const-ify make segment ops structures
There is no reason to keep the segment ops structures writable.
patch lower-case-segops

*** 1481,1491 ****
                   * care about the actual size of the segment so we use the
                   * reserved size. If the segment's size is zero, there's
                   * something fishy going on so we ignore this segment.
                   */
                  if (seg->s_ops != &segvn_ops ||
!                     SEGOP_GETVP(seg, seg->s_base, &mvp) != 0 ||
                      mvp == lastvp || mvp == NULL || mvp->v_type != VREG ||
                      (segsize = pr_getsegsize(seg, 1)) == 0)
                          continue;
  
                  eaddr = saddr + segsize;
--- 1481,1491 ----
                   * care about the actual size of the segment so we use the
                   * reserved size. If the segment's size is zero, there's
                   * something fishy going on so we ignore this segment.
                   */
                  if (seg->s_ops != &segvn_ops ||
!                     segop_getvp(seg, seg->s_base, &mvp) != 0 ||
                      mvp == lastvp || mvp == NULL || mvp->v_type != VREG ||
                      (segsize = pr_getsegsize(seg, 1)) == 0)
                          continue;
  
                  eaddr = saddr + segsize;
*** 1883,1893 ****
          i = 2;
          for (seg = AS_SEGFIRST(as); seg != NULL; seg = AS_SEGNEXT(as, seg)) {
                  caddr_t eaddr = seg->s_base + pr_getsegsize(seg, 0);
                  caddr_t saddr, naddr;
                  void *tmp = NULL;
!                 extern struct seg_ops segspt_shmops;
  
                  for (saddr = seg->s_base; saddr < eaddr; saddr = naddr) {
                          uint_t prot;
                          size_t size;
                          int type;
--- 1883,1893 ----
          i = 2;
          for (seg = AS_SEGFIRST(as); seg != NULL; seg = AS_SEGNEXT(as, seg)) {
                  caddr_t eaddr = seg->s_base + pr_getsegsize(seg, 0);
                  caddr_t saddr, naddr;
                  void *tmp = NULL;
!                 extern const struct seg_ops segspt_shmops;
  
                  for (saddr = seg->s_base; saddr < eaddr; saddr = naddr) {
                          uint_t prot;
                          size_t size;
                          int type;
*** 1912,1922 ****
                                  v[i].p_flags |= PF_X;
  
                          /*
                           * Figure out which mappings to include in the core.
                           */
!                         type = SEGOP_GETTYPE(seg, saddr);
  
                          if (saddr == stkbase && size == stksize) {
                                  if (!(content & CC_CONTENT_STACK))
                                          goto exclude;
  
--- 1912,1922 ----
                                  v[i].p_flags |= PF_X;
  
                          /*
                           * Figure out which mappings to include in the core.
                           */
!                         type = segop_gettype(seg, saddr);
  
                          if (saddr == stkbase && size == stksize) {
                                  if (!(content & CC_CONTENT_STACK))
                                          goto exclude;
  
*** 1939,1960 ****
                          } else if (type & MAP_SHARED) {
                                  if (shmgetid(p, saddr) != SHMID_NONE) {
                                          if (!(content & CC_CONTENT_SHM))
                                                  goto exclude;
  
!                                 } else if (SEGOP_GETVP(seg, seg->s_base,
                                      &mvp) != 0 || mvp == NULL ||
                                      mvp->v_type != VREG) {
                                          if (!(content & CC_CONTENT_SHANON))
                                                  goto exclude;
  
                                  } else {
                                          if (!(content & CC_CONTENT_SHFILE))
                                                  goto exclude;
                                  }
  
!                         } else if (SEGOP_GETVP(seg, seg->s_base, &mvp) != 0 ||
                              mvp == NULL || mvp->v_type != VREG) {
                                  if (!(content & CC_CONTENT_ANON))
                                          goto exclude;
  
                          } else if (prot == (PROT_READ | PROT_EXEC)) {
--- 1939,1960 ----
                          } else if (type & MAP_SHARED) {
                                  if (shmgetid(p, saddr) != SHMID_NONE) {
                                          if (!(content & CC_CONTENT_SHM))
                                                  goto exclude;
  
!                                 } else if (segop_getvp(seg, seg->s_base,
                                      &mvp) != 0 || mvp == NULL ||
                                      mvp->v_type != VREG) {
                                          if (!(content & CC_CONTENT_SHANON))
                                                  goto exclude;
  
                                  } else {
                                          if (!(content & CC_CONTENT_SHFILE))
                                                  goto exclude;
                                  }
  
!                         } else if (segop_getvp(seg, seg->s_base, &mvp) != 0 ||
                              mvp == NULL || mvp->v_type != VREG) {
                                  if (!(content & CC_CONTENT_ANON))
                                          goto exclude;
  
                          } else if (prot == (PROT_READ | PROT_EXEC)) {