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454 Commits

Author SHA1 Message Date
Andreas Kling
b204b77b29 sh: Remove debug spam during command launch. 2019-04-26 17:33:06 +02:00
Andreas Kling
d4a8e2930e sh: Add a simple "export" command for setting environment variables. 2019-04-26 03:23:27 +02:00
Andreas Kling
c392c0d799 Userland: Add a simple /bin/tr program. 2019-04-26 00:57:37 +02:00
Andreas Kling
671dee9afa Userland: Add a simple /bin/sort program. 2019-04-26 00:53:57 +02:00
Andreas Kling
b5a1ee1d3e Userland: Add a simple /bin/head program. 2019-04-26 00:47:30 +02:00
Andreas Kling
96d4b701e6 sh: Make "cd" jump to the home directory. And also let's set $HOME. 
Nobody else is setting $HOME right now, so we might as well do it here.
This should eventually be done by some sort of "login" program.
 2019-04-25 23:09:21 +02:00
Andreas Kling
89e9aafbb5 sh: Support erasing a whole word with WERASE (^W). 2019-04-25 23:05:10 +02:00
Andreas Kling
04b7def6ab sh: Add support for redirecting stdin and stdout with < and >. 
This is certainly about time. The kernel has had all the necessary support
in place for months, and I just kept postponing working on the shell. :^)
 2019-04-25 16:10:16 +02:00
Andreas Kling
df8e76a67c cat: Just use fd 0 when no arguments are passed. 
I'm not sure why it seemed necessary at some point to open /dev/stdin rather
than simply using the already-open fd 0.
 2019-04-25 16:01:28 +02:00
Andreas Kling
e84faadb63 sh: Refactor command parsing into a separate class. 2019-04-25 14:34:25 +02:00
Andreas Kling
07de1147ad sh: Add basic command piping support. 2019-04-25 14:13:36 +02:00
Andreas Kling
aa84e2fc64 fgrep: Don't repeat old incoming data if fgets() failed. 2019-04-25 14:07:17 +02:00
Andreas Kling
eadcf720c0 Userland: Add a simple /bin/echo program. 2019-04-25 04:42:09 +02:00
Andreas Kling
0c898e3c2c Put assertions behind a DEBUG flag to make it easy to build without them. 2019-04-23 21:52:02 +02:00
Andreas Kling
91f561a417 touch: Newly created files were accidentally marked as FIFO's. 2019-04-23 17:04:12 +02:00
Andreas Kling
5c68929aa1 Kernel: Add a systrace() syscall and implement /bin/strace using it. 
Calling systrace(pid) gives you a file descriptor with a stream of the
syscalls made by a peer process. The process must be owned by the same
UID who calls systrace(). :^)
 2019-04-22 18:44:45 +02:00
Andreas Kling
57da00b731 Include Makefile.common in all other Makefiles. 2019-04-21 04:09:39 +02:00
Andreas Kling
5f63f8120c Kernel: Remove "restorer" field from SignalActionData. 
I was originally implementing signals by looking at some man page about
sigaction() to see how it works. It seems like the restorer thingy is
system-specific and not required by POSIX, so let's get rid of it.
 2019-04-20 19:32:14 +02:00
Andreas Kling
5eedb22834 Sprinkle use of AK::Vector in various places. 
Some of these are less helpful than others. Avoiding a bunch of mallocs
in the event loop wakeup code is definitely nice.
 2019-04-20 14:02:19 +02:00
Andreas Kling
301a269ca0 Get rid of SERENITY macro since the compiler already defines __serenity__ 
This makes it a bit easier to use AK templates out-of-tree.
 2019-04-20 12:58:49 +02:00
Andreas Kling
87c4d2bc92 Userland: Add a /bin/basename program. 2019-04-15 13:57:09 +02:00
Nicolas Van Bossuyt
37c27e2e39 Userspace: gitignore binaries 2019-04-15 00:35:37 +02:00
Andreas Kling
adc91d92a3 Userland: Oops, that merge broke the build, just needed a few tweaks. :^) 2019-04-14 20:32:44 +02:00
Nicolas Van Bossuyt
40e710da3d
Userland: Maybe find is overkill 2019-04-14 20:15:29 +02:00
Nicolas Van Bossuyt
dfeeaff237
Userland: making the makefile smarter 2019-04-14 19:58:25 +02:00
VAN BOSSUYT Nicolas
12f2d1f2e8 Uptime: making the ouput prettier 
Just like the -p option on linux
 2019-04-14 19:10:24 +02:00
Andreas Kling
c0fe48635b Kernel: Add /proc/uptime file (number of seconds since boot.) 
Also added a simple /bin/uptime to pretty-print this information. :^)
 2019-04-14 15:19:45 +02:00
Andreas Kling
5e0577a042 Introduce LibCore and move GElapsedTimer => CElapsedTimer. 
I need a layer somewhere between AK (usable both by userspace and kernel)
and LibGUI (usable by userspace except WindowServer.) So here's LibCore.
 2019-04-10 16:14:44 +02:00
Andreas Kling
4ab0cd5d4c LibGUI: Move frame painting from GFrame to StylePainter. 
This way it can be used by others who might not have a GFrame object.
 2019-04-10 03:43:46 +02:00
Andreas Kling
313ac51832 LibGUI: Turn GTextBox into a wrapper around a single-line GTextEditor. 2019-04-10 03:08:29 +02:00
Andreas Kling
37ae00a4dd Kernel+Userland: Add the rename() syscall along with a basic /bin/mv. 2019-04-07 23:35:26 +02:00
Andreas Kling
5d72cf5a3f LibGUI: Improve GFrame's look for Container shapes. 
This is now starting to look like a proper container. Very nice :^)
 2019-03-28 20:15:13 +01:00
Andreas Kling
f939fb7eb7 Userland: Add a simple GFrame testing window to guitest2. 2019-03-28 18:52:03 +01:00
Andreas Kling
9fa21fa585 LibGUI: Add a GPainter class that inherits from Painter. 
This gets rid of the last little piece of LibGUI knowledge in Painter.
 2019-03-28 17:19:56 +01:00
Andreas Kling
0058da734e Kernel: Add Inode::truncate(size). 
- Use this to implement the O_TRUNC open flag.
- Fix creat() to pass O_CREAT | O_TRUNC | O_WRONLY.
- Make sure we truncate wherever appropriate.
 2019-03-27 16:42:30 +01:00
Andreas Kling
23bb276fcd LibC: Run constructors on process startup. 
Cooperate with the compiler to generate and execute the _init_array list
of constructor functions on userspace program statup. This took two days
to get working, my goodness. :^)
 2019-03-27 12:48:21 +01:00
Andreas Kling
aef6030a80 LibC: Time-related POSIX compliance fixes. 2019-03-27 01:31:53 +01:00
Andreas Kling
7e54fdce99 QuickShow: Fill the window with white if the opened image has alpha. 2019-03-24 03:07:00 +01:00
Andreas Kling
d563dc0565 LibGUI: Add a setting to make GLabel stretch its icon. 
Use this in QuickShow to allow arbitrarily scaling the opened image.
 2019-03-22 04:20:48 +01:00
Andreas Kling
c3b0c1ba68 LibGUI: Add a GProgressBar widget. 2019-03-22 02:49:45 +01:00
Andreas Kling
e4dfd5a3a4 WindowServer: Support PNG wallpapers. 
Fix up /bin/pape so it tells the WindowServer which wallpaper file to use.
 2019-03-21 15:54:19 +01:00
Andreas Kling
0114c61cf1 Userland: Turn off double buffering in QuickShow. 
Since this program is primarily used to display potentially huge but still
static images, let's not put extra strain on the system by double buffering.
 2019-03-21 13:31:47 +01:00
Andreas Kling
65348e7dc1 PNGLoader: Support for color type 2 (RGB triplets) and multiple IDAT chunks. 2019-03-21 05:25:54 +01:00
Andreas Kling
42755e98cf SharedGraphics: Implement a simple PNG decoder. 
This is extremely unoptimized, but it does successfully load "folder32.png"
so it must be at least somewhat correct. :^)
 2019-03-21 03:57:42 +01:00
Andreas Kling
4ea625e08b Userland: Allow ping <hostname> :^) 2019-03-20 03:38:09 +01:00
Andreas Kling
0e4a1936ca LibC: Implement gethostbyname() by talking to the DNSLookupServer. 
We now talk to the lookup server over a local socket and it does the lookup
on our behalf. Including some retry logic, which is nice, because it seems
like DNS requests disappear in the ether pretty damn often where I am.
 2019-03-20 01:15:22 +01:00
Andreas Kling
57ff293a51 LibGUI: Implement nested event loops to support dialog boxes. 
This patch adds a simple GMessageBox that can run in a nested event loop.
Here's how you use it:

