571e134eea
- Define TARGET_CPUARCH and use in libclang_rt as the basis for CRTARCH When cross-compiling, the wrong architecture was being embedded in the libclang_rt binary filenames. It should be based on TARGET_ARCH (target), not MACHINE_ARCH (host). If TARGET_ARCH isn't defined (host-builds), fallback to MACHINE_ARCH. - Define CRTARCH to armhf when TARGET/TARGET_ARCH are set to arm/armv[67] TARGET_ABI/TARGET_CPU in Makefile.inc1 sets the ABI to gnueabihf, which affects the clang lookup path per `getArchNameForCompilerRTLib(..)` in contrib/llvm/tools/clang/lib/Driver/ToolChain.cpp, so chase clang and Linux's assumed naming convention for hard-float arm architectures. CROSSENV (in Makefile.inc1) sets CPUTYPE/MACHINE(_ARCH)? to the TARGET*-relevant values when building the `libraries` target, so test those variables instead. - Add OLD_FILES/OLD_LIBS entries for TARGET/TARGET_ARCH == arm/armv[67]. This impacts only arm/armv6 and arm/armv7. PR: 222925
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