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577a2bffe45b49e6889f886dde490d7820df2f66
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10 Commits

Author SHA1 Message Date
Bahadir Balban
fb249b0c5b Fixed wrong directory name issue, strlen() was off by one. 2008-04-15 01:51:13 +01:00
Bahadir Balban
7b2f9f96cf os_readdir() now using utcb as dirent buffer. 2008-04-13 16:32:34 +01:00
Bahadir Balban
4b1abc60a6 Various minor fixes. 
Removed some commented out code.
Removed excessive printfs.
Fixed spid not initialising for mm0
Fixed some faults with fs0.

TODO:
- Need to store vfs files in a separate list.
- Need to define vnum as a vfs-file-specific data, i.e. in priv_data field of vm_file.
- Need to then fix vfs_receive_sys_open.
 2008-03-24 22:39:21 +00:00
Bahadir Balban
16617eed36 Various changes to incorporate new utcb setup. 
Issues with l4_return value not reaching client side
	modified:   libs/c/include/stdio.h
	modified:   src/arch/arm/exception.c
	modified:   src/glue/arm/init.c
	modified:   tasks/fs0/src/task.c
	modified:   tasks/libl4/include/l4lib/arch-arm/utcb.h
	modified:   tasks/libl4/src/arm/syscalls.S
	modified:   tasks/libl4/src/init.c
	deleted:    tasks/libl4/tagfilelist
	modified:   tasks/libposix/open.c
	modified:   tasks/mm0/include/utcb.h
	modified:   tasks/mm0/include/vm_area.h
	modified:   tasks/mm0/main.c
	modified:   tasks/mm0/src/init.c
	modified:   tasks/mm0/src/task.c
	modified:   tasks/mm0/src/utcb.c
	modified:   tasks/mm0/src/vm_object.c
 2008-03-19 02:27:53 +00:00
Bahadir Balban
d27f942702 Very minor fixes. 2008-03-13 00:40:12 +00:00
Bahadir Balban
58b833dd7f Forks and COW situations show that we need vm objects rather than vm_files. 
This is the first commit towards implementing vm object based paging with
right COW methods.
 2008-03-03 22:05:01 +00:00
Bahadir Balban
4f346cea53 Added the first means to pass information between 2 tasks using the 
utcb as a shared page instead of the message registers.

Implemented the code that passes task information from mm0 to fs0
using the fs0 utcb. The code seems to work OK but:

There's an issue with anon pages that they end up on the same swapfile
and with same file offsets (e.g. utcb and stack at offset 0). Need to
fix this issue but otherwise this implementation seems to work.

TODO:
- Separate anon regions into separate vmfiles.
- Possibly map the stacks from virtual files so that they can be
  read from userspace in the future for debugging.
- Possibly utcb could be created as a shared memory object using shmget/shmat
  during startup.
 2008-02-29 21:56:05 +00:00
Bahadir Balban
7f9380cc78 Errno is set by the posix calls read/write/open/close etc. rather than their l4_xxx equivalent. 
mmap.c is the only one not done yet.
 2008-02-12 19:17:19 +00:00
Bahadir Balban
6bb5b45212 FS0 compiles now, with a mock-up rootfs. 
Having progress on vfs slowly but surely ;-)
 2008-01-15 00:34:10 +00:00
Bahadir Balban
e2b791a3d8 Initial commit 2008-01-13 13:53:52 +00:00