[v4,00/19] Support dynamic opening of capstone/llvm remove BUILD_NONDISTRO

Message ID	20250417230740.86048-1-irogers@google.com (mailing list archive)
Headers	show Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBCEA214235 for <bpf@vger.kernel.org>; Thu, 17 Apr 2025 23:07:54 +0000 (UTC) Date: Thu, 17 Apr 2025 16:07:21 -0700 Precedence: bulk Mime-Version: 1.0 Message-ID: <20250417230740.86048-1-irogers@google.com> Subject: [PATCH v4 00/19] Support dynamic opening of capstone/llvm remove BUILD_NONDISTRO From: Ian Rogers <irogers@google.com> To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>, Kan Liang <kan.liang@linux.intel.com>, Nathan Chancellor <nathan@kernel.org>, Nick Desaulniers <nick.desaulniers+lkml@gmail.com>, Bill Wendling <morbo@google.com>, Justin Stitt <justinstitt@google.com>, Aditya Gupta <adityag@linux.ibm.com>, "Steinar H. Gunderson" <sesse@google.com>, Charlie Jenkins <charlie@rivosinc.com>, Changbin Du <changbin.du@huawei.com>, "Masami Hiramatsu (Google)" <mhiramat@kernel.org>, James Clark <james.clark@linaro.org>, Kajol Jain <kjain@linux.ibm.com>, Athira Rajeev <atrajeev@linux.vnet.ibm.com>, Li Huafei <lihuafei1@huawei.com>, Dmitry Vyukov <dvyukov@google.com>, Andi Kleen <ak@linux.intel.com>, Chaitanya S Prakash <chaitanyas.prakash@arm.com>, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev, Song Liu <song@kernel.org>, bpf@vger.kernel.org Content-Type: text/plain; charset="UTF-8"
Series	Support dynamic opening of capstone/llvm remove BUILD_NONDISTRO \| expand [v4,00/19] Support dynamic opening of capstone/llvm remove BUILD_NONDISTRO [v4,01/19] perf build: Remove libtracefs configuration [v4,02/19] perf map: Constify objdump offset/address conversion APIs [v4,03/19] perf capstone: Move capstone functionality into its own file [v4,04/19] perf llvm: Move llvm functionality into its own file [v4,05/19] perf capstone: Remove open_capstone_handle [v4,06/19] perf capstone: Support for dlopen-ing libcapstone.so [v4,07/19] perf llvm: Support for dlopen-ing libLLVM.so [v4,08/19] perf llvm: Mangle libperf-llvm.so function names [v4,09/19] perf dso: Move read_symbol from llvm/capstone to dso [v4,10/19] perf dso: Support BPF programs in dso__read_symbol [v4,11/19] perf llvm: Disassemble cleanup [v4,12/19] perf dso: Clean up read_symbol error handling [v4,13/19] perf build: Remove libbfd support [v4,14/19] perf build: Remove libiberty support [v4,15/19] perf build: Remove unused defines [v4,16/19] perf disasm: Remove disasm_bpf [v4,17/19] perf disasm: Make ins__scnprintf and ins__is_nop static [v4,18/19] perf srcline: Fallback between addr2line implementations [v4,19/19] perf disasm: Remove unused evsel from annotate_args

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20250417230740.86048-1-irogers@google.com (mailing list archive)

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Date: Thu, 17 Apr 2025 16:07:21 -0700
Precedence: bulk
Mime-Version: 1.0
Message-ID: <20250417230740.86048-1-irogers@google.com>
Subject: [PATCH v4 00/19] Support dynamic opening of capstone/llvm remove
 BUILD_NONDISTRO
From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
 Namhyung Kim <namhyung@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
 Jiri Olsa <jolsa@kernel.org>,
	Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>,
	Kan Liang <kan.liang@linux.intel.com>, Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
 Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>, Aditya Gupta <adityag@linux.ibm.com>,
	"Steinar H. Gunderson" <sesse@google.com>,
 Charlie Jenkins <charlie@rivosinc.com>,
	Changbin Du <changbin.du@huawei.com>,
 "Masami Hiramatsu (Google)" <mhiramat@kernel.org>,
	James Clark <james.clark@linaro.org>, Kajol Jain <kjain@linux.ibm.com>,
	Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
 Li Huafei <lihuafei1@huawei.com>,
	Dmitry Vyukov <dvyukov@google.com>, Andi Kleen <ak@linux.intel.com>,
	Chaitanya S Prakash <chaitanyas.prakash@arm.com>,
 linux-kernel@vger.kernel.org,
	linux-perf-users@vger.kernel.org, llvm@lists.linux.dev,
	Song Liu <song@kernel.org>, bpf@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"

Series

Support dynamic opening of capstone/llvm remove BUILD_NONDISTRO | expand

Message

Ian Rogers April 17, 2025, 11:07 p.m. UTC

Linking against libcapstone and libLLVM can be a significant increase
in dependencies and file size if building statically. For something
like `perf record` the disassembler and addr2line functionality won't
be used. Support dynamically loading these libraries using dlopen and
then calling the appropriate functions found using dlsym.

BUILD_NONDISTRO is used to build perf against the license incompatible
libbfd and libiberty libraries. As this has been opt-in for nearly 2
years, commit dd317df07207 ("perf build: Make binutil libraries opt
in"), remove the code to simplify the code base.

The patch series:
1) does some initial clean up;
2) moves the capstone and LLVM code to their own C files,
3) simplifies a little the capstone code;
4) adds perf_ variants of the functions that will either directly call
   the function or use dlsym to discover it;
5) adds BPF JIT disassembly support to LLVM and capstone disassembly;
6) removes the BUILD_NONDISTRO code, reduces scope and removes what's possible;
7) adds fallback to srcline's addr2line so that llvm_addr2line is
   tried first and then the forked command tried next, moving the code
   for forking out of the main srcline.c file in the process.

The addr2line LLVM functionality is written in C++. To avoid linking
against libLLVM for this, a new LIBLLVM_DYNAMIC option is added where
the C++ code with the libLLVM dependency will be built into a
libperf-llvm.so and that dlsym-ed and called against. Ideally LLVM
would extend their C API to avoid this.

The libbfd BPF disassembly supported source lines, this wasn't ported
to the capstone and LLVM disassembly.

v4: Rebase and addition of a  patch removing an unused struct variable.
v3: Add srcline addr2line fallback trying LLVM first then forking a
    process. This came up in conversation with Steinar Gunderson
    <sesse@google.com>.
    Tweak the cover letter message to try to address Andi Kleen's
    <ak@linux.intel.com> feedback that the series doesn't really
    achieve anything.
v2: Add mangling of the function names in libperf-llvm.so to avoid
    potential infinite recursion. Add BPF JIT disassembly support to
    LLVM and capstone. Add/rebase the BUILD_NONDISTRO cleanup onto the
    series from:
    https://lore.kernel.org/lkml/20250111202851.1075338-1-irogers@google.com/
    Some other minor additional clean up.

Ian Rogers (19):
  perf build: Remove libtracefs configuration
  perf map: Constify objdump offset/address conversion APIs
  perf capstone: Move capstone functionality into its own file
  perf llvm: Move llvm functionality into its own file
  perf capstone: Remove open_capstone_handle
  perf capstone: Support for dlopen-ing libcapstone.so
  perf llvm: Support for dlopen-ing libLLVM.so
  perf llvm: Mangle libperf-llvm.so function names
  perf dso: Move read_symbol from llvm/capstone to dso
  perf dso: Support BPF programs in dso__read_symbol
  perf llvm: Disassemble cleanup
  perf dso: Clean up read_symbol error handling
  perf build: Remove libbfd support
  perf build: Remove libiberty support
  perf build: Remove unused defines
  perf disasm: Remove disasm_bpf
  perf disasm: Make ins__scnprintf and ins__is_nop static
  perf srcline: Fallback between addr2line implementations
  perf disasm: Remove unused evsel from annotate_args

 tools/perf/Documentation/perf-check.txt |   1 -
 tools/perf/Makefile.config              |  90 +--
 tools/perf/Makefile.perf                |  35 +-
 tools/perf/builtin-check.c              |   1 -
 tools/perf/builtin-script.c             |   2 -
 tools/perf/tests/Build                  |   1 -
 tools/perf/tests/builtin-test.c         |   1 -
 tools/perf/tests/make                   |   4 +-
 tools/perf/tests/pe-file-parsing.c      | 101 ----
 tools/perf/tests/tests.h                |   1 -
 tools/perf/util/Build                   |   6 +-
 tools/perf/util/addr2line.c             | 439 ++++++++++++++
 tools/perf/util/addr2line.h             |  20 +
 tools/perf/util/annotate.c              |   1 -
 tools/perf/util/annotate.h              |   1 -
 tools/perf/util/capstone.c              | 682 +++++++++++++++++++++
 tools/perf/util/capstone.h              |  24 +
 tools/perf/util/config.c                |   2 +-
 tools/perf/util/demangle-cxx.cpp        |  22 +-
 tools/perf/util/disasm.c                | 628 +------------------
 tools/perf/util/disasm.h                |   6 +-
 tools/perf/util/disasm_bpf.c            | 195 ------
 tools/perf/util/disasm_bpf.h            |  12 -
 tools/perf/util/dso.c                   |  98 +++
 tools/perf/util/dso.h                   |   4 +
 tools/perf/util/llvm-c-helpers.cpp      | 120 +++-
 tools/perf/util/llvm-c-helpers.h        |  24 +-
 tools/perf/util/llvm.c                  | 484 +++++++++++++++
 tools/perf/util/llvm.h                  |  21 +
 tools/perf/util/map.c                   |  19 +-
 tools/perf/util/map.h                   |   6 +-
 tools/perf/util/print_insn.c            | 117 +---
 tools/perf/util/srcline.c               | 772 +-----------------------
 tools/perf/util/srcline.h               |   7 +-
 tools/perf/util/symbol-elf.c            |  95 ---
 tools/perf/util/symbol.c                | 135 -----
 tools/perf/util/symbol.h                |   4 -
 37 files changed, 2020 insertions(+), 2161 deletions(-)
 delete mode 100644 tools/perf/tests/pe-file-parsing.c
 create mode 100644 tools/perf/util/addr2line.c
 create mode 100644 tools/perf/util/addr2line.h
 create mode 100644 tools/perf/util/capstone.c
 create mode 100644 tools/perf/util/capstone.h
 delete mode 100644 tools/perf/util/disasm_bpf.c
 delete mode 100644 tools/perf/util/disasm_bpf.h
 create mode 100644 tools/perf/util/llvm.c
 create mode 100644 tools/perf/util/llvm.h

Comments

Arnaldo Carvalho de Melo April 18, 2025, 9:29 p.m. UTC | #1

On Thu, Apr 17, 2025 at 04:07:21PM -0700, Ian Rogers wrote:
> Linking against libcapstone and libLLVM can be a significant increase
> in dependencies and file size if building statically. For something
> like `perf record` the disassembler and addr2line functionality won't
> be used. Support dynamically loading these libraries using dlopen and
> then calling the appropriate functions found using dlsym.
> 
> BUILD_NONDISTRO is used to build perf against the license incompatible
> libbfd and libiberty libraries. As this has been opt-in for nearly 2
> years, commit dd317df07207 ("perf build: Make binutil libraries opt
> in"), remove the code to simplify the code base.
> 
> The patch series:
> 1) does some initial clean up;
> 2) moves the capstone and LLVM code to their own C files,
> 3) simplifies a little the capstone code;
> 4) adds perf_ variants of the functions that will either directly call
>    the function or use dlsym to discover it;
> 5) adds BPF JIT disassembly support to LLVM and capstone disassembly;
> 6) removes the BUILD_NONDISTRO code, reduces scope and removes what's possible;
> 7) adds fallback to srcline's addr2line so that llvm_addr2line is
>    tried first and then the forked command tried next, moving the code
>    for forking out of the main srcline.c file in the process.
> 
> The addr2line LLVM functionality is written in C++. To avoid linking
> against libLLVM for this, a new LIBLLVM_DYNAMIC option is added where
> the C++ code with the libLLVM dependency will be built into a
> libperf-llvm.so and that dlsym-ed and called against. Ideally LLVM
> would extend their C API to avoid this.
> 
> The libbfd BPF disassembly supported source lines, this wasn't ported
> to the capstone and LLVM disassembly.

Doing the build tests I noticed, so far:

  29    58.92 opensuse:15.4                 : FAIL gcc version 7.5.0 (SUSE Linux) 
<SNIP>
+ make NO_LIBTRACEEVENT=1 ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBBPF=1 -C tools/perf O=/tmp/build/perf
make: Entering directory '/git/perf-6.15.0-rc2/tools/perf'
  BUILD:   Doing 'make -j32' parallel build
Warning: Skipped check-headers due to missing ../../include
Makefile.config:560: No elfutils/debuginfod.h found, no debuginfo server support, please install libdebuginfod-dev/elfutils-debuginfod-client-devel or equivalent
Makefile.config:687: Warning: Disabled BPF skeletons as libbpf is required
Makefile.config:1039: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
update-alternatives: error: no alternatives for java
update-alternatives: error: no alternatives for java
Makefile.config:1100: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
Makefile.config:1113: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev

Auto-detecting system features:
...                                   libdw: [ on  ]
...                                   glibc: [ on  ]
...                                  libelf: [ on  ]
...                                 libnuma: [ on  ]
...                  numa_num_possible_cpus: [ on  ]
...                                 libperl: [ on  ]
...                               libpython: [ on  ]
...                               libcrypto: [ on  ]
...                             libcapstone: [ on  ]
...                               llvm-perf: [ on  ]
...                                    zlib: [ on  ]
...                                    lzma: [ on  ]
...                               get_cpuid: [ on  ]
...                                     bpf: [ on  ]
...                                  libaio: [ on  ]
...                                 libzstd: [ on  ]

