Makefile: preserve output for images that can contain HAB Blocks

To being able to sign created binaries, we need to know the HAB Blocks
for that image. Especially for the imximage type the HAB Blocks are
only available during creation of the image. We want to preserve the
information until we get to sign the files.
In the verbose case we still get them printed out instead of writing
to log files.

Cc: sbabic@denx.de

v2-Changes:
 - No usage of MKIMAGEOUTPUT_$(@F) macro.
 - Predefine default value /dev/null in every involved Makefile.

Signed-off-by: Sven Ebenfeld <sven.ebenfeld@gmail.com>
Reviewed-by: George McCollister <george.mccollister@gmail.com>
Tested-by: George McCollister <george.mccollister@gmail.com>

6 files changed, 17 insertions, 5 deletions

diff --git a/.gitignore b/.gitignore
index 33abbd3..7fac5b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,7 +31,7 @@
 # Top-level generic files
 #
 /MLO*
-/SPL
+/SPL*
 /System.map
 /u-boot*
 /boards.cfg
diff --git a/Makefile b/Makefile
index ecd824d..72ab5c0 100644
--- a/Makefile
+++ b/Makefile
@@ -813,9 +813,11 @@ cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 quiet_cmd_efipayload = OBJCOPY $@
 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 
+MKIMAGEOUTPUT ?= /dev/null
+
 quiet_cmd_mkimage = MKIMAGE $@
 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
-	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
+	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
 
 quiet_cmd_cat = CAT     $@
 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
@@ -945,6 +947,8 @@ MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
+u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
+CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
 endif
 
 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile
index 03b3c12..da53f62 100644
--- a/arch/arm/imx-common/Makefile
+++ b/arch/arm/imx-common/Makefile
@@ -68,6 +68,7 @@ $(IMX_CONFIG): %.cfgtmp: % FORCE
 
 MKIMAGEFLAGS_u-boot.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) -T imximage \
 	-e $(CONFIG_SYS_TEXT_BASE)
+u-boot.imx: MKIMAGEOUTPUT = u-boot.imx.log
 
 u-boot.imx: u-boot.bin $(IMX_CONFIG) $(PLUGIN).bin FORCE
 	$(call if_changed,mkimage)
@@ -75,6 +76,7 @@ u-boot.imx: u-boot.bin $(IMX_CONFIG) $(PLUGIN).bin FORCE
 ifeq ($(CONFIG_OF_SEPARATE),y)
 MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) -T imximage \
 	-e $(CONFIG_SYS_TEXT_BASE)
+u-boot-dtb.imx: MKIMAGEOUTPUT = u-boot-dtb.imx.log
 
 u-boot-dtb.imx: u-boot-dtb.bin $(IMX_CONFIG) $(PLUGIN).bin FORCE
 	$(call if_changed,mkimage)
@@ -83,6 +85,8 @@ endif
 MKIMAGEFLAGS_SPL = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) -T imximage \
 	-e $(CONFIG_SPL_TEXT_BASE)
 
+SPL: MKIMAGEOUTPUT = SPL.log
+
 SPL: spl/u-boot-spl.bin $(IMX_CONFIG) $(PLUGIN).bin FORCE
 	$(call if_changed,mkimage)
 
diff --git a/doc/README.imx6 b/doc/README.imx6
index add1d80..0e00968 100644
--- a/doc/README.imx6
+++ b/doc/README.imx6
@@ -150,7 +150,8 @@ CONFIG_SECURE_BOOT is needed to build those two binaries.
 After building, you need to create a command sequence file and use
 Freescales Code Signing Tool to sign both binaries. After creation,
 the mkimage tool outputs the required information about the HAB Blocks
-parameter for the CSF.
+parameter for the CSF. During the build, the information is preserved
+in log files named as the binaries. (SPL.log and u-boot-ivt.log).
 
 More information about the CSF and HAB can be found in the AN4581.
 https://cache.freescale.com/files/32bit/doc/app_note/AN4581.pdf
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 348de2d..13c975b 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -487,6 +487,7 @@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
 #
 # mkimage
 # ---------------------------------------------------------------------------
+MKIMAGEOUTPUT ?= /dev/null
 quiet_cmd_mkimage = MKIMAGE $@
 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
-	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
+	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index f379713..c962bbc 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -119,9 +119,11 @@ LDPPFLAGS += \
 	$(shell $(LD) --version | \
 	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 
+MKIMAGEOUTPUT ?= /dev/null
+
 quiet_cmd_mkimage = MKIMAGE $@
 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
-	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
+	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
 
 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)