Changes in Makefile

4c02c7e0 - perf tools powerpc: Use generic syscall table scripts

Thu, 09 Jan 2025 02:36:29 +0000

perf tools powerpc: Use generic syscall table scriptsUse the generic scripts to generate headers from the syscall tableinstead of the custom ones for powerpc.Signed-off-by: Charlie Jenkins Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Arnd Bergmann Cc: Christian Brauner Cc: Guo Ren Cc: Günther Noack Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Jonathan Corbet Cc: Leo Yan Cc: Mark Rutland Cc: Mickaël Salaün Cc: Mike Leach Cc: Namhyung Kim Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Stephen Rothwell Cc: Will Deacon Link: https://lore.kernel.org/r/20250108-perf_syscalltbl-v6-14-7543b5293098@rivosinc.comLink: https://lore.kernel.org/lkml/20250110100505.78d81450@canb.auug.org.au[ Stephen Rothwell noticed on linux-next that the powerpc build for perf was broken and ...]Link: https://lore.kernel.org/lkml/20250109-perf_powerpc_spu-v1-1-c097fc43737e@rivosinc.com[ ... Charlie fixed it up and asked for it to be squashed to avoid breaking bisection. ]Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

ddbfb6f2 - perf build: Remove PERF_HAVE_DWARF_REGS

Fri, 08 Nov 2024 23:46:05 +0000

perf build: Remove PERF_HAVE_DWARF_REGSPERF_HAVE_DWARF_REGS was true when an architecture had a dwarf-regs.cfile. There are no more architecture dwarf-regs.c files, selection isdone using constants from the ELF file rather than conditionalcompilation. When removing PERF_HAVE_DWARF_REGS was the only variablein the Makefile, remove the Makefile.Add missing SPDX for RISC-V Makefile.Reviewed-by: Masami Hiramatsu (Google) Signed-off-by: Ian Rogers Cc: Anup Patel Cc: Yang Jihong Cc: Palmer Dabbelt Cc: David S. Miller Cc: Albert Ou Cc: Shenlin Liang Cc: Nick Terrell Cc: Guilherme Amadio Cc: Steinar H. Gunderson Cc: Changbin Du Cc: Alexander Lobakin Cc: Przemek Kitszel Cc: Huacai Chen Cc: Guo Ren Cc: Masahiro Yamada Cc: Will Deacon Cc: James Clark Cc: Mike Leach Cc: Chen Pei Cc: Leo Yan Cc: Oliver Upton Cc: Aditya Gupta Cc: Kajol Jain Cc: Athira Rajeev Cc: linux-arm-kernel@lists.infradead.orgCc: linux-riscv@lists.infradead.orgCc: Bibo Mao Cc: John Garry Cc: Atish Patra Cc: Dima Kogan Cc: Paul Walmsley Cc: Dr. David Alan Gilbert Cc: linux-csky@vger.kernel.orgLink: https://lore.kernel.org/r/20241108234606.429459-21-irogers@google.comSigned-off-by: Namhyung Kim List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

6ac75289 - perf dwarf-regs: Remove PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET

Fri, 08 Nov 2024 23:45:47 +0000

perf dwarf-regs: Remove PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSETPERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET was used for BPF prologuesupport which was removed in Commit 3d6dfae88917 ("perf parse-events:Remove BPF event support"). The code is no longer used so remove.Remove the offset from various dwarf-regs.c tables and the dependenceon ptrace.h. Rename structs starting pt_ as the ptrace derived offset isnow removed.Reviewed-by: Masami Hiramatsu (Google) Signed-off-by: Ian Rogers Cc: Anup Patel Cc: Yang Jihong Cc: Palmer Dabbelt Cc: David S. Miller Cc: Albert Ou Cc: Shenlin Liang Cc: Nick Terrell Cc: Guilherme Amadio Cc: Steinar H. Gunderson Cc: Changbin Du Cc: Alexander Lobakin Cc: Przemek Kitszel Cc: Huacai Chen Cc: Guo Ren Cc: Masahiro Yamada Cc: Will Deacon Cc: James Clark Cc: Mike Leach Cc: Chen Pei Cc: Leo Yan Cc: Oliver Upton Cc: Aditya Gupta Cc: Kajol Jain Cc: Athira Rajeev Cc: linux-arm-kernel@lists.infradead.orgCc: linux-riscv@lists.infradead.orgCc: Bibo Mao Cc: John Garry Cc: Atish Patra Cc: Dima Kogan Cc: Paul Walmsley Cc: Dr. David Alan Gilbert Cc: linux-csky@vger.kernel.orgLink: https://lore.kernel.org/r/20241108234606.429459-3-irogers@google.comSigned-off-by: Namhyung Kim List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

