On Fri, 27 May 2022 15:15:21 +0800 menglong8.dong@xxxxxxxxx wrote:
> +clean-files := dropreason_str.h
> +
> +quiet_cmd_dropreason_str = GEN $@
> +cmd_dropreason_str = echo '\n\#define __DEFINE_SKB_DROP_REASON(FN) \' > $@;\
echo -n
> + sed -e '/enum skb_drop_reason {/,/}/!d' $< | \
> + awk -F ',' '/SKB_DROP_REASON_/{printf " FN(%s) \\\n", substr($$1, 18)}' >> $@;\
> + echo '' >> $@
Trying to figure out when we're in the enum could be more robust
in case more stuff gets added to the header:
| awk -F ',' '/^enum skb_drop/ { dr=1; }
/\}\;/ { dr=0; }
/^\tSKB_DROP/ { if (dr) {print $1;}}'
> +$(obj)/dropreason_str.h: $(srctree)/include/linux/dropreason.h
> + $(call cmd,dropreason_str)
> +
> +$(obj)/skbuff.o: $(obj)/dropreason_str.h
Since we just generate the array directly now should we generate
a source file with it directly instead of generating a header with
the huge define?
