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2021-03-04Kernel: Create /dev/full with mode 0666Brendan Coles
2021-03-03Kernel: Move Kernel CommandLine parsing to strongly typed API.Brian Gianforcaro
Previously all of the CommandLine parsing was spread out around the Kernel. Instead move it all into the Kernel CommandLine class, and expose a strongly typed API for querying the state of options.
2021-03-02Kernel: Make Thread use AK::Time internallyBen Wiederhake
This commit is very invasive, because Thread likes to take a pointer and write to it. This means that translating between timespec/timeval/Time would have been more difficult than just changing everything that hands a raw pointer to Thread, in bulk.
2021-03-01Kernel: Fix scrolling up in VMwareTom
The mouse wheel delta is provided as a signed 8 bit value.
2021-02-28Kernel: Use default con/de-structorsBen Wiederhake
This may seem like a no-op change, however it shrinks down the Kernel by a bit: .text -432 .unmap_after_init -60 .data -480 .debug_info -673 .debug_aranges 8 .debug_ranges -232 .debug_line -558 .debug_str -308 .debug_frame -40 With '= default', the compiler can do more inlining, hence the savings. I intentionally omitted some opportunities for '= default', because they would increase the Kernel size.
2021-02-23Everywhere: Rename ASSERT => VERIFYAndreas Kling
(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED) Since all of these checks are done in release builds as well, let's rename them to VERIFY to prevent confusion, as everyone is used to assertions being compiled out in release. We can introduce a new ASSERT macro that is specifically for debug checks, but I'm doing this wholesale conversion first since we've accumulated thousands of these already, and it's not immediately obvious which ones are suitable for ASSERT.
2021-02-20Kernel: Slap a handful more things with UNMAP_AFTER_INITAndreas Kling
2021-02-19Kernel: Slap UNMAP_AFTER_INIT on a bunch more functionsAndreas Kling
We're now able to unmap 100 KiB of kernel text after init. :^)
2021-02-19Kernel: Slap UNMAP_AFTER_INIT on a whole bunch of functionsAndreas Kling
There's no real system here, I just added it to various functions that I don't believe we ever want to call after initialization has finished. With these changes, we're able to unmap 60 KiB of kernel text after init. :^)
2021-02-17Kernel: Convert dbgprintf()/klog() => dbgln()/dmesgln() in UHCI codeAndreas Kling
2021-02-15Kernel: Handle 'Menu' key on PS/2 keyboardJean-Baptiste Boric
2021-02-15Kernel: Ignore unobserved BlockResult from Thread::SleepBrian Gianforcaro
Suppress these in preparation for making BlockResult [[nodiscard]].
2021-02-15Kernel: Add WaitQueue::wait_forever and it use it for all infinite waits.Brian Gianforcaro
In preparation for marking BlockingResult [[nodiscard]], there are a few places that perform infinite waits, which we never observe the result of the wait. Instead of suppressing them, add an alternate function which returns void when performing and infinite wait.
2021-02-14Kernel: Assert if rounding-up-to-page-size would wrap around to 0Andreas Kling
If we try to align a number above 0xfffff000 to the next multiple of the page size (4 KiB), it would wrap around to 0. This is most likely never what we want, so let's assert if that happens.
2021-02-08Kernel: Factor address space management out of the Process classAndreas Kling
This patch adds Space, a class representing a process's address space. - Each Process has a Space. - The Space owns the PageDirectory and all Regions in the Process. This allows us to reorganize sys$execve() so that it constructs and populates a new Space fully before committing to it. Previously, we would construct the new address space while still running in the old one, and encountering an error meant we had to do tedious and error-prone rollback. Those problems are now gone, replaced by what's hopefully a set of much smaller problems and missing cleanups. :^)
2021-02-08Everywhere: Replace dbgln<flag>(...) with dbgln_if(flag, ...)AnotherTest
Replacement made by `find Kernel Userland -name '*.h' -o -name '*.cpp' | sed -i -Ee 's/dbgln\b<(\w+)>\(/dbgln_if(\1, /g'`
2021-02-05Kernel: Try to detect Sound Blaster 16 before creating an instanceLiav A
We shouldn't create a SB16 instance without checking if the Sound Blaster 16 card is actually installed in the system.
