Frans Kaashoek
4cd4d194b8
Use simple linker script to force data segment to be page aligned
2022-08-23 10:54:40 -04:00
Frans Kaashoek
cef1b57d4a
Compile user binary to map text without W and data without X
...
Use the flags in elf header to set vm permissions
Modify pgbug() so that usertests text segment is without W
Add test to check app cannot write text segment
2022-08-15 19:02:19 -04:00
Frans Kaashoek
2175c6b0b6
Run tests in the order in which they appear in the file
2022-08-15 19:01:34 -04:00
Frans Kaashoek
899cc02660
Experiment with being more precise setting permissions for user pages.
...
Growing adds R|W pages (without X). Exec() marks the stack only R|W.
Probably could setup permissions for text and data better if we call
ld with --no-omagic instead of -N.
2022-08-12 13:22:10 -04:00
Frans Kaashoek
8f58cc7df9
Cosmetic change (thanks Harry Porter)
2022-08-12 12:59:33 -04:00
Frans Kaashoek
62bc610424
cosmetic changes (thanks Harry Porter)
2022-08-12 11:47:39 -04:00
Frans Kaashoek
dd5a720044
cosmetic changes (thanks Harry Porter)
2022-08-12 10:57:16 -04:00
Frans Kaashoek
8bd04852c9
Delete rtcdate, which is a left-over from an old lab (thanks Harry Porter)
2022-08-12 09:43:18 -04:00
Frans Kaashoek
48d1a7ffa5
Add USED to states (thanks Harry Porter)
2022-08-12 09:14:54 -04:00
Frans Kaashoek
b1fd09335a
Merge remote-tracking branch 'g/riscv' into riscv
2022-08-10 10:31:54 -04:00
Robert Morris
e67cb408d4
x
2022-08-10 07:21:50 -04:00
Robert Morris
07cf0eb255
have sh print prompt with write, not printf, to make
...
system call lecture a little clearer.
2022-08-10 07:21:50 -04:00
Robert Morris
c908d20132
put walk() in defs.h so it's clear students can call it
2022-08-10 07:21:50 -04:00
Frans Kaashoek
143cde639d
Merge remote-tracking branch 'github/riscv' into riscv
2022-08-10 07:18:39 -04:00
Robert Morris
e606f95459
x
2022-08-10 07:06:49 -04:00
Robert Morris
c3a17f454a
have sh print prompt with write, not printf, to make
...
system call lecture a little clearer.
2022-08-10 06:42:17 -04:00
Robert Morris
311479ceb7
put walk() in defs.h so it's clear students can call it
2022-08-10 06:41:00 -04:00
Robert Morris
76ad8e974f
avoid user-level segfault if a process doesn't call exit()
2022-08-10 06:37:21 -04:00
Robert Morris
872fa88e8a
tolerate running out of disk blocks
2022-08-10 06:13:52 -04:00
Robert Morris
7d573bae2a
Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv
2022-08-10 06:00:57 -04:00
Robert Morris
f4b3edf5ab
comment nits
2022-08-10 06:00:40 -04:00
Robert Morris
535f1797f0
nothing much
2022-08-09 20:34:06 -04:00
John Jolly
2462656f21
[user/ls]: List specific device file
...
When using the ls userspace program to list a specific device file,
nothing would be displayed. This was because ls only tests for T_FILE
and T_DIR. T_DEVICE files would fall through the case block.
Adding T_DEVICE to the T_FILE case allows a device file to be listed.
$ ls console
console 3 19 0
2022-08-09 20:29:38 -04:00
WaheedHafez
9f3673c4da
fix 'kfree' comment in kalloc.c
...
'kfree' has a parameter named 'pa' but referenced in the comment as 'v'.
2022-08-09 20:29:38 -04:00
mrm
c1c16269b1
fix comment in mkfs.c
2022-08-09 20:29:38 -04:00
John Jolly
62d8da06cd
[user/ls]: List specific device file
...
When using the ls userspace program to list a specific device file,
nothing would be displayed. This was because ls only tests for T_FILE
and T_DIR. T_DEVICE files would fall through the case block.
Adding T_DEVICE to the T_FILE case allows a device file to be listed.
$ ls console
console 3 19 0
2022-08-09 20:27:46 -04:00
WaheedHafez
96da76a728
fix 'kfree' comment in kalloc.c
...
'kfree' has a parameter named 'pa' but referenced in the comment as 'v'.
2022-08-09 20:27:04 -04:00
mrm
f33f0d8622
fix comment in mkfs.c
2022-08-09 20:24:04 -04:00
Ravjot Singh Samra
a2e4051b99
Added missing va_end().
2022-08-09 20:20:32 -04:00
Ravjot Singh Samra
431e21f7d4
Added missing va_end().
2022-08-09 20:20:01 -04:00
Robert Morris
7d8bfdcbe3
nothing much
2022-08-09 15:11:25 -04:00
olf
dd431c400a
README: Fix formatting in acknowledgements
2022-08-09 14:29:48 -04:00
Rahul Thomas
7c958af782
enable reading memory using gdb
2022-08-09 14:21:16 -04:00
Robert Morris
27a669ef25
comment nits
2022-08-09 14:17:46 -04:00
Robert Morris
af9abaca05
Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv
2022-08-09 13:41:51 -04:00
Robert Morris
3abd7a16dd
comment
2022-08-09 13:41:45 -04:00
Robert Morris
cf0c095721
sscratch cleanup
2022-08-09 12:14:29 -04:00
Robert Morris
9fc9f755e1
adopt github PR98 (No need to store TRAPFRAME in sscratch register)
2022-08-09 11:44:02 -04:00
Robert Morris
ca6fc54934
tweak virtio comments
2022-08-08 11:10:54 -04:00
Frans Kaashoek
84fb6f3dc2
Merge branch 'virtio' into riscv
2022-08-02 11:44:40 -04:00
Frans Kaashoek
1b02b08db1
Mark runcmd with attribute noreturn, since it doesn't return
...
When compiling with gcc version 12, this change also avoids the
compiler warning "infinite recursion detected" for runcmd()
2022-08-02 09:38:22 -04:00
Frans Kaashoek
84a1bdb5aa
Revert "Not treat infinite-recursion as error"
...
This reverts commit 759bb34113
2022-08-02 09:37:30 -04:00
Dezhi Wu
759bb34113
Not treat infinite-recursion as error
2022-07-21 19:01:23 -04:00
Xi Wang
cd00a8233a
port virtio_disk to virtio spec 1.0+
...
The legacy interface is confusing. It's better to make virtio_disk
conform to the virtio spec. This is supported in QEMU since 4.2 by
disabling force-legacy for virtio-mmio.
2021-10-17 23:05:09 -07:00
Frans Kaashoek
a1da53a5a1
update
2021-09-01 07:31:22 -04:00
Frans Kaashoek
8ca56e9e0b
memmove(dst, src, 0) leads to overflow in while(n-- > 0) as n is uint64 (thanks
...
Matúš Jókay <matus.jokay@stuba.sk>)
2021-09-01 07:29:12 -04:00
Frans Kaashoek
bf4816c9c6
Delete unused code (Jude Rich <juder11@gmail.com>)
2021-09-01 07:24:07 -04:00
Frans Kaashoek
02424b1f84
update
2021-08-31 21:06:53 -04:00
yzhu
a103113db0
fix ld warning: undefined symbol _entry
2021-08-31 20:58:58 -04:00
Pavan Maddamsetti
840aae871f
die
2021-08-31 20:57:03 -04:00
