Merge commit 'origin/master' into pr4225

* commit 'origin/master': (34 commits)
  PR5049: fix overbroad effects of naive "*" prefixing; instead use optional "*/" only.
  stap-serverd was incorectly determining that the server could
  stapprobes man page: clarify statement(NUM).absolute and process("path") searching
  PR5049: prefix with "*" any filenames given in "fn@filename:line" probes
  Indentation fix.
  Redirect stderr gets redircted so warnings don't let example script run fail.
  PR6835. io/io_submit.stp: Fix #! start. Convert to normal line-ending.
  PR2895. Add proper #! /usr/bin/env stap line. Make example scripts executable.
  Use INSTALL_PROGRAM, not INSTALL_DATA for executable .stp scripts.
  example index: only warn if old, do not regenerate
  Start/stop the systemtap server from systemtap.exp and not in the top level Makefile.
  Lower statement wildcard test matching threshold.
  Moved details of utrace detach to stap_utrace_detach().
  Saves thread vma information.
  Always generate examples indexes and install examples from srcdir.
  Refer to srcdir spec file Makefile so make rpm works when builddir != srcdir.
  Add index of subsystem and keywords at top of HTML indexes.
  Don't output output, exits, status line in indexes (mentioned in descriptions).
  Disable chmodding of samples/kmalloc-top in spec file since it isn't installed.
  Make sure examples indexes are always generated in builddir.
  ...

1 files changed, 42 insertions, 0 deletions

diff --git a/testsuite/systemtap.examples/process/sig_by_pid.stp b/testsuite/systemtap.examples/process/sig_by_pid.stp
new file mode 100755
index 00000000..9c1493f5
--- /dev/null
+++ b/testsuite/systemtap.examples/process/sig_by_pid.stp
@@ -0,0 +1,42 @@
+#! /usr/bin/env stap
+
+# Copyright (C) 2006 IBM Corp.
+#
+# 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.
+
+#
+# Print signal counts by process IDs in descending order.
+#
+
+global sigcnt, pid2name, sig2name
+
+probe begin {
+	print("Collecting data... Type Ctrl-C to exit and display results\n")
+}
+
+probe signal.send 
+{
+	snd_pid = pid()
+	rcv_pid = sig_pid
+
+	sigcnt[snd_pid, rcv_pid, sig]++
+
+	if (!(snd_pid in pid2name)) pid2name[snd_pid] = execname()
+	if (!(rcv_pid in pid2name)) pid2name[rcv_pid] = pid_name
+	if (!(sig in sig2name)) sig2name[sig] = sig_name 
+}
+
+probe end
+{
+	printf("%-8s %-16s %-5s %-16s %-16s %s\n",
+	       "SPID", "SENDER", "RPID", "RECEIVER", "SIGNAME", "COUNT")
+
+	foreach ([snd_pid, rcv_pid, sig_num] in sigcnt-) {
+		printf("%-8d %-16s %-5d %-16s %-16s %d\n", 
+		       snd_pid, pid2name[snd_pid], rcv_pid, pid2name[rcv_pid],
+		       sig2name[sig_num], sigcnt[snd_pid, rcv_pid, sig_num])
+	}
+}