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Breakpad processor: Unit tests for StackwalkerX86.

Browse source 
Issue 53001 (http://breakpad.appspot.com/53001) defines the
TestAssembler classes; those, along with a new set of mock classes
defined in stackwalker_unittest_utils.h, make it possible for us to
actually do proper unit testing of a stack walker. These tests get us
full code coverage for stackwalker_x86.cc.

a=jimblandy, r=mmentovai


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@548 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
jimblandy 2010-03-16 16:25:30 +00:00
parent 9244496c6f
commit a7eb2329de
4 changed files with 1020 additions and 0 deletions
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15
Makefile.am
View file

@ -136,6 +136,7 @@ check_PROGRAMS = \
src/processor/pathname_stripper_unittest \
src/processor/postfix_evaluator_unittest \
src/processor/range_map_unittest \
src/processor/stackwalker_x86_unittest \
src/processor/synth_minidump_unittest \
src/processor/test_assembler_unittest
@ -281,6 +282,20 @@ src_processor_stackwalker_selftest_LDADD = \
src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo
src_processor_stackwalker_x86_unittest_SOURCES = \
src/processor/stackwalker_x86_unittest.cc \
src/processor/test_assembler.cc \
src/testing/gtest/src/gtest-all.cc \
src/testing/gtest/src/gtest_main.cc \
src/testing/src/gmock-all.cc
src_processor_stackwalker_x86_unittest_LDADD = \
src/libbreakpad.la
src_processor_stackwalker_x86_unittest_CPPFLAGS = \
-I$(top_srcdir)/src/testing/include \
-I$(top_srcdir)/src/testing/gtest/include \
-I$(top_srcdir)/src/testing/gtest \
-I$(top_srcdir)/src/testing
src_processor_synth_minidump_unittest_SOURCES = \
src/processor/synth_minidump_unittest.cc \
src/testing/gtest/src/gtest-all.cc \

126
Makefile.in
View file

@ -78,6 +78,7 @@ check_PROGRAMS = src/client/linux/linux_client_unittest$(EXEEXT) \
src/processor/pathname_stripper_unittest$(EXEEXT) \
src/processor/postfix_evaluator_unittest$(EXEEXT) \
src/processor/range_map_unittest$(EXEEXT) \
src/processor/stackwalker_x86_unittest$(EXEEXT) \
src/processor/synth_minidump_unittest$(EXEEXT) \
src/processor/test_assembler_unittest$(EXEEXT) $(am__EXEEXT_1)
@SELFTEST_TRUE@am__append_1 = \
@ -281,6 +282,15 @@ src_processor_stackwalker_selftest_DEPENDENCIES = \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo
am_src_processor_stackwalker_x86_unittest_OBJECTS = src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.$(OBJEXT) \
src/processor/src_processor_stackwalker_x86_unittest-test_assembler.$(OBJEXT) \
src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.$(OBJEXT) \
src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest_main.$(OBJEXT) \
src/testing/src/src_processor_stackwalker_x86_unittest-gmock-all.$(OBJEXT)
src_processor_stackwalker_x86_unittest_OBJECTS = \
$(am_src_processor_stackwalker_x86_unittest_OBJECTS)
src_processor_stackwalker_x86_unittest_DEPENDENCIES = \
src/libbreakpad.la
am_src_processor_synth_minidump_unittest_OBJECTS = src/processor/src_processor_synth_minidump_unittest-synth_minidump_unittest.$(OBJEXT) \
src/testing/gtest/src/src_processor_synth_minidump_unittest-gtest-all.$(OBJEXT) \
src/testing/gtest/src/src_processor_synth_minidump_unittest-gtest_main.$(OBJEXT) \
@ -336,6 +346,7 @@ SOURCES = $(src_client_linux_libbreakpad_client_la_SOURCES) \
$(src_processor_postfix_evaluator_unittest_SOURCES) \
$(src_processor_range_map_unittest_SOURCES) \
$(src_processor_stackwalker_selftest_SOURCES) \
$(src_processor_stackwalker_x86_unittest_SOURCES) \
$(src_processor_synth_minidump_unittest_SOURCES) \
$(src_processor_test_assembler_unittest_SOURCES)
DIST_SOURCES = $(src_client_linux_libbreakpad_client_la_SOURCES) \
@ -353,6 +364,7 @@ DIST_SOURCES = $(src_client_linux_libbreakpad_client_la_SOURCES) \
$(src_processor_postfix_evaluator_unittest_SOURCES) \
$(src_processor_range_map_unittest_SOURCES) \
$(src_processor_stackwalker_selftest_SOURCES) \
$(src_processor_stackwalker_x86_unittest_SOURCES) \
$(src_processor_synth_minidump_unittest_SOURCES) \
$(src_processor_test_assembler_unittest_SOURCES)
DATA = $(dist_doc_DATA)
@ -722,6 +734,22 @@ src_processor_stackwalker_selftest_LDADD = \
src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo
src_processor_stackwalker_x86_unittest_SOURCES = \
src/processor/stackwalker_x86_unittest.cc \
src/processor/test_assembler.cc \
src/testing/gtest/src/gtest-all.cc \
src/testing/gtest/src/gtest_main.cc \
src/testing/src/gmock-all.cc
src_processor_stackwalker_x86_unittest_LDADD = \
src/libbreakpad.la
src_processor_stackwalker_x86_unittest_CPPFLAGS = \
-I$(top_srcdir)/src/testing/include \
-I$(top_srcdir)/src/testing/gtest/include \
-I$(top_srcdir)/src/testing/gtest \
-I$(top_srcdir)/src/testing
src_processor_synth_minidump_unittest_SOURCES = \
src/processor/synth_minidump_unittest.cc \
src/testing/gtest/src/gtest-all.cc \
@ -1299,6 +1327,24 @@ src/processor/stackwalker_selftest.$(OBJEXT): \
src/processor/stackwalker_selftest$(EXEEXT): $(src_processor_stackwalker_selftest_OBJECTS) $(src_processor_stackwalker_selftest_DEPENDENCIES) src/processor/$(am__dirstamp)
@rm -f src/processor/stackwalker_selftest$(EXEEXT)
$(CXXLINK) $(src_processor_stackwalker_selftest_OBJECTS) $(src_processor_stackwalker_selftest_LDADD) $(LIBS)
src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/src_processor_stackwalker_x86_unittest-test_assembler.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.$(OBJEXT): \
src/testing/gtest/src/$(am__dirstamp) \
src/testing/gtest/src/$(DEPDIR)/$(am__dirstamp)
src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest_main.$(OBJEXT): \
src/testing/gtest/src/$(am__dirstamp) \
src/testing/gtest/src/$(DEPDIR)/$(am__dirstamp)
src/testing/src/src_processor_stackwalker_x86_unittest-gmock-all.$(OBJEXT): \
src/testing/src/$(am__dirstamp) \
src/testing/src/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_x86_unittest$(EXEEXT): $(src_processor_stackwalker_x86_unittest_OBJECTS) $(src_processor_stackwalker_x86_unittest_DEPENDENCIES) src/processor/$(am__dirstamp)
@rm -f src/processor/stackwalker_x86_unittest$(EXEEXT)
$(CXXLINK) $(src_processor_stackwalker_x86_unittest_OBJECTS) $(src_processor_stackwalker_x86_unittest_LDADD) $(LIBS)
src/processor/src_processor_synth_minidump_unittest-synth_minidump_unittest.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
