Fix building builtins via plain "make"

[mstorsjo]

Summary

When the autoconf support was removed in SVN rev 258863, the
references to profiling were removed from clang_darwin.mk, but
not from clang_linux.mk.

This fixes e.g. "make clang_linux-builtins-x86_64", which previously
errored out with this:
Makefile:267: *** SelectFunctionDir: invalid function name "GCDAProfiling" (no such function). Stop.

[mstorsjo]

Ping

[beanz]

@mstorsjo, I don't believe we should accept this patch because building compiler-rt without CMake is not supported. These files escaped my initial purge of makefiles because there were specific use cases that CMake couldn't handle. Since then we've made extensions to our CMake system to cover the missing use cases, so these files should all be removed. I've sent out a patch for review which does exactly that (D23777).

If there is a reason you're still using make instead of CMake when building the builtins, you should speak up now, because I think all use cases are covered.

[mstorsjo]

Ok, fair enough - abandoning. The only reason I tried this instead of cmake was because I started off of someone's build script that used this way of building, and it didn't seem to be purged yet, only slightly broken.

make/platform/clang_linux.mk

else
   SupportedArches := x86_64
   ifeq ($(call TryCompile,$(CC),$(test_source),-m32),0)
     SupportedArches += i386
   endif
 endif
 
 # Build runtime libraries for i386.
 ifeq ($(call contains,$(SupportedArches),i386),true)
-Configs += builtins-i386 profile-i386
+Configs += builtins-i386
 Arch.builtins-i386 := i386
-Arch.profile-i386 := i386
 endif
 
 # Build runtime libraries for x86_64.
 ifeq ($(call contains,$(SupportedArches),x86_64),true)
-Configs += builtins-x86_64 profile-x86_64
+Configs += builtins-x86_64
 Arch.builtins-x86_64 := x86_64
-Arch.profile-x86_64 := x86_64
 endif
 
 endif
 
 endif
 
 ###
 
 CFLAGS := -Wall -Werror -O3 -fomit-frame-pointer
 
 CFLAGS.builtins-i386 := $(CFLAGS) -m32
 CFLAGS.builtins-x86_64 := $(CFLAGS) -m64
-CFLAGS.profile-i386 := $(CFLAGS) -m32
-CFLAGS.profile-x86_64 := $(CFLAGS) -m64
 
 FUNCTIONS.builtins-i386 := $(CommonFunctions) $(ArchFunctions.i386)
 FUNCTIONS.builtins-x86_64 := $(CommonFunctions) $(ArchFunctions.x86_64)
-FUNCTIONS.profile-i386 := GCDAProfiling InstrProfiling InstrProfilingBuffer \
-                          InstrProfilingFile InstrProfilingPlatformOther \
-                          InstrProfilingRuntime InstrProfilingUtil \
-                          InstrProfilingWriter InstrProfilingValue \
-                          InstrProfilingMerge InstrProfilingMergeFile
-FUNCTIONS.profile-x86_64 := $(FUNCTIONS.profile-i386)
 
 # Always use optimized variants.
 OPTIMIZED := 1
 
 # We don't need to use visibility hidden on Linux.
 VISIBILITY_HIDDEN := 0
 
 SHARED_LIBRARY_SUFFIX := so