Merge tag 'perf-tools-for-v7.4-1-2026-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next

Pull perf tool updates from Arnaldo Carvalho de Melo:

 - Support instruction tracking on arm64 for data type profiling,
   resolving stack, global, per-CPU and 'current' variable accesses, so
   that 'perf annotate --data-type' resolves types on arm64 the way it
   does on x86.

 - Port the Python scripts to the perf module and standalone execution,
   and improve the module: lazy sample callchains and event copies, GIL
   handling, better session/thread lookup, new treport, flamegraph and
   sqlite/postgres exporters.

 - Reenable and fix the attribute expectation test suite: per-PMU bit
   masks, other core PMUs' events, dummy tracking events, group checks
   and spelled out skip reasons.

 - perf trace: filter the target's tasks in BPF, open the BPF output
   event on every CPU, add an option to disable syscall augmentation and
   raise TRACE_AUG_MAX_BUF.

 - perf jitdump: harden record parsing, validating unwinding sizes and
   symbol names, byte-swapping debug entries via safe accessors and
   fixing frees on error paths.

 - perf annotate-data fixes: bound the member nesting recursion, resolve
   type DIEs in the debug file they came from, adjust the offset for
   flex-arrays and show the sample count in the data-type browser.

 - perf symbol and debug info: try linked debug files for DSOs, avoid
   repeated failing searches, set binary/symtab types for split
   kallsyms, JIT maps and the build-id cache, fix libbfd symbol loading.

 - perf config: serialize config file access with a mutex, add the
   DEFINE_MUTEX() and DO_ONCE() primitives and a robust process shared
   mutex, add the core.hybrid-merge option.

 - perf report: add --progress and --no-progress options.

 - perf mem: add a false sharing workload to 'perf test', request
   PERF_SAMPLE_CPU by default, use the IBS swfilt filter when available
   and decode L0 in the memory level.

 - perf test: take turns using the perf mlock budget in the mmaping
   tests, add the 'needs_mlock' suite flag, scope the probe based tests
   to their PID and make more tests non-exclusive.

 - perf vendor events intel: update events and metrics to TMA 5.2,
   refresh the event tables and fix umask encodings.

 - perf build: run shellcheck, mypy and pylint in parallel, make pylint
   opt-out with NO_PYLINT=1, fix clean and install dependencies.

 - Add a script and a 'make sync-headers' target to sync the tools/
   copies of kernel headers with the kernel sources, plus the resulting
   syncs of the cpufeatures, KVM, fs, mount, fcntl, socket, rtnetlink,
   if_addr and sound headers.

 - Fix cs-etm HW_ID mapping synthesis for raw trace, queue teardown
   leaks and duplicate v0 global mappings.

 - Add a 'perf bench atomic' benchmark for atomic operations.

 - Filter events before creating lock_stat in 'perf lock contention'.

 - Add a 'perf test' case for events re-armed with
   PERF_EVENT_IOC_REFRESH.

 - Fix memory leaks on 'perf c2c' output fields and add function view
   stdio coverage to its test.

 - Fix a NULL dereference resolving callchains in 'perf machine'.

 - Optimize the libdw fallback when DWARF is missing and try the symbol
   file first when checking for debuginfo.

 - Don't call eprintf() in pr_debugN() when not verbose.

 - Don't delete cumulative caller entries before the stat_acc decays in
   'perf report'.

 - Fix ring buffer cursor handling: keep the consumed cursor in forward
   mode and use the head selected by read_init.

 - Fix 'perf test mmap-basic' user rdpmc detection and only test
   userspace reading on supported platforms.

 - Build fixes: include sys/types.h for ssize_t, errno.h before kernel
   headers and fix jevents.py type annotations for mypy 2.x.

* tag 'perf-tools-for-v7.4-1-2026-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next: (425 commits)
  perf machine: Fix NULL deref in thread__resolve_callchain_sample()
  perf pmu-events: Fix jevents.py type annotations for mypy 2.x
  perf parse-events: Include errno.h before kernel headers
  perf print_insn: Include sys/types.h for ssize_t
  perf tests mmap-basic: Fix user rdpmc detection logic
  perf tests mmap-basic: Only test userspace reading on supported platforms
  perf mmap: Preserve the consumed cursor in forward mode
  perf mmap: Use the head selected by read_init
  perf hist: Do not delete cumulative caller entries before stat_acc decays
  perf debug: Avoid calling eprintf() in pr_debugN() when verbose < n
  perf libdw: Optimize fallback logic for missing DWARF
  tools headers: Sync KVM headers with the kernel sources
  tools headers: Sync UAPI sound/asound.h with the kernel sources
  tools headers: Sync UAPI linux/mount.h with the kernel sources
  tools headers: Sync UAPI linux/fs.h with the kernel sources
  tools headers: Sync UAPI linux/fcntl.h with the kernel sources
  tools headers: Sync linux/socket.h with the kernel sources
  tools arch x86: Sync the cpufeatures.h copy with the kernel sources
  tools headers UAPI: Sync linux/rtnetlink.h with the kernel sources
  tools headers UAPI: Sync linux/if_addr.h with the kernel sources
  ...

