Commits · 275e97c77d2e24caa06f709cc4bd3f22e3e11a90 · zhul / criu

07 Nov, 2011 9 commits

restore: Increase the stack size for cloned processes · 275e97c7

Cyrill Gorcunov authored Nov 07, 2011

Wasted a couple of hours trying to resolve this non-obvious
issue. It's because bootstrapping the restorer code might
requre more memory than 16K on stack. Strictly speaking
we need a compile time constant here and BUG_ON.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

275e97c7

restore: Fixup pstree reading · b78c664b
Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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b78c664b
restorer: Start using sigreturn_restore · 3b7a4cbe
Cyrill Gorcunov authored Nov 07, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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3b7a4cbe
restore: Add GS-TLS handling · 7e481f89
Cyrill Gorcunov authored Nov 07, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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7e481f89
dump: Add GS-TLS handling · da8f61c1
Cyrill Gorcunov authored Nov 07, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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da8f61c1
restore: Update fsindex and fs base in sake of TLS · 1f7018a1
Cyrill Gorcunov authored Nov 07, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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1f7018a1

dump: Dump TLS via sys_arch_prctl · 8a8850d1

Cyrill Gorcunov authored Nov 07, 2011

As such -- no need for kernel patch.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

8a8850d1

syscalls: Add sys_arch_prctl helper · 3725fd32
Cyrill Gorcunov authored Nov 07, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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3725fd32

syscalls: Add sys_set/get_thread_area helpers · d6e7afe3

Cyrill Gorcunov authored Nov 07, 2011

They are actually banned in kernel for now, but
we might end up needing them, so better to have
them in-place.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

d6e7afe3

05 Nov, 2011 1 commit
- restore: Add restorer bootstrap mmap hint · cb7a9a52
  Cyrill Gorcunov authored Nov 05, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  cb7a9a52
04 Nov, 2011 2 commits
- restore: Don't continue on opening vmas file failure · b69aeb9a
  Cyrill Gorcunov authored Nov 04, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  b69aeb9a
- restore: Add some more debug printing · 34c72fc9
  Cyrill Gorcunov authored Nov 04, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  34c72fc9
03 Nov, 2011 7 commits
- restore: Drop unused struct partial_pt_regs · bf30aa11
  Cyrill Gorcunov authored Nov 03, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  bf30aa11
- restore: Don't forget to free temporary self VMAs · 2ae009ac
  Cyrill Gorcunov authored Nov 03, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  2ae009ac
- restore: Drop dead code, comments · 9e5b145a
  Cyrill Gorcunov authored Nov 03, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  9e5b145a
- restorer: Setup rt_sigframe to a proper address · f63777d2
  Cyrill Gorcunov authored Nov 03, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  f63777d2
- test: Add prints out in static test · 345834ec
  Cyrill Gorcunov authored Nov 03, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  345834ec
- restore: A number of fixups and debug printing · 489745f2
  Cyrill Gorcunov authored Nov 03, 2011
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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>
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  489745f2
- syscalls: Get rid of mnemonic names for registers · ed3c4fba
  Cyrill Gorcunov authored Nov 02, 2011
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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>
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  ed3c4fba
31 Oct, 2011 4 commits

test: Add static sleep test · 48371f72
Cyrill Gorcunov authored Oct 31, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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48371f72
restore: Drop a few more write_hex_n · 6898d7f1
Cyrill Gorcunov authored Oct 31, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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6898d7f1
restore: Drop no longer needed printing · 6a3c7ab3
Cyrill Gorcunov authored Oct 31, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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6a3c7ab3

syscalls: Get rid of register variables · bf41dcac

Cyrill Gorcunov authored Oct 31, 2011

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>

bf41dcac

29 Oct, 2011 1 commit

restore: Call for sigreturn · 5b6748b4

Cyrill Gorcunov authored Oct 29, 2011

Prepare the stack value and do a syscall.
Still it fails because of stack corruption
I think and due to lack of setup of several
important values on thread-info area.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

5b6748b4

28 Oct, 2011 3 commits

restore: Copy gprs to frame · a50600c7
Cyrill Gorcunov authored Oct 28, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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a50600c7

restore: Add some more structures for frame setup · b99eae28

Cyrill Gorcunov authored Oct 28, 2011

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>

b99eae28

syscall: Add sys_unlink · a74f379d
Cyrill Gorcunov authored Oct 28, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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a74f379d

27 Oct, 2011 11 commits
- restore: Align self-length on 16 bytes bound · b9004db8
  Cyrill Gorcunov authored Oct 27, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  b9004db8
- restore: Print out current pid in testing purpose · 040131fd
  Cyrill Gorcunov authored Oct 27, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  040131fd
- syscall: Add getpid syscall · 98cf8f1a
  Cyrill Gorcunov authored Oct 27, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  98cf8f1a
- restore: Handle read-only VMAs · 50d6423b
  Cyrill Gorcunov authored Oct 27, 2011
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If VMA is read-only we need to make it
writable while read its contents, then
we should drop write permission.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  50d6423b
- restore: Implement local_sleep helper · 5f910377
  Cyrill Gorcunov authored Oct 27, 2011
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Use it instead of pause insns to not burn cpu cycles.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  5f910377
- restore: Use MAP_ANONYMOUS for VMAs mapping for testing purpose · 85237215
  Cyrill Gorcunov authored Oct 27, 2011
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While files are not restored yet this flag is needed.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  85237215
- restorer: More readable tracepoints · 1cf38879
  Cyrill Gorcunov authored Oct 27, 2011
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And a pause at the end.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  1cf38879
- restorer: Start real mapping restore procedure · 3c88046a
  Cyrill Gorcunov authored Oct 27, 2011
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At moment fails, but just to have a reference point.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  3c88046a
- restore: Don't unmap special areas until they are handled properly · 4907896e
  Cyrill Gorcunov authored Oct 27, 2011
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Note for testing purpose a pause issued at the end.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  4907896e
- restore: Unmap running VMAs · dfe814aa
  Cyrill Gorcunov authored Oct 27, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  dfe814aa
- restorer: Handle error case in restorer code · 44596497
  Cyrill Gorcunov authored Oct 27, 2011
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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  44596497
26 Oct, 2011 2 commits

restorer: Some preliminary work initiated on mmap heuristics · 57971f72
Cyrill Gorcunov authored Oct 26, 2011
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Just to not lose the snippet.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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57971f72

restore: Dump current VMAs · aaf3291e

Cyrill Gorcunov authored Oct 26, 2011

Restorer needs to know which VMAs
to unmap before map a new set.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

aaf3291e