  PERF_VERSION = 6.15.rc2.gfbcac9367d45
  GEN     /tmp/build/perf/common-cmds.h
  GEN     /tmp/build/perf/arch/arm64/include/generated/asm/sysreg-defs.h
  GEN     perf-archive
  GEN     perf-iostat
  CC      /tmp/build/perf/dlfilters/dlfilter-test-api-v0.o
  CC      /tmp/build/perf/dlfilters/dlfilter-test-api-v2.o
  CC      /tmp/build/perf/dlfilters/dlfilter-show-cycles.o
  INSTALL /tmp/build/perf/libapi/include/api/cpu.h
  INSTALL /tmp/build/perf/libapi/include/api/debug.h
  INSTALL /tmp/build/perf/libapi/include/api/io.h
  MKDIR   /tmp/build/perf/libapi/fd/
  INSTALL /tmp/build/perf/libapi/include/api/io_dir.h
  CC      /tmp/build/perf/libapi/cpu.o
  MKDIR   /tmp/build/perf/libapi/fs/
  INSTALL /tmp/build/perf/libapi/include/api/fd/array.h
  CC      /tmp/build/perf/libapi/debug.o
  MKDIR   /tmp/build/perf/libapi/fs/
  MKDIR   /tmp/build/perf/libapi/fs/
  CC      /tmp/build/perf/libapi/fd/array.o
  INSTALL /tmp/build/perf/libapi/include/api/fs/tracing_path.h
  CC      /tmp/build/perf/libapi/str_error_r.o
  INSTALL /tmp/build/perf/libapi/include/api/fs/fs.h
  CC      /tmp/build/perf/libapi/fs/tracing_path.o
  CC      /tmp/build/perf/libapi/fs/fs.o
  CC      /tmp/build/perf/libapi/fs/cgroup.o
  INSTALL libapi_headers
  INSTALL /tmp/build/perf/libperf/include/perf/bpf_perf.h
  INSTALL /tmp/build/perf/libperf/include/perf/core.h
  INSTALL /tmp/build/perf/libperf/include/perf/cpumap.h
  INSTALL /tmp/build/perf/libperf/include/perf/threadmap.h
  CC      /tmp/build/perf/libperf/core.o
  CC      /tmp/build/perf/libperf/cpumap.o
  CC      /tmp/build/perf/libperf/threadmap.o
  INSTALL /tmp/build/perf/libperf/include/perf/evlist.h
  CC      /tmp/build/perf/libperf/evlist.o
  CC      /tmp/build/perf/libperf/evsel.o
  CC      /tmp/build/perf/libperf/mmap.o
  CC      /tmp/build/perf/libperf/zalloc.o
  INSTALL /tmp/build/perf/libsubcmd/include/subcmd/exec-cmd.h
  INSTALL /tmp/build/perf/libperf/include/perf/evsel.h
  CC      /tmp/build/perf/libperf/xyarray.o
  CC      /tmp/build/perf/libperf/lib.o
  INSTALL /tmp/build/perf/libsubcmd/include/subcmd/help.h
  INSTALL /tmp/build/perf/libsubcmd/include/subcmd/pager.h
  LINK    /tmp/build/perf/dlfilters/dlfilter-test-api-v0.so
  INSTALL /tmp/build/perf/libsubcmd/include/subcmd/parse-options.h
  LD      /tmp/build/perf/libapi/fd/libapi-in.o
  INSTALL /tmp/build/perf/libsubcmd/include/subcmd/run-command.h
  INSTALL libsubcmd_headers
  LINK    /tmp/build/perf/dlfilters/dlfilter-test-api-v2.so
  INSTALL /tmp/build/perf/libperf/include/perf/event.h
  INSTALL /tmp/build/perf/libsymbol/include/symbol/kallsyms.h
  CC      /tmp/build/perf/libsymbol/kallsyms.o
  INSTALL /tmp/build/perf/libperf/include/perf/mmap.h
  INSTALL /tmp/build/perf/libperf/include/internal/cpumap.h
  INSTALL /tmp/build/perf/libperf/include/internal/evlist.h
  INSTALL /tmp/build/perf/libperf/include/internal/evsel.h
  INSTALL /tmp/build/perf/libperf/include/internal/rc_check.h
  INSTALL /tmp/build/perf/libperf/include/internal/mmap.h
  INSTALL /tmp/build/perf/libperf/include/internal/threadmap.h
  INSTALL /tmp/build/perf/libperf/include/internal/lib.h
  INSTALL /tmp/build/perf/libperf/include/internal/xyarray.h
  LINK    /tmp/build/perf/dlfilters/dlfilter-show-cycles.so
  LD      /tmp/build/perf/libapi/fs/libapi-in.o
evlist.c:28:6: error: no previous prototype for 'perf_evlist__init' [-Werror=missing-prototypes]
 void perf_evlist__init(struct perf_evlist *evlist)
      ^~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__init':
evlist.c:30:24: error: dereferencing pointer to incomplete type 'struct perf_evlist'
  INIT_LIST_HEAD(&evlist->entries);
                        ^~
evlist.c:33:2: error: implicit declaration of function 'perf_evlist__reset_id_hash'; did you mean 'perf_evlist__set_maps'? [-Werror=implicit-function-declaration]
  perf_evlist__reset_id_hash(evlist);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~
  perf_evlist__set_maps
evlist.c:33:2: error: nested extern declaration of 'perf_evlist__reset_id_hash' [-Werror=nested-externs]
evlist.c: In function 'perf_evlist__purge':
evlist.c:157:2: error: implicit declaration of function 'perf_evlist__for_each_entry_safe'; did you mean 'hlist_for_each_entry_safe'? [-Werror=implicit-function-declaration]
  perf_evlist__for_each_entry_safe(evlist, n, pos) {
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  hlist_for_each_entry_safe
evlist.c:157:2: error: nested extern declaration of 'perf_evlist__for_each_entry_safe' [-Werror=nested-externs]
evlist.c:157:51: error: expected ';' before '{' token
  perf_evlist__for_each_entry_safe(evlist, n, pos) {
                                                   ^
evlist.c: At top level:
evlist.c:165:6: error: no previous prototype for 'perf_evlist__exit' [-Werror=missing-prototypes]
 void perf_evlist__exit(struct perf_evlist *evlist)
      ^~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__open':
evlist.c:217:2: error: implicit declaration of function 'perf_evlist__for_each_entry'; did you mean 'perf_evlist__for_each_evsel'? [-Werror=implicit-function-declaration]
  perf_evlist__for_each_entry(evlist, evsel) {
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  perf_evlist__for_each_evsel
evlist.c:217:2: error: nested extern declaration of 'perf_evlist__for_each_entry' [-Werror=nested-externs]
evlist.c:217:45: error: expected ';' before '{' token
  perf_evlist__for_each_entry(evlist, evsel) {
                                             ^
evlist.c:225:1: error: label 'out_err' defined but not used [-Werror=unused-label]
 out_err:
 ^~~~~~~
  INSTALL libperf_headers
evlist.c: In function 'perf_evlist__close':
evlist.c:234:2: error: implicit declaration of function 'perf_evlist__for_each_entry_reverse'; did you mean 'list_for_each_entry_reverse'? [-Werror=implicit-function-declaration]
  perf_evlist__for_each_entry_reverse(evlist, evsel)
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  list_for_each_entry_reverse
evlist.c:234:2: error: nested extern declaration of 'perf_evlist__for_each_entry_reverse' [-Werror=nested-externs]
evlist.c:235:3: error: expected ';' before 'perf_evsel__close'
   perf_evsel__close(evsel);
   ^~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__enable':
evlist.c:243:3: error: expected ';' before 'perf_evsel__enable'
   perf_evsel__enable(evsel);
   ^~~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__disable':
evlist.c:251:3: error: expected ';' before 'perf_evsel__disable'
   perf_evsel__disable(evsel);
   ^~~~~~~~~~~~~~~~~~~
evlist.c: At top level:
evlist.c:254:5: error: no previous prototype for 'perf_evlist__read_format' [-Werror=missing-prototypes]
 u64 perf_evlist__read_format(struct perf_evlist *evlist)
     ^~~~~~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__read_format':
evlist.c:256:29: error: implicit declaration of function 'perf_evlist__first'; did you mean 'perf_evlist__init'? [-Werror=implicit-function-declaration]
  struct perf_evsel *first = perf_evlist__first(evlist);
                             ^~~~~~~~~~~~~~~~~~
                             perf_evlist__init
evlist.c:256:29: error: nested extern declaration of 'perf_evlist__first' [-Werror=nested-externs]
evlist.c:256:29: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]
  INSTALL libsymbol_headers
evlist.c: In function 'perf_evlist__id_hash':
evlist.c:272:26: error: 'PERF_EVLIST__HLIST_BITS' undeclared (first use in this function); did you mean 'PERF_SAMPLE_ID__HLIST_BITS'?
  hash = hash_64(sid->id, PERF_EVLIST__HLIST_BITS);
                          ^~~~~~~~~~~~~~~~~~~~~~~
                          PERF_SAMPLE_ID__HLIST_BITS
evlist.c:272:26: note: each undeclared identifier is reported only once for each function it appears in
evlist.c:267:6: error: variable 'hash' set but not used [-Werror=unused-but-set-variable]
  int hash;
      ^~~~
evlist.c: At top level:
evlist.c:276:6: error: no previous prototype for 'perf_evlist__reset_id_hash' [-Werror=missing-prototypes]
 void perf_evlist__reset_id_hash(struct perf_evlist *evlist)
      ^~~~~~~~~~~~~~~~~~~~~~~~~~
evlist.c:276:6: error: conflicting types for 'perf_evlist__reset_id_hash' [-Werror]
evlist.c:33:2: note: previous implicit declaration of 'perf_evlist__reset_id_hash' was here
  perf_evlist__reset_id_hash(evlist);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~
  LD      /tmp/build/perf/libapi/libapi-in.o
evlist.c: In function 'perf_evlist__reset_id_hash':
evlist.c:280:18: error: 'PERF_EVLIST__HLIST_SIZE' undeclared (first use in this function); did you mean 'PERF_SAMPLE_ID__HLIST_SIZE'?
  for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
                  ^~~~~~~~~~~~~~~~~~~~~~~
                  PERF_SAMPLE_ID__HLIST_SIZE
evlist.c: At top level:
evlist.c:284:6: error: no previous prototype for 'perf_evlist__id_add' [-Werror=missing-prototypes]
 void perf_evlist__id_add(struct perf_evlist *evlist,
      ^~~~~~~~~~~~~~~~~~~
evlist.c:295:5: error: no previous prototype for 'perf_evlist__id_add_fd' [-Werror=missing-prototypes]
 int perf_evlist__id_add_fd(struct perf_evlist *evlist,
     ^~~~~~~~~~~~~~~~~~~~~~
evlist.c:339:5: error: no previous prototype for 'perf_evlist__alloc_pollfd' [-Werror=missing-prototypes]
 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist)
     ^~~~~~~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__alloc_pollfd':
evlist.c:346:45: error: expected ';' before '{' token
  perf_evlist__for_each_entry(evlist, evsel) {
                                             ^
evlist.c:343:6: error: unused variable 'nfds' [-Werror=unused-variable]
  int nfds = 0;
      ^~~~
evlist.c:342:6: error: unused variable 'nr_threads' [-Werror=unused-variable]
  int nr_threads = perf_thread_map__nr(evlist->threads);
      ^~~~~~~~~~
evlist.c:341:6: error: unused variable 'nr_cpus' [-Werror=unused-variable]
  int nr_cpus = perf_cpu_map__nr(evlist->all_cpus);
      ^~~~~~~
evlist.c: At top level:
evlist.c:360:5: error: no previous prototype for 'perf_evlist__add_pollfd' [-Werror=missing-prototypes]
 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
     ^~~~~~~~~~~~~~~~~~~~~~~
evlist.c:469:51: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
 mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
                                                   ^~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'mmap_per_evsel':
evlist.c:477:45: error: expected ';' before '{' token
  perf_evlist__for_each_entry(evlist, evsel) {
                                             ^
evlist.c:475:6: error: unused variable 'revent' [-Werror=unused-variable]
  int revent;
      ^~~~~~
evlist.c:473:18: error: unused variable 'evlist_cpu' [-Werror=unused-variable]
  struct perf_cpu evlist_cpu = perf_cpu_map__cpu(evlist->all_cpus, cpu_idx);
                  ^~~~~~~~~~
evlist.c:560:1: error: no return statement in function returning non-void [-Werror=return-type]
 }
 ^
evlist.c:469:73: error: unused parameter 'ops' [-Werror=unused-parameter]
 mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
                                                                         ^~~
evlist.c:470:13: error: unused parameter 'idx' [-Werror=unused-parameter]
         int idx, struct perf_mmap_param *mp, int cpu_idx,
             ^~~
evlist.c:470:42: error: unused parameter 'mp' [-Werror=unused-parameter]
         int idx, struct perf_mmap_param *mp, int cpu_idx,
                                          ^~
evlist.c:471:13: error: unused parameter 'thread' [-Werror=unused-parameter]
         int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
             ^~~~~~
evlist.c:471:26: error: unused parameter '_output' [-Werror=unused-parameter]
         int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
                          ^~~~~~~
evlist.c:471:40: error: unused parameter '_output_overwrite' [-Werror=unused-parameter]
         int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
                                        ^~~~~~~~~~~~~~~~~
evlist.c:471:64: error: unused parameter 'nr_mmaps' [-Werror=unused-parameter]
         int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
                                                                ^~~~~~~~
evlist.c: At top level:
evlist.c:563:52: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
 mmap_per_thread(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
                                                    ^~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'mmap_per_thread':
evlist.c:579:30: error: passing argument 2 of 'mmap_per_evsel' from incompatible pointer type [-Werror=incompatible-pointer-types]
   if (mmap_per_evsel(evlist, ops, idx, mp, 0, thread, &output,
                              ^~~
evlist.c:469:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
 mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
 ^~~~~~~~~~~~~~
evlist.c:589:30: error: passing argument 2 of 'mmap_per_evsel' from incompatible pointer type [-Werror=incompatible-pointer-types]
   if (mmap_per_evsel(evlist, ops, idx, mp, cpu, 0, &output,
                              ^~~
evlist.c:469:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
 mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
 ^~~~~~~~~~~~~~
evlist.c: At top level:
evlist.c:605:49: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
 mmap_per_cpu(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
                                                 ^~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'mmap_per_cpu':
evlist.c:620:31: error: passing argument 2 of 'mmap_per_evsel' from incompatible pointer type [-Werror=incompatible-pointer-types]
    if (mmap_per_evsel(evlist, ops, cpu, mp, cpu,
                               ^~~
evlist.c:469:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
 mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
 ^~~~~~~~~~~~~~
evlist.c: At top level:
evlist.c:653:13: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
      struct perf_evlist_mmap_ops *ops,
             ^~~~~~~~~~~~~~~~~~~~
evlist.c:652:5: error: no previous prototype for 'perf_evlist__mmap_ops' [-Werror=missing-prototypes]
 int perf_evlist__mmap_ops(struct perf_evlist *evlist,
     ^~~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__mmap_ops':
evlist.c:659:18: error: dereferencing pointer to incomplete type 'struct perf_evlist_mmap_ops'
  if (!ops || !ops->get || !ops->mmap)
                  ^~
evlist.c:666:45: error: expected ';' before '{' token
  perf_evlist__for_each_entry(evlist, evsel) {
                                             ^
evlist.c:677:34: error: passing argument 2 of 'mmap_per_thread' from incompatible pointer type [-Werror=incompatible-pointer-types]
   return mmap_per_thread(evlist, ops, mp);
                                  ^~~
evlist.c:563:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
 mmap_per_thread(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
 ^~~~~~~~~~~~~~~
evlist.c:679:30: error: passing argument 2 of 'mmap_per_cpu' from incompatible pointer type [-Werror=incompatible-pointer-types]
  return mmap_per_cpu(evlist, ops, mp);
                              ^~~
evlist.c:605:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
 mmap_per_cpu(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
 ^~~~~~~~~~~~
evlist.c: In function 'perf_evlist__mmap':
evlist.c:685:9: error: variable 'ops' has initializer but incomplete type
  struct perf_evlist_mmap_ops ops = {
         ^~~~~~~~~~~~~~~~~~~~
evlist.c:686:4: error: 'struct perf_evlist_mmap_ops' has no member named 'get'
   .get  = perf_evlist__mmap_cb_get,
    ^~~
evlist.c:686:11: error: excess elements in struct initializer [-Werror]
   .get  = perf_evlist__mmap_cb_get,
           ^~~~~~~~~~~~~~~~~~~~~~~~
evlist.c:686:11: note: (near initialization for 'ops')
evlist.c:687:4: error: 'struct perf_evlist_mmap_ops' has no member named 'mmap'
   .mmap = perf_evlist__mmap_cb_mmap,
    ^~~~
evlist.c:687:11: error: excess elements in struct initializer [-Werror]
   .mmap = perf_evlist__mmap_cb_mmap,
           ^~~~~~~~~~~~~~~~~~~~~~~~~
evlist.c:687:11: note: (near initialization for 'ops')
evlist.c:685:30: error: storage size of 'ops' isn't known
  struct perf_evlist_mmap_ops ops = {
                              ^~~
evlist.c:685:30: error: unused variable 'ops' [-Werror=unused-variable]
evlist.c: At top level:
evlist.c:723:6: error: no previous prototype for '__perf_evlist__set_leader' [-Werror=missing-prototypes]
 void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader)
      ^~~~~~~~~~~~~~~~~~~~~~~~~
evlist.c: In function '__perf_evlist__set_leader':
evlist.c:728:2: error: implicit declaration of function '__perf_evlist__for_each_entry'; did you mean 'perf_evlist__for_each_evsel'? [-Werror=implicit-function-declaration]
  __perf_evlist__for_each_entry(list, evsel) {
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  perf_evlist__for_each_evsel
evlist.c:728:2: error: nested extern declaration of '__perf_evlist__for_each_entry' [-Werror=nested-externs]
evlist.c:728:45: error: expected ';' before '{' token
  __perf_evlist__for_each_entry(list, evsel) {
                                             ^
evlist.c:726:6: error: unused variable 'n' [-Werror=unused-variable]
  int n = 0;
      ^
evlist.c:723:75: error: unused parameter 'leader' [-Werror=unused-parameter]
 void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader)
                                                                           ^~~~~~
evlist.c: At top level:
evlist.c:762:6: error: no previous prototype for 'perf_evlist__go_system_wide' [-Werror=missing-prototypes]
 void perf_evlist__go_system_wide(struct perf_evlist *evlist, struct perf_evsel *evsel)
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
evlist.c: In function 'perf_evlist__filter_pollfd':
evlist.c:386:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
evlist.c: In function 'perf_evlist__poll':
evlist.c:391:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
evlist.c: In function 'perf_evlist__mmap':
evlist.c:693:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
evlist.c: In function 'perf_evlist__next_mmap':
evlist.c:721:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
At top level:
evlist.c:459:13: error: 'perf_evlist__set_mmap_first' defined but not used [-Werror=unused-function]
 static void perf_evlist__set_mmap_first(struct perf_evlist *evlist, struct perf_mmap *map,
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
evlist.c:420:13: error: 'perf_evsel__set_sid_idx' defined but not used [-Werror=unused-function]
 static void perf_evsel__set_sid_idx(struct perf_evsel *evsel, int idx, int cpu, int thread)
             ^~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[4]: *** [/git/perf-6.15.0-rc2/tools/build/Makefile.build:85: /tmp/build/perf/libperf/evlist.o] Error 1
make[4]: *** Waiting for unfinished jobs....
  AR      /tmp/build/perf/libapi/libapi.a
  CC      /tmp/build/perf/libsubcmd/exec-cmd.o
  CC      /tmp/build/perf/libsubcmd/help.o
  CC      /tmp/build/perf/libsubcmd/pager.o
  CC      /tmp/build/perf/libsubcmd/run-command.o
  CC      /tmp/build/perf/libsubcmd/parse-options.o
  CC      /tmp/build/perf/libsubcmd/sigchain.o
  CC      /tmp/build/perf/libsubcmd/subcmd-config.o
  LD      /tmp/build/perf/libsymbol/libsymbol-in.o
  AR      /tmp/build/perf/libsymbol/libsymbol.a
make[3]: *** [Makefile:103: /tmp/build/perf/libperf/libperf-in.o] Error 2
make[2]: *** [Makefile.perf:976: /tmp/build/perf/libperf/libperf.a] Error 2
make[2]: *** Waiting for unfinished jobs....
  LD      /tmp/build/perf/libsubcmd/libsubcmd-in.o
  AR      /tmp/build/perf/libsubcmd/libsubcmd.a
make[1]: *** [Makefile.perf:287: sub-make] Error 2
make: *** [Makefile:76: all] Error 2
make: Leaving directory '/git/perf-6.15.0-rc2/tools/perf'
+ exit 1
toolsbuilder@number:~/git/linux-tools-container-builds$ 


