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Author SHA1 Message Date
Balazs Gerofi bgerofi@riken.jp
2a9bd2efb1 fix clean-up path in create_process() 2014-04-21 19:55:43 +09:00
Balazs Gerofi bgerofi@riken.jp
d6c0ea7627 assign the same TID and PID to the new process after fork() 2014-04-15 20:40:40 +09:00
Balazs Gerofi bgerofi@riken.jp
0285c99c9c use PT_PHYSMASK on last level PTE entries to avoid returning invalid physical address 2014-04-15 20:21:07 +09:00
Tomoki Shirasawa
d090e3f28d Merge branch 'master' of postpeta.pccluster.org:mckernel 2014-04-13 14:13:46 +09:00
Balazs Gerofi bgerofi@riken.jp
40fdb8865b Merge branch 'master' of postpeta.pccluster.org:mckernel 2014-04-11 15:41:25 +09:00
Balazs Gerofi bgerofi@riken.jp
b93db2411c check CLONE_VM in clone_flags for determining whether clone()/fork() is requested 2014-04-11 15:41:17 +09:00
NAKAMURA Gou
56f0d3b29f support IA-32e's "execute disable bit" 2014-04-11 14:59:47 +09:00
NAKAMURA Gou
39a86fad18 support execute disabled stack 2014-04-11 14:59:47 +09:00
NAKAMURA Gou
b31a1b6db2 add PTATTR_NO_EXECUTE 2014-04-11 14:59:47 +09:00
NAKAMURA Gou
f60b37ea1b use 'enum ihk_mc_pt_attribute' instead of 'int' 2014-04-11 14:59:46 +09:00
NAKAMURA Gou
55817e9e83 use "struct x86_regs *" to access stack frames 
The intention of this fix is to cope with a recent change of
PUSH_ALL_REGS.
 2014-04-03 15:33:35 +09:00
NAKAMURA Gou
c0c9192e1b add prototypes to cpulocal.h 
+struct x86_cpu_local_variables *get_x86_this_cpu_local(void);
+void *get_x86_this_cpu_kstack(void);
 2014-04-03 15:33:34 +09:00
NAKAMURA Gou
7eeafb0d85 change parameter types of arch-regs to "void *" 2014-04-03 15:33:34 +09:00
NAKAMURA Gou
da81cd2d1d mcexec: copy a pathname string of open(2) safely 
When a open system call request is delegated, mcexec will check whether
a path name is known one such as "/proc/meminfo" and "/proc/cpuinfo".
During this check, if mcexec causes a SIGSEGV or SIGBUS signal,
mcexec will begin a loop, because mcexec has a signal handler which
returns simply.
 2014-04-03 15:27:49 +09:00
Balazs Gerofi bgerofi@riken.jp
583c9355cd fix argument of set_tid_address() 2014-04-02 18:02:04 +09:00
Balazs Gerofi bgerofi@riken.jp
ab13f9a57c declare fork() so that __NR_fork is available 2014-04-02 18:00:09 +09:00
Balazs Gerofi bgerofi@riken.jp
cf442e6a14 fork(): preliminary version (no wait()/waitpid() support yet) 2014-04-02 14:07:38 +09:00
Balazs Gerofi bgerofi@riken.jp
391b69e8c4 refactor mcexec's main and separate signal and syscall thread initialization 2014-04-02 14:04:55 +09:00
Balazs Gerofi bgerofi@riken.jp
3ce94072b4 save/restore rbp when entering/leaving kernel (required for fork() in glibc) 2014-04-02 14:02:20 +09:00
Tomoki Shirasawa
dabca28e4b Merge branch 'master' of postpeta.pccluster.org:mckernel 2014-03-30 16:14:43 +09:00
Tomoki Shirasawa
e112aa8b06 remove DMA call 2014-03-30 16:14:19 +09:00
Balazs Gerofi bgerofi@riken.jp
b01b31f04d use GFP_ATOMIC in interrupt context 2014-03-28 18:43:34 +09:00
Balazs Gerofi bgerofi@riken.jp
ccd770ba24 use per-process wait queues for system call request processing in mcexec so that multiple processes can share the per-core system call channels 2014-03-27 19:31:42 +09:00
Balazs Gerofi bgerofi@riken.jp
11ddbcf3c8 wait only 10 secs in mcreboot-attached 2014-03-27 15:35:42 +09:00
Balazs Gerofi bgerofi@riken.jp
a2515747cf print CPU core ID in debug messages 2014-03-27 15:32:23 +09:00
Balazs Gerofi bgerofi@riken.jp
51f75d9ba8 mcexec: options for target CPU core ID where application is executed 2014-03-27 14:58:26 +09:00
Tomoki Shirasawa
76089e2682 add AT_PAGESZ to auxvec 2014-02-26 10:31:44 +09:00
Tomoki Shirasawa
74339586d5 change dma_buf size 256MB -> 4kB 2014-02-07 10:57:50 +09:00
NAKAMURA Gou
dca831b94f add error check codes for madvise() 
The advice will be ignored even if this madvise() succeed.