    GMessageBox box("Message text here", "Message window title");
    int result = box.exec();

The next step is to make the WindowServer respect the modality flag of
these windows and prevent interaction with other windows in the same
process until the modal window has been closed.
 2019-03-19 00:01:02 +01:00
Andreas Kling
4629272135 Userland: Turn the tc test util into a simple dumb HTTP client. 2019-03-14 15:19:20 +01:00
Andreas Kling
3d5296a901 IPv4: Last burst of TCP hacking for today. 
Connecting to a test server and exchanging data back and forth works.
 2019-03-14 01:44:42 +01:00
Andreas Kling
be46f1bb1f IPv4: More work on the TCP implementation. 
Reading from the peer now kinda works. Something still going wrong with
sending packets but it's getting closer.
 2019-03-14 01:00:10 +01:00
Andreas Kling
032d9d7065 IPv4: More hacking on bringing up TCP support. 
This was a bit more complicated than I expected, but it's moving forward.
 2019-03-13 23:14:30 +01:00
Andreas Kling
7aba68d51c Userland+LibC: Add a new little "tc" program for testing TCP. 
Also added send() and recv() to LibC in support of this. They are just
wrappers around sendto() and recvfrom().
 2019-03-13 17:33:40 +01:00
Andreas Kling
4dddf949c8 IPv4: More work on UDP support. 
I'm now able to connect to a simple UDP server on my host machine and
exchange some data. Very cool! :^)
 2019-03-13 15:40:30 +01:00
Andreas Kling
ea6a537b70 Userland: Add a simple utility for UDP testing. 2019-03-13 15:00:02 +01:00
Andreas Kling
19a51132f5 Kernel: recvfrom() should treat the address arguments as outparams. 2019-03-13 14:47:21 +01:00
Andreas Kling
562663df7c Add support for socket send/receive timeouts. 
Only the receive timeout is hooked up yet. You can change the timeout by
calling setsockopt(..., SOL_SOCKET, SO_RCVTIMEO, ...).

Use this mechanism to make /bin/ping report timeouts.
 2019-03-13 13:15:05 +01:00
Andreas Kling
cf250e1245 More work on IPv4 sockets and /bin/ping. 
It's now actually possible to ping other hosts on the network! :^)
I've switched the "run" script over to starting QEMU with user networking
since that works better for my testing needs right now.
 2019-03-13 03:26:01 +01:00
Andreas Kling
a7d5e9781a Kernel+LibC+Userland: Yet more networking bringup hacking. 
All ICMP sockets now receive all ICMP packets. All this buffering is gonna
need some limits and such.
 2019-03-12 17:27:07 +01:00
Andreas Kling
a017a77442 Kernel+LibC+Userland: Start working on an IPv4 socket backend. 
The first userland networking program will be "ping" :^)
 2019-03-12 15:51:42 +01:00
Andreas Kling
971dd46aec Userland: Use AK::quick_sort() in /bin/top 2019-03-09 16:20:46 +01:00
Andreas Kling
28a6ba498a Userland: Fix broken permissions for files created by /bin/cp. 
When passing O_CREAT to open(), it will grab a third "mode" argument from
the stack. Let's not forget to actually pass this!

