c8c08e7b90
Moved the make-color-red code into DoWelcome in kernel.cpp.
2011-12-22 12:56:29 +01:00
0f5864602f
Fixed bad filename written in elf.cpp.
2011-12-16 15:35:45 +01:00
7cd28f097c
Program loader now sets the correct program segment type.
2011-12-16 15:33:12 +01:00
acf1eebc98
Added user-space memory allocation.
2011-12-16 13:24:49 +01:00
aae0ed3092
The cursor is disabled when displaying the VGA under JSVM.
2011-12-05 22:13:51 +01:00
2c728fc1f1
VGA now sort-of works under serial-connections.
2011-12-05 21:44:14 +01:00
9e5b9e3767
Hacks to make the JSVM serial driver work better.
2011-12-05 21:14:50 +01:00
cdb873271d
Increased hard-coded maximum JSVM initrd size to 2 MiB 512 KiB.
2011-12-05 19:43:27 +01:00
7e55f325fc
Don't check the initrd on JSVM.
2011-12-05 19:36:15 +01:00
854d9b171a
uptime(2) now reports usecs instead of msecs.
2011-12-04 21:27:21 +01:00
3b8bf9419d
Removed obsolete functions to read from the initrd.
...
Use the initrd filesystem instead.
2011-12-04 15:38:02 +01:00
b0859c6d92
usleep'ing for 0 usecs simply causes a context-switch.
2011-12-02 22:37:17 +01:00
f8129a17b2
Changed the build system for 64-bit quite a bit.
...
The kernel is now compiled 100% as 64-bit code and converted to ELF32.
2011-12-01 23:06:34 +01:00
8e8bb15a1b
Improved corruption panic message in initrd.cpp
2011-12-01 23:03:00 +01:00
b0884584a1
Added a very simple checksum field to the init ramdisk.
...
This uncovers a bug where the bootloader may corrupt the initrd on x64.
This is probably related to our kernel64 hack..
2011-12-01 21:44:11 +01:00
2faafd3f99
Stack is now aligned in 64-bit Sortix threads.
2011-12-01 21:43:35 +01:00
7304c8f528
Fixed uninitialized memory bug in the keyboard driver.
...
This often prevented the letter 'c' from working in x64.
2011-12-01 17:30:14 +01:00
6562da4092
waitpid(2) now returns ECHILD on error.
2011-12-01 14:54:19 +01:00
cf53e4a020
Fixed 64-bit resumed system calls.
2011-12-01 14:29:49 +01:00
c0c20860ed
Lots of improvements to 64-bit Sortix.
...
Fixed 64-bit-ness bug in BSR() and BSF().
Added 64-bit system call stubs in libmaxsi.
Added a Elf64 program loader.
Fixed uninitialized memory bug in the scheduler.
x64/boot.s now takes care of user-space memory permissions.
Fixed bug in x64/syscall.s
That's right. The system now boots in 64-bit mode.
It is horribly unstable, though.
2011-12-01 10:45:44 +01:00
f460c4abec
Added support for 64-bit interrupts.
2011-11-30 23:30:14 +01:00
f0ec4ffacc
Forgot to push %rbp in x64/syscall.s
2011-11-29 11:45:00 +01:00
0b1c2a77c9
x64 now compiles again and runs on real hardware.
...
A nasty bug was fixed that caused triple faults on systems with > 1 GiB RAM.
2011-11-29 01:31:54 +01:00
8c146f14c0
Added uptime(1).
2011-11-28 16:29:53 +01:00
f232a054d3
Added O=-ON and PANIC_SHORT=1 variables to the makefile.
2011-11-28 15:25:00 +01:00
cd936886e6
Writing to /dev/vga hides the cursor until a write to /dev/tty.
2011-11-27 12:03:33 +01:00
4f3a7230b0
Destroying the addressspace after exit prevents leak of at least 16 KiB.
2011-11-27 12:02:34 +01:00
06909c6df9
Fixed panic when executing non-existent file.
2011-11-27 00:20:23 +01:00
bd1b1fe3bc
Added isatty(2), which is used by editor.
2011-11-26 21:00:40 +01:00
3f50a335bb
devfs now correctly manages sizes of files.
...
This fixes a regression caused by the RAM fix a few commits ago.
2011-11-26 21:00:37 +01:00
ce9787a439
Greatly reduced RAM usage in ramfs.
