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binman: Add a way to enable debugging from the build

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When the build fails due to something wrong in binman it is sometimes
useful to get a full backtrace showing the location of the failure. Add
a BINMAN_DEBUG environment variable to support this along with some
documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2018-11-06 15:21:31 -07:00
parent 048c6e8956
commit a3c005506a
2 changed files with 10 additions and 2 deletions
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6
Makefile
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@ -1048,9 +1048,11 @@ u-boot.ldr: u-boot
# binman # binman
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
# Use 'make BINMAN_DEBUG=1' to enable debugging
quiet_cmd_binman = BINMAN $@ quiet_cmd_binman = BINMAN $@
cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
-I . -I $(srctree)/board/$(BOARDDIR) $< -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
$(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex

6
tools/binman/README
View File

@ -723,6 +723,12 @@ If you need to specify a particular device-tree compiler to use, you can define
the DTC environment variable. This can be useful when the system dtc is too the DTC environment variable. This can be useful when the system dtc is too
old. old.
To enable a full backtrace and other debugging features in binman, pass
BINMAN_DEBUG=1 to your build:
make sandbox_defconfig
make BINMAN_DEBUG=1
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