Re: [PATCH 5/5] sparse: Add end-to-end compiler shell script

[Pekka Enberg <penberg@kernel.org>]

On 8/22/11 5:51 PM, Jeff Garzik wrote:
> On 08/22/2011 09:57 AM, Pekka Enberg wrote:
>> This patch adds a 'kcc' shell script that combines the sparse's i386 
>> backend
>> with GCC and GNU assembler to make it easier for people to find bugs 
>> in sparse.
>> You can, for example, attempt to build sparse with itself and see it 
>> crash and
>> burn:
>>
>>    make&&  find . -name "*.o" | xargs rm
>>    make CC=./kcc
>>         CC       test-lexing.o
>>    FIXME! no value for symbol preprocess_only.  creating pseudo 1 
>> (stack offset 4)
>>    {standard input}: Assembler messages:
>>    {standard input}:79: Error: operand type mismatch for `mov'
>>    make: *** [test-lexing.o] Error 1
>>
>> Cc: Christopher Li<sparse@chrisli.org>
>> Cc: Jeff Garzik<jgarzik@redhat.com>
>> Cc: Linus Torvalds<torvalds@linux-foundation.org>
>> Signed-off-by: Pekka Enberg<penberg@kernel.org>
>
> For the record, the i386 backend is quite incomplete and awful.
>
> Ideally, an sparse compiler would work from linearized output, not 
> from walking the tree as compile-i386 does.

Christopher, please drop this patch. I'm not planning to continue
hacking on compile-i386.c.

                                     Pekka