[PATCH 16/49] kconfig: Add host support to CONFIG_IS_ENABLED()

Simon Glass
2021-05-03T23:11:03Z

At present we must separately test for the host build for many options,
since we force them to be enabled. For example, CONFIG_FIT is always
enabled in the host tools, even if CONFIG_FIT is not enabled by the
board itself.

It would be more convenient if we could use, for example,
CONFIG_IS_ENABLED(FIT) and get CONFIG_HOST_FIT, when building for the
host. Add support for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

(no changes since v1)

include/linux/kconfig.h | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h
index d109ed3119e..6216b58625f 100644
--- a/include/linux/kconfig.h
+++ b/include/linux/kconfig.h
@@ -31,11 +31,14 @@
(config_enabled(option))

/*
- * U-Boot add-on: Helper macros to reference to different macros
- * (CONFIG_ or CONFIG_SPL_ prefixed), depending on the build context.
+ * U-Boot add-on: Helper macros to reference to different macros (prefixed by
+ * CONFIG_, CONFIG_SPL_, CONFIG_TPL or CONFIG_HOST), depending on the build
+ * context.
*/

-#if defined(CONFIG_TPL_BUILD)
+#ifdef USE_HOSTCC
+#define _CONFIG_PREFIX HOST_
+#elif defined(CONFIG_TPL_BUILD)
#define _CONFIG_PREFIX TPL_
#elif defined(CONFIG_SPL_BUILD)
#define _CONFIG_PREFIX SPL_
@@ -49,6 +52,7 @@

/*
* CONFIG_VAL(FOO) evaluates to the value of
+ * CONFIG_HOST_FOO if USE_HOSTCC is undefined,
* CONFIG_FOO if CONFIG_SPL_BUILD is undefined,
* CONFIG_SPL_FOO if CONFIG_SPL_BUILD is defined.
* CONFIG_TPL_FOO if CONFIG_TPL_BUILD is defined.
@@ -76,18 +80,21 @@

/*
* CONFIG_IS_ENABLED(FOO) expands to
+ * 1 if USE_HOSTCC is defined and CONFIG_HOST_FOO is set to 'y',
* 1 if CONFIG_SPL_BUILD is undefined and CONFIG_FOO is set to 'y',
* 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_FOO is set to 'y',
* 1 if CONFIG_TPL_BUILD is defined and CONFIG_TPL_FOO is set to 'y',
* 0 otherwise.
*
* CONFIG_IS_ENABLED(FOO, (abc)) expands to
+ * abc if USE_HOSTCC is defined and CONFIG_HOST_FOO is set to 'y',
* abc if CONFIG_SPL_BUILD is undefined and CONFIG_FOO is set to 'y',
* abc if CONFIG_SPL_BUILD is defined and CONFIG_SPL_FOO is set to 'y',
* abc if CONFIG_TPL_BUILD is defined and CONFIG_TPL_FOO is set to 'y',
* nothing otherwise.
*
* CONFIG_IS_ENABLED(FOO, (abc), (def)) expands to
+ * abc if USE_HOSTCC is defined and CONFIG_HOST_FOO is set to 'y',
* abc if CONFIG_SPL_BUILD is undefined and CONFIG_FOO is set to 'y',
* abc if CONFIG_SPL_BUILD is defined and CONFIG_SPL_FOO is set to 'y',
* abc if CONFIG_TPL_BUILD is defined and CONFIG_TPL_FOO is set to 'y',
--
2.31.1.527.g47e6f16901-goog