939feacdc5
Add fn for validating user memory range bounds.
2022-07-27 10:52:46 +02:00
5bbfdcda6b
Add mmap-min-addr and support unmapping parent PTs.
2022-07-27 10:52:45 +02:00
0720db2265
Remove SYS_EXEC debug code.
2022-07-27 10:52:29 +02:00
308c2cc711
Support modifying processes' sigactions.
...
This is, other than vfork, the last piece of functionality that the
previous clone() offered (CLONE_SIGHAND) which previously was not
implemented.
2022-07-27 10:52:29 +02:00
c912d9e0db
Partial: migrate syscall handling code to RMM.
2022-07-27 10:52:23 +02:00
8970ce1fe7
Benefit from addrspace abstraction in switch.
2022-07-27 10:52:22 +02:00
1cdd462244
Move the initfs scheme to userspace.
2022-07-27 10:52:22 +02:00
b141cdaad2
Fail if funmap's length isn't page size divisible.
2022-07-27 10:52:22 +02:00
60e3e0af34
Flush less frequently in funmap.
2022-07-27 10:52:22 +02:00
cb40eb3792
Support reading all grants and transferring grants.
2022-07-27 10:52:10 +02:00
283ada82a0
WIP: Remove SYS_CLONE (to be done in userspace).
2022-07-27 10:52:03 +02:00
563121596d
Fix running on multi_core.
...
Turns out the problem all along was that the ActivePageTable was never
dropped in usermode_bootstrap. So as soon as any other hardware thread
tried to do page table business, it deadlocked!
2022-07-27 10:51:45 +02:00
6e5015dcab
WIP: Add necessary interfaces for setuid/setgid.
2022-07-27 10:51:45 +02:00
37f9b292f1
Add kfmap to fix properly reobtaining grants.
2022-07-27 10:51:45 +02:00
31c4bc8a1c
Remove kernel support for fmap_old and funmap_old.
2022-07-27 10:51:45 +02:00
23f49414bd
Fix phys offset, lock grants correctly.
2022-07-27 10:51:45 +02:00
15b029de36
Fix everything all the way to booting to desktop.
2022-07-27 10:51:45 +02:00
e6e1348072
Implement exec, and change UserGrant allocator.
2022-07-27 10:51:44 +02:00
846318e716
WIP: Attempt implementing fexec in userspace.
2022-07-27 10:51:43 +02:00
4d7da495f5
Fix "clone grant using fmap"
...
This does the same as the previous MR, but fixes the issue where the
parent process got the mapping (and at the wrong address) and not the
child process.
2022-04-11 21:31:36 +02:00
e72fd5a0e4
Fix a kernel deadlock in empty().
...
For more information, see https://gitlab.redox-os.org/4lDO2/kernel/-/commit/b3b5d1b864eec030d53ccd2ab907c68958f140aa
2022-04-09 13:38:59 +02:00
87b3bef06c
Revert "Merge branch 'clone_grant_using_fmap' into 'master'"
...
This reverts merge request !190
2022-03-30 14:54:49 +00:00
37ebef2d35
Merge branch 'pipe_list_const_fn' into 'master'
...
Move more of `pipe:`'s initialization to compile time.
See merge request redox-os/kernel!182
2022-03-30 13:54:27 +00:00
c5c5b33b6a
Merge branch 'clone_grant_using_fmap' into 'master'
...
Clone grant using fmap
See merge request redox-os/kernel!190
2022-03-30 13:53:08 +00:00
c1aa76bf3c
Fill in st_dev in fstat
2022-02-14 09:57:24 -07:00
a3356c3fdd
Clone grant using fmap
2021-12-30 11:27:44 +01:00
cd3dcf153e
Do not print interpreter
2021-12-01 08:40:11 -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
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
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
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
bbe6b4650a
Futex: check for lower-half addrs manually.
2021-07-08 16:08:02 +02:00
9e9d025bb5
Add support for FUTEX_WAIT64.
2021-07-08 13:28:46 +02:00
e92ff831b7
Move more of pipe:s init to compile time.
2021-07-05 11:54:11 +02:00
d3cf4db47b
Prerequisites for risv64 support
2021-05-12 20:23:53 -06:00
558109a9cb
Put the KPCRs in high memory, in their own PML4.
...
This also removes the need to do another semi-expensive remap when
cloning processes, since the KPCRs (for kernel TLS) are no longer stored
in the user PML4.
2021-05-06 21:21:37 +02:00
3eacbdda2a
Remove unnecessary exit() diff.
2021-05-06 19:49:58 +02:00
fd97fa80bb
Move pid back to inner scope in exit() handler.
2021-05-06 19:49:58 +02:00
9b4ce0d0cc
WIP: Fix userspace ACPI shutdown.
2021-05-06 19:49:58 +02:00
8d61c79b23
Use RMM TableKind and fix x86_64 compilation
2021-05-03 21:15:46 -06:00
2aa4d8caf5
Merge remote-tracking branch 'origin/aarch64-rebase' into riscv64
2021-05-03 20:52:59 -06:00
17c261553b
Fixes for building x86_64
2021-05-03 20:43:18 -06:00
b9448274fc
Switch to using RMM PageFlags
2021-05-03 17:28:08 -06:00
4lDO2