Commit Graph

728 Commits

Author SHA1 Message Date
Mike Gerow
f53ea98e05 Implement snd mixer interface in ac97.c 2015-05-17 20:31:36 -07:00
Mike Gerow
ad708efd5a Add support for managing mixer knobs to snd interface 2015-05-17 20:31:36 -07:00
Kevin Lange
9df3810da9 Separate pipe write/read locking 2015-05-15 22:51:27 -07:00
Mike Gerow
b06b4af8b9 Add snd sound subsystem.
It's got a long way to go, but this provides basic mixing between
applications.
2015-05-15 01:04:07 -07:00
Mike Gerow
fd8c5db72a Surround list macros in parens in order to allow calls like this:
list_t list;
foreach(node, &list) {
  ...
}
2015-05-15 01:04:07 -07:00
Kevin Lange
e1720dbc8a Fix allocation of common symbols in modules
Fixes #87
2015-05-14 09:47:23 -07:00
Kevin Lange
66938e3123 Fix symbols not marked extern 2015-05-14 09:32:52 -07:00
Mike Gerow
ac17214207 Added ability to check if an IRQ is already occupied.
A proper solution would probably be to introduce shared IRQs at some
point in time.
2015-05-13 01:33:05 -07:00
Kevin Lange
648aedc0a4 Use a different resynch strategy for timer 2015-05-01 23:01:12 -07:00
Kevin Lange
4fd1ae9aa3 Support scrollwheel mice 2015-04-26 18:05:14 -07:00
Kevin Lange
7344a50fe0 Major changes to timing interfaces
- The kernel version has been bumped to 0.9.0
- The timer resolution in the kernel has been increased to millseconds.
- The preemptive scheduling interval has been descreased to one
  millisecond.
- Relative sleep continues to use 10 millsecond intervals for legacy
  reasons.
- `gettimeofday` now uses the internal tick counter to calculate the
  current time. Drift is calculated from the CMOS every 5 seconds and
  applies only to `gettimeofday` and other places that use it.
- The resolution of timing information provided by debug functions has
  been increased to three digits (milliseconds).
- The resolution of timing information provided by the procfs uptime
  virtual file has been increased to three digits (milliseconds).
- Functions have been added to the debug shell to read the TSC. The TSC
  is not used in timing functions at this time.
2015-04-14 23:05:07 -07:00
Kevin Lange
4a36d6bb9e Fix a potential deadlock and improve irq on/off 2015-04-13 23:39:23 -07:00
Kevin Lange
5f84e679ca Add more flags to <ipv4.h> 2015-04-04 12:18:36 -07:00
Kevin Lange
a73a033a29 Experimental updates to write support in ext2 (incomplete, internals only) 2015-02-11 23:12:01 -08:00
Kevin Lange
990d6ae269 Fix #54 - missing close/free in sys_chdir 2014-10-07 10:46:54 -07:00
Kevin Lange
6d2bcef1cb Fix root= argument 2014-08-15 16:25:15 -07:00
Kevin Lange
09a38b3abb Remove unused label 2014-06-11 18:51:36 -07:00
Kevin Lange
87c212017b Various bits of cleanup to unbreak mounting 2014-06-09 21:21:46 -07:00
Kevin Lange
17e332b5e7 expose mounting to userspace 2014-06-09 20:13:11 -07:00
Kevin Lange
d3cddf169a And then some more magic to merge the vimhints and the copyright headers 2014-06-07 23:58:31 -07:00
Kevin Lange
1287af81ef Reinsert vim hints magically 2014-06-07 23:51:01 -07:00
Kevin Lange
71fa8d5185 ... missed a couple 2014-06-07 23:48:18 -07:00
Kevin Lange
a2ed4b4f0e strip vim: lines from kernel 2014-06-07 23:43:21 -07:00
Kevin Lange
e1a9cd87d2 Include additional contributors in kernel/main.c 2014-06-07 23:31:45 -07:00
Kevin Lange
ef7d72c1e1 License headers and a tool to generate them 2014-06-07 23:13:29 -07:00
Kevin Lange
dcaa023347 Processes now inherit names 2014-06-07 18:32:10 -07:00
Kevin Lange
02dbc0e1f4 some vague attempt at revealing links in stat 2014-06-07 12:58:45 -07:00
Kevin Lange
f21ab2b3fb Default st_nlink to 1, not 0 2014-06-05 22:19:46 -07:00
Kevin Lange
34d81fca37 Probably fix mkdir in tmpfs 2014-06-05 19:08:07 -07:00
Kevin Lange
3f6a5e0fdc remove debug output from shebang exec 2014-06-03 23:21:38 -07:00
Kevin Lange
3e03dffc4b merge 2014-06-03 23:20:46 -07:00
Kevin Lange
