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92902d36fcc25396766eeb70e9e83ccb0045233d
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307 Commits

Author SHA1 Message Date
bgerofi@riken.jp
d4ba4dc8b3 introduction of mckernel_procfs_file_operations; fix /proc/self path resolution; 
implementation of /proc/self/pagemap (LTP mmap12)
 2014-12-15 12:46:05 +09:00
Balazs Gerofi bgerofi@riken.jp
c1cf630a94 mcexec: store full path to executable 
required so that a forked process can obtain exec reference in the
Linux kernel even if executable was specified with relative path
and fork was called after changing the current working directory
 2014-12-03 15:14:26 +09:00
Tomoki Shirasawa
8f30e16976 when mcexec is killed by SIGKILL, terminate mckernel process (BUG#259) 2014-11-27 16:13:52 +09:00
Masamichi Takagi
658b88fd7b Modify spacing 2014-10-15 14:40:47 +09:00
Masamichi Takagi
dbecaa2fc8 Add ptrace functions of job-control and signal 
Note that a forked process automatically becomes ptraced state in this
commit.
 2014-10-15 14:28:55 +09:00
bgerofi@riken.jp
43e6de8124 fork()/execve()/ETXTBSY: sync parent a child duing fork() to make sure child holds a reference to the executable in the host kernel using open_exec() 2014-09-25 15:14:18 +09:00
Tomoki Shirasawa
39f36120c1 support sigqueue 2014-09-23 23:17:53 +09:00
bgerofi@riken.jp
55aeceb1bf execve()/creat(): handle NULL env correctly and support for holding executable file so that write access returns ETXTBSY 2014-09-18 21:25:04 +09:00
NAKAMURA Gou
7a5764bda4 Revert "mcexec のデバッグ出力を改善" 
This reverts commit fb38917bf6.
 2014-09-17 19:59:10 +09:00
NAKAMURA Gou
fb38917bf6 mcexec のデバッグ出力を改善 2014-09-17 19:46:55 +09:00
Balazs Gerofi bgerofi@riken.jp
e2dc359ba7 execve(): iterate and close fds with FD_CLOEXEC, resolves LTP fcntl07_64 2014-09-17 15:32:53 +09:00
Balazs Gerofi bgerofi@riken.jp
ac40b96c24 execve(): support for ETXTBSY via a new ioctl() call to test in kernel space with open_exec() 2014-09-10 14:09:11 +09:00
Naoki Hamada
efc817de92 Merge branch 'master' of postpeta.pccluster.org:mckernel 2014-09-05 17:20:50 +09:00
Balazs Gerofi bgerofi@riken.jp
15c9ae4c8d execve(): lookup_exec_path() support for symlinks based on COKERNEL_EXEC_ROOT 2014-09-04 18:11:41 +09:00
Naoki Hamada
c939a372b0 Added mcexec hack. 2014-09-04 16:44:30 +09:00
Balazs Gerofi bgerofi@riken.jp
cd366de097 execve(): 
- COKERNEL_PATH and COKERNEL_EXEC_ROOT support for co-kernels with different architecture than the host (i.e., Xeon Phi).
- fix various error codes: ENAMETOOLONG, ENOENT, ENOTDIR, EACCES, ENOEXEC, EFAULT.
- support for shell code execution.
 2014-09-03 18:15:43 +09:00
NAKAMURA Gou
d0b6aa1047 Merge branch 'bug201.get_user_pages' 2014-09-03 11:24:22 +09:00
NAKAMURA Gou
f2e0e42ba4 mcexec: report proper error when __NR_munmap fails 2014-09-02 15:43:08 +09:00
Tomoki Shirasawa
34854d3c93 ltp times03 2014-09-01 14:27:31 +09:00
Tomoki Shirasawa
f535670100 fix pipe02 2014-08-27 16:50:01 +09:00
Tomoki Shirasawa
78d10cce80 support process group 2014-08-18 17:08:28 +09:00
Tomoki Shirasawa
663c121308 interrupt syscall sufficient threads 2014-08-18 16:49:49 +09:00
Tomoki Shirasawa
23ab6032ba don't close /dev/mcos 2014-08-18 16:25:24 +09:00
NAKAMURA Gou
8c1c8a40d1 use madvise() when zap_vma_ptes() fails 2014-08-07 17:53:26 +09:00
Balazs Gerofi bgerofi@riken.jp
9fda245490 execve(): return correct error value when failure (errno) 2014-08-07 14:35:15 +09:00
Naoki Hamada
3fa6818962 Merge from master. 2014-07-31 18:30:39 +09:00
Balazs Gerofi bgerofi@riken.jp
27bfe37b80 execve(): fix looking up relative path and checking executable permission 2014-07-29 15:48:14 +09:00
bgerofi@riken.jp
f1e39f5fb2 execve(): find executable first in COKERNEL_PATH and then in PATH if executable name is not absolute 2014-07-29 11:14:09 +09:00
Tomoki Shirasawa
e5d3407d8e child mcexec don't print signal terminate message 2014-07-29 11:10:11 +09:00
Balazs Gerofi bgerofi@riken.jp
c83e80ad91 execve(): clear host user-space PTEs before context switching 2014-07-28 18:57:56 +09:00
Tomoki Shirasawa
2f4f3628f9 support tgkill 2014-06-10 10:42:29 +09:00
Balazs Gerofi bgerofi@riken.jp
2331309d2f mcexec: use optind instead of shifting argv[] for arguments passing to remote app 2014-05-27 17:52:56 +09:00
Balazs Gerofi bgerofi@riken.jp
514d75b685 execve(): supporting syscall and mcexec modifications 2014-05-22 17:39:13 +09:00
Balazs Gerofi bgerofi@riken.jp
badb450153 more detailed report in memory management error path 2014-05-22 17:27:39 +09:00
Balazs Gerofi bgerofi@riken.jp
6a8e75dda0 fix argc bug 2014-05-22 17:11:10 +09:00
Balazs Gerofi bgerofi@riken.jp
6ca8b77cf2 fix argv/argc bug 2014-05-22 16:39:07 +09:00
Balazs Gerofi bgerofi@riken.jp
84c18ef38e MCEXEC_UP_TRANSFER: generalize MCEXEC_UP_LOAD_IMAGE ioctl() to allow transfer in both directions 2014-05-22 12:42:23 +09:00
Balazs Gerofi bgerofi@riken.jp
f810aa56b8 refactoring mcexec's main() in preparation for execve() 2014-05-21 21:55:49 +09:00
Balazs Gerofi bgerofi@riken.jp
a5b8d388e9 dprintf exit status 2014-05-12 10:30:39 +09:00
Tomoki Shirasawa
cc8317643e SIGPIPE fix (ltp writev) 2014-04-25 08:43:08 +09:00
Balazs Gerofi bgerofi@riken.jp
0e348e6295 SIGCHLD and wait4(), i.e. wait()/waitpid() implementation 2014-04-23 13:33:18 +09:00
NAKAMURA Gou
39a86fad18 support execute disabled stack 2014-04-11 14:59:47 +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
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
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
51f75d9ba8 mcexec: options for target CPU core ID where application is executed 2014-03-27 14:58:26 +09:00
Tomoki Shirasawa
74339586d5 change dma_buf size 256MB -> 4kB 2014-02-07 10:57:50 +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
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