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988 commits

Author SHA1 Message Date
Robin Burchell
5babcac289 Build: Install most headers to Root (and libcore.a/libgui.a) 
This makes out-of-tree linking possible. And at the same time, add a
CMakeToolchain.txt file that can be used to build arbitrary cmake-using
applications on Serenity by pointing to the CMAKE_TOOLCHAIN_FILE when
running cmake:

    -DCMAKE_TOOLCHAIN_FILE=~/code/serenity/Toolchain/CMakeToolchain.txt
 2019-05-17 21:59:48 +02:00
Andreas Kling
2d98f4e28f Kernel: Make the times() syscall return something other than 0. 
Based on the description I read, this syscall doesn't seem completely
reasonable, but let's at least return a number that is likely to change
between invocations in case somebody depends on that happening.
 2019-05-17 20:19:29 +02:00
Andreas Kling
a182ea8c60 Kernel: After creating our GDT, make sure CS refers to the right descriptor. 
This will allow us to boot from e.g GRUB which will have a different looking
GDT in effect before we start moving things around.
 2019-05-17 18:52:29 +02:00
Andreas Kling
64b0b81b2a sync.sh: Use mkdir -p for everything. 2019-05-17 18:26:54 +02:00
Andreas Kling
e8ae2c952e Kernel: Put GDT and IDT in BSS rather than runtime-allocating them. 2019-05-17 18:25:50 +02:00
Andreas Kling
e0ff07bb57 Kernel: Make sure we load DS/ES/FS/GS/SS immediately after making the GDT. 2019-05-17 18:23:08 +02:00
Andreas Kling
a15857ea28 Kernel: Clear the X86 direction flag (DF) in the boot loader. 
I'm not sure who is responsible for clearing this, but IIUC the C++ ABI
expects it to be clear on function entry, so just to be on the safe side..
 2019-05-17 18:20:11 +02:00
Andreas Kling
45230a9544 Run QEMU with the "guest_errors" debug flag, in case we do something wrong. 2019-05-17 18:19:03 +02:00
Andreas Kling
923e587283 Kernel: GDTR and IDTR limits should be table size - 1. 2019-05-17 18:17:53 +02:00
Robin Burchell
0d77aa841a Kernel/Process: Use auto to avoid incompatible types, causing a signedness warning in the ASSERT 2019-05-17 16:06:26 +02:00
Robin Burchell
1cefb4a3b4 Kernel/RTC: Mark some intentional fallthroughs to suppress compiler warnings 2019-05-17 16:06:26 +02:00
Robin Burchell
77dfd419e9 LibCore: Move AK/ArgsParser to LibCore/CArgsParser 
Also rename the classes to match LibCore naming style.
This means that it's no longer incorrectly linked into LibC and Kernel.
 2019-05-17 15:49:37 +02:00
Andreas Kling
cde47089d2 Kernel: Remove some unnecessary massaging of region base/size pairs. 
These will be appropriately rounded by the allocate_range(), so call sites
can stop worrying about it.
 2019-05-17 04:47:06 +02:00
Andreas Kling
6957825444 Kernel: Factor out range allocation from Process::allocate_region*(). 
These functions were doing exactly the same thing for range allocation, so
share that code in an allocate_range() helper.

Region allocation will now also fail if range allocation fails, which means
that mmap() can actually fail without falling apart. Exciting times!
 2019-05-17 04:39:22 +02:00
Andreas Kling
87b54a82c7 Kernel: Let Region keep a Range internally. 2019-05-17 04:32:08 +02:00
Andreas Kling
4a6fcfbacf Kernel: Use a RangeAllocator for kernel-only virtual space allocation too. 2019-05-17 04:02:29 +02:00
Andreas Kling
b1bb737704 Kernel: Remove Process::m_next_address. 
This isn't needed now that we have RangeAllocator. :^)
 2019-05-17 03:47:00 +02:00
Andreas Kling
45ff3a7e6a Kernel: Make Thread::kernel_stack_base() work for kernel processes. 2019-05-17 03:43:51 +02:00
Andreas Kling
c414e65498 Kernel: Implement a simple virtual address range allocator. 
This replaces the previous virtual address allocator which was basically
just "m_next_address += size;"

