Cyrill Gorcunov
1e7bbd35de
restore: Add threads restoration
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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>
2011-11-12 19:26:40 +04:00
Cyrill Gorcunov
76df6d9ed5
syscalls: Add sys_prctl helper
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-11-08 16:39:21 +04:00
Cyrill Gorcunov
3725fd326d
syscalls: Add sys_arch_prctl helper
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-11-07 15:24:07 +04:00
Cyrill Gorcunov
d6e7afe3d8
syscalls: Add sys_set/get_thread_area helpers
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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>
2011-11-07 14:47:04 +04:00
Cyrill Gorcunov
ed3c4fbacf
syscalls: Get rid of mnemonic names for registers
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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>
2011-11-03 11:55:29 +04:00
Cyrill Gorcunov
bf41dcac48
syscalls: Get rid of register variables
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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
a74f379d60
syscall: Add sys_unlink
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-10-28 14:03:59 +04:00
Cyrill Gorcunov
98cf8f1a0f
syscall: Add getpid syscall
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-10-28 00:40:20 +04:00
Cyrill Gorcunov
b016db7dea
syscall: Add sys_exit
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-10-26 10:58:10 +04:00
Cyrill Gorcunov
0fe80627d6
syscall: Use always_inline instead of __always_inline
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__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
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-10-24 22:16:14 +04:00
Cyrill Gorcunov
5fd13e04ab
syscall: Add __NR_rt_sigreturn
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-10-24 17:17:39 +04:00
Cyrill Gorcunov
750be4218a
Move syscall codes into separate file
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-10-19 13:56:29 +04:00
Cyrill Gorcunov
f7e6e63b44
kernel, dump: Obtain brk value
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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
523de23624
Initial commit
...
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2011-09-23 12:00:45 +04:00
