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Old 04-20-2007, 07:30 AM   #1
archieval
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Where is the rt_sigprocmask() function?


I grepped the kernel source codes of Vine Linux 2.6.10 and I did not find the function rt_sigprocmask(). I would want to use this for unblocking real-time signals in a certain kernel process because it seems that the sigprocmask() is not working. Can you please tell me where can I find this or what to include in order to use this? Thanks!
 
Old 04-20-2007, 10:49 AM   #2
osor
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In kernelspace, you use “sys_rt_sigprocmask”.
 
Old 04-21-2007, 05:32 AM   #3
archieval
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Ok thanks! what do I have to include to use this? And what are the arguments?
 
Old 04-21-2007, 11:31 AM   #4
osor
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Quote:
Originally Posted by archieval
Ok thanks! what do I have to include to use this? And what are the arguments?
Um…

If you read the link I gave before, you would see that the function prototype is in linux/syscalls.h. So you do an “#include <linux/syscalls.h>” to use this. For the arguments see here again.
 
Old 04-22-2007, 01:50 AM   #5
archieval
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Ok thanks, I am sorry I didn't notice that there was a link. I thought it was just a different font color. Thanks!
 
Old 04-22-2007, 10:38 PM   #6
archieval
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I still can't use sys_rt_sigprocmask. Yes it is recognize by the compiler when I included linux/syscalls.h, because when I try to put wrong arguments, it givess an error. But when I load the module to the kernel, it says undefined symbol 'sys_rt_sigprocmask'. Also I noticed that the two arguments are supposed to be user space variables (because of the __user). So this means that I still need to do some copy_from_user routines just to get the values for these arguments from the user space? Thanks!
 
  


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