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160 Commits

Author SHA1 Message Date
Bananymous e8890062d6 Userspace: Implement basic cp 
This does not support any meaningful command line arguments but
is a good start.
 2023-10-25 00:07:25 +03:00
Bananymous 1e2c2fb973 Shell: Set get old termios earlier 
I sourced the config file before getting old termios. Sourcing
updated the termios so old_termios was always in non canonical, non
echoing mode.
 2023-10-24 19:10:53 +03:00
Bananymous adbbdf73c4 meminfo: fix g++ warning for oob write 
g++ doesn't realize that read can only return -1
 2023-10-24 16:50:21 +03:00
Bananymous f0820e6f24 Shell: Fix parsing $ with unknown character 2023-10-12 22:24:27 +03:00
Bananymous 7ce8e2d57b cat: Use write() instead of puts to print file contents 
This allows printing files that contain null bytes behave more like
you would expect
 2023-10-04 22:16:19 +03:00
Bananymous e780eaa45f meminfo: Print allocated physical memory percentage 2023-10-03 10:39:27 +03:00
Bananymous 44cb0af64f Shell: source $HOME/.shellrc if found on Shell startup 2023-10-03 10:39:27 +03:00
Bananymous bb0989fdef Shell: Implement sourcing scripts 2023-10-03 10:24:10 +03:00
Bananymous f0b6844feb meminfo: Add process command line to the output 2023-09-30 23:17:31 +03:00
Bananymous 797ca65c66 Kernel: Add physical memory info to /proc/{pid}/meminfo 2023-09-30 22:11:45 +03:00
Bananymous 762b7a4276 Userspace: Add meminfo command that parses /proc/{pid}/meminfo 2023-09-30 21:20:53 +03:00
Bananymous 94ce2c97be Shell: Quick fix to not freeze for multiple seconds 
When sync is writing to disk, it reserves whole disk to itself.
This commit makes Shell to read username only once from getpwuid().
We used to get username every time prompt was printed.
 2023-09-29 19:20:48 +03:00
Bananymous 3f164c6b82 Userspace: Implement basic test for MAP_SHARED 2023-09-29 18:59:37 +03:00
Bananymous 7a5bb6a56b Userspace: Implement cat-mmap 
This behaves exactly as cat, but uses mmap to read the file.
 2023-09-29 17:24:55 +03:00
Bananymous 79851394b3 Kernel/LibC/Userspace: Add SYS_POWEROFF + cli tool 
You can now shutdown/reboot banan-os with the poweroff cli tool.

Reboot doesn't seem to work on qemu.
 2023-09-28 12:36:47 +03:00
Bananymous 85b1252b9e Userspace: Use printf length modifiers when printing 2023-09-28 11:49:31 +03:00
Bananymous c84b66d078 Shell: String leading and trailing whitespace from commands 
This fixes a bug of inserting empty argument if command had trailing
whitespace
 2023-09-28 10:28:49 +03:00
Bananymous ec2baeb276 Sync: Add some argument parsing to sync(1) 
You can specify --block to make the program wait until sync is
complete.
 2023-09-27 00:37:23 +03:00
Bananymous fc953df281 Kernel/LibC: remove PATH resoltion from kernel 
I have no idea why I had made PATH environment variable parsing
to be part of the kernel. Now the shell does the parsing and
environment syscall is no longer needed.
 2023-09-23 03:08:14 +03:00
Bananymous 5fae3cec2a Kernel: Implement SYS_SYNC and add sync executable to userspace 
You can (and have to) manually sync disk after writes to it.
 2023-09-11 01:26:27 +03:00
Bananymous 9b4e2e1e21 Kernel: Add basic dd command 
This only supports if, of, bs, count and status=progress
 2023-09-10 01:19:47 +03:00
Bananymous 720bc418a6 All: Clear lines with only whitspace in them 2023-09-10 00:31:42 +03:00
Bananymous afe95be42f Shell: Clean exit on ^D and use getchar() 
Use getchar() instead of fread(&ch, 1, sizeof(char), stdin). This
is much cleaner.
 2023-09-07 15:51:05 +03:00
Bananymous 14ac1c9904 Init: use read instead of fread() 
This allows actually correct behaviour. My fread implementation is
flawed. It should not return on '\n'
 2023-09-07 15:47:59 +03:00
Bananymous 4363118d9d Snake render grid lines without extra space after last '#' 2023-09-05 14:35:53 +03:00
Bananymous f46f5b2050 Snake: Reorder apple generation/snake body update 
If new apple was generated to heads previous position after update,
it would not render.
 2023-09-05 14:30:30 +03:00
Bananymous ddd36af0f1 Kernel: Add /dev/tty symlink that targets the current tty 2023-09-05 01:07:52 +03:00
Bananymous 2e2a913412 Userspace: Implement basic snake game :) 2023-09-04 14:30:45 +03:00
Bananymous b05cf9ef09 BuildSystem: Base sysroot is now distributed as a tar ball 
This allows file and directory permissions work as intended.