2011-11-26 20:25:25 +01:00
9152443816
Added memstat, a program for displaying memory usage.
2011-11-26 20:14:57 +01:00
b6a0fd0374
Removed deprecated VGA API and moved it to /dev/vga.
2011-11-25 13:38:31 +01:00
724305f3a7
Merge commit '7a233f2938f4e28d61504853e2f6daf4904aab33'
...
Conflicts:
sortix/fs/ramfs.cpp
2011-11-24 15:38:45 +01:00
e72d086a8f
Disallow / in filenames in ramfs.
2011-11-23 17:51:18 +01:00
5bf22b2c4a
ramfs doesn't allow opening files as directories.
2011-11-23 14:14:59 +01:00
2b032b0414
Initial signal support. Please squash improvements into this commit.
2011-11-23 00:19:09 +01:00
46c0cc6a12
-1 is no longer an allowed system call.
...
This treats a nasty bug where forking and exiting before the child
causes the kernel to panic, because the syscall -1 is run, which
just contains a trash value that happened to be 0.
The cause is still unknown. Might be the scheduler.
This won't help me sleep at night.
2011-11-22 22:08:34 +01:00
b15763b2de
Fixed descriptors not being reset by SysExit.
...
Indirectly, this fixes the snake; snake; panic bug.
2011-11-22 19:12:04 +01:00
e234e0a2d4
execve(2) now sets errno=EACCESS on non-buffer files.
2011-11-22 18:21:01 +01:00
9deb183786
The ELF loader now uses errno.
2011-11-22 18:06:40 +01:00
1b56d01f17
Improved error codes in devfs.
2011-11-22 17:56:58 +01:00
9f35df813e
Implemented errno(3), added support in both kernel and utils.
2011-11-22 17:26:47 +01:00
8678ad6444
/ is no longer a valid filename under ramfs.
2011-11-22 15:33:47 +01:00
2c3fb60d52
execve(2) now works relative to current dir.
2011-11-22 15:27:58 +01:00
e8fb8d885b
execve(2) can now load programs from the filesystem.
...
Previously it was restricted to only the ramdisk.
2011-11-22 14:02:33 +01:00
324a9a1a22
Fixed bug in initfs causing panics.
2011-11-22 12:44:23 +01:00
55240fb3f5
Added devfs, with files /tty and /null and mounted it at /dev.
2011-11-21 21:49:13 +01:00
91a97a2667
Mount-points are now handled properly within the kernel.
2011-11-21 19:39:13 +01:00
8b2b52b9f6
Added unlink(2) and rm(1).
2011-11-21 19:01:56 +01:00
d4590cefa1
Added chdir(2), getcwd(2), which mxsh and ls now uses.
2011-11-21 12:19:57 +01:00
eb035d6a4a
Fixed tripple-fault when creating a new frame, after the current was gc'd.
...
We'll need to get rid of that awful VGA sometime soon.
2011-11-21 00:27:10 +01:00
313079483a
Missing files from the previous two commits. Ooops!
2011-11-21 00:19:55 +01:00
0b90ab534f
ramfs now supports O_TRUNC.
2011-11-21 00:12:20 +01:00
23fde42249
Added readdirents(2), which ls(1) now uses, and added dir devices.
...
The initfs and ramfs are now able to list their contents.
2011-11-21 00:02:53 +01:00
e3bb0dfc9d
Fixed bug in previous commit. Ooops.
2011-11-20 22:48:22 +01:00
c1849ed7d8
/ is no longer a valid filename in ramfs.
2011-11-20 22:47:39 +01:00
06c0777193
Improvements to sortix/mount.cpp
2011-11-20 17:07:34 +01:00
a6a2c400bf
Hard-code-mounted the initd at /bin.
2011-11-20 16:25:55 +01:00
190989646b
Added an filesystem able to browse the initrd.
2011-11-20 16:25:32 +01:00
446616b3aa
Improved JSVM compabillity.
2011-11-20 15:58:42 +01:00
002a1f9ea6
Hardcoded the PWD as '/'.
2011-11-19 10:32:29 +01:00
a0eebc01db
Added sortix/fs to the sortix/Makefile DIRS variable.
2011-11-19 01:08:51 +01:00
013e11ca5e
Added a RAM filesystem.
2011-11-19 00:57:17 +01:00
ae423eaeef
Added open(2).
...
Please note that mount points and file systems do not exist yet.
