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Re: [PATCH] objdump: Handle 32-bit base address in debug_ranges / debug_loc.
- From: Alan Modra <amodra at gmail dot com>
- To: Andrew Burgess <andrew dot burgess at embecosm dot com>
- Cc: binutils at sourceware dot org
- Date: Fri, 27 Nov 2015 13:14:12 +1030
- Subject: Re: [PATCH] objdump: Handle 32-bit base address in debug_ranges / debug_loc.
- Authentication-results: sourceware.org; auth=none
- References: <1448580380-2724-1-git-send-email-andrew dot burgess at embecosm dot com>
On Thu, Nov 26, 2015 at 11:26:20PM +0000, Andrew Burgess wrote:
> binutils/ChangeLog:
>
> * dwarf.c (is_max_address): New function.
> (display_loc_list): Remove out of date comment, use
> is_max_address.
> (display_debug_ranges): Likewise.
>
> binutils/testsuite/ChangeLog:
>
> * binutils-all/objdump.exp: Add test for .debug_ranges decode.
> * binutils-all/dw2-ranges.S: New file.
> * binutils-all/dw2-ranges.W: New file.
OK, but..
> --- /dev/null
> +++ b/binutils/testsuite/binutils-all/dw2-ranges.W
> @@ -0,0 +1,11 @@
> +
> +.*: file format .*
> +
> +Contents of the \.debug_ranges section:
> +
> + Offset Begin End
> + 00000000 ffffffff 0000000(0|4) \(base address\)
> + 00000000 0000000(0|4) 0000000(4|8)
> + 00000000 ffffffff 0000000(0|8) \(base address\)
> + 00000000 0000000(0|8) 0000000(4|c)
> + 00000000 <End of list>
Why allow zero for the base address, and the variant ranges?
--
Alan Modra
Australia Development Lab, IBM