Imbus/xv6-riscv-kernel
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Author SHA1 Message Date
Frans Kaashoek
93ca5550b8
Merge pull request #10 from takahirox/VirtioInterruptAck 
Write virtio interrupt ack register in virtio_disk_intr()
 2020-08-10 13:24:57 -04:00
Frans Kaashoek
12c131de3e
Merge pull request #8 from rui314/cat-fix 
cat should exit normally if reading from stdin
 2020-08-10 13:14:41 -04:00
Frans Kaashoek
d28c5d9837
Merge pull request #6 from jrrk2/riscv 
Update ramdisk.c
 2020-08-10 13:14:14 -04:00
Frans Kaashoek
6b593b9eae
Merge pull request #4 from 4ge32/riscv 
Fix minor typos
 2020-08-10 13:05:28 -04:00
Frans Kaashoek
c31d35d803
Merge branch 'riscv' into riscv 2020-08-10 13:05:17 -04:00
Robert Morris
d8fe1773b2 test string system call arguments that cross over the end of the last page. 2020-08-10 11:19:10 -04:00
Robert Morris
76d6c57ede test copyinstr()'s handling of the terminating null 2020-08-10 11:19:10 -04:00
Robert Morris
e3b7058907 streamline copyin/copyout code in usertests 
fix bugs in read/write return values when there's an error
 2020-08-10 11:19:10 -04:00
Robert Morris
a93321cb25 test pointer checking in copyin, copyout, copyinstr 2020-08-10 11:19:10 -04:00
Frans Kaashoek
1f555198d6 Change tf -> trapframe in a few comments 2020-08-10 11:19:10 -04:00
Robert Morris
7f35d7a14e modify each page in usertests countfree() 
get rid of static for walk() and freewalk()
 2020-08-10 11:19:10 -04:00
Robert Morris
2ae9c8e272 defines for UART register bits 2020-08-10 11:19:10 -04:00
Robert Morris
0f50e9527c fix printf() in interrupts 2020-08-10 11:19:10 -04:00
Robert Morris
27057bc9b4 interrupt-driven uart output, hopefully a nice example for teaching. 2020-08-10 11:19:10 -04:00
Robert Morris
1e72d5ca08 cpu->scheduler -> cpu->context to reduce confusion 2020-08-10 11:19:10 -04:00
Robert Morris
5494c91705 rename p->tf to p->trapframe, for consistency with p->context 2020-08-10 11:19:10 -04:00
Robert Morris
82981fab6b drop QEMUEXTRA 2020-08-10 11:19:10 -04:00
Robert Morris
af9eb9114c make "echo hello > x" truncate file x. 2020-08-10 11:19:10 -04:00
Robert Morris
672217ae2a allow more files 2020-08-10 11:19:10 -04:00
Robert Morris
b62d4d412b more grind 2020-08-10 11:19:10 -04:00
rtm
897f6f34dd yet another toolchain name 2020-08-10 11:19:10 -04:00
Takahiro
7a5fcb28b3 Write interrupt ack register in virtio_disk_intr() 2020-04-18 14:49:54 -07:00
Rui Ueyama
4cf0b0973e cat should exit normally if reading from stdin 2020-03-11 16:06:55 +09:00
Jonathan Kimmitt
2b040aa379
Update ramdisk.c 
The qemu syntax for a ram disk was documented incorrectly. The documented syntax is here:
https://qemu.weilnetz.de/doc/qemu-doc.html
 2020-01-16 15:05:27 +00:00
Robert Morris
20f1dd9409 more grind 2019-11-07 06:44:23 -05:00
Robert Morris
16b3b63f06 grind: run parallel system calls forever 2019-11-06 11:18:43 -05:00
Robert Morris
028af27646 mention LRU list a bit more in comments. 2019-10-29 04:32:55 -04:00
Robert Morris
9de9211b11 usertests -c to repeat tests forever 
detect memory leaks
no more "already ran user tests"
 2019-10-28 05:58:28 -04:00
Robert Morris
e7ffb74ad1 fix a potential memory leak 2019-10-27 13:36:46 -04:00
Robert Morris
d9160fb4b9 nits 2019-10-27 08:03:19 -04:00
Anish Athalye
f2ab0eb644 Clean up linker script 
This patch does the following:

- Add .text.* to the .text section in the output
- Add an assertion that the trampoline does not overflow a page
- Add the .rodata section
- Make .sdata and .sdata.* (which is for small data) be absorbed into
  the .data section, because we don't need to distinguish between them;
  this prevents .sdata from appearing in the output
- Make the analogous change for .srodata and .sbss
- Make all the data sections 16-byte aligned

This patch also updates the .editorconfig for *.ld files.
 2019-10-21 22:27:18 -04:00
Fumiya Shigemitsu
90eb90b5e2 Fix minor typos 2019-10-21 21:01:07 +09:00
Robert Morris
2821d43cc9 nits 2019-10-16 12:27:08 -04:00
Anish Athalye
f2df0fa547 Fix ulib's memmove to handle overlap when src<dst 2019-10-08 21:24:03 -04:00
Anish Athalye
8509784d80 Add implementations of memcmp and memcpy to ulib 
This is necessary because gcc may generate calls to memcmp, memset,
memcpy, and memmove when compiling with -nostdlib.
 2019-10-08 21:18:54 -04:00
Robert Morris
a52d296814 delete alarmtest from riscv 2019-10-03 15:09:31 -04:00
Robert Morris
56583b1402 updated alarmtest 2019-10-03 15:02:19 -04:00
Anish Athalye
78f863f8ae Add editorconfig 2019-09-30 20:38:17 -04:00
Anish Athalye
d441674477 Make QEMU memory size match PHYSTOP 2019-09-30 20:32:57 -04:00
Robert Morris
deaff5d8a6 no buf->qnext 2019-09-24 14:41:51 -04:00
Xi Wang
9ead904afe fix major validation 
fileread/filewrite should validate major to avoid buffer overflows
or bogus function pointers.
 2019-09-23 20:01:56 -04:00
Robert Morris
37df68e5de story is more complex than I thought. 2019-09-23 07:24:41 -04:00
Robert Morris
d175beadf5 bug fix: reparent() sometimes deadlocked 
bug fix: exit() sometimes released a different parent lock than it acquired
usertests
 2019-09-23 06:50:25 -04:00
Frans Kaashoek
843ce77765 Stress copyin for the full allocated page (good for lazy lab). 2019-09-21 17:28:18 -04:00
Robert Morris
d940fd122d don't leak memory if exec() arguments are invalid. 2019-09-21 04:54:25 -04:00
Frans Kaashoek
6b79ee69b7 Refactor big sbrk test in smaller, easier-to-understand tests 2019-09-21 02:07:24 -04:00
Frans Kaashoek
ee67dbd211 Not much: factor sbrksimple from big sbrktest 2019-09-20 17:08:13 -04:00
Robert Morris
7c7ed20822 don't leak a file system block if the buf argument to write is invalid 
and a usertest
 2019-09-20 13:09:26 -04:00
Robert Morris
e1a37303c8 yet another sbrk() bug fix, and usertest 2019-09-20 12:13:57 -04:00
Robert Morris
4de161f973 don't panic if a program frees all its memory with sbrk(). 
if a program sbrk()'s to a non-page-boundary, don't free that page.
corresponding usertests.
 2019-09-20 11:35:27 -04:00