michal Marek, linux-kernel
Commit c2e28dc975ea87feed84415006ae143424912ac7
(kbuild: Print the name of the build directory)
added a gimmick to show the "Entering directory ...".
Instead of echoing the hard-coded message (that is, we need to know
the exact message), moving --no-print-directory would be easier.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
Makefile | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/Makefile b/Makefile
index f7b9174..c1bd5a4 100644
--- a/Makefile
+++ b/Makefile
@@ -10,11 +10,9 @@ NAME = Shuffling Zombie Juror
# Comments in this file are targeted only to the developer, do not
# expect to learn how to build the kernel reading this file.
-# Do not:
-# o use make's built-in rules and variables
-# (this increases performance and avoids hard-to-debug behaviour);
-# o print "Entering directory ...";
-MAKEFLAGS += -rR --no-print-directory
+# Do not use make's built-in rules and variables
+# (this increases performance and avoids hard-to-debug behaviour);
+MAKEFLAGS += -rR
# Avoid funny character set dependencies
unexport LC_ALL
@@ -172,13 +170,7 @@ PHONY += $(MAKECMDGOALS) sub-make
$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
@:
-# Fake the "Entering directory" message once, so that IDEs/editors are
-# able to understand relative filenames.
- echodir := @echo
- quiet_echodir := @echo
-silent_echodir := @:
sub-make: FORCE
- $($(quiet)echodir) "make[1]: Entering directory \`$(KBUILD_OUTPUT)'"
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
KBUILD_SRC=$(CURDIR) \
KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
@@ -192,6 +184,11 @@ endif # ifeq ($(KBUILD_SRC),)
# We process the rest of the Makefile if this is the final invocation of make
ifeq ($(skip-makefile),)
+# Do not print "Entering directory ...",
+# but we want to display it when entering to the output directory
+# so that IDEs/editors are able to understand relative filenames.
+MAKEFLAGS += --no-print-directory
+
# If building an external module we do not care about the all: rule
# but instead _all depend on modules
PHONY += all
--
1.9.1
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH 2/3] kbuild: use $(Q) for sub-make target
2014-09-09 11:02 [PATCH 0/3] kbuild: better implementation to display "Entering directory ..." Masahiro Yamada
2014-09-09 11:02 ` [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply Masahiro Yamada
@ 2014-09-09 11:02 ` Masahiro Yamada
2014-09-09 16:25 ` Peter Foley
2014-09-09 11:02 ` [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory Masahiro Yamada
2 siblings, 1 reply; 9+ messages in thread
From: Masahiro Yamada @ 2014-09-09 11:02 UTC (permalink / raw)
To: linux-kbuild; +Cc: Masahiro Yamada, Michal Marek, linux-kernel
Since commit 066b7ed9558087a7957a1128f27d7a3462ff117f
(kbuild: Do not print the build directory with make -s),
"Q" is defined above the sub-make target.
This commit takes advantage of that and replaces
"$(if $(KBUILD_VERBOSE:1=),@)" with "$(Q)".
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
Makefile | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index c1bd5a4..105919a 100644
--- a/Makefile
+++ b/Makefile
@@ -171,8 +171,7 @@ $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
@:
sub-make: FORCE
- $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
- KBUILD_SRC=$(CURDIR) \
+ $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
$(filter-out _all sub-make,$(MAKECMDGOALS))
--
1.9.1
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory
2014-09-09 11:02 [PATCH 0/3] kbuild: better implementation to display "Entering directory ..." Masahiro Yamada
2014-09-09 11:02 ` [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply Masahiro Yamada
2014-09-09 11:02 ` [PATCH 2/3] kbuild: use $(Q) for sub-make target Masahiro Yamada
@ 2014-09-09 11:02 ` Masahiro Yamada
2014-09-09 16:27 ` Peter Foley
2014-10-01 21:25 ` Michal Marek
2 siblings, 2 replies; 9+ messages in thread
From: Masahiro Yamada @ 2014-09-09 11:02 UTC (permalink / raw)
To: linux-kbuild; +Cc: Masahiro Yamada, Michal Marek, linux-kernel
This commit avoids processing C=... and M=... twice
when O=... is also given.