  23    18.51 fedora:38                     : FAIL gcc version 13.2.1 20240316 (Red Hat 13.2.1-7) (GCC) 
<SNIP>
evsel.c:23:6: error: no previous prototype for 'perf_evsel__init' [-Werror=missing-prototypes]
   23 | void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
      |      ^~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__init':
evsel.c:26:30: error: invalid use of undefined type 'struct perf_evsel'
   26 |         INIT_LIST_HEAD(&evsel->node);
      |                              ^~
evsel.c:27:30: error: invalid use of undefined type 'struct perf_evsel'
   27 |         INIT_LIST_HEAD(&evsel->per_stream_periods);
      |                              ^~
evsel.c:28:14: error: invalid use of undefined type 'struct perf_evsel'
   28 |         evsel->attr = *attr;
      |              ^~
evsel.c:28:23: error: invalid use of undefined type 'struct perf_event_attr'
   28 |         evsel->attr = *attr;
      |                       ^
evsel.c:29:14: error: invalid use of undefined type 'struct perf_evsel'
   29 |         evsel->idx  = idx;
      |              ^~
evsel.c:30:14: error: invalid use of undefined type 'struct perf_evsel'
   30 |         evsel->leader = evsel;
      |              ^~
evsel.c: In function 'perf_evsel__new':
evsel.c:35:49: error: invalid application of 'sizeof' to incomplete type 'struct perf_evsel'
   35 |         struct perf_evsel *evsel = zalloc(sizeof(*evsel));
      |                                                 ^
evsel.c: At top level:
evsel.c:54:5: error: no previous prototype for 'perf_evsel__alloc_fd' [-Werror=missing-prototypes]
   54 | int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
      |     ^~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__alloc_fd':
evsel.c:56:14: error: invalid use of undefined type 'struct perf_evsel'
   56 |         evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int));
      |              ^~
evsel.c:58:18: error: invalid use of undefined type 'struct perf_evsel'
   58 |         if (evsel->fd) {
      |                  ^~
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:63:43: note: in expansion of macro 'FD'
   63 |                                 int *fd = FD(evsel, idx, thread);
      |                                           ^~
evsel.c:71:21: error: invalid use of undefined type 'struct perf_evsel'
   71 |         return evsel->fd != NULL ? 0 : -ENOMEM;
      |                     ^~
evsel.c: In function 'perf_evsel__alloc_mmap':
evsel.c:76:14: error: invalid use of undefined type 'struct perf_evsel'
   76 |         evsel->mmap = xyarray__new(ncpus, nthreads, sizeof(struct perf_mmap));
      |              ^~
evsel.c:78:21: error: invalid use of undefined type 'struct perf_evsel'
   78 |         return evsel->mmap != NULL ? 0 : -ENOMEM;
      |                     ^~
evsel.c: In function 'get_group_fd':
evsel.c:91:42: error: invalid use of undefined type 'struct perf_evsel'
   91 |         struct perf_evsel *leader = evsel->leader;
      |                                          ^~
evsel.c:103:20: error: invalid use of undefined type 'struct perf_evsel'
  103 |         if (!leader->fd)
      |                    ^~
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:106:14: note: in expansion of macro 'FD'
  106 |         fd = FD(leader, cpu_map_idx, thread);
      |              ^~
evsel.c: In function 'perf_evsel__open':
evsel.c:145:18: error: invalid use of undefined type 'struct perf_evsel'
  145 |         if (evsel->fd == NULL &&
      |                  ^~
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:153:36: note: in expansion of macro 'FD'
  153 |                         evsel_fd = FD(evsel, idx, thread);
      |                                    ^~
evsel.c:163:56: error: invalid use of undefined type 'struct perf_evsel'
  163 |                         fd = sys_perf_event_open(&evsel->attr,
      |                                                        ^~
evsel.c: In function 'perf_evsel__close_fd_cpu':
evsel.c:186:55: error: invalid use of undefined type 'struct perf_evsel'
  186 |         for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
      |                                                       ^~
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:187:27: note: in expansion of macro 'FD'
  187 |                 int *fd = FD(evsel, cpu_map_idx, thread);
      |                           ^~
evsel.c: At top level:
evsel.c:196:6: error: no previous prototype for 'perf_evsel__close_fd' [-Werror=missing-prototypes]
  196 | void perf_evsel__close_fd(struct perf_evsel *evsel)
      |      ^~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__close_fd':
evsel.c:198:53: error: invalid use of undefined type 'struct perf_evsel'
  198 |         for (int idx = 0; idx < xyarray__max_x(evsel->fd); idx++)
      |                                                     ^~
evsel.c: At top level:
evsel.c:202:6: error: no previous prototype for 'perf_evsel__free_fd' [-Werror=missing-prototypes]
  202 | void perf_evsel__free_fd(struct perf_evsel *evsel)
      |      ^~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__free_fd':
evsel.c:204:30: error: invalid use of undefined type 'struct perf_evsel'
  204 |         xyarray__delete(evsel->fd);
      |                              ^~
evsel.c:205:14: error: invalid use of undefined type 'struct perf_evsel'
  205 |         evsel->fd = NULL;
      |              ^~
evsel.c: In function 'perf_evsel__close':
evsel.c:210:18: error: invalid use of undefined type 'struct perf_evsel'
  210 |         if (evsel->fd == NULL)
      |                  ^~
evsel.c: In function 'perf_evsel__close_cpu':
evsel.c:219:18: error: invalid use of undefined type 'struct perf_evsel'
  219 |         if (evsel->fd == NULL)
      |                  ^~
evsel.c: In function 'perf_evsel__munmap':
evsel.c:229:18: error: invalid use of undefined type 'struct perf_evsel'
  229 |         if (evsel->fd == NULL || evsel->mmap == NULL)
      |                  ^~
evsel.c:229:39: error: invalid use of undefined type 'struct perf_evsel'
  229 |         if (evsel->fd == NULL || evsel->mmap == NULL)
      |                                       ^~
evsel.c:232:49: error: invalid use of undefined type 'struct perf_evsel'
  232 |         for (idx = 0; idx < xyarray__max_x(evsel->fd); idx++) {
      |                                                 ^~
evsel.c:233:63: error: invalid use of undefined type 'struct perf_evsel'
  233 |                 for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
      |                                                               ^~
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:234:35: note: in expansion of macro 'FD'
  234 |                         int *fd = FD(evsel, idx, thread);
      |                                   ^~
evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                ^~
evsel.c:239:43: note: in expansion of macro 'MMAP'
  239 |                         perf_mmap__munmap(MMAP(evsel, idx, thread));
      |                                           ^~~~
evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                                                                    ^~
evsel.c:239:43: note: in expansion of macro 'MMAP'
  239 |                         perf_mmap__munmap(MMAP(evsel, idx, thread));
      |                                           ^~~~
evsel.c:243:30: error: invalid use of undefined type 'struct perf_evsel'
  243 |         xyarray__delete(evsel->mmap);
      |                              ^~
evsel.c:244:14: error: invalid use of undefined type 'struct perf_evsel'
  244 |         evsel->mmap = NULL;
      |              ^~
evsel.c: In function 'perf_evsel__mmap':
evsel.c:255:18: error: invalid use of undefined type 'struct perf_evsel'
  255 |         if (evsel->fd == NULL || evsel->mmap)
      |                  ^~
evsel.c:255:39: error: invalid use of undefined type 'struct perf_evsel'
  255 |         if (evsel->fd == NULL || evsel->mmap)
      |                                       ^~
evsel.c:258:63: error: invalid use of undefined type 'struct perf_evsel'
  258 |         if (perf_evsel__alloc_mmap(evsel, xyarray__max_x(evsel->fd), xyarray__max_y(evsel->fd)) < 0)
      |                                                               ^~
evsel.c:258:90: error: invalid use of undefined type 'struct perf_evsel'
  258 |         if (perf_evsel__alloc_mmap(evsel, xyarray__max_x(evsel->fd), xyarray__max_y(evsel->fd)) < 0)
      |                                                                                          ^~
evsel.c:261:49: error: invalid use of undefined type 'struct perf_evsel'
  261 |         for (idx = 0; idx < xyarray__max_x(evsel->fd); idx++) {
      |                                                 ^~
evsel.c:262:63: error: invalid use of undefined type 'struct perf_evsel'
  262 |                 for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
      |                                                               ^~
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:263:35: note: in expansion of macro 'FD'
  263 |                         int *fd = FD(evsel, idx, thread);
      |                                   ^~
evsel.c:265:70: error: invalid use of undefined type 'struct perf_evsel'
  265 |                         struct perf_cpu cpu = perf_cpu_map__cpu(evsel->cpus, idx);
      |                                                                      ^~
evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                ^~
evsel.c:270:31: note: in expansion of macro 'MMAP'
  270 |                         map = MMAP(evsel, idx, thread);
      |                               ^~~~
evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                                                                    ^~
evsel.c:270:31: note: in expansion of macro 'MMAP'
  270 |                         map = MMAP(evsel, idx, thread);
      |                               ^~~~
evsel.c: In function 'perf_evsel__mmap_base':
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:286:19: note: in expansion of macro 'FD'
  286 |         int *fd = FD(evsel, cpu_map_idx, thread);
      |                   ^~
evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                ^~
evsel.c:288:38: note: in expansion of macro 'MMAP'
  288 |         if (fd == NULL || *fd < 0 || MMAP(evsel, cpu_map_idx, thread) == NULL)
      |                                      ^~~~
evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                                                                    ^~
evsel.c:288:38: note: in expansion of macro 'MMAP'
  288 |         if (fd == NULL || *fd < 0 || MMAP(evsel, cpu_map_idx, thread) == NULL)
      |                                      ^~~~
evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                ^~
evsel.c:291:16: note: in expansion of macro 'MMAP'
  291 |         return MMAP(evsel, cpu_map_idx, thread)->base;
      |                ^~~~
evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                                                                    ^~
evsel.c:291:16: note: in expansion of macro 'MMAP'
  291 |         return MMAP(evsel, cpu_map_idx, thread)->base;
      |                ^~~~
evsel.c: At top level:
evsel.c:294:5: error: no previous prototype for 'perf_evsel__read_size' [-Werror=missing-prototypes]
  294 | int perf_evsel__read_size(struct perf_evsel *evsel)
      |     ^~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__read_size':
evsel.c:296:32: error: invalid use of undefined type 'struct perf_evsel'
  296 |         u64 read_format = evsel->attr.read_format;
      |                                ^~
evsel.c:301:27: error: 'PERF_FORMAT_TOTAL_TIME_ENABLED' undeclared (first use in this function)
  301 |         if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c:301:27: note: each undeclared identifier is reported only once for each function it appears in
evsel.c:304:27: error: 'PERF_FORMAT_TOTAL_TIME_RUNNING' undeclared (first use in this function)
  304 |         if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c:307:27: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
  307 |         if (read_format & PERF_FORMAT_ID)
      |                           ^~~~~~~~~~~~~~
evsel.c:310:27: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
  310 |         if (read_format & PERF_FORMAT_LOST)
      |                           ^~~~~~~~~~~~~~~~
evsel.c:313:27: error: 'PERF_FORMAT_GROUP' undeclared (first use in this function)
  313 |         if (read_format & PERF_FORMAT_GROUP) {
      |                           ^~~~~~~~~~~~~~~~~
evsel.c:314:27: error: invalid use of undefined type 'struct perf_evsel'
  314 |                 nr = evsel->nr_members;
      |                           ^~
evsel.c: In function 'perf_evsel__read_group':
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:327:19: note: in expansion of macro 'FD'
  327 |         int *fd = FD(evsel, cpu_map_idx, thread);
      |                   ^~
evsel.c:328:32: error: invalid use of undefined type 'struct perf_evsel'
  328 |         u64 read_format = evsel->attr.read_format;
      |                                ^~
evsel.c:348:27: error: 'PERF_FORMAT_TOTAL_TIME_ENABLED' undeclared (first use in this function)
  348 |         if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c:350:27: error: 'PERF_FORMAT_TOTAL_TIME_RUNNING' undeclared (first use in this function)
  350 |         if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c:355:27: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
  355 |         if (read_format & PERF_FORMAT_ID)
      |                           ^~~~~~~~~~~~~~
evsel.c:357:27: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
  357 |         if (read_format & PERF_FORMAT_LOST)
      |                           ^~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__adjust_values':
evsel.c:371:32: error: invalid use of undefined type 'struct perf_evsel'
  371 |         u64 read_format = evsel->attr.read_format;
      |                                ^~
evsel.c:376:27: error: 'PERF_FORMAT_TOTAL_TIME_ENABLED' undeclared (first use in this function)
  376 |         if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  CC      /tmp/build/perf/libsubcmd/subcmd-config.o
evsel.c:379:27: error: 'PERF_FORMAT_TOTAL_TIME_RUNNING' undeclared (first use in this function)
  379 |         if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  CC      /tmp/build/perf/libbpf/staticobjs/libbpf.o
evsel.c:382:27: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
  382 |         if (read_format & PERF_FORMAT_ID)
      |                           ^~~~~~~~~~~~~~
evsel.c:385:27: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
  385 |         if (read_format & PERF_FORMAT_LOST)
      |                           ^~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__read':
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:393:19: note: in expansion of macro 'FD'
  393 |         int *fd = FD(evsel, cpu_map_idx, thread);
      |                   ^~
evsel.c:394:32: error: invalid use of undefined type 'struct perf_evsel'
  394 |         u64 read_format = evsel->attr.read_format;
      |                                ^~
evsel.c:402:27: error: 'PERF_FORMAT_GROUP' undeclared (first use in this function)
  402 |         if (read_format & PERF_FORMAT_GROUP)
      |                           ^~~~~~~~~~~~~~~~~
evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                ^~
evsel.c:405:13: note: in expansion of macro 'MMAP'
  405 |         if (MMAP(evsel, cpu_map_idx, thread) &&
      |             ^~~~
evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                                                                    ^~
evsel.c:405:13: note: in expansion of macro 'MMAP'
  405 |         if (MMAP(evsel, cpu_map_idx, thread) &&
      |             ^~~~
evsel.c:406:30: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
  406 |             !(read_format & (PERF_FORMAT_ID | PERF_FORMAT_LOST)) &&
      |                              ^~~~~~~~~~~~~~
evsel.c:406:47: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
  406 |             !(read_format & (PERF_FORMAT_ID | PERF_FORMAT_LOST)) &&
      |                                               ^~~~~~~~~~~~~~~~
evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                ^~
evsel.c:407:35: note: in expansion of macro 'MMAP'
  407 |             !perf_mmap__read_self(MMAP(evsel, cpu_map_idx, thread), count))
      |                                   ^~~~
evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
   51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
      |                                                                    ^~
evsel.c:407:35: note: in expansion of macro 'MMAP'
  407 |             !perf_mmap__read_self(MMAP(evsel, cpu_map_idx, thread), count))
      |                                   ^~~~
evsel.c: In function 'perf_evsel__ioctl':
evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
   49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
      |                                      ^~
evsel.c:420:19: note: in expansion of macro 'FD'
  420 |         int *fd = FD(evsel, cpu_map_idx, thread);
      |                   ^~
evsel.c: In function 'perf_evsel__run_ioctl':
evsel.c:434:55: error: invalid use of undefined type 'struct perf_evsel'
  434 |         for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
      |                                                       ^~
  INSTALL /tmp/build/perf/libperf/include/internal/xyarray.h
evsel.c: In function 'perf_evsel__enable_cpu':
evsel.c:446:45: error: 'PERF_EVENT_IOC_ENABLE' undeclared (first use in this function)
  446 |         return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu_map_idx);
      |                                             ^~~~~~~~~~~~~~~~~~~~~
In file included from evsel.c:6:
evsel.c: In function 'perf_evsel__enable_thread':
evsel.c:455:51: error: invalid use of undefined type 'struct perf_evsel'
  455 |         perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
      |                                                   ^~
/tmp/build/perf/libperf/include/perf/cpumap.h:89:51: note: in definition of macro 'perf_cpu_map__for_each_cpu'
   89 |         for ((idx) = 0, (cpu) = perf_cpu_map__cpu(cpus, idx);   \
      |                                                   ^~~~
evsel.c:455:51: error: invalid use of undefined type 'struct perf_evsel'
  455 |         perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
      |                                                   ^~
/tmp/build/perf/libperf/include/perf/cpumap.h:90:39: note: in definition of macro 'perf_cpu_map__for_each_cpu'
   90 |              (idx) < perf_cpu_map__nr(cpus);                    \
      |                                       ^~~~
evsel.c:455:51: error: invalid use of undefined type 'struct perf_evsel'
  455 |         perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
      |                                                   ^~
/tmp/build/perf/libperf/include/perf/cpumap.h:91:49: note: in definition of macro 'perf_cpu_map__for_each_cpu'
   91 |              (idx)++, (cpu) = perf_cpu_map__cpu(cpus, idx))
      |                                                 ^~~~
evsel.c:456:48: error: 'PERF_EVENT_IOC_ENABLE' undeclared (first use in this function)
  456 |                 err = perf_evsel__ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, idx, thread);
