Kconfig: Add CONFIG_HASH to enable hashing API
At present CONFIG_CMD_HASH enables the 'hash' command which also brings
in the hashing API. Some boards may wish to enable the API without the
command. Add a separate CONFIG to permit this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index b05e69a..1e3cd02 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -350,6 +350,7 @@
config CMD_CRC32
bool "crc32"
+ select HASH
default y
help
Compute CRC32.
@@ -998,6 +999,7 @@
config CMD_HASH
bool "Support 'hash' command"
+ select HASH
help
This provides a way to hash data in memory using various supported
algorithms (such as SHA1, MD5, CRC32). The computed digest can be
diff --git a/common/Kconfig b/common/Kconfig
index 1879aef..5c39663 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -493,4 +493,16 @@
endmenu
+menu "Security support"
+
+config HASH
+ bool # "Support hashing API (SHA1, SHA256, etc.)"
+ help
+ This provides a way to hash data in memory using various supported
+ algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h
+ and the algorithms it supports are defined in common/hash.c. See
+ also CMD_HASH for command-line access.
+
+endmenu
+
source "common/spl/Kconfig"
diff --git a/common/Makefile b/common/Makefile
index 14d0184..b2d6635 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -10,7 +10,7 @@
obj-y += init/
obj-y += main.o
obj-y += exports.o
-obj-y += hash.o
+obj-$(CONFIG_HASH) += hash.o
obj-$(CONFIG_HUSH_PARSER) += cli_hush.o
obj-$(CONFIG_AUTOBOOT) += autoboot.o
diff --git a/common/hash.c b/common/hash.c
index b645298..a0eded9 100644
--- a/common/hash.c
+++ b/common/hash.c
@@ -473,5 +473,5 @@
return 0;
}
-#endif
-#endif
+#endif /* CONFIG_CMD_HASH || CONFIG_CMD_SHA1SUM || CONFIG_CMD_CRC32) */
+#endif /* !USE_HOSTCC */