Also use the process umask for the created files.
 2019-03-07 23:23:07 +01:00
Andreas Kling
3079ef01ce Userland: /bin/cp needs to handle open(dst) failing with EISDIR. 2019-03-06 20:28:00 +01:00
Andreas Kling
7d46375690 Userland: Support "cp foo somedirectory" 
Don't overwrite the literal directory inode contents when copying a file
to a directory, duh. :^)
 2019-03-06 20:22:23 +01:00
Andreas Kling
66a5ddd94a More work on the variable-width font support. 
Katica is now the default system font, and it looks quite nice. :^)
I'm gonna need to refine the GTextBox movement stuff eventually,
but it works well-enough for basic editing now.
 2019-03-06 14:06:40 +01:00
Andreas Kling
2c5a378ccc Kernel+Userland: Add symlink() syscall and add "-s" flag to /bin/ln. 
It's now possible to create symbolic links! :^)

This exposed an issue in Ext2FS where we'd write uninitialized data past
the end of an inode's content. Fix this by zeroing out the tail end of
the last block in a file.
 2019-03-02 01:52:24 +01:00
Andreas Kling
1b16a29044 Kernel+Userland: Implement fchmod() syscall and use it to improve /bin/cp. 
/bin/cp will now copy the permission bits from source to destination. :^)
 2019-03-01 10:39:19 +01:00
Andreas Kling
c09ab7cc40 Kernel: Only allow sending signals to process you own. 2019-02-28 11:46:38 +01:00
Andreas Kling
dda9b9ab1b Userland: Add a simple /bin/stat program. 2019-02-27 21:45:06 +01:00
Andreas Kling
02bfbb712a Userland: /bin/ls should show major,minor for block devices. 2019-02-27 21:32:21 +01:00
Andreas Kling
1d2529b4a1 Add chown() syscall and a simple /bin/chown program. 2019-02-27 12:32:53 +01:00
Andreas Kling
3f29a12d90 More compat work. Rename libraries from LibFoo.a => libfoo.a 
This makes it more straightforward to build a cross-compiler toolchain.
Also move math stuff from LibC to LibM.
 2019-02-26 13:30:57 +01:00
Andreas Kling
9624b54703 More moving towards using signed types. 
I'm still feeling this out, but I am starting to like the general idea.
 2019-02-25 22:06:55 +01:00
Andreas Kling
901b7d5d91 Fix a bunch of compiler warnings. Not all, but a lot. 2019-02-25 19:05:51 +01:00
Andreas Kling
a7a456002e LibC: Enough compat work to make binutils-2.32 build and run. 2019-02-23 17:24:50 +01:00
Andreas Kling
d7753c7c8d Move over to building all of userspace with i686-pc-serenity-g++. 2019-02-22 14:45:14 +01:00
Andreas Kling
b0d1969ca5 Userland: Fix two compiler warnings. 2019-02-22 10:50:59 +01:00
Andreas Kling
75b100673f Switch over to building everything with i686-elf-g++. 2019-02-22 10:45:32 +01:00
Andreas Kling
aaa11e3c25 Userland: Fix extra unused printf() argument warning. 2019-02-22 10:32:17 +01:00
Andreas Kling
6d3e12899b Kernel: Pass process arguments directly on the stack. 
Get rid of the convoluted get_arguments and get_environment syscalls.
This patch also adds a simple /bin/env that just prints its environment.
 2019-02-22 01:55:22 +01:00
Andreas Kling
b30773638e Userland: Minor tweaks in /bin/su 2019-02-21 23:49:16 +01:00
Andreas Kling
920e8e58ed Kernel+Userland: Implement setuid() and setgid() and add /bin/su 
Also show setuid and setgid bits in "ls -l" output. :^)
 2019-02-21 23:38:10 +01:00
Andreas Kling
6071a77e8e Userland: Remove the /bin/sh greeting. It was cute but spammy. 2019-02-21 23:34:14 +01:00
Andreas Kling
43075e5878 Add a simple /bin/df which gathers its info from /proc/df. 2019-02-21 14:48:00 +01:00
Andreas Kling
7d288aafb2 Kernel: Add link() syscall to create hard links. 
This accidentally grew into a little bit of VFS cleanup as well.

Also add a simple /bin/ln implementation to exercise it.
 2019-02-21 13:26:40 +01:00
Andreas Kling
fd575055c2 Userland: /bin/sh shouldn't crash on EINTR. 2019-02-20 23:45:00 +01:00
Andreas Kling
8eedbbc9ca Prune compiler flags a bit. Let's go with -march=i686 for now. 2019-02-17 15:17:21 +01:00
Andreas Kling
809266a9fb Kernel: Remove tracking of bitmap memory. 
There are no more kernel bitmaps. It's much better this way.
 2019-02-17 01:16:38 +01:00
Andreas Kling
df6aaaeeef Enable -Wimplicit-fallthrough. 2019-02-15 12:39:16 +01:00
Andreas Kling
ce74db4e2a Userland: /bin/ls should display socket files nicely. 2019-02-14 17:30:58 +01:00
Andreas Kling
f529b845ec WindowServer: Convert entire API to be message-based. 
One big step towards userspace WindowServer. :^)
 2019-02-14 01:21:32 +01:00
Andreas Kling
fbbf57b61c Rename GUI_Event to GUI_ServerMessage. 
Now that communication is becoming bidirectional, "event" is no longer right.
 2019-02-13 17:59:38 +01:00
Andreas Kling
3351f1ccc1 Port all apps to GApplication. 2019-02-11 14:56:23 +01:00
Andreas Kling
5f288014d4 WindowServer: More work on menus. 2019-02-11 10:08:54 +01:00
Andreas Kling
e1be5a468d Userland: Add a /bin/pape helper program to switch the desktop wallpaper. 2019-02-08 16:22:54 +01:00
Andreas Kling
736e852525 LibC: Implement enough missing stuff to get bash-5.0 running. :^) 2019-02-08 02:38:21 +01:00
Andreas Kling
5158bee08c Don't use -mregparm=3 in userspace. 
It's pretty comfy having arguments in registers in the kernel for now though.
 2019-02-08 01:24:52 +01:00
Andreas Kling
887b4a7a1a Start working on a simple Launcher app. 
Let GButton have an optional icon (GraphicsBitmap) that gets rendered in the
middle of the button if present.

Also add GraphicsBitmap::load_from_file() which allows mmap'ed RGBA32 files.
I wrote a little program to take "raw" files from GIMP and swizzle them into
the correct byte order.
 2019-02-07 23:17:06 +01:00
Andreas Kling
71b9ec1ae0 Kernel: Add basic process priority support. 
For now, the WindowServer process will run with high priority,
while the Finalizer process will run with low priority.
Everyone else gets to be "normal".

