5f6a659fa1
kernel: Enable UBSAN when building in debug mode
2023-02-25 17:45:40 +01:00
d842443869
kernel: Switch to a stack we control for the main task as soon as we leave early boot
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continuous-integration/drone/pr Build is passing
This is probably pointless as the main task only exists up until the point where the Scheduler starts running, but some init code was running into a stack overflow due to the fact that we only had one bootloader-provided page of stack.
This should probably be changed afterwards.
2023-02-18 00:18:42 +01:00
4e88a7482c
kernel, luna: Move Spinlock.h to luna
2023-02-14 20:05:00 +01:00
cb4246b98d
kernel: Start working on a VFS implementation using OOP and SharedPtr
continuous-integration/drone/pr Build is passing
2023-02-03 22:20:00 +01:00
89958fbc74
kernel: Show a more technical message on failure to remap kernel data sections
continuous-integration/drone/push Build is passing
2023-02-02 21:26:07 +01:00
c05a87c7ff
kernel: Reenable the text console on panic
continuous-integration/drone/push Build is passing
2023-02-01 22:58:31 +01:00
3a84e4998c
kernel/Thread: Add FIXME
continuous-integration/drone/push Build is passing
2023-01-31 17:02:49 +01:00
35501407c1
kernel: Stop shouting when creating threads
continuous-integration/drone/push Build is passing
2023-01-25 21:25:34 +01:00
fd0e29ede5
kernel: Add FIXME in copy_to_user()/copy_from_user()
continuous-integration/drone/push Build is passing
2023-01-25 21:22:14 +01:00
635437a4a4
luna: Add a new idiomatic way to mark unused parameters as used while keeping their names
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Just call ignore(...)
2023-01-25 21:14:44 +01:00
39042cbbd4
kernel: PCI constness updates
continuous-integration/drone/push Build is passing
2023-01-25 21:01:45 +01:00
fa29d6e9b9
kernel: Rename PCI::callback_t to PCI::Callback
continuous-integration/drone/push Build is passing
2023-01-25 20:58:59 +01:00
15c89a3592
kernel: Implement filtered PCI scans
continuous-integration/drone/push Build is passing
2023-01-23 21:24:05 +01:00
3a4ca73df7
kernel: Sync log output
continuous-integration/drone/push Build is passing
2023-01-23 20:42:34 +01:00
6677c643a5
kernel: Start scanning the PCI bus for devices
continuous-integration/drone/push Build is passing
2023-01-23 20:07:17 +01:00
de04c094e7
x86_64: Skip enabling WP for now until I find how to check for its availability
2023-01-23 20:06:45 +01:00
7f8a8cdcaf
kernel, libc: Add an usleep() system call and use that to implement usleep() and sleep() in libc
continuous-integration/drone/push Build is passing
2023-01-22 15:00:20 +01:00
d5b1d72396
x86_64/MMU: Map the kernel page directory to virtual memory
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This avoids depending on the kernel address space to create a new userspace one,
since there is no physical memory access.
This was fine for a single process, since its address space was created from the kernel one
and no more address spaces were created,
but for two or more, this started to become problematic, since we would create one address space
while being in another process's address space, which has no direct mapping of physical memory.
2023-01-22 14:46:03 +01:00
a7a38d3433
Bitmap: Add a fallible variant of match_region() that does not crash if arguments are out of range
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continuous-integration/drone/push Build is passing
This lets us call deallocate_memory() with any address and it will not crash.
2023-01-22 14:25:51 +01:00
0126a8fb6e
luna: Add a new SourceLocation class and use that in check() and expect()
2023-01-22 11:43:48 +01:00
944d32de36
Bitmap: Introduce new malloc-aware initialization functions
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continuous-integration/drone/push Build is passing
Lets us call resize(new_size) instead of initialize(realloc(location, new_size), new_size)
2023-01-21 23:16:50 +01:00
a6974b605e
tools+CMake: Prefix all environment variables with LUNA_
continuous-integration/drone/push Build is passing
2023-01-21 22:44:16 +01:00
a3d0fa7d0a
UserVM: Validate the entire range when freeing multiple VM pages
continuous-integration/drone/push Build is passing
2023-01-16 21:16:38 +01:00
631cdd0204
x86_64/CPU: Skip null instruction pointers on stack trace generation
continuous-integration/drone/push Build is passing
2023-01-16 20:44:45 +01:00
c374c25523
Convert some FIXMEs into NOTES
continuous-integration/drone/push Build is passing
2023-01-16 20:30:35 +01:00
1d92784608
luna, kernel: Replace some uses of char by truly 1-byte wide types
continuous-integration/drone/push Build is passing
2023-01-16 19:52:34 +01:00
1b807a4e06
arch/Timer: Make sure ARCH_TIMER_FREQ is a power of two
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(avoid division and modulo, division is slow)
Fortunately, GCC will optimize divisions by powers of two to simple bitwise shifts :)
2023-01-16 19:43:05 +01:00
5fb2ff09c7
kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace
2023-01-13 19:27:53 +01:00
139c0b5eb1
Kernel: Make a UserVM wrapper around Bitmap and use that to allocate user VM
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This lets us allocate more than one page of memory from the user side.
