u-boot.map is generated automatically by the compiler and more importantly can handle addresses >4GB. --- On Thu, Jul 24, 2014 at 5:14 PM, Chris Packham <judge.pack...@gmail.com> wrote: > Hi Simon, > > On Wed, Jul 23, 2014 at 10:27 PM, Simon Glass <s...@chromium.org> wrote: >> On 22 July 2014 18:08, Chris Packham <judge.pack...@gmail.com> wrote: >>> file_size was being calculated using back-ticks but map_size uses >>> $(shell ...). Update the file_size calculation to use $(shell ...). >>> >>> Signed-off-by: Chris Packham <judge.pack...@gmail.com> >> >> Acked-by: Simon Glass <s...@chromium.org> >> >> But you might want to look at this. >> >> http://patchwork.ozlabs.org/patch/371936/ >> > > Thanks. I've re-submitted a version with Jeroen's change included and > it seems a v2 of his patch is imminent too. Either way I'm not fussed. > > But this has highlighted another issue I'm experiencing related to > this code. Originally I thought it was because I was doing something a > bit weird with a custom u-boot.lds but actually the problem is my > u-boot is setup so that it finishes exactly at the end of a 32bit > address space so _image_binary_end is just off the end of it which > screws up the size calculation. > > $ grep _image_binary_end u-boot.map > 0x0000000100000000 _image_binary_end = . > > $ grep _image_binary_end System.map > 00000000 A _image_binary_end > > $ make binary_size_check > ... > System.map shows a binary size of -4294180864 > but u-boot.bin shows 786432 > make: *** [binary_size_check] Error 1 > > I think it should be possible to change binary_size_check to use > u-boot.map instead of System.map but would that be OK for all > architectures?
Something like this works for me but maybe there is a way to get nm to handle addresses >4GB. Makefile | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index b98a80a..3ed02a4 100644 --- a/Makefile +++ b/Makefile @@ -785,14 +785,15 @@ u-boot.hex u-boot.srec: u-boot FORCE OBJCOPYFLAGS_u-boot.bin := -O binary -binary_size_check: u-boot.bin System.map FORCE +binary_size_check: u-boot.bin FORCE @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ - map_size=$(shell cat System.map | \ + map_size=$(shell cat u-boot.map | \ awk '/_image_copy_start/ {start = $$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 \ if test $$map_size -ne $$file_size; then \ - echo "System.map shows a binary size of $$map_size" >&2 ; \ + echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ echo " but u-boot.bin shows $$file_size" >&2 ; \ exit 1; \ fi \ -- 1.7.9.5 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot