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Author	SHA1	Message	Date
apio	78cea0a47e	x86_64/MMU: Map all physical memory into the higher half instead of using recursive mapping ... This still has a few problems. Notably, we are not using huge pages for this mapping, which would be a lot more efficient. Right now, used memory is 8.1 MiB at boot for a 256MiB system. But after improving it, this system will be much better than recursive mapping. fork() will be MUCH easier to implement, for example.	2023-02-27 13:31:35 +01:00
apio	5b43345b7d	kernel: Implement creating file inodes in tmpfs directories	2023-02-25 19:22:05 +01:00
apio	9248a5b3cc	tmpfs: make the root inode a DirInode instead of a FileInode	2023-02-25 19:08:55 +01:00
apio	cca4743a51	tmpfs: add DirInode skeleton	2023-02-25 19:06:50 +01:00
apio	0635f1c243	Update README.md with realism	2023-02-25 18:19:00 +01:00
apio	b71d899b52	tmpfs: rename tmpfs::Inode to tmpfs::FileInode	2023-02-25 18:11:39 +01:00
apio	05b627d037	tmpfs: Make m_next_inode_number atomic	2023-02-25 18:06:23 +01:00
apio	6daad7787a	kernel: Rename FileSystem::root() to root_inode() and add a shortcut for the root filesystem's root inode	2023-02-25 18:05:25 +01:00
apio	ddc4692671	kernel: Make a factory function for filesystem creation of inodes, and add inode numbers ... Now every filesystem must provide fs->create_file_inode() for new inodes :)	2023-02-25 18:03:11 +01:00
apio	5edd316198	kernel: Add a subclass of VFS::Inode to make it easier to implement file inodes	2023-02-25 17:54:01 +01:00
apio	045efc7046	kernel, luna: Port non-VFS changes over from pull request #22 ... OwnedPtr, SharedPtr: Add operator bool Option, Result: Make try_move_value() non-const since it modifies the Option kernel: Switch to a stack we control for the main task as soon as we leave early boot Heap: Fix GPF caused when making many small allocations Heap: Avoid accessing a block after it's potentially deleted luna: Skip UBSAN.cpp in CMakeLists as that's not implemented yet luna: Use spinlocks in the heap implementation kernel, luna: Move Spinlock.h to luna Option: Use __builtin_launder to ensure that the compiler doesn't label this as UB SharedPtr: Implement make_shared using adopt_shared SharedPtr: Delete ptr on failure in all adopt_shared* functions	2023-02-25 17:47:58 +01:00
apio	6fc02e042a	SharedPtr: Implement make_shared using adopt_shared	2023-02-25 17:45:41 +01:00
apio	620810d720	SharedPtr: Delete ptr on failure in all adopt_shared* functions	2023-02-25 17:45:41 +01:00
apio	32ada00b72	kernel: Add a guard page to the bootstrap stack so that we can catch more stack overflows	2023-02-25 17:45:41 +01:00
apio	dc795ff491	luna: Introduce fail(...), a replacement for expect(false, ...)	2023-02-25 17:45:40 +01:00
apio	5f6a659fa1	kernel: Enable UBSAN when building in debug mode	2023-02-25 17:45:40 +01:00
apio	d82b3f809b	luna: Add UB sanitizer, for both kernel-space and userspace	2023-02-25 17:45:40 +01:00
apio	96a213ec5c	libc: Make dbgln() also print a newline in userspace ... Previously, dbgln() only printed a newline in kernel-space.	2023-02-25 17:45:40 +01:00
apio	e9e1bef89c	OwnedPtr, SharedPtr: Add operator bool	2023-02-25 16:27:36 +01:00
apio	ae22321648	Option, Result: Make try_move_value() non-const since it modifies the Option	2023-02-25 16:22:11 +01:00