54a13685 - perf build: Rename NO_DWARF to NO_LIBDW

Thu, 17 Oct 2024 00:13:45 +0000

perf build: Rename NO_DWARF to NO_LIBDWNO_DWARF could mean more than NO_LIBDW support, in particular nolibunwind support. Rename to be more intention revealing.Signed-off-by: Ian Rogers Reviewed-by: Masami Hiramatsu (Google) Acked-by: Namhyung Kim Tested-by: Leo Yan Cc: Anup Patel Cc: Yang Jihong Cc: Palmer Dabbelt Cc: David S. Miller Cc: Albert Ou Cc: Shenlin Liang Cc: Nick Terrell Cc: Guilherme Amadio Cc: Steinar H. Gunderson Cc: Changbin Du Cc: Alexander Lobakin Cc: Przemek Kitszel Cc: Huacai Chen Cc: Guo Ren Cc: Masahiro Yamada Cc: Will Deacon Cc: James Clark Cc: Mike Leach Cc: Chen Pei Cc: Leo Yan Cc: Oliver Upton Cc: Aditya Gupta Cc: Kajol Jain Cc: Athira Rajeev Cc: linux-arm-kernel@lists.infradead.orgCc: linux-riscv@lists.infradead.orgCc: Bibo Mao Cc: John Garry Cc: Atish Patra Cc: Dima Kogan Cc: Paul Walmsley Cc: Dr. David Alan Gilbert Cc: linux-csky@vger.kernel.orgLink: https://lore.kernel.org/r/20241017001354.56973-3-irogers@google.comSigned-off-by: Namhyung Kim List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

c2bd08ba - treewide: remove meaningless assignments in Makefiles

Wed, 21 Feb 2024 13:42:01 +0000

treewide: remove meaningless assignments in MakefilesIn Makefiles, $(error ), $(warning ), and $(info ) expand to the emptystring, as explained in the GNU Make manual [1]: "The result of the expansion of this function is the empty string."Therefore, they are no-op except for logging purposes.$(shell ...) expands to the output of the command. It expands to theempty string when the command does not print anything to stdout.Hence, $(shell mkdir ...) is no-op except for creating the directory.Remove meaningless assignments.[1]: https://www.gnu.org/software/make/manual/make.html#Make-Control-FunctionsSigned-off-by: Masahiro Yamada Reviewed-by: Arnaldo Carvalho de Melo Reviewed-by: Ian Rogers Link: https://lore.kernel.org/r/20240221134201.2656908-1-masahiroy@kernel.orgSigned-off-by: Namhyung Kim Cc: Mark Rutland Cc: Peter Zijlstra Cc: Adrian Hunter Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Alexander Shishkin Cc: Ingo Molnar Cc: linux-kbuild@vger.kernel.orgCc: linux-kernel@vger.kernel.orgCc: linux-perf-users@vger.kernel.org List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

9bad32b2 - perf powerpc: Move syscall.tbl check to check-headers.sh

Fri, 18 Dec 2020 07:59:21 +0000

perf powerpc: Move syscall.tbl check to check-headers.shIt is better to check syscall.tbl for powerpc in check-headers.sh, it issimilar with commit c9b51a017065 ("perf tools: Move syscall_64.tbl checkinto check-headers.sh").Signed-off-by: Tiezhu Yang Reviewed-by: Naveen N. Rao Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Xuefeng Li Link: http://lore.kernel.org/lkml/1608278364-6733-2-git-send-email-yangtiezhu@loongson.cnSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

