9057268f0e
add memobj's default action
2014-07-07 18:11:38 +09:00
9efb5e4fc5
add memobj_has_pager()
2014-07-07 18:11:36 +09:00
d59628e131
fix debug prints to avoid NULL dereferences
2014-07-07 18:11:34 +09:00
a8a226a443
use PF_POPULATE for resolving delegated page faults
...
Since a host side PTE does not follow McKernel's copying a COW page,
COW pages cannot be used for resolving delegated page faults.
Therefore, to copy pages eagerly, PF_POPULATE should be used.
2014-07-07 18:11:31 +09:00
b2ca24d013
remap_file_pages: reject special ranges
...
special ranges are:
- VR_REMOTE
- VR_IO_NOCACHE
- VR_RESERVED
2014-07-02 15:30:54 +09:00
11bb334bd4
support mremap(2)
...
fixes #22
2014-07-02 15:30:52 +09:00
90aaf9dc9c
support remap_file_pages(2)
...
fixes #21
2014-06-30 17:33:51 +09:00
bb3756dc74
add fileoff-type PTE
...
fileoff-type PTE holds a file offset which the page data should be
loaded from.
refs #21
2014-06-30 17:33:50 +09:00
04f1b3f401
add pte_xchg()
2014-06-30 17:33:46 +09:00
c395dc2410
add pte_is_dirty()
2014-06-30 17:33:45 +09:00
d2e29bf598
add visit_pte_range()
...
refs #21
refs #22
2014-06-30 17:33:43 +09:00
dc7f38c8c7
Merge branch 'master' of postpeta.pccluster.org:mckernel
2014-06-25 13:45:46 +09:00
770eae0186
support sigaltstack
2014-06-25 13:45:33 +09:00
a9bebf1e14
Make idle loop not miss a chance to schedule
...
Prevents the case where McKernel misses one chance to schedule a
task when an interrupt occurs just after enabling interrupt and
just before executing "halt" in the idle loop (in kernel/process.c).
refs #45
2014-06-12 11:22:02 +09:00
bbb7f77706
interrupt syscall of signal recieved process
2014-06-11 21:06:52 +09:00
19fc50ee05
Merge branch 'master' of postpeta.pccluster.org:mckernel
2014-06-10 10:42:55 +09:00
2f4f3628f9
support tgkill
2014-06-10 10:42:29 +09:00
3f13862a98
ptrace: add error stub to prevent mcexec from waiting
...
In LTP's ptrace03 test,
there is a exit() preceded by ptrace(PTRACE_TRACEME).
In this case, processes will be usually finished immediately.
But mcexec will fall into waiting for parent's ptrace(PTRACE_CONT),
because mcexec sends itself a signal in processing of exit().
2014-06-09 19:03:59 +09:00
2331309d2f
mcexec: use optind instead of shifting argv[] for arguments passing to remote app
2014-05-27 17:52:56 +09:00
4f32042c5f
getrlimit: delegate inquiries about fs resource
...
This commit corrects following system/library calls.
* getdtablesize()
* getrlimit(RLIMIT_FSIZE/RLIMIT_LOCKS/RLIMIT_NOFILE)
* sysconf(_SC_OPEN_MAX)
* ulimit(UL_GETFSIZE)
refs #31
refs #32
2014-05-26 16:47:56 +09:00
514d75b685
execve(): supporting syscall and mcexec modifications
2014-05-22 17:39:13 +09:00
badb450153
more detailed report in memory management error path
2014-05-22 17:27:39 +09:00
6a8e75dda0
fix argc bug
2014-05-22 17:11:10 +09:00
6ca8b77cf2
fix argv/argc bug
2014-05-22 16:39:07 +09:00
a4e6269c5d
adjust prepare_process_ranges_args_envs() so that it can initialize arguments and environmnt variables from kernel space strings
2014-05-22 13:45:23 +09:00
760c9ebdb0
refactor process_msg_prepare_process() in preparation for execve()
2014-05-22 13:27:25 +09:00
84c18ef38e
MCEXEC_UP_TRANSFER: generalize MCEXEC_UP_LOAD_IMAGE ioctl() to allow transfer in both directions
2014-05-22 12:42:23 +09:00
f810aa56b8
refactoring mcexec's main() in preparation for execve()
2014-05-21 21:55:49 +09:00
f90e294384
flatten_strings() kernel space version
2014-05-21 14:13:46 +09:00
2fead93f10
negative error code for ECHILD
2014-05-19 13:04:09 +09:00
22d9d6d3a6
use dprintk() for per process data structure debug messages
2014-05-19 12:49:36 +09:00
81a78be20a
clean up per process structure in exit_group() and fix wait4() on self bug
2014-05-19 12:49:36 +09:00
3e830521c1
move rt_sigaction to device dependent
...
fix call kill(getpid(), ) after sigaction aborted
2014-05-16 09:50:06 +09:00
ac65e6c869
wait4(): support for ECHILD error check
2014-05-13 10:28:27 +09:00
426c67861c
introduction of mcctrl_per_process data to keep track remote page tables on a per-process basis
2014-05-13 00:22:56 +09:00
a5b8d388e9
dprintf exit status
2014-05-12 10:30:39 +09:00
39b336ca2f
wait4(): save exit status only if requested
2014-05-12 10:29:58 +09:00
e5aad641ac
delete old page fault handlers
2014-05-07 22:10:21 +09:00
71d1359d53
merge two page fault functions
...
fixes #18
2014-05-07 21:24:45 +09:00
99dec9b805
add parameters to arch_vrflag_to_ptattr()
...
for other architectures and future use
refs #18
2014-05-07 21:24:45 +09:00
769cf79bf8
move vrflag_to_ptattr() to arch/x86/kernel/memory.c
...
refs #18
2014-05-07 21:24:45 +09:00
8097b057da
add page_is_in_memobj() and page_is_multi_mapped()
...
These are page test functions.
2014-05-07 21:24:45 +09:00
7e788f06f7
add PTATTR_DIRTY
...
refs #18
2014-05-07 21:24:45 +09:00
ce7af5839d
keep page.count valid through its life cycle
2014-05-07 21:24:45 +09:00
29c7d40005
use atomic operations for manipulating page.count
2014-05-07 21:24:45 +09:00
604d1da50f
change macro name: PF_DONTCOW --> PF_POPULATE
...
refs #18
2014-04-25 11:19:21 +09:00
cc8317643e
SIGPIPE fix (ltp writev)
2014-04-25 08:43:08 +09:00
c15c2a2024
fix process refcount so that process structure is still valid when final release() is called in schedule()
2014-04-24 17:09:14 +09:00
0e348e6295
SIGCHLD and wait4(), i.e. wait()/waitpid() implementation
2014-04-23 13:33:18 +09:00
7103fed1dc
rename free_process() ro release_process()
2014-04-23 13:31:15 +09:00
