RGBCube/serenity
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23664 commits 1 branch 0 tags 230 MiB
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4932 commits

Author SHA1 Message Date
Andreas Kling
2dfdaafb23 Kernel: Use "new (nothrow)" for SharedInodeVMObject 2021-07-11 21:56:26 +02:00
Brian Gianforcaro
425195e93f Kernel: Standardize the header include style to 'include <Kernel/...>' 
This is the overwhelming standard in the project, but there were some
cases in the kernel which were not following it, lets fix those cases!
 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
6f408e7f0d Kernel: Remove unused header includes in root kernel tree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
28cf9ffe90 Kernel: Remove unused header includes in Bus subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
187a8f6896 Kernel: Remove unused header includes in ACPI subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
661809408e Kernel: Remove unused header includes in Heap subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
abe72ede7a Kernel: Remove unused header includes in Graphics subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
9814082b5e Kernel: Remove unused header includes in Interrupts subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
8211aee4b5 Kernel: Remove unused header includes in TTY subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
e18be7f5c7 Kernel: Remove unused header includes in Storage subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
da665077ce Kernel: Remove unused header includes in Arch subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
1c43836990 Kernel: Remove unused header includes in FileSystem subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
5743561d32 Kernel: Remove unused header includes in Net subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
ea238e7ac3 Kernel: Remove unused header includes in Devices subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
b1740e410b Kernel: Remove unused header includes in Time subtree 2021-07-11 21:37:38 +02:00
Brian Gianforcaro
9044e21ed4 Kernel: Remove unused header includes in VM subtree 2021-07-11 21:37:38 +02:00
Liav A
a8c35b6a93 Kernel: Fix condition on whether to initialize a display adapter or not 2021-07-11 21:16:33 +02:00
Liav A
b882e5ff6b Kernel/Graphics: Move Intel graphics related code to a separate folder 2021-07-11 21:16:33 +02:00
Andrew Kaster
da0095855e Kernel: Print end-inclusive ranges in MemoryManager initialization 
This brings the physical and virtual addresses printed to dmesg more in
line with inclusive ranges printed elsewhere in the project.
 2021-07-11 19:42:00 +02:00
Andrew Kaster
3f0dcd63dc Kernel: Fix TmpFS resize behavior around INT32_MAX for 32-bit systems 
We need some overflow checks due to the implementation of TmpFS.
When size_t is 32 bits and off_t is 64 bits, we might overflow our
KBuffer max size and confuse the KBuffer set_size code, causing a VERIFY
failure. Make sure that resulting offset + size will fit in a size_t.
Another constraint, we make sure that the resulting offset + size will
be less than half of the maximum value of a size_t, because we double
the KBuffer size each time we resize it.
 2021-07-11 19:42:00 +02:00
Andrew Kaster
578d45b480 Kernel: Create and use USER_RANGE_CEILING 
We had an inconsistency in valid user addresses. is_user_range() was
checking against the kernel base address, but previous changes caused
the maximum valid user addressable range to be 32 MiB below that.

This patch stops mmap(MAP_FIXED) of a range between these two bounds
from panic-ing the kernel in RangeAllocator::allocate_specific.
 2021-07-11 19:42:00 +02:00
Andrew Kaster
ab196b484a Kernel: Add formatter for Kernel::Range 
This is very useful when debugging memory allocation in the kernel
 2021-07-11 19:42:00 +02:00
Andreas Kling
f244a25f71 Kernel: Rename VMObject::clone() => try_clone() 
And fix an unsafe dereference in SharedInodeVMObject::try_clone()
to make it OOM-safe.
 2021-07-11 19:09:02 +02:00
Andreas Kling
d85bce57b3 Kernel: Rename Region::create_kernel_only() => try_create_kernel_only() 2021-07-11 18:59:41 +02:00
Andreas Kling
cd7a49b90d Kernel: Make Region splitting OOM-safe 
Region allocation failures during splitting are now propagated all the
way out to where we can return ENOMEM for them.
 2021-07-11 18:52:27 +02:00
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