From 23603f1f837caeff45c6960722c2cad690db801d Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Sun, 31 May 2015 15:38:47 -0300
Subject: [PATCH] build: cache modules from playground

Now that we are able to build our own test modules, also allow to use
cached modules so a) kernel headers are not required and b) distro
maintainers are happy.  It's still need a "--disable-test-modules" in
the configure since the default is enabled.

There's no license problems anymore since all modules come from our own
repository, we ship the sources and the modules can be easily rebuilt.
---
 Makefile.am                                      |   5 +++++
 configure.ac                                     |   6 ++++++
 testsuite/module-playground/.gitignore           |   1 +
 testsuite/module-playground/Makefile             |   9 +++++++++
 .../module-playground/cache/mod-fake-cciss.ko    | Bin 0 -> 5504 bytes
 .../module-playground/cache/mod-fake-hpsa.ko     | Bin 0 -> 5264 bytes
 .../module-playground/cache/mod-fake-scsi-mod.ko | Bin 0 -> 4328 bytes
 testsuite/module-playground/cache/mod-foo-a.ko   | Bin 0 -> 4392 bytes
 testsuite/module-playground/cache/mod-foo-b.ko   | Bin 0 -> 4392 bytes
 testsuite/module-playground/cache/mod-foo-c.ko   | Bin 0 -> 4392 bytes
 testsuite/module-playground/cache/mod-foo.ko     | Bin 0 -> 3296 bytes
 testsuite/module-playground/cache/mod-loop-a.ko  | Bin 0 -> 4672 bytes
 testsuite/module-playground/cache/mod-loop-b.ko  | Bin 0 -> 4672 bytes
 testsuite/module-playground/cache/mod-loop-c.ko  | Bin 0 -> 4672 bytes
 testsuite/module-playground/cache/mod-loop-d.ko  | Bin 0 -> 4672 bytes
 testsuite/module-playground/cache/mod-loop-e.ko  | Bin 0 -> 4672 bytes
 testsuite/module-playground/cache/mod-simple.ko  | Bin 0 -> 3472 bytes
 17 files changed, 21 insertions(+)
 create mode 100644 testsuite/module-playground/cache/mod-fake-cciss.ko
 create mode 100644 testsuite/module-playground/cache/mod-fake-hpsa.ko
 create mode 100644 testsuite/module-playground/cache/mod-fake-scsi-mod.ko
 create mode 100644 testsuite/module-playground/cache/mod-foo-a.ko
 create mode 100644 testsuite/module-playground/cache/mod-foo-b.ko
 create mode 100644 testsuite/module-playground/cache/mod-foo-c.ko
 create mode 100644 testsuite/module-playground/cache/mod-foo.ko
 create mode 100644 testsuite/module-playground/cache/mod-loop-a.ko
 create mode 100644 testsuite/module-playground/cache/mod-loop-b.ko
 create mode 100644 testsuite/module-playground/cache/mod-loop-c.ko
 create mode 100644 testsuite/module-playground/cache/mod-loop-d.ko
 create mode 100644 testsuite/module-playground/cache/mod-loop-e.ko
 create mode 100644 testsuite/module-playground/cache/mod-simple.ko

diff --git a/Makefile.am b/Makefile.am
index 9457655..b991936 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -230,7 +230,12 @@ build-module-playground:
 		cp -r $(top_srcdir)/$(MODULE_PLAYGROUND) $(top_builddir)/$(MODULE_PLAYGROUND) && \
 		find $(top_builddir)/$(MODULE_PLAYGROUND) -type d -exec chmod +w {} \; ; \
 		fi
+if BUILD_MODULES
 	$(MAKE) -C $(MODULE_PLAYGROUND)
+else
+	$(MAKE) -C $(MODULE_PLAYGROUND) FAKE_BUILD=1
+endif
+
 
 rootfs: build-module-playground
 	$(CREATE_ROOTFS)
diff --git a/configure.ac b/configure.ac
index be597b4..6e67584 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,6 +127,11 @@ AC_ARG_ENABLE([manpages],
 	[], enable_manpages=yes)
 AM_CONDITIONAL([BUILD_MANPAGES], [test "x$enable_manpages" = "xyes"])
 
