[PATCH] Makefile: use shell to calculate map_size

[Dragan Simic]

Hello Leon,

On 2024-03-02 14:17, 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>

Please, see a nitpick below.  Otherwise, the patch is looking
good to me.

Reviewed-by: Dragan Simic <dsimic at manjaro.org>

> ---
>  Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 7a3209bd9e..41dc4baad2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1275,9 +1275,9 @@ 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 =
> $$1} END {if (start != "" && end != "") print "ibase=16; "
> toupper(end) " - " toupper(start)}' \
> +		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end =
> $$1} END {if (start != "" && end != "") print "echo $$((0x"
> toupper(end) " - 0x" toupper(start) "))"}' \
>  		| sed 's/0X//g' \
> -		| bc); \
> +		| sh); \

Maybe "sh -s" could be used instead, just for some additional
strictness.

>  	if [ "" != "$$map_size" ]; then \
>  		if test $$map_size -ne $$file_size; then \
>  			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \