Lab-2 Schedulers: MLFQ + Lottery

lab-2/.cvsignore

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+*.asm
+*.d
+*.sym
+_*
+kernel
+user1
+userfs
+usertests
+xv6.img
+vectors.S
+bochsout.txt
+bootblock
+bootother
+bootother.out
+parport.out
+fmt

lab-2/.dir-locals.el

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+((c-mode
+  (indent-tabs-mode . nil)
+  (c-file-style . "bsd")
+  (c-basic-offset . 2)))

lab-2/.gdbinit.tmpl

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+set $lastcs = -1
+
+define hook-stop
+  # There doesn't seem to be a good way to detect if we're in 16- or
+  # 32-bit mode, but in 32-bit mode we always run with CS == 8 in the
+  # kernel and CS == 35 in user space
+  if $cs == 8 || $cs == 35
+    if $lastcs != 8 && $lastcs != 35
+      set architecture i386
+    end
+    x/i $pc
+  else
+    if $lastcs == -1 || $lastcs == 8 || $lastcs == 35
+      set architecture i8086
+    end
+    # Translate the segment:offset into a physical address
+    printf "[%4x:%4x] ", $cs, $eip
+    x/i $cs*16+$eip
+  end
+  set $lastcs = $cs
+end
+
+echo + target remote localhost:1234\n
+target remote localhost:1234
+
+echo + symbol-file kernel\n
+symbol-file kernel

lab-2/.gitignore

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+*~
+_*
+*.o
+*.d
+*.asm
+*.sym
+*.img
+vectors.S
+bootblock
+entryother
+initcode
+initcode.out
+kernel
+kernelmemfs
+mkfs
+.gdbinit

lab-2/.vscode/c_cpp_properties.json

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+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "includePath": [
+                "${workspaceFolder}/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "c17",
+            "cppStandard": "gnu++17",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}

lab-2/.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "C_Cpp.errorSquiggles": "disabled",
+    "files.associations": {
+        "stat.h": "c"
+    }
+}

lab-2/BUGS

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+formatting:
+	need to fix PAGEBREAK mechanism
+
+sh:
+	can't always runcmd in child -- breaks cd.
+	maybe should hard-code PATH=/ ?
+

lab-2/LICENSE

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+The xv6 software is:
+
+Copyright (c) 2006-2018 Frans Kaashoek, Robert Morris, Russ Cox,
+                        Massachusetts Institute of Technology
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+