Re: [PATCH] kbuild: correct size calculation of bzImgae / fix x86 boot
From: Andreas Schwab
Date: Mon Dec 21 2009 - 08:50:20 EST
Michal Marek <mmarek@xxxxxxx> writes:
> Andreas Schwab napsal(a):
>> Does dash's printf support %b? Then this should work.
>
> Good idea. %b is specified by posix, so there is hope :).
Actually you don't need it anyway. (Still untested though.)
Andreas.
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index cd815ac..7173c0c 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -213,14 +213,16 @@ cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -f -9 > $@) || \
# Bzip2 and LZMA do not include size in file... so we have to fake that;
# append the size as a 32-bit littleendian number as gzip does.
-size_append = printf $(shell \
+size_append = printf $$( \
dec_size=0; \
for F in $1; do \
fsize=$$(stat -c "%s" $$F); \
dec_size=$$(expr $$dec_size + $$fsize); \
done; \
-printf "%08x" $$dec_size | \
- sed 's/\(..\)\(..\)\(..\)\(..\)/\\\\x\4\\\\x\3\\\\x\2\\\\x\1/g' \
+for i in 1 2 3 4; do \
+ printf '\\%03o' $$(expr $$dec_size % 256); \
+ dec_size=$$(expr $$dec_size / 256); \
+done \
)
quiet_cmd_bzip2 = BZIP2 $@
--
Andreas Schwab, schwab@xxxxxxxxxxxxxx
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"And now for something completely different."
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