Changes in Makefile

5369f8e73eff4772b133284012cb810e50d7c018 - hwpmc: add MPERF/APERF MSR support for AMD/Intel CPUs

Thu, 03 Sep 2026 19:51:38 +0200

hwpmc: add MPERF/APERF MSR support for AMD/Intel CPUsAdd support for reading the MPERF (MSR 0xE7) and APERF (MSR 0xE8)model-specific registers on AMD/Intel CPUs through hwpmc(4). Thesecounters track maximum and actual performance frequency respectively,and are used to compute effective CPU frequency scaling independentof the nominal TSC rate. The name of the class was chosen as PERFbecause later support for other PERF MSRs can be added to the sameclass.Extend libpmc(3) to expose the AMD/Intel MPERF/APERF counters addedto hwpmc(4) in the companion kernel change, so userland consumers(pmcstat(8), etc.) can allocate and read these events by name.Document the new PERF class and its MPERF/APERF counters in a newpmc.perf.3 manual page, describing their semantics and how to readthem via pmc(3) and pmcstat(8).Bump PMC_VERSION_MINOR.Signed-off-by: Anderson Nascimento Reviewed by: Ali Mashtizadeh , mhorneReviewed by: ziaee (manpages)Sponsored by: AMDDifferential Revision: https://reviews.freebsd.org/D58647 List of files: /freebsd/lib/libpmc/Makefile

3fdd05c612169d56c30b90d72533b75383210e81 - libpmc: userland support and pmc.rapl.3 for the RAPL class

Tue, 28 Jul 2026 16:52:22 +0200

libpmc: userland support and pmc.rapl.3 for the RAPL classRegister PMC_CLASS_RAPL in libpmc: event table, allocator, class-tabledescriptor, and the event-name/class-listing lookups, all x86-guardedand modeled on the TSC class. Energy events are read-only andunqualified. The class prefix (RAPL-) supplies the friendly spelling, sopmcstat -S rapl-energy-pkg resolves to the canonical ENERGY_PKG event.Add a pmc.rapl.3 manual page documenting the events, counter scope, themicrojoule unit and wrap handling, and the NUMA/package domain mapping;link it from pmc.3.Reviewed by: mhorneDiscussed with: Ali Mashtizadeh Sponsored by: AMDDifferential Revision: https://reviews.freebsd.org/D58029 List of files: /freebsd/lib/libpmc/Makefile

df47355fae720fd8f63f36a50c8933f8342483d2 - libpmc: Add support for IBS qualifiers

Wed, 18 Mar 2026 05:27:09 +0100

libpmc: Add support for IBS qualifiersAdd support to libpmc for parsing the IBS qualifiers and computing thectl register value as a function of the qualifiers and the sample rate.This includes all of the flags available up to AMD Zen 5. Along sidethese user facing changes I included the documentation for AMD IBS.Reviewed by: mhorneSponsored by: NetflixPull Request: https://github.com/freebsd/freebsd-src/pull/2081 List of files: /freebsd/lib/libpmc/Makefile

67c3c3a274468d09925af3cf64da3f9cf878cc80 - libpmc: Move libpmc and utils to a new pmc package

Tue, 23 Sep 2025 23:30:49 +0200

libpmc: Move libpmc and utils to a new pmc packageDue to the size of libpmc.so.5, this reduces the size of the -utilitiespackage by 10%.MFC after: 1 dayReviewed by: manu, adrian, emasteDifferential Revision: https://reviews.freebsd.org/D52662 List of files: /freebsd/lib/libpmc/Makefile

e9ac41698b2f322d55ccf9da50a3596edb2c1800 - Remove residual blank line at start of Makefile

Mon, 15 Jul 2024 06:46:32 +0200

Remove residual blank line at start of MakefileThis is a residual of the $FreeBSD$ removal.MFC After: 3 days (though I'll just run the command on the branches)Sponsored by: Netflix List of files: /freebsd/lib/libpmc/Makefile

b293497146fea63d76a1c7492c3a21e4e5bf8f48 - pmc.amd(3): rename from pmc.k8(3)

Wed, 18 Oct 2023 19:57:06 +0200

pmc.amd(3): rename from pmc.k8(3)This is the first step in recognizing that the K8 microarchitecturerepresents a small and aged subset of AMD CPUs supported by this class.Future changes will update the code and documentation details to betterreflect this.Keep the old filename as an alias.Reviewed by: jkoshyMFC after: 1 weekSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D41279 List of files: /freebsd/lib/libpmc/Makefile

82d6d46d0d1dbdaa32c754f97e94a772d01cb26c - pmc: remove last bits of AMD K7 CPU support

Wed, 18 Oct 2023 19:56:41 +0200

pmc: remove last bits of AMD K7 CPU supportThis includes event definitions from sys/pmc_events.h, definitions fromsys/pmc.h, and the man pages.Reviewed by: jkoshySponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D41275 List of files: /freebsd/lib/libpmc/Makefile

d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf - Remove $FreeBSD$: one-line sh pattern

Wed, 16 Aug 2023 19:55:03 +0200

Remove $FreeBSD$: one-line sh patternRemove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ List of files: /freebsd/lib/libpmc/Makefile

c6b3f47fedd3f94f74cc4f7c40761b1d0e777f17 - libpmc: Use LIB_CXX instead of explicit LDADD to link a C++ library.

