samples: watchdog: use 'userprogs' syntax

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@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Masahiro Yamada 2020-04-29 12:45:27 +09:00
parent b98ccc7150
commit 88a8e278ff
3 changed files with 6 additions and 8 deletions

View File

@ -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

View File

@ -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

View File

@ -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)