This was an incomplete item from r291561. The host {clang,llvm}-tblgen
binaries were used, rather than the ones built into the host stagedir by
normal Makefile.depend dependencies on tblgen.
MFC after: 1 week
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CCACHE_DIR needs to be resolved to its full path before processing
legacy.meta or meta mode may see the change to the stats file.
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Extend it to other cases of meta mode cookies so they get the proper rm
cookie behavior when a .meta file detects it needs to rebuild and fails.
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- Support more of the toolchain from TOOLSDIR.
- This also improves 'make bootstrap-tools' to pass, for example,
AS=/usr/bin/as to Makefile.inc1, which will tell cross-tools to use
external toolchain support and avoid building things we won't be using
in the build.
- Always set the PATH to contain the staged TOOLSDIR directories when
not building the bootstrap targets.
The previous version was only setting this at MAKE.LEVEL==0 and if the
TOOLSDIR existed. Both of these prevented using staged tools that were
built during the build though as DIRDEPS with .host dependencies, such
as the fix for needing usr.bin/localedef.host in r291311.
This is not a common tool so we must build and use it during the build,
and need to be prepared to change PATH as soon as it appears.
This should also fix the issue of host dependencies disappearing from
Makefile.depend and then reappearing due to the start of the fresh build not
having the directory yet, resulting in the tools that were built not actually
being used.
- Only use LEGACY_TOOLS while building in Makefile.inc1. After r291317
and r291546 there is no need to add LEGACY_TOOLS into the PATH for
the pseudo/targets/toolchain build.
- Because the pseudo/targets/toolchain will now build its own
[clang-]tblgen, the special logic in clang.build.mk is no longer needed.
- LEGACY_TOOLS is no longer used outside of targets/pseudo/bootstrap-tools
so is no longer passed into the environment in its build.
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toolchain.
This change prevents building of [clang-]tblgen, which is unneeded due
to already being a host dependency where needed for
targets/pseudo/toolchain.
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Now that OBJTOP is assumed to be proper, it needs to be overridden for
the bootstrap-tools phase to ensure it is not kept as the top-level
OBJTOP. Otherwise the libraries were not found during the
bootstrap-tools phase.
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The main problem was bitrot after elftoolchain being swapped in for the
GNU toolchain.
This also reworks how the list of 'host allowed' libraries is determined
to only allow INTERNALLIBs, which is needed for libelftc to come in.
For usr.bin/readelf use the same hack, as libelf and libdward, to bring in
the needed sys/ headers for host builds. This has not yet been a problem due
to readelf not being built as a host tool in buildworld. This is possible
in the meta build though when building the toolchain.
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This is just as Makefile.inc1 does it for these phases. Otherwise some
of the build tools are not found and used properly, such as 'make-roken'
in the kerberos5 build on older releases.
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For this case, the normal META MODE staging logic should be used. The
BSARGS having DESTDIR= is due to Makefile.inc1 overriding DESTDIR to
something when appropriate. For the toolchain stage META MODE is in charge of
it, not Makefile.inc1.
At least include/, if staging it to the host stagedir, was impacted from
this. Staging of include.host is not yet done.
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This both avoids some dependencies on xinstall.host and allows
bootstrapping on older releases to work due to lack of at least 'install -l'
support.
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