basic signal handling


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@41 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index ae86176..77e9eca 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -3,6 +3,12 @@
 
 #include "thunk.h"
 
+#ifdef TARGET_I386
+
+/* default linux values for the selectors */
+#define __USER_CS	(0x23)
+#define __USER_DS	(0x2B)
+
 struct target_pt_regs {
 	long ebx;
 	long ecx;
@@ -21,6 +27,8 @@
 	int  xss;
 };
 
+#endif
+
 /* This struct is used to hold certain information about the image.
  * Basically, it replicates in user space what would be certain
  * task_struct fields in the kernel
@@ -53,5 +61,7 @@
 void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
 struct CPUX86State;
 void cpu_loop(struct CPUX86State *env);
+void process_pending_signals(void *cpu_env);
+void signal_init(void);
 
 #endif