At the moment, priority simply determines the size of your time slices.
 2019-02-07 12:21:17 +01:00
Andreas Kling
5582a0a254 Kernel: When a lock is busy, donate remaining process ticks to lock holder. 
Since we know who's holding the lock, and we're gonna have to yield anyway,
we can just ask the scheduler to donate any remaining ticks to that process.
 2019-02-07 11:14:58 +01:00
Andreas Kling
27263b6172 Clean up LDFLAGS a bit. 
While working on the ELF loader I was trying to keep binaries as simple as
possible so I could understand them easily. Now that the ELF loader is mature
and working fine, we can move closer towards ld defaults.
 2019-02-06 14:48:09 +01:00
Andreas Kling
378e20c535 Kernel: Reading from a slave PTY should give EOF if master PTY is closed. 2019-02-05 12:27:32 +01:00
Andreas Kling
3accdb0e93 Handle WindowCloseRequest in FontEditor and /bin/guitest. 2019-02-05 12:07:06 +01:00
Andreas Kling
11db8c1697 Add a simple close button ("X") to windows. 
Clicking the button generates a WindowCloseRequest event which the client app
then has to deal with. The default behavior for GWindow is to close() itself.

I also added a flag, GWindow::should_exit_event_loop_on_close() which does
what it sounds like it does.

This patch exposed some bugs in GWindow and GWidget teardown.
 2019-02-05 10:31:37 +01:00
Andreas Kling
d0078b6574 Clock: Turns the clock window from guitest2 into a separate program. 
We can't not have a desktop clock app. :^)
 2019-02-05 09:44:13 +01:00
Andreas Kling
41567c5bb9 Show the amount of memory in GraphicsBitmaps in /bin/top. 
This seems like an extremely relevant metric to track.
 2019-02-05 09:27:27 +01:00
Andreas Kling
b1e054ffe8 Rename LizaBold to LizaRegular and LizaBlack to LizaBold. 
LizaRegular is quickly becoming my favorite bitmap font. It's so pretty :^)
 2019-02-05 09:08:25 +01:00
Andreas Kling
d7307c3119 Kernel: Ignore SIGCHLD by default. 
Also use an enum for the rather-confusing return value in dispatch_signal().
I will go through the rest of the signals and set them up with the
appropriate default dispositions at some other point.
 2019-02-04 14:06:38 +01:00
Andreas Kling
ba6ffea03c Kernel: Process should send SIGCHLD to its parent when it dies. 2019-02-04 13:30:03 +01:00
Andreas Kling
7fe600f250 LibGUI: Use LightGray as the base UI color. 
This feels nicely reminiscent of the gap in time between Win3.11 and Win95,
one of my favorite eras in UI look-and-feel.
 2019-02-04 11:53:26 +01:00
Andreas Kling
c0cffe1134 Add a /bin/top program for process table monitoring. 
It automagically computes %CPU usage based on the number of times a process
has been scheduled between samples. The colonel task is used as idle timer.
This is pretty cool. :^)
 2019-02-04 10:28:12 +01:00
Andreas Kling
31f44481f3 Add /dev/{stdin,stdout,stderr} as symlinks to /proc/self/fd/{0,1,2} 
Also change /bin/cat to open /dev/stdin if no arguments are provided.
 2019-02-03 12:38:03 +01:00
Andreas Kling
0c9a2b1430 Kernel: Oops, I mixed up st_dev and st_rdev in struct stat. 2019-02-03 06:23:10 +01:00
Andreas Kling
c2adfd0e2d LibC: Implement various things to get GNU bc building and running. 
Looks like that's all we needed, and bc now runs. :^)
 2019-02-03 04:32:31 +01:00
Andreas Kling
dd931f136e guitest2: Stop showing the font test window by default. 2019-02-03 03:36:10 +01:00
Andreas Kling
e2f27aa7b5 Userland: Make /bin/date pretty-print the date, too. 2019-02-03 02:47:37 +01:00
Andreas Kling
10fde0d707 Userland: Pretty-print modification times in /bin/ls. 2019-02-03 02:14:41 +01:00
Andreas Kling
6fc3c38324 Start working on a simple graphical font editor. 
Editing fonts by editing text files is really slow and boring.
A simple font editor seems like a good way to take LibGUI for a spin.
 2019-02-02 08:07:06 +01:00
Andreas Kling
5e0b7f1a56 Add basic automatic dependency management to Makefiles. 2019-02-02 04:41:59 +01:00
Andreas Kling
9153666e72 Userland: /bin/ls shouldn't display inode numbers by default. 
Added the -i option to ls which turns on inode number display.
 2019-01-31 17:34:24 +01:00
Andreas Kling
ffab6897aa Big, possibly complete sweep of naming changes. 2019-01-31 17:31:23 +01:00
Andreas Kling
e04ba0a83c Add a simple clock window to guitest2. 
This is driven by mousedown events right now, since there are no timers.
 2019-01-31 16:37:43 +01:00
Andreas Kling
c4fce9b3f9 Make stat() work on device files again. 
FileDescriptor will now keep a pointer to the original inode even after
opening it resolves to a character device.

Fixed up /bin/ls to display major and minor device numbers instead of size
for device files.
 2019-01-31 05:05:57 +01:00
Andreas Kling
37ab7b7a8c LibGUI: Implement destroying individual windows without exiting the process. 2019-01-30 20:03:52 +01:00
Andreas Kling
e9b948103d Add a /dev/pts filesystem and make PTY allocation dynamic. 
You can now open as many PTY pairs as you like. Well, it's actually capped
at 8 for now, but it's just a constant and trivial to change.

Unregistering a PTY pair is untested because I didn't want to start
mucking with that in Terminal right now.
 2019-01-30 00:49:20 +01:00
Andreas Kling
c30e2c8d44 Implement basic chmod() syscall and /bin/chmod helper. 
Only raw octal modes are supported right now.
This patch also changes mode_t from 32-bit to 16-bit to match the on-disk
type used by Ext2FS.

