Re: Personal aarch64 FreeBSD OS build gets SIGSEGV during: ./pmu-events/jevents arm64 /usr/main-src/lib/libpmc/pmu-events/arch libpmc_event [lists the jevents file mismatches]

In reply to: Mark Millard : "Re: Personal aarch64 FreeBSD OS build gets SIGSEGV during: ./pmu-events/jevents arm64 /usr/main-src/lib/libpmc/pmu-events/arch libpmc_event [lists the jevents file mismatches]"
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From: Mark Millard <marklmi_at_yahoo.com>
Date: Wed, 23 Sep 2026 04:42:45 UTC
On 9/22/26 11:18, Mark Millard wrote:
> On 9/22/26 09:00, Mark Millard wrote:
>> On 9/22/26 08:25, Mark Millard wrote:
>>> On 9/22/26 08:21, Mark Millard wrote:
>>>> On 9/22/26 06:43, Alan Somers wrote:
>>>>> On Sun, Sep 20, 2026 at 10:46 PM Mark Millard <marklmi@yahoo.com> wrote:
>>>>>>
>>>>>> On 9/20/26 18:54, Mark Millard wrote:
>>>>>>> On 9/20/26 11:13, Mark Millard wrote:
>>>>>>>> [I have CC'd a could of authors with recent libpmc commits. I did not
>>>>>>>> list any recent libc authors.]
>>>>>>>>
>>>>>>>> . . .
>>>>>>>>
>>>>>>>
>>>>>>> I found the type of problem --but it is not a obvious extension of
>>>>>>> the prior material: META_MODE recorded something that indicates the
>>>>>>> actual problem . . .
>>>>>>>
>>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta:R
>>>>>>> 12651 /usr/include/fts.h
>>>>>>>
>>>>>>> The build is using the /usr/include/fts.h from the live old system
>>>>>>> while trying to build the new system.
>>>>>>>
>>>>>>> Given the FTSENT change of layout from old to new, that does not
>>>>>>> work. Also, this is not something that clearing out /usr/obj/ . . .
>>>>>>> and rebuilding fixes.
>>>>>>>
>>>>>>> The build of lib/libpmc/pmu-events/jevents.* should get the fts.h
>>>>>>> file from the source tree being built, in my case I was working in
>>>>>>> /usr/main-src/ so:
>>>>>>>
>>>>>>> # find -s /usr/main-src/ -name fts.h -print
>>>>>>> /usr/main-src/include/fts.h
>>>>>>>
>>>>>>> lists a path to the file that should have been used for the build.
>>>>>>>
>>>>>>> I expect that this would be a libpmc development issue, not a fts
>>>>>>> development issue for who solves it.
>>>>>>>
>>>>>>>
>>>>>>> Also: this turns out to not be an arm specific problem.
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> The problematic include handling for building system updates extends far
>>>>>> beyond the specific example in jevents.pieo.meta : All but 8 of the many
>>>>>> include file usages were strictly tied to the old live system instead of
>>>>>> to the new system's source tree (to some degree):
>>>>>> (The ones that mention main-src are those that involve the source tree
>>>>>> that I was doing the build for.)
>>>>>>
>>>>>> # grep -e /include/ -e '\.h$'
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
>>>>>> R 12651 /usr/include/sys/param.h
>>>>>> R 12651 /usr/include/sys/_null.h
>>>>>> R 12651 /usr/include/sys/_param.h
>>>>>> R 12651 /usr/include/sys/types.h
>>>>>> R 12651
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/sys/cdefs.h
>>>>>> R 12651
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/sys/_decls.h
>>>>>> R 12651
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/sys/_visible.h
>>>>>> R 12651 /usr/include/machine/endian.h
>>>>>> R 12651 /usr/include/sys/_types.h
>>>>>> R 12651 /usr/include/machine/_types.h
>>>>>> R 12651 /usr/include/sys/_endian.h
>>>>>> R 12651 /usr/include/sys/_offsetof.h
>>>>>> R 12651 /usr/include/sys/_pthreadtypes.h
>>>>>> R 12651 /usr/include/sys/_stdint.h
>>>>>> R 12651 /usr/include/sys/bitcount.h
>>>>>> R 12651 /usr/include/sys/select.h
>>>>>> R 12651 /usr/include/sys/_sigset.h
>>>>>> R 12651 /usr/include/sys/_timeval.h
>>>>>> R 12651 /usr/include/sys/timespec.h
>>>>>> R 12651 /usr/include/sys/_timespec.h
>>>>>> R 12651 /usr/include/sys/syslimits.h
>>>>>> R 12651 /usr/include/sys/signal.h
>>>>>> R 12651 /usr/include/sys/_sigaltstack.h
>>>>>> R 12651 /usr/include/sys/_sigval.h
>>>>>> R 12651 /usr/include/machine/_limits.h
>>>>>> R 12651 /usr/include/machine/signal.h
>>>>>> R 12651 /usr/include/machine/param.h
>>>>>> R 12651 /usr/include/sys/_align.h
>>>>>> R 12651 /usr/include/sys/limits.h
>>>>>> R 12651 /usr/include/sys/_maxphys.h
>>>>>> R 12651 /usr/include/sys/resource.h
>>>>>> R 12651 /usr/include/sys/stat.h
>>>>>> R 12651 /usr/include/sys/time.h
>>>>>> R 12651 /usr/include/sys/_clock_id.h
>>>>>> R 12651 /usr/include/time.h
>>>>>> R 12651 /usr/include/xlocale/_time.h
>>>>>> R 12651 /usr/include/ctype.h
>>>>>> R 12651 /usr/include/_ctype.h
>>>>>> R 12651 /usr/include/runetype.h
>>>>>> R 12651 /usr/include/xlocale/_ctype.h
>>>>>> R 12651 /usr/include/dirent.h
>>>>>> R 12651 /usr/include/sys/dirent.h
>>>>>> R 12651 /usr/include/errno.h
