sandbox: Convert SANDBOX_BITS_PER_LONG to Kconfig
Convert SANDBOX_BITS_PER_LONG to Kconfig and assign it a correct
number depending on which host we are going to build and run.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/Kconfig b/arch/sandbox/Kconfig
index 7b07bff..87418e3 100644
--- a/arch/sandbox/Kconfig
+++ b/arch/sandbox/Kconfig
@@ -35,4 +35,9 @@
endchoice
+config SANDBOX_BITS_PER_LONG
+ int
+ default 32 if SANDBOX_32BIT
+ default 64 if SANDBOX_64BIT
+
endmenu
diff --git a/board/sandbox/README.sandbox b/board/sandbox/README.sandbox
index 9dc2eb0..2e2c819 100644
--- a/board/sandbox/README.sandbox
+++ b/board/sandbox/README.sandbox
@@ -24,6 +24,9 @@
CONFIG_SANDBOX_BIG_ENDIAN should be defined when running on big-endian
machines.
+By default sandbox builds and runs on 64-bit hosts. If you are going to build
+and run sandbox on a 32-bit host, select CONFIG_SANDBOX_32BIT.
+
Note that standalone/API support is not available at present.
@@ -44,10 +47,6 @@
make sandbox_defconfig all NO_SDL=1
./u-boot
- If you are building on a 32-bit machine you may get errors from __ffs.h
- about shifting more than the machine word size. Edit the config file
- include/configs/sandbox.h and change CONFIG_SANDBOX_BITS_PER_LONG to 32.
-
U-Boot will start on your computer, showing a sandbox emulation of the serial
console:
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 9ce0c3f..0a9da46 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -1951,7 +1951,6 @@
CONFIG_SAMSUNG_ONENAND
CONFIG_SANDBOX_ARCH
CONFIG_SANDBOX_BIG_ENDIAN
-CONFIG_SANDBOX_BITS_PER_LONG
CONFIG_SANDBOX_SDL
CONFIG_SANDBOX_SPI_MAX_BUS
CONFIG_SANDBOX_SPI_MAX_CS