diff options
| author | Mitchell Horne <mhorne@FreeBSD.org> | 2023-06-16 16:38:26 +0000 |
|---|---|---|
| committer | Mitchell Horne <mhorne@FreeBSD.org> | 2023-07-17 16:45:38 +0000 |
| commit | 3c4860d3eeed3ef56be988ec1afdcfb2fba9f3e0 (patch) | |
| tree | a56443d57be379ddce99e5b1c836d63e5677abef | |
| parent | ed942d5a173870e786fd422c9edfbe5037626b4b (diff) | |
hwpmc: add error for HWPMC_DEBUG without KTR
The option is a no-op otherwise, but this is not necessarily obvious.
Failing the compile gives the user a hint.
Reviewed by: jkoshy, emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40544
(cherry picked from commit 569f89b2f442e2187f750a5892a1662390364cc6)
| -rw-r--r-- | sys/sys/pmc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/sys/pmc.h b/sys/sys/pmc.h index 1983dbb91578..2384a3a13919 100644 --- a/sys/sys/pmc.h +++ b/sys/sys/pmc.h @@ -1070,6 +1070,12 @@ extern struct pmc_cpu **pmc_pcpu; extern struct pmc_driverstats pmc_stats; #if defined(HWPMC_DEBUG) + +/* HWPMC_DEBUG without KTR will compile but is a no-op. */ +#if !defined(KTR) || !defined(KTR_COMPILE) || ((KTR_COMPILE & KTR_SUBSYS) == 0) +#error "HWPMC_DEBUG requires KTR and KTR_COMPILE=KTR_SUBSYS -- see ktr(4)" +#endif + #include <sys/ktr.h> /* debug flags, major flag groups */ |