error::inode-uprobes man page on Scientific

error::inode-uprobes man page on Scientific

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ERROR::INODE-UPROBES(7stap)			   ERROR::INODE-UPROBES(7stap)

NAME
       error::inode-uprobes - limitations of inode-uprobes

DESCRIPTION
       The  uprobes  kernel  facility introduced in Linux 3.5 aims to supplant
       the earlier out-of-tree utrace  patch  to  enable  user-space  probing.
       There  have been some functional limitations in inode-uprobes that pre‐
       clude some systemtap constructs.	 Over time, we hope these  regressions
       will be corrected.

       function.return probes
	      process.function().return	  probes  require  "return-probes"  or
	      "uretprobes" functionality, that has not been implemented yet in
	      the kernel.  Until it is re-added, consider using process.state‐
	      ment() probes placed on source line numbers  at  the  function's
	      return statements.

       function.statement.absolute probes
	      In  utrace-equipped  kernels,  systemtap	made  it  possible  to
	      address probes by literal addresses in the process virtual  mem‐
	      ory  address  space.   The  new inode-uprobes does not have this
	      capability.

SEE ALSO
       stap(1), http://kernelnewbies.org/Linux_3.5, http://sourceware.org/sys‐
       temtap/wiki/utrace, error::reporting(7stap)

						   ERROR::INODE-UPROBES(7stap)

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