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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-06-04 19:13:59 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-06-15 19:57:01 +0900
commite949f4c2d6a3df2b7fd00e56c0f081b15284906f (patch)
treec5b592d884e6eef3680177e384dfd567cc6e03e5 /samples/Kconfig
parentc6509a24d6ba0f8560a81c032c30d169ba467b0a (diff)
downloadlinux-stericsson-e949f4c2d6a3df2b7fd00e56c0f081b15284906f.tar.gz
kbuild: add CONFIG_HEADERS_INSTALL and loosen the dependency of samples
Commit 5318321d367c ("samples: disable CONFIG_SAMPLES for UML") used a big hammer to fix the build errors under the samples/ directory. Only some samples actually include uapi headers from usr/include. Introduce CONFIG_HEADERS_INSTALL since 'depends on HEADERS_INSTALL' is clearer than 'depends on !UML'. If this option is enabled, uapi headers are installed before starting directory descending. I added 'depends on HEADERS_INSTALL' to per-sample CONFIG options. This allows UML to compile some samples. $ make ARCH=um allmodconfig samples/ [ snip ] CC [M] samples/configfs/configfs_sample.o CC [M] samples/kfifo/bytestream-example.o CC [M] samples/kfifo/dma-example.o CC [M] samples/kfifo/inttype-example.o CC [M] samples/kfifo/record-example.o CC [M] samples/kobject/kobject-example.o CC [M] samples/kobject/kset-example.o CC [M] samples/trace_events/trace-events-sample.o CC [M] samples/trace_printk/trace-printk.o AR samples/vfio-mdev/built-in.a AR samples/built-in.a Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'samples/Kconfig')
-rw-r--r--samples/Kconfig14
1 files changed, 11 insertions, 3 deletions
diff --git a/samples/Kconfig b/samples/Kconfig
index d63cc8a3e0df..71b5e833dd9e 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -1,7 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
menuconfig SAMPLES
bool "Sample kernel code"
- depends on !UML
help
You can build and test sample kernel code here.
@@ -95,16 +94,24 @@ config SAMPLE_CONFIGFS
config SAMPLE_CONNECTOR
tristate "Build connector sample -- loadable modules only"
- depends on CONNECTOR && m
+ depends on CONNECTOR && HEADERS_INSTALL && m
help
When enabled, this builds both a sample kernel module for
the connector interface and a user space tool to communicate
with it.
See also Documentation/connector/connector.txt
+config SAMPLE_HIDRAW
+ bool "hidraw sample"
+ depends on HEADERS_INSTALL
+
+config SAMPLE_PIDFD
+ bool "pidfd sample"
+ depends on HEADERS_INSTALL
+
config SAMPLE_SECCOMP
bool "Build seccomp sample code"
- depends on SECCOMP_FILTER
+ depends on SECCOMP_FILTER && HEADERS_INSTALL
help
Build samples of seccomp filters using various methods of
BPF filter construction.
@@ -156,6 +163,7 @@ config SAMPLE_ANDROID_BINDERFS
config SAMPLE_VFS
bool "Build example programs that use new VFS system calls"
+ depends on 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