@ -1397,6 +1443,8 @@ mostlyclean-compile:
-rm -f src/processor/src_processor_minidump_unittest-minidump_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_minidump_unittest-synth_minidump.$(OBJEXT)
-rm -f src/processor/src_processor_minidump_unittest-test_assembler.$(OBJEXT)
-rm -f src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_stackwalker_x86_unittest-test_assembler.$(OBJEXT)
-rm -f src/processor/src_processor_synth_minidump_unittest-synth_minidump.$(OBJEXT)
-rm -f src/processor/src_processor_synth_minidump_unittest-synth_minidump_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_synth_minidump_unittest-test_assembler.$(OBJEXT)
@ -1420,6 +1468,8 @@ mostlyclean-compile:
-rm -f src/testing/gtest/src/src_processor_minidump_processor_unittest-gtest-all.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_minidump_unittest-gtest-all.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_minidump_unittest-gtest_main.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest_main.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_synth_minidump_unittest-gtest-all.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_synth_minidump_unittest-gtest_main.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_test_assembler_unittest-gtest-all.$(OBJEXT)
@ -1427,6 +1477,7 @@ mostlyclean-compile:
-rm -f src/testing/src/src_client_linux_linux_client_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_minidump_processor_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_minidump_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_stackwalker_x86_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_synth_minidump_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_test_assembler_unittest-gmock-all.$(OBJEXT)
@ -1470,6 +1521,8 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_minidump_unittest-minidump_unittest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_minidump_unittest-synth_minidump.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_minidump_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_synth_minidump_unittest-synth_minidump.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_synth_minidump_unittest-synth_minidump_unittest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_synth_minidump_unittest-test_assembler.Po@am__quote@
@ -1487,6 +1540,8 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_minidump_processor_unittest-gtest-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_minidump_unittest-gtest-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_minidump_unittest-gtest_main.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_stackwalker_x86_unittest-gtest-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_stackwalker_x86_unittest-gtest_main.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_synth_minidump_unittest-gtest-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_synth_minidump_unittest-gtest_main.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/gtest/src/$(DEPDIR)/src_processor_test_assembler_unittest-gtest-all.Po@am__quote@
@ -1494,6 +1549,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/src/$(DEPDIR)/src_client_linux_linux_client_unittest-gmock-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/src/$(DEPDIR)/src_processor_minidump_processor_unittest-gmock-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/src/$(DEPDIR)/src_processor_minidump_unittest-gmock-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/src/$(DEPDIR)/src_processor_stackwalker_x86_unittest-gmock-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/src/$(DEPDIR)/src_processor_synth_minidump_unittest-gmock-all.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/testing/src/$(DEPDIR)/src_processor_test_assembler_unittest-gmock-all.Po@am__quote@
@ -1797,6 +1853,76 @@ src/testing/src/src_processor_minidump_unittest-gmock-all.obj: src/testing/src/g
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCXX_FALSE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_minidump_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o src/testing/src/src_processor_minidump_unittest-gmock-all.obj `if test -f 'src/testing/src/gmock-all.cc'; then $(CYGPATH_W) 'src/testing/src/gmock-all.cc'; else $(CYGPATH_W) '$(srcdir)/src/testing/src/gmock-all.cc'; fi`
src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.o: src/processor/stackwalker_x86_unittest.cc
@am__fastdepCXX_TRUE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.o -MD -MP -MF src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Tpo -c -o src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.o `test -f 'src/processor/stackwalker_x86_unittest.cc' || echo '$(srcdir)/'`src/processor/stackwalker_x86_unittest.cc
@am__fastdepCXX_TRUE@ $(am__mv) src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Tpo src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Po
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='src/processor/stackwalker_x86_unittest.cc' object='src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.o' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCXX_FALSE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.o `test -f 'src/processor/stackwalker_x86_unittest.cc' || echo '$(srcdir)/'`src/processor/stackwalker_x86_unittest.cc
src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.obj: src/processor/stackwalker_x86_unittest.cc
@am__fastdepCXX_TRUE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.obj -MD -MP -MF src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Tpo -c -o src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.obj `if test -f 'src/processor/stackwalker_x86_unittest.cc'; then $(CYGPATH_W) 'src/processor/stackwalker_x86_unittest.cc'; else $(CYGPATH_W) '$(srcdir)/src/processor/stackwalker_x86_unittest.cc'; fi`
@am__fastdepCXX_TRUE@ $(am__mv) src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Tpo src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.Po
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='src/processor/stackwalker_x86_unittest.cc' object='src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.obj' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCXX_FALSE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.obj `if test -f 'src/processor/stackwalker_x86_unittest.cc'; then $(CYGPATH_W) 'src/processor/stackwalker_x86_unittest.cc'; else $(CYGPATH_W) '$(srcdir)/src/processor/stackwalker_x86_unittest.cc'; fi`
