RE: [RFA/RFC] blockframe.c Fix errorneous addr check

[Andrew Volkov <Andrew.Volkov@transas.com>]

>On Jun 27, 10:58pm, Andrew Volkov wrote:
>
>> >> 	current_source_end_addr = start_addr + size;
>> >> 
>> >> but must be:
>> >> 
>> >> 	current_source_end_addr = start_addr + size + <addr sizeof>;
>> >> 
>> >> As I understand, since machine address size is not known at 
>> >time of parsing 
>> >> coff file, then we have big trouble :(.
>> >
>> >Could you explain why you need to add in the size of an address?
>> 
>> It's not necessarily must be addr sizeof, it may be 1, but, I think,
>> will be better, if current_source_end_addr will contain correct 
>> value for target.
>
>What I'd like to understand is why (start_addr + size) is insufficient.
>I.e, why do we need to add 1 or some other small value to compute the
>correct ending address?
>
>Kevin

Because start_addr + size is last_addr in block, hence all gdb parts, wich 
assume that highpc is first addr after block, will work improperly. 
Ex. this check always failed:

	if (addr >= lowpc && addr < highpc)
		....

when addr = last_addr_in_block.

While I bump with this problem when work with h8300 coff file.

Andrey