> 2012-05-24 H.J. Lu <hongjiu...@intel.com>
>
> PR bootstrap/53472
> * contrib/compare-debug (remove_comment): New function.
> Remove any .comment sections if the first cmp failed.
Ok.
Paolo
> diff --git a/contrib/compare-debug b/contrib/compare-debug
> index 010d17f..fb8986d 100755
> --- a/contrib/compare-debug
> +++ b/contrib/compare-debug
> @@ -73,11 +73,35 @@ Darwin)
> ;;
> esac
>
> +remove_comment ()
> +{
> + file=$1
> + opts=
> + for s in `objdump --section-headers "$file" | awk '{ print $2 }'`; do
> + case "$s" in
> + .comment*)
> + opts="$opts --remove-section $s"
> + ;;
> + esac
> + done
> + [ -n "$opts" ] && objcopy $opts $file
> +}
> +
> if cmp "$1.$suf1" "$2.$suf2"; then
> status=0
> else
> status=1
>
> + # Remove any .comment sections.
> + if (objcopy -v) 2>&1 | grep ' --remove-section' > /dev/null \
> + && (objdump --help) 2>&1 | grep ' --\[*section-\]*headers' >
> /dev/null; then
> + remove_comment "$1.$suf1"
> + remove_comment "$2.$suf2"
> + if cmp "$1.$suf1" "$2.$suf2"; then
> + status=0
> + fi
> + fi
> +
> # Assembler-generated CFI will add an .eh_frame section for -g not
> # present in -g0. Try to cope with it by checking that an .eh_frame
> # section is present in either object file, and then stripping it
>