+AC_ARG_ENABLE([test-modules],
+        AS_HELP_STRING([--disable-test-modules], [disable building test modules during make check: cached modules will be used @<:@default=enabled@:>@]),
+	[], enable_test_modules=yes)
+AM_CONDITIONAL([BUILD_MODULES], [test "x$enable_test_modules" = "xyes"])
+
 AC_ARG_ENABLE([logging],
 	AS_HELP_STRING([--disable-logging], [disable system logging @<:@default=enabled@:>@]),
 	[], enable_logging=yes)
@@ -282,4 +287,5 @@ AC_MSG_RESULT([
 	coverage:		${enable_coverage}
 	doc:			${enable_gtk_doc}
 	man:			${enable_manpages}
+	test-modules:           ${enable_test_modules}
 ])
diff --git a/testsuite/module-playground/.gitignore b/testsuite/module-playground/.gitignore
index 5cd3034..6767e0e 100644
--- a/testsuite/module-playground/.gitignore
+++ b/testsuite/module-playground/.gitignore
@@ -1,6 +1,7 @@
 *o.cmd
 *.ko
 !mod-simple-*.ko
+!cache/*.ko
 *.mod.c
 .tmp_versions
 modules.order
diff --git a/testsuite/module-playground/Makefile b/testsuite/module-playground/Makefile
index 5ba9ed2..a5f142f 100644
--- a/testsuite/module-playground/Makefile
+++ b/testsuite/module-playground/Makefile
@@ -38,6 +38,9 @@ else
 # normal makefile
 KDIR ?= /lib/modules/`uname -r`/build
 KVER ?= `uname -r`
+ifeq ($(FAKE_BUILD),)
+    FAKE_BUILD=0
+endif
 
 ARCH_SPECIFIC_MODULES := mod-simple-x86_64.ko mod-simple-i386.ko mod-simple-sparc64.ko
 MY_MODULES := $(filter-out $(ARCH_SPECIFIC_MODULES),$(wildcard *.ko))
@@ -48,8 +51,14 @@ mod-simple-%.ko: mod-simple-%.c Makefile.arch
 	$(eval arch=$(patsubst mod-simple-%.ko,%,$@))
 	$(MAKE) KDIR=$(KDIR_$(arch)) ARCH=$(arch) CROSS_COMPILE=$(CROSS_COMPILE_$(arch)) -f Makefile.arch
 
+ifeq ($(FAKE_BUILD),0)
 modules:
 	$(MAKE) -C $(KDIR) M=$$PWD
+else
+modules:
+	@echo "  CP       cache/*.ko"
+	@cp cache/*.ko .
+endif
 
 arch-modules: $(ARCH_SPECIFIC_MODULES)
 
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GIT binary patch
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diff --git a/testsuite/module-playground/cache/mod-foo-b.ko b/testsuite/module-playground/cache/mod-foo-b.ko
new file mode 100644
index 0000000000000000000000000000000000000000..53bf3a9122dfb19ff3036e03a4df8dbc055ef8b8
GIT binary patch
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diff --git a/testsuite/module-playground/cache/mod-foo-c.ko b/testsuite/module-playground/cache/mod-foo-c.ko
new file mode 100644
index 0000000000000000000000000000000000000000..083e801a7e9b80d956066413a102584699657910
GIT binary patch
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diff --git a/testsuite/module-playground/cache/mod-foo.ko b/testsuite/module-playground/cache/mod-foo.ko
new file mode 100644
index 0000000000000000000000000000000000000000..096147820ab7a6141907ab104ba145c34a821330
GIT binary patch
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new file mode 100644
index 0000000000000000000000000000000000000000..51533d839ea89b0a0ce949303b3eabd2b1c0b7bc
GIT binary patch
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diff --git a/testsuite/module-playground/cache/mod-loop-b.ko b/testsuite/module-playground/cache/mod-loop-b.ko
new file mode 100644
index 0000000000000000000000000000000000000000..5e2034898bb8a1ab42baaefd80882269406e89e1
GIT binary patch
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diff --git a/testsuite/module-playground/cache/mod-loop-c.ko b/testsuite/module-playground/cache/mod-loop-c.ko
new file mode 100644
index 0000000000000000000000000000000000000000..6a02b04fa790f9ee28453dfc777d3a527bf35180
GIT binary patch
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