      |                                                ^~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__enable':
evsel.c:469:45: error: invalid use of undefined type 'struct perf_evsel'
  469 |         for (i = 0; i < xyarray__max_x(evsel->fd) && !err; i++)
      |                                             ^~
evsel.c:470:52: error: 'PERF_EVENT_IOC_ENABLE' undeclared (first use in this function)
  470 |                 err = perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, i);
      |                                                    ^~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__disable_cpu':
evsel.c:476:45: error: 'PERF_EVENT_IOC_DISABLE' undeclared (first use in this function)
  476 |         return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, cpu_map_idx);
      |                                             ^~~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__disable':
evsel.c:484:45: error: invalid use of undefined type 'struct perf_evsel'
  484 |         for (i = 0; i < xyarray__max_x(evsel->fd) && !err; i++)
      |                                             ^~
evsel.c:485:52: error: 'PERF_EVENT_IOC_DISABLE' undeclared (first use in this function)
  485 |                 err = perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, i);
      |                                                    ^~~~~~~~~~~~~~~~~~~~~~
evsel.c: At top level:
evsel.c:489:5: error: no previous prototype for 'perf_evsel__apply_filter' [-Werror=missing-prototypes]
  489 | int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__apply_filter':
evsel.c:493:47: error: invalid use of undefined type 'struct perf_evsel'
  493 |         for (i = 0; i < perf_cpu_map__nr(evsel->cpus) && !err; i++)
      |                                               ^~
evsel.c:495:38: error: 'PERF_EVENT_IOC_SET_FILTER' undeclared (first use in this function)
  495 |                                      PERF_EVENT_IOC_SET_FILTER,
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__cpus':
evsel.c:502:21: error: invalid use of undefined type 'struct perf_evsel'
  502 |         return evsel->cpus;
      |                     ^~
evsel.c: In function 'perf_evsel__threads':
evsel.c:507:21: error: invalid use of undefined type 'struct perf_evsel'
  507 |         return evsel->threads;
      |                     ^~
evsel.c: In function 'perf_evsel__attr':
evsel.c:512:22: error: invalid use of undefined type 'struct perf_evsel'
  512 |         return &evsel->attr;
      |                      ^~
evsel.c: At top level:
evsel.c:515:5: error: no previous prototype for 'perf_evsel__alloc_id' [-Werror=missing-prototypes]
  515 | int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
      |     ^~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__alloc_id':
evsel.c:520:14: error: invalid use of undefined type 'struct perf_evsel'
  520 |         evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
      |              ^~
evsel.c:520:65: error: invalid application of 'sizeof' to incomplete type 'struct perf_sample_id'
  520 |         evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
      |                                                                 ^~~~~~
evsel.c:521:18: error: invalid use of undefined type 'struct perf_evsel'
  521 |         if (evsel->sample_id == NULL)
      |                  ^~
evsel.c:524:14: error: invalid use of undefined type 'struct perf_evsel'
  524 |         evsel->id = zalloc(ncpus * nthreads * sizeof(u64));
      |              ^~
evsel.c:525:18: error: invalid use of undefined type 'struct perf_evsel'
  525 |         if (evsel->id == NULL) {
      |                  ^~
evsel.c:526:38: error: invalid use of undefined type 'struct perf_evsel'
  526 |                 xyarray__delete(evsel->sample_id);
      |                                      ^~
evsel.c:527:22: error: invalid use of undefined type 'struct perf_evsel'
  527 |                 evsel->sample_id = NULL;
      |                      ^~
evsel.c: At top level:
evsel.c:534:6: error: no previous prototype for 'perf_evsel__free_id' [-Werror=missing-prototypes]
  534 | void perf_evsel__free_id(struct perf_evsel *evsel)
      |      ^~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__free_id':
evsel.c:538:30: error: invalid use of undefined type 'struct perf_evsel'
  538 |         xyarray__delete(evsel->sample_id);
      |                              ^~
evsel.c:539:14: error: invalid use of undefined type 'struct perf_evsel'
  539 |         evsel->sample_id = NULL;
      |              ^~
In file included from evsel.c:11:
evsel.c:540:21: error: invalid use of undefined type 'struct perf_evsel'
  540 |         zfree(&evsel->id);
      |                     ^~
/git/perf-6.15.0-rc2/tools/include/linux/zalloc.h:10:38: note: in definition of macro 'zfree'
   10 | #define zfree(ptr) __zfree((void **)(ptr))
      |                                      ^~~
evsel.c:541:14: error: invalid use of undefined type 'struct perf_evsel'
  541 |         evsel->ids = 0;
      |              ^~
evsel.c:543:9: error: implicit declaration of function 'perf_evsel_for_each_per_thread_period_safe' [-Werror=implicit-function-declaration]
  543 |         perf_evsel_for_each_per_thread_period_safe(evsel, n, pos) {
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c:543:9: error: nested extern declaration of 'perf_evsel_for_each_per_thread_period_safe' [-Werror=nested-externs]
evsel.c:543:66: error: expected ';' before '{' token
  543 |         perf_evsel_for_each_per_thread_period_safe(evsel, n, pos) {
      |                                                                  ^~
      |                                                                  ;
evsel.c: At top level:
evsel.c:549:6: error: no previous prototype for 'perf_evsel__attr_has_per_thread_sample_period' [-Werror=missing-prototypes]
  549 | bool perf_evsel__attr_has_per_thread_sample_period(struct perf_evsel *evsel)
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_evsel__attr_has_per_thread_sample_period':
evsel.c:551:22: error: invalid use of undefined type 'struct perf_evsel'
  551 |         return (evsel->attr.sample_type & PERF_SAMPLE_READ) &&
      |                      ^~
evsel.c:551:43: error: 'PERF_SAMPLE_READ' undeclared (first use in this function)
  551 |         return (evsel->attr.sample_type & PERF_SAMPLE_READ) &&
      |                                           ^~~~~~~~~~~~~~~~
evsel.c:552:23: error: invalid use of undefined type 'struct perf_evsel'
  552 |                 (evsel->attr.sample_type & PERF_SAMPLE_TID) &&
      |                       ^~
evsel.c:552:44: error: 'PERF_SAMPLE_TID' undeclared (first use in this function); did you mean 'PERF_SAMPLE_MAX_SIZE'?
  552 |                 (evsel->attr.sample_type & PERF_SAMPLE_TID) &&
      |                                            ^~~~~~~~~~~~~~~
      |                                            PERF_SAMPLE_MAX_SIZE
evsel.c:553:22: error: invalid use of undefined type 'struct perf_evsel'
  553 |                 evsel->attr.inherit;
      |                      ^~
evsel.c: At top level:
evsel.c:556:48: error: 'struct perf_sample_id' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
  556 | u64 *perf_sample_id__get_period_storage(struct perf_sample_id *sid, u32 tid, bool per_thread)
      |                                                ^~~~~~~~~~~~~~
evsel.c:556:6: error: no previous prototype for 'perf_sample_id__get_period_storage' [-Werror=missing-prototypes]
  556 | u64 *perf_sample_id__get_period_storage(struct perf_sample_id *sid, u32 tid, bool per_thread)
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c: In function 'perf_sample_id__get_period_storage':
evsel.c:563:28: error: invalid use of undefined type 'struct perf_sample_id'
  563 |                 return &sid->period;
      |                            ^~
evsel.c:565:29: error: 'PERF_SAMPLE_ID__HLIST_BITS' undeclared (first use in this function)
  565 |         hash = hash_32(tid, PERF_SAMPLE_ID__HLIST_BITS);
      |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~
evsel.c:566:20: error: invalid use of undefined type 'struct perf_sample_id'
  566 |         head = &sid->periods[hash];
      |                    ^~
In file included from /git/perf-6.15.0-rc2/tools/include/linux/kernel.h:14,
                 from /git/perf-6.15.0-rc2/tools/include/linux/list.h:7,
                 from evsel.c:9:
/git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:33: error: invalid use of undefined type 'struct perf_sample_id_period'
   14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
      |                                 ^~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
  705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
      |                                        ^~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
  716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
      |                      ^~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:726:20: note: in expansion of macro 'hlist_entry_safe'
  726 |         for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
      |                    ^~~~~~~~~~~~~~~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:54: error: initialization of 'const int *' from incompatible pointer type 'struct hlist_node *' [-Werror=incompatible-pointer-types]
   14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
      |                                                      ^
/git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
  705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
      |                                        ^~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
  716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
      |                      ^~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:726:20: note: in expansion of macro 'hlist_entry_safe'
  726 |         for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
      |                    ^~~~~~~~~~~~~~~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/sys/mman.h:25,
                 from evsel.c:20:
/git/perf-6.15.0-rc2/tools/include/linux/container_of.h:15:35: error: invalid use of undefined type 'struct perf_sample_id_period'
   15 |         (type *)((char *)__mptr - offsetof(type, member)); })
      |                                   ^~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
  705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
      |                                        ^~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
  716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
      |                      ^~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:726:20: note: in expansion of macro 'hlist_entry_safe'
  726 |         for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
      |                    ^~~~~~~~~~~~~~~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:728:42: error: invalid use of undefined type 'struct perf_sample_id_period'
  728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
      |                                          ^~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:715:19: note: in definition of macro 'hlist_entry_safe'
  715 |         ({ typeof(ptr) ____ptr = (ptr); \
      |                   ^~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:728:42: error: invalid use of undefined type 'struct perf_sample_id_period'
  728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
      |                                          ^~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:715:35: note: in definition of macro 'hlist_entry_safe'
  715 |         ({ typeof(ptr) ____ptr = (ptr); \
      |                                   ^~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:33: error: invalid use of undefined type 'struct perf_sample_id_period'
   14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
      |                                 ^~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
  705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
      |                                        ^~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
  716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
      |                      ^~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:728:20: note: in expansion of macro 'hlist_entry_safe'
  728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
      |                    ^~~~~~~~~~~~~~~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:54: error: initialization of 'const int *' from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
   14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
      |                                                      ^
/git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
  705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
      |                                        ^~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
  716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
      |                      ^~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:728:20: note: in expansion of macro 'hlist_entry_safe'
  728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
      |                    ^~~~~~~~~~~~~~~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/container_of.h:15:35: error: invalid use of undefined type 'struct perf_sample_id_period'
   15 |         (type *)((char *)__mptr - offsetof(type, member)); })
      |                                   ^~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
  705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
      |                                        ^~~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
  716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
      |                      ^~~~~~~~~~~
/git/perf-6.15.0-rc2/tools/include/linux/list.h:728:20: note: in expansion of macro 'hlist_entry_safe'
  728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
      |                    ^~~~~~~~~~~~~~~~
evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
  568 |         hlist_for_each_entry(res, head, hnode)
      |         ^~~~~~~~~~~~~~~~~~~~
evsel.c:569:24: error: invalid use of undefined type 'struct perf_sample_id_period'
  569 |                 if (res->tid == tid)
      |                        ^~
evsel.c:570:36: error: invalid use of undefined type 'struct perf_sample_id_period'
  570 |                         return &res->period;
      |                                    ^~
evsel.c:572:16: error: invalid use of undefined type 'struct perf_sample_id'
  572 |         if (sid->evsel == NULL)
      |                ^~
evsel.c:575:29: error: invalid application of 'sizeof' to incomplete type 'struct perf_sample_id_period'
  575 |         res = zalloc(sizeof(struct perf_sample_id_period));
      |                             ^~~~~~
evsel.c:579:28: error: invalid use of undefined type 'struct perf_sample_id_period'
  579 |         INIT_LIST_HEAD(&res->node);
      |                            ^~
evsel.c:580:12: error: invalid use of undefined type 'struct perf_sample_id_period'
  580 |         res->tid = tid;
      |            ^~
evsel.c:582:27: error: invalid use of undefined type 'struct perf_sample_id_period'
  582 |         list_add_tail(&res->node, &sid->evsel->per_stream_periods);
      |                           ^~
evsel.c:582:39: error: invalid use of undefined type 'struct perf_sample_id'
  582 |         list_add_tail(&res->node, &sid->evsel->per_stream_periods);
      |                                       ^~
evsel.c:583:28: error: invalid use of undefined type 'struct perf_sample_id_period'
  583 |         hlist_add_head(&res->hnode, &sid->periods[hash]);
      |                            ^~
evsel.c:583:41: error: invalid use of undefined type 'struct perf_sample_id'
  583 |         hlist_add_head(&res->hnode, &sid->periods[hash]);
      |                                         ^~
evsel.c:585:20: error: invalid use of undefined type 'struct perf_sample_id_period'
  585 |         return &res->period;
      |                    ^~
evsel.c:560:13: error: variable 'hash' set but not used [-Werror=unused-but-set-variable]
  560 |         int hash;
      |             ^~~~
evsel.c: In function 'perf_evsel__alloc_fd':
evsel.c:72:1: error: control reaches end of non-void function [-Werror=return-type]
   72 | }
      | ^
evsel.c: In function 'perf_evsel__mmap_base':
evsel.c:292:1: error: control reaches end of non-void function [-Werror=return-type]
  292 | }
      | ^
evsel.c: In function 'perf_evsel__enable_cpu':
evsel.c:447:1: error: control reaches end of non-void function [-Werror=return-type]
  447 | }
      | ^
evsel.c: In function 'perf_evsel__disable_cpu':
evsel.c:477:1: error: control reaches end of non-void function [-Werror=return-type]
  477 | }
      | ^
evsel.c: In function 'perf_evsel__cpus':
evsel.c:503:1: error: control reaches end of non-void function [-Werror=return-type]
  503 | }
      | ^
evsel.c: In function 'perf_evsel__threads':
evsel.c:508:1: error: control reaches end of non-void function [-Werror=return-type]
  508 | }
      | ^
evsel.c: In function 'perf_evsel__attr':
evsel.c:513:1: error: control reaches end of non-void function [-Werror=return-type]
  513 | }
      | ^
evsel.c: In function 'perf_evsel__attr_has_per_thread_sample_period':
evsel.c:554:1: error: control reaches end of non-void function [-Werror=return-type]
  554 | }
      | ^
evsel.c: In function 'perf_sample_id__get_period_storage':
evsel.c:586:1: error: control reaches end of non-void function [-Werror=return-type]
  586 | }
      | ^
cc1: all warnings being treated as errors
make[4]: *** [/git/perf-6.15.0-rc2/tools/build/Makefile.build:85: /tmp/build/perf/libperf/evsel.o] Error 1
make[4]: *** Waiting for unfinished jobs....
  LD      /tmp/build/perf/jvmti/jvmti-in.o
  CC      /tmp/build/perf/libbpf/staticobjs/bpf.o
  INSTALL libperf_headers
  CC      /tmp/build/perf/libbpf/staticobjs/nlattr.o
  LD      /tmp/build/perf/libapi/libapi-in.o
  AR      /tmp/build/perf/libapi/libapi.a
  CC      /tmp/build/perf/libbpf/staticobjs/libbpf_errno.o
  CC      /tmp/build/perf/libbpf/staticobjs/btf.o
  CC      /tmp/build/perf/libbpf/staticobjs/str_error.o
  CC      /tmp/build/perf/libbpf/staticobjs/netlink.o
  CC      /tmp/build/perf/libbpf/staticobjs/bpf_prog_linfo.o
  CC      /tmp/build/perf/libbpf/staticobjs/libbpf_probes.o
  CC      /tmp/build/perf/libbpf/staticobjs/btf_dump.o
  CC      /tmp/build/perf/libbpf/staticobjs/ringbuf.o
  CC      /tmp/build/perf/libbpf/staticobjs/hashmap.o
  CC      /tmp/build/perf/libbpf/staticobjs/strset.o
  CC      /tmp/build/perf/libbpf/staticobjs/linker.o
  CC      /tmp/build/perf/libbpf/staticobjs/gen_loader.o
  CC      /tmp/build/perf/libbpf/staticobjs/usdt.o
  CC      /tmp/build/perf/libbpf/staticobjs/relo_core.o
  CC      /tmp/build/perf/libbpf/staticobjs/zip.o
  CC      /tmp/build/perf/libbpf/staticobjs/elf.o
  CC      /tmp/build/perf/libbpf/staticobjs/btf_iter.o
  CC      /tmp/build/perf/libbpf/staticobjs/features.o
  CC      /tmp/build/perf/libbpf/staticobjs/btf_relocate.o
make[3]: *** [Makefile:103: /tmp/build/perf/libperf/libperf-in.o] Error 2
make[2]: *** [Makefile.perf:976: /tmp/build/perf/libperf/libperf.a] Error 2
make[2]: *** Waiting for unfinished jobs....
  LD      /tmp/build/perf/libsubcmd/libsubcmd-in.o
  AR      /tmp/build/perf/libsubcmd/libsubcmd.a
  LD      /tmp/build/perf/libbpf/staticobjs/libbpf-in.o
  LINK    /tmp/build/perf/libbpf/libbpf.a

