Use qemu_irq for a reset signal between DMA and ESP/Lance

[qemu] / exec-all.h

diff --git a/exec-all.h b/exec-all.h
index dbfe457..31914ee 100644 (file)
--- a/exec-all.h
+++ b/exec-all.h
@@ -340,14 +340,32 @@ do {\
                  "1:\n");\
 } while (0)
 
+#elif defined(__s390__)
+/* GCC spills R13, so we have to restore it before branching away */
+
+#define GOTO_TB(opname, tbparam, n)\
+do {\
+    static void __attribute__((used)) *dummy ## n = &&dummy_label ## n;\
+    static void __attribute__((used)) *__op_label ## n \
+        __asm__(ASM_OP_LABEL_NAME(n, opname)) = &&label ## n;\
+       __asm__ __volatile__ ( \
+               "l %%r13,52(%%r15)\n" \
+               "br %0\n" \
+       : : "r" (((TranslationBlock*)tbparam)->tb_next[n]));\
+       \
+       for(;*((int*)0);); /* just to keep GCC busy */ \
+label ## n: ;\
+dummy_label ## n: ;\
+} while(0)
+
 #else
 
 /* jump to next block operations (more portable code, does not need
    cache flushing, but slower because of indirect jump) */
 #define GOTO_TB(opname, tbparam, n)\
 do {\
-    static void __attribute__((unused)) *dummy ## n = &&dummy_label ## n;\
-    static void __attribute__((unused)) *__op_label ## n \
+    static void __attribute__((used)) *dummy ## n = &&dummy_label ## n;\
+    static void __attribute__((used)) *__op_label ## n \
         __asm__(ASM_OP_LABEL_NAME(n, opname)) = &&label ## n;\
     goto *(void *)(((TranslationBlock *)tbparam)->tb_next[n]);\
 label ## n: ;\