Besides, we can also remove KBUILD_EXTMOD="$(KBUILD_EXTMOD)"
in the sub-make target.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
Makefile | 60 +++++++++++++++++++++++++++++-------------------------------
1 file changed, 29 insertions(+), 31 deletions(-)
diff --git a/Makefile b/Makefile
index 105919a..48c8ee1 100644
--- a/Makefile
+++ b/Makefile
@@ -95,34 +95,6 @@ endif
export quiet Q KBUILD_VERBOSE
-# Call a source code checker (by default, "sparse") as part of the
-# C compilation.
-#
-# Use 'make C=1' to enable checking of only re-compiled files.
-# Use 'make C=2' to enable checking of *all* source files, regardless
-# of whether they are re-compiled or not.
-#
-# See the file "Documentation/sparse.txt" for more details, including
-# where to get the "sparse" utility.
-
-ifeq ("$(origin C)", "command line")
- KBUILD_CHECKSRC = $(C)
-endif
-ifndef KBUILD_CHECKSRC
- KBUILD_CHECKSRC = 0
-endif
-
-# Use make M=dir to specify directory of external module to build
-# Old syntax make ... SUBDIRS=$PWD is still supported
-# Setting the environment variable KBUILD_EXTMOD take precedence
-ifdef SUBDIRS
- KBUILD_EXTMOD ?= $(SUBDIRS)
-endif
-
-ifeq ("$(origin M)", "command line")
- KBUILD_EXTMOD := $(M)
-endif
-
# kbuild supports saving output files in a separate directory.
# To locate output files in a separate directory two syntaxes are supported.
# In both cases the working directory must be the root of the kernel src.
@@ -138,7 +110,6 @@ endif
# The O= assignment takes precedence over the KBUILD_OUTPUT environment
# variable.
-
# KBUILD_SRC is set on invocation of make in OBJ directory
# KBUILD_SRC is not intended to be used by the regular user (for now)
ifeq ($(KBUILD_SRC),)
@@ -172,8 +143,7 @@ $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
sub-make: FORCE
$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
- KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
- $(filter-out _all sub-make,$(MAKECMDGOALS))
+ -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
# Leave processing to above invocation of make
skip-makefile := 1
@@ -188,6 +158,34 @@ ifeq ($(skip-makefile),)
# so that IDEs/editors are able to understand relative filenames.
MAKEFLAGS += --no-print-directory
+# Call a source code checker (by default, "sparse") as part of the
+# C compilation.
+#
+# Use 'make C=1' to enable checking of only re-compiled files.
+# Use 'make C=2' to enable checking of *all* source files, regardless
+# of whether they are re-compiled or not.
+#
+# See the file "Documentation/sparse.txt" for more details, including
+# where to get the "sparse" utility.
+
+ifeq ("$(origin C)", "command line")
+ KBUILD_CHECKSRC = $(C)
+endif
+ifndef KBUILD_CHECKSRC
+ KBUILD_CHECKSRC = 0
+endif
+
+# Use make M=dir to specify directory of external module to build
+# Old syntax make ... SUBDIRS=$PWD is still supported
+# Setting the environment variable KBUILD_EXTMOD take precedence
+ifdef SUBDIRS
+ KBUILD_EXTMOD ?= $(SUBDIRS)
+endif
+
+ifeq ("$(origin M)", "command line")
+ KBUILD_EXTMOD := $(M)
+endif
+
# If building an external module we do not care about the all: rule
# but instead _all depend on modules
PHONY += all
--
1.9.1
^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH 2/3] kbuild: use $(Q) for sub-make target
2014-09-09 11:02 ` [PATCH 2/3] kbuild: use $(Q) for sub-make target Masahiro Yamada
@ 2014-09-09 16:25 ` Peter Foley
0 siblings, 0 replies; 9+ messages in thread
From: Peter Foley @ 2014-09-09 16:25 UTC (permalink / raw)
To: Masahiro Yamada; +Cc: linux-kbuild, Michal Marek, LKML
On Tue, Sep 9, 2014 at 7:02 AM, Masahiro Yamada
<yamada.m@jp.panasonic.com> wrote:
> Since commit 066b7ed9558087a7957a1128f27d7a3462ff117f
> (kbuild: Do not print the build directory with make -s),
> "Q" is defined above the sub-make target.
>
> This commit takes advantage of that and replaces
> "$(if $(KBUILD_VERBOSE:1=),@)" with "$(Q)".
