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Adding support for mips.

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Support for mips cpu is added to all breakapad targets including unittests.

BUG=none
TEST=unittests

Review URL: https://breakpad.appspot.com/614002



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1212 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
gordana.cmiljanovic@imgtec.com 2013-09-11 11:37:04 +00:00
parent ae35566b8d
commit f78839c157
31 changed files with 2095 additions and 39 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
Makefile.am
View file

@ -193,6 +193,8 @@ src_libbreakpad_a_SOURCES = \
src/processor/stackwalker_arm.h \
src/processor/stackwalker_address_list.cc \
src/processor/stackwalker_address_list.h \
src/processor/stackwalker_mips.cc \
src/processor/stackwalker_mips.h \
src/processor/stackwalker_ppc.cc \
src/processor/stackwalker_ppc.h \
src/processor/stackwalker_ppc64.cc \
@ -290,6 +292,7 @@ check_PROGRAMS += \
src/processor/stackwalker_amd64_unittest \
src/processor/stackwalker_arm_unittest \
src/processor/stackwalker_address_list_unittest \
src/processor/stackwalker_mips_unittest \
src/processor/stackwalker_x86_unittest \
src/processor/synth_minidump_unittest
endif
@ -628,6 +631,7 @@ src_processor_exploitability_unittest_LDADD = \
src/processor/stackwalker_amd64.o \
src/processor/stackwalker_arm.o \
src/processor/stackwalker_address_list.o \
src/processor/stackwalker_mips.o \
src/processor/stackwalker_ppc.o \
src/processor/stackwalker_ppc64.o \
src/processor/stackwalker_sparc.o \
@ -718,6 +722,7 @@ src_processor_minidump_processor_unittest_LDADD = \
src/processor/stackwalker_amd64.o \
src/processor/stackwalker_arm.o \
src/processor/stackwalker_address_list.o \
src/processor/stackwalker_mips.o \
src/processor/stackwalker_ppc.o \
src/processor/stackwalker_ppc64.o \
src/processor/stackwalker_sparc.o \
@ -844,6 +849,7 @@ src_processor_stackwalker_selftest_LDADD = \
src/processor/stackwalker_amd64.o \
src/processor/stackwalker_arm.o \
src/processor/stackwalker_address_list.o \
src/processor/stackwalker_mips.o \
src/processor/stackwalker_ppc.o \
src/processor/stackwalker_ppc64.o \
src/processor/stackwalker_sparc.o \
@ -899,6 +905,22 @@ src_processor_stackwalker_address_list_unittest_CPPFLAGS = \
-I$(top_srcdir)/src/testing/gtest \
-I$(top_srcdir)/src/testing
src_processor_stackwalker_mips_unittest_SOURCES = \
src/common/test_assembler.cc \
src/processor/stackwalker_mips_unittest.cc \
src/testing/gtest/src/gtest-all.cc \
src/testing/gtest/src/gtest_main.cc \
src/testing/src/gmock-all.cc
src_processor_stackwalker_mips_unittest_LDADD = \
src/libbreakpad.a \
$(PTHREAD_CFLAGS) $(PTHREAD_LIBS)
src_processor_stackwalker_mips_unittest_CPPFLAGS = \
-I$(top_srcdir)/src \
-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_stackwalker_x86_unittest_SOURCES = \
src/common/test_assembler.cc \
src/processor/stackwalker_x86_unittest.cc \
@ -982,6 +1004,7 @@ src_processor_minidump_stackwalk_LDADD = \
src/processor/stackwalker_amd64.o \
src/processor/stackwalker_arm.o \
src/processor/stackwalker_address_list.o \
src/processor/stackwalker_mips.o \
src/processor/stackwalker_ppc.o \
src/processor/stackwalker_ppc64.o \
src/processor/stackwalker_sparc.o \

