tests/tcg: move i386 specific tests into subdir

These only need to be built for i386 guests. This includes a stub
tests/tcg/i386/Makfile.target which absorbs some of what was in
tests/tcg/Makefile.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/tests/tcg/i386/hello-i386.c b/tests/tcg/i386/hello-i386.c
new file mode 100644
index 0000000000..fa00380de2
--- /dev/null
+++ b/tests/tcg/i386/hello-i386.c
@@ -0,0 +1,27 @@
+#include <asm/unistd.h>
+
+static inline void exit(int status)
+{
+  int __res;
+  __asm__ volatile ("movl %%ecx,%%ebx\n"\
+		    "int $0x80" \
+		    :  "=a" (__res) : "0" (__NR_exit),"c" ((long)(status)));
+}
+
+static inline int write(int fd, const char * buf, int len)
+{
+  int status;
+  __asm__ volatile ("pushl %%ebx\n"\
+		    "movl %%esi,%%ebx\n"\
+		    "int $0x80\n" \
+		    "popl %%ebx\n"\
+		    : "=a" (status) \
+		    : "0" (__NR_write),"S" ((long)(fd)),"c" ((long)(buf)),"d" ((long)(len)));
+  return status;
+}
+
+void _start(void)
+{
+    write(1, "Hello World\n", 12);
+    exit(0);
+}