src/processor/src_processor_stackwalker_x86_unittest-test_assembler.o: src/processor/test_assembler.cc
@am__fastdepCXX_TRUE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT src/processor/src_processor_stackwalker_x86_unittest-test_assembler.o -MD -MP -MF src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Tpo -c -o src/processor/src_processor_stackwalker_x86_unittest-test_assembler.o `test -f 'src/processor/test_assembler.cc' || echo '$(srcdir)/'`src/processor/test_assembler.cc
@am__fastdepCXX_TRUE@ $(am__mv) src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Tpo src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Po
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='src/processor/test_assembler.cc' object='src/processor/src_processor_stackwalker_x86_unittest-test_assembler.o' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCXX_FALSE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o src/processor/src_processor_stackwalker_x86_unittest-test_assembler.o `test -f 'src/processor/test_assembler.cc' || echo '$(srcdir)/'`src/processor/test_assembler.cc
src/processor/src_processor_stackwalker_x86_unittest-test_assembler.obj: src/processor/test_assembler.cc
@am__fastdepCXX_TRUE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT src/processor/src_processor_stackwalker_x86_unittest-test_assembler.obj -MD -MP -MF src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Tpo -c -o src/processor/src_processor_stackwalker_x86_unittest-test_assembler.obj `if test -f 'src/processor/test_assembler.cc'; then $(CYGPATH_W) 'src/processor/test_assembler.cc'; else $(CYGPATH_W) '$(srcdir)/src/processor/test_assembler.cc'; fi`
@am__fastdepCXX_TRUE@ $(am__mv) src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Tpo src/processor/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Po
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='src/processor/test_assembler.cc' object='src/processor/src_processor_stackwalker_x86_unittest-test_assembler.obj' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCXX_FALSE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o src/processor/src_processor_stackwalker_x86_unittest-test_assembler.obj `if test -f 'src/processor/test_assembler.cc'; then $(CYGPATH_W) 'src/processor/test_assembler.cc'; else $(CYGPATH_W) '$(srcdir)/src/processor/test_assembler.cc'; fi`
src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.o: src/testing/gtest/src/gtest-all.cc
@am__fastdepCXX_TRUE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.o -MD -MP -MF src/testing/gtest/src/$(DEPDIR)/src_processor_stackwalker_x86_unittest-gtest-all.Tpo -c -o src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.o `test -f 'src/testing/gtest/src/gtest-all.cc' || echo '$(srcdir)/'`src/testing/gtest/src/gtest-all.cc
@am__fastdepCXX_TRUE@ $(am__mv) src/testing/gtest/src/$(DEPDIR)/src_processor_stackwalker_x86_unittest-gtest-all.Tpo src/testing/gtest/src/$(DEPDIR)/src_processor_stackwalker_x86_unittest-gtest-all.Po
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='src/testing/gtest/src/gtest-all.cc' object='src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.o' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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src/testing/gtest/src/src_processor_stackwalker_x86_unittest-gtest-all.obj: src/testing/gtest/src/gtest-all.cc
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// -*- mode: C++ -*-
// Copyright (c) 2010, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
// Mock classes for writing stackwalker tests, shared amongst architectures.
#ifndef PROCESSOR_STACKWALKER_UNITTEST_UTILS_H_
#define PROCESSOR_STACKWALKER_UNITTEST_UTILS_H_
#include <stdlib.h>
#include <string>
#include <vector>
#include "google_breakpad/common/breakpad_types.h"
#include "google_breakpad/processor/code_module.h"
#include "google_breakpad/processor/code_modules.h"
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/symbol_supplier.h"
#include "google_breakpad/processor/system_info.h"
class MockMemoryRegion: public google_breakpad::MemoryRegion {
public:
MockMemoryRegion(): base_address_(0) { }
// Set this region's address and contents. If we have placed an
// instance of this class in a test fixture class, individual tests
// can use this to provide the region's contents.
void Init(u_int64_t base_address, const std::string &contents) {
base_address_ = base_address;
contents_ = contents;
}
u_int64_t GetBase() const { return base_address_; }
u_int32_t GetSize() const { return contents_.size(); }
bool GetMemoryAtAddress(u_int64_t address, u_int8_t *value) const {
return GetMemoryLittleEndian(address, value);
}
bool GetMemoryAtAddress(u_int64_t address, u_int16_t *value) const {
return GetMemoryLittleEndian(address, value);
}
bool GetMemoryAtAddress(u_int64_t address, u_int32_t *value) const {
return GetMemoryLittleEndian(address, value);
}
bool GetMemoryAtAddress(u_int64_t address, u_int64_t *value) const {
return GetMemoryLittleEndian(address, value);
}
private:
// Fetch a little-endian value from ADDRESS in contents_ whose size
// is BYTES, and store it in *VALUE. Return true on success.
template<typename ValueType>
bool GetMemoryLittleEndian(u_int64_t address, ValueType *value) const {
if (address < base_address_ ||
address - base_address_ + sizeof(ValueType) > contents_.size())
return false;
ValueType v = 0;
int start = address - base_address_;
// The loop condition is odd, but it's correct for size_t.
for (size_t i = sizeof(ValueType) - 1; i < sizeof(ValueType); i--)
v = (v << 8) | static_cast<unsigned char>(contents_[start + i]);
*value = v;
return true;
}
u_int64_t base_address_;
std::string contents_;
};
class MockCodeModule: public google_breakpad::CodeModule {
public:
MockCodeModule(u_int64_t base_address, u_int64_t size,
const std::string &code_file, const std::string &version)
: base_address_(base_address), size_(size), code_file_(code_file) { }
u_int64_t base_address() const { return base_address_; }
u_int64_t size() const { return size_; }
std::string code_file() const { return code_file_; }
std::string code_identifier() const { return code_file_; }
std::string debug_file() const { return code_file_; }
std::string debug_identifier() const { return code_file_; }
std::string version() const { return version_; }
const google_breakpad::CodeModule *Copy() const {
abort(); // Tests won't use this.