158
Makefile.in
View file

@ -134,6 +134,7 @@ check_PROGRAMS = $(am__EXEEXT_4) $(am__EXEEXT_5) $(am__EXEEXT_6) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_x86_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/synth_minidump_unittest
@ -320,6 +321,8 @@ am__src_libbreakpad_a_SOURCES_DIST = \
src/processor/stackwalker_arm.h \
src/processor/stackwalker_address_list.cc \
src/processor/stackwalker_address_list.h \
src/processor/stackwalker_mips.cc \
src/processor/stackwalker_mips.h \
src/processor/stackwalker_ppc.cc \
src/processor/stackwalker_ppc.h \
src/processor/stackwalker_ppc64.cc \
@ -361,6 +364,7 @@ am__src_libbreakpad_a_SOURCES_DIST = \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.$(OBJEXT) \
@ -443,6 +447,7 @@ src_third_party_libdisasm_libdisasm_a_OBJECTS = \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64_unittest$(EXEEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm_unittest$(EXEEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list_unittest$(EXEEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips_unittest$(EXEEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_x86_unittest$(EXEEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/synth_minidump_unittest$(EXEEXT)
@LINUX_HOST_TRUE@am__EXEEXT_5 = src/client/linux/linux_client_unittest$(EXEEXT)
@ -735,6 +740,7 @@ src_processor_exploitability_unittest_OBJECTS = \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -814,6 +820,7 @@ src_processor_minidump_processor_unittest_OBJECTS = \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -848,6 +855,7 @@ src_processor_minidump_stackwalk_OBJECTS = \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -956,6 +964,23 @@ src_processor_stackwalker_arm_unittest_OBJECTS = \
@DISABLE_PROCESSOR_FALSE@ src/libbreakpad.a \
@DISABLE_PROCESSOR_FALSE@ $(am__DEPENDENCIES_1) \
@DISABLE_PROCESSOR_FALSE@ $(am__DEPENDENCIES_1)
am__src_processor_stackwalker_mips_unittest_SOURCES_DIST = \
src/common/test_assembler.cc \
src/processor/stackwalker_mips_unittest.cc \
src/testing/gtest/src/gtest-all.cc \
src/testing/gtest/src/gtest_main.cc \
src/testing/src/gmock-all.cc
@DISABLE_PROCESSOR_FALSE@am_src_processor_stackwalker_mips_unittest_OBJECTS = src/common/src_processor_stackwalker_mips_unittest-test_assembler.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/processor/src_processor_stackwalker_mips_unittest-stackwalker_mips_unittest.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/testing/gtest/src/src_processor_stackwalker_mips_unittest-gtest-all.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/testing/gtest/src/src_processor_stackwalker_mips_unittest-gtest_main.$(OBJEXT) \
@DISABLE_PROCESSOR_FALSE@ src/testing/src/src_processor_stackwalker_mips_unittest-gmock-all.$(OBJEXT)
src_processor_stackwalker_mips_unittest_OBJECTS = \
$(am_src_processor_stackwalker_mips_unittest_OBJECTS)
@DISABLE_PROCESSOR_FALSE@src_processor_stackwalker_mips_unittest_DEPENDENCIES = \
@DISABLE_PROCESSOR_FALSE@ src/libbreakpad.a \
@DISABLE_PROCESSOR_FALSE@ $(am__DEPENDENCIES_1) \
@DISABLE_PROCESSOR_FALSE@ $(am__DEPENDENCIES_1)
am__src_processor_stackwalker_selftest_SOURCES_DIST = \
src/processor/stackwalker_selftest.cc
@DISABLE_PROCESSOR_FALSE@am_src_processor_stackwalker_selftest_OBJECTS = src/processor/stackwalker_selftest.$(OBJEXT)
@ -977,6 +1002,7 @@ src_processor_stackwalker_selftest_OBJECTS = \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -1199,6 +1225,7 @@ SOURCES = $(src_client_linux_libbreakpad_client_a_SOURCES) \
$(src_processor_stackwalker_address_list_unittest_SOURCES) \
$(src_processor_stackwalker_amd64_unittest_SOURCES) \
$(src_processor_stackwalker_arm_unittest_SOURCES) \
$(src_processor_stackwalker_mips_unittest_SOURCES) \
$(src_processor_stackwalker_selftest_SOURCES) \
$(src_processor_stackwalker_x86_unittest_SOURCES) \
$(src_processor_static_address_map_unittest_SOURCES) \
@ -1240,6 +1267,7 @@ DIST_SOURCES = \
$(am__src_processor_stackwalker_address_list_unittest_SOURCES_DIST) \
$(am__src_processor_stackwalker_amd64_unittest_SOURCES_DIST) \
$(am__src_processor_stackwalker_arm_unittest_SOURCES_DIST) \
$(am__src_processor_stackwalker_mips_unittest_SOURCES_DIST) \
$(am__src_processor_stackwalker_selftest_SOURCES_DIST) \