2021-02-02Base: Rename some keymaps to use xx-xx format where appropriateLinus Groh
- en.json -> en-us.json - gb.json -> en-gb.json - ptbr.json -> pt-br.json - ptpt.json -> pt-pt.json
2021-02-01Kernel: Introduce the MemoryDeviceLiav A
This is a character device that is being used by the dmidecode utility. We only allow to map the BIOS ROM area to userspace with this device.
2021-02-01Kernel+LibKeyboard: Define the default keymap only in one placeBen Wiederhake
Because it was 'static const' and also shared with userland programs, the default keymap was defined in multiple places. This commit should save several kilobytes! :^)
2021-02-01LibKeyboard: Don't assert on failureBen Wiederhake
2021-02-01LibKeyboard+keymap: Support querying the keymap via commandlineBen Wiederhake
2021-02-01Kernel+LibKeyboard: Enable querying the current keymapBen Wiederhake
2021-01-28BXVGADevice+MBVGADevice: Correctly check page-aligned mmapsPeter Elliott
In ab14b0ac64cd8bcaf7060050a7ec5a99cf7bd121, mmap was changed so that the size of the region is aligned before it was passed to the device driver. The previous logic would assert when the framebuffer size was not a multiple of the page size. I've also taken the liberty of returning an error on mmap failure rather than asserting.
2021-01-26Meta: Split debug defines into multiple headers.asynts
The following script was used to make these changes: #!/bin/bash set -e tmp=$(mktemp -d) echo "tmp=$tmp" find Kernel \( -name '*.cpp' -o -name '*.h' \) | sort > $tmp/Kernel.files find . \( -path ./Toolchain -prune -o -path ./Build -prune -o -path ./Kernel -prune \) -o \( -name '*.cpp' -o -name '*.h' \) -print | sort > $tmp/EverythingExceptKernel.files cat $tmp/Kernel.files | xargs grep -Eho '[A-Z0-9_]+_DEBUG' | sort | uniq > $tmp/Kernel.macros cat $tmp/EverythingExceptKernel.files | xargs grep -Eho '[A-Z0-9_]+_DEBUG' | sort | uniq > $tmp/EverythingExceptKernel.macros comm -23 $tmp/Kernel.macros $tmp/EverythingExceptKernel.macros > $tmp/Kernel.unique comm -1 $tmp/Kernel.macros $tmp/EverythingExceptKernel.macros > $tmp/EverythingExceptKernel.unique cat $tmp/Kernel.unique | awk '{ print "#cmakedefine01 "$1 }' > $tmp/Kernel.header cat $tmp/EverythingExceptKernel.unique | awk '{ print "#cmakedefine01 "$1 }' > $tmp/EverythingExceptKernel.header for macro in $(cat $tmp/Kernel.unique) do cat $tmp/Kernel.files | xargs grep -l $macro >> $tmp/Kernel.new-includes ||: done cat $tmp/Kernel.new-includes | sort > $tmp/Kernel.new-includes.sorted for macro in $(cat $tmp/EverythingExceptKernel.unique) do cat $tmp/Kernel.files | xargs grep -l $macro >> $tmp/Kernel.old-includes ||: done cat $tmp/Kernel.old-includes | sort > $tmp/Kernel.old-includes.sorted comm -23 $tmp/Kernel.new-includes.sorted $tmp/Kernel.old-includes.sorted > $tmp/Kernel.includes.new comm -13 $tmp/Kernel.new-includes.sorted $tmp/Kernel.old-includes.sorted > $tmp/Kernel.includes.old comm -12 $tmp/Kernel.new-includes.sorted $tmp/Kernel.old-includes.sorted > $tmp/Kernel.includes.mixed for file in $(cat $tmp/Kernel.includes.new) do sed -i -E 's/#include <AK\/Debug\.h>/#include <Kernel\/Debug\.h>/' $file done for file in $(cat $tmp/Kernel.includes.mixed) do echo "mixed include in $file, requires manual editing." done
2021-01-25Kernel: Hoist VM range allocation up to sys$mmap() itselfAndreas Kling
Instead of letting each File subclass do range allocation in their mmap() override, do it up front in sys$mmap(). This makes us honor alignment requests for file-backed memory mappings and simplifies the code somwhat.