02061318 - perf powerpc: Rework syscall table generation

Thu, 10 Jan 2019 09:49:35 +0000

perf powerpc: Rework syscall table generationCommit aff850393200 ("powerpc: add system call table generationsupport") changed how systemcall table is generated for powerpc.Incorporate these changes into perf as well.Committer testing: $ podman run --entrypoint=/bin/sh --privileged -v /home/acme/git:/git --rm -ti docker.io/acmel/linux-perf-tools-build-ubuntu:18.04-x-powerpc64 perfbuilder@d7a7af166a80:/git/perf$ head -2 /etc/os-release NAME="Ubuntu" VERSION="18.04.1 LTS (Bionic Beaver)" perfbuilder@d7a7af166a80:/git/perf$ perfbuilder@d7a7af166a80:/git/perf$ make ARCH=powerpc CROSS_COMPILE=powerpc64-linux-gnu- EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf make: Entering directory '/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build HOSTCC /tmp/build/perf/fixdep.o HOSTLD /tmp/build/perf/fixdep-in.o LINK /tmp/build/perf/fixdep Warning: Kernel ABI header at 'tools/include/uapi/linux/mman.h' differs from latest version at 'include/uapi/linux/mman.h' diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h sh: 1: command: Illegal option -c Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... gtk2: [ OFF ] ... libaudit: [ OFF ] ... libbfd: [ OFF ] ... libelf: [ on ] ... libnuma: [ OFF ] ... numa_num_possible_cpus: [ OFF ] ... libperl: [ OFF ] ... libpython: [ OFF ] ... libslang: [ OFF ] ... libcrypto: [ OFF ] ... libunwind: [ OFF ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ OFF ] ... get_cpuid: [ OFF ] ... bpf: [ on ] Makefile.config:445: No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev Makefile.config:491: No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR Makefile.config:583: No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev Makefile.config:598: slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev Makefile.config:612: GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev Makefile.config:639: Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev Makefile.config:666: No python interpreter was found: disables Python support - please install python-devel/python-dev Makefile.config:721: No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling Makefile.config:750: No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev Makefile.config:763: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev Makefile.config:814: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev Makefile.config:840: No alternatives command found, you need to set JDIR= to point to the root of your Java directory GEN /tmp/build/perf/common-cmds.h CC /tmp/build/perf/util/syscalltbl.o LD /tmp/build/perf/libperf-in.o AR /tmp/build/perf/libperf.a LINK /tmp/build/perf/perf make: Leaving directory '/git/linux/tools/perf' perfbuilder@d7a7af166a80:/git/perf$ head /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c static const char *syscalltbl_powerpc_64[] = { [0] = "restart_syscall", [1] = "exit", [2] = "fork", [3] = "read", [4] = "write", [5] = "open", [6] = "close", [7] = "waitpid", [8] = "creat", perfbuilder@d7a7af166a80:/git/perf$ tail /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c [381] = "pwritev2", [382] = "kexec_file_load", [383] = "statx", [384] = "pkey_alloc", [385] = "pkey_free", [386] = "pkey_mprotect", [387] = "rseq", [388] = "io_pgetevents", }; #define SYSCALLTBL_POWERPC_64_MAX_ID 388 perfbuilder@d7a7af166a80:/git/perf$ head /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c static const char *syscalltbl_powerpc_32[] = { [0] = "restart_syscall", [1] = "exit", [2] = "fork", [3] = "read", [4] = "write", [5] = "open", [6] = "close", [7] = "waitpid", [8] = "creat", perfbuilder@d7a7af166a80:/git/perf$ tail /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c [381] = "pwritev2", [382] = "kexec_file_load", [383] = "statx", [384] = "pkey_alloc", [385] = "pkey_free", [386] = "pkey_mprotect", [387] = "rseq", [388] = "io_pgetevents", }; #define SYSCALLTBL_POWERPC_32_MAX_ID 388 perfbuilder@d7a7af166a80:/git/perf$Signed-off-by: Ravi Bangoria Reported-by: Arnaldo Carvalho de Melo Tested-by: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Michael Ellerman Cc: Namhyung Kim Cc: linuxppc-dev@lists.ozlabs.orgLink: http://lkml.kernel.org/r/20190110094936.3132-1-ravi.bangoria@linux.ibm.comSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