With this in place, virtual addresses can get reused, which cuts down on
the number of page tables created. When we implement ASLR some day, we'll
probably have to do page table deallocation, but for now page tables are
only deallocated once the process dies.
 2019-05-17 03:40:15 +02:00
Andreas Kling
c56e3ebee1 Always dump QEMU CPU state on CPU reset. 2019-05-17 00:06:23 +02:00
Andreas Kling
4e88872c8e Kernel: Always dump_backtrace() on process crash. 2019-05-16 19:49:48 +02:00
Andreas Kling
174639b7f0 Kernel: Symbolicate userspace backtraces using ELFLoader. 
Stash away the ELFLoader used to load an executable in Process so we can use
it for symbolicating userspace addresses later on. This will make debugging
userspace programs a lot nicer. :^)
 2019-05-16 17:18:25 +02:00
Robin Burchell
f1f3cd58b0 FileSystem: fix errno on lseek() beyond the bounds of a file 
These are all EINVAL. Also remove bogus assert on metadata.size.
 2019-05-16 16:05:08 +02:00
Andreas Kling
c5434e0cfa Kernel: Simplify ELF loader by removing the allocator indirections. 2019-05-16 14:16:08 +02:00
Andreas Kling
2f4e7edee5 Kernel: Simplify dump_backtrace() API for clients. 
It makes no sense that clients had to worry about whether or not KSyms
were loaded.
 2019-05-16 13:41:16 +02:00
Andreas Kling
7a2da54c07 Only the kernel needs to build with default includes disabled. 2019-05-16 13:40:43 +02:00
Andreas Kling
176f683f66 Kernel: Move Inode to its own files. 2019-05-16 03:02:37 +02:00
Andreas Kling
3cba2a8a78 Kernel: Add a beep() syscall that beeps the PC speaker. 
Hook this up in Terminal so that the '\a' character generates a beep.
Finally emit an '\a' character in the shell line editing code when
backspacing at the start of the line.
 2019-05-15 21:40:41 +02:00
Robin Burchell
ac2a3b65bb makeall: Use set -e to exit on failure 
And pretty the building/installing up a little, rather than a huge chain of &&
 2019-05-15 21:14:09 +02:00
Robin Burchell
c6bc23a748 makeall: Like BuildIt, respect MAKEJOBS 2019-05-15 21:14:09 +02:00
Andreas Kling
01ffcdfa31 Kernel: Encapsulate the Region's COW map a bit better. 2019-05-14 17:31:57 +02:00
Andreas Kling
7c10a93d48 Kernel: Make allocate_kernel_region() commit the region automatically. 
This means that kernel regions will eagerly get physical pages allocated.
It would be nice to zero-fill these on demand instead, but that would
require a bunch of MemoryManager changes.
 2019-05-14 15:38:00 +02:00
Andreas Kling
9e2116ff6b Kernel: Signal stacks are lazily allocated so don't crash in getter. 2019-05-14 12:17:59 +02:00
Andreas Kling
486c675850 Kernel: Allocate kernel signal stacks using the region allocator as well. 2019-05-14 12:06:09 +02:00
Andreas Kling
c8a216b107 Kernel: Allocate kernel stacks for threads using the region allocator. 
This patch moves away from using kmalloc memory for thread kernel stacks.
This reduces pressure on kmalloc (16 KB per thread adds up fast) and
prevents kernel stack overflow from scribbling all over random unrelated
kernel memory.
 2019-05-14 11:51:00 +02:00
Andreas Kling
8c3ad802d8 Kernel: Have Lock dump backtrace on lock-while-interrupts-disabled error. 2019-05-14 11:50:15 +02:00
Andreas Kling
dae8eb6454 Kernel: Add support for the PS/2 mouse wheel if detected. 2019-05-13 19:48:14 +02:00
GuillaumeGas
801d6f572a Feature/pidof (#31) 
* Added killall command

* Fixed feedbacks of awesomekling

* Implemented pidof program and helper to parse arguments called ArgsParser.

* Fixed feedbacks in pidof implem.

Fixes #26
 2019-05-13 14:31:23 +02:00
Andreas Kling
b7166385de RetroFetch: Add a silly neofetch-like program. 
The idea is to print out various system info suitable for screenshots. :^)
 2019-05-13 04:54:48 +02:00
Andreas Kling
090e14d42c IPv4: Default initialize IPv4Address to 0.0.0.0. 
IPv4Address() didn't initialize which made for some confusing debugging.
 2019-05-10 18:18:54 +02:00
Andreas Kling
99aead4857 Kernel: Add a writev() syscall for writing multiple buffers in one go. 
We then use this immediately in the WindowServer/LibGUI communication in
order to send both message + optional "extra data" with a single syscall.
 2019-05-10 03:19:25 +02:00
Andreas Kling
bd5c79aff2 LibGUI: Start working on a file picker dialog (GFilePicker). 
Have LibGUI adopt GDirectoryModel from FileManager since it fits perfectly
for the needs of a file picker.
 2019-05-09 01:24:37 +02:00
Andreas Kling
b5b44a29bb Replace various copies of parse_uint(String) with String::to_uint(). 2019-05-08 19:21:51 +02:00
Andreas Kling
3ae9fc5d88 Move VisualBuilder into a new DevTools directory. 2019-05-08 13:53:34 +02:00
Andreas Kling
eaf03d4ddb HelloWorld: Add a simple "Hello World!" app showing the basics. 
This also introduces a Demos/ directory where I hope to add cool things.
 2019-05-08 01:18:36 +02:00
Andreas Kling
ba7364b43b Shell: Move line editing to a separate class. 
To be clear, there isn't really any line editing yet. But there is
going to be, so let's have it in its own class.
 2019-05-07 01:39:41 +02:00
Andreas Kling
fe73543d41 Shell: Move the Shell to a separate directory and let's call it "Shell" :^) 2019-05-07 01:12:08 +02:00
Andreas Kling
72cbcd8e98 Kernel: Dump backtrace on exit() syscall. 
This makes assertion failures a lot more pleasant to investigate.
 2019-05-06 21:48:48 +02:00
Andreas Kling
6228503c16 Kernel: Add a bit of logging in VMObject::inode_size_changed(). 2019-05-04 21:15:59 +02:00
Andreas Kling
932836e3c7 Kernel: Computing the boot timestamp was a bit broken. 2019-05-04 17:05:42 +02:00