1 files changed, 0 insertions, 267 deletions

diff --git a/tools/perf/scripts/python/flamegraph.py b/tools/perf/scripts/python/flamegraph.py
deleted file mode 100755
index ad735990c5be..000000000000
--- a/tools/perf/scripts/python/flamegraph.py
+++ /dev/null
@@ -1,267 +0,0 @@
-# flamegraph.py - create flame graphs from perf samples
-# SPDX-License-Identifier: GPL-2.0
-#
-# Usage:
-#
-#     perf record -a -g -F 99 sleep 60
-#     perf script report flamegraph
-#
-# Combined:
-#
-#     perf script flamegraph -a -F 99 sleep 60
-#
-# Written by Andreas Gerstmayr <agerstmayr@redhat.com>
-# Flame Graphs invented by Brendan Gregg <bgregg@netflix.com>
-# Works in tandem with d3-flame-graph by Martin Spier <mspier@netflix.com>
-#
-# pylint: disable=missing-module-docstring
-# pylint: disable=missing-class-docstring
-# pylint: disable=missing-function-docstring
-
-import argparse
-import hashlib
-import io
-import json
-import os
-import subprocess
-import sys
-from typing import Dict, Optional, Union
-import urllib.request
-
-MINIMAL_HTML = """<head>
-  <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/d3-flamegraph.css">
-</head>
-<body>
-  <div id="chart"></div>
-  <script type="text/javascript" src="https://d3js.org/d3.v7.js"></script>
-  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/d3-flamegraph.min.js"></script>
-  <script type="text/javascript">
-  const stacks = [/** @flamegraph_json **/];
-  // Note, options is unused.
-  const options = [/** @options_json **/];
-
-  var chart = flamegraph();
-  d3.select("#chart")
-        .datum(stacks[0])
-        .call(chart);
-  </script>
-</body>
-"""
-
-# pylint: disable=too-few-public-methods
-class Node:
-    def __init__(self, name: str, libtype: str):
-        self.name = name
-        # "root" | "kernel" | ""
-        # "" indicates user space
-        self.libtype = libtype
-        self.value: int = 0
-        self.children: list[Node] = []
-
-    def to_json(self) -> Dict[str, Union[str, int, list[Dict]]]:
-        return {
-            "n": self.name,
-            "l": self.libtype,
-            "v": self.value,
-            "c": [x.to_json() for x in self.children]
-        }
-
-
-class FlameGraphCLI:
-    def __init__(self, args):
-        self.args = args
-        self.stack = Node("all", "root")
-
-    @staticmethod
-    def get_libtype_from_dso(dso: Optional[str]) -> str:
-        """
-        when kernel-debuginfo is installed,
-        dso points to /usr/lib/debug/lib/modules/*/vmlinux
-        """
-        if dso and (dso == "[kernel.kallsyms]" or dso.endswith("/vmlinux")):
-            return "kernel"
-
-        return ""
-
-    @staticmethod
-    def find_or_create_node(node: Node, name: str, libtype: str) -> Node:
-        for child in node.children:
-            if child.name == name:
-                return child
-
-        child = Node(name, libtype)
-        node.children.append(child)
-        return child
-
-    def process_event(self, event) -> None:
-        # ignore events where the event name does not match
-        # the one specified by the user
-        if self.args.event_name and event.get("ev_name") != self.args.event_name:
-            return
-
-        pid = event.get("sample", {}).get("pid", 0)
-        # event["dso"] sometimes contains /usr/lib/debug/lib/modules/*/vmlinux
-        # for user-space processes; let's use pid for kernel or user-space distinction
-        if pid == 0:
-            comm = event["comm"]
-            libtype = "kernel"
-        else:
-            comm = f"{event['comm']} ({pid})"
-            libtype = ""
-        node = self.find_or_create_node(self.stack, comm, libtype)
-
-        if "callchain" in event:
-            for entry in reversed(event["callchain"]):
-                name = entry.get("sym", {}).get("name", "[unknown]")
-                libtype = self.get_libtype_from_dso(entry.get("dso"))
-                node = self.find_or_create_node(node, name, libtype)
-        else:
-            name = event.get("symbol", "[unknown]")
-            libtype = self.get_libtype_from_dso(event.get("dso"))
-            node = self.find_or_create_node(node, name, libtype)
-        node.value += 1
-
-    def get_report_header(self) -> str:
-        if self.args.input == "-":
-            # when this script is invoked with "perf script flamegraph",
-            # no perf.data is created and we cannot read the header of it
-            return ""
-
-        try:
-            # if the file name other than perf.data is given,
-            # we read the header of that file
-            if self.args.input:
-                output = subprocess.check_output(["perf", "report", "--header-only",
-                                                  "-i", self.args.input])
-            else:
-                output = subprocess.check_output(["perf", "report", "--header-only"])
-
-            result = output.decode("utf-8")
-            if self.args.event_name:
-                result += "\nFocused event: " + self.args.event_name
-            return result
-        except Exception as err:  # pylint: disable=broad-except
-            print(f"Error reading report header: {err}", file=sys.stderr)
-            return ""
-
-    def trace_end(self) -> None:
-        stacks_json = json.dumps(self.stack, default=lambda x: x.to_json())
-
-        if self.args.format == "html":
-            report_header = self.get_report_header()
