Haiku support patches (#989)

* Haiku: fix broken gcc strong stack protector

* qemu: Backport minor Haiku fix

We need to push this fix upstream to qemu. If we don't
get it upstreamed, i'll circle back and patch it if
Unicorn updates its qemu version.

Makefile

@@ -139,6 +139,15 @@ UNICORN_CFLAGS := $(UNICORN_CFLAGS:-fPIC=)
 $(LIBNAME)_LDFLAGS += -Wl,--output-def,unicorn.def
 DO_WINDOWS_EXPORT = 1
 
+# Haiku
+else ifneq ($(filter Haiku%,$(UNAME_S)),)
+EXT = so
+VERSION_EXT = $(EXT).$(API_MAJOR)
+AR_EXT = a
+$(LIBNAME)_LDFLAGS += -Wl,-Bsymbolic-functions,-soname,lib$(LIBNAME).$(VERSION_EXT)
+UNICORN_CFLAGS := $(UNICORN_CFLAGS:-fPIC=)
+UNICORN_QEMU_FLAGS += --disable-stack-protector
+
 # Linux, Darwin
 else
 EXT = so

qemu/util/oslib-posix.c

@@ -45,7 +45,11 @@
 #include <sys/mman.h>
 #include <libgen.h>
 #include <setjmp.h>
+#ifdef __HAIKU__
+#include <posix/signal.h>
+#else
 #include <sys/signal.h>
+#endif
 
 #ifdef CONFIG_LINUX
 #if !defined(__CYGWIN__)