[PATCH v2 15/15] samples: watchdog: use 'userprogs' syntax

From: Masahiro Yamada
Date: Tue Apr 28 2020 - 23:46:54 EST


Kbuild now supports the 'userprogs' syntax to compile userspace
programs for the same architecture as the kernel.

Add the entry to samples/Makefile to put this into the build bot
coverage.

I also added the CONFIG option guarded by 'depends on CC_CAN_LINK'
because $(CC) may not provide libc.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
---

Changes in v2: None

samples/Kconfig | 3 +++
samples/Makefile | 1 +
samples/watchdog/Makefile | 10 ++--------
3 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/samples/Kconfig b/samples/Kconfig
index a8629a0d4f96..5005f74ac0eb 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -205,5 +205,8 @@ config SAMPLE_INTEL_MEI
help
Build a sample program to work with mei device.

+config SAMPLE_WATCHDOG
+ bool "watchdog sample"
+ depends on CC_CAN_LINK

endif # SAMPLES
diff --git a/samples/Makefile b/samples/Makefile
index 042208326689..29c66aadd954 100644
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -26,3 +26,4 @@ obj-$(CONFIG_VIDEO_PCI_SKELETON) += v4l/
obj-y += vfio-mdev/
subdir-$(CONFIG_SAMPLE_VFS) += vfs
obj-$(CONFIG_SAMPLE_INTEL_MEI) += mei/
+subdir-$(CONFIG_SAMPLE_WATCHDOG) += watchdog
diff --git a/samples/watchdog/Makefile b/samples/watchdog/Makefile
index a9430fa60253..17384cfb387e 100644
--- a/samples/watchdog/Makefile
+++ b/samples/watchdog/Makefile
@@ -1,9 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
-CC := $(CROSS_COMPILE)gcc
-PROGS := watchdog-simple
-
-all: $(PROGS)
-
-clean:
- rm -fr $(PROGS)
-
+userprogs := watchdog-simple
+always-y := $(userprogs)
--
2.25.1