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a5c3e488437e9806b133c35746cf0bb6def8eabc
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547 Commits

Author SHA1 Message Date
Balazs Gerofi
a5c3e48843 search_free_space(): manage region->map_end internally 
Change-Id: If9176773868c44fa1eb801c0815c35cea9f4b54b
 2018-07-26 04:43:05 +00:00
Dominique Martinet
9a79920ef9 Static analysis fixes 
Change-Id: I7bc42545a1c497f704d7bfa6ea1b7e3893acc697
 2018-07-26 03:36:50 +00:00
Tomoki Shirasawa
67ebcca74d Fix to VMAP virtual address leak 
Fujitsu: POSTK_DEBUG_TEMP_FIX_51
Refs: #1024
Change-Id: I1692ee4f004cb4d1f725baf47a8ed31fce1bf42a
 2018-07-26 02:17:55 +00:00
Ken Sato
94e96927a6 mremap: Do nothing when no size change and !MREMAP_FIXED 
Behave in the same way as Linux which returns old_address when
old_size == new_size && !MREMAP_FIXED.

Refs: #1112
Change-Id: Ice1421a8a77f962d087de8475aa2cd40c59be5f7
 2018-07-26 01:49:01 +00:00
Ken Sato
3636c8e7e4 setrlimit: Check arguments in the same order as in Linux 
(1) Check if rlim's address is valid
(2) Check if soft-limit does not exceed hard-limit

Fujitsu: POSTK_DEBUG_TEMP_FIX_3
Refs: #1050
Change-Id: I5bf1008ce172f9dff64ec89b1f97614926abaf13
 2018-07-26 01:48:05 +00:00
Tomoki Shirasawa
9bb8076dc0 shmget: Make shmobj underwent IPC_RMID invisible to shmget 
Refs: #926
Change-Id: I16120623b581da5d5d484fd05d5111788c8ad5e2
 2018-07-10 02:13:00 +00:00
Tomoki Shirasawa
1cbe389879 do_fork: Propagate error code returned by mcexec 
Refs: #731
Change-Id: I7eb52c1c76103d65d108b18b7beaf8041b51cd03
 2018-07-03 09:19:54 +00:00
Ken Sato
db732a245c execve: Reinitialize vm_regions's map area on execve 
Reinitialize vm->region.map_end in sys_execve()
in the same way as when creating a new process.

Change-Id: I7fc048a187e619ba4b5a578976e2a6774d13a6a7
 2018-07-03 08:58:50 +00:00
Ken Sato
521bdc6181 mremap: Fix type of size arguments (from ssize_t to size_t) 
Refs: #1112
Change-Id: I3987d3a20a1e7c4b60f3880e91a670bc0bdc240f
 2018-07-03 08:54:14 +00:00
Ken Sato
e7b6a3472b sched_getaffinity: Check arguments in the same order as in Linux 
(1) Check if size is large enough
(2) Check if size is positive

Fujitsu: POSTK_DEBUG_TEMP_FIX_5
Refs: #1121
Change-Id: I3e41720c89ef89294820f7f4fa8df1a69a7011b0
 2018-07-03 08:53:30 +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
Dominique Martinet
ec202a1ca9 execve: fix execve with oversubscribing 
Issue: #1072
Change-Id: I88446e075b60de3c94cad2a19a4731e58037ea63
 2018-07-02 13:31:23 +09:00
Dominique Martinet
d4471df94e execve: use thread variable instead of cpu_local_var(current) 
This fixes crashes _without_ oversubscribing with a process doing
fork() execve() / wait() in a loop

Issue: #1132
Change-Id: I98531f4643ad6b6a8f750a1a3f05b9ff3ebfd50f
 2018-07-02 04:28:23 +00:00
Ken Sato
90dba00742 fix return value of sched_getaffinity (POSTK_DEBUG_TEMP_FIX_58) refs#1122 
Change-Id: I3d7b9b74eec268dd49b703600ca56df1d2933bd9
 2018-06-21 09:15:22 +09:00
Dominique Martinet
c52f7a5b49 syscall wait4: add _WALL (POSTK_DEBUG_ARCH_DEP_44) 
Needed by strace -f
 2018-05-11 09:22:54 +09:00
Balazs Gerofi
a7f645f7df terminate(): fix update_lock and threads_lock order to avoid deadlock 2018-03-25 08:29:53 +09:00
Masamichi Takagi
7bef1f5117 Remove debug-print from do_syscall() 2018-03-12 02:07:12 +09:00
Masamichi Takagi
fe42481d6f Add allow_oversubscribe kernel argument 
It's not allowed in the default setting.
Execute mcreboot.sh with -O option to allow it.

