Subversion Repositories HelenOS

Rev

Show changed files | Details | Compare with Previous | Blame | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
4691 5972 d 4 h svoboda /branches/dynload/ Merge trunk changes up to r4686.  
3403 6311 d 12 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3150 6401 d 9 h svoboda /branches/dynload/ Merge trunk changes up to r3090 into dynload (still broken)  
3001 6423 d 7 h svoboda /branches/dynload/kernel/generic/ Kernel support for running programs from userspace.  
2984 6426 d 9 h svoboda /branches/dynload/ Add as_area_change_flags() syscall and libc wrapper. Implementation limited to non-shared areas of anonymous memory.  
2927 6433 d 12 h decky /branches/dynload/ added dynload branch  
2745 6511 d 10 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2556 6662 d 11 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2183 6839 d 6 h jermar /trunk/kernel/generic/ Continue to de-oversynchronize the kernel.
- replace as->refcount with an atomic counter; accesses to this
reference counter are not to be done when the as->lock mutex is held;
this gets us rid of mutex_lock_active();

Remove the possibility of a deadlock between TLB shootdown and asidlock.
- get rid of mutex_lock_active() on as->lock
- when locking the asidlock spinlock, always do it conditionally and with
preemption disabled; in the unsuccessful case, enable interrupts and try again
- there should be no deadlock between TLB shootdown and the as->lock mutexes
- PLEASE REVIEW !!!

Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops.		  
2170 6844 d 0 h jermar /trunk/kernel/ Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.

Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary.		  
2142 6847 d 7 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6891 d 23 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6892 d 2 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2107 6900 d 1 h jermar /trunk/ When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.

Formating and indentation fixes.		  
2106 6900 d 9 h jermar /trunk/kernel/ Merge as_t structure into one and leave the differring parts in as_genarch_t.

Indentation and formatting changes in header files.		  
2094 6905 d 5 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6905 d 5 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6906 d 9 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 6917 d 2 h jermar /trunk/ (c) versus (C)  
2015 6956 d 2 h jermar /trunk/ Rework support for virtually indexed cache.
Instead of repeatedly flushing the data cache, which was a huge overkill, refuse to create an illegal address alias
in the kernel (again) and allocate appropriate page color in userspace instead. Extend the detection also to
SYS_PHYSMEM_MAP syscall.

Add support for tracking physical memory areas mappable by SYS_PHYSMEM_MAP.

Lots of coding style changes.		  

←Prev12Next→

Show All