examples: make examples/ optional
Most users don't need the standalone API examples. Distributions like SUSE
do not supply libgcc for cross-compiling and we cannot do without on ARMv8
for building examples/.
Make examples selectable via symbol CONFIG_EXAMPLES. It defaults to
yes on ARCH_QEMU to ensure that we compile the API as part of our
continuous integration.
Cc: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
diff --git a/Kconfig b/Kconfig
index 837b2f5..1a132f9 100644
--- a/Kconfig
+++ b/Kconfig
@@ -422,6 +422,14 @@
default 0x10000 if TARGET_TRICORDER
default 0x0
+config EXAMPLES
+ bool "Compile API examples"
+ depends on !SANDBOX
+ default y if ARCH_QEMU
+ help
+ U-Boot provides an API for standalone applications. Examples are
+ provided in directory examples/.
+
endmenu # General setup
menu "Boot images"
diff --git a/examples/Makefile b/examples/Makefile
index d440bc5..bf518bd 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0+
-ifndef CONFIG_SANDBOX
+ifdef CONFIG_EXAMPLES
ifdef FTRACE
subdir-ccflags-y += -finstrument-functions -DFTRACE