Changelog-evocation

Changelog for the porting of linux-0.99.12 to gcc 5.7 and making it run under qemu.

May 4
- Fixed spurious keyboard "7"s when running under qemu and moving the mouse, or detaching from the UI and then pressing a key

May 1
- Got UDP and TCP working by fixing checksum assembly
- Enabled NFS FS
- Enabled PLIP and SLIP
- Removed last WGJA TODO :)

Apr 30
- Got ICMP  working by fixing ip_compute_checksum assembly

Apr 17
- Got ne network adapter working

Apr 16
- Removed unnecessary ELF section since networking compilation was creating a too large kernel to fit in memory
- Enabled inet networking protocol. Not a lot working yet though.

Apr 14
- Added unix networking protocol

Apr 5
- Added CONFIG_INET ...

Apr 3
- Enabled ext fs
- Enabled xia fs

Apr 2
- Enabled everything related to SCSI
- Enabled XT HD controller
- Enabled cdu31a Sony cdrom
- Enabled mcd Mitsumi cdrom 
- Added iso9660 fs
- Added sys_modify_ldt
- Added trace and ptrace

Mar 29
- Added tpqic02
- Added lp
- Added pty

Mar 28
- Enabled ipc
- Enabled FPU emulation
- Finished main.c, no more TODOs in there

Mar 26
- Added sys_select
- Enabled core_dump
- Added calibrate_delay(), timers & alarms
- Reduced calibrate_delay() loop time from 100 ticks to 10 ticks for faster booting.
- Enabled bad_page and bad_pagetable
- Enabled sys_swapon, sys_swapoff
- Enabled code for CONFIG_PROFILE

Mar 25
- Fixed fs sequence point errors under gcc 5.4.0

Mar 24
- Added proc fs
- Added serial chrdev

Mar 23
- Added ext2 fs & ramdisk support for it
- Added hard disks

Mar 20
- Added sys_uselib. A dynamically loaded hello world, with libc.so.4 is now working.
- Added sys_fcntl

Mar 19
- Added execve
- Added sys_brk, sys_ioctl, sys_sysinfo stat* and sys_readlink syscalls

Mar 14
- Added sys_mmap and sys_munmap

Mar 12
- Added console
- Added traps, page faults, sys_exit and sys_close
- Enabled do_signal, waitpid, getrusage, wait4
- Enabled a whole load of trivial syscalls
- Added start_kernel: time_init
- Added mount & unmount syscalls

Mar 9
- Added tty, tty io, tty ioctl and keyboard

Mar 8
- Added rmdir syscall

Mar 5
- Most of generic block devices
- Floppy and ramdisk block devices
- Most of the VFS
- Minix FS
- New syscalls: fsync, lseek, open, pipe, read, readdir, setup, sync, write
- start_kernel: init() with working minix root mount from ramdisk using floppy to load the ramdisk
- Squashed a load of fpermissisve errors by redeclaring NULL without void*.
- Some test code for minix and /dev/zero

Feb 28
- Added memory character devices

Feb 27
- Added start_kernel: parse_options()

Feb 24
- Added fork()

Feb 19
- Added kmalloc(), kfree() and *free_page() functions 

Feb 18
- start_kernel: move_to_user_mode()
- working sys_idle syscall
- start_kernel: mem_init()

Feb 17
- start_kernel: init_sched(), with quite a few compromises. It runs and the timer ticks, but not much else is happening.

Feb 16
- start_kernel: init_IRQ()

Feb 15
- start_kernel: Added some misc initialisations, such as screen, fs & device values from setup & head
- start_kernel: trap_init()

Feb 14
- start_kernel: paging_init()

Feb 12
- start_kernel: Added set_call_gate for ibcs. It's not really testable though since it's not more than a stub.
- Added early printk

Feb 10
  - Got boot/head.S working, with stubs for printk and start_kernel.

Feb 6
  - Added changes for producing a zImage from ELF32 binaries
  - Got zBoot working
  - So far everything runs until boot/head.S startup_32

Feb 4
  - Fixed last warning in tools/build.c

Feb 2
  - Got tools/build compiling
  - Fixed bootsect and setup
  - bootsect & setup are working using a pre built zBoot/zSystem from slackware 1.0.1
  - Set vga mode to 1, to avoid the annoying prompt for missing VGA mode 3 in qemu