refs #1072
 2018-03-10 13:08:38 +09:00
Masamichi Takagi
8c2e20c3aa uti: Fix uti thread on the McKernel side blocks others in do_syscall() 
It could block other threads on the same CPU in do_syscall() since it busy-waits after woken up
because it's not allowed to sleep again.
 2018-03-09 18:02:45 +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
Ken Sato
b7a7281195 fix: Bug for getrusage often return incorrect ru_stime 
refs #1034
 2018-03-07 13:11:37 +09:00
Ken Sato
b77732fb4f fix: Bug for getrusage(RUSAGE_CHILDREN) return parent info (POSTK_DEBUG_TEMP_FIX_72) 
refs #1033
 2018-03-07 13:10:45 +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
7ad6f9595c fix: bug for ptrace_attach self pid 2018-03-01 09:37:12 +09:00
Ken Sato
f46287a711 ptrace: support for attaching child_process to parent 
refs #885
 2018-02-22 09:47:59 +09:00
Tomoki Shirasawa
c9157f273f do_fork: If mcexec succeeds for fork and McKernel fails fork, the child process of mcexec will remain. 2018-02-14 16:37:38 +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
Balazs Gerofi
ebaafa95d8 settid(): clear syscal offload request before populating 2018-01-26 13:54:34 +09:00
Balazs Gerofi
b8ee144e67 do_fork(): return -ENOMEM when no more TIDs available 2018-01-26 13:53:05 +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
0fa88f513f fix broken files 2017-12-27 15:28:13 +09:00
Tomoki Shirasawa
cd54c5983a fix openat 2017-12-27 14:59:13 +09:00
Ken Sato
6084faeecd make McKernel's execve behave same as Linux when argv or envp is set to NULL (fix for TEMP_FIX_21) 2017-12-26 17:43:17 +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
Katsuya Horigome
d649d6fc2d Include mbind support (this is a rebase commit to merge into development) 2017-11-27 11:16:53 +09:00
Tomoki Shirasawa
d273a2f58b add strace bundled test cases 2017-11-22 10:52:30 +09:00
Ken Sato
43230eb623 fix: checking the return code of fork() in Linux. 
refs #906
 2017-11-15 15:46:47 +09:00
Ken Sato
f18dc8428d fix: error code of perf_event_open, when unsupported event is specified. 
refs #1030
 2017-11-15 12:49:56 +09:00
Tomoki Shirasawa
ab53c8e0a4 execve: fix memory leak 
refs #727
 2017-11-09 16:44:31 +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
Ken Sato
12840601e1 support PERF_TYPE_{HARDWARE|HW_CACHE} in perf_event_open 
refs #829
 2017-10-20 23:10:20 +09:00
Masamichi Takagi
2ddc52e1a4 setitimer(): Fix error handling of copy_from_user() 
This fixes POSTK_TEMP_FIX_40 (POSTK_DEBUG_TEMP_FIX_40)
 2017-10-13 04:59:50 +09:00
Tomoki Shirasawa
9763c40f64 set_robust_list: returns 0 
refs #977
 2017-10-16 09:54:23 +09:00
Dominique Martinet
196379854b Fix a few more harmless compiler warnings: 
- myfree in pager.c was called with an argument, so add one to the
dummy definition
- pgoff is offset_t (unsigned) and doesn't need to be compared to 0
- clang says '*(int *)0 = 0' will be optimized away instead of keeping
the segfault without a volatile hint (?! that is wrong!), but it causes
no harm to add anyway.
 2017-10-13 10:02:11 +09:00
Dominique Martinet
4d4279121b process/vm; replace vm_range list by a rbtree 
This replaces the chained list used to keep track of all memory ranges
of a process by a standard rbtree (no need of interval tree here
because there is no overlap)

Accesses that were done directly through vm_range_list before were
replaced by lookup_process_memory_range, even full list scan (e.g.
coredump).
The full scans will thus be less efficient because calls to rb_next()
will not be inlined, but these are rarer calls that can probably afford
this compared to code simplicity.

The only reference to the actual backing structure left outside of
process.c is a call to rb_erase in xpmem_free_process_memory_range.

v2: fix lookup_process_memory_range with small start address

v3: make vm_range_insert error out properly

Panic does not lead to easy debug, all error paths
are handled to just return someting on error

v4: fix lookup_process_memory_range (again)

That optimistically going left was a more serious bug than just
last iteration, we could just pass by a match and continue down
the tree if the match was not a leaf.

v5: some users actually needed leftmost match, so restore behavior
without the breakage (hopefully)
 2017-10-13 10:00:27 +09:00
Tomoki Shirasawa
99da5b6484 ptrace: unify flags PT_TRACE_SYSCALL_ENTER and PT_TRACE_SYSCALL_EXIT to PT_TRACE_SYSCALL 
refs #961
 2017-10-11 15:43:57 +09:00
Tomoki Shirasawa
665eead78b do_wait: delegate process status for ppid_parent if child process is teacee 
refs #946
 2017-09-29 14:59:34 +09:00
Tomoki Shirasawa
da9bb421cc ptrace: call ptrace_syscall_exit before check_signal 
refs #960
 2017-09-29 10:03:44 +09:00