[PATCH][gdb/symtab] Handle DW_AT_ranges with DW_FORM_sec_off in partial DIE

[Bernd Edlinger]

On 1/25/21 1:24 PM, Tom de Vries wrote:
> Hi,
> 
> While looking into a failure in gdb.go/package.exp with gcc-11, I noticed that
> gdb shows some complaints when loading the executable (also with gcc-10, where
> the test-case passes):
> ...
> $ gdb -batch -iex "set complaints 100" package.10 -ex start
> During symbol reading: Attribute value is not a constant (DW_FORM_sec_offset)
> Temporary breakpoint 1 at 0x402ae6: file gdb.go/package1.go, line 8.
> During symbol reading: Attribute value is not a constant (DW_FORM_sec_offset)
> During symbol reading: Invalid .debug_rnglists data (no base address)
> ...
> 
> Fix this by using as_unsigned () to read DW_AT_ranges in the partial DIE
> reader, similar to how that is done in dwarf2_get_pc_bounds.
> 
> Tested on x86_64-linux.
> 
> Any comments?
> 

Oh, interesting.

This is exactly what I have posted here:

https://sourceware.org/pipermail/gdb-patches/2021-January/174660.html

but my test case shows the regression in the partial symbols.



Maybe you can take my test case and merge it to your patch?


Thanks
Bernd.
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