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764948b51f2464156de955c61e72d33b30185cdd
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1208 Commits

Author SHA1 Message Date
Balazs Gerofi
0eaa27291a thread: move clear_child_tid, etc. to main structure 2015-10-29 11:01:27 +09:00
NAKAMURA Gou
0b07dd1b79 support madvise(MADV_REMOVE) partially 
This MADV_REMOVE works with a mapping which is
- created with shmat() and
- not sharing memobj with other mappings.
 2015-10-28 18:41:28 +09:00
NAKAMURA Gou
c25f8c7a39 support settimeofday() 2015-10-27 19:21:50 +09:00
NAKAMURA Gou
153a59a6f4 gettimeofday: avoid per-cpu data in calculation 
Because it is difficult to safely update per-cpu data of other cpus in
settimeofday().
 2015-10-27 19:21:50 +09:00
Tomoki Shirasawa
343bfbd30a rename back status field 2015-10-22 20:26:50 +09:00
Tomoki Shirasawa
4e4f1208f7 delete unused member 2015-10-19 20:12:26 +09:00
Tomoki Shirasawa
a325a78866 refactoring to send signal 2015-10-15 17:10:02 +09:00
Tomoki Shirasawa
04e193de13 refactoring process structures 2015-10-13 23:04:08 +09:00
NAKAMURA Gou
cb4f3a4d65 take into account args/envs' offset in page 
- prepare_process_ranges_args_envs()
 2015-10-01 21:08:42 +09:00
NAKAMURA Gou
51789fcd38 initialize idle_vm for page faluts 2015-10-01 21:08:35 +09:00
NAKAMURA Gou
8dd9175411 schedule: fix null pointer dereference 2015-09-29 19:10:00 +09:00
NAKAMURA Gou
a14768c49a kmalloc: fix missing unlock on out-of-memory path 2015-09-18 21:26:15 +09:00
NAKAMURA Gou
56e57775e7 clone: fix error message 2015-09-18 21:26:15 +09:00
NAKAMURA Gou
b3b752ba41 nanosleep: use copy_from_user instead of direct access 2015-09-17 21:46:32 +09:00
NAKAMURA Gou
7b32f2f73b nanosleep: fix tscs_rem underflow issue 2015-09-17 21:46:26 +09:00
NAKAMURA Gou
ea5a1a8693 nanosleep: update *rem whenever signaled 2015-09-17 21:44:49 +09:00
NAKAMURA Gou
92f8fb2b2b nanosleep: use copy_to_user instead of direct access 2015-09-17 21:44:49 +09:00
NAKAMURA Gou
a3e440414d nanosleep: cosmetic change 2015-09-17 21:44:49 +09:00
Balazs Gerofi
ccb7c30a05 page_fault_handler(): reenable preempt after failed PF when process is exiting 2015-09-17 10:05:32 +09:00
NAKAMURA Gou
7dfeb8e7ce create demand-paging mapping in case of MAP_SHARED 
On current McKernel, only mappings for demand paging can be shared.
Therefore, if MAP_SHARED and MAP_ANONYMOUS are specified and
anon_on_demand is disabled, then mmap(2) should create a mapping which
is for demand paging and is entirely populated with physical pages.
