RGBCube/serenity
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5307 commits

Author SHA1 Message Date
Andreas Kling
cac557eee0 Kernel: Make Region::try_create_user_accessible() OOM-safe 
Previously we would simply assume that Region allocation always
succeeded. There is still one such assumption when splitting user
regions inside a Space. That will be dealt with in a separate commit.
 2021-07-11 18:11:31 +02:00
Andreas Kling
241bbce264 Kernel: LoopbackAdapter::create() => try_create() 
Allow this to fail (although we VERIFY that it succeeds during boot
for now, since we don't want to boot without a loopback adapter.)
 2021-07-11 18:00:31 +02:00
Andreas Kling
e4dfb0fdf3 Kernel: Make NetworkAdapter::class_name() return a StringView 2021-07-11 17:59:38 +02:00
Andreas Kling
68f2250768 Kernel: Make VMObject::class_name() return a StringView 2021-07-11 17:57:52 +02:00
Andreas Kling
88d490566f Kernel: Rename various *VMObject::create*() => try_create() 
try_*() implies that it can fail (and they all return RefPtr with
nullptr signalling failure.)
 2021-07-11 17:55:29 +02:00
Andreas Kling
af8c74a328 Kernel: Make SharedInodeVMObject allocation OOM-safe 2021-07-11 17:52:07 +02:00
Andreas Kling
59049ae4b7 Kernel: Store VMObject physical pages in a FixedArray 
Let's enforce the invariant that VMObjects don't shrink or grow by
storing the pages in a FixedArray.
 2021-07-11 17:42:31 +02:00
Andreas Kling
7d096a1287 Kernel: Make VMObject vend physical page range as a span 
Stop exposing the internal data structure used for storing the physical
pages and return a Span<RefPtr<PhysicalPage>> instead.
 2021-07-11 17:42:31 +02:00
Andreas Kling
846685fca2 Kernel: Remove bogus VMObject resizing in VirtIOGPU 
It is not legal to resize a VMObject after it has been created.
As far as I can tell, this code would never actually run since the
object was already populated with physical pages due to using
AllocationStrategy::AllocateNow.
 2021-07-11 17:42:31 +02:00
Andreas Kling
055726ecf5 Kernel: Remove unused MemoryManager::find_region_from_vaddr() 2021-07-11 17:42:31 +02:00
Andreas Kling
112c7f9a5b Kernel: Remove unused MemoryManager::m_physical_page_entries_free 2021-07-11 15:15:57 +02:00
Andreas Kling
0afccb560b Kernel: Remove some duplicate forward declarations 2021-07-11 15:15:57 +02:00
Andreas Kling
b2cd9b2c88 Kernel: Remove pointless ref-counting from PhysicalRegion 
These are not multiple-owner objects and have no use for ref-counting.
Make them simple value types instead (not eternal heap-allocated.)
 2021-07-11 15:15:57 +02:00
Max Wipfli
29d53cbee2 Kernel: Return correct error numbers for the mkdir syscall 
Previously, VirtualFileSystem::mkdir() would always return ENOENT if
no parent custody was returned by resolve_path(). This is incorrect when
e.g. the user has no search permission in a component of the path
prefix (=> EACCES), or if on component of the path prefix is a file (=>
ENOTDIR). This patch fixes that behavior.
 2021-07-11 14:59:57 +02:00
Andreas Kling
25e850ebb1 Kernel: Remove krealloc() 
This was only used by a single class (AK::ByteBuffer) in the kernel
and not in an OOM-safe way.

Now that ByteBuffer no longer uses it, there's no need for the kernel
heap to burden itself with supporting this.
 2021-07-11 14:14:51 +02:00
Andreas Kling
0718bd264c Kernel: Remove some no-longer-needed C library functions 
Now that we no longer demangle symbols in the kernel, we don't need to
provide stuff like malloc(), memchr(), free(), etc to the demangler.
 2021-07-11 14:14:51 +02:00
Andreas Kling
f684742f15 Kernel: VERIFY_NOT_REACHED in un-sized operator delete 
All deletes in kernel code should now be of known size. :^)
 2021-07-11 14:14:51 +02:00
Andreas Kling
43d7a7f274 Kernel: Use kfree_sized() in KString 2021-07-11 14:14:51 +02:00
Andreas Kling
d38b4e4665 Kernel: Add kfree_sized(), kfree() with a known allocation size 
C++14 gave us sized operator delete, but we haven't been taking
advantage of it. Let's get to a point where it can help us by
adding kfree_sized(void*, size_t).
 2021-07-11 14:14:51 +02:00
Andreas Kling
98080497d2 Kernel: Use Forward.h headers more 2021-07-11 14:14:51 +02:00
Max Wipfli
9ab528ff5c Kernel: Make KLexicalPath::basename() more compliant 
This removes some assertions from KLexicalPath::basename() by supporting
paths with trailing slashes, empty paths, paths consisting of only
slashes and paths with ending "." and ".." segments.
 2021-07-11 14:10:58 +02:00
Andreas Kling
c9f6786e8b Kernel: Make various T::class_name() and similar return StringView 
Instead of returning char const*, we can also give you a StringView.