Auto-detecting system features:
...                         clang-bpf-co-re: [ on  ]
...                                    llvm: [ on  ]
...                                  libcap: [ on  ]
...                                  libbfd: [ on  ]

  MKDIR   /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf
  MKDIR   /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/
  MKDIR   /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/hashmap.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/relo_core.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_internal.h
  GEN     /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/bpf_helper_defs.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/btf.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_legacy.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_common.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_helpers.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_tracing.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_core_read.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_endian.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_version.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/skel_internal.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/usdt.bpf.h
  INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_helper_defs.h
  INSTALL libbpf_headers
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/bpf.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/nlattr.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf_errno.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/str_error.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/netlink.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/bpf_prog_linfo.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf_probes.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/hashmap.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf_dump.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/ringbuf.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/strset.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/linker.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/gen_loader.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/zip.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/usdt.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/relo_core.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf_relocate.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/elf.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/features.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf_iter.o
  LD      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf-in.o
  LINK    /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/libbpf.a
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/main.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/common.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/json_writer.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/gen.o
  CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/btf.o
  LINK    /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/bpftool
make[1]: *** [Makefile.perf:287: sub-make] Error 2
make: *** [Makefile:76: all] Error 2
make: Leaving directory '/git/perf-6.15.0-rc2/tools/perf'
+ exit 1
toolsbuilder@number:~/git/linux-tools-container-builds$

Ian Rogers April 19, 2025, 4:22 a.m. UTC | #2

On Fri, Apr 18, 2025 at 2:29 PM Arnaldo Carvalho de Melo
<acme@kernel.org> wrote:
>
> On Thu, Apr 17, 2025 at 04:07:21PM -0700, Ian Rogers wrote:
> > Linking against libcapstone and libLLVM can be a significant increase
> > in dependencies and file size if building statically. For something
> > like `perf record` the disassembler and addr2line functionality won't
> > be used. Support dynamically loading these libraries using dlopen and
> > then calling the appropriate functions found using dlsym.
> >
> > BUILD_NONDISTRO is used to build perf against the license incompatible
> > libbfd and libiberty libraries. As this has been opt-in for nearly 2
> > years, commit dd317df07207 ("perf build: Make binutil libraries opt
> > in"), remove the code to simplify the code base.
> >
> > The patch series:
> > 1) does some initial clean up;
> > 2) moves the capstone and LLVM code to their own C files,
> > 3) simplifies a little the capstone code;
> > 4) adds perf_ variants of the functions that will either directly call
> >    the function or use dlsym to discover it;
> > 5) adds BPF JIT disassembly support to LLVM and capstone disassembly;
> > 6) removes the BUILD_NONDISTRO code, reduces scope and removes what's possible;
> > 7) adds fallback to srcline's addr2line so that llvm_addr2line is
> >    tried first and then the forked command tried next, moving the code
> >    for forking out of the main srcline.c file in the process.
> >
> > The addr2line LLVM functionality is written in C++. To avoid linking
> > against libLLVM for this, a new LIBLLVM_DYNAMIC option is added where
> > the C++ code with the libLLVM dependency will be built into a
> > libperf-llvm.so and that dlsym-ed and called against. Ideally LLVM
> > would extend their C API to avoid this.
> >
> > The libbfd BPF disassembly supported source lines, this wasn't ported
> > to the capstone and LLVM disassembly.
>
> Doing the build tests I noticed, so far:
>
>   29    58.92 opensuse:15.4                 : FAIL gcc version 7.5.0 (SUSE Linux)
> <SNIP>
> + make NO_LIBTRACEEVENT=1 ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBBPF=1 -C tools/perf O=/tmp/build/perf
> make: Entering directory '/git/perf-6.15.0-rc2/tools/perf'
>   BUILD:   Doing 'make -j32' parallel build
> Warning: Skipped check-headers due to missing ../../include
> Makefile.config:560: No elfutils/debuginfod.h found, no debuginfo server support, please install libdebuginfod-dev/elfutils-debuginfod-client-devel or equivalent
> Makefile.config:687: Warning: Disabled BPF skeletons as libbpf is required
> Makefile.config:1039: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
> update-alternatives: error: no alternatives for java
> update-alternatives: error: no alternatives for java
> Makefile.config:1100: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
> Makefile.config:1113: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev
>
> Auto-detecting system features:
> ...                                   libdw: [ on  ]
> ...                                   glibc: [ on  ]
> ...                                  libelf: [ on  ]
> ...                                 libnuma: [ on  ]
> ...                  numa_num_possible_cpus: [ on  ]
> ...                                 libperl: [ on  ]
> ...                               libpython: [ on  ]
> ...                               libcrypto: [ on  ]
> ...                             libcapstone: [ on  ]
> ...                               llvm-perf: [ on  ]
> ...                                    zlib: [ on  ]
> ...                                    lzma: [ on  ]
> ...                               get_cpuid: [ on  ]
> ...                                     bpf: [ on  ]
> ...                                  libaio: [ on  ]
> ...                                 libzstd: [ on  ]
>
>   PERF_VERSION = 6.15.rc2.gfbcac9367d45
>   GEN     /tmp/build/perf/common-cmds.h
>   GEN     /tmp/build/perf/arch/arm64/include/generated/asm/sysreg-defs.h
>   GEN     perf-archive
>   GEN     perf-iostat
>   CC      /tmp/build/perf/dlfilters/dlfilter-test-api-v0.o
>   CC      /tmp/build/perf/dlfilters/dlfilter-test-api-v2.o
>   CC      /tmp/build/perf/dlfilters/dlfilter-show-cycles.o
>   INSTALL /tmp/build/perf/libapi/include/api/cpu.h
>   INSTALL /tmp/build/perf/libapi/include/api/debug.h
>   INSTALL /tmp/build/perf/libapi/include/api/io.h
>   MKDIR   /tmp/build/perf/libapi/fd/
>   INSTALL /tmp/build/perf/libapi/include/api/io_dir.h
>   CC      /tmp/build/perf/libapi/cpu.o
>   MKDIR   /tmp/build/perf/libapi/fs/
>   INSTALL /tmp/build/perf/libapi/include/api/fd/array.h
>   CC      /tmp/build/perf/libapi/debug.o
>   MKDIR   /tmp/build/perf/libapi/fs/
>   MKDIR   /tmp/build/perf/libapi/fs/
>   CC      /tmp/build/perf/libapi/fd/array.o
>   INSTALL /tmp/build/perf/libapi/include/api/fs/tracing_path.h
>   CC      /tmp/build/perf/libapi/str_error_r.o
>   INSTALL /tmp/build/perf/libapi/include/api/fs/fs.h
>   CC      /tmp/build/perf/libapi/fs/tracing_path.o
>   CC      /tmp/build/perf/libapi/fs/fs.o
>   CC      /tmp/build/perf/libapi/fs/cgroup.o
>   INSTALL libapi_headers
>   INSTALL /tmp/build/perf/libperf/include/perf/bpf_perf.h
>   INSTALL /tmp/build/perf/libperf/include/perf/core.h
>   INSTALL /tmp/build/perf/libperf/include/perf/cpumap.h
>   INSTALL /tmp/build/perf/libperf/include/perf/threadmap.h
>   CC      /tmp/build/perf/libperf/core.o
>   CC      /tmp/build/perf/libperf/cpumap.o
>   CC      /tmp/build/perf/libperf/threadmap.o
>   INSTALL /tmp/build/perf/libperf/include/perf/evlist.h
>   CC      /tmp/build/perf/libperf/evlist.o
>   CC      /tmp/build/perf/libperf/evsel.o
>   CC      /tmp/build/perf/libperf/mmap.o
>   CC      /tmp/build/perf/libperf/zalloc.o
>   INSTALL /tmp/build/perf/libsubcmd/include/subcmd/exec-cmd.h
>   INSTALL /tmp/build/perf/libperf/include/perf/evsel.h
>   CC      /tmp/build/perf/libperf/xyarray.o
>   CC      /tmp/build/perf/libperf/lib.o
>   INSTALL /tmp/build/perf/libsubcmd/include/subcmd/help.h
>   INSTALL /tmp/build/perf/libsubcmd/include/subcmd/pager.h
>   LINK    /tmp/build/perf/dlfilters/dlfilter-test-api-v0.so
>   INSTALL /tmp/build/perf/libsubcmd/include/subcmd/parse-options.h
>   LD      /tmp/build/perf/libapi/fd/libapi-in.o
>   INSTALL /tmp/build/perf/libsubcmd/include/subcmd/run-command.h
>   INSTALL libsubcmd_headers
>   LINK    /tmp/build/perf/dlfilters/dlfilter-test-api-v2.so
>   INSTALL /tmp/build/perf/libperf/include/perf/event.h
>   INSTALL /tmp/build/perf/libsymbol/include/symbol/kallsyms.h
>   CC      /tmp/build/perf/libsymbol/kallsyms.o
>   INSTALL /tmp/build/perf/libperf/include/perf/mmap.h
>   INSTALL /tmp/build/perf/libperf/include/internal/cpumap.h
>   INSTALL /tmp/build/perf/libperf/include/internal/evlist.h
>   INSTALL /tmp/build/perf/libperf/include/internal/evsel.h
>   INSTALL /tmp/build/perf/libperf/include/internal/rc_check.h
>   INSTALL /tmp/build/perf/libperf/include/internal/mmap.h
>   INSTALL /tmp/build/perf/libperf/include/internal/threadmap.h
>   INSTALL /tmp/build/perf/libperf/include/internal/lib.h
>   INSTALL /tmp/build/perf/libperf/include/internal/xyarray.h
>   LINK    /tmp/build/perf/dlfilters/dlfilter-show-cycles.so
>   LD      /tmp/build/perf/libapi/fs/libapi-in.o
> evlist.c:28:6: error: no previous prototype for 'perf_evlist__init' [-Werror=missing-prototypes]
>  void perf_evlist__init(struct perf_evlist *evlist)
>       ^~~~~~~~~~~~~~~~~

Hmm.. but on line 8 of tools/lib/perf/evlist.c is:
#include <internal/evlist.h>
is there a libperf installed somewhere? I thought we were just
statically linking currently. I'm not sure what I can do to resolve
this, it seems like a set up issue.

