tools: Detect A-profile ARM cores for hosted and sim builds

The only v7-a targets we have are built using the androidndk (with gcc
4.9) but it is possible to perform "self-hosted" builds for eg the
simulator or the sdlapp.

Where this gets messy is the considerable amount of inline arm
asm we have.

Native builds will need considerably more work to support
v7-a processors, but we have to start somewhere.

(Note that this contains parts of commit 508bfabe8, which had to
 be reverted due to breakage)

Change-Id: Ia1c8e10d21a976c68fdaae58e4d776854b63186c

tools/configure

@@ -4735,7 +4735,10 @@ if [ -z "$arch" ]; then
 	    GCCOPTS="$GCCOPTS -masm-syntax-unified"
 	fi
         case "$arch_profile" in
-            77)
+            65) # Cortex-A
+                arch_profile=application
+                ;;
+            77) # Cortex-M
                 arch_profile=micro
 
                 # We have a lot of assembly written for ARM32, which won't
@@ -4857,6 +4860,7 @@ cat > autoconf.h.new <<EOF
 
 #define ARM_PROFILE_CLASSIC     0       /* Classic ARM cores (<= ARMv6) */
 #define ARM_PROFILE_MICRO       1       /* ARMv6/ARMv7+ M-profile cores */
+#define ARM_PROFILE_APPLICATION 2       /* ARMv7+ A-profile cores       */
 
 /* Define target machine architecture */
 ${Darch}