I also ran into EPERM being errno=0 which was confusing, so I inserted an
ESUCCESS in its place.
 2019-01-29 04:55:08 +01:00
Andreas Kling
7455f5ea42 Expose the kernel log buffer through /proc/dmesg. 
Also add a /bin/dmesg program for convenience.
 2019-01-28 22:40:55 +01:00
Andreas Kling
c95228b128 Add support for removing directories. 
It's really only supported in Ext2FS since SynthFS doesn't really want you
mucking around with its files. This is pretty neat though :^)

I ran into some trouble with HashMap while working on this but opted to work
around it and leave that for a separate investigation.
 2019-01-28 04:16:01 +01:00
Andreas Kling
35c06f1520 LibGUI: More work on GCheckBox. 
- Make it track the mouse cursor just like GButton does so that changes only
  get committed if the mouseup event happens while inside the widget rect.

- Draw a focus rect around the box when appropriate.

- When focused, support toggling the checked state with the space bar.
 2019-01-27 20:22:06 +01:00
Andreas Kling
c4c475b49d /bin/cp: Handle partial write() case. 2019-01-27 10:04:53 +01:00
Andreas Kling
15fad649ea Userland: Make a simple /bin/cp for copying files. 2019-01-27 07:18:26 +01:00
Andreas Kling
de2423de5f LibGUI: Flesh out focus implementation and more GTextBox work. 2019-01-26 11:24:16 +01:00
Andreas Kling
d72575d196 LibGUI: Start bringing up GTextBox in the standalone world. 2019-01-26 06:39:13 +01:00
Andreas Kling
7cf3c7461c Refactor GUI rendering model to be two-phased. 
Instead of clients painting whenever they feel like it, we now ask that they
paint in response to a paint message.

After finishing painting, clients notify the WindowServer about the rect(s)
they painted into and then flush eventually happens, etc.

This stuff leaves us with a lot of badly named things. Need to fix that.
 2019-01-26 05:20:32 +01:00
Andreas Kling
a54848f451 Let's not auto-start guitest. guitest2 is so much more useful. 2019-01-25 15:52:55 +01:00
Andreas Kling
6e5db34b2e sh: Discard the current line on interrupt. 2019-01-25 15:49:54 +01:00
Andreas Kling
92c14ba887 Terminal: Support VKILL and VERASE. Also ignore null characters. 2019-01-25 15:34:21 +01:00
Andreas Kling
6cc1a9d90a sh: Support basic backspacing on the command line. 
It's weird that I didn't do this sooner. I don't know how many tims
I've had to retype a misspelled command. :^)
 2019-01-25 15:11:56 +01:00
Andreas Kling
5adaeeaa3b Terminal: Support setting the window title using Xterm escape sequences. 
Use this in the /bin/sh prompt to keep the window title in sync with the
shell's working directory. :^)
 2019-01-25 05:52:16 +01:00
Andreas Kling
86eae0f8df Let userland retain the window backing store while drawing into it. 
To start painting, call:
gui$get_window_backing_store()

Then finish up with:
gui$release_window_backing_store()

Process will retain the underlying GraphicsBitmap behind the scenes.
This fixes racing between the WindowServer and GUI clients.

This patch also adds a WSWindowLocker that is exactly what it sounds like.
 2019-01-24 23:44:19 +01:00
Andreas Kling
8d36c8f0d8 LibC: Tweak execvp() and execve() prototypes. 2019-01-23 17:09:00 +01:00
Andreas Kling
bda0c935c2 Add unlink() syscall and /bin/rm. 
This patch adds most of the plumbing for working file deletion in Ext2FS.
Directory entries are removed and inode link counts updated.
We don't yet update the inode or block bitmaps, I will do that separately.
 2019-01-22 07:03:44 +01:00
Andreas Kling
f70136a324 Kernel: Support open() with O_CREAT. 
It's now possible to create zero-length files! :^)
Also hook up the new functionality in /bin/touch.
 2019-01-22 00:58:56 +01:00
Andreas Kling
6127d33cee guitest2: Add a launcher button for guitest. 2019-01-21 02:56:25 +01:00
Andreas Kling
786b903d62 WindowServer: Don't invalidate already frontmost window for moving to front. 2019-01-21 02:19:08 +01:00
Andreas Kling
d66b0f7dd8 LibGUI: Mass coding style fixes. 2019-01-21 00:54:35 +01:00
Andreas Kling
6c4f1bad09 guitest2: Add a simple launcher so I can easily spawn more Terminals. 
Also update GButton coding style.
 2019-01-21 00:31:48 +01:00
Andreas Kling
ea6678b7b3 LibGUI: Hook up GWindow event dispatch for paint and mouse events. 2019-01-20 07:03:38 +01:00
Andreas Kling
dbe83f3a83 Make it possible for userspace to alter window title/geometry. 
I'm not in love with this syscall API but it allows me to make progress.
 2019-01-20 06:04:13 +01:00
Andreas Kling
8eae89a405 Start bringing up LibGUI properly (formerly Widgets.) 2019-01-20 05:48:43 +01:00
Andreas Kling
7e5b81fe48 Make a SharedGraphics directory for classes shared between Kernel and LibGUI. 2019-01-19 23:22:46 +01:00
Andreas Kling
7e044cf293 Add a simple /bin/sysctl that wraps the files in /proc/sys. 2019-01-18 15:35:38 +01:00
Andreas Kling
dff70021ab Make it possible to invalidate only a portion of a window. 
Use this in Terminal to only invalidate rows where anything changed.
 2019-01-18 04:37:49 +01:00
Andreas Kling
dad58db757 Add WindowActivated and WindowDeactivated events. 
Use this to implement different looking Terminal cursors depending on
the window active state.
 2019-01-17 17:38:04 +01:00
Andreas Kling
49b63281a0 Make it possible for a process to switch controlling terminals. 
Via the TIOCSCTTY and TIOCNOTTY ioctls.
 2019-01-15 08:49:24 +01:00
Andreas Kling
6d8043767e Start working on a graphical Terminal program. 2019-01-15 04:30:55 +01:00
Andreas Kling
b673c1a77d Build Painter & friends into LibC. Use it in the GUI test app. 2019-01-14 20:02:51 +01:00
Andreas Kling
0c5ecd303c Share GraphicsBitmaps between the windowing server and the client process. 
This is pretty cool. :^)

GraphicsBitmaps are now mapped into both the server and the client address
space (usually at different addresses but that doesn't matter.)

Added a GUI syscall for getting a window's backing store, and another one
for invalidating a window so that the server redraws it.
 2019-01-14 15:25:34 +01:00
Andreas Kling
b0e3f73375 Start refactoring the windowing system to use an event loop. 
Userspace programs can now open /dev/gui_events and read a stream of GUI_Event
structs one at a time.

