On 2017-Aug-29, at 3:08 PM, Mark Millard <mar...@dsl-only.net> wrote:


> On 2017-Aug-29, at 2:38 PM, Bryan Drewery <bdrew...@freebsd.org> wrote:
> 
>> On 8/29/2017 2:35 PM, Mark Millard wrote:
>>> In a command command such as:
>>> 
>>> poudriere jail -c -j zrFBSDx64SLppc64 -a powerpc.powerpc64 -x -m null -M 
>>> /usr/obj/DESTDIRs/clang-powerpc64-altbinutils-installworld-dist-from-src -S 
>>> /usr/src/ -v 11.1-STABLE
>>> 
>>> the -x is silently ignored. I added the "build_native_xtools" into
>>> the /usr/local/share/poudriere/jail.sh code to have it contain:
>> 
>> I consider '-m null' to be a read-only operation on the provided path.
>> Poudriere did not build it, so I would rather not force a build
>> procedure on it for native-xtools either.
>> 
>> On the otherhand, if we store the native-xtools files outside of the
>> jail path then it will not be a problem.
> 
> Okay. I was just looking for a way to deal with local
> experimental patches in the system and/or ports rather
> than building from official materials, checking how
> things seem to go for builds.
> 
> I ended up with the following nxb* directories in
> /usr/obj/. . . for my context:
> 
> /usr/obj/powerpc.powerpc/nxb
> /usr/obj/arm.armv6/nxb
> /usr/obj/arm64.aarch64/nxb
> /usr/obj/DESTDIRs/clang-armv7-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/clang-cortexA53-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/gcc421-powerpc-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/clang-powerpc-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/clang-powerpc64-altbinutils-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/clang-cortexA57-installworld-dist-from-src/nxb-bin
> /usr/obj/powerpc.powerpc64/nxb

I should also have compared and contrasted with my
buildworld/buildkernel directory trees:

# ls -dlT /usr/obj/*/*.*
drwxr-xr-x  3 root  wheel  3 Aug 13 15:16:17 2017 
/usr/obj/amd64_clang/amd64.amd64
drwxr-xr-x  3 root  wheel  3 Aug 29 01:22:29 2017 /usr/obj/armv7_clang/arm.armv6
drwxr-xr-x  3 root  wheel  3 Aug 29 02:12:29 2017 
/usr/obj/cortexA53_clang/arm64.aarch64
drwxr-xr-x  3 root  wheel  3 Aug 29 02:45:54 2017 
/usr/obj/cortexA57_clang/arm64.aarch64
drwxr-xr-x  3 root  wheel  3 Aug 28 16:34:43 2017 
/usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64
drwxr-xr-x  3 root  wheel  3 Aug 29 01:48:58 2017 
/usr/obj/powerpcvtsc_clang/powerpc.powerpc
drwxr-xr-x  3 root  wheel  3 Aug 29 02:38:08 2017 
/usr/obj/powerpcvtsc_clang_gcc421/powerpc.powerpc

(For that last clang built a gcc421 bootstrap compiler.)

These were built with the likes of:

# more 
~/sys_build_scripts.amd64-host/make_armv7_nodebug_clang_bootstrap-amd64-host.sh 
kldload -n filemon && \
script 
~/sys_typescripts/typescript_make_armv7_nodebug_clang_bootstrap-amd64-host-$(date
 +%Y-%m-%d:%H:%M:%S) \
env __MAKE_CONF="/root/src.configs/make.conf" SRCCONF="/dev/null" 
SRC_ENV_CONF="/root/src.configs/src.conf.armv7-clang-bootstrap.amd64-host" \
WITH_META_MODE=yes \
MAKEOBJDIRPREFIX="/usr/obj/armv7_clang" \
make $*


So the "nxb" directories were outside my build trees.

The DESTDIRs listed that had "nxb-bin" directories were
just for the poudriere use in the first place. For other
uses I'd have created separate install trees with their
own names.

> However, for example, I did the powerpc ones in
> the order (as an experiment that I did not expect
> to "work"):
> 
> /usr/obj/DESTDIRs/clang-powerpc-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/gcc421-powerpc-installworld-dist-from-src/nxb-bin
> 
> and the second reused the material from the first -x . In other
> words: the native compiler ended up being based on clang for the
> later gcc421 based jail attempt.
> 
> A similar point goes for the pair (in order):
> 
> /usr/obj/DESTDIRs/clang-cortexA53-installworld-dist-from-src/nxb-bin
> /usr/obj/DESTDIRs/clang-cortexA57-installworld-dist-from-src/nxb-bin
> 
> in that the A57 one bound to the prior A53 -x content.
> 
> I'm not claiming a problem, just something to know to
> expect to avoid. (My 32-bit powerpc activity has lead
> to building things based on both compilers because of
> the kernel build only working for gcc421-based builds.
> Such odd combinations are likely rare.)
> 
>>> 
>>>       null)
>>>               JAILFS=none
>>>               FCT=build_native_xtools
>>>               ;;
>>> 
>>> in order to avoid this.
>>> 
>>> A similar "jail -c" for "-j zrFBSDx64SLarmv7 -a arm.armv6" (and
>>> -M /usr/obj/DESTDIRs/clang-armv7-installworld-dist-from-src 
>>> in my context) and the later bulk build for it seems to be
>>> working fine for building lang/gcc7 (as a test). So far:
> . . .


===
Mark Millard
markmi at dsl-only.net

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