cmake is now filled with 'sudo' but with sudo timeout this should be
fine.
 2023-08-23 10:38:21 +03:00
Bananymous a74eb357a1 Shell: hostname is not parsed from /etc/hostname 2023-08-23 10:38:21 +03:00
Bananymous 8eb71084f0 Shell: use process groups more properly 2023-08-22 14:54:50 +03:00
Bananymous 6ada36d3cb Shell/init: We now use pgrp instead of pid and init open terminal 2023-08-22 11:37:04 +03:00
Bananymous 30463c9082 Id: Print username corresponding to uid/euid 
Also print euid and egid if they differ from uid or gid.
 2023-08-18 15:36:51 +03:00
Bananymous eb98d70a0b Shell: command execution and parsing support piped commands 
There is still problems with "blocking" builtin commands (time),
return value, ...
 2023-08-17 12:05:38 +03:00
Bananymous 5bd7099b96 Shell: add basic printf test 2023-08-16 10:49:34 +03:00
Bananymous 5806a6484f cat: use 1025 buffer. this allows reads to be 1024 byte 
reading from disk currently returns ENOTSUP if buffer size is not
multiple of sector size.
 2023-08-16 09:33:14 +03:00
Bananymous 0fa5401800 Shell: $? returns last return value 2023-08-15 09:17:46 +03:00
Bananymous b30f4cbfb5 Userspace: Add basic whoami command 2023-08-15 09:03:51 +03:00
Bananymous ba37183c9c Shell: '\u' in PS1 is replaced with username corresponding to euid 2023-08-14 14:55:23 +03:00
Bananymous 2f298a1979 Shell: ^A moves cursor to the beginning of line 2023-08-14 12:26:22 +03:00
Bananymous 313b00b11f Userspace: implement basic stat 
I tried to format the output pretty much how linux does, except for
uid and git -> name resolution which is not implemented
 2023-08-11 10:30:50 +03:00
Bananymous 9fe878bbec Shell: Print if the process exited because of a signal 2023-08-01 14:24:36 +03:00
Bananymous 679d47131d BuildSystem: Edit build flags regarding sse and warnings 2023-07-31 22:31:17 +03:00
Bananymous 5e434f5131 Kernel: Hardware exceptions now sends signals to userspace 2023-07-30 14:34:15 +03:00
Bananymous 00f1f30a08 Kernel: Userspace sets the foreground process and Shell handles ^C 2023-07-28 18:10:36 +03:00
Bananymous adb14ba373 Kernel: Userspace signal handlers are now called one at a time 
I added a syscall for telling the kernel when signal execution has
finished. We should send a random hash or id to the signal trampoline
that we would include in the syscall, so validity of signal exit can
be confirmed.
 2023-07-23 13:34:53 +03:00
Bananymous ad756c36fc Kernel/LibC: Add SYS_KILL/kill() 2023-07-21 19:27:38 +03:00
Bananymous dcd4d0daeb Kernel/LibC: Add bareboness signals 
You can now call raise() to raise a signal. Signal handlers are
not yet supported, but the handling works :)
 2023-07-21 15:45:02 +03:00
Bananymous e341a36287 Init: Use the new pwd.h api for user parsing 2023-07-13 12:01:41 +03:00
Bananymous 5c94a583bc Userspace: add basic 'touch' command 2023-07-10 16:38:15 +03:00
Bananymous 6e1fc2766f tee: indent with tabs 2023-07-10 16:18:08 +03:00
Bananymous d3bb00cb55 Userspace: Add basic tee command 2023-07-10 16:07:53 +03:00
Bananymous 683c2a68cd Shell: $(...) expansion works now :) 2023-07-06 23:22:57 +03:00
Bananymous ad98181069 Shell: you can call Shell -c ... to invoke the shell as interpreter 2023-07-06 23:22:49 +03:00
Bananymous 21bd87bb07 Userspace: Shell now has 'env' for printing environment 2023-07-06 10:32:43 +03:00
Bananymous 79450df04c Userspace: Shell imporove 'time' command 2023-07-06 09:45:04 +03:00
Bananymous 7f8b7b811e Userspace: Shell now has time builtin 2023-07-06 00:39:04 +03:00
Bananymous 4dce0f9074 Userspace: u8sum fix error message 2023-06-19 10:31:23 +03:00
Bananymous 54f89cba33 Userspace: Shell now processes $ arguments 2023-06-19 01:39:24 +03:00
Bananymous de88f60d1a Userspace: Shell argument parsing now appriciates quotes 2023-06-19 01:07:00 +03:00
Bananymous f7060970e6 Userspace: Shell argument parse now results in BAN::String 2023-06-19 00:34:44 +03:00
Bananymous e7a98ac6cc Userspace: Shell now sets SHELL environment variable 2023-06-18 23:35:51 +03:00
Bananymous 326a30d1af Userspace: Add u8sum 
This program caluculates the sum of bytes in file mod 256
 2023-06-12 20:36:16 +03:00
Bananymous 38dff41e25 Userspace: Shell processes PS1 '\~' as cwd and implement cd 2023-06-12 02:03:13 +03:00
Bananymous d360340b9e Userspace: init now sets HOME environment variable and cd's into HOME 2023-06-12 02:02:52 +03:00
Bananymous eb7ee13f43 Userspace: init now default logins as user 2023-06-12 00:46:07 +03:00
Bananymous b2de706693 Userspace: Shell now uses PS1 as prompt if set 2023-06-12 00:45:47 +03:00
Bananymous 6a8180470d Userspace: Add color to ls 2023-06-11 23:00:19 +03:00
Bananymous 12d56be5cc Userspace: init now sets user and group ids before running their shell 2023-06-11 22:37:00 +03:00
Bananymous bb4d81a4fa Userspace: Add basic id that prints {,e}{uid,gid} of the current proc 2023-06-11 22:37:00 +03:00
Bananymous 51eb44bf40 Kernel/Userspace: Add basic init process 
This process parses /etc/passwd and promps login screen.
