head -r335799 -> -r335812: "Not bootstrapping a cross-compiler" vs. "libclang will be built for bootstrapping a cross-linker": both being reported together

[Mark Millard]

On 2018-Jun-29, at 10:45 PM, Mark Millard <marklmi at yahoo.com> wrote:

> Going from -r335799 to -r335812 buildworld buildkernel reported:
> 
> --- buildworld ---
> make[1]: "/usr/src/Makefile.inc1" line 342: SYSTEM_COMPILER: Determined that CC=cc matches the source tree.  Not bootstrapping a cross-compiler.
> make[1]: "/usr/src/Makefile.inc1" line 349: SYSTEM_LINKER: libclang will be built for bootstrapping a cross-linker.
> 
> and later did:
> 
> ===> lib/clang/libllvm (all)
> Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm/X86GenAsmWriter.inc
> Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm/X86GenAsmWriter1.inc
> . . .

and:

--- libllvm.a ---
building static llvm library
--- all_subdir_lib/clang/libclang ---
===> lib/clang/libclang (all)
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang/clang/AST/AttrImpl.inc
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang/clang/AST/AttrVisitor.inc
. . .
===> usr.bin/clang/lld (obj,all,install)
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ELF/Options.inc
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/Common/TargetOptionsCommandFlags.o
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ELF/Driver.o
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ELF/DriverUtils.o
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ELF/InputFiles.o
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ELF/LTO.o
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ELF/ScriptParser.o
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ld.lld.full
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ld.lld.debug
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/ld.lld
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/_proginstall
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/tmp/obj-tools/usr.bin/clang/lld/_installlinks
. . .

I guess it just looked odd to me that needing to rebuild libclang did
not imply needing to rebuild the compiler but only lld.

It is doing similarly for:

--- lib__L ---
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/lib/clang/libllvm/X86GenGlobalISel.inc
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/lib/clang/libllvm/X86GenInstrInfo.inc
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/lib/clang/libllvm/X86GenRegisterBank.inc
Building /usr/obj/amd64_clang/amd64.amd64/usr/src/amd64.amd64/lib/clang/libllvm/X86GenRegisterInfo.inc
. . .

(I'll note that jumping from -r335245 to -r335799 also rebuilt such things
and more, as expected for an llvm version update. -r335799 to -r335812 is
less obvious.)


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)