date and time created 92/07/07 22:30:14 by torek

SCCS-vsn: usr.bin/gprof/sparc.c 5.1

diff --git a/usr/src/usr.bin/gprof/sparc.c b/usr/src/usr.bin/gprof/sparc.c
new file mode 100644 (file)
index 0000000..892bc59
--- /dev/null
+++ b/usr/src/usr.bin/gprof/sparc.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 1992 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * %sccs.include.redist.c%
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)sparc.c    5.1 (Berkeley) %G%";
+#endif /* not lint */
+
+#include       "gprof.h"
+
+    /*
+     * a namelist entry to be the child of indirect calls
+     */
+nltype indirectchild = {
+       "(*)" ,                         /* the name */
+       (unsigned long) 0 ,             /* the pc entry point */
+       (unsigned long) 0 ,             /* entry point aligned to histogram */
+       (double) 0.0 ,                  /* ticks in this routine */
+       (double) 0.0 ,                  /* cumulative ticks in children */
+       (long) 0 ,                      /* how many times called */
+       (long) 0 ,                      /* times called by live arcs */
+       (long) 0 ,                      /* how many calls to self */
+       (double) 1.0 ,                  /* propagation fraction */
+       (double) 0.0 ,                  /* self propagation time */
+       (double) 0.0 ,                  /* child propagation time */
+       (short) 0 ,                     /* print flag */
+       (short) 0 ,                     /* flags */
+       (int) 0 ,                       /* index in the graph list */
+       (int) 0 ,                       /* graph call chain top-sort order */
+       (int) 0 ,                       /* internal number of cycle on */
+       (int) 0 ,                       /* number of live parent arcs */
+       (struct nl *) &indirectchild ,  /* pointer to head of cycle */
+       (struct nl *) 0 ,               /* pointer to next member of cycle */
+       (arctype *) 0 ,                 /* list of caller arcs */
+       (arctype *) 0                   /* list of callee arcs */
+};
+
+findcall(parentp, p_lowpc, p_highpc)
+       nltype          *parentp;
+       unsigned long   p_lowpc;
+       unsigned long   p_highpc;
+{
+       register u_long pc;
+       nltype *childp;
+       unsigned long destpc;
+       register long op;
+       register int off;
+
+       if (textspace == 0)
+               return;
+       if (p_lowpc < s_lowpc)
+               p_lowpc = s_lowpc;
+       if (p_highpc > s_highpc)
+               p_highpc = s_highpc;
+
+       for (pc = p_lowpc; pc < p_highpc; pc += 4) {
+               off = pc - s_lowpc;
+               op = *(u_long *)&textspace[off];
+               if ((op & 0xc0000000) == 0x40000000) {
+                       /*
+                        * a pc relative call insn -- check that this
+                        * is the address of a function.
+                        */
+                       off = (op & 0x3fffffff) << 2;
+                       destpc = pc + off;
+                       if (destpc >= s_lowpc && destpc <= s_highpc) {
+                               childp = nllookup(destpc);
+                               if (childp != 0 && childp->value == destpc)
+                                       addarc(parentp, childp, 0L);
+                       }
+               } else if ((op & 0xfff80000) == 0x9fc00000)
+                       /*
+                        * A jmpl with rd = 15 (%o7) -- an indirect call.
+                        */
+                       addarc(parentp, &indirectchild, 0L);
+       }
+}