arm64 OpenBSD

Author: KenDickey

building/linux64ARMv8/squeak.cog.spur/build.debug/mvm

@@ -14,6 +14,7 @@ if [ `uname` = "OpenBSD" ]; then
     LIBRT=""
 # OpenBSD has problems with fast-bitblt under gcc and clang
     FASTBITBLT=""
+    OPT="$OPT -DMUSL"
 # Prefer clang over gcc if available
     if [ -n "$(command -v clang || true)" ]; then CC=clang; else CC=gcc; fi
 else # non-OpenBSD Linux

building/linux64ARMv8/squeak.cog.spur/build/mvm

@@ -6,6 +6,7 @@ INSTALLDIR=sqcogspur64ARMv8linuxht
 # tpr - add enablementisation of fast bitblt ben avison code
 MACHINE="-march=armv8-a -mtune=cortex-a72"
 OPT="-g -O2 -DNDEBUG -DDEBUGVM=0 -D_GNU_SOURCE -DUSEEVDEV"
+
 ##OPT="-g -O3  -DMUSL -DNDEBUG -DDEBUGVM=0"
 
 if [ `uname` = "OpenBSD" ]; then
@@ -16,6 +17,7 @@ if [ `uname` = "OpenBSD" ]; then
     LIBRT=""
 # OpenBSD has problems with fast-bitblt under gcc and clang
     FASTBITBLT=""
+    OPT="$OPT -DMUSL"
 # Prefer clang over gcc if available
     if [ -n "$(command -v clang || true)" ]; then CC=clang; else CC=gcc; fi
 else # non-OpenBSD Linux

platforms/unix/vm/sqUnixMemory.c

@@ -87,7 +87,11 @@ int mmapErrno = 0;
 #endif
 
 #define MAP_PROT	(PROT_READ | PROT_WRITE)
+#ifdef __OpenBSD__
+#define MAP_FLAGS	(MAP_ANON | MAP_PRIVATE | MAP_STACK)
+#else
 #define MAP_FLAGS	(MAP_ANON | MAP_PRIVATE)
+#endif
 
 extern int useMmap;
 /* Since Cog needs to make memory executable via mprotect, and since mprotect