8e2ff72a - perf powerpc: Generate system call table from asm/unistd.h

Mon, 29 Jan 2018 08:34:16 +0000

perf powerpc: Generate system call table from asm/unistd.hThis should speed up accessing new system calls introduced with thekernel rather than waiting for libaudit updates to include them.Signed-off-by: Ravi Bangoria Cc: Alexander Shishkin Cc: Hendrik Brueckner Cc: Jiri Olsa Cc: Michael Ellerman Cc: Namhyung Kim Cc: Thomas Richter Cc: linuxppc-dev@lists.ozlabs.orgLink: http://lkml.kernel.org/r/20180129083417.31240-3-ravi.bangoria@linux.vnet.ibm.com[ Made it generate syscall_32.c as well to fix the build on 32-bit ppc ]Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'SPDX license identifier. The SPDX identifier is a legally bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines).All documentation files were explicitly excluded.The following heuristics were used to determine which SPDX licenseidentifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time.In total, over 70 hours of logged manual review was done on thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

4679bcca - perf tools powerpc: Add support for generating bpf prologue

Thu, 05 May 2016 15:23:19 +0000

perf tools powerpc: Add support for generating bpf prologueGeneralize existing macros to serve the purpose.Signed-off-by: Naveen N. Rao Cc: Ian Munsie Cc: Masami Hiramatsu Cc: Michael Ellerman Cc: Wang Nan Cc: linuxppc-dev@lists.ozlabs.orgLink: http://lkml.kernel.org/r/1462461799-17518-1-git-send-email-naveen.n.rao@linux.vnet.ibm.comSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

e12b202f - perf jitdump: Build only on supported archs

Thu, 10 Mar 2016 16:41:13 +0000

perf jitdump: Build only on supported archsBuild jitdump only on architectures defined in util/genelf.h file, to avoidbreaking the build on such arches.Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Andi Kleen Cc: Borislav Petkov Cc: Colin Ian King Cc: David Ahern Cc: Davidlohr Bueso Cc: He Kuang Cc: Mel Gorman Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Steven Rostedt Cc: Wang Nan Link: http://lkml.kernel.org/r/20160310164113.GA11357@krava.redhat.comSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

066d3593 - perf kvm/powerpc: Port perf kvm stat to powerpc

Thu, 28 Jan 2016 06:33:06 +0000

perf kvm/powerpc: Port perf kvm stat to powerpcperf kvm can be used to analyze guest exit reasons. This support alreadyexists in x86. Hence, porting it to powerpc. - To trace KVM events : perf kvm stat record If many guests are running, we can track for a specific guest by using --pid as in : perf kvm stat record --pid - To see the results : perf kvm stat reportThe result shows the number of exits (from the guest context tohost/hypervisor context) grouped by their respective exit reasons withtheir frequency.Since, different powerpc machines have different KVM tracepoints, thispatch discovers the available tracepoints dynamically and accordinglylooks for them. If any single tracepoint is not present, this supportwon't be enabled for reporting. To record, this will fail if any of theevents we are looking to record isn't available. Right now, its onlysupported on PowerPC Book3S_HV architectures.To analyze the different exits, group them and present them (in a slightdescriptive way) to the user, we need a mapping between the "exit code"(dumped in the kvm_guest_exit tracepoint data) and to its relatedInterrupt vector description (exit reason). This patch adds this mappingin book3s_hv_exits.h.It records on two available KVM tracepoints for book3s_hv:"kvm_hv:kvm_guest_exit" and "kvm_hv:kvm_guest_enter".Here is a sample o/p: # pgrep qemu19378605152 Guests are running on the host. # perf kvm stat record -a^C[ perf record: Woken up 1 times to write data ][ perf record: Captured and wrote 4.153 MB perf.data.guest (39624samples) ] # perf kvm stat report -p 60515Analyze events for pid(s) 60515, all VCPUs: VM-EXIT Samples Samples% Time% MinTime MaxTime Avg time SYSCALL 9141 63.67% 7.49% 1.26us 5782.39us 9.87us (+- 6.46%)H_DATA_STORAGE 4114 28.66% 5.07% 1.72us 4597.68us 14.84us (+-20.06%)HV_DECREMENTER 418 2.91% 4.26% 0.70us 30002.22us 122.58us (+-70.29%) EXTERNAL 392 2.73% 0.06% 0.64us 104.10us 1.94us (+-18.83%)RETURN_TO_HOST 287 2.00% 83.11% 1.53us 124240.15us 3486.52us (+-16.81%)H_INST_STORAGE 5 0.03% 0.00% 1.88us 3.73us 2.39us (+-14.20%)Total Samples:14357, Total events handled time:1203918.42us.Signed-off-by: Hemant Kumar Cc: Alexander Yarygin Cc: David Ahern Cc: Michael Ellerman Cc: Naveen N. Rao Cc: Paul Mackerras Cc: Scott Wood Cc: Srikar Dronamraju Cc: linuxppc-dev@lists.ozlabs.orgLink: http://lkml.kernel.org/r/1453962787-15376-3-git-send-email-hemant@linux.vnet.ibm.comSigned-off-by: Srikar Dronamraju Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