>>>>>> R 12651 /usr/include/libgen.h
>>>>>> R 12651 /usr/include/limits.h
>>>>>> R 12651 /usr/include/stdarg.h
>>>>>> R 12651 /usr/include/sys/_stdarg.h
>>>>>> R 12651
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/stddef.h
>>>>>> R 12651 /usr/include/stddef.h
>>>>>> R 12651 /usr/include/stdio.h
>>>>>> R 12651 /usr/include/stdlib.h
>>>>>> R 12651 /usr/include/string.h
>>>>>> R 12651 /usr/include/strings.h
>>>>>> R 12651 /usr/include/xlocale/_strings.h
>>>>>> R 12651 /usr/include/xlocale/_string.h
>>>>>> R 12651 /usr/include/unistd.h
>>>>>> R 12651 /usr/include/sys/unistd.h
>>>>>> R 12651 /usr/include/ftw.h
>>>>>> R 12651 /usr/main-src/lib/libpmc/pmu-events/list.h
>>>>>> R 12651 /usr/main-src/lib/libpmc/pmu-events/jsmn.h
>>>>>> R 12651 /usr/main-src/lib/libpmc/pmu-events/json.h
>>>>>> R 12651 /usr/include/stdbool.h
>>>>>> R 12651 /usr/main-src/lib/libpmc/pmu-events/pmu-events.h
>>>>>> R 12651 /usr/include/fts.h
>>>>>>
>>>>>>
>>>>>> Some of those may be lower risk of incompatible changes than others but
>>>>>> the general trend is not good for doing system builds when layout
>>>>>> changes or other incompatibilities are introduced.
>>>>>>
>>>>>> Of course, there are some things that are built for operation on the
>>>>>> older system instead of the newer one. So the classification is case by
>>>>>> case across the various *.meta files.
>>>>>>
>>>>>>
>>>>>> Taking a quick stab at finding other examples (incomplete because of the
>>>>>> failed build):
>>>>>>
>>>>>> # find -s /usr/obj/BUILDs/main-CA76-nodbg-clang/ -name \*.meta -exec
>>>>>> grep -l -e ' /usr/include/' {} \; | grep -v /tmp/obj-tools/
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/bin/csh/gethost.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/bin/sh/mknodes.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/bin/sh/mksyntax.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/host-osreldate.h.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libmagic/mkmagic.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jsmn.pieo.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/json.pieo.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/ncurses/tinfo/make_hash.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/ncurses/tinfo/make_keys.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/rescue/rescue/usr/main-src/bin/csh/gethost.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/rescue/rescue/usr/main-src/bin/sh/mknodes.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/rescue/rescue/usr/main-src/bin/sh/mksyntax.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/armscii8-2haik8.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/iso-8859-1_to_cp437.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/iso-8859-4_for_vga9.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/iso-8859-7_to_cp437.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/koi8-r2cp866.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/koi8-u2cp866u.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/share/syscons/scrnmaps/us-ascii_to_cp437.mk.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/usr.bin/awk/maketab.meta
>>>>>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/usr.bin/vi/catalog/dump.meta
>>>>>>
>>>>>>
>>>>>> --
>>>>>> ===
>>>>>> Mark Millard
>>>>>> marklmi at yahoo.com
>>>>>
>>>>> Interesting find.  And I can reproduce it, partially.  If I build
>>>>> 16.0-CURRENT from a 15.1 host, and look at the generated symbols:
>>>>>
>>>>>> objdump -T /usr/obj/.../amd64.amd64/lib/libpmc/pmu-events/jevents.full | grep fts_
>>>>> 0000000000000000      DF *UND*  0000000000000000 (FBSD_1.5)   fts_open
>>>>> 0000000000000000      DF *UND*  0000000000000000 (FBSD_1.5)   fts_read
>>>>> 0000000000000000      DF *UND*  0000000000000000 (FBSD_1.5)   fts_close
>>>>>
>>>>> I see the FBSD_1.5 version of those symbols.  It should be FBSD_1.9
>>>>> instead.  Indeed, if I build from a 16.0 host I do see the FBSD_1.9
>>>>> symbols.  So the build is definitely wrong.  But that doesn't quite
>>>>> explain why you would get a segfault.  Linking to the FBSD_1.5 symbols
>>>>> while using the old header files should work fine.  So I wonder if the
>>>>> build is somehow including a mixture of old header files and new ones.
>>>>> That would explain a segfault.
>>>>>
>>>>>
>>>>
>>>> Yes, it is getting a mnixture: one place gets /usr/inbclude/fts.h .
>>>>
>>>> Using find for .meta files in the build directorty tree and grep for
>>>> fts.h in such files I find:
>>>>
>>>> ) The odd:
>>>>
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta:R
>>>> 77658 /usr/include/fts.h
>>>>
>>>> ) Mostly reference to: /usr/main-src/include/fts.h
>>>>   (I'll not show the list of places.)

