2014-12-12 Stefan Wallentowitz <stefan.wallentowitz@tum.de>

* configure.host: or1knd support, OpenRISC without delay slot
        * libc/include/machine/setjmp.h: Add or1knd
        * libc/machine/or1k/setjmp.S: Optional delay slot

newlib/ChangeLog

@@ -1,3 +1,9 @@
+2014-12-12  Stefan Wallentowitz  <stefan.wallentowitz@tum.de>
+
+	* configure.host: or1knd support, OpenRISC without delay slot
+	* libc/include/machine/setjmp.h: Add or1knd
+	* libc/machine/or1k/setjmp.S: Optional delay slot
+
 2014-12-12  Stefan Wallentowitz  <stefan.wallentowitz@tum.de>
 
 	* libc/machine/or1k/setjmp.S: Remove save/restore of r3-r8

newlib/configure.host

@@ -245,7 +245,7 @@ case "${host_cpu}" in
   nios2*)
 	machine_dir=nios2
 	;;
-  or1k*)
+  or1k*|or1knd*)
 	machine_dir=or1k
 	;;
   powerpc*)

newlib/libc/include/machine/setjmp.h

@@ -1,7 +1,7 @@
 
 _BEGIN_STD_C
 
-#ifdef __or1k__
+#if defined(__or1k__) || defined(__or1knd__)
 #define _JBLEN 31 /* 32 GPRs - r0 */
 #define _JBTYPE unsigned long
 #endif

newlib/libc/machine/or1k/setjmp.S

@@ -49,8 +49,18 @@ setjmp:
 	l.mfspr	r13, r0, 17
 	l.sw	124(r3), r13
 /* Set result register to 0 and jump */
+// Different cases for optional delay slot
+#if defined(__OR1K_NODELAY__)
+	l.addi	r11, r0, 0
+	l.jr	r9
+#elif defined(__OR1K_DELAY__)
 	l.jr	r9
 	l.addi	r11, r0, 0
+#else
+	l.addi	r11, r0, 0
+	l.jr	r9
+	l.nop
+#endif
 
 .align  4
 .global longjmp
@@ -83,7 +93,16 @@ longjmp:
 	l.lwz	r24, 92(r3)
 	l.lwz	r26, 100(r3)
 	l.lwz	r28, 108(r3)
-	l.lwz	r30, 116(r3)
 
+// Different cases for optional delay slot
+#if defined(__OR1K_NODELAY__)
+	l.lwz	r30, 116(r3)
+	l.jr	r9
+#elif defined(__OR1K_DELAY__)
+	l.jr	r9
+	l.lwz	r30, 116(r3)
+#else
+	l.lwz	r30, 116(r3)
 	l.jr	r9
 	l.nop
+#endif