[PATCH v3] Makefile: use shell to calculate map_size

[Dragan Simic]

On 2024-03-05 18:15, Dragan Simic wrote:
> On 2024-03-05 17:46, Leon M. Busch-George wrote:
>> From: "Leon M. Busch-George" <leon at georgemail.eu>
>> 
>> The error message "bc: command not found" is easily missed since the
>> build continues.
>> bc is not a part of coreutils or base-devel. POSIX sh can also do the
>> calculation.
>> 
>> Signed-off-by: Leon M. Busch-George <leon at georgemail.eu>

Sorry, I totally missed the v3.  It's still looking good to me, and my
Reviewed-by tag still applies, together with the small nitpick.

>> ---
>>  Makefile | 13 +++++++++----
>>  1 file changed, 9 insertions(+), 4 deletions(-)
>> 
>> diff --git a/Makefile b/Makefile
>> index a2bc9d5903..0aef07ef3b 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -1275,10 +1275,15 @@ OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
>>  binary_size_check: u-boot-nodtb.bin FORCE
>>  	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
>>  	map_size=$(shell cat u-boot.map | \
>> -		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end =
>> $$1} END {if (start != "" && end != "") print "ibase=16; "
>> toupper(end) " - " toupper(start)}' \
>> -		| sed 's/0X//g' \
>> -		| bc); \
>> -	if [ "" != "$$map_size" ]; then \
>> +		awk ' \
>> +			/_image_copy_start/ { start = $$1 } \
>> +			/_image_binary_end/ { end = $$1 } \
>> +			END { \
>> +				if (start != "" && end != "") \
>> +					print end " " start; \
>> +			}' \
>> +		| sh -c 'read end start && echo $$((end - start))'); \
>> +	if [ -n "$$map_size" ]; then \
>>  		if test $$map_size -ne $$file_size; then \
>>  			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
>>  			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \