add support for scanning of build logs for common issues #111436

svn path=/main/trunk/; revision=5449

1 files changed, 53 insertions, 0 deletions

diff --git a/bin/check-implicit-pointer-usage.py b/bin/check-implicit-pointer-usage.py
new file mode 100755
index 000000000..4afa8f24b
--- /dev/null
+++ b/bin/check-implicit-pointer-usage.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+
+# Ripped from HP and updated from Debian
+
+#
+# Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
+#	David Mosberger <davidm@hpl.hp.com>
+#
+# Scan standard input for GCC warning messages that are likely to
+# source of real 64-bit problems.  In particular, see whether there
+# are any implicitly declared functions whose return values are later
+# interpreted as pointers.  Those are almost guaranteed to cause
+# crashes.
+#
+import re
+import sys
+
+implicit_pattern = re.compile("([^:]*):(\d+): warning: implicit declaration "
+                              + "of function [`']([^']*)'")
+pointer_pattern = re.compile(
+    "([^:]*):(\d+): warning: "
+    + "("
+    +  "(assignment"
+    +  "|initialization"
+    +  "|return"
+    +  "|passing arg \d+ of `[^']*'"
+    +  "|passing arg \d+ of pointer to function"
+    +  ") makes pointer from integer without a cast"
+    + "|"
+    + "cast to pointer from integer of different size)")
+last_implicit_filename = ""
+last_implicit_linenum = -1
+last_implicit_func = ""
+
+while True:
+    line = sys.stdin.readline()
+    if line == '':
+        break
+    m = implicit_pattern.match(line)
+    if m:
+        last_implicit_filename = m.group(1)
+        last_implicit_linenum = int(m.group(2))
+        last_implicit_func = m.group(3)
+    else:
+        m = pointer_pattern.match(line)
+        if m:
+            pointer_filename = m.group(1)
+            pointer_linenum = int(m.group(2))
+            if (last_implicit_filename == pointer_filename
+                and last_implicit_linenum == pointer_linenum):
+                print "Function `%s' implicitly converted to pointer at " \
+                      "%s:%d" % (last_implicit_func, last_implicit_filename,
+                                 last_implicit_linenum)