• Week 1 (PDF) (May 17, 2024) - gdb, warmup #1

  Demo (for live discussion section):

  • linux-demo.txt
  • hello.c
  • crash.c
  • gdb-demo.txt

• Week 2 (PDF) (May 24, 2024) - warmup #1 (part 2)
• Week 3 (PDF) (May 31, 2024) - warmup #2
• Week 4 (Jun 6, 2024) - warmup #2 (part 1 PDF), introduction to kernel assignments (part 2 PDF) (part 3 PDF)

  Code in slides for warmup #2:

  • defs.h
  • fork-wait.c
  • cat.c
  • redirect.c
  • thr-term.c
  • busywait.c
  • join.c
  • deadlock.c
  • trylock.c
  • whoopee.c
  • status-update.c
  • sigblock.c
  • sigwait.c
  • direct.c
  • cancel.c
  • three-threads.c

• Week 5 (PDF) (Jun 14, 2024) - kernel 1, kmain.c, kmain_aux.c

  Code in slides:

  • kmain.c
  • kmain_aux.c

• Week 6 (PDF) (Jun 21, 2024) - more on kernel 1

  Code in slides:

  • faber_test.c

• Week 7 (Jun 28, 2024)
  • (part 1 PDF) - kernel 2
  • (part 2 TXT) - kernel 2 polymorphism, vfs.c, vnode.c, vn_special.c, file.c, vfs_syscall.c, vn_mmobj_ops.c, ramfs.c, vfstest.c, faber_fs_test

  Code (kernel):

  • namev.c (path name resolution code)
  • vfs.c
  • vnode.c
  • vn_special.c
  • file.c
  • vfs_syscall.c
  • vn_mmobj_ops.c
  • ramfs.c (also look for any "_ops_t" in "kernel/include/fs/*.h", "kernel/fs/*.c" and "kernel/fs/ramfs/*.c")
  • vfstest.c
  • faber_fs_test.c

• Week 8 (Jul 5, 2024)
  • (part 1 PDF) - introduction to kernel 3, the elf32 loader
  • (part 2 PDF) - more on kernel 3, address space implementation (vmarea, mmobj, pframe, page table)

  Code (kernel):

  • elf32.c - the elf32 loader
  • exec.c
  • access.c
  • vn_mmobj_ops.c - code for the mmobj inside a vnode
  • syscall.c (in the kernel)

  
  Code (user):

  • syscall.c (in the libc user space library)

  
  Kernel 3 FAQ:

  • meaning of pagenum

• Week 9 (TXT) (Jul 12, 2024) - objdump, page fault handling, hello

  Code (kernel):

  • pagefault.c
  • syscall.c (in the kernel)
  • vn_mmobj_ops.c - code for the mmobj inside a vnode

  
  Code (user):

  • hello.c
  • syscall.c (in the libc user space library)

  
  Kernel 3 FAQ:

  • handle the first page fault
  • meaning of pagenum
  • page faults

  
  Useful Linux commands:

      objdump --disassemble --section=".text" user/usr/bin/hello.exec
      objdump --disassemble --section=".text" -S user/usr/bin/hello.exec
      objdump --headers user/usr/bin/hello.exec
      xxd -g 1 user/usr/bin/hello.exec

  Useful GDB commands:

      add-symbol-file user/usr/bin/hello.exec 0x08048094
      b __libc_static_entry
      b main
      b *0x12345678
      layout asm
      layout next
      si
      info registers
      kernel info vmmap_mapping_info curproc->p_vmmap

• Week 10 (TXT) (Jul 19, 2024) - fork(), user space shell

  Code (user):

  • fork-and-wait.c
  • /sbin/init.c

  
  Kernel 3 FAQ:

  • do_fork()
  • "/sbin/init" not working

  Remaining user space programs:

  Code (user):

  • memtest.c
  • eatmem.c
  • forkbomb.c

  
  Kernel 3 FAQ:

  • dynamic region and do_brk()
  • make forkbomb run forever

• Week 11 (Jul 26, 2024) - (no discussion section this week)

Week #		Quiz #		Dates		Coverage/Focus
1		Quiz 0		5/17		Discussion 1, Lecture 1, Lecture 2part1
2		Quiz 1		5/24		Discussion 2, Lectures 2part2, 3, 4, & 5part1
3		Quiz 2		5/31		Discussion 3, Lectures 5part2, 6, 7, & 8part1
4		Quiz 3		6/7		Discussions 4 & 5, Lectures 8part2, 9, 10, & 11
5		Quiz 4		6/14		Discussion 6, Lectures 12, 13, & 14
6		Quiz 5		6/21		Discussion 7, Lectures 15, 16, & 17
7		Quiz 6		6/28		Discussions 8 & 9, Lectures 18, 19, & 20
8		-		7/5		no quiz (midterm on Tue)
9		Quiz 7		7/12		Discussions 10, 11 & 12, Lectures 21, 22, 23, 24, & 25part1
10		Quiz 8		7/19		Discussion 13, Lectures 25part2, 26, 27, & 28part1
11		-		7/26		no quiz