Rename stack-ppc64.c to stack-ppc.c

There should be no functional changes in this patch.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/runtime/stack-ppc.c b/runtime/stack-ppc.c
new file mode 100644
index 00000000..3267194e
--- /dev/null
+++ b/runtime/stack-ppc.c
@@ -0,0 +1,62 @@
+/* -*- linux-c -*-
+ * ppc64 stack tracing functions
+ *
+ * This file is part of systemtap, and is free software.  You can
+ * redistribute it and/or modify it under the terms of the GNU General
+ * Public License (GPL); either version 2, or (at your option) any
+ * later version.
+ */
+
+static void __stp_stack_print (struct pt_regs *regs, int verbose, int levels,
+                               struct task_struct *tsk)
+{
+	unsigned long ip, newsp, lr = 0;
+	int count = 0;
+	int firstframe = 1;
+	unsigned long *_sp = (unsigned long *)&REG_SP(regs);	
+	unsigned long sp = (unsigned long)_sp;
+	lr = 0;
+	do {
+		if (sp < KERNELBASE)
+			return;
+		_sp = (unsigned long *) sp;
+		newsp = _sp[0];
+		ip = _sp[2];
+		if (!firstframe || ip != lr) {
+			if (verbose) {
+				_stp_printf("[0x%016lx] [0x%016lx] ", sp, ip);
+				_stp_symbol_print(ip);
+				if (firstframe)
+					_stp_print(" (unreliable)");
+				_stp_print_char('\n');
+			}
+			else
+				_stp_printf("0x%016lx ", ip);
+		}
+		firstframe = 0;
+		/*
+		 * See if this is an exception frame.
+		 * We look for the "regshere" marker in the current frame.
+		 */
+		if ( _sp[12] == 0x7265677368657265ul) {
+			struct pt_regs *regs = (struct pt_regs *)
+				(sp + STACK_FRAME_OVERHEAD);
+			if (verbose) {
+				_stp_printf("--- Exception: %lx at ",regs->trap);
+				_stp_symbol_print(regs->nip);
+				_stp_print_char('\n');
+				lr = regs->link;
+				_stp_print("    LR =");
+				_stp_symbol_print(lr);
+				_stp_print_char('\n');
+				firstframe = 1;
+			}
+			else {
+				_stp_printf("0x%016lx ",regs->nip);
+				_stp_printf("0x%016lx ",regs->link);
+			}
+		}
+
+		sp = newsp;
+	} while (count++ < MAXBACKTRACE);
+}