$(am__src_processor_stackwalker_x86_unittest_SOURCES_DIST) \
$(am__src_processor_static_address_map_unittest_SOURCES_DIST) \
@ -1492,6 +1520,8 @@ lib_LIBRARIES = $(am__append_5) $(am__append_7)
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.h \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.cc \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.h \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.cc \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.h \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.cc \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.h \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.cc \
@ -1841,6 +1871,7 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -1939,6 +1970,7 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -2079,6 +2111,7 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -2140,6 +2173,24 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src/testing/gtest \
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src/testing
@DISABLE_PROCESSOR_FALSE@src_processor_stackwalker_mips_unittest_SOURCES = \
@DISABLE_PROCESSOR_FALSE@ src/common/test_assembler.cc \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips_unittest.cc \
@DISABLE_PROCESSOR_FALSE@ src/testing/gtest/src/gtest-all.cc \
@DISABLE_PROCESSOR_FALSE@ src/testing/gtest/src/gtest_main.cc \
@DISABLE_PROCESSOR_FALSE@ src/testing/src/gmock-all.cc
@DISABLE_PROCESSOR_FALSE@src_processor_stackwalker_mips_unittest_LDADD = \
@DISABLE_PROCESSOR_FALSE@ src/libbreakpad.a \
@DISABLE_PROCESSOR_FALSE@ $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)
@DISABLE_PROCESSOR_FALSE@src_processor_stackwalker_mips_unittest_CPPFLAGS = \
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src \
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src/testing/include \
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src/testing/gtest/include \
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src/testing/gtest \
@DISABLE_PROCESSOR_FALSE@ -I$(top_srcdir)/src/testing
@DISABLE_PROCESSOR_FALSE@src_processor_stackwalker_x86_unittest_SOURCES = \
@DISABLE_PROCESSOR_FALSE@ src/common/test_assembler.cc \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_x86_unittest.cc \
@ -2226,6 +2277,7 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_amd64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_arm.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_address_list.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_mips.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_ppc64.o \
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_sparc.o \
@ -2630,6 +2682,9 @@ src/processor/stackwalker_arm.$(OBJEXT): \
src/processor/stackwalker_address_list.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_mips.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_ppc.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
@ -3240,6 +3295,27 @@ src/processor/stackwalker_arm_unittest$(EXEEXT): $(src_processor_stackwalker_arm
src/processor/stackwalker_selftest.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/common/src_processor_stackwalker_mips_unittest-test_assembler.$(OBJEXT): \
src/common/$(am__dirstamp) \
src/common/$(DEPDIR)/$(am__dirstamp)
src/processor/src_processor_stackwalker_mips_unittest-stackwalker_mips_unittest.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/testing/gtest/src/src_processor_stackwalker_mips_unittest-gtest-all.$(OBJEXT): \
src/testing/gtest/src/$(am__dirstamp) \
src/testing/gtest/src/$(DEPDIR)/$(am__dirstamp)
src/testing/gtest/src/src_processor_stackwalker_mips_unittest-gtest_main.$(OBJEXT): \
src/testing/gtest/src/$(am__dirstamp) \
src/testing/gtest/src/$(DEPDIR)/$(am__dirstamp)
src/testing/src/src_processor_stackwalker_mips_unittest-gmock-all.$(OBJEXT): \
src/testing/src/$(am__dirstamp) \
src/testing/src/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_mips_unittest$(EXEEXT): $(src_processor_stackwalker_mips_unittest_OBJECTS) $(src_processor_stackwalker_mips_unittest_DEPENDENCIES) $(EXTRA_src_processor_stackwalker_mips_unittest_DEPENDENCIES) src/processor/$(am__dirstamp)
@rm -f src/processor/stackwalker_mips_unittest$(EXEEXT)