 2021-07-11 01:46:59 +02:00
Andreas Kling
fa9111ac46 Kernel: Rename ProcFSComponentsRegistrar => ProcFSComponentRegistry 
This matches the formatting used in SysFS.
 2021-07-11 01:40:26 +02:00
Andreas Kling
c1143e1bae Kernel: Remove friend classes from ProcFSComponentsRegistrar 2021-07-11 01:39:51 +02:00
Andreas Kling
358a7cc448 Kernel: Rename SysFS related classes in BIOS code 
Give them names that sound related to SysFS.
 2021-07-11 01:38:01 +02:00
Andreas Kling
84ae2b6f00 Kernel: Use nested namespace declarations in ACPI code 2021-07-11 01:36:30 +02:00
Andreas Kling
b1c68dd235 Kernel: Rename SysFS related classes in ACPI code 
Give them names that sound related to SysFS.
 2021-07-11 01:35:17 +02:00
Andreas Kling
805319ed30 Kernel: Replace "Folder" => "Directory" everywhere 
Folders are a GUI concept, file systems have directories. :^)
 2021-07-11 01:33:40 +02:00
Andreas Kling
5ec3f5433e Kernel: Rename SysFS related classes in PCI code 
Give them names that sound related to SysFS.
 2021-07-11 01:31:48 +02:00
Andreas Kling
c74b3a310f Kernel: Remove pointless lock/unlock in SysFS constructor 2021-07-11 01:18:20 +02:00
Andreas Kling
a9decf5aa6 Kernel: Remove all friend declarations from SysFSComponentRegistry 
Let them access the class using public API instead.
 2021-07-11 01:17:57 +02:00
Andreas Kling
d40ea1a0a8 Kernel: Move SystemExposed.* => FileSystem/SysFSComponent.* 2021-07-11 01:14:53 +02:00
Andreas Kling
807aadbe6e Kernel: Remove some dead code and unused includes in SysFS files 2021-07-11 01:13:24 +02:00
Andreas Kling
98acebf56b Kernel: Move SysFS forward declarations to FileSystem/Forward.h 2021-07-11 01:09:48 +02:00
Andreas Kling
60a7a9d523 Kernel: Rename SystemExposedFolder => SysFSDirectory 
"Folder" is a GUI concept, let's call this "Directory".
Also, "System" is completely generic, so let's be more specific and
call this "SysFS..."
 2021-07-11 01:07:27 +02:00
Andreas Kling
517170a986 Kernel: Rename SystemExposedComponent => SysFSComponent 2021-07-11 01:06:27 +02:00
Andreas Kling
27244eb0ee Kernel: Rename SystemRegistrar => SysFSComponentRegistry 2021-07-11 01:05:26 +02:00
Andreas Kling
ea8578bf11 Kernel: Remove unnecessary includes in FileSystem.{cpp,h} 2021-07-11 01:01:54 +02:00
Andreas Kling
55c6e08c9e Kernel: Remove unnecessary String allocation in SystemExposedFolder 2021-07-11 00:58:23 +02:00
Andreas Kling
66f483b1a1 Kerne: Switch SysFS to east-const style 2021-07-11 00:56:53 +02:00
Andreas Kling
7a4e6257b7 Kernel: Switch Custody to east-const style 2021-07-11 00:51:38 +02:00
Andreas Kling
4238e2e9be Kernel: Only allow looking up Mounts by InodeIdentifier 
Let's simplify the interface by not allowing lookup by Inode&.
 2021-07-11 00:51:06 +02:00
Andreas Kling
6a27de2d94 Kernel: Make VirtualFileSystem::Mount a top-level class 
And move it to its own compilation unit.
 2021-07-11 00:51:06 +02:00
Andreas Kling
79552c91d5 Kernel: Rename BlockBasedFS => BlockBasedFileSystem 2021-07-11 00:34:36 +02:00
Andreas Kling
502bbacea0 Kernel: Rename FileBackedFS => FileBackedFileSystem 2021-07-11 00:33:27 +02:00
Andreas Kling
07c4c89297 Kernel: Make VirtualFileSystem::sync() static 2021-07-11 00:26:17 +02:00
Andreas Kling
0d39bd04d3 Kernel: Rename VFS => VirtualFileSystem 2021-07-11 00:25:24 +02:00
Andreas Kling
d53d9d3677 Kernel: Rename FS => FileSystem 
This matches our common naming style better.
 2021-07-11 00:20:38 +02:00
Ralf Donau
8ee3a5e09e Kernel: Logic fix in the pledge syscall 
Pledge should check m_has_promises. Calling pledge("", nullptr)
does not fail on an already pledged process anymore.
 2021-07-10 21:59:29 +02:00
Tom
02651f8dc6 Kernel: Make VirtIO GPU buffer flipping more spec compliant 
The spec requires a flush after setting the new buffer resource id,
which is required by QEMUs SDL backend but not the GTK backend. This
brings us in line with the spec and makes it work for the SDL backend.
 2021-07-10 21:24:52 +02:00