Limit the lld usage to Linux, fix arm32 issue

Author: janvorli

eng/native/configuretools.cmake

@@ -65,7 +65,7 @@ endif()
 
 if (NOT CLR_CMAKE_HOST_WIN32)
 
-  if (CMAKE_C_COMPILER_ID MATCHES "Clang" AND NOT CLR_CMAKE_HOST_ARCH_S390X AND NOT CLR_CMAKE_HOST_OSX AND NOT CLR_CMAKE_HOST_FREEBSD)
+  if (CMAKE_C_COMPILER_ID MATCHES "Clang" AND CLR_CMAKE_HOST_LINUX AND NOT CLR_CMAKE_HOST_ARCH_S390X)
     add_linker_flag(-fuse-ld=lld)
     set(LD_LLVM 1)
   else()

src/coreclr/vm/arm/asmhelpers.S

@@ -986,13 +986,10 @@ g_rgWriteBarrierDescriptors:
     LEAF_ENTRY JIT_WriteBarrier_Callable
 
     // Branch to the write barrier
-    ldr     r2, 2f // or R3? See targetarm.h
+    ldr     r2, =JIT_WriteBarrier_Loc-(1f+4) // or R3? See targetarm.h
 1:
     add     r2, pc
-    ldr     r2, [r2]
     ldr     pc, [r2]
-2:
-    .long JIT_WriteBarrier_Loc(GOT_PREL)-((1b+4)-2b)
     LEAF_END JIT_WriteBarrier_Callable
 
 #ifdef FEATURE_READYTORUN

src/coreclr/vm/arm/pinvokestubs.S

@@ -94,7 +94,7 @@
         // r4 = pFrame
 
         // set first slot to the value of InlinedCallFrame::`vftable' (checked by runtime code)
-        ldr     r1, =_ZTV16InlinedCallFrame+8-2f
+        ldr     r1, =_ZTV16InlinedCallFrame+8-(2f+4)
 2:
         add     r1, pc
         str     r1, [r4]