2011-11-19 00:57:17 +01:00
15329187b9
Unrefing a device that has never been ref'd will also destroy it.
2011-11-17 23:14:45 +01:00
708643d0f2
Fixed bug in dup(2).
2011-11-17 23:03:14 +01:00
dd349a150a
Merge branch 'master' of gitorious.org:sortix/sortix
...
Conflicts:
libmaxsi/c/hsrc/unistd.h
libmaxsi/io.cpp
sortix/io.cpp
sortix/syscallnum.h
2011-11-17 22:28:20 +01:00
05196f49b2
Added dup(2).
2011-11-17 20:34:04 +01:00
e8cd27c353
Added close(2) and fixed bugs in pipe(2) and others.
2011-11-17 10:22:43 +01:00
a7de7b4905
Added pipe(2), write(2), and read(2).
2011-11-16 21:21:38 +01:00
ae599b6d67
Argv now works in main.
2011-11-09 23:18:26 +01:00
9ba01ad3b2
Oh my god, did I include thread.cpp into kernel.cpp!?
2011-11-07 14:36:35 +01:00
024f1581ea
Added the wait() and waitpid() system call.
2011-11-07 00:59:48 +01:00
851ee78903
Added some support for blocking system calls in the kernel.
2011-11-07 00:48:20 +01:00
cfd7648ca9
Added the _exit() system call.
...
exit() will not call _exit() yet, we need support for wait() in the shell.
2011-11-05 20:19:36 +01:00
09b1252821
Added an AsIs() function to the Syscall namespace.
2011-11-05 20:03:17 +01:00
196e958336
Added a CPU::ShutDown() function.
2011-11-05 19:13:16 +01:00
884ce30c07
The scheduler now keeps track of the initial process.
2011-11-05 18:49:30 +01:00
f9e10ab265
Added an API for user-space to list the initrd, and 'ls' does so now.
2011-11-03 18:26:43 +01:00
329c8cc468
Merge gitorious.org:sortix/sortix
2011-11-02 20:37:04 +01:00
0fdfa570cc
Removed obsolete IKeystrokable.
2011-11-02 19:43:48 +01:00
52a228861e
cr2 isn't pushed by pushal.
2011-11-02 19:27:46 +01:00
e110594ab2
Processes are listed in a global array sorted after pid.
2011-11-02 17:51:01 +01:00
2db3c902fb
Fixed missing breaks in switch in vgaterminal.cpp.
2011-11-02 11:39:02 +01:00
2afe9d1fd6
Implemented the fork() system call and what it needed to work properly.
...
This commit got completely out of control.
Added the fork(), getpid(), getppid(), sleep(), usleep() system calls, and
aliases in the Maxsi:: namespace.
Fixed a bug where zero-byte allocation would fail.
Worked on the DescriptorTable class which now works and can fork.
Got rid of some massive print-registers statements and replaced them with
the portable InterruptRegisters::LogRegisters() function.
Removed the SysExecuteOld function and replaced it with Process::Execute().
Rewrote the boot sequence in kernel.cpp such that it now loads the system
idle process 'idle' as PID 0, and the initization process 'init' as PID 1.
Rewrote the SIGINT hack.
Processes now maintain a family-tree structure and keep track of their
threads. PIDs are now allocated using a simple hack. Virtual memory
per-process can now be allocated using a simple hack. Processes can now be
forked. Fixed the Process::Execute function such that it now resets the
stack pointer to where the stack actually is - not just a magic value.
Removed the old and ugly Process::_endcodesection hack.
Rewrote the scheduler into a much cleaner and faster version. Debug code is
now moved to designated functions. The noop kernel-thread has been replaced
by a simple user-space infinite-loop program 'idle'.
The Thread class has been seperated from the Scheduler except in Scheduler-
related code. Thread::{Save,Load}Registers has been improved and has been
moved to $(CPU)/thread.cpp. Threads can now be forked. A new CreateThread
function creates threads properly and portably.
Added a MicrosecondsSinceBoot() function.
Fixed a crucial bug in MemoryManagement::Fork().
Added an 'idle' user-space program that is a noop infinite loop, which is
used by the scheduler when there is nothing to do.
Rewrote the 'init' program such that it now forks off a shell, instead of
becoming the shell.
Added the $$ (current PID) and $PPID (parent PPID) variables to the shell.
2011-11-01 01:00:20 +01:00
c705bf39ff
Ported kernel to new syscall API and started cleaning up the old one.