Thu, 23 Mar 2023 17:31:29 +0100

libpmc: Use LIB_CXX instead of explicit LDADD to link a C++ library.This uses the C++ compiler as the linker instead of the C compilerletting the compiler driver pick the right libraries. This is a no-opon main and stable/13 but matters for stable/12 where the currentlogic breaks for external GCC since it tries to use a non-existentlibstdc++.Reviewed by: emasteMFC after: 1 weekDifferential Revision: https://reviews.freebsd.org/D39197 List of files: /freebsd/lib/libpmc/Makefile

e92d69234579395a79807fe303a75ba3c614c90f - libpmc: remove unused auto_ptr warning suppression

Tue, 29 Nov 2022 20:41:08 +0100

libpmc: remove unused auto_ptr warning suppressionlibpmc used -Wno-deprecated-declarations to silence warnings about usageof deprecated std::auto_ptr, but there is (now) now use of auto_ptr inlibpmc.Reviewed by: mhorneSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D37576 List of files: /freebsd/lib/libpmc/Makefile

1f5679569dd42a9e431f0a40c820bc0d40f51ba5 - libpmc: pmc_init() should avoid overflowing pmc_class_table

Wed, 31 Aug 2022 10:09:18 +0200

libpmc: pmc_init() should avoid overflowing pmc_class_tableUse calloc().Walk the class list we get from kernel, so we will not add somethingthe kernel does not know about.Avoid picking headers from /usr/include.Differential Revision: https://reviews.freebsd.org/D36401 List of files: /freebsd/lib/libpmc/Makefile

cedbdaf0e586c72fa990dceaa20c12c0ec9e3eba - Add pmc.dmc-620(3) man page.

Wed, 16 Feb 2022 01:19:46 +0100

Add pmc.dmc-620(3) man page.Reviewed by: pauammaSponsored By: Ampere ComputingDifferential Revision: https://reviews.freebsd.org/D32669 List of files: /freebsd/lib/libpmc/Makefile

da4e1e319c6cdaa1c6b3b44d8523e660a5e77e10 - Add the Arm CoreLink CMN-600 Coherent Mesh Network Controller PMU driver man page.

Wed, 16 Feb 2022 01:36:57 +0100

Add the Arm CoreLink CMN-600 Coherent Mesh Network Controller PMU driver man page.Add the Arm CoreLink CMN-600 Coherent Mesh Network Controller PMU driver man page.Reviewed by: pauamma_gundo.comSponsored By: ARMDifferential Revision: https://reviews.freebsd.org/D32335 List of files: /freebsd/lib/libpmc/Makefile

99830f702d8deab33c8704b4d2747385e5c8aac2 - libpmc: remove mips support

Fri, 28 Jan 2022 21:34:36 +0100

libpmc: remove mips supportBye bye!Reviewed by: imp, emasteSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D34083 List of files: /freebsd/lib/libpmc/Makefile

d78896e46f1d7744155919476c012400321d0dab - pmc(3): remove Pentium-related man pages and references

Tue, 10 Aug 2021 22:19:58 +0200

pmc(3): remove Pentium-related man pages and referencesSupport for Pentium events was removed completely in e92a1350b50e.Don't bump .Dd where we are just removing xrefs.Reviewed by: emasteMFC after: 1 weekSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D31423 List of files: /freebsd/lib/libpmc/Makefile

507d68984a010dab0c3ecc5477c36526c3a7fa48 - libpmc: limit pmu-events to 64-bit powerpc

Mon, 31 May 2021 22:24:15 +0200

libpmc: limit pmu-events to 64-bit powerpcAlthough currently unused, there are only pmu event definitions forPOWER8 and POWER9. There is no sense in building these on 32-bitplatforms.Sponsored by: The FreeBSD Foundation List of files: /freebsd/lib/libpmc/Makefile

3864da302af34853ddb2c33a42de5668a0d68cdd - libpmc: use $MACHINE_CPUARCH

Mon, 31 May 2021 22:20:08 +0200

libpmc: use $MACHINE_CPUARCHThis is preferred over $MACHINE_ARCH for these types of checks, althoughit makes no difference for amd64 or i386. No functional change intended.Sponsored by: The FreeBSD Foundation List of files: /freebsd/lib/libpmc/Makefile

689c7e7975cdee38ca6fd60ad3372d55c43c948c - libpmc: always generate libpmc_events.c

Mon, 31 May 2021 16:24:04 +0200

libpmc: always generate libpmc_events.cThe jevents build tool will create an empty table if it doesn't find anyevents, so we can remove the extra $MACHINE_CPUARCH checks.Reviewed by: gnn, ray, emasteMFC after: 2 weeksSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D30531 List of files: /freebsd/lib/libpmc/Makefile

04e34c0202ea50cea67d5779f54bc612c74e6532 - libpmc: fix linking with C programs

Mon, 15 Feb 2021 23:51:31 +0100

libpmc: fix linking with C programsRevision r334749 Added some C++ code to libpmc. It didn't change the ABI,but it did introduce a dependency on libc++. Nobody noticed because everyprogram that in the base system that uses libpmc is also C++.Reported-by: Dom Dwyer Reviewed By: vangyzenMFC after: 3 daysDifferential Revision: https://reviews.freebsd.org/D28550 List of files: /freebsd/lib/libpmc/Makefile

aa76f0c39741527f14562b1823427774b993668c - PMC: remove now orphaned PMC for INTEL XScale processors.

Fri, 25 Dec 2020 11:41:34 +0100

PMC: remove now orphaned PMC for INTEL XScale processors.Support for XScale architecture has been deleted in FreeBSD 13. List of files: /freebsd/lib/libpmc/Makefile