illumos gate

Debug build errors with NULL pointer:

    In file included from ../../common/sys/model.h:35:0,
                     from ../../common/sys/file.h:37,
                     from ../../common/io/ecpp.c:35:
    ../../common/io/ecpp.c: In function 'dma8237_dma_start':
    ../../common/io/ecpp.c:5946:34: error: comparison between pointer and integer [-
    Werror]
          pp->dma_cookie.dmac_address != NULL);
                                      ^
    ../../common/sys/debug.h:59:29: note: in definition of macro 'ASSERT'
     #define ASSERT(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
                                 ^~
    ../../common/io/ecpp.c: In function 'x86_dma_start':
    ../../common/io/ecpp.c:6019:34: error: comparison between pointer and integer [-
    Werror]
          pp->dma_cookie.dmac_address != NULL);
                                      ^
    ../../common/sys/debug.h:59:29: note: in definition of macro 'ASSERT'
     #define ASSERT(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
                                 ^~
    cc1: all warnings being treated as errors

commit aba324bf4b916cac0c38f9b340ac55772e882b06
Author: Toomas Soome <tsoome@me.com>
Date:   Sat Apr 27 21:35:36 2019 +0300

    bpf: comparison between pointer and integer

    In file included from ../../common/sys/model.h:35:0,
                     from ../../common/sys/resource.h:221,
                     from ../../common/sys/user.h:73,
                     from ../../common/sys/proc.h:36,
                     from ../../common/sys/systm.h:40,
                     from ../../common/io/bpf/bpf.c:68:
    ../../common/io/bpf/bpf.c: In function 'bpf_attachd':
    ../../common/io/bpf/bpf.c:255:19: error: comparison between pointer and integer
    [-Werror]
      ASSERT(d->bd_bif == NULL);
                       ^
    ../../common/sys/debug.h:59:29: note: in definition of macro 'ASSERT'
     #define ASSERT(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
                                 ^~
    ../../common/io/bpf/bpf.c:256:20: error: comparison between pointer and integer
    [-Werror]
      ASSERT(d->bd_mcip == NULL);
                        ^
    ../../common/sys/debug.h:59:29: note: in definition of macro 'ASSERT'
     #define ASSERT(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
                                 ^~
    cc1: all warnings being treated as errors