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Date: Thu, 28 Feb 2013 15:40:27 -0800
From: nwmcsween@...il.com
To: "musl@...ts.openwall.com" <musl@...ts.openwall.com>
Subject: Re: is musl run against cppcheck ?
I'd recommend running the clang static analyzer if you can and hosting the resulting web view of it if you can. Iirc the static analyzer found bugs the last time.
Sent from my iPhone
On Feb 28, 2013, at 7:49 AM, John Spencer <maillist-musl@...fooze.de> wrote:
> On 02/28/2013 03:54 PM, Roger Sibert wrote:
>> Hello Everyone,
>>
>> I was just looking at musl to help with static compiled binaries for
>> systems that use CF cards for the base OS, I always run code against
>> cppcheck prior to use so that up front I know what may have to explain
>> to someone.
>>
>> In running against an older version of cppcheck, my main system is
>> being rebuilt and the backup hasnt been upgraded yet, I ran across the
>> following
>>
>> [src/network/getaddrinfo.c:115]: (error) Null pointer dereference
>> [src/network/if_nameindex.c:52]: (error) Memory leak: p
>> [src/thread/sem_open.c:45]: (error) Possible null pointer dereference:
>> semtab - otherwise it is redundant to check if seis null at line 45
>
> if musl deref's a null pointer, it is mostly to conciously cause a crash.
> however, i think it should call a_crash() instead.
>
>> My coding experience is spotty and I know cppcheck can throw false
>> positives so instead of guessing I wanted to see if the musl code had
>> been run through cppcheck.
>
> yes. it was run a couple of time in the past.
> for example this commit here fixed a commit that removed "unused code" wrongly detected by cppcheck.
> http://git.musl-libc.org/cgit/musl/commit/?id=ae4b0b96d63fe3cbd70008350f998570c9e91f7f
>> I ran the below but just filtered out some of the possible/probably
>> false positives, though the ones referring to ccosh.c might be real.
>>
>> /musl# script -c "/root/cppcheck --force --enable=all ."
>> cppcheck-output-musl.txt
>>
>> Thanks,
>> Roger
>
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