}
private:
u_int64_t base_address_;
u_int64_t size_;
std::string code_file_;
std::string version_;
};
class MockCodeModules: public google_breakpad::CodeModules {
public:
typedef google_breakpad::CodeModule CodeModule;
typedef google_breakpad::CodeModules CodeModules;
void Add(const MockCodeModule *module) {
modules_.push_back(module);
}
unsigned int module_count() const { return modules_.size(); }
const CodeModule *GetModuleForAddress(u_int64_t address) const {
for (ModuleVector::const_iterator i = modules_.begin();
i != modules_.end(); i++) {
const MockCodeModule *module = *i;
if (module->base_address() <= address &&
address - module->base_address() < module->size())
return module;
}
return NULL;
};
const CodeModule *GetMainModule() const { return modules_[0]; }
const CodeModule *GetModuleAtSequence(unsigned int sequence) const {
return modules_.at(sequence);
}
const CodeModule *GetModuleAtIndex(unsigned int index) const {
return modules_.at(index);
}
const CodeModules *Copy() const { abort(); } // Tests won't use this.
private:
typedef std::vector<const MockCodeModule *> ModuleVector;
ModuleVector modules_;
};
class MockSymbolSupplier: public google_breakpad::SymbolSupplier {
public:
typedef google_breakpad::CodeModule CodeModule;
typedef google_breakpad::SystemInfo SystemInfo;
MOCK_METHOD3(GetSymbolFile, SymbolResult(const CodeModule *module,
const SystemInfo *system_info,
std::string *symbol_file));
MOCK_METHOD4(GetSymbolFile, SymbolResult(const CodeModule *module,
const SystemInfo *system_info,
std::string *symbol_file,
std::string *symbol_data));
};
#endif // PROCESSOR_STACKWALKER_UNITTEST_UTILS_H_

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// Copyright (c) 2010, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
// stackwalker_x86_unittest.cc: Unit tests for StackwalkerX86 class.
#include <string>
#include <vector>
#include "breakpad_googletest_includes.h"
#include "google_breakpad/common/minidump_format.h"
#include "google_breakpad/processor/basic_source_line_resolver.h"
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/source_line_resolver_interface.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/stackwalker_unittest_utils.h"
#include "processor/stackwalker_x86.h"
#include "processor/test_assembler.h"
#include "processor/windows_frame_info.h"
using google_breakpad::BasicSourceLineResolver;
using google_breakpad::CallStack;
using google_breakpad::StackFrame;
using google_breakpad::StackFrameX86;
using google_breakpad::StackwalkerX86;
using google_breakpad::SystemInfo;
using google_breakpad::WindowsFrameInfo;
using google_breakpad::TestAssembler::kLittleEndian;
using google_breakpad::TestAssembler::Label;
using google_breakpad::TestAssembler::Section;
using std::string;
using std::vector;
using testing::_;
using testing::Return;
using testing::SetArgumentPointee;
using testing::Test;
class StackwalkerX86Fixture {
public:
StackwalkerX86Fixture()
: stack_section(kLittleEndian),
// Give the two modules reasonable standard locations and names
// for tests to play with.
module1(0x40000000, 0x10000, "module1", "version1"),
module2(0x50000000, 0x10000, "module2", "version2") {
// Identify the system as a Linux system.
system_info.os = "Linux";
system_info.os_short = "linux";
system_info.os_version = "Salacious Skink";
system_info.cpu = "x86";
system_info.cpu_info = "";
// Put distinctive values in the raw CPU context.
BrandContext(&raw_context);
// Create some modules with some stock debugging information.
modules.Add(&module1);
modules.Add(&module2);
// By default, none of the modules have symbol info; call
// SetModuleSymbols to override this.
EXPECT_CALL(supplier, GetSymbolFile(_, _, _, _))
.WillRepeatedly(Return(MockSymbolSupplier::NOT_FOUND));
}
// Set the Breakpad symbol information that supplier should return for
// MODULE to INFO.
void SetModuleSymbols(MockCodeModule *module, const string &info) {
EXPECT_CALL(supplier, GetSymbolFile(module, &system_info, _, _))
.WillRepeatedly(DoAll(SetArgumentPointee<3>(info),
Return(MockSymbolSupplier::FOUND)));
}
// Populate stack_region with the contents of stack_section. Use
// stack_section.start() as the region's starting address.
void RegionFromSection() {
string contents;
ASSERT_TRUE(stack_section.GetContents(&contents));
stack_region.Init(stack_section.start().Value(), contents);
}
// Fill RAW_CONTEXT with pseudo-random data, for round-trip checking.
void BrandContext(MDRawContextX86 *raw_context) {
u_int8_t x = 173;
for (size_t i = 0; i < sizeof(*raw_context); i++)
reinterpret_cast<u_int8_t *>(raw_context)[i] = (x += 17);
}
SystemInfo system_info;
MDRawContextX86 raw_context;
Section stack_section;
MockMemoryRegion stack_region;
MockCodeModule module1;
MockCodeModule module2;
MockCodeModules modules;
MockSymbolSupplier supplier;
BasicSourceLineResolver resolver;
CallStack call_stack;
const vector<StackFrame *> *frames;
};
class GetContextFrame: public StackwalkerX86Fixture, public Test { };
TEST_F(GetContextFrame, Simple) {
stack_section.start() = 0x80000000;
stack_section.D32(0).D32(0); // end-of-stack marker
RegionFromSection();
raw_context.eip = 0x40000200;
raw_context.ebp = 0x80000000;
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
StackFrameX86 *frame = static_cast<StackFrameX86 *>(frames->at(0));
// Check that the values from the original raw context made it
// through to the context in the stack frame.
