bbc4a4aefe
workaround for crash on graphical debug finish
2022-01-28 09:47:47 -07:00
3f2a9f7f0a
Fix graphical debug feature
2022-01-28 09:15:03 -07:00
0ab4529eaa
Make register dumps lowercase
2021-12-01 09:53:33 -07:00
cd3dcf153e
Do not print interpreter
2021-12-01 08:40:11 -07:00
63fcc204cb
x86 paging refactor for debugger
2021-11-30 20:56:55 -07:00
77b8215a66
Getter for Grant region, remove set_mapped, and make region_mut private
2021-11-30 20:06:45 -07:00
4f259e3589
Workaround for thread race conditions
2021-11-30 18:03:34 -07:00
515cab03eb
Fix a number of warnings
2021-11-29 20:01:27 -07:00
61279db991
Remove no_threaded_syscalls feature
2021-10-27 20:48:16 -06:00
61d8b0ff32
Fix allocator race condition
2021-10-27 20:29:00 -06:00
063881d2ca
Show context name and syscall when panicking
2021-10-27 20:28:40 -06:00
9ea278997c
Disable threaded syscalls until threaded allocation issues are solved
2021-10-20 20:05:47 -06:00
64f1533d6f
Implement anonymous fmap
2021-09-22 21:04:04 -06:00
17309754d6
Merge branch 'no-more-recursive-mapping' into 'master'
...
No more recursive mapping
See merge request redox-os/kernel!187
2021-08-13 02:13:07 +00:00
307fcf3ad7
Remove now unused TLS struct.
2021-08-11 17:46:40 +02:00
d6e1797620
Make Mapper::map fallible.
2021-08-11 17:46:40 +02:00
df145ea0a9
Utilize linear_phys_to_virt where applicable.
2021-08-11 17:46:40 +02:00
16a31b0cd1
Add linear_phys_to_virt and vice versa.
...
However, since not all platforms will allow the entire physical address
space to be simultaneously mapped to part of the virtual address space,
we may still require some dynamic mapping.
2021-08-11 17:46:40 +02:00
5f4978a6dc
Return ENOMEM rather than panicking for PML4 alloc.
2021-08-11 17:46:40 +02:00
67cc6799bd
Fix possible UB by checking for null allocating FX.
...
Namely, the global allocator API in Rust, actually only returns a null
pointer on failure, rather than wrapping it in a Result, which AllocRef
does. Since Box::from_raw(null) is direct UB, this can in theory lead to
very strange behavior.
2021-08-11 17:46:40 +02:00
465c461b60
WIP: Stop using recursive mapping.
...
Note that this is very preliminary, and I merely got my already freezing
kernel branch not to triple fault, but I would probably apply this patch
to upstream.
What is changed here, is that rather than relying on recursive mapping
for accessing page table frames, it now uses linear translation
(virt=phys+KERNEL_OFFSET). The only problem is that the paging code now
makes assumptions that the entire physical address space remains mapped,
which is not necessarily the case on x86_64 architecturally, even though
systems with RAM more than a PML4 are very rare. We'd probably lazily
(but linearly) map physical address space using huge pages.
2021-08-11 17:46:33 +02:00
0c3542ff51
Store funmap data with the context's grants
2021-08-10 20:46:30 -06:00
f94dc3beb8
Allow current process to access its own proc data
2021-08-10 16:33:49 -06:00
0b1445f8bd
Merge branch 'fix_interrupt_handlers' into 'master'
...
Fix TLS in paranoid interrupt handlers
See merge request redox-os/kernel!186
2021-08-09 21:19:39 +00:00
1a80351a2c
Fix TLS in paranoid entries.
2021-08-09 14:25:15 +02:00
41d5a2a786
Use naked functions in syscall inst handler too.
2021-08-06 18:08:04 +02:00
d7a1c6255b
Fix possible race condition in paranoid ISRs.
...
Additionally, because it turned out to be infeasible to rely on
link-time constants in global_asm! code, I have also converted the
interrupt handlers to naked fns. This removes the proc-macro-reliant
"paste" dependency, but inserts a tiny ud2 at the end of every ISR.
2021-08-06 17:34:56 +02:00
1047728f35
Only set process regs for faults from ring 3.
...
This fixes a deadlock that might occur if a page fault is triggered
while a lock to the current context is held.
2021-08-06 15:41:38 +02:00
862265f150
Merge branch 'fsgsbase' into 'master'
...
FSGSBASE and user-controlled TLS
See merge request redox-os/kernel!185
2021-08-06 13:22:45 +00:00
25a82eeb1b
Update syscall again.
2021-08-06 15:09:32 +02:00
57a1e37535
Update syscall.
2021-08-06 14:46:47 +02:00
87241a9d3c
Pass AT_PHDR via a grant rather than the stack.
2021-08-01 14:57:41 +02:00
3eedbeb14d
WIP: Let userspace manage fsbase/gsbase and TLS.
2021-08-01 12:09:22 +02:00
0968e4f87e
Support fsgsbase at compile time.
2021-07-31 10:12:59 +02:00
9c3cf84453
Merge branch 'futex_wait64' into 'master'
...
Add support for full 64-bit futex words
See merge request redox-os/kernel!183
2021-07-11 22:14:10 +00:00
6993c98e0f
Update rmm and syscall.
2021-07-12 00:10:48 +02:00
bbe6b4650a
Futex: check for lower-half addrs manually.
2021-07-08 16:08:02 +02:00
bcfd7b175e
Update rmm.
2021-07-08 13:47:16 +02:00
9e9d025bb5
Add support for FUTEX_WAIT64.
2021-07-08 13:28:46 +02:00
b973c5db95
Merge branch 'dont-hardcode-reg-offsets' into 'master'
...
Use offset_of! in context::arch::switch_to.
See merge request redox-os/kernel!180
2021-06-21 19:06:56 +00:00
3e5cf387d5
Use offset_of! in context::arch::switch_to.
...
This is definitely better than hardcoding the offsets!
2021-06-21 10:16:41 +02:00
6039026349
Merge branch 'update_toolchain' into 'master'
...
Update toolchain
See merge request redox-os/kernel!179
2021-06-18 15:15:15 +00:00
ecfcedb9bf
Remove explicit .intel_syntax directive.
...
It is now default, and the new compiler generated a lot of warnings now
that Intel syntax has (luckily) become the default.
2021-06-18 09:20:13 +02:00
1cf5f5ea22
Update dependencies to work with latest nightly.
2021-06-17 22:42:54 +02:00
2dc899dc3b
Update paste and align interrupt handlers.
2021-06-17 22:42:50 +02:00
7594dd60d2
Remove compare_and_swap from int_like!.
2021-06-17 22:42:44 +02:00
7d4defa5e5
Use weak CAS and use abort() in context::switch.
...
Previously context::switch used compare_and_swap for acquiring the
global context switch lock, but given its deprecation in more recent
Rust versions, it has been replaced with compare_exchange_weak (which
can be further optimized on some architectures).
It also replaces panic!() with abort() in switch_finish_hook, because
unwinding from assembly is not that fun.
2021-06-17 22:42:38 +02:00
cc6f792a03
Use options(noreturn) in all naked functions.
2021-06-17 22:42:31 +02:00
dc5f1fe055
Update toolchain.
2021-06-17 22:42:23 +02:00
d3cf4db47b
Prerequisites for risv64 support
2021-05-12 20:23:53 -06:00
Jeremy Soller