Since jevents is a build-tool:

It appears I may have gotten the classification backwards: it may be all
the /usr/main-src/include/fts.h usage that is odd and the
/usr/include/fts.h may be what jevents and the code it puts to use
should be using everywhere.

That would make more sense for spanning FreeBSD libc, OpenBSD libc,
NetBSD libc, glibc, and Apple libc .

This would also suggest that various other /usr/include/ path prefix
usage that I reported is actually reasonable for a built-tool .

I will note that if jevents is not rebuilt once the FreeBSD OS is
installed and put to use, jevents would end up mismatched with the new
OS version.

>>>>
>>>> For reference:
>>>>
>>>> # diff -u /usr/include/fts.h /usr/main-src/include/fts.h
>>>> --- /usr/include/fts.h	2025-05-11 07:29:42.791259000 -0700
>>>> +++ /usr/main-src/include/fts.h	2026-09-18 16:13:35.766402000 -0700
>>>> @@ -1,4 +1,4 @@
>>>> -/*-
>>>> +/*
>>>>   * SPDX-License-Identifier: BSD-3-Clause
>>>>   *
>>>>   * Copyright (c) 1989, 1993
>>>> @@ -92,6 +92,8 @@
>>>>  	char *fts_path;			/* root path */
>>>>  	int fts_errno;			/* errno for this node */
>>>>  	int fts_symfd;			/* fd for symlink */
>>>> +	int fts_dirfd;                  /* fd for this directory, if a
>>>> directory */
>>>> +	int __fts_reserved[3];          /* reserved for future use */
>>>>  	__size_t fts_pathlen;		/* strlen(fts_path) */
>>>>  	__size_t fts_namelen;		/* strlen(fts_name) */
>>>>
>>>> @@ -146,6 +148,8 @@
>>>>  #define	 fts_get_stream(ftsent)	((ftsent)->fts_fts)
>>>>  FTS	*fts_open(char * const *, int,
>>>>  	    int (*)(const FTSENT * const *, const FTSENT * const *));
>>>> +FTS	*fts_openat(int, char * const *, int,
>>>> +	    int (*)(const FTSENT * const *, const FTSENT * const *));
>>>>  #ifdef __BLOCKS__
>>>>  FTS	*fts_open_b(char * const *, int,
>>>>  	    int (^)(const FTSENT * const *, const FTSENT * const *));
>>>>
>>>> ) A rereference:
>>>>
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libsysdecode/ioctl.c.tmp.meta:R
>>>> 64787 ./fts.h
>>>>
>>>> There are a lot of ./. . ./*.h paths in this meta file. If I gatehr
>>>> right, these are relative to:
>>>>
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/
>>>>
>>>> For reference:
>>>>
>>>> # diff -u
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/main-src/include/fts.h
>>>> #

That might be right for the below:

>>>>
>>>>
>>>> ) There are references:
>>>>
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/asan/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 60898
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/asan_dynamic/sanitizer_common_sanitizer_platform_limits_freebsd.pico.meta:R
>>>> 61150
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/cfi/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 60129
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/cfi_diag/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 60241
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/msan/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 61596
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/stats/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 61726
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/tsan/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 61835
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/ubsan_standalone/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 62121
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libclang_rt/xray/sanitizer_common_sanitizer_platform_limits_freebsd.o.meta:R
>>>> 62367
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>>
>>>> For reference:
>>>>
>>>> # diff -u
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/tmp/usr/include/fts.h
>>>> /usr/main-src/include/fts.h
>>>> #

Sorry for the repeating the above.

