1ERROR::INODE-UPROBES(7stap)                        ERROR::INODE-UPROBES(7stap)
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NAME

6       error::inode-uprobes - limitations of inode-uprobes
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DESCRIPTION

10       The  uprobes  kernel  facility introduced in Linux 3.5 aims to supplant
11       the earlier out-of-tree utrace  patch  to  enable  user-space  probing.
12       There  have been some functional limitations in inode-uprobes that pre‐
13       clude some systemtap constructs.  Over time, we hope these  regressions
14       will be corrected.
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17       function.return probes
18              process.function().return   probes  require  "return-probes"  or
19              "uretprobes" functionality, which was  not  implemented  in  the
20              builtin  inode-uprobes until kernel 3.10.  If you cannot upgrade
21              your kernel, consider using process.statement() probes placed on
22              source line numbers at the function's return statements.
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25       function.statement.absolute probes
26              In  utrace-equipped  kernels,  systemtap  made  it  possible  to
27              address probes by literal addresses in the process virtual  mem‐
28              ory  address  space.   The  new inode-uprobes does not have this
29              capability.
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SEE ALSO

34       stap(1),
35       http://kernelnewbies.org/Linux_3.5,
36       http://sourceware.org/systemtap/wiki/utrace,
37       error::reporting(7stap)
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41                                                   ERROR::INODE-UPROBES(7stap)