5eacca2361 Fix argument handling and recursive shebangs 2014-06-03 20:42:59 -07:00
Kevin Lange
4733a26c74 Fix argument offsets 2014-06-01 23:37:00 -07:00
Kevin Lange
389f20f140 fairly naïve shebang implementation 2014-06-01 23:10:11 -07:00
Kevin Lange
fb49a12728 Add reverse foreach for lists 2014-06-01 12:56:55 -07:00
Kevin Lange
9eb63b4bfd more room for panic messages 2014-06-01 01:32:33 -07:00
Kevin Lange
6296aff867 Fix handling of eof in login 2014-05-30 17:05:49 -07:00
Kevin Lange
9eef96cb6a ^D should actually not echo 2014-05-29 23:41:17 -07:00
Kevin Lange
d4b334f119 Remove redundant r_b_interrupts in tty 2014-05-29 22:08:52 -07:00
Kevin Lange
53aee7dc38 Implement ^D 2014-05-29 21:39:56 -07:00
Kevin Lange
84420f9e5c Support closing packetfs connections 2014-05-28 19:21:56 -07:00
Kevin Lange
252fe84ab0 Close and cleanup before we reap. 2014-05-27 23:20:02 -07:00
Kevin Lange
c5d79b2bc6 Fix a memory leak in file opening 2014-05-27 22:52:37 -07:00
Kevin Lange
049057cd23 reenable sigpipe delivery 2014-05-27 21:42:22 -07:00
Kevin Lange
d696f51f8b Real unix pipes 2014-05-27 21:38:30 -07:00
Kevin Lange
ab2a9f056f Quick and dirty display server nesting - lots of mouse event changes 2014-05-26 12:43:22 -07:00
Kevin Lange
f054cebdce naive implementation of sudo and possibly insecure setuid support 2014-05-25 21:59:51 -07:00
Kevin Lange
18251f66c1 Merge pull request #46 from lioncash/leak
Fix a memory leak within vfs.c in kopen.
2014-05-21 17:55:49 -07:00
Lioncash
935f594cd3 Fix a memory leak within vfs.c in kopen. 2014-05-21 20:41:26 -04:00
Lioncash
55bf5fe03d Fix incorrect module size in kmain. 2014-05-21 20:22:24 -04:00
Kevin Lange
290eb0f344 Some IRC cleanup 2014-05-19 19:39:04 -07:00
Kevin Lange
dff654ae93 Reduce debug messages for waitpid to INFO level 2014-05-18 10:27:28 -07:00
Kevin Lange
1dfa71aee9 A start on cleaning up network stack 2014-05-17 23:16:30 -07:00
Kevin Lange
03f8f5062c Interactive IRC connection 2014-05-17 12:40:01 -07:00
Kevin Lange
3ae82af245 Fix DHCP packets 2014-05-14 00:37:06 -07:00
Kevin Lange
98d6516cd4 Craft our own packets instead of using prebuilt ones 2014-05-13 22:09:15 -07:00
Kevin Lange
1f3066d949 Display graphical panic on out-of-memory 2014-05-10 20:22:04 -07:00
Kevin Lange
913c4b004f make the video panic screen display a message 2014-05-10 19:12:31 -07:00
Kevin Lange
898c5f23d3 Desaturate entire display on kernel panic 2014-05-10 14:03:13 -07:00
Kevin Lange
e37fdd2b4b Various bits of cleanup; actually examine packets 2014-05-08 19:29:23 -07:00
Kevin Lange
cecf4f619d Oops, only do that for certain allocations 2014-05-07 00:09:15 -07:00
Kevin Lange
d50710e250 Fix erroneous irq ack 2014-05-06 23:27:58 -07:00
Kevin Lange
e5a8ed3a68 Not the cleanest, but better than before... 2014-05-06 22:38:21 -07:00
Kevin Lange
b824abf250 Kill lwip stuff; add back in native rtl driver
Now with actual working stuff.
2014-05-06 22:14:05 -07:00
Kevin Lange
5319ce7e80 Fix an edge case failure in elf allocation 2014-05-03 15:35:24 -07:00
Kevin Lange
15c0208e99 Show user EIP for segfaults in kernel 2014-05-03 15:35:03 -07:00
Kevin Lange
ce48da7973 Fix debug_shell module 2014-05-03 00:15:07 -07:00
Kevin Lange
edd086b4aa Bump version to 0.7.2 2014-05-02 23:28:27 -07:00
Kevin Lange
10e241e982 Fix non-syscall validate 2014-05-02 19:28:14 -07:00
Kevin Lange
976c086e9c Define num_syscalls at compile time 2014-05-02 18:52:43 -07:00
Kevin Lange
fe19f4ad19 Extensive syscall table cleanup 2014-05-02 18:47:41 -07:00
Kevin Lange
bff1314c29 Add a header with syscall numbers 2014-05-02 18:34:38 -07:00
Kevin Lange
ac32220090 Remove disabled block of unneeded code in fork 2014-05-02 18:34:25 -07:00
Kevin Lange
bd73b07da9 Drop a few more legacy syscalls 2014-05-02 10:58:28 -07:00
Kevin Lange
e16043684a Only bother to deliver non-ignored blocked signals
So we don't accidentally interrupt a read or something.
