57 /*
  58  * The list of watched areas maps into a list of pages with modified
  59  * protections.  The list is kept sorted by user-level virtual address.
  60  */
  61 typedef struct watched_page {
  62         avl_node_t wp_link;     /* Link in AVL tree */
  63         struct watched_page *wp_list;   /* link in p_wprot */
  64         caddr_t wp_vaddr;       /* virtual address of this page */
  65         uchar_t wp_prot;        /* modified protection bits */
  66         uchar_t wp_oprot;       /* original protection bits */
  67         uchar_t wp_umap[3];     /* reference counts of user pr_mappage()s */
  68         uchar_t wp_kmap[3];     /* reference counts of kernel pr_mappage()s */
  69         ushort_t wp_flags;      /* see below */
  70         short   wp_read;        /* number of WA_READ areas in this page */
  71         short   wp_write;       /* number of WA_WRITE areas in this page */
  72         short   wp_exec;        /* number of WA_EXEC areas in this page */
  73 } watched_page_t;
  74 
  75 /* wp_flags */
  76 #define WP_NOWATCH      0x01    /* protections temporarily restored */
  77 #define WP_SETPROT      0x02    /* SEGOP_SETPROT() needed on this page */
  78 
  79 #ifdef  _KERNEL
  80 
  81 /*
  82  * These functions handle the necessary logic to perform the copy operation
  83  * while ignoring watchpoints.
  84  */
  85 extern int copyin_nowatch(const void *, void *, size_t);
  86 extern int copyout_nowatch(const void *, void *, size_t);
  87 extern int fuword32_nowatch(const void *, uint32_t *);
  88 extern int suword32_nowatch(void *, uint32_t);
  89 #ifdef _LP64
  90 extern int suword64_nowatch(void *, uint64_t);
  91 extern int fuword64_nowatch(const void *, uint64_t *);
  92 #endif
  93 
  94 /*
  95  * Disable watchpoints for a given region of memory.  When bracketed by these
  96  * calls, functions can use copyops and ignore watchpoints.
  97  */

  57 /*
  58  * The list of watched areas maps into a list of pages with modified
  59  * protections.  The list is kept sorted by user-level virtual address.
  60  */
  61 typedef struct watched_page {
  62         avl_node_t wp_link;     /* Link in AVL tree */
  63         struct watched_page *wp_list;   /* link in p_wprot */
  64         caddr_t wp_vaddr;       /* virtual address of this page */
  65         uchar_t wp_prot;        /* modified protection bits */
  66         uchar_t wp_oprot;       /* original protection bits */
  67         uchar_t wp_umap[3];     /* reference counts of user pr_mappage()s */
  68         uchar_t wp_kmap[3];     /* reference counts of kernel pr_mappage()s */
  69         ushort_t wp_flags;      /* see below */
  70         short   wp_read;        /* number of WA_READ areas in this page */
  71         short   wp_write;       /* number of WA_WRITE areas in this page */
  72         short   wp_exec;        /* number of WA_EXEC areas in this page */
  73 } watched_page_t;
  74 
  75 /* wp_flags */
  76 #define WP_NOWATCH      0x01    /* protections temporarily restored */
  77 #define WP_SETPROT      0x02    /* segop_setprot() needed on this page */
  78 
  79 #ifdef  _KERNEL
  80 
  81 /*
  82  * These functions handle the necessary logic to perform the copy operation
  83  * while ignoring watchpoints.
  84  */
  85 extern int copyin_nowatch(const void *, void *, size_t);
  86 extern int copyout_nowatch(const void *, void *, size_t);
  87 extern int fuword32_nowatch(const void *, uint32_t *);
  88 extern int suword32_nowatch(void *, uint32_t);
  89 #ifdef _LP64
  90 extern int suword64_nowatch(void *, uint64_t);
  91 extern int fuword64_nowatch(const void *, uint64_t *);
  92 #endif
  93 
  94 /*
  95  * Disable watchpoints for a given region of memory.  When bracketed by these
  96  * calls, functions can use copyops and ignore watchpoints.
  97  */