EXPECT_TRUE(memcmp(&raw_context, &frame->context, sizeof(raw_context)) == 0);
}
class GetCallerFrame: public StackwalkerX86Fixture, public Test { };
// Walk a traditional frame. A traditional frame saves the caller's
// %ebp just below the return address, and has its own %ebp pointing
// at the saved %ebp.
TEST_F(GetCallerFrame, Traditional) {
stack_section.start() = 0x80000000;
Label frame0_ebp, frame1_ebp;
stack_section
.Append(12, 0) // frame 0: space
.Mark(&frame0_ebp) // frame 0 %ebp points here
.D32(frame1_ebp) // frame 0: saved %ebp
.D32(0x40008679) // frame 0: return address
.Append(8, 0) // frame 1: space
.Mark(&frame1_ebp) // frame 1 %ebp points here
.D32(0) // frame 1: saved %ebp (stack end)
.D32(0); // frame 1: return address (stack end)
RegionFromSection();
raw_context.eip = 0x4000c7a5;
raw_context.esp = stack_section.start().Value();
raw_context.ebp = frame0_ebp.Value();
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
EXPECT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x4000c7a5U, frame0->instruction);
EXPECT_EQ(0x4000c7a5U, frame0->context.eip);
EXPECT_EQ(frame0_ebp.Value(), frame0->context.ebp);
EXPECT_EQ(NULL, frame0->windows_frame_info);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_FP, frame1->trust);
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x40008679U, frame1->instruction + 1);
EXPECT_EQ(0x40008679U, frame1->context.eip);
EXPECT_EQ(frame1_ebp.Value(), frame1->context.ebp);
EXPECT_EQ(NULL, frame1->windows_frame_info);
}
// Walk a traditional frame, but use a bogus %ebp value, forcing a scan
// of the stack for something that looks like a return address.
TEST_F(GetCallerFrame, TraditionalScan) {
stack_section.start() = 0x80000000;
Label frame1_ebp;
stack_section
// frame 0
.D32(0xf065dc76) // locals area:
.D32(0x46ee2167) // garbage that doesn't look like
.D32(0xbab023ec) // a return address
.D32(frame1_ebp) // saved %ebp (%ebp fails to point here, forcing scan)
.D32(0x4000129d) // return address
// frame 1
.Append(8, 0) // space
.Mark(&frame1_ebp) // %ebp points here
.D32(0) // saved %ebp (stack end)
.D32(0); // return address (stack end)
RegionFromSection();
raw_context.eip = 0x4000f49d;
raw_context.esp = stack_section.start().Value();
// Make the frame pointer bogus, to make the stackwalker scan the stack
// for something that looks like a return address.
raw_context.ebp = 0xd43eed6e;
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x4000f49dU, frame0->instruction);
EXPECT_EQ(0x4000f49dU, frame0->context.eip);
EXPECT_EQ(stack_section.start().Value(), frame0->context.esp);
EXPECT_EQ(0xd43eed6eU, frame0->context.ebp);
EXPECT_EQ(NULL, frame0->windows_frame_info);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_SCAN, frame1->trust);
// I'd argue that CONTEXT_VALID_EBP shouldn't be here, since the
// walker does not actually fetch the EBP after a scan (forcing the
// next frame to be scanned as well). But we'll grandfather the existing
// behavior in for now.
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x4000129dU, frame1->instruction + 1);
EXPECT_EQ(0x4000129dU, frame1->context.eip);
EXPECT_EQ(0x80000014U, frame1->context.esp);
EXPECT_EQ(0xd43eed6eU, frame1->context.ebp);
EXPECT_EQ(NULL, frame1->windows_frame_info);
}
// Use Windows frame data (a "STACK WIN 4" record, from a
// FrameTypeFrameData DIA record) to walk a stack frame.
TEST_F(GetCallerFrame, WindowsFrameData) {
SetModuleSymbols(&module1,
"STACK WIN 4 aa85 176 0 0 4 10 4 0 1"
" $T2 $esp .cbSavedRegs + ="
" $T0 .raSearchStart ="
" $eip $T0 ^ ="
" $esp $T0 4 + ="
" $ebx $T2 4 - ^ ="
" $edi $T2 8 - ^ ="
" $esi $T2 12 - ^ ="
" $ebp $T2 16 - ^ =\n");
Label frame1_esp, frame1_ebp;
stack_section.start() = 0x80000000;
stack_section
// frame 0
.D32(frame1_ebp) // saved regs: %ebp
.D32(0xa7120d1a) // %esi
.D32(0x630891be) // %edi
.D32(0x9068a878) // %ebx
.D32(0xa08ea45f) // locals: unused
.D32(0x40001350) // return address
// frame 1
.Mark(&frame1_esp)
.Append(12, 0) // empty space
.Mark(&frame1_ebp)
.D32(0) // saved %ebp (stack end)
.D32(0); // saved %eip (stack end)
RegionFromSection();
raw_context.eip = 0x4000aa85;
raw_context.esp = stack_section.start().Value();
raw_context.ebp = 0xf052c1de; // should not be needed to walk frame
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x4000aa85U, frame0->instruction);
EXPECT_EQ(0x4000aa85U, frame0->context.eip);
EXPECT_EQ(stack_section.start().Value(), frame0->context.esp);
EXPECT_EQ(0xf052c1deU, frame0->context.ebp);
EXPECT_TRUE(frame0->windows_frame_info != NULL);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CFI, frame1->trust);
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP
| StackFrameX86::CONTEXT_VALID_EBX
| StackFrameX86::CONTEXT_VALID_ESI
| StackFrameX86::CONTEXT_VALID_EDI),
frame1->context_validity);
EXPECT_EQ(0x40001350U, frame1->instruction + 1);
EXPECT_EQ(0x40001350U, frame1->context.eip);
EXPECT_EQ(frame1_esp.Value(), frame1->context.esp);
EXPECT_EQ(frame1_ebp.Value(), frame1->context.ebp);
EXPECT_EQ(0x9068a878U, frame1->context.ebx);
EXPECT_EQ(0xa7120d1aU, frame1->context.esi);
EXPECT_EQ(0x630891beU, frame1->context.edi);
EXPECT_EQ(NULL, frame1->windows_frame_info);
}
// Use Windows frame data (a "STACK WIN 4" record, from a
// FrameTypeFrameData DIA record) to walk a frame, and depend on the
// parameter size from the callee as well.
