Commits · 6a26e75abaf74dd058e80e85b4468e5abcffe38c · zhul / criu

13 Nov, 2011 3 commits

Cyrill Gorcunov authored Nov 13, 2011

We dont use Elf restore anymore, drop it.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

6a26e75a

cleanup: Drop unneeded sources · e793eb75
Cyrill Gorcunov authored Nov 13, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
e793eb75

restore: Handle process tree correctly · 3e725434

Cyrill Gorcunov authored Nov 13, 2011

pstree file is a single one for all processes and
threads so skip non-matched entries correctly.

This brings testee test back to life.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

3e725434

12 Nov, 2011 1 commit

restore: Add threads restoration · 1e7bbd35

Cyrill Gorcunov authored Nov 12, 2011

Now threads restortion (and TLS as well) works.
Threads test reports the following

    2775 (main): Counter value:    3 tls_data =    1
    2775 (main): ( 0) fsgs_base 7f9597aa46f0
    2775 (main): ( 0) fsgs_base        0
    2775 (thr3): Counter value:    4 tls_data =    4
    2775 (thr3): ( 0) fsgs_base 42c57940
    2775 (thr3): ( 0) fsgs_base        0
    2775 (thr2): Counter value:    3 tls_data =    2
    2775 (thr2): ( 0) fsgs_base 42456940
    2775 (thr2): ( 0) fsgs_base        0
    2775 (thr1): Counter value:    4 tls_data =    3
    2775 (thr1): ( 0) fsgs_base 40c62940
    2775 (thr1): ( 0) fsgs_base        0
    2775 (main): Counter value:    4 tls_data =    1
    2775 (main): ( 0) fsgs_base 7f9597aa46f0
    2775 (main): ( 0) fsgs_base        0
    2775 (thr1): Counter value:    5 tls_data =    3
    2775 (thr1): ( 0) fsgs_base 40c62940
    2775 (thr1): ( 0) fsgs_base        0

as expected.

This commits merges all preliminary commits into
the final one (sigreturn branch was always experimental
and forced update).

Still some problems remain:

1) While creating threads with clone() the
   flags are to be revisited. We use some predefined
   set here but it's not really correct.

2) No setup of pids in PCB thread zone.

3) No restore of FPU.

But at least on some basic tasks restore works well.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

1e7bbd35

09 Nov, 2011 1 commit
- dump: Add missing newline in error message · db206481
  Cyrill Gorcunov authored Nov 09, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  db206481
08 Nov, 2011 11 commits
- dump, restore: Add blocked signals mask · 0a26593a
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  0a26593a
- restorer: Setup task data via prctl · 73e64bec
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  73e64bec
- restore: Use prctl for vDSO restoration · 566a900e
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  566a900e
- kernel: Add patches needed · a4d37dcf
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  a4d37dcf
- syscalls: Add sys_prctl helper · 76df6d9e
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  76df6d9e
- Update kernel area · b50ee4a1
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  b50ee4a1
- Move vma prot setup into parsing helper · 83c209ef
  Cyrill Gorcunov authored Nov 08, 2011
```
To shrink restorer code.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  83c209ef
- restore: Add PROT_GROWSDOWN for stack area · 35502c45
  Cyrill Gorcunov authored Nov 08, 2011
```
Since we stick with x86 for a while.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  35502c45
- dump: Don't fail on dumping paths for anon shared mappings · 0355f1d2
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  0355f1d2
- restore: Don't forget to close file descriptors on VMAs · c07a4b2c
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  c07a4b2c
- dump: Anonymous shared mappings should have MAP_ANONYMOUS flag · b9d0883d
  Cyrill Gorcunov authored Nov 08, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  b9d0883d
07 Nov, 2011 11 commits
- restore: 32k of stack memory is enough · 20c3bf10
  Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  20c3bf10
- dump: Don't forget to save MAP_ANONYMOUS if it was there · 099c9c00
  Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  099c9c00
- 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>
```
  b78c664b
- restorer: Start using sigreturn_restore · 3b7a4cbe
  Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  3b7a4cbe
- restore: Add GS-TLS handling · 7e481f89
  Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  7e481f89
- dump: Add GS-TLS handling · da8f61c1
  Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  da8f61c1
- restore: Update fsindex and fs base in sake of TLS · 1f7018a1
  Cyrill Gorcunov authored Nov 07, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  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
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  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
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  cb7a9a52
04 Nov, 2011 2 commits
- restore: Don't continue on opening vmas file failure · b69aeb9a
  Cyrill Gorcunov authored Nov 04, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  b69aeb9a
- restore: Add some more debug printing · 34c72fc9
  Cyrill Gorcunov authored Nov 04, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  34c72fc9
03 Nov, 2011 7 commits
- restore: Drop unused struct partial_pt_regs · bf30aa11
  Cyrill Gorcunov authored Nov 03, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  bf30aa11
- restore: Don't forget to free temporary self VMAs · 2ae009ac
  Cyrill Gorcunov authored Nov 03, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  2ae009ac
- restore: Drop dead code, comments · 9e5b145a
  Cyrill Gorcunov authored Nov 03, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  9e5b145a
- restorer: Setup rt_sigframe to a proper address · f63777d2
  Cyrill Gorcunov authored Nov 03, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  f63777d2
- test: Add prints out in static test · 345834ec
  Cyrill Gorcunov authored Nov 03, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  345834ec
- restore: A number of fixups and debug printing · 489745f2
  Cyrill Gorcunov authored Nov 03, 2011
```
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>
```
  489745f2
- syscalls: Get rid of mnemonic names for registers · ed3c4fba
  Cyrill Gorcunov authored Nov 02, 2011
```
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>
```
  ed3c4fba
31 Oct, 2011 3 commits
- test: Add static sleep test · 48371f72
  Cyrill Gorcunov authored Oct 31, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  48371f72
- restore: Drop a few more write_hex_n · 6898d7f1
  Cyrill Gorcunov authored Oct 31, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  6898d7f1
- restore: Drop no longer needed printing · 6a3c7ab3
  Cyrill Gorcunov authored Oct 31, 2011
```
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
```
  6a3c7ab3