Bananymous
fa900df5a7
Kernel: Add signals for threads after IRQs
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This allows signals to be called even if the process does no syscalls
The old scheduler did signal handling but I feel like it should be
enough to handle them only after syscalls and IRQs. ISRs already
handle signals that caused the ISR and there is no other route to
kernel space.
2024-04-03 15:07:18 +03:00
Bananymous
414f0f6cd9
Userspace: Don't link with libc
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This fixes bug where sometimes cmake does not find libc from sysroot
LibC is linked per program in its own CMakeLists.txt
2024-04-03 14:46:18 +03:00
Bananymous
7ef751ba95
Kernel: Fix multiprocessor for i686
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i686 is now actually ran with multiple processors.
2024-04-03 14:42:17 +03:00
Bananymous
f8c01418b1
Kernel: Fix multiprocessing on x86_64
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I did not even start APs after initializing them... :D
2024-04-03 14:21:55 +03:00
Bananymous
731330c6b5
Merge pull request 'Add back x86_32 support' ( #5 ) from x86_32 into main
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Reviewed-on: #5
2024-04-03 02:36:28 +03:00
Bananymous
d2df55b1ac
Kernel: Allow booting with multiple processors on i686
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Also remove unnecessary ds clearing in x86_64.
2024-04-03 02:30:38 +03:00
Bananymous
0dd74e3c9d
Kernel: Implement syscalls for i686 and cleanup x86_64
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This actually allows i686 to boot properly!
2024-04-03 02:23:23 +03:00
Bananymous
9e073e9fa0
Kernel: Add offset for interrupt stack in Scheduler::yield()
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This allows accessing (garbage) sp and ss in interrupt stack.
2024-04-03 00:45:22 +03:00
Bananymous
c95a271821
Kernel: Set ss in i686 tss
2024-04-03 00:43:38 +03:00
Bananymous
fe386fa819
Kernel: Implement thread start trampoline for userspace
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This is needed on i686 to set segment registers.
2024-04-03 00:42:39 +03:00
Bananymous
4d70322eab
Kernel: Save segment registers on all interrupts on i686
2024-04-03 00:41:13 +03:00
Bananymous
d9b8391968
Kernel: Fix i686 page table global mappings
2024-04-03 00:40:16 +03:00
Bananymous
6ac3681604
Bootloader: Implement loading for 32 bit ELF files.
2024-04-02 15:30:35 +03:00
Bananymous
b35cad0c2e
Bootloader allow installation when BANAN_ARCH=i686
2024-04-02 12:48:35 +03:00
Bananymous
2106a9e373
Kernel: Rework scheduler/processor stacks.
2024-04-02 12:34:42 +03:00
Bananymous
5050047cef
Kernel: Rewrite whole scheduler
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Current context saving was very hacky and dependant on compiler
behaviour that was not consistent. Now we always use iret for
context saving. This makes everything more clean.
2024-03-29 18:02:12 +02:00
Bananymous
1b65f850ee
Kernel: Rename thread stacks to more appropriate names
2024-03-27 15:06:24 +02:00
Bananymous
7c2933aae1
Kernel: Fix ISR error code formatting to 32 bit
2024-03-26 21:01:18 +02:00
Bananymous
96babec22a
Kernel: Implement Thread trampolines for x86_32
2024-03-26 21:01:18 +02:00
Bananymous
c12d1e9bd9
Kernel: Implement PageTable for x86_32
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This is mostly copied from x86_64 with necessary modifications
2024-03-26 20:16:20 +02:00
Bananymous
4d1f0e77f2
Kernel: Fix physical address size for x86_32
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Having 32 bit address space does not mean physical address space
is also only 32 bits...
2024-03-26 20:16:20 +02:00
Bananymous
d7bf34ecd0
Kernel: Write isr handler for x86_32 and cleanup x86_64
2024-03-26 20:16:20 +02:00
Bananymous
1943c3e7a1
Kernel: Unify IDT and GDT code between x86_64 and x86_32
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The code is pretty much the same, so there are just couple macros
differiating initialization.
