Date: Tue, 18 Feb 2025 14:56:18 -0700 From: Warner Losh <imp@bsdimp.com> To: Mark Millard <marklmi@yahoo.com> Cc: freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: No GENERIC.hints for aarch64 (arm64?), armv7, and more; also /sys/ based paths are referenced but seem to not be universally standard; also which ARCH standard in path? Message-ID: <CANCZdfqSG2j7PDenfAC9fboC4hYuq0ND7hxLunO0yosKJ0UjCw@mail.gmail.com> In-Reply-To: <82B278D1-6483-438A-AAA5-DFD809B2E736@yahoo.com>
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[-- Attachment #1 --] On Sat, Feb 15, 2025 at 10:04 AM Mark Millard <marklmi@yahoo.com> wrote: > [This seems likely to not be limited to main [so: 15 as stands]. > But I'm using main as the example for the issue.] > > In: > > # man 5 device.hints > DEVICE.HINTS(5) FreeBSD File Formats Manual > DEVICE.HINTS(5) > > NAME > device.hints – device resource hints > > . . . > > FILES > /boot/device.hints Device resource hints > file. > /sys/ARCH/conf/GENERIC.hints Sample resource hints for > the > GENERIC kernel. > /sys/ARCH/conf/NOTES Notes on the kernel > configuration file and > device > resource hints. > . . . > > > > For reference: > > # find -s / -name GENERIC.hints -print > /usr/src/sys/amd64/conf/GENERIC.hints > /usr/src/sys/i386/conf/GENERIC.hints > /usr/src/sys/powerpc/conf/GENERIC.hints > > > Multiple points: > > ) It seems that aarch64 (arm64?) and armv7 (arm?) have no > such GENERIC.hints file. The same goes for riscv64 > (riscv?). > > The intent for powerpc64 , powerpc64le , and powerpcspe > may have the same issue. > > > ) At least for how the local systems were installed, there > is no such place predefined as /sys/ , not even as a > symbolic link. "man 7 hier" does not list such. > > So it seems /sys -> /usr/src/sys is intended. (But > /usr/src/ need not have been populated, leaving a > lack of any GENERIC.hints in such a case.) > > Best to not to depend on /sys in the notation shown? > > > ) The /ARCH/ reference is unclear vs. MACHINE, > MACHINE_CPUARCH, and MACHINE_ARCH. The example paths > existing for GENERIC.hints do not help because they > all allow MACHINE == MACHINE_CPUARCH , > MACHINE == MACHINE_ARCH , and > MACHINE_CPUARCH == MACHINE_ARCH. However, based on the > NOTE paths: > Like all things kernel, it's MACHINE. > > # find -s /usr/src/ -name NOTES -print | grep /conf/NOTES | more > /usr/src/sys/amd64/conf/NOTES > /usr/src/sys/arm/conf/NOTES > /usr/src/sys/arm64/conf/NOTES > /usr/src/sys/conf/NOTES > /usr/src/sys/i386/conf/NOTES > /usr/src/sys/powerpc/conf/NOTES > /usr/src/sys/riscv/conf/NOTES > /usr/src/sys/x86/conf/NOTES > > None of of the MACHINE* are right: x86 is not one of > any of the 3. Otherwise /arm64/conf/NOTES would suggest > MACHINE as the only possibility if /ARCH/ was uniform > for relative to the 3 MACHINE* possibilities. So?: > > /usr/src/sys/arm64/conf/GENERIC.hints > /usr/src/sys/arm/conf/GENERIC.hints > /usr/src/sys/riscv/conf/GENERIC.hints > > with no aarch64 , armv7 , powerpc64* , powerpcspe , or > riscv64 examples? > We store these in /dev/null these days :). I'll create empty ones for this. Warner > === > Mark Millard > marklmi at yahoo.com > > > [-- Attachment #2 --] <div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sat, Feb 15, 2025 at 10:04 AM Mark Millard <<a href="mailto:marklmi@yahoo.com">marklmi@yahoo.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">[This seems likely to not be limited to main [so: 15 as stands].<br> But I'm using main as the example for the issue.]<br> <br> In:<br> <br> # man 5 device.hints<br> DEVICE.HINTS(5) FreeBSD File Formats Manual DEVICE.HINTS(5)<br> <br> NAME<br> device.hints – device resource hints<br> <br> . . .<br> <br> FILES<br> /boot/device.hints Device resource hints file.<br> /sys/ARCH/conf/GENERIC.hints Sample resource hints for the<br> GENERIC kernel.<br> /sys/ARCH/conf/NOTES Notes on the kernel<br> configuration file and device<br> resource hints.<br> . . .<br> <br> <br> <br> For reference:<br> <br> # find -s / -name GENERIC.hints -print<br> /usr/src/sys/amd64/conf/GENERIC.hints<br> /usr/src/sys/i386/conf/GENERIC.hints<br> /usr/src/sys/powerpc/conf/GENERIC.hints<br> <br> <br> Multiple points:<br> <br> ) It seems that aarch64 (arm64?) and armv7 (arm?) have no<br> such GENERIC.hints file. The same goes for riscv64<br> (riscv?).<br> <br> The intent for powerpc64 , powerpc64le , and powerpcspe<br> may have the same issue.<br> <br> <br> ) At least for how the local systems were installed, there<br> is no such place predefined as /sys/ , not even as a<br> symbolic link. "man 7 hier" does not list such.<br> <br> So it seems /sys -> /usr/src/sys is intended. (But<br> /usr/src/ need not have been populated, leaving a<br> lack of any GENERIC.hints in such a case.)<br> <br> Best to not to depend on /sys in the notation shown?<br> <br> <br> ) The /ARCH/ reference is unclear vs. MACHINE,<br> MACHINE_CPUARCH, and MACHINE_ARCH. The example paths<br> existing for GENERIC.hints do not help because they<br> all allow MACHINE == MACHINE_CPUARCH ,<br> MACHINE == MACHINE_ARCH , and<br> MACHINE_CPUARCH == MACHINE_ARCH. However, based on the<br> NOTE paths:<br></blockquote><div><br></div><div>Like all things kernel, it's MACHINE.</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <br> # find -s /usr/src/ -name NOTES -print | grep /conf/NOTES | more<br> /usr/src/sys/amd64/conf/NOTES<br> /usr/src/sys/arm/conf/NOTES<br> /usr/src/sys/arm64/conf/NOTES<br> /usr/src/sys/conf/NOTES<br> /usr/src/sys/i386/conf/NOTES<br> /usr/src/sys/powerpc/conf/NOTES<br> /usr/src/sys/riscv/conf/NOTES<br> /usr/src/sys/x86/conf/NOTES<br> <br> None of of the MACHINE* are right: x86 is not one of<br> any of the 3. Otherwise /arm64/conf/NOTES would suggest<br> MACHINE as the only possibility if /ARCH/ was uniform<br> for relative to the 3 MACHINE* possibilities. So?:<br> <br> /usr/src/sys/arm64/conf/GENERIC.hints<br> /usr/src/sys/arm/conf/GENERIC.hints<br> /usr/src/sys/riscv/conf/GENERIC.hints<br> <br> with no aarch64 , armv7 , powerpc64* , powerpcspe , or<br> riscv64 examples?<br></blockquote><div><br></div><div>We store these in /dev/null these days :).</div><div><br></div><div>I'll create empty ones for this.</div><div><br></div><div>Warner</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> ===<br> Mark Millard<br> marklmi at <a href="http://yahoo.com" rel="noreferrer" target="_blank">yahoo.com</a><br> <br> <br> </blockquote></div></div>help
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