TEST_F(GetCallerFrame, WindowsFrameDataParameterSize) {
SetModuleSymbols(&module1, "FUNC 1000 100 c module1::wheedle\n");
SetModuleSymbols(&module2,
// Note bogus parameter size in FUNC record; we should
// prefer the STACK WIN record, and see '4' below.
"FUNC aa85 176 beef module2::whine\n"
"STACK WIN 4 aa85 176 0 0 4 10 4 0 1"
" $T2 $esp .cbLocals + .cbSavedRegs + ="
" $T0 .raSearchStart ="
" $eip $T0 ^ ="
" $esp $T0 4 + ="
" $ebp $T0 20 - ^ ="
" $ebx $T0 8 - ^ =\n");
Label frame0_esp, frame0_ebp;
Label frame1_esp;
Label frame2_esp, frame2_ebp;
stack_section.start() = 0x80000000;
stack_section
// frame 0, in module1::wheedle. Traditional frame.
.Mark(&frame0_esp)
.Append(16, 0) // frame space
.Mark(&frame0_ebp)
.D32(0x6fa902e0) // saved %ebp. Not a frame pointer.
.D32(0x5000aa95) // return address, in module2::whine
// frame 1, in module2::whine. FrameData frame.
.Mark(&frame1_esp)
.D32(0xbaa0cb7a) // argument 3 passed to module1::wheedle
.D32(0xbdc92f9f) // argument 2
.D32(0x0b1d8442) // argument 1
.D32(frame2_ebp) // saved %ebp
.D32(0xb1b90a15) // unused
.D32(0xf18e072d) // unused
.D32(0x2558c7f3) // saved %ebx
.D32(0x0365e25e) // unused
.D32(0x2a179e38) // return address; $T0 points here
// frame 2, in no module
.Mark(&frame2_esp)
.Append(12, 0) // empty space
.Mark(&frame2_ebp)
.D32(0) // saved %ebp (stack end)
.D32(0); // saved %eip (stack end)
RegionFromSection();
raw_context.eip = 0x40001004; // in module1::wheedle
raw_context.esp = stack_section.start().Value();
raw_context.ebp = frame0_ebp.Value();
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(3U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x40001004U, frame0->instruction);
EXPECT_EQ(0x40001004U, frame0->context.eip);
EXPECT_EQ(frame0_esp.Value(), frame0->context.esp);
EXPECT_EQ(frame0_ebp.Value(), frame0->context.ebp);
EXPECT_EQ(&module1, frame0->module);
EXPECT_EQ("module1::wheedle", frame0->function_name);
EXPECT_EQ(0x40001000U, frame0->function_base);
// The FUNC record for module1::wheedle should have produced a
// WindowsFrameInfo structure with only the parameter size valid.
ASSERT_TRUE(frame0->windows_frame_info != NULL);
EXPECT_EQ(WindowsFrameInfo::VALID_PARAMETER_SIZE,
frame0->windows_frame_info->valid);
EXPECT_EQ(12U, frame0->windows_frame_info->parameter_size);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_FP, frame1->trust);
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x5000aa95U, frame1->instruction + 1);
EXPECT_EQ(0x5000aa95U, frame1->context.eip);
EXPECT_EQ(frame1_esp.Value(), frame1->context.esp);
EXPECT_EQ(0x6fa902e0U, frame1->context.ebp);
EXPECT_EQ(&module2, frame1->module);
EXPECT_EQ("module2::whine", frame1->function_name);
EXPECT_EQ(0x5000aa85U, frame1->function_base);
ASSERT_TRUE(frame1->windows_frame_info != NULL);
EXPECT_EQ(WindowsFrameInfo::VALID_ALL, frame1->windows_frame_info->valid);
// This should not see the 0xbeef parameter size from the FUNC
// record, but should instead see the STACK WIN record.
EXPECT_EQ(4U, frame1->windows_frame_info->parameter_size);
StackFrameX86 *frame2 = static_cast<StackFrameX86 *>(frames->at(2));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CFI, frame2->trust);
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP
| StackFrameX86::CONTEXT_VALID_EBX),
frame2->context_validity);
EXPECT_EQ(0x2a179e38U, frame2->instruction + 1);
EXPECT_EQ(0x2a179e38U, frame2->context.eip);
EXPECT_EQ(frame2_esp.Value(), frame2->context.esp);
EXPECT_EQ(frame2_ebp.Value(), frame2->context.ebp);
EXPECT_EQ(0x2558c7f3U, frame2->context.ebx);
EXPECT_EQ(NULL, frame2->module);
EXPECT_EQ(NULL, frame2->windows_frame_info);
}
// Use Windows frame data (a "STACK WIN 4" record, from a
// FrameTypeFrameData DIA record) to walk a stack frame, where the
// expression fails to yield both an $eip and an $ebp value, and we
// must scan.