apio	d842443869	kernel: Switch to a stack we control for the main task as soon as we leave early boot ... 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
apio	37bbc04719	Heap: Fix GPF caused when making many small allocations ... Apparently space was too tight to split(), but we did it anyways, corrupting the next block. This patch fixes this behavior.	2023-02-17 22:47:15 +01:00
apio	4697a16206	Heap: Avoid accessing a block after it's potentially deleted	2023-02-14 20:17:31 +01:00
apio	08d5d727ee	luna: Skip UBSAN.cpp in CMakeLists as that's not implemented yet	2023-02-14 20:10:02 +01:00
apio	38bd3d3eef	luna: Use spinlocks in the heap implementation	2023-02-14 20:07:30 +01:00
apio	4e88a7482c	kernel, luna: Move Spinlock.h to luna	2023-02-14 20:05:00 +01:00
apio	6eff41e7af	Option: Use __builtin_launder to ensure that the compiler doesn't label this as UB	2023-02-14 20:03:29 +01:00
apio	79078ff21e	SharedPtr: Implement make_shared using adopt_shared	2023-02-14 19:59:44 +01:00
apio	cb4246b98d	kernel: Start working on a VFS implementation using OOP and SharedPtr	2023-02-03 22:20:00 +01:00
apio	51024f879d	SharedPtr: Delete ptr on failure in all adopt_shared* functions	2023-02-03 22:20:00 +01:00
apio	89958fbc74	kernel: Show a more technical message on failure to remap kernel data sections	2023-02-02 21:26:07 +01:00
apio	c05a87c7ff	kernel: Reenable the text console on panic	2023-02-01 22:58:31 +01:00
apio	e9a009478f	SharedPtr: Fixes and support for casting to other SharedPtr types	2023-01-31 19:59:06 +01:00
apio	3a84e4998c	kernel/Thread: Add FIXME	2023-01-31 17:02:49 +01:00
apio	35501407c1	kernel: Stop shouting when creating threads	2023-01-25 21:25:34 +01:00
apio	fd0e29ede5	kernel: Add FIXME in copy_to_user()/copy_from_user()	2023-01-25 21:22:14 +01:00
apio	8098ff0616	tools: Avoid rebuilding libc and friends every single time ... We do this by preserving timestamps when copying headers so CMake doesn't think they have changed.	2023-01-25 21:16:20 +01:00
apio	635437a4a4	luna: Add a new idiomatic way to mark unused parameters as used while keeping their names ... Just call ignore(...)	2023-01-25 21:14:44 +01:00
apio	39042cbbd4	kernel: PCI constness updates	2023-01-25 21:01:45 +01:00
apio	fa29d6e9b9	kernel: Rename PCI::callback_t to PCI::Callback	2023-01-25 20:58:59 +01:00
apio	15c89a3592	kernel: Implement filtered PCI scans	2023-01-23 21:24:05 +01:00
apio	3a4ca73df7	kernel: Sync log output	2023-01-23 20:42:34 +01:00
apio	6677c643a5	kernel: Start scanning the PCI bus for devices	2023-01-23 20:07:17 +01:00
apio	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
apio	8cb9c14b1e	luna/Format: Make output_(pure_)integer_data take a const reference to vstate	2023-01-22 17:36:02 +01:00
apio	7f8a8cdcaf	kernel, libc: Add an usleep() system call and use that to implement usleep() and sleep() in libc	2023-01-22 15:00:20 +01:00
apio	d5b1d72396	x86_64/MMU: Map the kernel page directory to virtual memory ... 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
apio	a7a38d3433	Bitmap: Add a fallible variant of match_region() that does not crash if arguments are out of range ... This lets us call deallocate_memory() with any address and it will not crash.	2023-01-22 14:25:51 +01:00
apio	cb59a4e0e3	libc: Add assert.h	2023-01-22 12:51:30 +01:00
apio	34a9b35037	Option, Result: Propagate caller locations when erroring out	2023-01-22 12:00:52 +01:00