>
> Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Peter Foley <pefoley2@pefoley.com>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory
2014-09-09 11:02 ` [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory Masahiro Yamada
@ 2014-09-09 16:27 ` Peter Foley
2014-10-01 21:25 ` Michal Marek
1 sibling, 0 replies; 9+ messages in thread
From: Peter Foley @ 2014-09-09 16:27 UTC (permalink / raw)
To: Masahiro Yamada; +Cc: linux-kbuild, Michal Marek, LKML
On Tue, Sep 9, 2014 at 7:02 AM, Masahiro Yamada
<yamada.m@jp.panasonic.com> wrote:
> This commit avoids processing C=... and M=... twice
> when O=... is also given.
>
> Besides, we can also remove KBUILD_EXTMOD="$(KBUILD_EXTMOD)"
> in the sub-make target.
>
> Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Peter Foley <pefoley2@pefoley.com>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply
2014-09-09 11:02 ` [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply Masahiro Yamada
@ 2014-09-09 16:28 ` Peter Foley
2014-10-01 21:21 ` Michal Marek
1 sibling, 0 replies; 9+ messages in thread
From: Peter Foley @ 2014-09-09 16:28 UTC (permalink / raw)
To: Masahiro Yamada; +Cc: linux-kbuild, Michal Marek, LKML
On Tue, Sep 9, 2014 at 7:02 AM, Masahiro Yamada
<yamada.m@jp.panasonic.com> wrote:
> Commit c2e28dc975ea87feed84415006ae143424912ac7
> (kbuild: Print the name of the build directory)
> added a gimmick to show the "Entering directory ...".
>
> Instead of echoing the hard-coded message (that is, we need to know
> the exact message), moving --no-print-directory would be easier.
>
> Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Peter Foley <pefoley2@pefoley.com>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply
2014-09-09 11:02 ` [PATCH 1/3] kbuild: fake the "Entering directory ..." message more simply Masahiro Yamada
2014-09-09 16:28 ` Peter Foley
@ 2014-10-01 21:21 ` Michal Marek
1 sibling, 0 replies; 9+ messages in thread
From: Michal Marek @ 2014-10-01 21:21 UTC (permalink / raw)
To: Masahiro Yamada, linux-kbuild; +Cc: linux-kernel
Dne 9.9.2014 13:02, Masahiro Yamada napsal(a):
> Commit c2e28dc975ea87feed84415006ae143424912ac7
> (kbuild: Print the name of the build directory)
> added a gimmick to show the "Entering directory ...".
>
> Instead of echoing the hard-coded message (that is, we need to know
> the exact message), moving --no-print-directory would be easier.
It now prints the localized text for me. But I guess I'm getting what I
asked for :). Applied to kbuild.git#kbuild.
Michal
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory
2014-09-09 11:02 ` [PATCH 3/3] kbuild: handle C=... and M=... after entering into build directory Masahiro Yamada
2014-09-09 16:27 ` Peter Foley
@ 2014-10-01 21:25 ` Michal Marek
1 sibling, 0 replies; 9+ messages in thread
From: Michal Marek @ 2014-10-01 21:25 UTC (permalink / raw)
To: Masahiro Yamada, linux-kbuild; +Cc: linux-kernel
Dne 9.9.2014 13:02, Masahiro Yamada napsal(a):
> sub-make: FORCE
> $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
> - KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
> - $(filter-out _all sub-make,$(MAKECMDGOALS))
> + -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
>
> # Leave processing to above invocation of make
> skip-makefile := 1
> @@ -188,6 +158,34 @@ ifeq ($(skip-makefile),)
> # so that IDEs/editors are able to understand relative filenames.
> MAKEFLAGS += --no-print-directory
>
> +# Call a source code checker (by default, "sparse") as part of the
> +# C compilation.
> +#
> +# Use 'make C=1' to enable checking of only re-compiled files.
> +# Use 'make C=2' to enable checking of *all* source files, regardless
> +# of whether they are re-compiled or not.
> +#
> +# See the file "Documentation/sparse.txt" for more details, including
> +# where to get the "sparse" utility.
> +
> +ifeq ("$(origin C)", "command line")
I thought that the origin check would not work in the sub-make, because
the variables are part of the environment. But the sub-makes learn about
commandline variables from the MAKEFLAGS variable, so it works as
expected. Nice cleanup!
Michal
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2014-10-01 21:25 UTC | newest]
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2014-09-09 11:02 [PATCH 0/3] kbuild: better implementation to display "Entering directory ..." Masahiro Yamada
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2014-09-09 16:28 ` Peter Foley
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2014-09-09 11:02 ` [PATCH 2/3] kbuild: use $(Q) for sub-make target Masahiro Yamada
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