e8060b259d
Only save ip and 'archdep' regs when signalling.
2024-07-15 17:20:56 +02:00
93a3401df4
Fix bug causing raise() to not deliver any signals.
2024-07-15 17:20:56 +02:00
87046b77c7
Compile on aarch64.
2024-07-15 17:20:56 +02:00
c1ce1d76f9
Compile on i686.
2024-07-15 17:20:56 +02:00
5b25e2cda7
Fix excp_handler deadlock.
2024-07-15 17:20:56 +02:00
cc406804c0
Don't double-clear is_pending flag.
2024-07-15 17:20:55 +02:00
35aa24800b
Implement correct context sig unblocking behavior.
2024-07-15 17:20:55 +02:00
93f0573b5d
Use improved signal control struct defs.
2024-07-15 17:20:55 +02:00
d6e0eef065
Implement signal delivery code (untested).
2024-07-15 17:20:55 +02:00
9b68d4de80
Fix add_ref(Shared) refcounting bug.
2024-07-15 17:20:55 +02:00
7d5b2e6c21
Prevent infinite userspace crash loops.
2024-07-15 17:20:55 +02:00
55fe58adf6
WIP: implement kill syscall prototype
2024-07-15 17:20:55 +02:00
639ba74a7e
Fix kernel compilation.
2024-07-15 17:20:55 +02:00
295cc820e6
WIP: userspace signal handling
2024-07-15 17:20:55 +02:00
198151a355
Make sure aarch64 kernel doesn't use any FP registers
2024-07-13 12:06:50 +00:00
9c639af217
Fix debug assertion bug
2024-07-12 23:15:33 +03:00
bf0fc66ac1
Improved scheme protocol.
2024-06-14 11:31:51 +00:00
81e6fc70d2
Enable use of MmapMode::Cow
2024-06-05 12:56:29 -06:00
161a92c9c2
Forbid strong fdtbl refs after setting context's.
...
This fixes a possible file table leak if a filetable contains an fd
referring (strongly) to the filetable itself. Now, it will automatically
be downgraded to a weak reference after it becomes a context's active
file table.
TODO: maybe support consuming a context's filetable to get a strong
reference back, provided it's exclusively owned.
2024-04-10 21:49:43 +02:00
168692f09d
x86: use initial_top for tss stack
2024-03-25 14:15:43 -06:00
c17279f5bf
Allocate kernel stacks using the frame allocator.
2024-03-25 16:31:16 +01:00
b5523df187
Only support power-of-two frame allocations.
2024-03-24 14:40:15 +01:00
12282439b6
Reduce dead code, fix aarch64.
2024-03-23 23:51:12 +01:00
e6dc0e96f0
Fix aarch64.
2024-03-23 19:16:53 +01:00
7261dccb72
Fix i686.
2024-03-23 16:54:47 +01:00
d2dc3302a7
Remove RefCount::Zero.
...
Only the allocator is allowed to switch between 0 and 1. Refcounts above
1 are however controlled by the virtual memory system.
2024-03-22 13:31:22 +01:00
2ba9ff720c
Doubly-linked list.
2024-03-22 13:25:07 +01:00
d5b1ad2cd5
WIP: Improve allocation performance
2024-03-22 13:17:59 +01:00
66eb3361d3
Use saved regs instead of costly context.syscall.
2024-03-19 11:33:55 +01:00
4862977fa5
Optimize syscall fast path without tracing.
2024-03-18 20:38:11 +01:00
d62aada7ad
Replace iopl with either empty or full PIO bitmap.
2024-03-18 10:27:51 +01:00
4a3dc2dadd
Fix the SIGKILL fd leak bug.
2024-03-16 17:49:32 +01:00
8e19da338b
Fix kstop and kreset.
2024-03-16 17:49:31 +01:00
b97e733d94
Boot to desktop on aarch64.
2024-03-16 17:49:31 +01:00
57c3119a83
Fix i686 triple fault by always initializing int stack.
2024-03-16 17:49:31 +01:00
5ecba176f4
Compile on aarch64.
2024-03-16 17:49:31 +01:00
776a140212
Fix rax being overwritten, and compile on i686.
2024-03-16 17:49:31 +01:00
239bd317e9
Fix signal ordering wrt syscall return.
2024-03-16 17:49:31 +01:00
e57573c428
Ensure signals can't start new contexts too early.
2024-03-16 17:49:30 +01:00
e012d6cfca
Fix altstack calculation typo.
2024-03-16 17:49:30 +01:00
6d1e436d29
Remove some dead code.
2024-03-16 17:49:30 +01:00
6bf8238fb1
Unset procmask for kmain.
2024-03-16 17:49:30 +01:00
5ac0be7ec1
Start with full procmask, fix signal delivery.
2024-03-16 17:49:30 +01:00
5336cbd9e5
Improve signal interfaces and implementation.
2024-03-16 17:49:30 +01:00
b5f94a5a2e
Fix bug in the unmapping code
...
Previously trying to funmap an address after the start of the grant
would result in an overflow only caught when compiling the kernel with
debug assertions enabled.
2024-03-14 12:15:43 +01:00
ec58d6c541
Compile on aarch64 as well.
2024-03-05 10:40:54 +01:00
d38d8b66bd
Fix i686 compilation.
2024-03-05 10:26:57 +01:00
b35c9d1e62
Properly free phys-contiguous grants, TLB-delayed.
2024-03-04 19:03:01 +01:00
4e392d05e4
Delay cow() dealloc until after TLB shootdown.
2024-03-04 19:03:01 +01:00
fa3e2a24d4
Optimize TLB flushing.
2024-03-04 19:03:01 +01:00
4lDO2