When an username is entered, it will launch that users shell
 2023-06-11 22:37:00 +03:00
Bananymous c62e820bcf Kernel: Add basic Credentials for the system 
Now filesystem access/open, etc confirm that you have access for rwxs
 2023-06-11 20:06:06 +03:00
Bananymous 25a2a4879c Userspace: add basic ls command 2023-06-11 03:38:44 +03:00
Bananymous ee8de77a90 Userspace: fix return values of cat and echo 2023-06-10 17:34:10 +03:00
Bananymous e001eecb7b Userspace: add exit to shell 2023-06-09 01:51:23 +03:00
Bananymous 7f34d00c95 Userspace: add echo 2023-06-09 01:50:18 +03:00
Bananymous 2c18adbddd Userspace: add ^L support for shell 2023-06-09 01:24:33 +03:00
Bananymous 064ce568c2 Kernel: add basic support for environment variables 
exec functions will search files from PATH
 2023-06-05 22:51:02 +03:00
Bananymous 3fc2c3529a Shell: load old termios for process execution 2023-06-05 21:12:08 +03:00
Bananymous 2f2c298c68 Shell: add bareboness utf8 support 
This should work as long as TTY provides only valid utf8.
If the utf is invalid, assertion fails and the shell dies.
 2023-06-05 18:55:22 +03:00
Bananymous 90e48970e6 Shell: we now support left/right arrows 2023-06-05 18:24:41 +03:00
Bananymous 9d64dbd5c2 Kernel/LibC: add SYS_STAT and stat(), lstat() 2023-06-05 14:37:14 +03:00
Bananymous 1f36ed0cf9 Userspace: Start work on proper shell 2023-06-05 01:42:57 +03:00
Bananymous a775a920d0 BuildSystem: remove sse and sse2 from userspace 2023-06-03 16:05:32 +03:00
Bananymous a3f410d1a1 Userspace: create_program creates proper cmake files again 2023-06-02 18:42:25 +03:00
Bananymous 1d19a4bffe BuildSystem: all scripts have now bash shebang 
I could not use the scripts on debian
 2023-06-02 18:41:45 +03:00
Bananymous 271dd91292 BuildSystem: add rule to build libstdc++ 
We can now build libstdc++ and actually link with g++
 2023-06-02 18:39:42 +03:00
Bananymous cb359a05dc BuildSystem: link libraries when they change 
This also fixed the need for manual linkin on firt build
 2023-05-31 23:01:40 +03:00
Bananymous 14982c137a Userspace: make test program link against libc on change 2023-05-31 22:36:47 +03:00
Bananymous 0acab11620 LibC: add execl 2023-05-31 22:36:26 +03:00
Bananymous ab61b49aca Kernel: Add SYS_EXEC syscall 2023-05-31 20:57:33 +03:00
Bananymous e640344d7a Kernel: Rename MMU to PageTable 
This is more descriptive name for what it actually represents
 2023-05-29 21:06:09 +03:00
Bananymous 282bf24f65 Kernel: fork() now copies allocations through FixedWidthAllocator 2023-05-28 21:34:35 +03:00
Bananymous 636c308993 Kernel: fork() now copies allocation done through GeneralAllocator 2023-05-28 20:37:39 +03:00
Bananymous 6fdbe6f9c2 Kernel: Add bareboness fork() function 2023-05-28 18:08:49 +03:00
Bananymous 245dff8027 Shell: we now link BAN (we can't use it though) 2023-05-26 22:31:21 +03:00
Bananymous 0ab3332ad3 Userspace: Start work on shell 2023-05-26 22:31:21 +03:00
Bananymous 496adb61a4 Buildsystem: Fix userspace link order 2023-05-26 22:31:21 +03:00
Bananymous f33e78882e Kernel: Add argc and argv to process entry 2023-05-16 00:27:49 +03:00
Bananymous fb1bab7c30 BuildSystem: add helper to create userspace programs 2023-05-11 18:10:06 +03:00