[Mono-dev] A inline asm on aix

2016-07-12 Thread Zhanxing Ding 
Hi All,

I am porting mono, does anyone know how to write the inline asm on aix to 
replace the following inline asm.

#define MONO_THREAD_VAR_OFFSET(var,offset) \
__asm ("lis  %0," #var "@tprel@ha\n" \
"addi %0,%0, " #var "@tprel@l\n" \
: "=r" (offset))

In mono-compiler.h

Thank you!


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Re: [Mono-dev] Shutdown hangs

2016-07-12 Thread Chris Swiedler 
Switching to mono 4.0.5 seems a little better, but the problem (or a similar 
problem) is still there, and I get segfaults and other problems with 4.0.

Does anyone have any suggestions for brute-force ways to fix this problem? 
E.g., can I modify ves_icall_System_Environment_Exit or similar to just call 
exit()? I haven't looked at the code but from the call stacks it seems like 
this happens in an attempt to make an orderly shutdown of threads. While that 
would be nice, it's much more important to me for the application to actually 
exit. If I have to, I'll make the process kill itself with SIGKILL, but I'd 
rather not since then I lose the actual exit code.

chris

-Original Message-
From: mono-devel-list-boun...@lists.ximian.com 
[mailto:mono-devel-list-boun...@lists.ximian.com] On Behalf Of Chris Swiedler
Sent: Monday, June 13, 2016 9:55 AM
To: mono-devel-list 
Subject: [Mono-dev] Shutdown hangs

I'm getting semi-reliable shutdown hangs in a mono command-line app using mono 
4.2.3 on Centos 7 64-bit. The app does different things at different times, and 
the shutdowns only seem to happen when it connects to our SQL server database 
(using the Mono database bindings, not ODBC). We've also seen an occasional 
segfault, also seemingly only when doing database work, though those may have 
gone away since upgrading to 4.2.3.

Does anyone have any thoughts? Pstack output below.

Thanks,
chris


Thread 5 (Thread 0x7f4c777ff700 (LWP 11658)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at 
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x005f786c in thread_func (thread_data=0x0) at 
sgen-thread-pool.c:118
#2  0x7f4c77ffedf5 in start_thread (arg=0x7f4c777ff700) at 
pthread_create.c:308
#3  0x7f4c77d2c1ad in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f4c75560700 (LWP 11659)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1  0x0061aa37 in mono_sem_wait (sem=sem@entry=0x953c40 
, alertable=alertable@entry=1) at mono-semaphore.c:107
#2  0x005a1736 in finalizer_thread (unused=) at gc.c:1096
#3  0x005841e9 in start_wrapper_internal (data=) at 
threads.c:725
#4  start_wrapper (data=) at threads.c:772
#5  0x00621026 in inner_start_thread (arg=0x7fffda0d42e0) at 
mono-threads-posix.c:97
#6  0x7f4c77ffedf5 in start_thread (arg=0x7f4c75560700) at 
pthread_create.c:308
#7  0x7f4c77d2c1ad in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f4c74fd3700 (LWP 11660)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1  0x0061aa37 in mono_sem_wait (sem=sem@entry=0x7f4c68000940, 
alertable=alertable@entry=0) at mono-semaphore.c:107
#2  0x0061f5ba in mono_thread_info_wait_for_resume (info=) at mono-threads.c:110
#3  mono_thread_info_end_self_suspend () at mono-threads.c:692
#4  0x00583d2c in self_suspend_internal (thread=0x7f4c78a74330) at 
threads.c:4546
#5  mono_thread_execute_interruption (thread=thread@entry=0x7f4c78a74330) at 
threads.c:4050
#6  0x00583f50 in mono_thread_interruption_checkpoint_request 
(bypass_abort_protection=bypass_abort_protection@entry=1) at threads.c:4184
#7  0x00584dae in mono_thread_force_interruption_checkpoint () at 
threads.c:4221

Thread 2 (Thread 0x7f4c746ff700 (LWP 11661)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1  0x0061aa37 in mono_sem_wait (sem=sem@entry=0x7f4c6c000940, 
alertable=alertable@entry=0) at mono-semaphore.c:107
#2  0x0061f5ba in mono_thread_info_wait_for_resume (info=) at mono-threads.c:110
#3  mono_thread_info_end_self_suspend () at mono-threads.c:692
#4  0x00583d2c in self_suspend_internal (thread=0x7f4c78a74430) at 
threads.c:4546
#5  mono_thread_execute_interruption (thread=thread@entry=0x7f4c78a74430) at 
threads.c:4050
#6  0x005851f9 in ves_icall_System_Threading_Thread_Sleep_internal 
(ms=1000) at threads.c:1206
#17 0x7f4c756fa2e7 in System_Threading_Thread_Sleep_int 
(millisecondsTimeout=1000) at 
/home/cswiedler/mono-main/Extern/mono/source/external/referencesource/mscorlib/system/threading/thread.cs:715

Thread 1 (Thread 0x7f4c78b34780 (LWP 11657)):
#0  0x7f4c7800599d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00632a5a in monoeg_g_usleep (microseconds=1935890) at 
gdate-unix.c:53
#2  0x0061f2bb in suspend_sync_nolock (id=id@entry=139966347736832, 
interrupt_kernel=interrupt_kernel@entry=1) at mono-threads.c:870
#3  0x0061f732 in mono_thread_info_safe_suspend_and_run 
(id=139966347736832, interrupt_kernel=interrupt_kernel@entry=1, 
callback=callback@entry=0x5813c0 , 
user_data=user_data@entry=0x7fffda0d3a10) at mono-threads.c:891
#4  0x00581d29 in suspend_thread_internal (thread=0x7f4c78a74430, 
interrupt=1) at threads.c:4531
#5  0x005834ff in

Re: [Mono-dev] How to stop and debug native code of a method?

2016-07-12 Thread Robert Jordan 

On 12.07.2016 12:39, Pin Cheng wrote:

Hi All,

I am porting mono to a platform,

I wander if I want to trace a method(compiled into native code) how do

You stop the program running when entering into this method? Gdb can

Watch the PC register, but it is very slow, I have wait for tens of minutes.

Is there any efficient way to interrupt some method running?



mono --break namespace.class:methodname  your-assembly.exe

See mono's man page.

Robert


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[Mono-dev] How to stop and debug native code of a method?

2016-07-12 Thread Pin Cheng 
Hi All,
I am porting mono to a platform,
I wander if I want to trace a method(compiled into native code) how do
You stop the program running when entering into this method? Gdb can
Watch the PC register, but it is very slow, I have wait for tens of minutes.
Is there any efficient way to interrupt some method running?
Thank you in advance.

Pin



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