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-rw-r--r--usr.bin/vi/docs/internals/gdb.script68
1 files changed, 68 insertions, 0 deletions
diff --git a/usr.bin/vi/docs/internals/gdb.script b/usr.bin/vi/docs/internals/gdb.script
new file mode 100644
index 000000000000..5f180edcd642
--- /dev/null
+++ b/usr.bin/vi/docs/internals/gdb.script
@@ -0,0 +1,68 @@
+# @(#)gdb.script 8.2 (Berkeley) 9/29/93
+
+# display the SVI screen map
+# usage dmap(sp)
+define dmap
+ set $h = ((SVI_PRIVATE *)$arg0->svi_private)->h_smap
+ set $t = ((SVI_PRIVATE *)$arg0->svi_private)->t_smap
+ while ($h <= $t)
+ printf "lno: %d; off %d ", (int)$h->lno, (int)$h->off
+ if ($h->c_ecsize == 0)
+ printf "flushed\n"
+ else
+ printf "\n\tsboff %d; scoff %d\n", \
+ (int)$h->c_sboff, (int)$h->c_scoff
+ printf "\teboff %d; eclen %d; ecsize %d\n", \
+ (int)$h->c_eboff, (int)$h->c_eclen, \
+ (int)$h->c_ecsize
+ end
+ set $h = $h + 1
+ end
+end
+
+# display the tail of the SVI screen map
+define tmap
+ set $h = ((SVI_PRIVATE *)$arg0->svi_private)->h_smap
+ set $t = ((SVI_PRIVATE *)$arg0->svi_private)->t_smap
+ while ($t >= $h)
+ printf "lno: %d; off %d ", (int)$t->lno, (int)$t->off
+ if ($t->c_ecsize == 0)
+ printf "flushed\n"
+ else
+ printf "\n\tsboff %d; scoff %d\n", \
+ (int)$t->c_sboff, (int)$t->c_scoff
+ printf "\teboff %d; eclen %d; ecsize %d\n", \
+ (int)$t->c_eboff, (int)$t->c_eclen, \
+ (int)$t->c_ecsize
+ end
+ set $t = $t - 1
+ end
+end
+
+# display the SVI private structure
+define svp
+ print *((SVI_PRIVATE *)sp->svi_private)
+end
+
+# display the marks
+define markp
+ set $h = sp->ep->marks.next
+ set $t = &sp->ep->marks
+ while ($h != 0 && $h != $t)
+ printf "key %c lno: %d cno: %d flags: %x\n", \
+ ((MARK *)$h)->name, ((MARK *)$h)->lno, \
+ ((MARK *)$h)->cno, ((MARK *)$h)->flags
+ set $h = ((MARK *)$h)->next
+ end
+end
+
+# display the tags
+define tagp
+ set $h = sp->taghdr.next
+ set $t = &sp->taghdr
+ while ($h != 0 && $h != $t)
+ printf "tag: %s lno %d cno %d\n", ((TAG *)$h)->frp->fname, \
+ ((TAG *)$h)->lno, ((TAG *)$h)->cno
+ set $h= ((TAG *)$h)->next
+ end
+end