2011-10-27 00:20:28 +02:00
011e6eca95
Added the string for the SIMD Floating-Point exception.
2011-10-26 02:25:27 +02:00
4e8c2dfc33
Better mm comments.
2011-10-22 15:17:58 +02:00
b0df5186e6
Fixed two very nasty bugs in the x86 memory management code.
...
1) The PML2 was not initialized to zeroes, thus leaving some bits behind that
caused the fork code to go crazy, forking the unforkable, and mapping addresses
that never, ever, should have been mapped, leaving behind a trail of page faults
and general protection faults on some computers, while other computers worked
because the uninitalized memory just wasn't uninitialized enough. Yep, this was
a schrödinbug!
2) Fixed a time bomb. The kernel heap was accidentally put such that whenever a
few megabytes were allocated, it would begin overwriting the physical page stack
causing unthinkable events to unfold and would probably be even more obscure to
debug than 1).
Oh, and some string errors fixed and removed RunApplication from kernel.cpp,
funny thing that even linked in the first place. Guess, the optimizer actually
did work for once. :)
2011-10-20 03:52:08 +02:00
5082e6523c
Updated git version to 0.5dev.
2011-10-10 20:14:37 +02:00
1b7dc2d817
Fixes to memory management that helps me sleep at night.
2011-10-10 17:22:03 +02:00
c16bdd2604
Added a friendly warning that X64 cannot boot fully when booting X64.
2011-10-10 01:16:36 +02:00
4579384312
Ported the GDT and TSS to x64.
2011-10-10 01:16:36 +02:00
a1cf7e9dbc
Removed unneeded and unused old memory management assembly.
2011-10-10 01:14:14 +02:00
66192d1e86
Rewrote memory management again and added support for x64 and forking.
2011-10-10 01:02:57 +02:00
f1848b9932
Added comments to x64/boot.s.
2011-09-21 21:08:43 +02:00
4bc2841ef0
Restored the partial support for x64.
2011-09-08 21:09:14 +02:00
cc61176e5b
Restored support for JSSortix using very ugly hacks. :(
2011-09-08 11:10:41 +02:00
3859e1f566
Refactored interrupt system and got rid of old not-mine code.
2011-09-07 18:45:07 +02:00
4e05eb33d8
Ignore the ramdisk in sortix/.
2011-09-07 17:50:11 +02:00
1a2446fca6
Added a friendly message on panic, and SIGSEGV no longer panics.
2011-09-07 17:48:01 +02:00
c157e65352
Removed lots of deprecated suff!
2011-09-06 19:51:47 +02:00
6ae297d088
Ugly hacks to restore support for Sortix on real hardware.
2011-08-28 16:59:07 +02:00
2c18d43359
Added the programs ls and help.
2011-08-28 12:38:01 +02:00
34e9ca277d
Added a shell, a few programs, and added support for SIGINT.
2011-08-28 12:38:01 +02:00
2f9d08a800
Added a process execute API.
2011-08-28 12:38:01 +02:00
011addf46c
The initrd now uses the mkinitrd format and the kernel now loads it.
2011-08-28 12:38:01 +02:00
d9c0c8d0cd
Added a driver to parse the Sortix init ramdisk.
2011-08-27 20:08:33 +02:00
fa7834b5d6
Added a mkinitrd program that creates initrds for Sortix.
2011-08-27 16:57:03 +02:00
5c86cb4abd
Processes now remember the memory segments it has loaded.
2011-08-27 16:46:00 +02:00
1fd4e6b63e
Minor change in keyboard.cpp.
2011-08-23 21:02:15 +02:00
8d86dc6f6a
Changing the sound frequency no longer prints to the terminal.
2011-08-23 21:02:15 +02:00
cd78c42c78
VGA Cursor code is now in vga.cpp.
2011-08-23 21:02:15 +02:00
013c5b5e71
Processes in the initrd are now made from ELF files.
2011-08-23 21:02:00 +02:00
4898343e2f
The ELF loader now uses program headers and not section headers.
2011-08-23 18:16:44 +02:00
b705bf27a1
Fixed bug in MapRange{User,Kernel}.
2011-08-23 18:16:44 +02:00
9db2c88aca
Sortix can now load ELF executables into addresses spaces.
2011-08-23 00:42:56 +02:00
e5eaf3eeb5
Added the MapRange virtual memory functions.