07a39e11 - perf build: Add arch powerpc objects building

Tue, 30 Dec 2014 13:10:57 +0000

perf build: Add arch powerpc objects buildingMove the powerpc arch objects building under build framework to beincluded in the libperf build object.Signed-off-by: Jiri Olsa Tested-by: Sukadev Bhattiprolu Tested-by: Will Deacon Cc: Alexis Berlemont Cc: Borislav Petkov Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-nqrtlipvjptdyjfuzlnegqgu@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

65ccb4fa - perf tools powerpc: Fix build issue when DWARF support is disabled

Mon, 25 Aug 2014 08:25:06 +0000

perf tools powerpc: Fix build issue when DWARF support is disabledThe powerpc skip callchain code uses DWARF, so we must disable it ifDWARF is disabled.Signed-off-by: Anton Blanchard Cc: Ingo Molnar Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Sukadev Bhattiprolu Link: http://lkml.kernel.org/r/20140825182506.2be6512d@krytenSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

a60335ba - perf tools powerpc: Adjust callchain based on DWARF debug info

Wed, 25 Jun 2014 15:49:03 +0000

perf tools powerpc: Adjust callchain based on DWARF debug infoWhen saving the callchain on Power, the kernel conservatively saves excessentries in the callchain. A few of these entries are needed in some casesbut not others. We should use the DWARF debug information to determinewhen the entries are needed.Eg: the value in the link register (LR) is needed only when it holds thereturn address of a function. At other times it must be ignored.If the unnecessary entries are not ignored, we end up with duplicate arcsin the call-graphs.Use the DWARF debug information to determine if any callchain entriesshould be ignored when building call-graphs.Callgraph before the patch: 14.67% 2234 sprintft libc-2.18.so [.] __random | --- __random | |--61.12%-- __random | | | |--97.15%-- rand | | do_my_sprintf | | main | | generic_start_main.isra.0 | | __libc_start_main | | 0x0 | | | --2.85%-- do_my_sprintf | main | generic_start_main.isra.0 | __libc_start_main | 0x0 | --38.88%-- rand | |--94.01%-- rand | do_my_sprintf | main | generic_start_main.isra.0 | __libc_start_main | 0x0 | --5.99%-- do_my_sprintf main generic_start_main.isra.0 __libc_start_main 0x0Callgraph after the patch: 14.67% 2234 sprintft libc-2.18.so [.] __random | --- __random | |--95.93%-- rand | do_my_sprintf | main | generic_start_main.isra.0 | __libc_start_main | 0x0 | --4.07%-- do_my_sprintf main generic_start_main.isra.0 __libc_start_main 0x0TODO: For split-debug info objects like glibc, we can only determine the call-frame-address only when both .eh_frame and .debug_info sections are available. We should be able to determin the CFA even without the .eh_frame section.Fix suggested by Anton Blanchard.Thanks to valuable input on DWARF debug information from Ulrich Weigand.Reported-by: Maynard Johnson Tested-by: Maynard Johnson Signed-off-by: Sukadev Bhattiprolu Link: http://lkml.kernel.org/r/20140625154903.GA29607@us.ibm.comSigned-off-by: Jiri Olsa List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

fbe96f29 - perf tools: Make perf.data more self-descriptive (v8)