>>>>
>>>> ) I ignore here references in . . ./include/_INCSINS.meta
>>>>
>>>>
>>>> So, just the one example:
>>>
>>> Sorry, poor wording above. Missing: of fts.h
>>>
>>>>
>>>> /usr/obj/BUILDs/main-CA76-dbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta:R
>>>> 77658 /usr/include/fts.h
>>>>
>>>>
>>>
>>> jevents.pieo.meta shows lots of other *.h files incorrectly from the
>>> /usr/include/ area as well.
>>>
>>
>> My hypothesis is that the:
>>
>> -I/usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include
>>
>> in the below CMD line from the .meta file is ineffective because what it
>> references has not been populated yet and so /usr/include/ is being used
>> by default.
> 
> 
> jevents is built as a build tool (from the Makefile):
> 
> build-tools: jevents
> 
> 
> So it seems that some of the /usr/include/ prefixed paths in the .meta
> file's listing of files read need to have been populated into:
> 
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include
> 
> But were not --and so end up from the live (older) system's
> /usr/include/ . fts.h is an example with actual chnages that matter.
> 
>>
>> # Meta data file
>> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
>> CMD cc -fpie -DPIC   -O2 -pipe -fno-common -Wno-cast-qual
>> -mcpu=cortex-a76 -fPIE -DNDEBUG  -g -gz=zlib -std=gnu17
>> -Wno-format-zero-length  -Wsystem-headers -Wall -Wno-format-y2k -W
>> -Wno-unused-paramet
>> er -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith
>> -Wno-uninitialized -Wno-pointer-sign -Wdate-time -Wno-empty-body
>> -Wno-string-plus-int -Wno-unused-const-variable -Wno-error=unused-but-set-p
>> arameter -Wno-error=cast-function-type-mismatch
>> -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality
>> -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef
>> -Wno-address-o
>> f-packed-member  -Qunused-arguments
>> -I/usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include
>>  -c /usr/main-src/lib/libpmc/pmu-events/jevents.c -o jevents.pieo
>> . . .
>>
>> Also note that there is only the one -I . The
>> lib/libpmc/pmu-events/Makefile has only:
>>
>> PROG=	jevents
>> SRCS=	jevents.c jsmn.c json.c
>> CFLAGS+= -Wno-cast-qual
>> MAN=
>>
>> build-tools: jevents
>>
>> .include <bsd.prog.mk>
>>
>>
>> The Makefile.depends has only:
>>
>> # Autogenerated - do NOT edit!
>>
>> DIRDEPS = \
>>
>>
>> .include <dirdeps.mk>
>>
>> .if ${DEP_RELDIR} == ${_DEP_RELDIR}
>> # local dependencies - needed for -jN in clean tree
>> .endif
>>
>>
>> Nothing is supplying an appropriate -I usage for the context
> 
> The above about -I usage seems to be wrong.
> 
> The below about sequencing seems to also be wrong:
> 
>> --or
>> something is out of sequence so that the include files needed are not
>> yet in place.
> 
> 
> Instead, lots of header files that are used simply are not populated
> into the likes of:
> 
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include
> 
> so that the new ones end up being unavailable when there are changes in
> the FreeBSD source code.
> 
> For comparison/contrast:
> 
> # ls -aC1
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/
> | grep '\.h$'
> a.out.h
> bitstring.h
> com_err.h
> elf.h
> err.h
> gssapi.h
> kdb.h
> krad.h
> krb5.h
> md4.h
> md5.h
> mpool.h
> ndbm.h
> nl_types.h
> nlist.h
> ripemd.h
> sha.h
> sha224.h
> sha256.h
> sha384.h
> sha512.h
> sha512t.h
> skein.h
> skein_freebsd.h
> skein_iv.h
> skein_port.h
> stddef.h
> stringlist.h
> verto-module.h
> verto.h
> 
> vs.:
> 
> # grep ' /usr/include/[^/]*$'
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
> | sort -u
> R 12651 /usr/include/_ctype.h
> R 12651 /usr/include/ctype.h
> R 12651 /usr/include/dirent.h
> R 12651 /usr/include/errno.h