Thanks,
Ian

> evlist.c: In function 'perf_evlist__init':
> evlist.c:30:24: error: dereferencing pointer to incomplete type 'struct perf_evlist'
>   INIT_LIST_HEAD(&evlist->entries);
>                         ^~
> evlist.c:33:2: error: implicit declaration of function 'perf_evlist__reset_id_hash'; did you mean 'perf_evlist__set_maps'? [-Werror=implicit-function-declaration]
>   perf_evlist__reset_id_hash(evlist);
>   ^~~~~~~~~~~~~~~~~~~~~~~~~~
>   perf_evlist__set_maps
> evlist.c:33:2: error: nested extern declaration of 'perf_evlist__reset_id_hash' [-Werror=nested-externs]
> evlist.c: In function 'perf_evlist__purge':
> evlist.c:157:2: error: implicit declaration of function 'perf_evlist__for_each_entry_safe'; did you mean 'hlist_for_each_entry_safe'? [-Werror=implicit-function-declaration]
>   perf_evlist__for_each_entry_safe(evlist, n, pos) {
>   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   hlist_for_each_entry_safe
> evlist.c:157:2: error: nested extern declaration of 'perf_evlist__for_each_entry_safe' [-Werror=nested-externs]
> evlist.c:157:51: error: expected ';' before '{' token
>   perf_evlist__for_each_entry_safe(evlist, n, pos) {
>                                                    ^
> evlist.c: At top level:
> evlist.c:165:6: error: no previous prototype for 'perf_evlist__exit' [-Werror=missing-prototypes]
>  void perf_evlist__exit(struct perf_evlist *evlist)
>       ^~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__open':
> evlist.c:217:2: error: implicit declaration of function 'perf_evlist__for_each_entry'; did you mean 'perf_evlist__for_each_evsel'? [-Werror=implicit-function-declaration]
>   perf_evlist__for_each_entry(evlist, evsel) {
>   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>   perf_evlist__for_each_evsel
> evlist.c:217:2: error: nested extern declaration of 'perf_evlist__for_each_entry' [-Werror=nested-externs]
> evlist.c:217:45: error: expected ';' before '{' token
>   perf_evlist__for_each_entry(evlist, evsel) {
>                                              ^
> evlist.c:225:1: error: label 'out_err' defined but not used [-Werror=unused-label]
>  out_err:
>  ^~~~~~~
>   INSTALL libperf_headers
> evlist.c: In function 'perf_evlist__close':
> evlist.c:234:2: error: implicit declaration of function 'perf_evlist__for_each_entry_reverse'; did you mean 'list_for_each_entry_reverse'? [-Werror=implicit-function-declaration]
>   perf_evlist__for_each_entry_reverse(evlist, evsel)
>   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   list_for_each_entry_reverse
> evlist.c:234:2: error: nested extern declaration of 'perf_evlist__for_each_entry_reverse' [-Werror=nested-externs]
> evlist.c:235:3: error: expected ';' before 'perf_evsel__close'
>    perf_evsel__close(evsel);
>    ^~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__enable':
> evlist.c:243:3: error: expected ';' before 'perf_evsel__enable'
>    perf_evsel__enable(evsel);
>    ^~~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__disable':
> evlist.c:251:3: error: expected ';' before 'perf_evsel__disable'
>    perf_evsel__disable(evsel);
>    ^~~~~~~~~~~~~~~~~~~
> evlist.c: At top level:
> evlist.c:254:5: error: no previous prototype for 'perf_evlist__read_format' [-Werror=missing-prototypes]
>  u64 perf_evlist__read_format(struct perf_evlist *evlist)
>      ^~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__read_format':
> evlist.c:256:29: error: implicit declaration of function 'perf_evlist__first'; did you mean 'perf_evlist__init'? [-Werror=implicit-function-declaration]
>   struct perf_evsel *first = perf_evlist__first(evlist);
>                              ^~~~~~~~~~~~~~~~~~
>                              perf_evlist__init
> evlist.c:256:29: error: nested extern declaration of 'perf_evlist__first' [-Werror=nested-externs]
> evlist.c:256:29: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]
>   INSTALL libsymbol_headers
> evlist.c: In function 'perf_evlist__id_hash':
> evlist.c:272:26: error: 'PERF_EVLIST__HLIST_BITS' undeclared (first use in this function); did you mean 'PERF_SAMPLE_ID__HLIST_BITS'?
>   hash = hash_64(sid->id, PERF_EVLIST__HLIST_BITS);
>                           ^~~~~~~~~~~~~~~~~~~~~~~
>                           PERF_SAMPLE_ID__HLIST_BITS
> evlist.c:272:26: note: each undeclared identifier is reported only once for each function it appears in
> evlist.c:267:6: error: variable 'hash' set but not used [-Werror=unused-but-set-variable]
>   int hash;
>       ^~~~
> evlist.c: At top level:
> evlist.c:276:6: error: no previous prototype for 'perf_evlist__reset_id_hash' [-Werror=missing-prototypes]
>  void perf_evlist__reset_id_hash(struct perf_evlist *evlist)
>       ^~~~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c:276:6: error: conflicting types for 'perf_evlist__reset_id_hash' [-Werror]
> evlist.c:33:2: note: previous implicit declaration of 'perf_evlist__reset_id_hash' was here
>   perf_evlist__reset_id_hash(evlist);
>   ^~~~~~~~~~~~~~~~~~~~~~~~~~
>   LD      /tmp/build/perf/libapi/libapi-in.o
> evlist.c: In function 'perf_evlist__reset_id_hash':
> evlist.c:280:18: error: 'PERF_EVLIST__HLIST_SIZE' undeclared (first use in this function); did you mean 'PERF_SAMPLE_ID__HLIST_SIZE'?
>   for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
>                   ^~~~~~~~~~~~~~~~~~~~~~~
>                   PERF_SAMPLE_ID__HLIST_SIZE
> evlist.c: At top level:
> evlist.c:284:6: error: no previous prototype for 'perf_evlist__id_add' [-Werror=missing-prototypes]
>  void perf_evlist__id_add(struct perf_evlist *evlist,
>       ^~~~~~~~~~~~~~~~~~~
> evlist.c:295:5: error: no previous prototype for 'perf_evlist__id_add_fd' [-Werror=missing-prototypes]
>  int perf_evlist__id_add_fd(struct perf_evlist *evlist,
>      ^~~~~~~~~~~~~~~~~~~~~~
> evlist.c:339:5: error: no previous prototype for 'perf_evlist__alloc_pollfd' [-Werror=missing-prototypes]
>  int perf_evlist__alloc_pollfd(struct perf_evlist *evlist)
>      ^~~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__alloc_pollfd':
> evlist.c:346:45: error: expected ';' before '{' token
>   perf_evlist__for_each_entry(evlist, evsel) {
>                                              ^
> evlist.c:343:6: error: unused variable 'nfds' [-Werror=unused-variable]
>   int nfds = 0;
>       ^~~~
> evlist.c:342:6: error: unused variable 'nr_threads' [-Werror=unused-variable]
>   int nr_threads = perf_thread_map__nr(evlist->threads);
>       ^~~~~~~~~~
> evlist.c:341:6: error: unused variable 'nr_cpus' [-Werror=unused-variable]
>   int nr_cpus = perf_cpu_map__nr(evlist->all_cpus);
>       ^~~~~~~
> evlist.c: At top level:
> evlist.c:360:5: error: no previous prototype for 'perf_evlist__add_pollfd' [-Werror=missing-prototypes]
>  int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
>      ^~~~~~~~~~~~~~~~~~~~~~~
> evlist.c:469:51: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>  mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>                                                    ^~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'mmap_per_evsel':
> evlist.c:477:45: error: expected ';' before '{' token
>   perf_evlist__for_each_entry(evlist, evsel) {
>                                              ^
> evlist.c:475:6: error: unused variable 'revent' [-Werror=unused-variable]
>   int revent;
>       ^~~~~~
> evlist.c:473:18: error: unused variable 'evlist_cpu' [-Werror=unused-variable]
>   struct perf_cpu evlist_cpu = perf_cpu_map__cpu(evlist->all_cpus, cpu_idx);
>                   ^~~~~~~~~~
> evlist.c:560:1: error: no return statement in function returning non-void [-Werror=return-type]
>  }
>  ^
> evlist.c:469:73: error: unused parameter 'ops' [-Werror=unused-parameter]
>  mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>                                                                          ^~~
> evlist.c:470:13: error: unused parameter 'idx' [-Werror=unused-parameter]
>          int idx, struct perf_mmap_param *mp, int cpu_idx,
>              ^~~
> evlist.c:470:42: error: unused parameter 'mp' [-Werror=unused-parameter]
>          int idx, struct perf_mmap_param *mp, int cpu_idx,
>                                           ^~
> evlist.c:471:13: error: unused parameter 'thread' [-Werror=unused-parameter]
>          int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
>              ^~~~~~
> evlist.c:471:26: error: unused parameter '_output' [-Werror=unused-parameter]
>          int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
>                           ^~~~~~~
> evlist.c:471:40: error: unused parameter '_output_overwrite' [-Werror=unused-parameter]
>          int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
>                                         ^~~~~~~~~~~~~~~~~
> evlist.c:471:64: error: unused parameter 'nr_mmaps' [-Werror=unused-parameter]
>          int thread, int *_output, int *_output_overwrite, int *nr_mmaps)
>                                                                 ^~~~~~~~
> evlist.c: At top level:
> evlist.c:563:52: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>  mmap_per_thread(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>                                                     ^~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'mmap_per_thread':
> evlist.c:579:30: error: passing argument 2 of 'mmap_per_evsel' from incompatible pointer type [-Werror=incompatible-pointer-types]
>    if (mmap_per_evsel(evlist, ops, idx, mp, 0, thread, &output,
>                               ^~~
> evlist.c:469:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
>  mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>  ^~~~~~~~~~~~~~
> evlist.c:589:30: error: passing argument 2 of 'mmap_per_evsel' from incompatible pointer type [-Werror=incompatible-pointer-types]
>    if (mmap_per_evsel(evlist, ops, idx, mp, cpu, 0, &output,
>                               ^~~
> evlist.c:469:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
>  mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>  ^~~~~~~~~~~~~~
> evlist.c: At top level:
> evlist.c:605:49: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>  mmap_per_cpu(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>                                                  ^~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'mmap_per_cpu':
> evlist.c:620:31: error: passing argument 2 of 'mmap_per_evsel' from incompatible pointer type [-Werror=incompatible-pointer-types]
>     if (mmap_per_evsel(evlist, ops, cpu, mp, cpu,
>                                ^~~
> evlist.c:469:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
>  mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>  ^~~~~~~~~~~~~~
> evlist.c: At top level:
> evlist.c:653:13: error: 'struct perf_evlist_mmap_ops' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>       struct perf_evlist_mmap_ops *ops,
>              ^~~~~~~~~~~~~~~~~~~~
> evlist.c:652:5: error: no previous prototype for 'perf_evlist__mmap_ops' [-Werror=missing-prototypes]
>  int perf_evlist__mmap_ops(struct perf_evlist *evlist,
>      ^~~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__mmap_ops':
> evlist.c:659:18: error: dereferencing pointer to incomplete type 'struct perf_evlist_mmap_ops'
>   if (!ops || !ops->get || !ops->mmap)
>                   ^~
> evlist.c:666:45: error: expected ';' before '{' token
>   perf_evlist__for_each_entry(evlist, evsel) {
>                                              ^
> evlist.c:677:34: error: passing argument 2 of 'mmap_per_thread' from incompatible pointer type [-Werror=incompatible-pointer-types]
>    return mmap_per_thread(evlist, ops, mp);
>                                   ^~~
> evlist.c:563:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
>  mmap_per_thread(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>  ^~~~~~~~~~~~~~~
> evlist.c:679:30: error: passing argument 2 of 'mmap_per_cpu' from incompatible pointer type [-Werror=incompatible-pointer-types]
>   return mmap_per_cpu(evlist, ops, mp);
>                               ^~~
> evlist.c:605:1: note: expected 'struct perf_evlist_mmap_ops *' but argument is of type 'struct perf_evlist_mmap_ops *'
>  mmap_per_cpu(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops,
>  ^~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__mmap':
> evlist.c:685:9: error: variable 'ops' has initializer but incomplete type
>   struct perf_evlist_mmap_ops ops = {
>          ^~~~~~~~~~~~~~~~~~~~
> evlist.c:686:4: error: 'struct perf_evlist_mmap_ops' has no member named 'get'
>    .get  = perf_evlist__mmap_cb_get,
>     ^~~
> evlist.c:686:11: error: excess elements in struct initializer [-Werror]
>    .get  = perf_evlist__mmap_cb_get,
>            ^~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c:686:11: note: (near initialization for 'ops')
> evlist.c:687:4: error: 'struct perf_evlist_mmap_ops' has no member named 'mmap'
>    .mmap = perf_evlist__mmap_cb_mmap,
>     ^~~~
> evlist.c:687:11: error: excess elements in struct initializer [-Werror]
>    .mmap = perf_evlist__mmap_cb_mmap,
>            ^~~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c:687:11: note: (near initialization for 'ops')
> evlist.c:685:30: error: storage size of 'ops' isn't known
>   struct perf_evlist_mmap_ops ops = {
>                               ^~~
> evlist.c:685:30: error: unused variable 'ops' [-Werror=unused-variable]
> evlist.c: At top level:
> evlist.c:723:6: error: no previous prototype for '__perf_evlist__set_leader' [-Werror=missing-prototypes]
>  void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader)
>       ^~~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c: In function '__perf_evlist__set_leader':
> evlist.c:728:2: error: implicit declaration of function '__perf_evlist__for_each_entry'; did you mean 'perf_evlist__for_each_evsel'? [-Werror=implicit-function-declaration]
>   __perf_evlist__for_each_entry(list, evsel) {
>   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   perf_evlist__for_each_evsel
> evlist.c:728:2: error: nested extern declaration of '__perf_evlist__for_each_entry' [-Werror=nested-externs]
> evlist.c:728:45: error: expected ';' before '{' token
>   __perf_evlist__for_each_entry(list, evsel) {
>                                              ^
> evlist.c:726:6: error: unused variable 'n' [-Werror=unused-variable]
>   int n = 0;
>       ^
> evlist.c:723:75: error: unused parameter 'leader' [-Werror=unused-parameter]
>  void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader)
>                                                                            ^~~~~~
> evlist.c: At top level:
> evlist.c:762:6: error: no previous prototype for 'perf_evlist__go_system_wide' [-Werror=missing-prototypes]
>  void perf_evlist__go_system_wide(struct perf_evlist *evlist, struct perf_evsel *evsel)
>       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c: In function 'perf_evlist__filter_pollfd':
> evlist.c:386:1: error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^
> evlist.c: In function 'perf_evlist__poll':
> evlist.c:391:1: error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^
> evlist.c: In function 'perf_evlist__mmap':
> evlist.c:693:1: error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^
> evlist.c: In function 'perf_evlist__next_mmap':
> evlist.c:721:1: error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^
> At top level:
> evlist.c:459:13: error: 'perf_evlist__set_mmap_first' defined but not used [-Werror=unused-function]
>  static void perf_evlist__set_mmap_first(struct perf_evlist *evlist, struct perf_mmap *map,
>              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> evlist.c:420:13: error: 'perf_evsel__set_sid_idx' defined but not used [-Werror=unused-function]
>  static void perf_evsel__set_sid_idx(struct perf_evsel *evsel, int idx, int cpu, int thread)
>              ^~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make[4]: *** [/git/perf-6.15.0-rc2/tools/build/Makefile.build:85: /tmp/build/perf/libperf/evlist.o] Error 1
> make[4]: *** Waiting for unfinished jobs....
>   AR      /tmp/build/perf/libapi/libapi.a
>   CC      /tmp/build/perf/libsubcmd/exec-cmd.o
>   CC      /tmp/build/perf/libsubcmd/help.o
>   CC      /tmp/build/perf/libsubcmd/pager.o
>   CC      /tmp/build/perf/libsubcmd/run-command.o
>   CC      /tmp/build/perf/libsubcmd/parse-options.o
>   CC      /tmp/build/perf/libsubcmd/sigchain.o
>   CC      /tmp/build/perf/libsubcmd/subcmd-config.o
>   LD      /tmp/build/perf/libsymbol/libsymbol-in.o
>   AR      /tmp/build/perf/libsymbol/libsymbol.a
> make[3]: *** [Makefile:103: /tmp/build/perf/libperf/libperf-in.o] Error 2
> make[2]: *** [Makefile.perf:976: /tmp/build/perf/libperf/libperf.a] Error 2
> make[2]: *** Waiting for unfinished jobs....
>   LD      /tmp/build/perf/libsubcmd/libsubcmd-in.o
>   AR      /tmp/build/perf/libsubcmd/libsubcmd.a
> make[1]: *** [Makefile.perf:287: sub-make] Error 2
> make: *** [Makefile:76: all] Error 2
> make: Leaving directory '/git/perf-6.15.0-rc2/tools/perf'
> + exit 1
> toolsbuilder@number:~/git/linux-tools-container-builds$
>
>
>   23    18.51 fedora:38                     : FAIL gcc version 13.2.1 20240316 (Red Hat 13.2.1-7) (GCC)
> <SNIP>
> evsel.c:23:6: error: no previous prototype for 'perf_evsel__init' [-Werror=missing-prototypes]
>    23 | void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
>       |      ^~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__init':
> evsel.c:26:30: error: invalid use of undefined type 'struct perf_evsel'
>    26 |         INIT_LIST_HEAD(&evsel->node);
>       |                              ^~
> evsel.c:27:30: error: invalid use of undefined type 'struct perf_evsel'
>    27 |         INIT_LIST_HEAD(&evsel->per_stream_periods);
>       |                              ^~
> evsel.c:28:14: error: invalid use of undefined type 'struct perf_evsel'
>    28 |         evsel->attr = *attr;
>       |              ^~
> evsel.c:28:23: error: invalid use of undefined type 'struct perf_event_attr'
>    28 |         evsel->attr = *attr;
>       |                       ^
> evsel.c:29:14: error: invalid use of undefined type 'struct perf_evsel'
>    29 |         evsel->idx  = idx;
>       |              ^~
> evsel.c:30:14: error: invalid use of undefined type 'struct perf_evsel'
>    30 |         evsel->leader = evsel;
>       |              ^~
> evsel.c: In function 'perf_evsel__new':
> evsel.c:35:49: error: invalid application of 'sizeof' to incomplete type 'struct perf_evsel'
>    35 |         struct perf_evsel *evsel = zalloc(sizeof(*evsel));
>       |                                                 ^
> evsel.c: At top level:
> evsel.c:54:5: error: no previous prototype for 'perf_evsel__alloc_fd' [-Werror=missing-prototypes]
>    54 | int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
>       |     ^~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__alloc_fd':
> evsel.c:56:14: error: invalid use of undefined type 'struct perf_evsel'
>    56 |         evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int));
>       |              ^~
> evsel.c:58:18: error: invalid use of undefined type 'struct perf_evsel'
>    58 |         if (evsel->fd) {
>       |                  ^~
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:63:43: note: in expansion of macro 'FD'
>    63 |                                 int *fd = FD(evsel, idx, thread);
>       |                                           ^~
> evsel.c:71:21: error: invalid use of undefined type 'struct perf_evsel'
>    71 |         return evsel->fd != NULL ? 0 : -ENOMEM;
>       |                     ^~
> evsel.c: In function 'perf_evsel__alloc_mmap':
> evsel.c:76:14: error: invalid use of undefined type 'struct perf_evsel'
>    76 |         evsel->mmap = xyarray__new(ncpus, nthreads, sizeof(struct perf_mmap));
>       |              ^~
> evsel.c:78:21: error: invalid use of undefined type 'struct perf_evsel'
>    78 |         return evsel->mmap != NULL ? 0 : -ENOMEM;
>       |                     ^~
> evsel.c: In function 'get_group_fd':
> evsel.c:91:42: error: invalid use of undefined type 'struct perf_evsel'
>    91 |         struct perf_evsel *leader = evsel->leader;
>       |                                          ^~
> evsel.c:103:20: error: invalid use of undefined type 'struct perf_evsel'
>   103 |         if (!leader->fd)
>       |                    ^~
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:106:14: note: in expansion of macro 'FD'
>   106 |         fd = FD(leader, cpu_map_idx, thread);