 2014-02-05 11:31:03 +09:00
NAKAMURA Gou
b2b9b566c8 implement munlock() 2014-02-05 11:31:01 +09:00
NAKAMURA Gou
f2a6515448 implement mlock() 2014-02-05 11:30:59 +09:00
NAKAMURA Gou
fcbaa9726c correct the syscall return type 
Long size syscall return values such as shmat()'s and lseek()'s are
broken, because lower 32 bits are only returned.
 2014-02-05 11:30:57 +09:00
NAKAMURA Gou
93c5385f65 implement mmap(MAP_LOCKED) 2014-01-27 18:59:36 +09:00
NAKAMURA Gou
f0a52d4519 implement mmap(MAP_POPULATE) 
populate_process_memory() function is not efficient,
because whether every small page is present is checked.
 2014-01-27 18:50:38 +09:00
NAKAMURA Gou
bdc945cb34 mcexec: wait for the signal to be received 
The mcexec may send a signal to itself in order that the mcexec
terminates abnormally.
Generally, the signal is delivered to the thread which sent the signal.
In this case, the signal terminates the mcexec immediately.

However, if the signal is delivered to another thread,
the thread which sent the signal can call exit(3)
before the signal terminates the mcexec.
 2014-01-24 20:22:54 +09:00
NAKAMURA Gou
069bb10a02 make mcexec ignore garbage request 
When a signal is forwarded from McKernel,
ioctl(MCEXEC_UP_WAIT_SYSCALL) may return EINTR error.
In this case, though no syscall request has been received,
the mcexec starts to process the syscall requst that is garbage.
 2014-01-24 20:20:45 +09:00
NAKAMURA Gou
f5b4057074 add vsyscall 
- getcpu() is not implemented. It will cause SIGILL.
- gettimeofday() and time() are implemented with syscall.
 2014-01-24 20:18:36 +09:00
Tomoki Shirasawa
26d68d391d signal part 4 (sigsuspend etc) 2014-01-24 10:14:49 +09:00
NAKAMURA Gou
c421965542 relocate a program interpreter to the map_start 
This commit makes a system call that dereferences a NULL pointer fail.
 2014-01-14 18:55:16 +09:00
NAKAMURA Gou
6992b829a0 delegate the open(2) with the generic forwarding. 
This commit solves a problem that causes getpwnam()/getpwuid() to return
NULL.
 2014-01-14 18:50:20 +09:00
NAKAMURA Gou
afc38718a0 add MCEXEC_UP_STRNCPY_FROM_USER 
It allows a mcexec to execute the strncpy_from_user().
 2014-01-14 18:50:19 +09:00
NAKAMURA Gou
e86ffb0b57 do write back only MAP_SHARED pages 
Fix a problem that cause write reference to a MAP_PRIVATE mapping to
change the underlying file.
 2014-01-14 18:48:43 +09:00
Tomoki Shirasawa
8411f353fe signal part 3 (EFAULT) 2014-01-13 10:52:29 +09:00
Tomoki Shirasawa
2a55f3d718 install manual 2014-01-08 17:13:49 +09:00
Tomoki Shirasawa
0465cc16b9 signal (part 2) sigpending 2014-01-07 19:52:06 +09:00
Tomoki Shirasawa
a8c249ddaf signal (part 1) 2014-01-07 11:57:57 +09:00
Tomoki Shirasawa
9e00275120 fork & execve return EOPNOTSUPP (temporary hack) 2013-12-18 16:10:13 +09:00
Tomoki Shirasawa
9926d469d8 remove debug print 2013-12-18 15:33:37 +09:00
Tomoki Shirasawa
96576aaee7 fix general protection fault caused by SIGALARM 2013-12-16 13:45:45 +09:00
Tomoki Shirasawa
8e4cbfeea1 print exit code or signal, if stderr is a tty 2013-12-10 14:45:37 +09:00