> R 12651 /usr/include/fts.h
> R 12651 /usr/include/ftw.h
> R 12651 /usr/include/libgen.h
> R 12651 /usr/include/limits.h
> R 12651 /usr/include/runetype.h
> R 12651 /usr/include/stdarg.h
> R 12651 /usr/include/stdbool.h
> R 12651 /usr/include/stddef.h
> R 12651 /usr/include/stdio.h
> R 12651 /usr/include/stdlib.h
> R 12651 /usr/include/string.h
> R 12651 /usr/include/strings.h
> R 12651 /usr/include/time.h
> R 12651 /usr/include/unistd.h
> 
> 
> # ls -aC1
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/machine/
> | grep '\.h$'
> elf.h
> exec.h
> reloc.h
> 
> vs.
> 
> # grep ' /usr/include/machine/'
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
> | sort -u
> R 12651 /usr/include/machine/_limits.h
> R 12651 /usr/include/machine/_types.h
> R 12651 /usr/include/machine/endian.h
> R 12651 /usr/include/machine/param.h
> R 12651 /usr/include/machine/signal.h
> 
> 
> # ls -aC1
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/sys/
> | grep '\.h$'
> _decls.h
> _nv.h
> _visible.h
> bitstring.h
> cdefs.h
> cnv.h
> consio.h
> ctf.h
> dnv.h
> elf.h
> elf32.h
> elf64.h
> elf_common.h
> elf_generic.h
> fnv_hash.h
> font.h
> imgact_aout.h
> kbio.h
> md4.h
> md5.h
> module.h
> nlist_aout.h
> nv.h
> nv_namespace.h
> queue.h
> sbuf.h
> tree.h
> 
> vs.
> 
> # grep ' /usr/include/sys/'
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
> | sort -u
> R 12651 /usr/include/sys/_align.h
> R 12651 /usr/include/sys/_clock_id.h
> R 12651 /usr/include/sys/_endian.h
> R 12651 /usr/include/sys/_maxphys.h
> R 12651 /usr/include/sys/_null.h
> R 12651 /usr/include/sys/_offsetof.h
> R 12651 /usr/include/sys/_param.h
> R 12651 /usr/include/sys/_pthreadtypes.h
> R 12651 /usr/include/sys/_sigaltstack.h
> R 12651 /usr/include/sys/_sigset.h
> R 12651 /usr/include/sys/_sigval.h
> R 12651 /usr/include/sys/_stdarg.h
> R 12651 /usr/include/sys/_stdint.h
> R 12651 /usr/include/sys/_timespec.h
> R 12651 /usr/include/sys/_timeval.h
> R 12651 /usr/include/sys/_types.h
> R 12651 /usr/include/sys/bitcount.h
> R 12651 /usr/include/sys/dirent.h
> R 12651 /usr/include/sys/limits.h
> R 12651 /usr/include/sys/param.h
> R 12651 /usr/include/sys/resource.h
> R 12651 /usr/include/sys/select.h
> R 12651 /usr/include/sys/signal.h
> R 12651 /usr/include/sys/stat.h
> R 12651 /usr/include/sys/syslimits.h
> R 12651 /usr/include/sys/time.h
> R 12651 /usr/include/sys/timespec.h
> R 12651 /usr/include/sys/types.h
> R 12651 /usr/include/sys/unistd.h
> 
> 
> # ls -aC1
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/xlocale/
> | grep '\.h$'
> ls:
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/legacy/usr/include/xlocale/:
> No such file or directory
> 
> vs.
> 
> # grep ' /usr/include/xlocale/'
> /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/lib/libpmc/pmu-events/jevents.pieo.meta
> | sort -u
> R 12651 /usr/include/xlocale/_ctype.h
> R 12651 /usr/include/xlocale/_string.h
> R 12651 /usr/include/xlocale/_strings.h
> R 12651 /usr/include/xlocale/_time.h
> 
> 
> I do not know enough to classify each each /usr/include/ prefixed file
> as should-be-host/older-freebsd vs. should-be-newer-freebsd but some are
> clear to me based on the specific failure, such as:
> 
> R 12651 /usr/include/fts.h
> R 12651 /usr/include/ftw.h

Referencing ftw.h may have been wrong if /usr/main-src/include/fts.h
should have been avoided for jevents .

> 
> There could well be more of them that should be under
> legacy/usr/include/ someplace in order for jevents to be a always-valid
> build-tool.
> 
> A similar comparison/constrast for other programs showing /usr/include/
> prefixed paths in .meta files could be appropriate.
> 
> 


-- 
===
Mark Millard
marklmi at yahoo.com