$(CXXLINK) $(src_processor_stackwalker_mips_unittest_OBJECTS) $(src_processor_stackwalker_mips_unittest_LDADD) $(LIBS)
src/processor/stackwalker_selftest.$(OBJEXT): \
src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_selftest$(EXEEXT): $(src_processor_stackwalker_selftest_OBJECTS) $(src_processor_stackwalker_selftest_DEPENDENCIES) $(EXTRA_src_processor_stackwalker_selftest_DEPENDENCIES) src/processor/$(am__dirstamp)
@rm -f src/processor/stackwalker_selftest$(EXEEXT)
$(CXXLINK) $(src_processor_stackwalker_selftest_OBJECTS) $(src_processor_stackwalker_selftest_LDADD) $(LIBS)
@ -3535,6 +3611,7 @@ mostlyclean-compile:
-rm -f src/common/src_processor_stackwalker_address_list_unittest-test_assembler.$(OBJEXT)
-rm -f src/common/src_processor_stackwalker_amd64_unittest-test_assembler.$(OBJEXT)
-rm -f src/common/src_processor_stackwalker_arm_unittest-test_assembler.$(OBJEXT)
-rm -f src/common/src_processor_stackwalker_mips_unittest-test_assembler.$(OBJEXT)
-rm -f src/common/src_processor_stackwalker_x86_unittest-test_assembler.$(OBJEXT)
-rm -f src/common/src_processor_synth_minidump_unittest-test_assembler.$(OBJEXT)
-rm -f src/common/stabs_reader.$(OBJEXT)
@ -3584,6 +3661,7 @@ mostlyclean-compile:
-rm -f src/processor/src_processor_stackwalker_address_list_unittest-stackwalker_address_list_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_stackwalker_amd64_unittest-stackwalker_amd64_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_stackwalker_arm_unittest-stackwalker_arm_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_stackwalker_mips_unittest-stackwalker_mips_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_stackwalker_x86_unittest-stackwalker_x86_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_static_address_map_unittest-static_address_map_unittest.$(OBJEXT)
-rm -f src/processor/src_processor_static_contained_range_map_unittest-static_contained_range_map_unittest.$(OBJEXT)
@ -3596,6 +3674,7 @@ mostlyclean-compile:
-rm -f src/processor/stackwalker_address_list.$(OBJEXT)
-rm -f src/processor/stackwalker_amd64.$(OBJEXT)
-rm -f src/processor/stackwalker_arm.$(OBJEXT)
-rm -f src/processor/stackwalker_mips.$(OBJEXT)
-rm -f src/processor/stackwalker_ppc.$(OBJEXT)
-rm -f src/processor/stackwalker_ppc64.$(OBJEXT)
-rm -f src/processor/stackwalker_selftest.$(OBJEXT)
@ -3627,6 +3706,8 @@ mostlyclean-compile:
-rm -f src/testing/gtest/src/src_processor_stackwalker_amd64_unittest-gtest_main.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_stackwalker_arm_unittest-gtest-all.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_stackwalker_arm_unittest-gtest_main.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_stackwalker_mips_unittest-gtest-all.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_stackwalker_mips_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.$(OBJEXT)
-rm -f src/testing/gtest/src/src_processor_static_address_map_unittest-gtest-all.$(OBJEXT)
@ -3652,6 +3733,7 @@ mostlyclean-compile:
-rm -f src/testing/src/src_processor_stackwalker_address_list_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_stackwalker_amd64_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_stackwalker_arm_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_stackwalker_mips_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_stackwalker_x86_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_static_address_map_unittest-gmock-all.$(OBJEXT)
-rm -f src/testing/src/src_processor_static_contained_range_map_unittest-gmock-all.$(OBJEXT)
@ -3734,6 +3816,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/src_processor_stackwalker_address_list_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/src_processor_stackwalker_amd64_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/src_processor_stackwalker_arm_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/src_processor_stackwalker_mips_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/src_processor_synth_minidump_unittest-test_assembler.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/common/$(DEPDIR)/stabs_reader.Po@am__quote@
@ -3827,6 +3910,7 @@ distclean-compile:
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9
src/client/linux/handler/exception_handler.cc
View file

