[PATCH v2 07/11] kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod

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Towards the goal of removing MODVERDIR, read out modules.order to get
the list of modules to be processed. This is simpler than parsing *.mod
files in $(MODVERDIR).

For external modules, $(KBUILD_EXTMOD)/modules.order should be read.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

Changes in v2: None

 scripts/Makefile.modpost | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index fec6ec2ffa47..2ab1694a7df3 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -8,9 +8,10 @@
 # b) A <module>.o file which is the .o files above linked together
 # c) A <module>.mod file in $(MODVERDIR)/, listing the name of the
 #    the preliminary <module>.o file, plus all .o files
+# d) modules.order, which lists all the modules
 
 # Stage 2 is handled by this file and does the following
-# 1) Find all modules from the files listed in $(MODVERDIR)/
+# 1) Find all modules listed in modules.order
 # 2) modpost is then used to
 # 3)  create one <module>.mod.c file pr. module
 # 4)  create one Module.symvers file with CRC for all exported symbols
@@ -60,10 +61,10 @@ include scripts/Makefile.lib
 kernelsymfile := $(objtree)/Module.symvers
 modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers
 
-# Step 1), find all modules listed in $(MODVERDIR)/
-MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs -r grep -h '\.ko$$' | sort -u
-__modules := $(shell $(MODLISTCMD))
-modules   := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o)))
+modorder := $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/)modules.order
+
+# Step 1), find all modules listed in modules.order
+modules := $(sort $(shell cat $(modorder)))
 
 # Stop after building .o files if NOFINAL is set. Makes compile tests quicker
 _modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules))
@@ -84,7 +85,7 @@ MODPOST_OPT=$(subst -i,-n,$(filter -i,$(MAKEFLAGS)))
 
 # We can go over command line length here, so be careful.
 quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules
-      cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$$/.o/' | $(modpost) $(MODPOST_OPT) -s -T -
+      cmd_modpost = sed 's/ko$$/o/' $(modorder) | $(modpost) $(MODPOST_OPT) -s -T -
 
 PHONY += __modpost
 __modpost: $(modules:.ko=.o) FORCE
-- 
2.17.1




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