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23 Commits

Author SHA1 Message Date
Masamichi Takagi
5cb8a1f10f uti: Workaround not to share CPU with OpenMP threads 
* Assign uti thread to the last idle CPU so that it's not shared with
  an OpenMP thread

Change-Id: Ia42cae056ce81fde9b6dab6286b39a52f3c9e172
 2018-09-04 19:53:01 +09:00
Masamichi Takagi
0b0b7b03d7 Prevent one CPU from getting chosen by concurrent forks 
One CPU could be chosen by concurrent forks because CPU selection and
runq addition are not done atomicly. So this fix makes the two steps
atomic.

Change-Id: Ib6b75ad655789385d13207e0a47fa4717dec854a
 2018-09-04 19:51:11 +09:00
Ken Sato
f57b0c5d4f wait: Delay wake-up parent within switch context 
Fujitsu: POSTK_DEBUG_TEMP_FIX_41
Refs: #1006
Change-Id: Ia98e896505ad0f6549766604ade84550eee8bd2d
 2018-08-30 02:13:51 +00:00
Dominique Martinet
3185334c1c debug messages: implement dynamic debug 
Heavily inspired off linux kernel's dynamic debug:
 * add a /sys/kernel/debug/dynamic_debug/control file
 (accessible from linux side in /sys/class/mcos/mcos0/sys/kernel/debug/dynamic_debug/control)
 * read from file to list debug statements (currently limited to 4k in size)
 * write to file with '[file foo ][func bar ][line [x][-[y]]] [+-]p' to change values

Side effects:
 * reindented all linker scripts, there is a new __verbose section
 * added string function strpbrk

Change-Id: I36d7707274dcc3ecaf200075a31a2f0f76021059
 2018-07-26 14:16:31 +09:00
Dominique Martinet
97273adcc5 x86_64 move_pages_smp_handler: rework initialisation 
- add missing break statement
- remove duplicate memset for mpsr->status

Change-Id: I1fd1a8b2bb7bbabb32db9e7d3fc84102d9b0ff82
 2018-07-26 04:59:23 +00:00
Dominique Martinet
eb675818c7 x86 mmap: fix out of bounds shift 
0x3F << MAP_HUGE_SHIFT is too big to fit in signed int,
make it unsigned

Change-Id: I0e476b80ff51a8e141c90da6f985ba18a3438752
 2018-07-26 03:50:44 +00:00
Dominique Martinet
9a79920ef9 Static analysis fixes 
Change-Id: I7bc42545a1c497f704d7bfa6ea1b7e3893acc697
 2018-07-26 03:36:50 +00:00
Ken Sato
11756d96ef mmap, mremap: Check arguments in the same order as in Linux 
Refs: #1137
Change-Id: I4fd2ac83b013a2741a3facce4dd7e0c37b14fd25
 2018-07-03 08:41:30 +00:00
Ken Sato
ce3af4734a fix: dual hold_thread() in do_kill() 2018-03-19 11:12:50 +09:00
Masamichi Takagi
65667709a8 Fix thread status race-condition caused by hold_thread() in do_kill() and terminate() 
Conflicts:
	arch/x86_64/kernel/syscall.c
	kernel/syscall.c
 2018-03-09 17:53:17 +09:00
Masamichi Takagi
3b277b2354 uti: Fix dead-lock of calling terminate() from terminate() 
Conflicts:
	arch/x86_64/kernel/syscall.c
	kernel/syscall.c
 2018-03-09 17:38:55 +09:00
Ken Sato
140f813d77 fix: differences in behavior of sigaction between Linux and Mckernel 2018-03-01 09:44:44 +09:00
Ken Sato
523a066245 sigaction: support for SA_RESETHAND on x86_64 
refs #1031
 2018-02-22 11:55:32 +09:00
Tomoki Shirasawa
559fc9746c signal: check_signal must be called after check_need_resched. 2018-01-28 13:38:51 +09:00
Balazs Gerofi
86efc86945 save_syscall_return_value(): separate from check_signal() and call from syscall() (for ARM64) 2018-01-26 14:43:18 +09:00
Tomoki Shirasawa
f55f01cc11 signal: If the thread receiving the signal is not current, the signal is not processed. 2018-01-25 22:27:34 +09:00
Tomoki Shirasawa
1fa398cfab do_kill: fix to initialization leakage 2018-01-24 23:11:18 +09:00
Tomoki Shirasawa
4bb65494e9 signal: When the process receives a termination signal, it first terminates mcexec. 
refs #863
refs #870
 2018-01-23 14:40:38 +09:00
Tomoki Shirasawa
2f2b3cdc6f signal: interrupt_syscall is called by the core executing the thread that recieved the signal. 
refs #999
 2018-01-23 14:31:04 +09:00
Tomoki Shirasawa
d209c00a30 part of Issue#994 
mcexec: open syscall moves to arch_dep
do_fork: don't use __NR_fork. use __NR_clone
vfork: moves to arch_dep
 2017-12-26 10:30:33 +09:00
Masamichi Takagi
9a5d5feb9c time(): Split into architecture dependent functions 
This fixes the bug reported as POSTK_ARCH_DEP_13 and POSTK_DEBUG_ARCH_DEP_13.
 2017-12-23 11:36:52 +09:00
Hitoshi Iizuka
08a625cc0d modify:User space memory access 
perf_event_open,futex,process_vm_readv,process_vm_writev,move_pages
 2017-10-23 20:27:56 +09:00
Balazs Gerofi
43ecf06e83 arch: x86 -> x86_64 and build system changes 2017-10-18 09:20:52 +09:00