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samples: timers: use 'userprogs' syntax

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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 12:45:26 +09:00
parent 87ffbba9a9
commit b98ccc7150
3 changed files with 8 additions and 14 deletions
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4
samples/Kconfig
View File

@ -135,6 +135,10 @@ config SAMPLE_SECCOMP
Build samples of seccomp filters using various methods of
BPF filter construction.
config SAMPLE_TIMER
bool "Timer sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
config SAMPLE_UHID
bool "UHID sample"
depends on CC_CAN_LINK && HEADERS_INSTALL

1
samples/Makefile
View File

@ -16,6 +16,7 @@ subdir-$(CONFIG_SAMPLE_PIDFD) += pidfd
obj-$(CONFIG_SAMPLE_QMI_CLIENT) += qmi/
obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg/
subdir-$(CONFIG_SAMPLE_SECCOMP) += seccomp
subdir-$(CONFIG_SAMPLE_TIMER) += timers
obj-$(CONFIG_SAMPLE_TRACE_EVENTS) += trace_events/
obj-$(CONFIG_SAMPLE_TRACE_PRINTK) += trace_printk/
obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace/

17
samples/timers/Makefile
View File

@ -1,16 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
ifndef CROSS_COMPILE
uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
userprogs := hpet_example
always-y := $(userprogs)
ifeq ($(ARCH),x86)
CC := $(CROSS_COMPILE)gcc
PROGS := hpet_example
all: $(PROGS)
clean:
rm -fr $(PROGS)
endif
endif
userccflags += -I usr/include