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| author | Vadim Bendebury <vbendeb@chromium.org> | 2018-04-26 11:41:42 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-05-14 12:28:05 -0700 |
| commit | 361f3a74ba1112683b1c3acb50ea2ad9b29f090f (patch) | |
| tree | af6099f490e0195a1638e6f44611e570a0774362 /Makefile.rules | |
| parent | 69d0740bd451a3bc0759a644e21b6844fe6d829c (diff) | |
| download | chrome-ec-361f3a74ba1112683b1c3acb50ea2ad9b29f090f.tar.gz | |
make: add size calculations
Room remaining in flash is an ever important property of many EC
images. This patch adds a makefile rule with will calculate how much
free room is left in the RW partition with the current image.
The calculation uses two variables set by the linker: 'FLASH' which
shows how much room is allocated to the image and '__image_size' which
shows how much room is actually taken. The difference is how much room
is still available.
Wnen building with V=0, size is not reported.
BRANCH=cr50, cr50-mp
BUG=b:65253310
TEST=observed reported values:
$ make BOARD=cr50 -j
...
*** 7864 bytes still available in flash on cr50 ****
$ rm -rf build/cr50/
$ make BOARD=cr50 CR50_DEV=1 -j
*** 4488 bytes still available in flash on cr50 ****
Change-Id: I66e23dc72905988b21666c5dc9608d92e3fead50
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1030909
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'Makefile.rules')
| -rw-r--r-- | Makefile.rules | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Makefile.rules b/Makefile.rules index 442a71861e..a46006c51e 100644 --- a/Makefile.rules +++ b/Makefile.rules @@ -271,6 +271,20 @@ cmd_lcov=flock /tmp/ec-lcov-lock -c "lcov -q -o $@ -c -d build/host/$*" cmd_report_cov=genhtml -q -o build/host/coverage_rpt -t \ "EC Unittest "$(bldversion) $^ +# Unless V is set to 0 we always want the 'size:' target to report its output, +# there is no point in generating a short form command trace when calculating +# size. +ifeq ($(V),0) +cmd_size= +else +cmd_size=$(Q)awk '\ + /__image_size =/ {image_size = strtonum($$1)} \ + /^FLASH/ {flash_size = strtonum($$3)} \ + END {room_left = flash_size - image_size; \ + printf (" *** %s bytes still available in flash on $(BOARD) ****\n", \ + room_left)}' $(out)/RW/$(PROJECT).RW.map +endif + build/host/%.info: run-% $(call quiet,lcov,COV ) @@ -594,6 +608,11 @@ analyzestack: $(out)/util/export_taskinfo.so --annotation $(ANNOTATION) \ --export_taskinfo "$$EXPORT_TASKINFO" "$$ELF" +# Calculate size of remaining room in flash, using variables generated by +# linker. +size: $(out)/$(PROJECT).bin + $(call cmd_size) + .SECONDARY: -include $(deps) |