TEST_F(GetCallerFrame, WindowsFrameDataScan) {
SetModuleSymbols(&module1,
"STACK WIN 4 c8c 111 0 0 4 10 4 0 1 bad program string\n");
// Mark frame 1's PC as the end of the stack.
SetModuleSymbols(&module2,
"FUNC 7c38 accf 0 module2::function\n"
"STACK WIN 4 7c38 accf 0 0 4 10 4 0 1 $eip 0 = $ebp 0 =\n");
Label frame1_esp;
stack_section.start() = 0x80000000;
stack_section
// frame 0
.Append(16, 0x2a) // unused, garbage
.D32(0x50007ce9) // return address
// frame 1
.Mark(&frame1_esp)
.Append(8, 0); // empty space
RegionFromSection();
raw_context.eip = 0x40000c9c;
raw_context.esp = stack_section.start().Value();
raw_context.ebp = 0x2ae314cd; // should not be needed to walk frame
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x40000c9cU, frame0->instruction);
EXPECT_EQ(0x40000c9cU, frame0->context.eip);
EXPECT_EQ(stack_section.start().Value(), frame0->context.esp);
EXPECT_EQ(0x2ae314cdU, frame0->context.ebp);
EXPECT_TRUE(frame0->windows_frame_info != NULL);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_SCAN, frame1->trust);
// I'd argue that CONTEXT_VALID_EBP shouldn't be here, since the
// walker does not actually fetch the EBP after a scan (forcing the
// next frame to be scanned as well). But we'll grandfather the existing
// behavior in for now.
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x50007ce9U, frame1->instruction + 1);
EXPECT_EQ(0x50007ce9U, frame1->context.eip);
EXPECT_EQ(frame1_esp.Value(), frame1->context.esp);
EXPECT_TRUE(frame1->windows_frame_info != NULL);
}
// Use Windows frame data (a "STACK WIN 4" record, from a
// FrameTypeFrameData DIA record) to walk a stack frame, where the
// expression yields an $eip that falls outside of any module, and we
// must scan.
TEST_F(GetCallerFrame, WindowsFrameDataBadEIPScan) {
SetModuleSymbols(&module1,
"STACK WIN 4 6e6 e7 0 0 0 8 4 0 1"
// A traditional frame, actually.
" $eip $ebp 4 + ^ = $esp $ebp 8 + = $ebp $ebp ^ =\n");
// Mark frame 1's PC as the end of the stack.
SetModuleSymbols(&module2,
"FUNC cfdb 8406 0 module2::function\n"
"STACK WIN 4 cfdb 8406 0 0 0 0 0 0 1 $eip 0 = $ebp 0 =\n");
stack_section.start() = 0x80000000;
// In this stack, the context's %ebp is pointing at the wrong place, so
// we need to scan to find the return address, and then scan again to find
// the caller's saved %ebp.
Label frame0_ebp, frame1_ebp, frame1_esp;
stack_section
// frame 0
.Append(8, 0x2a) // garbage
.Mark(&frame0_ebp) // frame 0 %ebp points here, but should point
// at *** below
// The STACK WIN record says that the following two values are
// frame 1's saved %ebp and return address, but the %ebp is wrong;
// they're garbage. We will scan for the right values.
.D32(0x3d937b2b) // alleged to be frame 1's saved %ebp
.D32(0x17847f5b) // alleged to be frame 1's return address
.D32(frame1_ebp) // frame 1's real saved %ebp; scan will find
.D32(0x2b2b2b2b) // first word of realigned register save area
// *** frame 0 %ebp ought to be pointing here
.D32(0x2c2c2c2c) // realigned locals area
.D32(0x5000d000) // frame 1's real saved %eip; scan will find
// Frame 1, in module2::function. The STACK WIN record describes
// this as the oldest frame, without referring to its contents, so
// we don't need to
.Mark(&frame1_esp)
.Mark(&frame1_ebp) // frame 1 %ebp points here
// A dummy value for frame 1's %ebp to point at. The scan recognizes the
// saved %ebp because it points to a valid word in the stack memory region.
.D32(0x2d2d2d2d);
RegionFromSection();
raw_context.eip = 0x40000700;
raw_context.esp = stack_section.start().Value();
raw_context.ebp = frame0_ebp.Value();
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x40000700U, frame0->instruction);
EXPECT_EQ(0x40000700U, frame0->context.eip);
EXPECT_EQ(stack_section.start().Value(), frame0->context.esp);
EXPECT_EQ(frame0_ebp.Value(), frame0->context.ebp);
EXPECT_TRUE(frame0->windows_frame_info != NULL);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CFI_SCAN, frame1->trust);
// I'd argue that CONTEXT_VALID_EBP shouldn't be here, since the
// walker does not actually fetch the EBP after a scan (forcing the
// next frame to be scanned as well). But we'll grandfather the existing
// behavior in for now.
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x5000d000U, frame1->instruction + 1);
EXPECT_EQ(0x5000d000U, frame1->context.eip);
EXPECT_EQ(frame1_esp.Value(), frame1->context.esp);
EXPECT_EQ(frame1_ebp.Value(), frame1->context.ebp);
EXPECT_TRUE(frame1->windows_frame_info != NULL);
}
// Use Windows FrameTypeFPO data to walk a stack frame for a function that
// does not modify %ebp from the value it had in the caller.
TEST_F(GetCallerFrame, WindowsFPOUnchangedEBP) {
SetModuleSymbols(&module1,
// Note bogus parameter size in FUNC record; we should
// prefer the STACK WIN record, and see '8' below.
"FUNC e8a8 100 feeb module1::discombobulated\n"
"STACK WIN 0 e8a8 100 0 0 8 4 10 0 0 0\n");
Label frame0_esp;
Label frame1_esp, frame1_ebp;
stack_section.start() = 0x80000000;
stack_section
// frame 0, in module1::wheedle. FrameTypeFPO (STACK WIN 0) frame.