@ -396,8 +396,10 @@ bool ExceptionHandler::HandleSignal(int sig, siginfo_t* info, void* uc) {
CrashContext context;
memcpy(&context.siginfo, info, sizeof(siginfo_t));
memcpy(&context.context, uc, sizeof(struct ucontext));
#if !defined(__ARM_EABI__)
#if !defined(__ARM_EABI__) && !defined(__mips__)
// FP state is not part of user ABI on ARM Linux.
// In case of MIPS Linux FP state is already part of struct ucontext
// and 'float_state' is not a member of CrashContext.
struct ucontext *uc_ptr = (struct ucontext*)uc;
if (uc_ptr->uc_mcontext.fpregs) {
memcpy(&context.float_state,
@ -602,7 +604,7 @@ bool ExceptionHandler::WriteMinidump() {
}
#endif
#if !defined(__ARM_EABI__)
#if !defined(__ARM_EABI__) && !defined(__mips__)
// FPU state is not part of ARM EABI ucontext_t.
memcpy(&context.float_state, context.context.uc_mcontext.fpregs,
sizeof(context.float_state));
@ -621,6 +623,9 @@ bool ExceptionHandler::WriteMinidump() {
#elif defined(__arm__)
context.siginfo.si_addr =
reinterpret_cast<void*>(context.context.uc_mcontext.arm_pc);
#elif defined(__mips__)
context.siginfo.si_addr =
reinterpret_cast<void*>(context.context.uc_mcontext.pc);
#else
#error "This code has not been ported to your platform yet."
#endif

