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1696 Commits

Author SHA1 Message Date
Cyrill Gorcunov
bf30aa1130 restore: Drop unused struct partial_pt_regs 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-11-03 19:31:07 +04:00
Cyrill Gorcunov
489745f235 restore: A number of fixups and debug printing 
An idea is to align restorer size to be sure it
wont be stripped in a middle of code.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-11-03 11:58:45 +04:00
Cyrill Gorcunov
ed3c4fbacf syscalls: Get rid of mnemonic names for registers 
Use explicit registers name instead just to be sure it
wont cause side effects on most gcc versions.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-11-03 11:55:29 +04:00
Cyrill Gorcunov
bf41dcac48 syscalls: Get rid of register variables 
It's been found that gcc 4.1.2 20080704 (Red Hat 4.1.2-48)
ignores register variables so to be on a safe side rewrite
syscalls with inline assembly without them.

nb: gcc version 4.6.1 20110908 (Red Hat 4.6.1-9) (GCC)
compiles them correctly.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-31 16:33:43 +04:00
Cyrill Gorcunov
b99eae2809 restore: Add some more structures for frame setup 
Some of them are already in system header files
but until I debug all things I simply picked up
kernel's definitions just to be more-less safe.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-29 01:13:32 +04:00
Cyrill Gorcunov
a74f379d60 syscall: Add sys_unlink 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-28 14:03:59 +04:00
Cyrill Gorcunov
98cf8f1a0f syscall: Add getpid syscall 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-28 00:40:20 +04:00
Cyrill Gorcunov
aaf3291e00 restore: Dump current VMAs 
Restorer needs to know which VMAs
to unmap before map a new set.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 22:50:46 +04:00
Cyrill Gorcunov
2cc7488de2 dump: Make VMA parsing to handle absence of map_files 
Needed in testing purposes. Also make free_mappings
being a global one (will need it in restorer).

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 22:48:10 +04:00
Cyrill Gorcunov
fa56125d16 util: Move memcopy helper into the header 
Since we will need it in parasite and restorer
code rename it to inline_memcpy to avoid name
collision.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 18:05:32 +04:00
Cyrill Gorcunov
168d8cf17d restore: restorer is finally alive 
No real restore code yet, but at least it
produce message ;)

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 17:35:50 +04:00
Cyrill Gorcunov
791f2c8c25 restore: Call for indirect execution 
Doesn't work at moment but just to have
a snapshot point.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 11:16:00 +04:00
Cyrill Gorcunov
b016db7dea syscall: Add sys_exit 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 10:58:10 +04:00
Cyrill Gorcunov
0d20dd0b41 util: Add hex_dump helper 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 10:10:19 +04:00
Cyrill Gorcunov
ae41bc9d2a restore: Add restore_core_args facility 
More convenient instead of manual offset calculations.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-26 00:30:41 +04:00
Cyrill Gorcunov
f8c46a5de1 restore: Add rt_sigframe 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-25 19:27:56 +04:00
Cyrill Gorcunov
c32845ef60 dump: Shrink struct core_entry twice 
No need to keep it that big. Note from
this patch if we ever deside to use kernel
elf approach -- the image structures are
to be updated in kernel as well.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-25 14:59:35 +04:00
Cyrill Gorcunov
57b45ea5eb restore: Preliminary scheme for restore 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 23:56:36 +04:00
Cyrill Gorcunov
63e08215aa restore: Add restorer test 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 22:23:06 +04:00
Cyrill Gorcunov
0fe80627d6 syscall: Use always_inline instead of __always_inline 
__always_inline is internal defenition

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 22:18:13 +04:00
Cyrill Gorcunov
79c67231a1 syscall: The should be always inlined 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 22:16:14 +04:00
Cyrill Gorcunov
5fd13e04ab syscall: Add __NR_rt_sigreturn 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 17:17:39 +04:00
Cyrill Gorcunov
ea0f8eac1d util: Add open_fmt_ro helper 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 13:56:03 +04:00
Cyrill Gorcunov
f8ad351f4d util: Make open_fmt being more general 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 13:51:41 +04:00
Cyrill Gorcunov
26857cc4e5 util: Move various helpers there 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-24 13:43:21 +04:00
Cyrill Gorcunov
af647ce009 dump: Dump threads params as well 
We only need registers at the moment

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-23 12:43:52 +04:00
Cyrill Gorcunov
611debc312 dump: Add parsing of thread pids 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-23 12:43:15 +04:00
Cyrill Gorcunov
6c4798fd44 util: Rename objzero to memzero_p 
More natural name

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-23 12:30:28 +04:00
Cyrill Gorcunov
5f53dc21d9 util: Change read_safe_eof and introduce objzero and memzero 
Should be more convenient to use

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-23 12:30:17 +04:00
Cyrill Gorcunov
a0e37e779d util: Add xstrdup helper 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-23 12:01:39 +04:00
Cyrill Gorcunov
750be4218a Move syscall codes into separate file 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-19 13:56:29 +04:00
Cyrill Gorcunov
a0f463c27d Move seize related functions into seize.[ch] 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-13 19:18:43 +04:00
Cyrill Gorcunov
a896bfd628 dump: Add some more comments on page dumping routines 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-13 16:36:50 +04:00
Cyrill Gorcunov
4389c021fc dump, kernel: Add some mm structure members into the dump 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-12 18:05:07 +04:00
Cyrill Gorcunov
ce65f2f718 dump, kernel: Add start/end_code data 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-12 16:02:36 +04:00
Cyrill Gorcunov
f7e6e63b44 kernel, dump: Obtain brk value 
Also re-make image to be 2 pages in size
which should be enough for basic params we
need to restore tasks.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-12 09:40:02 +04:00
Cyrill Gorcunov
ec9496c147 image: Use CKPT_ARCH_SIZE 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-11 10:10:07 +04:00
Cyrill Gorcunov
4b7a318322 dump: Prepare for new core_entry layout 
core_entry layout is arch dependant.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-11 01:32:39 +04:00
Cyrill Gorcunov
99466eb328 dump: Add dumping a tasks's flags 
We need it to figure out if FPU was used
so that we need to restore context later.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-10 17:05:12 +04:00
Cyrill Gorcunov
609e431376 Add cr_options structure 
We will need more options since the
tool should support both cgroups freezer
and a regular task stop/dump/restore/continue
transition.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-04 01:50:19 +04:00
Cyrill Gorcunov
f170895975 dump: Allow parasite-dumper to write pages with non-privileged process 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-03 11:52:13 +04:00
Cyrill Gorcunov
8f0af4f8a6 Restore task's command line as well 
Note binary format for core file is changed.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-10-01 13:24:34 +04:00
Cyrill Gorcunov
a00ef142f8 Use pr_err for error printing 
To follow kernel style

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-09-30 14:37:12 +04:00
Cyrill Gorcunov
401464d22a Add close_safe helper 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-09-27 18:28:09 +04:00
Cyrill Gorcunov
30f002d21c Add comments on VMA area status flags 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-09-26 01:26:11 +04:00
Cyrill Gorcunov
523de23624 Initial commit 
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
 2011-09-23 12:00:45 +04:00