[libc] fix fullbuild handling for macro functions

[michaelrj]

Summary

Now they're only included at all if the mode is fullbuild.

libc/config/linux/x86_64/entrypoints.txt

set(TARGET_LIBC_ENTRYPOINTS
     # fcntl.h entrypoints
     libc.src.fcntl.creat
     libc.src.fcntl.open
     libc.src.fcntl.openat
 
     # sched.h entrypoints
     libc.src.sched.sched_getaffinity
     libc.src.sched.sched_setaffinity
-    libc.src.sched.sched_getcpucount
 
     # string.h entrypoints
     libc.src.string.bcmp
     libc.src.string.bzero
     libc.src.string.memccpy
     libc.src.string.memchr
     libc.src.string.memcmp
     libc.src.string.memcpy
set(TARGET_LIBC_ENTRYPOINTS
     libc.src.unistd.pread
     libc.src.unistd.pwrite
     libc.src.unistd.read
     libc.src.unistd.readlink
     libc.src.unistd.readlinkat
     libc.src.unistd.rmdir
     libc.src.unistd.symlink
     libc.src.unistd.symlinkat
-    libc.src.unistd.__llvm_libc_syscall
     libc.src.unistd.truncate
     libc.src.unistd.unlink
     libc.src.unistd.unlinkat
     libc.src.unistd.write
 )
 
 set(TARGET_LIBM_ENTRYPOINTS
     # fenv.h entrypoints
list(APPEND TARGET_LIBC_ENTRYPOINTS
     libc.src.pthread.pthread_mutexattr_getrobust
     libc.src.pthread.pthread_mutexattr_gettype
     libc.src.pthread.pthread_mutexattr_setpshared
     libc.src.pthread.pthread_mutexattr_setrobust
     libc.src.pthread.pthread_mutexattr_settype
     libc.src.pthread.pthread_once
     libc.src.pthread.pthread_setspecific
 
+    # sched.h entrypoints
+    libc.src.sched.sched_getcpucount
+
     # stdio.h entrypoints
     libc.src.stdio.clearerr
     libc.src.stdio.clearerr_unlocked
     libc.src.stdio.fclose
     libc.src.stdio.flockfile
     libc.src.stdio.feof
     libc.src.stdio.feof_unlocked
     libc.src.stdio.ferror
list(APPEND TARGET_LIBC_ENTRYPOINTS
     libc.src.time.gmtime
     libc.src.time.gmtime_r
     libc.src.time.mktime
     libc.src.time.nanosleep
     libc.src.time.clock_gettime
 
     # unistd.h entrypoints
     libc.src.unistd.fork
+    libc.src.unistd.__llvm_libc_syscall
   )
 endif()
 
 set(TARGET_LLVMLIBC_ENTRYPOINTS
   ${TARGET_LIBC_ENTRYPOINTS}
   ${TARGET_LIBM_ENTRYPOINTS}
 )

libc/test/src/sched/CMakeLists.txt

DEPENDS
     libc.include.sched
     libc.include.sys_syscall
     libc.src.__support.OSUtil.osutil
     libc.src.sched.sched_getaffinity
     libc.src.sched.sched_setaffinity
     libc.test.errno_setter_matcher
 )
 
-# Since this test depends on a macro defined in the sched header, it won't work
-# without fullbuild.
-if(LLVM_LIBC_FULL_BUILD)
-  add_libc_unittest(
-    cpu_count_test
-    SUITE
-      libc_sched_unittests
-    SRCS
-      cpu_count_test.cpp
-    DEPENDS
-      libc.include.errno
-      libc.include.sched
-      libc.include.sys_syscall
-      libc.src.__support.OSUtil.osutil
-      libc.src.sched.sched_getaffinity
-      libc.src.sched.sched_getcpucount
-      libc.test.errno_setter_matcher
-  )
-endif()

libc/test/src/unistd/CMakeLists.txt

add_libc_unittest(
   SUITE
     libc_unistd_unittests
   SRCS
     geteuid_test.cpp
   DEPENDS
     libc.src.unistd.geteuid
 )
 
-if(LLVM_LIBC_FULL_BUILD)
-  add_libc_unittest(
-    syscall_test
-    SUITE
-      libc_unistd_unittests
-    SRCS
-      syscall_test.cpp
-    DEPENDS
-      libc.src.unistd.__llvm_libc_syscall
-      libc.include.errno
-      libc.include.unistd
-      libc.include.fcntl
-      libc.include.sys_syscall
-      libc.test.errno_setter_matcher
-  )
-endif()