2024-03-26 16:42:02 +02:00
Bananymous
af050cc729
Kernel: Fix boot code for x86_32
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Boot assembly now initializes processor and jumps to kernel
2024-03-26 13:25:22 +02:00
Bananymous
84ef2161a1
BuildSystem: Allow running qemu with i686 target
2024-03-26 03:18:54 +02:00
Bananymous
ca23360d07
Bootloader: Fix GDRT pointer size to 32 bits
2024-03-26 03:04:57 +02:00
Bananymous
5dbe51a52e
Userspace: Update printf formats to compile on 32 bit
2024-03-26 03:03:33 +02:00
Bananymous
99e30a4d7d
Kernel: Replace i386 with i686
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I don't really want to be working with i386 since it doesn't support
compare exchange instruction
2024-03-26 02:48:26 +02:00
Bananymous
93975fdc45
Kernel: Process signal mask is now 2 32 bit values
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This allows signal mask to be atomic on 32 bit target
2024-03-26 02:46:51 +02:00
Bananymous
fbef90f7cb
Kernel/LibC: Write cxx abi with proper locking
2024-03-26 02:28:10 +02:00
Bananymous
a9db4dd9a3
Kernel: NVMe Queue max simultaneous commands is dependent on arch
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This allows mask to be atomic on 32 bit architectures
2024-03-26 01:45:43 +02:00
Bananymous
fc7e96fa66
Kernel: Rewrite i386 boot code + linker script
2024-03-26 00:10:42 +02:00
Bananymous
097d9a6479
Kernel: Implement dummy IDT and GDT for i386
2024-03-26 00:10:42 +02:00
Bananymous
2dd0bfdece
Kernel: Make i386 thread tramplines crash
2024-03-26 00:10:42 +02:00
Bananymous
26585bb1d9
Kernel: Implement signal trampoline for i386
2024-03-22 15:41:15 +02:00
Bananymous
0d92719433
Kernel: Remove old i386 spinlock code
2024-03-22 15:41:15 +02:00
Bananymous
1ab2722850
Kernel: Add PageTable stub to progress linking
2024-03-22 15:41:15 +02:00
Bananymous
fe17958b9f
Kernel: Rename rsp->sp and rip->ip
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This makes more sense if we support i386
2024-03-22 15:41:15 +02:00
Bananymous
3e4d410646
Kernel: Fix AHCI device physical address writing on i386 target
2024-03-22 15:41:15 +02:00
Bananymous
b5aae34d86
Kernel: Specify template paramenters where they cannot be deduced
2024-03-22 15:41:15 +02:00
Bananymous
7f029b2713
Kernel: Allow Processor compilation for i386 targets
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This is achieved by rewriting some inline assembly and changing
ProcessorID to be 32 bit value. For some reason if processor id
is 8 bits gcc runs out of 8 bit registers on i386.
2024-03-22 15:41:15 +02:00
Bananymous
0424082e7b
Kernel: Only compile lai for x86_64 targets
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I will be dropping lai entirely soon. Once I get to writing AML
interpreter.
2024-03-22 15:41:15 +02:00
Bananymous
2352c86048
Kernel: i386 has 14 indirect blocks in TmpInode instead of 2
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This allows keeping size of TmpInodeInfo as 128
2024-03-22 14:01:27 +02:00
Bananymous
c0dff5e203
Kernel: Scheduler/Thread add inline assembly for i386
2024-03-22 14:01:27 +02:00
Bananymous
d920785256
Kernel: RDRAND on i386 is called twice with 32 bit register
2024-03-22 14:01:27 +02:00
Bananymous
45cea14165
Kernel: Move sys_fork trampolines to kernel/arch/ directory
2024-03-22 12:48:54 +02:00
Bananymous
26ed689d30
Kernel: Remove old GDT, IDT and MMU code from i386
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It will be easier to just rewrite them
2024-03-22 12:47:34 +02:00
Bananymous
7ce0370b6a
Kernel: Define KERNEL_OFFSET for i386 target
2024-03-22 12:35:49 +02:00
Bananymous
aa2e53c4f8
Kernel: E1000 fix physical address on 32 bit target
2024-03-22 12:35:38 +02:00
Bananymous
9ecd156622
Kenrel: Ext2 fix signed-unsigned comparisons
2024-03-22 12:35:29 +02:00
Bananymous