2023-01-13 19:05:20 +01:00
7462b764d8
Kernel: Add __cxa_atexit iomplementation
2023-01-13 18:56:05 +01:00
9454b65682
allocate_memory: Respect PROT_NONE
2023-01-12 17:59:17 +01:00
586ca19b62
Add a VERY BASIC and hacky way of allocating memory from userspace
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continuous-integration/drone/push Build is passing
Only supports one-page allocations and doesn't have libc wrappers, which means it has to be invoked using syscall().
2023-01-11 23:02:42 +01:00
79a5b98d65
Kernel: Keep the user pointer const through copy_from_user()
continuous-integration/drone/push Build is passing
2023-01-11 19:26:53 +01:00
6e4cd6300d
Kernel: Add copy_from_user() and copy_from_user_typed()
continuous-integration/drone/push Build is passing
2023-01-11 19:25:28 +01:00
d150c55143
TarStream: Support mode
continuous-integration/drone/push Build is passing
2023-01-11 18:42:50 +01:00
82b555cf5c
TarStream: Refactor the API to get rid of that awful method in Result
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continuous-integration/drone/push Build is passing
That method being try_set_value_with_specific_error()
2023-01-11 17:30:53 +01:00
84c82a4e75
luna, kernel: More constness
continuous-integration/drone/push Build is passing
2023-01-10 19:31:41 +01:00
c83f6c03b5
Bitmap: Add a 'find_and_toggle' method
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continuous-integration/drone/push Build is passing
Just like find(), but toggles the value when finding it.
Avoids doing this manually in MemoryManager and KernelVM.
2023-01-09 18:08:50 +01:00
4287ec6cb0
Bitmap: Introduce a new method 'find' and use it in MM and KernelVM
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continuous-integration/drone/push Build is passing
This method looks for the first bit with a value, optionally from a starting index, and returns its index.
This should be (haven't benchmarked) way faster than the manual way,
AKA what MM and KernelVM were doing.
This is due to this method using bit and byte manipulation tricks instead of just calling get() until getting the desired result :)
2023-01-09 17:59:52 +01:00
b0e5d02c9a
kernel: Turn off console logging before starting the init process
continuous-integration/drone/push Build is passing
continuous-integration/drone/pr Build is failing
2023-01-08 15:32:59 +01:00
0c73d69a70
Kernel: Fix shadow 12GiB reserved entry when running QEMU without KVM on
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continuous-integration/drone/push Build is passing
Fix inspired by: https://github.com/serenityos/serenity/pull/16345
2023-01-07 20:58:12 +01:00
fde1727218
KernelVM: Expand the available VM range
continuous-integration/drone/push Build is passing
2023-01-07 12:33:00 +01:00
8ee634d19b
Kernel/Scheduler: Display addresses starting with 0x when creating threads
continuous-integration/drone/push Build is passing
2023-01-07 12:02:14 +01:00
7e377ef712
Implement printf()
continuous-integration/drone/push Build is passing
2023-01-07 01:49:26 +01:00
29bd8a69fa
MemoryManager: Add helper functions to validate arbitrary ranges of userspace memory
2023-01-07 01:39:33 +01:00
a8a64863c8
kernel, libc: Add clock_gettime()
2023-01-07 00:21:08 +01:00
6e9b4491a6
MemoryManager: Add copy_to_user() and copy_to_user_typed()
2023-01-07 00:17:16 +01:00
e37280b0e5
ELFLoader: Set both the read-write and execute flags if the section has both
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Not good for W^X, but the compiler decides to squash everything into a single program header :(
2023-01-06 17:34:24 +01:00
87a4bc91d8
arch/x86_64: Nicer display for page faults that shows a human-readable version of the error code
2023-01-06 17:31:22 +01:00
293b979e75
ELFLoader: Do not crash on non-page-aligned sections
2023-01-06 13:30:17 +01:00