>       |              ^~
> evsel.c: In function 'perf_evsel__open':
> evsel.c:145:18: error: invalid use of undefined type 'struct perf_evsel'
>   145 |         if (evsel->fd == NULL &&
>       |                  ^~
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:153:36: note: in expansion of macro 'FD'
>   153 |                         evsel_fd = FD(evsel, idx, thread);
>       |                                    ^~
> evsel.c:163:56: error: invalid use of undefined type 'struct perf_evsel'
>   163 |                         fd = sys_perf_event_open(&evsel->attr,
>       |                                                        ^~
> evsel.c: In function 'perf_evsel__close_fd_cpu':
> evsel.c:186:55: error: invalid use of undefined type 'struct perf_evsel'
>   186 |         for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
>       |                                                       ^~
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:187:27: note: in expansion of macro 'FD'
>   187 |                 int *fd = FD(evsel, cpu_map_idx, thread);
>       |                           ^~
> evsel.c: At top level:
> evsel.c:196:6: error: no previous prototype for 'perf_evsel__close_fd' [-Werror=missing-prototypes]
>   196 | void perf_evsel__close_fd(struct perf_evsel *evsel)
>       |      ^~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__close_fd':
> evsel.c:198:53: error: invalid use of undefined type 'struct perf_evsel'
>   198 |         for (int idx = 0; idx < xyarray__max_x(evsel->fd); idx++)
>       |                                                     ^~
> evsel.c: At top level:
> evsel.c:202:6: error: no previous prototype for 'perf_evsel__free_fd' [-Werror=missing-prototypes]
>   202 | void perf_evsel__free_fd(struct perf_evsel *evsel)
>       |      ^~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__free_fd':
> evsel.c:204:30: error: invalid use of undefined type 'struct perf_evsel'
>   204 |         xyarray__delete(evsel->fd);
>       |                              ^~
> evsel.c:205:14: error: invalid use of undefined type 'struct perf_evsel'
>   205 |         evsel->fd = NULL;
>       |              ^~
> evsel.c: In function 'perf_evsel__close':
> evsel.c:210:18: error: invalid use of undefined type 'struct perf_evsel'
>   210 |         if (evsel->fd == NULL)
>       |                  ^~
> evsel.c: In function 'perf_evsel__close_cpu':
> evsel.c:219:18: error: invalid use of undefined type 'struct perf_evsel'
>   219 |         if (evsel->fd == NULL)
>       |                  ^~
> evsel.c: In function 'perf_evsel__munmap':
> evsel.c:229:18: error: invalid use of undefined type 'struct perf_evsel'
>   229 |         if (evsel->fd == NULL || evsel->mmap == NULL)
>       |                  ^~
> evsel.c:229:39: error: invalid use of undefined type 'struct perf_evsel'
>   229 |         if (evsel->fd == NULL || evsel->mmap == NULL)
>       |                                       ^~
> evsel.c:232:49: error: invalid use of undefined type 'struct perf_evsel'
>   232 |         for (idx = 0; idx < xyarray__max_x(evsel->fd); idx++) {
>       |                                                 ^~
> evsel.c:233:63: error: invalid use of undefined type 'struct perf_evsel'
>   233 |                 for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
>       |                                                               ^~
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:234:35: note: in expansion of macro 'FD'
>   234 |                         int *fd = FD(evsel, idx, thread);
>       |                                   ^~
> evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                ^~
> evsel.c:239:43: note: in expansion of macro 'MMAP'
>   239 |                         perf_mmap__munmap(MMAP(evsel, idx, thread));
>       |                                           ^~~~
> evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                                                                    ^~
> evsel.c:239:43: note: in expansion of macro 'MMAP'
>   239 |                         perf_mmap__munmap(MMAP(evsel, idx, thread));
>       |                                           ^~~~
> evsel.c:243:30: error: invalid use of undefined type 'struct perf_evsel'
>   243 |         xyarray__delete(evsel->mmap);
>       |                              ^~
> evsel.c:244:14: error: invalid use of undefined type 'struct perf_evsel'
>   244 |         evsel->mmap = NULL;
>       |              ^~
> evsel.c: In function 'perf_evsel__mmap':
> evsel.c:255:18: error: invalid use of undefined type 'struct perf_evsel'
>   255 |         if (evsel->fd == NULL || evsel->mmap)
>       |                  ^~
> evsel.c:255:39: error: invalid use of undefined type 'struct perf_evsel'
>   255 |         if (evsel->fd == NULL || evsel->mmap)
>       |                                       ^~
> evsel.c:258:63: error: invalid use of undefined type 'struct perf_evsel'
>   258 |         if (perf_evsel__alloc_mmap(evsel, xyarray__max_x(evsel->fd), xyarray__max_y(evsel->fd)) < 0)
>       |                                                               ^~
> evsel.c:258:90: error: invalid use of undefined type 'struct perf_evsel'
>   258 |         if (perf_evsel__alloc_mmap(evsel, xyarray__max_x(evsel->fd), xyarray__max_y(evsel->fd)) < 0)
>       |                                                                                          ^~
> evsel.c:261:49: error: invalid use of undefined type 'struct perf_evsel'
>   261 |         for (idx = 0; idx < xyarray__max_x(evsel->fd); idx++) {
>       |                                                 ^~
> evsel.c:262:63: error: invalid use of undefined type 'struct perf_evsel'
>   262 |                 for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
>       |                                                               ^~
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:263:35: note: in expansion of macro 'FD'
>   263 |                         int *fd = FD(evsel, idx, thread);
>       |                                   ^~
> evsel.c:265:70: error: invalid use of undefined type 'struct perf_evsel'
>   265 |                         struct perf_cpu cpu = perf_cpu_map__cpu(evsel->cpus, idx);
>       |                                                                      ^~
> evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                ^~
> evsel.c:270:31: note: in expansion of macro 'MMAP'
>   270 |                         map = MMAP(evsel, idx, thread);
>       |                               ^~~~
> evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                                                                    ^~
> evsel.c:270:31: note: in expansion of macro 'MMAP'
>   270 |                         map = MMAP(evsel, idx, thread);
>       |                               ^~~~
> evsel.c: In function 'perf_evsel__mmap_base':
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:286:19: note: in expansion of macro 'FD'
>   286 |         int *fd = FD(evsel, cpu_map_idx, thread);
>       |                   ^~
> evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                ^~
> evsel.c:288:38: note: in expansion of macro 'MMAP'
>   288 |         if (fd == NULL || *fd < 0 || MMAP(evsel, cpu_map_idx, thread) == NULL)
>       |                                      ^~~~
> evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                                                                    ^~
> evsel.c:288:38: note: in expansion of macro 'MMAP'
>   288 |         if (fd == NULL || *fd < 0 || MMAP(evsel, cpu_map_idx, thread) == NULL)
>       |                                      ^~~~
> evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                ^~
> evsel.c:291:16: note: in expansion of macro 'MMAP'
>   291 |         return MMAP(evsel, cpu_map_idx, thread)->base;
>       |                ^~~~
> evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                                                                    ^~
> evsel.c:291:16: note: in expansion of macro 'MMAP'
>   291 |         return MMAP(evsel, cpu_map_idx, thread)->base;
>       |                ^~~~
> evsel.c: At top level:
> evsel.c:294:5: error: no previous prototype for 'perf_evsel__read_size' [-Werror=missing-prototypes]
>   294 | int perf_evsel__read_size(struct perf_evsel *evsel)
>       |     ^~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__read_size':
> evsel.c:296:32: error: invalid use of undefined type 'struct perf_evsel'
>   296 |         u64 read_format = evsel->attr.read_format;
>       |                                ^~
> evsel.c:301:27: error: 'PERF_FORMAT_TOTAL_TIME_ENABLED' undeclared (first use in this function)
>   301 |         if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
>       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c:301:27: note: each undeclared identifier is reported only once for each function it appears in
> evsel.c:304:27: error: 'PERF_FORMAT_TOTAL_TIME_RUNNING' undeclared (first use in this function)
>   304 |         if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
>       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c:307:27: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
>   307 |         if (read_format & PERF_FORMAT_ID)
>       |                           ^~~~~~~~~~~~~~
> evsel.c:310:27: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
>   310 |         if (read_format & PERF_FORMAT_LOST)
>       |                           ^~~~~~~~~~~~~~~~
> evsel.c:313:27: error: 'PERF_FORMAT_GROUP' undeclared (first use in this function)
>   313 |         if (read_format & PERF_FORMAT_GROUP) {
>       |                           ^~~~~~~~~~~~~~~~~
> evsel.c:314:27: error: invalid use of undefined type 'struct perf_evsel'
>   314 |                 nr = evsel->nr_members;
>       |                           ^~
> evsel.c: In function 'perf_evsel__read_group':
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:327:19: note: in expansion of macro 'FD'
>   327 |         int *fd = FD(evsel, cpu_map_idx, thread);
>       |                   ^~
> evsel.c:328:32: error: invalid use of undefined type 'struct perf_evsel'
>   328 |         u64 read_format = evsel->attr.read_format;
>       |                                ^~
> evsel.c:348:27: error: 'PERF_FORMAT_TOTAL_TIME_ENABLED' undeclared (first use in this function)
>   348 |         if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
>       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c:350:27: error: 'PERF_FORMAT_TOTAL_TIME_RUNNING' undeclared (first use in this function)
>   350 |         if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
>       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c:355:27: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
>   355 |         if (read_format & PERF_FORMAT_ID)
>       |                           ^~~~~~~~~~~~~~
> evsel.c:357:27: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
>   357 |         if (read_format & PERF_FORMAT_LOST)
>       |                           ^~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__adjust_values':
> evsel.c:371:32: error: invalid use of undefined type 'struct perf_evsel'
>   371 |         u64 read_format = evsel->attr.read_format;
>       |                                ^~
> evsel.c:376:27: error: 'PERF_FORMAT_TOTAL_TIME_ENABLED' undeclared (first use in this function)
>   376 |         if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
>       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   CC      /tmp/build/perf/libsubcmd/subcmd-config.o
> evsel.c:379:27: error: 'PERF_FORMAT_TOTAL_TIME_RUNNING' undeclared (first use in this function)
>   379 |         if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
>       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   CC      /tmp/build/perf/libbpf/staticobjs/libbpf.o
> evsel.c:382:27: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
>   382 |         if (read_format & PERF_FORMAT_ID)
>       |                           ^~~~~~~~~~~~~~
> evsel.c:385:27: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
>   385 |         if (read_format & PERF_FORMAT_LOST)
>       |                           ^~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__read':
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:393:19: note: in expansion of macro 'FD'
>   393 |         int *fd = FD(evsel, cpu_map_idx, thread);
>       |                   ^~
> evsel.c:394:32: error: invalid use of undefined type 'struct perf_evsel'
>   394 |         u64 read_format = evsel->attr.read_format;
>       |                                ^~
> evsel.c:402:27: error: 'PERF_FORMAT_GROUP' undeclared (first use in this function)
>   402 |         if (read_format & PERF_FORMAT_GROUP)
>       |                           ^~~~~~~~~~~~~~~~~
> evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                ^~
> evsel.c:405:13: note: in expansion of macro 'MMAP'
>   405 |         if (MMAP(evsel, cpu_map_idx, thread) &&
>       |             ^~~~
> evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                                                                    ^~
> evsel.c:405:13: note: in expansion of macro 'MMAP'
>   405 |         if (MMAP(evsel, cpu_map_idx, thread) &&
>       |             ^~~~
> evsel.c:406:30: error: 'PERF_FORMAT_ID' undeclared (first use in this function)
>   406 |             !(read_format & (PERF_FORMAT_ID | PERF_FORMAT_LOST)) &&
>       |                              ^~~~~~~~~~~~~~
> evsel.c:406:47: error: 'PERF_FORMAT_LOST' undeclared (first use in this function)
>   406 |             !(read_format & (PERF_FORMAT_ID | PERF_FORMAT_LOST)) &&
>       |                                               ^~~~~~~~~~~~~~~~
> evsel.c:51:16: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                ^~
> evsel.c:407:35: note: in expansion of macro 'MMAP'
>   407 |             !perf_mmap__read_self(MMAP(evsel, cpu_map_idx, thread), count))
>       |                                   ^~~~
> evsel.c:51:68: error: invalid use of undefined type 'struct perf_evsel'
>    51 |         (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
>       |                                                                    ^~
> evsel.c:407:35: note: in expansion of macro 'MMAP'
>   407 |             !perf_mmap__read_self(MMAP(evsel, cpu_map_idx, thread), count))
>       |                                   ^~~~
> evsel.c: In function 'perf_evsel__ioctl':
> evsel.c:49:38: error: invalid use of undefined type 'struct perf_evsel'
>    49 |         ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
>       |                                      ^~
> evsel.c:420:19: note: in expansion of macro 'FD'
>   420 |         int *fd = FD(evsel, cpu_map_idx, thread);
>       |                   ^~
> evsel.c: In function 'perf_evsel__run_ioctl':
> evsel.c:434:55: error: invalid use of undefined type 'struct perf_evsel'
>   434 |         for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
>       |                                                       ^~
>   INSTALL /tmp/build/perf/libperf/include/internal/xyarray.h
> evsel.c: In function 'perf_evsel__enable_cpu':
> evsel.c:446:45: error: 'PERF_EVENT_IOC_ENABLE' undeclared (first use in this function)
>   446 |         return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu_map_idx);
>       |                                             ^~~~~~~~~~~~~~~~~~~~~
> In file included from evsel.c:6:
> evsel.c: In function 'perf_evsel__enable_thread':
> evsel.c:455:51: error: invalid use of undefined type 'struct perf_evsel'
>   455 |         perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
>       |                                                   ^~
> /tmp/build/perf/libperf/include/perf/cpumap.h:89:51: note: in definition of macro 'perf_cpu_map__for_each_cpu'
>    89 |         for ((idx) = 0, (cpu) = perf_cpu_map__cpu(cpus, idx);   \
>       |                                                   ^~~~
> evsel.c:455:51: error: invalid use of undefined type 'struct perf_evsel'
>   455 |         perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
>       |                                                   ^~
> /tmp/build/perf/libperf/include/perf/cpumap.h:90:39: note: in definition of macro 'perf_cpu_map__for_each_cpu'
>    90 |              (idx) < perf_cpu_map__nr(cpus);                    \
>       |                                       ^~~~
> evsel.c:455:51: error: invalid use of undefined type 'struct perf_evsel'
>   455 |         perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
>       |                                                   ^~
> /tmp/build/perf/libperf/include/perf/cpumap.h:91:49: note: in definition of macro 'perf_cpu_map__for_each_cpu'
>    91 |              (idx)++, (cpu) = perf_cpu_map__cpu(cpus, idx))
>       |                                                 ^~~~
> evsel.c:456:48: error: 'PERF_EVENT_IOC_ENABLE' undeclared (first use in this function)
>   456 |                 err = perf_evsel__ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, idx, thread);
>       |                                                ^~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__enable':
> evsel.c:469:45: error: invalid use of undefined type 'struct perf_evsel'
>   469 |         for (i = 0; i < xyarray__max_x(evsel->fd) && !err; i++)
>       |                                             ^~
> evsel.c:470:52: error: 'PERF_EVENT_IOC_ENABLE' undeclared (first use in this function)
>   470 |                 err = perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, i);
>       |                                                    ^~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__disable_cpu':
> evsel.c:476:45: error: 'PERF_EVENT_IOC_DISABLE' undeclared (first use in this function)
>   476 |         return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, cpu_map_idx);
>       |                                             ^~~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__disable':
> evsel.c:484:45: error: invalid use of undefined type 'struct perf_evsel'
>   484 |         for (i = 0; i < xyarray__max_x(evsel->fd) && !err; i++)
>       |                                             ^~
> evsel.c:485:52: error: 'PERF_EVENT_IOC_DISABLE' undeclared (first use in this function)
>   485 |                 err = perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, i);
>       |                                                    ^~~~~~~~~~~~~~~~~~~~~~
> evsel.c: At top level:
> evsel.c:489:5: error: no previous prototype for 'perf_evsel__apply_filter' [-Werror=missing-prototypes]
>   489 | int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter)
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__apply_filter':
> evsel.c:493:47: error: invalid use of undefined type 'struct perf_evsel'
>   493 |         for (i = 0; i < perf_cpu_map__nr(evsel->cpus) && !err; i++)
>       |                                               ^~
> evsel.c:495:38: error: 'PERF_EVENT_IOC_SET_FILTER' undeclared (first use in this function)
>   495 |                                      PERF_EVENT_IOC_SET_FILTER,
>       |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__cpus':
> evsel.c:502:21: error: invalid use of undefined type 'struct perf_evsel'
>   502 |         return evsel->cpus;
>       |                     ^~
> evsel.c: In function 'perf_evsel__threads':
> evsel.c:507:21: error: invalid use of undefined type 'struct perf_evsel'
>   507 |         return evsel->threads;
>       |                     ^~
> evsel.c: In function 'perf_evsel__attr':
> evsel.c:512:22: error: invalid use of undefined type 'struct perf_evsel'
>   512 |         return &evsel->attr;
>       |                      ^~
> evsel.c: At top level:
> evsel.c:515:5: error: no previous prototype for 'perf_evsel__alloc_id' [-Werror=missing-prototypes]
>   515 | int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
>       |     ^~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__alloc_id':
> evsel.c:520:14: error: invalid use of undefined type 'struct perf_evsel'
>   520 |         evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
>       |              ^~
> evsel.c:520:65: error: invalid application of 'sizeof' to incomplete type 'struct perf_sample_id'
>   520 |         evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
>       |                                                                 ^~~~~~
