Better testing for Stackwalker (#18). r=bryner

- Test StackwalkerX86 and StackwalkerPPC on the current process, if built
   by a supported compiler (gcc) on a supported (walkable) CPU (x86, ppc).
 - This test is not enabled by default because of certain optimizations
   that interfere with it (stack frame reuse, frame pointer omission).  See
   the comments at the top of stackwalker_selftest.cc.  To enable this
   test in the standard "make check" suite, configure with --enable-selftest.

http://groups.google.com/group/airbag-dev/browse_thread/thread/2ca1c8e72c809bec


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@35 4c0a9323-5329-0410-9bdc-e9ce6186880e

Makefile.am

@@ -89,9 +89,16 @@ check_PROGRAMS = \
 	src/processor/postfix_evaluator_unittest \
 	src/processor/range_map_unittest \
 	src/processor/source_line_resolver_unittest
+
+if SELFTEST
+check_PROGRAMS += \
+	src/processor/stackwalker_selftest
+endif SELFTEST
+
 check_SCRIPTS = \
 	src/processor/minidump_dump_test \
 	src/processor/minidump_stackwalk_test
+
 TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
 TESTS_ENVIRONMENT =
 
@@ -119,6 +126,15 @@ src_processor_source_line_resolver_unittest_SOURCES = \
 src_processor_source_line_resolver_unittest_LDADD = \
 	src/processor/source_line_resolver.lo
 
+src_processor_stackwalker_selftest_SOURCES = \
+	src/processor/stackwalker_selftest.cc
+src_processor_stackwalker_selftest_LDADD = \
+	src/processor/minidump.lo \
+	src/processor/source_line_resolver.lo \
+	src/processor/stackwalker.lo \
+	src/processor/stackwalker_ppc.lo \
+	src/processor/stackwalker_x86.lo
+
 ## Non-installables
 noinst_PROGRAMS =
 noinst_SCRIPTS = $(check_SCRIPTS)