I used --enable-developer and all I got was this lousy build failure ...

[Richard Sharpe]

On Thu, Aug 31, 2023 at 7:59 AM Richard Sharpe
<realrichardsharpe at gmail.com> wrote:
>
> On Thu, Aug 31, 2023 at 6:15 AM Richard Sharpe
> <realrichardsharpe at gmail.com> wrote:
> >
> > Hi folks,
> >
> > I user --enable-developer on configure and then built and got this:
> >
> > --------------------
> > ../../third_party/heimdal/lib/hcrypto/rsa-ltm.c: In function
> > ‘ltm_rsa_public_decrypt’:
> > ../../third_party/heimdal/lib/hcrypto/rsa-ltm.c:261:9: error: ‘size’
> > may be used uninitialized in this function
> > [-Werror=maybe-uninitialized]
> >      size--; p++;
> >      ~~~~^~
> > ../../third_party/heimdal/lib/hcrypto/rsa-ltm.c:262:20: error: ‘p’ may
> > be used uninitialized in this function [-Werror=maybe-uninitialized]
> >      while (size && *p == 0xff) {
> >                     ^~
> > cc1: all warnings being treated as errors
> >
> > ../../third_party/heimdal/lib/hcrypto/bn.c: In function ‘hc_BN_is_bit_set’:
> > ../../third_party/heimdal/lib/hcrypto/bn.c:238:24: warning: cast
> > discards ‘const’ qualifier from pointer target type [-Wcast-qual]
> >      heim_integer *hi = (heim_integer *)bn;
> >                         ^
> > ../../third_party/heimdal/lib/hcrypto/bn.c: In function ‘hc_BN_get_word’:
> > ../../third_party/heimdal/lib/hcrypto/bn.c:309:24: warning: cast
> > discards ‘const’ qualifier from pointer target type [-Wcast-qual]
> >      heim_integer *hi = (heim_integer *)bn;
> > -----------------
> >
> > How do I fix this?
>
> Well, I solved this by just using --address-sanitizer and not using
> --developer, but now I get this:
>
> --------------------
> ==22284==You are trying to dlopen a /usr/lib64/ldb/modules/ldb/asq.so
> shared library with RTLD_DEEPBIND flag which is incompatibe with
> sanitizer runtime (see https://github.com/google/sanitizers/issues/611
> for details). If you want to run /usr/lib64/ldb/modules/ldb/asq.so
> library under sanitizers please remove RTLD_DEEPBIND from dlopen
> flags.
> --------------------
>
> Can I safely remove RTLD_DEEPBIND?

OK, there is an environment variable to set to fix this.

I added it to /etc/sysconfig/samba:

LDB_MODULES_DISABLE_DEEPBIND="false"

And now I get lots of ASAN reports ...

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)(传说杜康是酒的发明者)