4
src/client/linux/handler/exception_handler.h
View file

@ -190,8 +190,10 @@ class ExceptionHandler {
siginfo_t siginfo;
pid_t tid; // the crashing thread.
struct ucontext context;
#if !defined(__ARM_EABI__)
#if !defined(__ARM_EABI__) && !defined(__mips__)
// #ifdef this out because FP state is not part of user ABI for Linux ARM.
// In case of MIPS Linux FP state is already part of struct ucontext
// so 'float_state' is not required.
struct _libc_fpstate float_state;
#endif
};

54
src/client/linux/handler/exception_handler_unittest.cc
View file

@ -35,6 +35,9 @@
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/wait.h>
#if defined(__mips__)
#include <sys/cachectl.h>
#endif
#include <string>
@ -55,7 +58,7 @@ using namespace google_breakpad;
namespace {
// Flush the instruction cache for a given memory range.
// Only required on ARM.
// Only required on ARM and mips.
void FlushInstructionCache(const char* memory, uint32_t memory_size) {
#if defined(__arm__)
long begin = reinterpret_cast<long>(memory);
@ -72,6 +75,13 @@ void FlushInstructionCache(const char* memory, uint32_t memory_size) {
# else
# error "Your operating system is not supported yet"
# endif
#elif defined(__mips__)
# if defined(__linux__)
// See http://www.linux-mips.org/wiki/Cacheflush_Syscall.
cacheflush(const_cast<char*>(memory), memory_size, ICACHE);
# else
# error "Your operating system is not supported yet"
# endif
#endif
}
@ -435,6 +445,16 @@ TEST(ExceptionHandlerTest, StackedHandlersUnhandledToBottom) {
ASSERT_NO_FATAL_FAILURE(WaitForProcessToTerminate(child, SIGKILL));
}
const unsigned char kIllegalInstruction[] = {
#if defined(__mips__)
// mfc2 zero,Impl - usually illegal in userspace.
0x48, 0x00, 0x00, 0x48
#else
// This crashes with SIGILL on x86/x86-64/arm.
0xff, 0xff, 0xff, 0xff
#endif
};
// Test that memory around the instruction pointer is written
// to the dump as a MinidumpMemoryRegion.
TEST(ExceptionHandlerTest, InstructionPointerMemory) {
@ -446,8 +466,6 @@ TEST(ExceptionHandlerTest, InstructionPointerMemory) {
// data from the minidump afterwards.
const uint32_t kMemorySize = 256; // bytes
const int kOffset = kMemorySize / 2;
// This crashes with SIGILL on x86/x86-64/arm.
const unsigned char instructions[] = { 0xff, 0xff, 0xff, 0xff };
const pid_t child = fork();
if (child == 0) {
@ -469,7 +487,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemory) {
// Write some instructions that will crash. Put them in the middle
// of the block of memory, because the minidump should contain 128
// bytes on either side of the instruction pointer.
memcpy(memory + kOffset, instructions, sizeof(instructions));
memcpy(memory + kOffset, kIllegalInstruction, sizeof(kIllegalInstruction));
FlushInstructionCache(memory, kMemorySize);
// Now execute the instructions, which should crash.
@ -517,12 +535,13 @@ TEST(ExceptionHandlerTest, InstructionPointerMemory) {
ASSERT_TRUE(bytes);
uint8_t prefix_bytes[kOffset];
uint8_t suffix_bytes[kMemorySize - kOffset - sizeof(instructions)];
uint8_t suffix_bytes[kMemorySize - kOffset - sizeof(kIllegalInstruction)];
memset(prefix_bytes, 0, sizeof(prefix_bytes));
memset(suffix_bytes, 0, sizeof(suffix_bytes));
EXPECT_TRUE(memcmp(bytes, prefix_bytes, sizeof(prefix_bytes)) == 0);
EXPECT_TRUE(memcmp(bytes + kOffset, instructions, sizeof(instructions)) == 0);
EXPECT_TRUE(memcmp(bytes + kOffset + sizeof(instructions),
EXPECT_TRUE(memcmp(bytes + kOffset, kIllegalInstruction,
sizeof(kIllegalInstruction)) == 0);
EXPECT_TRUE(memcmp(bytes + kOffset + sizeof(kIllegalInstruction),
suffix_bytes, sizeof(suffix_bytes)) == 0);
unlink(minidump_path.c_str());
@ -539,8 +558,6 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMinBound) {
// data from the minidump afterwards.
const uint32_t kMemorySize = 256; // bytes
const int kOffset = 0;
// This crashes with SIGILL on x86/x86-64/arm.
const unsigned char instructions[] = { 0xff, 0xff, 0xff, 0xff };
const pid_t child = fork();
if (child == 0) {
@ -562,7 +579,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMinBound) {
// Write some instructions that will crash. Put them in the middle
// of the block of memory, because the minidump should contain 128
// bytes on either side of the instruction pointer.
memcpy(memory + kOffset, instructions, sizeof(instructions));
memcpy(memory + kOffset, kIllegalInstruction, sizeof(kIllegalInstruction));
FlushInstructionCache(memory, kMemorySize);
// Now execute the instructions, which should crash.
@ -609,10 +626,11 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMinBound) {
const uint8_t* bytes = region->GetMemory();
ASSERT_TRUE(bytes);
uint8_t suffix_bytes[kMemorySize / 2 - sizeof(instructions)];
uint8_t suffix_bytes[kMemorySize / 2 - sizeof(kIllegalInstruction)];
memset(suffix_bytes, 0, sizeof(suffix_bytes));
EXPECT_TRUE(memcmp(bytes + kOffset, instructions, sizeof(instructions)) == 0);
EXPECT_TRUE(memcmp(bytes + kOffset + sizeof(instructions),
EXPECT_TRUE(memcmp(bytes + kOffset, kIllegalInstruction,
sizeof(kIllegalInstruction)) == 0);
EXPECT_TRUE(memcmp(bytes + kOffset + sizeof(kIllegalInstruction),
suffix_bytes, sizeof(suffix_bytes)) == 0);
unlink(minidump_path.c_str());
}
@ -630,9 +648,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) {
// if a smaller size is requested, and this test wants to
// test the upper bound of the memory range.
const uint32_t kMemorySize = 4096; // bytes
// This crashes with SIGILL on x86/x86-64/arm.
const unsigned char instructions[] = { 0xff, 0xff, 0xff, 0xff };
const int kOffset = kMemorySize - sizeof(instructions);
const int kOffset = kMemorySize - sizeof(kIllegalInstruction);
const pid_t child = fork();
if (child == 0) {
@ -654,7 +670,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) {
// Write some instructions that will crash. Put them in the middle
// of the block of memory, because the minidump should contain 128
// bytes on either side of the instruction pointer.
memcpy(memory + kOffset, instructions, sizeof(instructions));
memcpy(memory + kOffset, kIllegalInstruction, sizeof(kIllegalInstruction));
FlushInstructionCache(memory, kMemorySize);
// Now execute the instructions, which should crash.
@ -697,7 +713,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) {
ASSERT_TRUE(region);
const size_t kPrefixSize = 128; // bytes
EXPECT_EQ(kPrefixSize + sizeof(instructions), region->GetSize());
EXPECT_EQ(kPrefixSize + sizeof(kIllegalInstruction), region->GetSize());
const uint8_t* bytes = region->GetMemory();
ASSERT_TRUE(bytes);
@ -705,7 +721,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) {
memset(prefix_bytes, 0, sizeof(prefix_bytes));
EXPECT_TRUE(memcmp(bytes, prefix_bytes, sizeof(prefix_bytes)) == 0);
EXPECT_TRUE(memcmp(bytes + kPrefixSize,
instructions, sizeof(instructions)) == 0);
kIllegalInstruction, sizeof(kIllegalInstruction)) == 0);
unlink(minidump_path.c_str());
}

