From 9951ad78c80e144c166a7d476cad7ffdf84332a9 Mon Sep 17 00:00:00 2001
From: Ben Longbons <b.r.longbons@gmail.com>
Date: Wed, 13 Aug 2014 14:55:49 -0700
Subject: Debug debugging

---
 tools/debug-debug-scripts | 99 +++++++++++++++++++++++++++++++++++++++++++++++
 tools/debug-debug.gdb     | 35 +++++++++++++++++
 2 files changed, 134 insertions(+)
 create mode 100755 tools/debug-debug-scripts
 create mode 100644 tools/debug-debug.gdb

(limited to 'tools')

diff --git a/tools/debug-debug-scripts b/tools/debug-debug-scripts
new file mode 100755
index 0000000..79520e9
--- /dev/null
+++ b/tools/debug-debug-scripts
@@ -0,0 +1,99 @@
+#!/usr/bin/env python
+
+from __future__ import print_function
+
+import itertools
+import os
+import subprocess
+import sys
+import tempfile
+
+error = False
+
+def eprint(s):
+    print('Error:', s, file=sys.stderr)
+
+def get_classes_from_file(a):
+    global error
+    d = {}
+    execfile(a, d)
+    for (k, v) in sorted(d.items()):
+        try:
+            name = v.name
+        except AttributeError:
+            if hasattr(v, 'enabled') and hasattr(v, 'tests'):
+                name = 'None::' + k
+            else:
+                continue
+        else:
+            if name.split('::')[-1] != k:
+                eprint('Mismatch: class %s is for %s' % (k, name))
+                error = True
+        if not v.enabled:
+            eprint('Disabled: %s' % name)
+            continue
+
+        try:
+            tests = v.tests
+        except AttributeError:
+            eprint('Unimplemented tests for %s' % name)
+            error = True
+            continue
+        extra = getattr(v, 'test_extra', '').rstrip(' ')
+        yield (k, tests, extra)
+
+def c_quote(s):
+    s = s.replace('\\', '\\\\')
+    s = s.replace('"', '\\"')
+    return '"' + s + '"'
+
+def gen_test(name, expr, expected):
+    print('static')
+    print('void %s()' % name)
+    print('{')
+    print('    auto value = %s;' % expr)
+    print('    const char *expected = %s;' % c_quote(expected))
+    print('    do_breakpoint(value, expected);')
+    print('}')
+
+def main(args):
+    print('// Generated by', __file__)
+    print('#include <cstdio>')
+    print()
+    print('template<class T>')
+    print('__attribute__((noinline))')
+    print('void do_breakpoint(const T& value, const char *expected)')
+    print('{')
+    print('    (void)value;')
+    print('    (void)expected;')
+    print('    if (!expected) printf("printer test: %p = %s\\n", &value, expected);')
+    print('}')
+
+    names = []
+    for a in args:
+        basename, ext = os.path.splitext(a)
+        assert ext == '.py'
+        print()
+        print('// Tests from', a)
+        header = basename + '.hpp'
+        print('#include "%s"' % header)
+
+        for (k, tests, extra) in get_classes_from_file(a):
+            print()
+            print('// Tests for', k)
+            print(extra)
+            for (i, (expr, expected)) in enumerate(tests):
+                name = 'testset_%s_subtest_%d' % (k, i)
+                gen_test(name, expr, expected)
+                names.append(name)
+    print('int main()')
+    print('{')
+    for n in names:
+        print('    %s();' % n)
+    print('}')
+    if error and not os.getenv('TMWA_FORCE_GENERATE'):
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    main(sys.argv[1:])
diff --git a/tools/debug-debug.gdb b/tools/debug-debug.gdb
new file mode 100644
index 0000000..0389341
--- /dev/null
+++ b/tools/debug-debug.gdb
@@ -0,0 +1,35 @@
+# vim: ft=python
+set logging file /dev/null
+set logging redirect on
+set logging off
+
+python
+import sys
+
+def hit_breakpoint():
+    sys.stdout.write('.')
+    value = str(gdb.parse_and_eval('*&value'))
+    expected = gdb.parse_and_eval('expected').string()
+    if value != expected:
+        print 'Error: mismatch, aborting ...'
+        print 'actual: %r' % value
+        print 'expect: %r' % str(expected)
+        gdb.execute('bt')
+        sys.exit(1)
+end
+
+# register a pretty-printer for 'char *' instead
+#set print address off
+set print static-members off
+set print elements unlimited
+set print frame-arguments none
+
+set logging on
+rbreak do_breakpoint
+set logging off
+commands
+silent
+python hit_breakpoint()
+continue
+end
+run
-- 
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