> evsel.c:521:18: error: invalid use of undefined type 'struct perf_evsel'
>   521 |         if (evsel->sample_id == NULL)
>       |                  ^~
> evsel.c:524:14: error: invalid use of undefined type 'struct perf_evsel'
>   524 |         evsel->id = zalloc(ncpus * nthreads * sizeof(u64));
>       |              ^~
> evsel.c:525:18: error: invalid use of undefined type 'struct perf_evsel'
>   525 |         if (evsel->id == NULL) {
>       |                  ^~
> evsel.c:526:38: error: invalid use of undefined type 'struct perf_evsel'
>   526 |                 xyarray__delete(evsel->sample_id);
>       |                                      ^~
> evsel.c:527:22: error: invalid use of undefined type 'struct perf_evsel'
>   527 |                 evsel->sample_id = NULL;
>       |                      ^~
> evsel.c: At top level:
> evsel.c:534:6: error: no previous prototype for 'perf_evsel__free_id' [-Werror=missing-prototypes]
>   534 | void perf_evsel__free_id(struct perf_evsel *evsel)
>       |      ^~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__free_id':
> evsel.c:538:30: error: invalid use of undefined type 'struct perf_evsel'
>   538 |         xyarray__delete(evsel->sample_id);
>       |                              ^~
> evsel.c:539:14: error: invalid use of undefined type 'struct perf_evsel'
>   539 |         evsel->sample_id = NULL;
>       |              ^~
> In file included from evsel.c:11:
> evsel.c:540:21: error: invalid use of undefined type 'struct perf_evsel'
>   540 |         zfree(&evsel->id);
>       |                     ^~
> /git/perf-6.15.0-rc2/tools/include/linux/zalloc.h:10:38: note: in definition of macro 'zfree'
>    10 | #define zfree(ptr) __zfree((void **)(ptr))
>       |                                      ^~~
> evsel.c:541:14: error: invalid use of undefined type 'struct perf_evsel'
>   541 |         evsel->ids = 0;
>       |              ^~
> evsel.c:543:9: error: implicit declaration of function 'perf_evsel_for_each_per_thread_period_safe' [-Werror=implicit-function-declaration]
>   543 |         perf_evsel_for_each_per_thread_period_safe(evsel, n, pos) {
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c:543:9: error: nested extern declaration of 'perf_evsel_for_each_per_thread_period_safe' [-Werror=nested-externs]
> evsel.c:543:66: error: expected ';' before '{' token
>   543 |         perf_evsel_for_each_per_thread_period_safe(evsel, n, pos) {
>       |                                                                  ^~
>       |                                                                  ;
> evsel.c: At top level:
> evsel.c:549:6: error: no previous prototype for 'perf_evsel__attr_has_per_thread_sample_period' [-Werror=missing-prototypes]
>   549 | bool perf_evsel__attr_has_per_thread_sample_period(struct perf_evsel *evsel)
>       |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_evsel__attr_has_per_thread_sample_period':
> evsel.c:551:22: error: invalid use of undefined type 'struct perf_evsel'
>   551 |         return (evsel->attr.sample_type & PERF_SAMPLE_READ) &&
>       |                      ^~
> evsel.c:551:43: error: 'PERF_SAMPLE_READ' undeclared (first use in this function)
>   551 |         return (evsel->attr.sample_type & PERF_SAMPLE_READ) &&
>       |                                           ^~~~~~~~~~~~~~~~
> evsel.c:552:23: error: invalid use of undefined type 'struct perf_evsel'
>   552 |                 (evsel->attr.sample_type & PERF_SAMPLE_TID) &&
>       |                       ^~
> evsel.c:552:44: error: 'PERF_SAMPLE_TID' undeclared (first use in this function); did you mean 'PERF_SAMPLE_MAX_SIZE'?
>   552 |                 (evsel->attr.sample_type & PERF_SAMPLE_TID) &&
>       |                                            ^~~~~~~~~~~~~~~
>       |                                            PERF_SAMPLE_MAX_SIZE
> evsel.c:553:22: error: invalid use of undefined type 'struct perf_evsel'
>   553 |                 evsel->attr.inherit;
>       |                      ^~
> evsel.c: At top level:
> evsel.c:556:48: error: 'struct perf_sample_id' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>   556 | u64 *perf_sample_id__get_period_storage(struct perf_sample_id *sid, u32 tid, bool per_thread)
>       |                                                ^~~~~~~~~~~~~~
> evsel.c:556:6: error: no previous prototype for 'perf_sample_id__get_period_storage' [-Werror=missing-prototypes]
>   556 | u64 *perf_sample_id__get_period_storage(struct perf_sample_id *sid, u32 tid, bool per_thread)
>       |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c: In function 'perf_sample_id__get_period_storage':
> evsel.c:563:28: error: invalid use of undefined type 'struct perf_sample_id'
>   563 |                 return &sid->period;
>       |                            ^~
> evsel.c:565:29: error: 'PERF_SAMPLE_ID__HLIST_BITS' undeclared (first use in this function)
>   565 |         hash = hash_32(tid, PERF_SAMPLE_ID__HLIST_BITS);
>       |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~
> evsel.c:566:20: error: invalid use of undefined type 'struct perf_sample_id'
>   566 |         head = &sid->periods[hash];
>       |                    ^~
> In file included from /git/perf-6.15.0-rc2/tools/include/linux/kernel.h:14,
>                  from /git/perf-6.15.0-rc2/tools/include/linux/list.h:7,
>                  from evsel.c:9:
> /git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:33: error: invalid use of undefined type 'struct perf_sample_id_period'
>    14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
>       |                                 ^~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
>   705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
>       |                                        ^~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
>   716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
>       |                      ^~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:726:20: note: in expansion of macro 'hlist_entry_safe'
>   726 |         for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
>       |                    ^~~~~~~~~~~~~~~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:54: error: initialization of 'const int *' from incompatible pointer type 'struct hlist_node *' [-Werror=incompatible-pointer-types]
>    14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
>       |                                                      ^
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
>   705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
>       |                                        ^~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
>   716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
>       |                      ^~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:726:20: note: in expansion of macro 'hlist_entry_safe'
>   726 |         for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
>       |                    ^~~~~~~~~~~~~~~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/sys/mman.h:25,
>                  from evsel.c:20:
> /git/perf-6.15.0-rc2/tools/include/linux/container_of.h:15:35: error: invalid use of undefined type 'struct perf_sample_id_period'
>    15 |         (type *)((char *)__mptr - offsetof(type, member)); })
>       |                                   ^~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
>   705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
>       |                                        ^~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
>   716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
>       |                      ^~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:726:20: note: in expansion of macro 'hlist_entry_safe'
>   726 |         for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
>       |                    ^~~~~~~~~~~~~~~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:728:42: error: invalid use of undefined type 'struct perf_sample_id_period'
>   728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
>       |                                          ^~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:715:19: note: in definition of macro 'hlist_entry_safe'
>   715 |         ({ typeof(ptr) ____ptr = (ptr); \
>       |                   ^~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:728:42: error: invalid use of undefined type 'struct perf_sample_id_period'
>   728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
>       |                                          ^~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:715:35: note: in definition of macro 'hlist_entry_safe'
>   715 |         ({ typeof(ptr) ____ptr = (ptr); \
>       |                                   ^~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:33: error: invalid use of undefined type 'struct perf_sample_id_period'
>    14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
>       |                                 ^~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
>   705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
>       |                                        ^~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
>   716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
>       |                      ^~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:728:20: note: in expansion of macro 'hlist_entry_safe'
>   728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
>       |                    ^~~~~~~~~~~~~~~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/container_of.h:14:54: error: initialization of 'const int *' from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
>    14 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
>       |                                                      ^
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
>   705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
>       |                                        ^~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
>   716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
>       |                      ^~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:728:20: note: in expansion of macro 'hlist_entry_safe'
>   728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
>       |                    ^~~~~~~~~~~~~~~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/container_of.h:15:35: error: invalid use of undefined type 'struct perf_sample_id_period'
>    15 |         (type *)((char *)__mptr - offsetof(type, member)); })
>       |                                   ^~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:705:40: note: in expansion of macro 'container_of'
>   705 | #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
>       |                                        ^~~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:716:22: note: in expansion of macro 'hlist_entry'
>   716 |            ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
>       |                      ^~~~~~~~~~~
> /git/perf-6.15.0-rc2/tools/include/linux/list.h:728:20: note: in expansion of macro 'hlist_entry_safe'
>   728 |              pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
>       |                    ^~~~~~~~~~~~~~~~
> evsel.c:568:9: note: in expansion of macro 'hlist_for_each_entry'
>   568 |         hlist_for_each_entry(res, head, hnode)
>       |         ^~~~~~~~~~~~~~~~~~~~
> evsel.c:569:24: error: invalid use of undefined type 'struct perf_sample_id_period'
>   569 |                 if (res->tid == tid)
>       |                        ^~
> evsel.c:570:36: error: invalid use of undefined type 'struct perf_sample_id_period'
>   570 |                         return &res->period;
>       |                                    ^~
> evsel.c:572:16: error: invalid use of undefined type 'struct perf_sample_id'
>   572 |         if (sid->evsel == NULL)
>       |                ^~
> evsel.c:575:29: error: invalid application of 'sizeof' to incomplete type 'struct perf_sample_id_period'
>   575 |         res = zalloc(sizeof(struct perf_sample_id_period));
>       |                             ^~~~~~
> evsel.c:579:28: error: invalid use of undefined type 'struct perf_sample_id_period'
>   579 |         INIT_LIST_HEAD(&res->node);
>       |                            ^~
> evsel.c:580:12: error: invalid use of undefined type 'struct perf_sample_id_period'
>   580 |         res->tid = tid;
>       |            ^~
> evsel.c:582:27: error: invalid use of undefined type 'struct perf_sample_id_period'
>   582 |         list_add_tail(&res->node, &sid->evsel->per_stream_periods);
>       |                           ^~
> evsel.c:582:39: error: invalid use of undefined type 'struct perf_sample_id'
>   582 |         list_add_tail(&res->node, &sid->evsel->per_stream_periods);
>       |                                       ^~
> evsel.c:583:28: error: invalid use of undefined type 'struct perf_sample_id_period'
>   583 |         hlist_add_head(&res->hnode, &sid->periods[hash]);
>       |                            ^~
> evsel.c:583:41: error: invalid use of undefined type 'struct perf_sample_id'
>   583 |         hlist_add_head(&res->hnode, &sid->periods[hash]);
>       |                                         ^~
> evsel.c:585:20: error: invalid use of undefined type 'struct perf_sample_id_period'
>   585 |         return &res->period;
>       |                    ^~
> evsel.c:560:13: error: variable 'hash' set but not used [-Werror=unused-but-set-variable]
>   560 |         int hash;
>       |             ^~~~
> evsel.c: In function 'perf_evsel__alloc_fd':
> evsel.c:72:1: error: control reaches end of non-void function [-Werror=return-type]
>    72 | }
>       | ^
> evsel.c: In function 'perf_evsel__mmap_base':
> evsel.c:292:1: error: control reaches end of non-void function [-Werror=return-type]
>   292 | }
>       | ^
> evsel.c: In function 'perf_evsel__enable_cpu':
> evsel.c:447:1: error: control reaches end of non-void function [-Werror=return-type]
>   447 | }
>       | ^
> evsel.c: In function 'perf_evsel__disable_cpu':
> evsel.c:477:1: error: control reaches end of non-void function [-Werror=return-type]
>   477 | }
>       | ^
> evsel.c: In function 'perf_evsel__cpus':
> evsel.c:503:1: error: control reaches end of non-void function [-Werror=return-type]
>   503 | }
>       | ^
> evsel.c: In function 'perf_evsel__threads':
> evsel.c:508:1: error: control reaches end of non-void function [-Werror=return-type]
>   508 | }
>       | ^
> evsel.c: In function 'perf_evsel__attr':
> evsel.c:513:1: error: control reaches end of non-void function [-Werror=return-type]
>   513 | }
>       | ^
> evsel.c: In function 'perf_evsel__attr_has_per_thread_sample_period':
> evsel.c:554:1: error: control reaches end of non-void function [-Werror=return-type]
>   554 | }
>       | ^
> evsel.c: In function 'perf_sample_id__get_period_storage':
> evsel.c:586:1: error: control reaches end of non-void function [-Werror=return-type]
>   586 | }
>       | ^
> cc1: all warnings being treated as errors
> make[4]: *** [/git/perf-6.15.0-rc2/tools/build/Makefile.build:85: /tmp/build/perf/libperf/evsel.o] Error 1
> make[4]: *** Waiting for unfinished jobs....
>   LD      /tmp/build/perf/jvmti/jvmti-in.o
>   CC      /tmp/build/perf/libbpf/staticobjs/bpf.o
>   INSTALL libperf_headers
>   CC      /tmp/build/perf/libbpf/staticobjs/nlattr.o
>   LD      /tmp/build/perf/libapi/libapi-in.o
>   AR      /tmp/build/perf/libapi/libapi.a
>   CC      /tmp/build/perf/libbpf/staticobjs/libbpf_errno.o
>   CC      /tmp/build/perf/libbpf/staticobjs/btf.o
>   CC      /tmp/build/perf/libbpf/staticobjs/str_error.o
>   CC      /tmp/build/perf/libbpf/staticobjs/netlink.o
>   CC      /tmp/build/perf/libbpf/staticobjs/bpf_prog_linfo.o
>   CC      /tmp/build/perf/libbpf/staticobjs/libbpf_probes.o
>   CC      /tmp/build/perf/libbpf/staticobjs/btf_dump.o
>   CC      /tmp/build/perf/libbpf/staticobjs/ringbuf.o
>   CC      /tmp/build/perf/libbpf/staticobjs/hashmap.o
>   CC      /tmp/build/perf/libbpf/staticobjs/strset.o
>   CC      /tmp/build/perf/libbpf/staticobjs/linker.o
>   CC      /tmp/build/perf/libbpf/staticobjs/gen_loader.o
>   CC      /tmp/build/perf/libbpf/staticobjs/usdt.o
>   CC      /tmp/build/perf/libbpf/staticobjs/relo_core.o
>   CC      /tmp/build/perf/libbpf/staticobjs/zip.o
>   CC      /tmp/build/perf/libbpf/staticobjs/elf.o
>   CC      /tmp/build/perf/libbpf/staticobjs/btf_iter.o
>   CC      /tmp/build/perf/libbpf/staticobjs/features.o
>   CC      /tmp/build/perf/libbpf/staticobjs/btf_relocate.o
> make[3]: *** [Makefile:103: /tmp/build/perf/libperf/libperf-in.o] Error 2
> make[2]: *** [Makefile.perf:976: /tmp/build/perf/libperf/libperf.a] Error 2
> make[2]: *** Waiting for unfinished jobs....
>   LD      /tmp/build/perf/libsubcmd/libsubcmd-in.o
>   AR      /tmp/build/perf/libsubcmd/libsubcmd.a
>   LD      /tmp/build/perf/libbpf/staticobjs/libbpf-in.o
>   LINK    /tmp/build/perf/libbpf/libbpf.a
>
> Auto-detecting system features:
> ...                         clang-bpf-co-re: [ on  ]
> ...                                    llvm: [ on  ]
> ...                                  libcap: [ on  ]
> ...                                  libbfd: [ on  ]
>
>   MKDIR   /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf
>   MKDIR   /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/
>   MKDIR   /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/hashmap.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/relo_core.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_internal.h
>   GEN     /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/bpf_helper_defs.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/btf.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_legacy.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_common.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_helpers.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_tracing.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_core_read.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_endian.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/libbpf_version.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/skel_internal.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/usdt.bpf.h
>   INSTALL /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/include/bpf/bpf_helper_defs.h
>   INSTALL libbpf_headers
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/bpf.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/nlattr.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf_errno.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/str_error.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/netlink.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/bpf_prog_linfo.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf_probes.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/hashmap.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf_dump.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/ringbuf.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/strset.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/linker.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/gen_loader.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/zip.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/usdt.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/relo_core.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf_relocate.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/elf.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/features.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/btf_iter.o
>   LD      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/staticobjs/libbpf-in.o
>   LINK    /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/libbpf/libbpf.a
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/main.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/common.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/json_writer.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/gen.o
>   CC      /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/btf.o
>   LINK    /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/bpftool
> make[1]: *** [Makefile.perf:287: sub-make] Error 2
> make: *** [Makefile:76: all] Error 2
> make: Leaving directory '/git/perf-6.15.0-rc2/tools/perf'
> + exit 1
> toolsbuilder@number:~/git/linux-tools-container-builds$
>
>