.Mark(&frame0_esp)
// no outgoing parameters; this is the youngest frame.
.D32(0x7c521352) // four bytes of saved registers
.Append(0x10, 0x42) // local area
.D32(0x40009b5b) // return address, in module1, no function
// frame 1, in module1, no function.
.Mark(&frame1_esp)
.D32(0xf60ea7fc) // junk
.Mark(&frame1_ebp)
.D32(0) // saved %ebp (stack end)
.D32(0); // saved %eip (stack end)
RegionFromSection();
raw_context.eip = 0x4000e8b8; // in module1::whine
raw_context.esp = stack_section.start().Value();
// Frame pointer unchanged from caller.
raw_context.ebp = frame1_ebp.Value();
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x4000e8b8U, frame0->instruction);
EXPECT_EQ(0x4000e8b8U, frame0->context.eip);
EXPECT_EQ(frame0_esp.Value(), frame0->context.esp);
EXPECT_EQ(frame1_ebp.Value(), frame0->context.ebp); // unchanged from caller
EXPECT_EQ(&module1, frame0->module);
EXPECT_EQ("module1::discombobulated", frame0->function_name);
EXPECT_EQ(0x4000e8a8U, frame0->function_base);
// The STACK WIN record for module1::discombobulated should have
// produced a fully populated WindowsFrameInfo structure.
ASSERT_TRUE(frame0->windows_frame_info != NULL);
EXPECT_EQ(WindowsFrameInfo::VALID_ALL, frame0->windows_frame_info->valid);
EXPECT_EQ(0x10U, frame0->windows_frame_info->local_size);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CFI, frame1->trust);
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x40009b5bU, frame1->instruction + 1);
EXPECT_EQ(0x40009b5bU, frame1->context.eip);
EXPECT_EQ(frame1_esp.Value(), frame1->context.esp);
EXPECT_EQ(frame1_ebp.Value(), frame1->context.ebp);
EXPECT_EQ(&module1, frame1->module);
EXPECT_EQ("", frame1->function_name);
EXPECT_EQ(NULL, frame1->windows_frame_info);
}
// Use Windows FrameTypeFPO data to walk a stack frame for a function
// that uses %ebp for its own purposes, saving the value it had in the
// caller in the standard place in the saved register area.
TEST_F(GetCallerFrame, WindowsFPOUsedEBP) {
SetModuleSymbols(&module1,
// Note bogus parameter size in FUNC record; we should
// prefer the STACK WIN record, and see '8' below.
"FUNC 9aa8 e6 abbe module1::RaisedByTheAliens\n"
"STACK WIN 0 9aa8 e6 a 0 10 8 4 0 0 1\n");
Label frame0_esp;
Label frame1_esp, frame1_ebp;
stack_section.start() = 0x80000000;
stack_section
// frame 0, in module1::wheedle. FrameTypeFPO (STACK WIN 0) frame.
.Mark(&frame0_esp)
// no outgoing parameters; this is the youngest frame.
.D32(frame1_ebp) // saved register area: saved %ebp
.D32(0xb68bd5f9) // saved register area: something else
.D32(0xd25d05fc) // local area
.D32(0x4000debe) // return address, in module1, no function
// frame 1, in module1, no function.
.Mark(&frame1_esp)
.D32(0xf0c9a974) // junk
.Mark(&frame1_ebp)
.D32(0) // saved %ebp (stack end)
.D32(0); // saved %eip (stack end)
RegionFromSection();
raw_context.eip = 0x40009ab8; // in module1::RaisedByTheAliens
raw_context.esp = stack_section.start().Value();
// RaisedByTheAliens uses %ebp for its own mysterious purposes.
raw_context.ebp = 0xecbdd1a5;
StackwalkerX86 walker(&system_info, &raw_context, &stack_region, &modules,
&supplier, &resolver);
ASSERT_TRUE(walker.Walk(&call_stack));
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameX86 *frame0 = static_cast<StackFrameX86 *>(frames->at(0));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameX86::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0x40009ab8U, frame0->instruction);
EXPECT_EQ(0x40009ab8U, frame0->context.eip);
EXPECT_EQ(frame0_esp.Value(), frame0->context.esp);
EXPECT_EQ(0xecbdd1a5, frame0->context.ebp);
EXPECT_EQ(&module1, frame0->module);
EXPECT_EQ("module1::RaisedByTheAliens", frame0->function_name);
EXPECT_EQ(0x40009aa8U, frame0->function_base);
// The STACK WIN record for module1::RaisedByTheAliens should have
// produced a fully populated WindowsFrameInfo structure.
ASSERT_TRUE(frame0->windows_frame_info != NULL);
EXPECT_EQ(WindowsFrameInfo::VALID_ALL, frame0->windows_frame_info->valid);
EXPECT_EQ("", frame0->windows_frame_info->program_string);
EXPECT_TRUE(frame0->windows_frame_info->allocates_base_pointer);
StackFrameX86 *frame1 = static_cast<StackFrameX86 *>(frames->at(1));
EXPECT_EQ(StackFrameX86::FRAME_TRUST_CFI, frame1->trust);
ASSERT_EQ((StackFrameX86::CONTEXT_VALID_EIP
| StackFrameX86::CONTEXT_VALID_ESP
| StackFrameX86::CONTEXT_VALID_EBP),
frame1->context_validity);
EXPECT_EQ(0x4000debeU, frame1->instruction + 1);
EXPECT_EQ(0x4000debeU, frame1->context.eip);
EXPECT_EQ(frame1_esp.Value(), frame1->context.esp);
EXPECT_EQ(frame1_ebp.Value(), frame1->context.ebp);
EXPECT_EQ(&module1, frame1->module);
EXPECT_EQ("", frame1->function_name);
EXPECT_EQ(NULL, frame1->windows_frame_info);
}