mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-15 10:17:20 +00:00
cbafd2630b
This makes it possible, through src.conf(5) settings, to select which LLVM targets you want to build during buildworld. The current list is: * (WITH|WITHOUT)_LLVM_TARGET_AARCH64 * (WITH|WITHOUT)_LLVM_TARGET_ARM * (WITH|WITHOUT)_LLVM_TARGET_MIPS * (WITH|WITHOUT)_LLVM_TARGET_POWERPC * (WITH|WITHOUT)_LLVM_TARGET_SPARC * (WITH|WITHOUT)_LLVM_TARGET_X86 To not influence anything right now, all of these are on by default, in situations where clang is enabled. Selectively turning a few targets off manually should work. Turning on only one target should work too, even if that target does not correspond to the build architecture. (In that case, LLVM_NATIVE_ARCH will not be defined, and you can only use the resulting clang executable for cross-compiling.) I performed a few measurements on one of the FreeBSD.org reference machines, building clang from scratch, with all targets enabled, and with only the x86 target enabled. The latter was ~12% faster in real time (on a 32-core box), and ~14% faster in user time. For a full buildworld the difference will probably be less pronounced, though. Reviewed by: bdrewery MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D11077 |
||
|---|---|---|
| .. | ||
| cross-build | ||
| make_check | ||
| mk | ||
| options | ||
| beinstall.sh | ||
| check-links.sh | ||
| dummy.c | ||
| futimens.c | ||
| Makefile | ||
| Makefile.depend | ||
| stat.h | ||
| stdlib.h | ||
| utimensat.c | ||