Operating System BUAA 2021

• Operating-System-BUAA-2021
  • Written in front?
  • Task List ✔
  • Past code?
  • Code analysis and thinking questions?
  • Juice entrance?
  • References
  • Acknowledgements ❤️

Operating-System-BUAA-2021

keywords: BUAA OS 2021 Beijing University of Aeronautics and Astronautics 6th Department Computer Operating System 2021

2021 Spring Beihang Operating System

Written in front?

This repo does not provide code because there are too many wheels on the network, only recording study notes and content on the computer.

Welcome to fork&pull request.

Task List ✔

If you feel the need to conduct a comprehensive check of the entire lab, these task lists can be convenient for you to compare one by one. Of course, you can use base64 to get your repo locally and then use professional comparison software (Beyond Compare) for comparison.

lab1

1. Please modify include.mk
2. Complete readelf/readelf.c
3. Fill in the vacant part in tools/scse0_3.lds and adjust the kernel to the correct position.
4. Complete boot/start.S
5. Complete lib/print.c: lp_Print()

lab2

1. Complete include/queue.h: LIST_INSERT_AFTER(), LIST_INSERT_TAIL()
2. Complete mm/pamp.c: mips_detect_memory()
3. Complete mm/pamp.c: page_init()
4. Complete mm/pamp.c: page_alloc, page_free()
5. Complete mm/pamp.c: boot_pgdir_walk, pgdir_walk()
6. Implement mm/pamp.c: boot_map_ segment()
7. Complete mm/pamp.c: page_insert()
8. Complete mm/tlb_asm.S: tlb_out()

lab3

1. mm/pmap.c: mips_vm_init()
2. lib/env.c: env_init()
3. lib/env.c: envid2env()
4. lib/env.c: env_setup_vm()
5. lib/env.c: env_alloc()
6. lib/env.c: load_icode_mapper()
7. lib/kernel_elfloader.c: load_elf() and lib/env.c: load_icode()
8. lib/env.c: env_create(), env_create_priority()
9. Complete init/init.c
10. lib/env.c: env_run()
11. Complete boot/start.S
12. tools/scse0_3.lds
13. lib/kclock.c: kclock_init()
14. lib/sched.c: sched_yield()

lab4

1. Complete user/syscall_wrap.S: msyscall()
2. Complete lib/syscall.S: handle_sys()
3. Implement lib/syscall_all.c: sys__mem_alloc()
4. Implement lib/syscall_all.c: sys_mem_map()
5. Implement lib/syscall_all.c: sys_mem_unmap()
6. Implement lib/syscall_all.c: sys_yield()
7. Implement lib/syscall_all.c: sys_ipc_recv(), sys_ipc_can_send()
8. Fill in lib/syscall_all.c: sys_env_alloc()
9. Fill in user/fork.c: fork() about sys_env_alloc and the "subprocess" execution part
10. Fill in user/fork.c: duppage()
11. Complete lib/traps.c: page_fault_handler()
12. Complete lib/syscall_all.c: sys_set_pgfault_handler()
13. Fill in user/fork.c: pgfault()
14. Fill in lib/syscall_all.c: sys_set_env_status()
15. Fill in user/fork.c: fork() on the execution of "parent process"

lab5

1. Complete sys_write_dev(), sys_read_dev() ; complete the interface of the corresponding system call in user/lib.h, user/syscall_lib.c .
2. Complete fs/ide.c: ide_write(), ide_read()
3. Complete fs/fs.c: free_block()
4. Complete fs/fsformat.c: create_file()
5. Complete fs/fs.c: diskaddr()
6. Implement map_block(), unmap_block()
7. Complete fs.c: dir_lookup()
8. Complete user/file.c: open()
9. Complete user/fd.c: read()
10. Complete user/fsipc.c: fsipc_remove() , user/file.c: remove() , fs/serv.c: serve_remove()

lab6

1. Modify user/fork.c: duppage()
2. Fill in user/pipe.c: piperead(), pipewrite(), _pipeisclosed()
3. Modify user/pipe.c: pipeclose() and user/fd.c: dup()
4. Modify user/pipe.c: _pipeisclosed()
5. Complete user/spawn.c: spawn(), usr_load_elf()
6. Complete user/sh.c: runcmd()

Challenging mission?

lab4_challenge-semaphore implementation-lpxofbuaa

lab5_challenge-Memory Protection-VOIDMalkuth

Past code?

Because the course requirements may change every year, try to look at the code that is closer.

The code of senior login256 may not be fully applicable to the course requirements of spring 2020, and it has been a beginning in the process scheduling of lab3.

2020 Spring-refkxh code

2020 Spring-C7ABT Code

2019 Spring-login256 code

Spring 2019 - Eadral's code

Code analysis and thinking questions?

lab1~6 experimental report-shh

lab1~6 experimental report-VOIDMalkuth

lab1~6 experimental report-hky1999

lab1

lab1 thinking questions answers-moc-85422729

lab1 thinking questions answers-Suxy-99

lab2

lab2-code_view-riyuejiuzhao

Lab2-code_view-littlenyima

lab2 thinking questions answers-moc-85422729

lab2 thinking questions answers-Suxy-99

lab3

lab3-code_view-riyuejiuzhao

lab3-code_view-FFChyan

lab3-code_view-SivilTaram

lab3-code_view-CindyZhou

lab3-code_view-puublog

lab3 thinking questions answers-blshuidi

lab3 thinking questions answers-moc-85422729

lab3 thinking questions answers-Suxy-99

lab4

lab4-code_view-FFChyan

lab4-code_view-Nortonary

lab4-code_view-CindyZhou

lab4-code_view-sharinka0715

lab4-code_view-SivilTaram

lab4-code_view-p_wk

lab4-Thinkings-Suxy-99

lab4-Thinkings-blshuidi

lab5

lab5-code_view-Nortonary

lab5-Thinkings-blshuidi

lab6

It's a pigeon

Juice entrance?

2021 Spring - Exercise Summary - rfhits

2017 Spring - Partial answers to midterm exam papers-super_dmz

2019 Spring - Course Notes - Jay1Zhang

References

Compilation linking principle

Redirection of input and output under linux

The GCC compiler in Linux runs the first program "Helloworld!"

How to write Makefile-bilibili-Lighting of Lanterns in the first lunar month

Acknowledgements ❤️

Thank you to all the teachers, teaching assistants, seniors and bigwigs who provide information and devote themselves to this course!