-            options = {
-                "colorscheme": self.args.colorscheme,
-                "context": report_header
-            }
-            options_json = json.dumps(options)
-
-            template_md5sum = None
-            if self.args.format == "html":
-                if os.path.isfile(self.args.template):
-                    template = f"file://{self.args.template}"
-                else:
-                    if not self.args.allow_download:
-                        print(f"""Warning: Flame Graph template '{self.args.template}'
-does not exist. To avoid this please install a package such as the
-js-d3-flame-graph or libjs-d3-flame-graph, specify an existing flame
-graph template (--template PATH) or use another output format (--format
-FORMAT).""",
-                              file=sys.stderr)
-                        if self.args.input == "-":
-                            print(
-"""Not attempting to download Flame Graph template as script command line
-input is disabled due to using live mode. If you want to download the
-template retry without live mode. For example, use 'perf record -a -g
--F 99 sleep 60' and 'perf script report flamegraph'. Alternatively,
-download the template from:
-https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/d3-flamegraph-base.html
-and place it at:
-/usr/share/d3-flame-graph/d3-flamegraph-base.html""",
-                                  file=sys.stderr)
-                            sys.exit(1)
-                        s = None
-                        while s not in ["y", "n"]:
-                            s = input("Do you wish to download a template from cdn.jsdelivr.net?" +
-                                      "(this warning can be suppressed with --allow-download) [yn] "
-                                      ).lower()
-                        if s == "n":
-                            sys.exit(1)
-                    template = ("https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/"
-                                "d3-flamegraph-base.html")
-                    template_md5sum = "143e0d06ba69b8370b9848dcd6ae3f36"
-
-            try:
-                with urllib.request.urlopen(template) as url_template:
-                    output_str = "".join([
-                        l.decode("utf-8") for l in url_template.readlines()
-                    ])
-            except Exception as err:
-                print(f"Error reading template {template}: {err}\n"
-                      "a minimal flame graph will be generated", file=sys.stderr)
-                output_str = MINIMAL_HTML
-                template_md5sum = None
-
-            if template_md5sum:
-                download_md5sum = hashlib.md5(output_str.encode("utf-8")).hexdigest()
-                if download_md5sum != template_md5sum:
-                    s = None
-                    while s not in ["y", "n"]:
-                        s = input(f"""Unexpected template md5sum.
-{download_md5sum} != {template_md5sum}, for:
-{output_str}
-continue?[yn] """).lower()
-                    if s == "n":
-                        sys.exit(1)
-
-            output_str = output_str.replace("/** @options_json **/", options_json)
-            output_str = output_str.replace("/** @flamegraph_json **/", stacks_json)
-
-            output_fn = self.args.output or "flamegraph.html"
-        else:
-            output_str = stacks_json
-            output_fn = self.args.output or "stacks.json"
-
-        if output_fn == "-":
-            with io.open(sys.stdout.fileno(), "w", encoding="utf-8", closefd=False) as out:
-                out.write(output_str)
-        else:
-            print(f"dumping data to {output_fn}")
-            try:
-                with io.open(output_fn, "w", encoding="utf-8") as out:
-                    out.write(output_str)
-            except IOError as err:
-                print(f"Error writing output file: {err}", file=sys.stderr)
-                sys.exit(1)
-
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser(description="Create flame graphs.")
-    parser.add_argument("-f", "--format",
-                        default="html", choices=["json", "html"],
-                        help="output file format")
-    parser.add_argument("-o", "--output",
-                        help="output file name")
-    parser.add_argument("--template",
-                        default="/usr/share/d3-flame-graph/d3-flamegraph-base.html",
-                        help="path to flame graph HTML template")
-    parser.add_argument("--colorscheme",
-                        default="blue-green",
-                        help="flame graph color scheme",
-                        choices=["blue-green", "orange"])
-    parser.add_argument("-i", "--input",
-                        help=argparse.SUPPRESS)
-    parser.add_argument("--allow-download",
-                        default=False,
-                        action="store_true",
-                        help="allow unprompted downloading of HTML template")
-    parser.add_argument("-e", "--event",
-                        default="",
-                        dest="event_name",
-                        type=str,
-                        help="specify the event to generate flamegraph for")
-
-    cli_args = parser.parse_args()
-    cli = FlameGraphCLI(cli_args)
-
-    process_event = cli.process_event
-    trace_end = cli.trace_end