poky/meta/recipes-extended/ltp/ltp/0003-syscalls-swapon-swapoff-Move-common-library-to-libs.patch

From 0653f1d809d0cc13f84facb9d2d82d984ac4d0ac Mon Sep 17 00:00:00 2001
From: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Tue, 9 Mar 2021 15:25:16 +0000
Subject: [PATCH 3/3] syscalls/swapon/swapoff: Move common library to libs/

There is a race/determinism issue with libswapon currently as depending on
which makefile path builds it, the debug paths may be "../swapon/libswapon.c"
or "libswapon.c". To avoid the determinism issue, move libswapon to libs/
and use it from the shared location.

The header is moved to the common includes directory to match and
the Makefile.inc fragment can be dropped.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Upstream-Status: Submitted [http://lists.linux.it/pipermail/ltp/2021-March/021387.html]

---
 .../kernel/syscalls/swapon => include}/libswapon.h   |  0
 libs/libltpswapon/Makefile                           | 12 ++++++++++++
 .../swapon => libs/libltpswapon}/libswapon.c         |  0
 testcases/kernel/syscalls/swapoff/Makefile           |  7 +++++--
 testcases/kernel/syscalls/swapoff/Makefile.inc       |  6 ------
 testcases/kernel/syscalls/swapoff/swapoff01.c        |  2 +-
 testcases/kernel/syscalls/swapoff/swapoff02.c        |  2 +-
 testcases/kernel/syscalls/swapon/Makefile            |  6 +++---
 8 files changed, 22 insertions(+), 13 deletions(-)
 rename {testcases/kernel/syscalls/swapon => include}/libswapon.h (100%)
 create mode 100644 libs/libltpswapon/Makefile
 rename {testcases/kernel/syscalls/swapon => libs/libltpswapon}/libswapon.c (100%)
 delete mode 100644 testcases/kernel/syscalls/swapoff/Makefile.inc

diff --git a/testcases/kernel/syscalls/swapon/libswapon.h b/include/libswapon.h
similarity index 100%
rename from testcases/kernel/syscalls/swapon/libswapon.h
rename to include/libswapon.h
diff --git a/libs/libltpswapon/Makefile b/libs/libltpswapon/Makefile
new file mode 100644
index 000000000..8f738338b
--- /dev/null
+++ b/libs/libltpswapon/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) Richard Purdie <richard.purdie@linuxfoundation.org>
+
+top_srcdir		?= ../..
+
+include $(top_srcdir)/include/mk/env_pre.mk
+
+INTERNAL_LIB		:= libltpswapon.a
+
+include $(top_srcdir)/include/mk/lib.mk
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/syscalls/swapon/libswapon.c b/libs/libltpswapon/libswapon.c
similarity index 100%
rename from testcases/kernel/syscalls/swapon/libswapon.c
rename to libs/libltpswapon/libswapon.c
diff --git a/testcases/kernel/syscalls/swapoff/Makefile b/testcases/kernel/syscalls/swapoff/Makefile
index fbfbe0441..a74374605 100644
--- a/testcases/kernel/syscalls/swapoff/Makefile
+++ b/testcases/kernel/syscalls/swapoff/Makefile
@@ -3,7 +3,10 @@
 
 top_srcdir		?= ../../../..
 
+LTPLIBS = ltpswapon
+
 include $(top_srcdir)/include/mk/testcases.mk
-include $(abs_srcdir)/./Makefile.inc
+
+LTPLDLIBS  = -lltpswapon
+
 include $(top_srcdir)/include/mk/generic_leaf_target.mk
-$(MAKE_TARGETS): %: ../swapon/libswapon.o
diff --git a/testcases/kernel/syscalls/swapoff/Makefile.inc b/testcases/kernel/syscalls/swapoff/Makefile.inc
deleted file mode 100644
index 65350cbeb..000000000
--- a/testcases/kernel/syscalls/swapoff/Makefile.inc
+++ /dev/null
@@ -1,6 +0,0 @@
-LIBDIR			+= ../swapon/
-LIBSWAPON		:= $(LIBDIR)/libswapon.o
-$(LIBSWAPON):
-	$(MAKE) -C $(LIBDIR)
-CPPFLAGS		+= -I$(abs_srcdir)/$(LIBDIR)
-LDFLAGS			+= -L$(abs_builddir)/$(LIBDIR)
diff --git a/testcases/kernel/syscalls/swapoff/swapoff01.c b/testcases/kernel/syscalls/swapoff/swapoff01.c
index e115269c0..87a217a89 100644
--- a/testcases/kernel/syscalls/swapoff/swapoff01.c
+++ b/testcases/kernel/syscalls/swapoff/swapoff01.c
@@ -25,7 +25,7 @@
 #include <stdlib.h>
 #include "config.h"
 #include "lapi/syscalls.h"
-#include "../swapon/libswapon.h"
+#include "libswapon.h"
 
 static void setup(void);
 static void cleanup(void);
diff --git a/testcases/kernel/syscalls/swapoff/swapoff02.c b/testcases/kernel/syscalls/swapoff/swapoff02.c
index 8954f975f..60cd66c26 100644
--- a/testcases/kernel/syscalls/swapoff/swapoff02.c
+++ b/testcases/kernel/syscalls/swapoff/swapoff02.c
@@ -33,7 +33,7 @@
 #include "test.h"
 #include "lapi/syscalls.h"
 #include "safe_macros.h"
-#include "../swapon/libswapon.h"
+#include "libswapon.h"
 
 static void setup(void);
 static void cleanup(void);
diff --git a/testcases/kernel/syscalls/swapon/Makefile b/testcases/kernel/syscalls/swapon/Makefile
index 97113a447..57ec45d48 100644
--- a/testcases/kernel/syscalls/swapon/Makefile
+++ b/testcases/kernel/syscalls/swapon/Makefile
@@ -8,10 +8,10 @@ endif
 
 top_srcdir		?= ../../../..
 
+LTPLIBS = ltpswapon
+
 include $(top_srcdir)/include/mk/testcases.mk
 
-FILTER_OUT_MAKE_TARGETS         := libswapon
+LTPLDLIBS  = -lltpswapon
 
 include $(top_srcdir)/include/mk/generic_leaf_target.mk
-
-$(MAKE_TARGETS): %: libswapon.o
-- 
2.27.0