I was stuck on a stupid problem where we'd reenter Scheduler::yield() due to
having one of the has_data_available_for_reading() implementations using locks.
 2019-01-14 14:42:49 +01:00
Andreas Kling
1d914cbd84 Minor GUI API things + make Button corners properly transparent. 2019-01-13 06:26:20 +01:00
Andreas Kling
f7261d7b26 Let's use the existing Rect and Color types in the GUI API. 
Any type that doesn't depend on indirect data can probably be used here.
 2019-01-13 05:31:07 +01:00
Andreas Kling
8f8c8d1ca3 Start working on a GUI kernel API. 2019-01-13 02:02:34 +01:00
Andreas Kling
c088529cd8 Fix broken "make clean" in Userland. 2019-01-08 22:28:58 +01:00
Andreas Kling
2239ab96e7 Tweak /bin/id output slightly. 2018-12-29 03:44:37 +01:00
Andreas Kling
36bd53b36a Add a simple /bin/more. 2018-12-21 02:42:30 +01:00
Andreas Kling
4dd50b1f6d Get rid of three test utilities that I no longer need. 2018-12-21 02:22:21 +01:00
Andreas Kling
ec1c487dcd Yet another pass of style fixes. 2018-12-21 02:10:45 +01:00
Andreas Kling
ed7ae6c02c Add sync() syscall and a /bin/sync. 
It walks all the live Inode objects and flushes pending metadata changes
wherever needed.

This could be optimized by keeping a separate list of dirty Inodes,
but let's not get ahead of ourselves.
 2018-12-20 00:39:29 +01:00
Andreas Kling
038d8641f9 Implement utime() along with a naive /bin/touch. 
This synchronous approach to inodes is silly, obviously. I need to rework
it so that the in-memory CoreInode object is the canonical inode, and then
we just need a sync() that flushes pending changes to disk.
 2018-12-19 21:14:55 +01:00
Andreas Kling
5d7ba9640c sh: Restore termios after a child process exits. 
This avoids the annoying situation that occurs when a spawned process
messes with the termios and then doesn't exit cleanly.
 2018-12-07 01:26:07 +01:00
Andreas Kling
829bf94de1 Fix /bin/ls usage string. 2018-12-07 01:19:39 +01:00
Andreas Kling
ca6847b5bb Import a simple text editor I started working on. 2018-12-04 00:27:16 +01:00
Andreas Kling
aff89d2fd7 Yet more coding style fixes. 2018-12-03 01:38:22 +01:00
Andreas Kling
ac7a60225e Add TIOCGWINSZ ioctl so userland can determine terminal geometry. 
(Don't) use this to implement short-form output in ls.
I'm too tired to make a nice column formatting algorithm.
I just wanted something concise when I type "ls".
 2018-11-29 03:45:23 +01:00
Andreas Kling
de4604ac95 Finally hook up the mkdir code to a syscall. 
Added a /bin/mkdir that makes directories. How very neat :^)
There are various limitations because of missing functionality.
 2018-11-18 15:02:16 +01:00
Andreas Kling
303577df16 Various stubs while trying to get an old coreutils to build. 2018-11-17 15:56:09 +01:00
Andreas Kling
e440c3fa87 Support "ls <path>" rather than just "ls" :^) 2018-11-17 01:04:00 +01:00
Andreas Kling
19b9401487 Reduce kmalloc() traffic in directory iteration. 
Pass the file name in a stack-allocated buffer instead of using an AK::String
when iterating directories. This dramatically reduces the amount of cycles
spent traversing the filesystem.
 2018-11-13 00:17:30 +01:00
Andreas Kling
f1404aa948 Add primitive FIFO and hook it up to sys$pipe(). 
It's now possible to do this in bash:

cat kernel.map | fgrep List

This is very cool! :^)
 2018-11-12 01:28:46 +01:00
Andreas Kling
18e3ddf605 Add a naive /bin/fgrep for testing pipes. 2018-11-11 20:42:41 +01:00
Andreas Kling
d5d45d1088 Rage hacking to get bash to run. It finally runs. So cool! :^) 2018-11-11 15:38:07 +01:00
Andreas Kling
36b3dc6c32 Add /proc/PID/cwd, a symlink to the process's current directory. 2018-11-10 18:16:21 +01:00
Andreas Kling
8605711f4b Make /bin/clear work again. 
After I made stdio buffered, we were dropping anything unflushed on exit.
Since /bin/clear just prints out some escape sequences without a newline,
the entire buffer was being discarded.

Also add VirtualConsole::clear() that handles clearing of background VC's.
 2018-11-10 00:56:10 +01:00
Andreas Kling
4914f3b837 Build LibC and Userland with clang as well. 2018-11-09 14:29:00 +01:00
Andreas Kling
7b3b5f745f Move <utsname.h> to <sys/utsname.h> for correctness. 2018-11-09 10:24:41 +01:00
Andreas Kling
8249c086c3 Get rid of redundant sys$spawn now that we have fork+exec. 2018-11-09 10:22:27 +01:00
Andreas Kling
3e0a0dd7ed Fix all current build warnings in the userland. 2018-11-09 10:19:33 +01:00
Andreas Kling
3b2dcd5929 Add a VMO pointer to VNode. 
This way, if anyone tries to map an already mapped file, we share the VMO.
 2018-11-08 15:39:26 +01:00
Andreas Kling
3c8064a787 Support basic mmap'ing of a file! 
All right, we can now mmap() a file and it gets magically paged in from fs
in response to an NP page fault. This is really cool :^)

I need to refactor this to support sharing of read-only file-backed pages,
but it's cool to just have something working.
 2018-11-08 12:59:16 +01:00
Andreas Kling
41a751c90c Minor tweak to /bin/kill. 2018-11-08 02:07:08 +01:00
Andreas Kling
da3857b0c2 Add some simple write buffering to LibC's stdio. 
Plumb it all the way to the VirtualConsole. Also fix /bin/cat to write()
the whole chunks we get from read() directly to stdout.
 2018-11-08 01:23:47 +01:00
Andreas Kling
1dbc340da8 Get rid of the undertaker and have waitpid() be the reaper. 
For dead orphans, the scheduler calls reap().
 2018-11-07 23:59:49 +01:00
Andreas Kling
03a8357e84 Implement sending signals to blocked-in-kernel processes. 
This is dirty but pretty cool! If we have a pending, unmasked signal for
a process that's blocked inside the kernel, we set up alternate stacks
for that process and unblock it to execute the signal handler.