2021-01-25Everywhere: Hook up remaining debug macros to Debug.h.asynts
2021-01-25Everywhere: Debug macros instead of constexpr.asynts
This was done with the following script: find . \( -name '*.cpp' -o -name '*.h' -o -name '*.in' \) -not -path './Toolchain/*' -not -path './Build/*' -exec sed -i -E 's/dbgln<debug_([a-z_]+)>/dbgln<\U\1_DEBUG>/' {} \; find . \( -name '*.cpp' -o -name '*.h' -o -name '*.in' \) -not -path './Toolchain/*' -not -path './Build/*' -exec sed -i -E 's/if constexpr \(debug_([a-z0-9_]+)/if constexpr \(\U\1_DEBUG/' {} \;
2021-01-25Everywhere: Remove unnecessary debug comments.asynts
It would be tempting to uncomment these statements, but that won't work with the new changes. This was done with the following commands: find . \( -name '*.cpp' -o -name '*.h' -o -name '*.in' \) -not -path './Toolchain/*' -not -path './Build/*' -exec awk -i inplace '$0 !~ /\/\/#define/ { if (!toggle) { print; } else { toggle = !toggle } } ; $0 ~/\/\/#define/ { toggle = 1 }' {} \; find . \( -name '*.cpp' -o -name '*.h' -o -name '*.in' \) -not -path './Toolchain/*' -not -path './Build/*' -exec awk -i inplace '$0 !~ /\/\/ #define/ { if (!toggle) { print; } else { toggle = !toggle } } ; $0 ~/\/\/ #define/ { toggle = 1 }' {} \;
2021-01-25Everywhere: Use CMake to generate AK/Debug.h.asynts
This was done with the help of several scripts, I dump them here to easily find them later: awk '/#ifdef/ { print "#cmakedefine01 "$2 }' AK/Debug.h.in for debug_macro in $(awk '/#ifdef/ { print $2 }' AK/Debug.h.in) do find . \( -name '*.cpp' -o -name '*.h' -o -name '*.in' \) -not -path './Toolchain/*' -not -path './Build/*' -exec sed -i -E 's/#ifdef '$debug_macro'/#if '$debug_macro'/' {} \; done # Remember to remove WRAPPER_GERNERATOR_DEBUG from the list. awk '/#cmake/ { print "set("$2" ON)" }' AK/Debug.h.in
2021-01-22Kernel: Make device generate their own namesJean-Baptiste Boric
Besides removing the monolithic DevFSDeviceInode::determine_name() method, being able to determine a device's name inside the /dev hierarchy outside of DevFS has its uses.
2021-01-22Everywhere: Replace a bundle of dbg with dbgln.asynts
These changes are arbitrarily divided into multiple commits to make it easier to find potentially introduced bugs with git bisect.
2021-01-22Everywhere: Replace a bundle of dbg with dbgln.asynts
These changes are arbitrarily divided into multiple commits to make it easier to find potentially introduced bugs with git bisect.
2021-01-20Kernel+LibC: Turn errno codes into a strongly typed enumAndreas Kling
..and allow implicit creation of KResult and KResultOr from ErrnoCode. This means that kernel functions that return those types can finally do "return EINVAL;" and it will just work. There's a handful of functions that still deal with signed integers that should be converted to return KResults.
2021-01-15Kernel: Make Process::allocate_region*() return KResultOr<Region*>Andreas Kling
This allows region allocation to return specific errors and we don't have to assume every failure is an ENOMEM.
2021-01-12AK: Simplify constructors and conversions from nullptr_tLenny Maiorani
Problem: - Many constructors are defined as `{}` rather than using the ` = default` compiler-provided constructor. - Some types provide an implicit conversion operator from `nullptr_t` instead of requiring the caller to default construct. This violates the C++ Core Guidelines suggestion to declare single-argument constructors explicit (https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c46-by-default-declare-single-argument-constructors-explicit). Solution: - Change default constructors to use the compiler-provided default constructor. - Remove implicit conversion operators from `nullptr_t` and change usage to enforce type consistency without conversion.
