samples: hidraw: build sample program for target architecture

This userspace program includes UAPI headers exported to usr/include/.
'make headers' always works for the target architecture (i.e. the same
architecture as the kernel), so the sample program should be built for
the target as well. Kbuild now supports 'userprogs' for that.

I also guarded the CONFIG option 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>

diff --git a/samples/Kconfig b/samples/Kconfig
index 2560e87c9cae67772e83682fb3878c2e06490d07..08f2d025ca05d0a9375cffaea5bb97ca7ccc27f3 100644 (file)
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -118,7 +118,7 @@ config SAMPLE_CONNECTOR
 
 config SAMPLE_HIDRAW
        bool "hidraw sample"
-       depends on HEADERS_INSTALL
+       depends on CC_CAN_LINK && HEADERS_INSTALL
 
 config SAMPLE_PIDFD
        bool "pidfd sample"

diff --git a/samples/hidraw/Makefile b/samples/hidraw/Makefile
index 8bd25f77671f48b1a4ccd88eaeed7947a3476418..d2c77ed60b39fb7040f48d59ed0aca1fd9022d3f 100644 (file)
--- a/samples/hidraw/Makefile
+++ b/samples/hidraw/Makefile
@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-# List of programs to build
-hostprogs := hid-example
-always-y := $(hostprogs)
+userprogs := hid-example
+always-y := $(userprogs)
 
-HOSTCFLAGS_hid-example.o += -I$(objtree)/usr/include
-
-all: hid-example
+userccflags += -I usr/include