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a2f733ab |
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24-Nov-2023 |
Warner Losh <imp@FreeBSD.org> |
lib: Automated cleanup of cdefs and other formatting Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
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1d386b48 |
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16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
Remove $FreeBSD$: one-line .c pattern Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
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94426d21 |
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30-May-2023 |
Jessica Clarke <jrtc27@FreeBSD.org> |
pmc: Rework PROCEXEC event to support PIEs Currently the PROCEXEC event only reports a single address, entryaddr, which is the entry point of the interpreter in the typical dynamic case, and used solely to calculate the base address of the interpreter. For PDEs this is fine, since the base address is known from the program headers, but for PIEs the base address varies at run time based on where the kernel chooses to load it, and so pmcstat has no way of knowing the real address ranges for the executable. This was less of an issue in the past since PIEs were rare, but now they're on by default on 64-bit architectures it's more of a problem. To solve this, pass through what was picked for et_dyn_addr by the kernel, and use that as the offset for the executable's start address just as is done for everything in the kernel. Since we're changing this interface, sanitise the way we determine the interpreter's base address by passing it through directly rather than indirectly via the entry point and having to subtract off whatever the ELF header's e_entry is (and anything that wants the entry point in future can still add that back on as needed; this merely changes the interface to directly provide the underlying variables involved). This will be followed up by a bump to the pmc major version. Reviewed by: jhb Differential Revision: https://reviews.freebsd.org/D39595
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959826ca |
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26-May-2018 |
Matt Macy <mmacy@FreeBSD.org> |
pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the vendor provided pmu-events tables and sundry cleanups. The vendor pmu-events tables provide counter descriptions, default sample rates, event, umask, and flag values for all the counter configuration permutations. Using this gives us: - much simpler kernel code for the MD component - helpful long and short event descriptions - simpler user code - sample rates that won't overload the system Update man page with newer sample types and remove unused sample type.
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5506ceb8 |
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26-May-2018 |
Matt Macy <mmacy@FreeBSD.org> |
Revert r334242 "pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the" because of squash commit messages
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49281356 |
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26-May-2018 |
Matt Macy <mmacy@FreeBSD.org> |
pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the vendor provided pmu-events tables and sundry cleanups. The vendor pmu-events tables provide counter descriptions, default sample rates, event, umask, and flag values for all the counter configuration permutations. Using this gives us: - much simpler kernel code for the MD component - helpful long and short event descriptions - simpler user code - sample rates that won't overload the system Update man page with newer sample types and remove unused sample type. Squashed commit of the following: commit 4459d43eff815bec08ccc5533dbe5de846f03128 Author: Matt Macy <mmacy@mattmacy.io> Date: Sat May 26 00:06:31 2018 -0700 libpmc: fix pmu function signatures for non amd64 commit a2cb8bbc586c65d41f9b291430a2261ec67b59fe Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 22:38:11 2018 -0700 pmcstat: fix indentation of usage commit f686954b15ff56a833ac80404898977cb80a265b Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 22:19:49 2018 -0700 pmclog(3): add callchain and pmcallocatedyn, remove pcsample commit 73e13a0d2e9498c81c150d14d022050cee7511bb Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 22:19:00 2018 -0700 pmclog.h: GC pcsample field commit 3e93ffd65da641fa657539dad3c48e281f8b5798 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 22:05:57 2018 -0700 hwpmc: make Intel core CPUs use external event tables commit 634f5fae1e1644ac324003136c66cd9c619d1c93 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 22:00:06 2018 -0700 pmclog: update log record types, bump PMC_MAJOR - explicitly make log record types a multiple of 8 bytes - hook in pmu event types for pmc_allocate records - remove references to no longer PCSAMPLE record commit 83d84fcd2d65bdf6ddcb2e155a22f0cfa2a9c225 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 21:52:10 2018 -0700 libpmc: add support for having vendor table driven pmc_allocate commit 9e6ad63c40c2fce8404847ace5078ca6cb33a736 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 19:11:33 2018 -0700 hwpmc_core: add accessors for EVSEL & UMASK, make IAP_UMASK useful to user commit 859dceb93daa6419a48c794db99b6758e5b041c9 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 19:09:45 2018 -0700 pmcstat: update usage and man page as well as make -L consistent with pmccontrol commit 79c7d8597e28c2eb13f5f9113e65ec2792ca57b1 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 18:07:03 2018 -0700 pmu_util: add support for all current intel event keywords commit d8089c7f6a6c8527f38324252b1ffb47004694c6 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 17:45:00 2018 -0700 add description for new arguments commit 058336740bab53c62ec88a3a026ea848cf3878c6 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 17:38:15 2018 -0700 libpmc: move pmu_events table and pmu_utils out of libpmcstat so that they can be used by pmc_allocate commit 049b66b382e2f833c3f47bc8df9e750cb265709f Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 16:12:41 2018 -0700 pmcstat: hook pmu_events counter description utility routines in commit f5e01e7b37a691dc045e1aa16b3ebdd162515de8 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 16:11:59 2018 -0700 pmu_events: add utility routines for listing counters and their descriptions commit cba4d4f8907f772279f86f18f915e0d74d33ac56 Author: Matt Macy <mmacy@mattmacy.io> Date: Fri May 25 16:09:50 2018 -0700 pmu-events: expand out skylake regex to simplify string matches
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0b5dc7f6 |
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23-May-2018 |
Matt Macy <mmacy@FreeBSD.org> |
hwpmc: add thread id field to callchain and context switch records to allow filtering on thread in post-processing. To generate stacks for just ${THREADID}: pmcstat -R ${PREFIX}.pmcstat -L ${THREADID} -z100 -G ${PREFIX}.stacks Sponsored by: Limelight Networks
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167b8a60 |
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16-Jan-2018 |
Ruslan Bukin <br@FreeBSD.org> |
Fix bug: increment the value of pmcstat_npmcs instead of moving pointer to the next int position. Bug was introduced in r324959 ("Extract a set of pmcstat functions and interfaces to the new internal library -- libpmcstat.") This fixes pmcstat top mode (-T) operation. Example: pmcstat -n1 -S clock.hard -T Reported by: Peter Holm <peter@holm.cc> Sponsored by: DARPA, AFRL
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d27927f7 |
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24-Oct-2017 |
Ruslan Bukin <br@FreeBSD.org> |
Extract a set of pmcstat functions and interfaces to the new internal library -- libpmcstat. This includes PMC logging module, symbols lookup functions, ELF parsing, process management, PMC attachment, etc. This allows to reuse code while building new hwpmc(4)-based applications. Also add pmcstat_symbol_search_by_name() function that allows to find mapped IP range for a given function name. Reviewed by: kib Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D12718
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