2021-01-11Kernel: Convert a bunch of String::format() => String::formatted()Andreas Kling
2021-01-11SinglyLinkedList: Implement `find` in terms of `AK::find`Lenny Maiorani
Problem: - The implementation of `find` is coupled to the implementation of `SinglyLinkedList`. Solution: - Decouple the implementation of `find` from the class by using a generic `find` algorithm.
2021-01-11DoublyLinkedList: Implement `find` in terms of `AK::find`Lenny Maiorani
Problem: - The implementation of `find` is coupled to the implementation of `DoublyLinkedList`. - `append` and `prepend` are implemented multiple times so that r-value references can be moved from into the new node. This is probably not called very often because a pr-value or x-value needs to be used here. Solution: - Decouple the implementation of `find` from the class by using a generic `find` algorithm. - Make `append` and `prepend` be function templates so that they can have binding references which can be forwarded.
2021-01-11Everywhere: Replace a bundle of dbg with dbgln.asynts
These changes are arbitrarily divided into multiple commits to make it easier to find potentially introduced bugs with git bisect.Everything:
2021-01-11Everywhere: Replace a bundle of dbg with dbgln.asynts
These changes are arbitrarily divided into multiple commits to make it easier to find potentially introduced bugs with git bisect.Everything:
2021-01-09Everywhere: Replace a bundle of dbg with dbgln.asynts
These changes are arbitrarily divided into multiple commits to make it easier to find potentially introduced bugs with git bisect.Everything: The modifications in this commit were automatically made using the following command: find . -name '*.cpp' -exec sed -i -E 's/dbg\(\) << ("[^"{]*");/dbgln\(\1\);/' {} \;
2021-01-09Kernel: Don't put gratuitous cursing in kernel logAndreas Kling
2021-01-09Kernel/USB: Implement test transferJesse Buhagiar
We can now test a _very_ basic transaction via `do_debug_transfer()`. This function merely attaches some TDs to the LSCTRL queue head and points some input and output buffers. We then sense an interrupt with USBSTS value of 1, meaning Interrupt On Completion (of the transaction). At this point, the input buffer is filled with some data.
2021-01-09Kernel/USB: Simplify scheduleJesse Buhagiar
It seems like Haiku and Grub do this, so let's not bother with any fancy timing stuff for now (to at least get _something_ working...)
2021-01-09Kernel/USB: Ignore shared IRQsJesse Buhagiar
According the USB spec/UHCI datasheet (as well as the Linux and BSD source code), if we receive an IRQ and USBSTS is 0, then the IRQ does not belong to us and we should immediately jump out of the handler.
2021-01-09Kernel/USB: Add basic root port detection/managementJesse Buhagiar
We can now read/write to the two root ports exposed to the UHCI controller, and detect when a device is plugged in or out via a kernel process that constantly scans the port for any changes. This is very basic, but is a bit of fun to see the kernel detecting hardware on the fly :^)
2021-01-09Kernel/USB: Implement UHCI Data structuresJesse Buhagiar
Implemented both Queue Heads and Transfer Descriptors. These are required to actually perform USB transactions. The UHCI driver sets up a pool of these that can be allocated when we need them. It seems some drivers have these statically allocated, so it might be worth looking into that, but for now, the simple way seems to be to allocate them on the fly as we need them, and then release them.
2021-01-09Kernel/USB: Prevent system crash via correct UHCI inititilisationJesse Buhagiar
It seems that not setting the framelist address register was causing the entire system to lock up as it generated an insane interrupt storm in the IRQ handler for the UHCI controller. We now allocate a 4KiB aligned page via `MemoryManager::allocate_supervisor_physical_page()` and set every value to 1. In effect, this creates a framelist with each entry being a "TERMINATE" entry in which the controller stalls until its' 1mS time slice is up. Some more registers have also been set for consistency, though it seems like this don't need to be set explicitly in software.
2021-01-09Kernel/USB: Move USB classes into `USB` namespaceJesse Buhagiar
The entire USB spec involves more than just UHCI, so let's put everything into it's own nice namespace :^)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 21:48:17 +0000