patch-2.4.19 linux-2.4.19/arch/ppc64/xmon/setjmp.c

• Lines: 78
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/ppc64/xmon/setjmp.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/arch/ppc64/xmon/setjmp.c linux-2.4.19/arch/ppc64/xmon/setjmp.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 1996 Paul Mackerras.
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ * NB this file must be compiled with -O2.
+ */
+
+int
+xmon_setjmp(long *buf)  /* NOTE: assert(sizeof(buf) > 184) */
+{
+	/* XXX should save fp regs as well */
+	asm volatile (
+	"mflr 0; std 0,0(%0)\n\
+	 std	1,8(%0)\n\
+	 std	2,16(%0)\n\
+	 mfcr 0; std 0,24(%0)\n\
+	 std	13,32(%0)\n\
+	 std	14,40(%0)\n\
+	 std	15,48(%0)\n\
+	 std	16,56(%0)\n\
+	 std	17,64(%0)\n\
+	 std	18,72(%0)\n\
+	 std	19,80(%0)\n\
+	 std	20,88(%0)\n\
+	 std	21,96(%0)\n\
+	 std	22,104(%0)\n\
+	 std	23,112(%0)\n\
+	 std	24,120(%0)\n\
+	 std	25,128(%0)\n\
+	 std	26,136(%0)\n\
+	 std	27,144(%0)\n\
+	 std	28,152(%0)\n\
+	 std	29,160(%0)\n\
+	 std	30,168(%0)\n\
+	 std	31,176(%0)\n\
+	 " : : "r" (buf));
+    return 0;
+}
+
+void
+xmon_longjmp(long *buf, int val)
+{
+	if (val == 0)
+		val = 1;
+	asm volatile (
+	"ld	13,32(%0)\n\
+	 ld	14,40(%0)\n\
+	 ld	15,48(%0)\n\
+	 ld	16,56(%0)\n\
+	 ld	17,64(%0)\n\
+	 ld	18,72(%0)\n\
+	 ld	19,80(%0)\n\
+	 ld	20,88(%0)\n\
+	 ld	21,96(%0)\n\
+	 ld	22,104(%0)\n\
+	 ld	23,112(%0)\n\
+	 ld	24,120(%0)\n\
+	 ld	25,128(%0)\n\
+	 ld	26,136(%0)\n\
+	 ld	27,144(%0)\n\
+	 ld	28,152(%0)\n\
+	 ld	29,160(%0)\n\
+	 ld	30,168(%0)\n\
+	 ld	31,176(%0)\n\
+	 ld	0,24(%0)\n\
+	 mtcrf	0x38,0\n\
+	 ld	0,0(%0)\n\
+	 ld	1,8(%0)\n\
+	 ld	2,16(%0)\n\
+	 mtlr	0\n\
+	 mr	3,%1\n\
+	 " : : "r" (buf), "r" (val));
+}