linux-kernel - [tip:perf/core] tools build: Add test for missing include

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Message-ID: <tip-0c00c3fb4e4a6ff714b7ad864f58e0fb33b3534c@git.kernel.org>
Date:	Tue, 29 Sep 2015 01:39:21 -0700
From:	tip-bot for Jiri Olsa <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	dsahern@...il.com, namhyung@...nel.org, jolsa@...nel.org,
	linux-kernel@...r.kernel.org, acme@...hat.com,
	a.p.zijlstra@...llo.nl, tglx@...utronix.de, mingo@...nel.org,
	hpa@...or.com
Subject: [tip:perf/core] tools build: Add test for missing include

Commit-ID:  0c00c3fb4e4a6ff714b7ad864f58e0fb33b3534c
Gitweb:     http://git.kernel.org/tip/0c00c3fb4e4a6ff714b7ad864f58e0fb33b3534c
Author:     Jiri Olsa <jolsa@...nel.org>
AuthorDate: Wed, 23 Sep 2015 12:33:57 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 28 Sep 2015 15:50:54 -0300

tools build: Add test for missing include

The current build framework fails to cope with header file removal. The
reason is that the removed header file stays in the .cmd file target
rule and forces the build to fail.

This issue is fixed and explained in the following patches.

Adding a new build test that simulates header removal.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1443004442-32660-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/build/tests/ex/Build    |  1 +
 tools/build/tests/ex/Makefile |  2 +-
 tools/build/tests/ex/ex.c     |  2 ++
 tools/build/tests/ex/inc.c    |  8 ++++++++
 tools/build/tests/run.sh      | 27 +++++++++++++++++++++++++++
 5 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/tools/build/tests/ex/Build b/tools/build/tests/ex/Build
index 429c7d4..4d502f9 100644
--- a/tools/build/tests/ex/Build
+++ b/tools/build/tests/ex/Build
@@ -4,6 +4,7 @@ ex-y += b.o
 ex-y += b.o
 ex-y += empty/
 ex-y += empty2/
+ex-y += inc.o
 
 libex-y += c.o
 libex-y += d.o
diff --git a/tools/build/tests/ex/Makefile b/tools/build/tests/ex/Makefile
index a8f596e..f279b84 100644
--- a/tools/build/tests/ex/Makefile
+++ b/tools/build/tests/ex/Makefile
@@ -1,4 +1,4 @@
-export srctree := ../../../..
+export srctree := $(abspath ../../../..)
 export CC      := gcc
 export LD      := ld
 export AR      := ar
diff --git a/tools/build/tests/ex/ex.c b/tools/build/tests/ex/ex.c
index dc42eb2..57de607 100644
--- a/tools/build/tests/ex/ex.c
+++ b/tools/build/tests/ex/ex.c
@@ -5,6 +5,7 @@ int c(void);
 int d(void);
 int e(void);
 int f(void);
+int inc(void);
 
 int main(void)
 {
@@ -14,6 +15,7 @@ int main(void)
 	d();
 	e();
 	f();
+	inc();
 
 	return 0;
 }
diff --git a/tools/build/tests/ex/inc.c b/tools/build/tests/ex/inc.c
new file mode 100644
index 0000000..c20f1e9
--- /dev/null
+++ b/tools/build/tests/ex/inc.c
@@ -0,0 +1,8 @@
+#ifdef INCLUDE
+#include "krava.h"
+#endif
+
+int inc(void)
+{
+	return 0;
+}
diff --git a/tools/build/tests/run.sh b/tools/build/tests/run.sh
index 5494f8e..44d2a0f 100755
--- a/tools/build/tests/run.sh
+++ b/tools/build/tests/run.sh
@@ -34,9 +34,36 @@ function test_ex_suffix {
 	make -C ex V=1 clean > /dev/null 2>&1
 	rm -f ex.out
 }
+
+function test_ex_include {
+	make -C ex V=1 clean > ex.out 2>&1
+
+	# build with krava.h include
+	touch ex/krava.h
+	make -C ex V=1 CFLAGS=-DINCLUDE >> ex.out 2>&1
+
+	if [ ! -x ./ex/ex ]; then
+	  echo FAILED
+	  exit -1
+	fi
+
+	# build without the include
+	rm -f ex/krava.h ex/ex
+	make -C ex V=1 >> ex.out 2>&1
+
+	if [ ! -x ./ex/ex ]; then
+	  echo FAILED
+	  exit -1
+	fi
+
+	make -C ex V=1 clean > /dev/null 2>&1
+	rm -f ex.out
+}
+
 echo -n Testing..
 
 test_ex
 test_ex_suffix
+test_ex_include
 
 echo OK
--
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