Initial Spring 2016 commit.

kern/gdbscripts/array

@@ -0,0 +1,79 @@
+# gdb scripts for dumping resizeable arrays.
+#
+# Unfortunately, there does not seem to be a way to do this without
+# cutting and pasting for every type.
+
+define plainarray
+    set $n = $arg0.num
+    set $i = 0
+    printf "%u items\n", $n
+    while ($i < $n)
+	print $arg0.v[$i]
+	set $i++
+    end
+end
+document plainarray
+Print a plain (untyped) resizeable array.
+Usage: plainarray myarray
+end
+
+define array
+    set $n = $arg0.arr.num
+    set $i = 0
+    printf "%u items\n", $n
+    while ($i < $n)
+	print $arg0.arr.v[$i]
+	set $i++
+    end
+end
+document array
+Print the pointers in a typed resizeable array.
+(Use plainarray for an untyped resizeable array.)
+Usage: array allcpus
+end
+
+define cpuarray
+    set $n = $arg0.arr.num
+    set $i = 0
+    printf "%u cpus\n", $n
+    while ($i < $n)
+	printf "cpu %u:\n", $i
+	print *(struct cpu *)($arg0.arr.v[$i])
+	set $i++
+    end
+end
+document cpuarray
+Print an array of struct cpu.
+Usage: cpuarray allcpus
+end
+
+define threadarray
+    set $n = $arg0.arr.num
+    set $i = 0
+    printf "%u threads\n", $n
+    while ($i < $n)
+	printf "thread %u:\n", $i
+	print *(struct thread *)($arg0.arr.v[$i])
+	set $i++
+    end
+end
+document threadarray
+Print an array of struct thread.
+Usage: threadarray curproc->p_threads
+end
+
+define vnodearray
+    set $n = $arg0.arr.num
+    set $i = 0
+    printf "%u vnodes\n", $n
+    while ($i < $n)
+	printf "vnode %u:\n", $i
+	print *(struct vnode *)($arg0.arr.v[$i])
+	set $i++
+    end
+end
+document vnodearray
+Print an array of struct vnode.
+Usage: vnodearray sfs->sfs_vnodes
+end
+