2011-08-23 00:33:57 +02:00
b80195dc19
Implemented the new physical page allocator API.
2011-08-22 21:12:55 +02:00
d392045559
Extended and documented the memory management API.
...
Physical paging have been extended with Page::Insert() and Page::GetStats()
which allows the physical paging system to add new pages to the physical page
allocator, and still keep the "free/used pages" count accurate, and providing
this information to the kernel (and user-space at some point).
The virtual memory API has been extended with RemapKernel(), RemapUser(),
MapRangeKernel(), UnmapRangeKernel(), MapRangeUser(), and UnmapRangeUser().
This huge number of related functions have been created in the hope that it
hides the internal complexity of portable virtual memory management and avoid
bugs. It is crucial that the correct group of functions are used when solving
a problem and that they are not mixed in a manner not documented.
I probably overdocumented the code - hopefully it should help avoiding making
stupid or bothersome code.
Another problem is that code calling Page::Get() often should call something
like Page::AlwaysGetPageEvenIfYouHaveToSwap(). I'd be swell to have a function
that always gets a page under heavily-swapping conditions. Possibly Page::Get()
could become that?
2011-08-22 21:05:10 +02:00
4c1cb806ba
Added a sound api.
2011-08-22 00:25:28 +02:00
47c44caa8d
Fixed move-cursor-left bug in vgaterminal.
2011-08-21 12:52:56 +02:00
9ee93082c5
Hello is now a hello world sample ANSI text editor.
2011-08-21 12:52:56 +02:00
4db550c13b
Added libmaxsi keyboard API, allowing user-space to use the keyboard.
2011-08-21 12:52:56 +02:00
ed2b3cb5c9
Prevented user-space from issueing non-user-space interrupts.
2011-08-12 21:00:15 +02:00
ec8c0c533b
Removed accidentally included infinite debug loop in kernel.cpp.
2011-08-12 20:13:31 +02:00
a2f70f358c
Added linebreaks after maxsi logo.
2011-08-12 20:09:40 +02:00
9995354f95
Moved CPU code shared by x86 and x64 into x86-family.
2011-08-12 17:33:18 +02:00
4728809c00
The serial terminal now clears the screen using ANSI when initialized.
2011-08-12 17:29:45 +02:00
64d191a882
x86 now has a driver for rebooting.
2011-08-12 15:13:18 +02:00
15ce53919c
Added VGA API allowing userspace to easily access 0xB8000.
2011-08-11 22:03:13 +02:00
1026354e98
Sortix now uses the Device class.
...
This class is very WIP and is just experimental.
2011-08-08 15:20:08 +02:00
e95eb60d31
Provide a virtual address where pages can be temporarily mapped.
2011-08-08 15:20:02 +02:00
6ae7ddbcb3
Descriptors are now public members in processes.
2011-08-08 15:20:02 +02:00
412d3e78b2
AlignDown and AlignUp aligns an address on a page boundary.
2011-08-08 15:20:02 +02:00
e78443d92a
Processes now keep track of where their code section ends.
...
This is very hacky, but allows us to allocate address space.
2011-08-08 15:19:49 +02:00
db34033d40
Removed unneeded #includes from sortix/memorymanagement.cpp.
2011-08-07 20:14:26 +02:00
07b409c1a0
Added a wrapper class for handling file descriptors.
2011-08-07 19:47:43 +02:00
294e5d72dd
All of the initrd is now loaded.
2011-08-07 01:30:47 +02:00
794630a802
Adding proper .gitignore files.
2011-08-07 01:22:36 +02:00
185c6d4b6f
Processes (and thus threads) now belong to an address space.
...
Changing theads now automatically switches the adress space.
2011-08-07 01:17:53 +02:00
90ebfe7f0a
Improvements to the address space switching function.
...
It now only switches when needed and returns the old addr space.
2011-08-07 01:16:53 +02:00
66c058fba1
Refactored virtual memory management, making it less buggy.
...
uintptr_t is now replaced with addr_t when referring to physical memory
addresses in Sortix. Many bugs in the previous memory management code have been
fixed. The new interface is less flexible - but should prove more solid as the
nasty internals have been hidden away. The current interface design should also
make the code more 64-bit ready/friendly. And so on.
2011-08-07 00:18:41 +02:00
9b79673dcb
Initial version of Sortix.
2011-08-05 14:25:00 +02:00
Jonas 'Sortie' Termansen