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samples: vfs: build sample programs for target architecture

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These userspace programs include 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 programs 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>
This commit is contained in:
Masahiro Yamada 2020-04-29 12:45:22 +09:00
parent 37249f5945
commit 28949b84b2
2 changed files with 4 additions and 9 deletions
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2
samples/Kconfig
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@ -184,7 +184,7 @@ config SAMPLE_ANDROID_BINDERFS
config SAMPLE_VFS
bool "Build example programs that use new VFS system calls"
depends on HEADERS_INSTALL
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build example userspace programs that use new VFS system calls such
as mount API and statx(). Note that this is restricted to the x86

11
samples/vfs/Makefile
View File

@ -1,10 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
# List of programs to build
hostprogs := \
test-fsmount \
test-statx
userprogs := test-fsmount test-statx
always-y := $(userprogs)
always-y := $(hostprogs)
HOSTCFLAGS_test-fsmount.o += -I$(objtree)/usr/include
HOSTCFLAGS_test-statx.o += -I$(objtree)/usr/include
userccflags += -I usr/include