2014-04-29 00:52:36 -07:00
Kevin Lange
4d8335ad75 Implement proper wait/waitpid.
This is a pretty big commit, so let's run through it in parts:

- All of the userspace changes are to switch away from syscall_wait
  Mostly, this is to waitpid; some things were tweaked to do things
  "properly" instead of waiting for particular processes. Init has
  been fixed to do a proper spin wait.
- syscall_wait is gone - as are its uses. newlib bindings have been
  using just waitpid for a while now.
- waitpid now performs like a Unix waitpid
- process reaping is no longer a "do this on next change thing":
  it happens when a process is waited on, like it should
  (That means we can have real zombies: terminated processes that
  have not yet been waited on)
- Reparenting of children to init has been implemented, so you
  can fork-daemonize!

Overall, this is pretty big... So I hope it doesn't break everything.
2014-04-27 01:37:33 -07:00
Kevin Lange
1c65d3d663 Include git short sha in version string instead of -dev 2014-04-26 22:17:30 -07:00
Kevin Lange
2db3fccd24 Do a better job with page table management 2014-04-25 23:17:20 -07:00
Kevin Lange
f9db32ec99 Bump version 2014-04-25 20:39:09 -07:00
Kevin Lange
1f235bb3e7 Don't forget to invalidate page directories after we free everything 2014-04-25 20:02:30 -07:00
Kevin Lange
8a786b6ffe Fix some potential mapping issues 2014-04-25 19:48:43 -07:00
Kevin Lange
4beb3a42dc throw frame allocation behind a lock so it's atomic 2014-04-25 00:15:08 -07:00
Kevin Lange
dedc201bc1 Ensure {0,0} auxv makes it into memory 2014-04-24 23:02:28 -07:00
Kevin Lange
e2a6ce072d Fix call to external malloc from klrealloc 2014-04-24 22:38:12 -07:00
Kevin Lange
e3ffd36083 Fix critical exec issue with not freeing old dir
We weren't freeing old page directories on exec, so regardless of the
actual size needed for the new process, we ended up with a huge address
space usage. Now, all of the memory from the other process is going to
be copied on the fork, and we can't do anything about that (beyond
writing a separate syscall that forks+replaces without the copy, or
implementing CoW, the latter being preferred) but that's at least a
well-know "problem".
2014-04-24 00:03:55 -07:00
Kevin Lange
c31bedd69e Let's just ... not do that 2014-04-21 19:40:28 -07:00
Kevin Lange
d0bfc0a5bb Efficient reallocation of SHM chunks (mostly) 2014-04-20 17:11:35 -07:00
Kevin Lange
d967fae3a5 Track down the root of that malloc problem 2014-04-20 13:19:52 -07:00
Kevin Lange
d99dc5688e Fix a glitch with signal handling 2014-04-19 19:10:22 -07:00
Kevin Lange
ff56f48ed5 Handle common symbols in module loader 2014-04-19 13:21:56 -07:00
Kevin Lange
3459f19443 List all undefined symbols before bailing when loading modules 2014-04-19 00:08:42 -07:00
Kevin Lange
ead93c5307 Probably as good a time as any to mark off 0.7.0 2014-04-18 20:40:25 -07:00
Kevin Lange
9b3cfc7fe6 More gracefully handle cases where ramdisk is big 2014-04-15 23:10:00 -07:00
Kevin Lange
6c6c3e18c1 Don't spam the log when increases the kernel heap 2014-04-15 19:57:25 -07:00
Kevin Lange
9ad1b50cb8 Change how we determine that a process is in a queue 2014-04-13 02:05:12 -07:00
Kevin Lange
d43f517464 Remove a lock from something that shouldn't be locking anyway 2014-04-13 02:05:01 -07:00
Kevin Lange
7d2083cae9 handle printf("%s", NULL) without crashing 2014-04-13 02:04:34 -07:00
Kevin Lange
20a1c56023 Fix some major paging issues 2014-04-13 02:04:01 -07:00
Kevin Lange
c1a2c312bb Fix a typo and a potentially crash with timers 2014-04-13 02:03:11 -07:00
Kevin Lange
d25e66b4bf Fix a null dereference from lists/trees 2014-04-13 02:02:17 -07:00