A slightly different return trampoline is used here: since we need to
get back into the kernel, a dedicated syscall is used (sys$sigreturn.)

This restores the TSS contents of the process to the state it was in
while we were originally blocking in the kernel.

NOTE: There's currently only one "kernel resume TSS" so signal nesting
definitely won't work.
 2018-11-07 21:19:47 +01:00
Andreas Kling
c8b308910e Signals to processes in userspace now work again. 
Ugh, how am I going to dispatch signals to processes in the kernel?
 2018-11-07 19:03:44 +01:00
Andreas Kling
678882e020 Rework process states to make a bit more sense. 
Processes are either alive (with many substates), dead or forgiven.
A dead process is forgiven when the parent waitpid()s on it.
Dead orphans are also forgiven.

There's a lot of work to be done around this.
 2018-11-07 18:34:37 +01:00
Andreas Kling
a7f1d892a9 Add some basic setgroups(), getgroups() and initgroups(). 
Also teach /bin/id to print the user's supplemental groups.
 2018-11-07 01:38:51 +01:00
Andreas Kling
90bab5ea71 Add getgrent() family of functions. 2018-11-06 22:27:51 +01:00
Andreas Kling
7c3746592b Add strsignal() and improve sharing signal numbers between LibC and kernel. 2018-11-06 15:45:16 +01:00
Andreas Kling
153ea704af Add some basic signal support. 
It only works for sending a signal to a process that's in userspace code.

We implement reception by synthesizing a PUSHA+PUSHF in the receiving process
(operating on values in the TSS.)
The TSS CS:EIP is then rerouted to the signal handler and a tiny return
trampoline is constructed in a dedicated region in the receiving process.

Also hacked up /bin/kill to be able to send arbitrary signals (kill -N PID)
 2018-11-06 10:56:41 +01:00
Andreas Kling
72cdc62155 Replace zones with individually tracked physical pages. 
It's just a simple struct { ref_count, paddr }.
This will allow me to implement lazy zeroing and COW pages.
 2018-11-05 10:23:00 +01:00
Andreas Kling
da13c9a264 Map pages in read-only ELF sections as non-writable. 
This is so cool! :^) Now you'll crash if you try to write into your
.text or .rodata segments.
 2018-11-03 11:36:45 +01:00
Andreas Kling
20fb1fc377 Fix some bugs in execve() and make sh use it for process launching. 
Interrupting children of sh now always works with ^C :^)
 2018-11-03 02:08:06 +01:00
Andreas Kling
202bdb553c Implemented sys$execve(). 
It's really crufty, but it basically works!
 2018-11-03 01:51:42 +01:00
Andreas Kling
8accc92c3c Implement fork()! 
This is quite cool! The syscall entry point plumbs the register dump
down to sys$fork(), which uses it to set up the child process's TSS
in order to resume execution right after the int 0x80 fork() call. :^)

This works pretty well, although there is some problem with the kernel
alias mappings used to clone the parent process's regions. If I disable
the MM::release_page_directory() code, there's no problem. Probably there's
a premature freeing of a physical page somehow.
 2018-11-02 20:41:58 +01:00
Andreas Kling
10b666f69a Basic ^C interrupt implementation. 
For testing, I made cat put itself into a new process group.
This should eventually be done by sh between fork() and exec().
 2018-11-02 14:06:48 +01:00
Andreas Kling
621217ffeb Add tcsetpgrp()+tcgetpgrp(). 
One more step on the path to being able to ^C a runaway process. :^)
 2018-11-02 13:14:25 +01:00
Andreas Kling
d8f0dd6f3b Start working on sessions and process groups. 2018-11-02 12:56:51 +01:00
Andreas Kling
90ddbca127 Free physical pages allocated for a process's page directory on exit. 
Also use a ProcessPagingScope instead of region aliasing to implement
create-process ELF loading.
 2018-11-01 23:08:10 +01:00
Andreas Kling
cddd2f37e9 Have sh print out which signal terminated a child process. 2018-11-01 01:11:00 +01:00
Andreas Kling
c7d5ce6b5a Add a /bin/tty command that prints the current tty. 
Also fix ttyname() syscall to include "/dev/" in the name.
 2018-10-31 21:46:05 +01:00
Andreas Kling
8f6998c902 Add SpinLock to IDE disk access. 
This forces serialization of accesses. This driver needs to be redesigned.
 2018-10-31 21:33:27 +01:00
Andreas Kling
9886b27d9c Add getpwent() family of functions to LibC. 
Also add a little /etc/passwd database. There's just me in there.
 2018-10-31 19:54:25 +01:00
Andreas Kling
71c9b09e8c Fix ls build. 2018-10-31 15:52:24 +01:00
Andreas Kling
bb90c8ecab A bunch of LibC boilerplate stuff added while trying to get figlet to build. 2018-10-31 02:09:11 +01:00
Andreas Kling
511ed4c4de Snazz up the sh prompt a bit. Add the current tty to it. 2018-10-31 01:21:56 +01:00
Andreas Kling
3218f00099 Implement basic sys$kill() and add a /bin/kill 
All it can do right now is send SIGKILL which just murders the target task.
 2018-10-31 01:06:57 +01:00
Andreas Kling
00c21d1590 Add sys$ttyname_r and ttyname_r() + ttyname(). 
And print a greeting when sh starts up so we know which TTY we're on.
 2018-10-30 22:03:02 +01:00
Andreas Kling
7a85384e47 sh should read from fd 0 (stdin) instead of /dev/keyboard. 2018-10-30 16:17:34 +01:00
Andreas Kling
7a7956a595 Virtual consoles kinda work! 
We now make three VirtualConsoles at boot: tty0, tty1, and tty2.
We launch an instance of /bin/sh in each one.
You switch between them with Alt+1/2/3

How very very cool :^)
 2018-10-30 15:33:37 +01:00
Andreas Kling
0f20be05a6 Implement sys$getcwd properly. 
Also fixed broken strcpy that didn't copy the null terminator.
 2018-10-30 00:06:31 +01:00
Andreas Kling
e6284a8774 Fix broken SpinLock. 
The SpinLock was all backwards and didn't actually work. Fixing it exposed
how wrong most of the locking here is.