 2015-09-16 21:38:00 +09:00
NAKAMURA Gou
bd5708286d make sys_gettimeofday() use copy_to_user() 2015-09-16 21:26:32 +09:00
NAKAMURA Gou
c8a13cf213 make gettimeofday ignore NULL parameter 2015-09-16 21:26:24 +09:00
NAKAMURA Gou
5ad0a03d18 make gettimeofday handle second parameter (timezone) 2015-09-16 21:25:29 +09:00
NAKAMURA Gou
3819eec03f cosmetic changes 
- sys_gettimeofday()
 2015-09-16 21:13:12 +09:00
Balazs Gerofi
40b8587a8a schedule(): sync CPU_FLAG_NEED_RESCHED flag with clone and migrate 2015-09-16 19:22:40 +09:00
Balazs Gerofi
e1a01803d0 disable demand paging on ANONYMOUS mappings unless anon_on_demand kernel argument is passed 2015-09-14 17:26:37 +09:00
Balazs Gerofi
69f4b0e1ad gettimeofday()/nanosleep(): check arguments, return on pending signal 2015-09-14 17:05:30 +09:00
Tomoki Shirasawa
0909a5bed5 tracee context is broken when tracee call execve 2015-09-03 10:05:25 +09:00
Tomoki Shirasawa
9dd224385e When SIGSEGV occurred on a tracee process, a tracee process freezes. 2015-09-01 17:37:56 +09:00
Balazs Gerofi
9ae5bcf46e gettimeofday(): an implementation based on CPU invariant TSC support 2015-08-24 23:53:56 +02:00
Balazs Gerofi
c85a9b99e1 a couple of cosmetic changes of debug messages 2015-08-22 18:53:14 +09:00
Tomoki Shirasawa
5a0cd3f53f ptrace_detach when exiting 
refs #590
 2015-08-18 18:03:09 +09:00
Balazs Gerofi
9fa62adfe7 execve(): stay compliant with locked context switching 2015-08-10 14:18:11 +09:00
Balazs Gerofi
f0ab8ec89a sched_request_migrate(): change CPU flags atomically 2015-08-10 12:45:59 +09:00
Balazs Gerofi
f4cc82578d check_need_resched(): no thread migration in IRQ context 2015-08-10 12:43:35 +09:00
Balazs Gerofi
9ba40dc0ff schedule(): hold runq lock for the entire duration of context switching 
releasing the runq lock after loading page tables but before the actual
context switch can leave execution in an inconsistent if the current
process is descheduled from an IRQ between these two steps.
this patch holds the runq lock with IRQs disabled and makes the context
switch a single atomic operation.
 2015-08-10 12:37:12 +09:00
Balazs Gerofi
8d6c97ea5c schedule(): disable auto thread migration 2015-08-07 16:07:31 +09:00
Balazs Gerofi
215cd370a1 ap_init(): clean up AP boot kernel messages 2015-08-07 10:57:59 +09:00
Balazs Gerofi
0a0e2c04a0 support for dynamically toggling time sharing when CPU is oversubscribed 2015-08-07 08:51:50 +09:00
Balazs Gerofi
aa191b87d3 schedule(): use XSAVE/XRSTOR and swap floating point registers in context switch 2015-08-07 08:41:00 +09:00
Balazs Gerofi
d5c243571f cpu_clear_and_set(): atomic CPU mask update in migration code 2015-08-06 10:49:55 +09:00
Balazs Gerofi
328e69a335 schedule(): do not preempt while holding spinlocks or while in offloaded syscall 2015-08-06 10:36:13 +09:00
Balazs Gerofi
b77755d0f7 obtain_clone_cpuid(): always start from CPU 0 and fill in cores linearily 2015-07-28 20:20:47 +09:00
Balazs Gerofi
d7bae14707 TEMPORARY: schedule(): move threads when core is explicitly oversubscribed 2015-07-28 20:12:58 +09:00
Balazs Gerofi
4e58d08f5c schedule_timeout(): give a chance to other process in spin sleep if CPU core is oversubscribed 2015-07-28 20:06:56 +09:00
Balazs Gerofi
9b1e691588 fix thread migration code (i.e., sched_setaffinity()) 
- moved migration code into idle() process and updated schedule() to detect
  when a thread has moved to another CPU in order to avoid doing housekeeping
  on behalf of the original one
- start CPU head from core 0
- keeps track of nested interrupts
 2015-07-24 20:09:17 +09:00
Balazs Gerofi
3988b0fc61 keep track of IRQ context and don't do thread migration there 2015-07-23 16:56:58 +09:00
Balazs Gerofi
54eb345847 settid(): prevent modifying tid after thread migration 2015-07-23 16:51:24 +09:00
Tomoki Shirasawa
bbe7aef95b fix calling do_signal (argument lacked) 2015-07-17 10:18:43 +09:00
Tomoki Shirasawa
1ff4cf68c2 support SA_RESTART flag and restart syscall 2015-07-16 16:33:14 +09:00