[PATCH] Handle GNU extension opcodes in dwarf_getlocation
Petr Machata
pmachata at redhat.com
Wed Oct 10 06:56:16 UTC 2012
Jan Kratochvil <jan.kratochvil at redhat.com> writes:
> On Tue, 09 Oct 2012 22:50:20 +0200, Petr Machata wrote:
>> Mark Wielaard <mjw at redhat.com> writes:
>> > Do you happen to know where
>> > DW_OP_GNU_reinterpret is described, I assumed it was part of
>> > http://www.dwarfstd.org/doc/040408.1.html but it isn't in there.
>>
>> No, it isn't, I didn't find it anywhere else but in elfutils. It's not
>> even in my test binary, only DW_OP_GNU_convert is.
>
> DW_OP_GNU_convert is handled by GDB:
As well as DW_OP_GNU_reinterpret, great:
.byte 0xf7 # DW_OP_GNU_convert
.uleb128 0x29
.byte 0xf9 # DW_OP_GNU_reinterpret
.uleb128 0x37
So yeah, they both have the same arguments.
Thanks,
PM
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