I need to come up with a better granularity here.
 2018-10-29 22:04:26 +01:00
Andreas Kling
97726862dd Add basic symlink support. 
- sys$readlink + readlink()
- Add a /proc/PID/exe symlink to the process's executable.
- Print symlink contents in ls output.
- Some work on plumbing options into VFS::open().
 2018-10-28 14:11:51 +01:00
Andreas Kling
c76dc9a047 Add /proc/mm and a /bin/mm utility that just dumps it. 
This shows some info about the MM. Right now it's just the zone count
and the number of free physical pages. Lots more can be added.

Also added "exit" to sh so we can nest shells and exit from them.

I also noticed that we were leaking all the physical pages, so fixed that.
 2018-10-28 10:28:21 +01:00
Andreas Kling
e904f193c1 Canonicalize the path used by sh. 
With a bunch of LibC work to support the feature. LibC now initializes
AK::StringImpl by default. It's now fine to use AK in LibC/Userland! :^)
 2018-10-28 09:36:21 +01:00
Andreas Kling
43475f248b Add save/unsave cursor escape sequences. 
Also added a little terminal test program called /bin/tst.
 2018-10-28 01:44:53 +02:00
Andreas Kling
e2dbdd14aa Colorize ls output. 2018-10-28 01:17:48 +02:00
Andreas Kling
52c19136f2 Give the shell a nice, colorful prompt. 
The cwd looks like crap, I need to write some code to strip out ".."
and extra slashes from the path string.
 2018-10-28 01:08:01 +02:00
Andreas Kling
cc7e3519a6 Add a /bin/clear that prints the clear terminal escape sequence. 
It doesn't work yet, but it will!
 2018-10-27 17:39:08 +02:00
Andreas Kling
8f91a47aeb Add some basic field width support to printf(). 
Use it to make "ls" output a bit better. Also sys$spawn now fails with EACCES
if the path is not a file that's executable by the current uid/gid.
 2018-10-27 16:43:03 +02:00
Andreas Kling
9a71c7759a Implement loading of linked ELF executables. 
This took me a couple hours. :^)

The ELF loading code now allocates a single region for the entire
file and creates virtual memory mappings for the sections as needed.

Very nice!
 2018-10-27 14:56:52 +02:00
Andreas Kling
ec07761d0f Implement waitpid() support for getting the waitee's exit code. 2018-10-27 01:24:22 +02:00
Andreas Kling
2716a9e2d7 Greatly improve /proc/PID/stack by tracing the ebp frame chain. 
I also added a generator cache to FileHandle. This way, multiple
reads to a generated file (i.e in a synthfs) can transparently
handle multiple calls to read() without the contents changing
between calls.

The cache is discarded at EOF (or when the FileHandle is destroyed.)
 2018-10-27 00:14:24 +02:00
Andreas Kling
c928b06218 Add a very hackish /proc/PID/stack. 
It walks the stack and identifies anything that looks like a kernel symbol.
This could be a lot more sophisticated.
 2018-10-26 22:33:15 +02:00
Andreas Kling
63e5583c18 Properly null-terminate the argv list created by sh. 2018-10-26 15:04:20 +02:00
Andreas Kling
1c45b28da6 Add sys$uname() and a /bin/uname utility. 2018-10-26 14:57:26 +02:00
Andreas Kling
2749e7f1c2 Implement sys$chdir() and teach sh+ls to cd around and browse different dirs. 2018-10-26 14:24:11 +02:00
Andreas Kling
df87dda63c Implement argc/argv support for spawned tasks. 
Celebrate the new functionality with a simple /bin/cat implementation. :^)
 2018-10-26 11:16:56 +02:00
Andreas Kling
53abfa7ea1 Add sys$gethostname and /bin/hostname 2018-10-26 09:54:29 +02:00
Andreas Kling
3faaa3e04a Add /bin/false and /bin/true for fun. :^) 2018-10-25 21:39:37 +02:00
Andreas Kling
dc6f57f19c Add gettimeofday() syscall and LibC wrappers gettimeofday() and time(). 
This only has second accuracy right now, I'll work out subseconds later.
 2018-10-25 17:36:18 +02:00
Andreas Kling
5978185242 Add a "sleep" syscall that sleeps for N seconds. 2018-10-25 13:56:03 +02:00
Andreas Kling
260b14e505 Implement errno in LibC. 
This also meant I had to implement BSS (SHT_NOBITS) sections in ELFLoader.
I also added an strerror() so we can print out what the errors are.
 2018-10-25 12:06:50 +02:00
Andreas Kling
16f318408d ELFLoader should fail with an error message for unresolved symbols. 2018-10-25 10:02:04 +02:00
Andreas Kling
ec1d16b307 Add a "pwd" utility to userland. 
It's implemented as a separate process. How cute is that.
Tasks now have a current working directory. Spawned tasks inherit their
parent task's working directory.
Currently everyone just uses "/" as there's no way to chdir().
 2018-10-24 14:28:22 +02:00
Andreas Kling
5f36a5f22e Add an lstat() syscall and use it to make "ls" nicer. 2018-10-24 13:19:36 +02:00
Andreas Kling
bca4b71bfa Lots of hacking to make a very simple "ls" utility. 
I added a dead-simple malloc that only allows allocations < 4096 bytes.
It just forwards the request to mmap() every time.

I also added simplified versions of opendir() and readdir().
 2018-10-24 12:50:07 +02:00
Andreas Kling
9a296d63f3 Add simplified mmap() and munmap() syscalls. 2018-10-24 09:48:41 +02:00
Andreas Kling
3253a23b91 Add a simplified waitpid() so that sh can wait on spawned commands. 2018-10-24 00:20:34 +02:00
Andreas Kling
c80a1f39ce Minor userland tweaks. 2018-10-23 13:57:17 +02:00
Andreas Kling
71ed63c91d Assume commands are binaries in /bin for now. 2018-10-23 13:05:50 +02:00
Andreas Kling
ed2422d7af Start adding a basic /proc filesystem and a "ps" utility. 2018-10-23 12:04:03 +02:00