Retrieves the Performance Monitor settings in counter multiplexing mode and multi-mode for the counting group to which a target thread belongs.
Performance Monitor APIs Library (libpmapi.a)
These subroutines support only the 1:1 threading model. They have been superseded respectively by the pm_get_program_pgroup_mx subroutine and the pm_get_program_pgroup_mm subroutine, which support both the 1:1 and the M:N threading models. A call to the pm_get_program_group_mx subroutine or the pm_get_program_group_mm subroutine is respectively equivalent to a call to the pm_get_program_pgroup_mx subroutine or the pm_get_program_pgroup_mm subroutine with a ptid parameter equal to 0.
The pm_get_program_group_mx subroutine and the pm_get_program_group_mm subroutine retrieve the Performance Monitor settings for the counting group to which a target kernel thread belongs. The thread must be stopped and must be part of a debuggee process under the control of the calling process. This includes mode information and the events being counted, which are in an array of lists of event identifiers. The identifiers come from the lists returned by the pm_initialize subroutine.
When counting in multiplexing mode (pm_get_program_group_mx), the mode is global to all of the events lists. When counting in multi-mode (pm_get_program_group_mm), a mode is associated with each event list.
Counting mode includes the user mode, the kernel mode, and the current counting state.
If the list includes an event which can be used with a threshold (as indicated by the pm_init subroutine), a threshold value is also returned.
The user application must free the allocated array to store the event lists (the events_set field in the prog parameter).
Item | Description |
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pid | Process identifier of the target thread. The target process must be an argument of a debug process. |
tid | Thread identifier of the target thread. |
*prog | Returns which Performance Monitor events and modes are set.
It supports the following modes:
|
*prog_mm | Returns which Performance Monitor events and associated modes
are set. It supports the following modes:
The PM_PROCTREE mode and the PM_COUNT mode are common to all modes set. |
Item | Description |
---|---|
0 | No errors occurred. |
Positive error code | See the pm_error Subroutine to decode the error code. |
See the pm_error Subroutine.
Item | Description |
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/usr/include/pmapi.h | Defines standard macros, data types, and subroutines. |