pmc_init(3)

pmc_init3

Initialize library

Usage

#include <pmc.h>

int

pmc_init(void);

Library

library “libpmc”

Overview

Function pmc_init() initializes the PMC library. This function must be called before any of the other functions in the library.

Return values

The pmc_init() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

Errors

A call to pmc_init() may fail with the following errors:

[ENOENT]

The hwpmc(4) module was not found in the kernel.

[EPROGMISMATCH]

The library's version number did not match that expected by hwpmc(4).

[ENXIO]

PMC hardware on this system is unsupported.

Releases

49 releases since FreeBSD 6.0-RELEASE; the text changed 33 times.

  1. 6.0
  2. 6.1–6.3
  3. 6.4
  4. 7.0
  5. 7.1
  6. 7.2
  7. 7.3
  8. 7.4
  9. 8.0
  10. 8.1
  11. 8.2
  12. 8.3
  13. 8.4
  14. 9.0
  15. 9.1
  16. 9.2
  17. 9.3
  18. 10.0
  19. 10.1
  20. 10.2
  21. 10.3
  22. 10.4
  23. 11.0
  24. 11.1
  25. 11.2
  26. 11.3
  27. 11.4
  28. 12.0
  29. 12.1
  30. 12.2
  31. 12.3
  32. 12.4
  33. 13.0–13.2
  34. 13.3–16.0

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.