Create a .cfg file containing the CONFIG options used to build
At present CONFIG options are split across Kconfig and board config headers
files. Also we have multiple files containing these CONFIG options.
In order to see exactly what is being used for building, create a .cfg
file which holds these options as reported by the C preprocessor.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/Makefile b/Makefile
index 0f7d583..01cad3a 100644
--- a/Makefile
+++ b/Makefile
@@ -728,7 +728,7 @@
endif
# Always append ALL so that arch config.mk's can add custom ones
-ALL-y += u-boot.srec u-boot.bin System.map binary_size_check
+ALL-y += u-boot.srec u-boot.bin System.map u-boot.cfg binary_size_check
ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
ifeq ($(CONFIG_SPL_FSL_PBL),y)
@@ -870,6 +870,11 @@
CONFIG_SYS_UBOOT_START := 0
endif
+# Create a file containing the configuration options the image was built with
+quiet_cmd_cpp_cfg = CFG $@
+cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
+ -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
+
MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
@@ -900,6 +905,9 @@
u-boot.dis: u-boot
$(OBJDUMP) -d $< > $@
+u-boot.cfg: include/config.h
+ $(call if_changed,cpp_cfg)
+
ifdef CONFIG_TPL
SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
else