Fri, 30 Sep 2011 13:40:40 +0000

perf tools: Make perf.data more self-descriptive (v8)The goal of this patch is to include more information about the hostenvironment into the perf.data so it is more self-descriptive. Overtime,profiles are captured on various machines and it becomes hard to trackwhat was recorded, on what machine and when.This patch provides a way to solve this by extending the perf.data filewith basic information about the host machine. To add those extensions,we leverage the feature bits capabilities of the perf.data format. Thechange is backward compatible with existing perf.data files.We define the following useful new extensions: - HEADER_HOSTNAME: the hostname - HEADER_OSRELEASE: the kernel release number - HEADER_ARCH: the hw architecture - HEADER_CPUDESC: generic CPU description - HEADER_NRCPUS: number of online/avail cpus - HEADER_CMDLINE: perf command line - HEADER_VERSION: perf version - HEADER_TOPOLOGY: cpu topology - HEADER_EVENT_DESC: full event description (attrs) - HEADER_CPUID: easy-to-parse low level CPU identicationThe small granularity for the entries is to make it easier to extendwithout breaking backward compatiblity. Many entries are provided asASCII strings.Perf report/script have been modified to print the basic information aseasy-to-parse ASCII strings. Extended information about CPU and NUMAtopology may be requested with the -I option.Thanks to David Ahern for reviewing and testing the many versions ofthis patch. $ perf report --stdio # ======== # captured on : Mon Sep 26 15:22:14 2011 # hostname : quad # os release : 3.1.0-rc4-tip # perf version : 3.1.0-rc4 # arch : x86_64 # nrcpus online : 4 # nrcpus avail : 4 # cpudesc : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz # cpuid : GenuineIntel,6,15,11 # total memory : 8105360 kB # cmdline : /home/eranian/perfmon/official/tip/build/tools/perf/perf record date # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, id = { 29, 30, 31, # HEADER_CPU_TOPOLOGY info available, use -I to display # HEADER_NUMA_TOPOLOGY info available, use -I to display # ======== # ... $ perf report --stdio -I # ======== # captured on : Mon Sep 26 15:22:14 2011 # hostname : quad # os release : 3.1.0-rc4-tip # perf version : 3.1.0-rc4 # arch : x86_64 # nrcpus online : 4 # nrcpus avail : 4 # cpudesc : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz # cpuid : GenuineIntel,6,15,11 # total memory : 8105360 kB # cmdline : /home/eranian/perfmon/official/tip/build/tools/perf/perf record date # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, id = { 29, 30, 31, # sibling cores : 0-3 # sibling threads : 0 # sibling threads : 1 # sibling threads : 2 # sibling threads : 3 # node0 meminfo : total = 8320608 kB, free = 7571024 kB # node0 cpu list : 0-3 # ======== # ...Reviewed-by: David Ahern Tested-by: David Ahern Cc: David Ahern Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Robert Richter Cc: Andi Kleen Link: http://lkml.kernel.org/r/20110930134040.GA5575@quadSigned-off-by: Stephane Eranian [ committer notes: Use --show-info in the tools as was in the docs, rename perf_header_fprintf_info to perf_file_section__fprintf_info, fixup conflict with f69b64f7 "perf: Support setting the disassembler style" ]Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile

fead7960 - perf probe: Add PowerPC DWARF register number mappings

Tue, 20 Apr 2010 06:58:33 +0000

perf probe: Add PowerPC DWARF register number mappingsThis adds mappings from the register numbers from DWARF to theregister names used in the PowerPC Regs and Stack Access API. Thisallows perf probe to be used to record variable contents on PowerPC.This requires the functionality represented by the config symbolHAVE_REGS_AND_STACK_ACCESS_API in order to function, although it willcompile without it. That functionality is added for PowerPC in commit359e4284 ("powerpc: Add kprobe-based event tracer").Signed-off-by: Ian Munsie Acked-by: Masami Hiramatsu Signed-off-by: Paul Mackerras List of files: /linux-6.15/tools/perf/arch/powerpc/Makefile