3
src/client/linux/minidump_writer/linux_core_dumper.cc
View file

@ -99,6 +99,9 @@ bool LinuxCoreDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) {
memcpy(&stack_pointer, &info->regs.rsp, sizeof(info->regs.rsp));
#elif defined(__ARM_EABI__)
memcpy(&stack_pointer, &info->regs.ARM_sp, sizeof(info->regs.ARM_sp));
#elif defined(__mips__)
stack_pointer =
reinterpret_cast<uint8_t*>(info->regs.regs[MD_CONTEXT_MIPS_REG_SP]);
#else
#error "This code hasn't been ported to your platform yet."
#endif

8
src/client/linux/minidump_writer/linux_dumper.h
View file

@ -54,7 +54,7 @@ typedef typeof(((struct user*) 0)->u_debugreg[0]) debugreg_t;
#endif
// Typedef for our parsing of the auxv variables in /proc/pid/auxv.
#if defined(__i386) || defined(__ARM_EABI__)
#if defined(__i386) || defined(__ARM_EABI__) || defined(__mips__)
typedef Elf32_auxv_t elf_aux_entry;
#elif defined(__x86_64)
typedef Elf64_auxv_t elf_aux_entry;
@ -88,6 +88,12 @@ struct ThreadInfo {
// Mimicking how strace does this(see syscall.c, search for GETREGS)
struct user_regs regs;
struct user_fpregs fpregs;
#elif defined(__mips__)
user_regs_struct regs;
user_fpregs_struct fpregs;
uint32_t hi[3];
uint32_t lo[3];
uint32_t dsp_control;
#endif
};

2
src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc
View file

@ -47,6 +47,8 @@
#define TID_PTR_REGISTER "ecx"
#elif defined(__x86_64)
#define TID_PTR_REGISTER "rcx"
#elif defined(__mips__)
#define TID_PTR_REGISTER "$1"
#else
#error This test has not been ported to this platform.
#endif

14
src/client/linux/minidump_writer/linux_ptrace_dumper.cc
View file

@ -208,6 +208,17 @@ bool LinuxPtraceDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) {
}
#endif
#if defined(__mips__)
for (int i = 0; i < 3; ++i) {
sys_ptrace(PTRACE_PEEKUSER, tid,
reinterpret_cast<void*>(DSP_BASE + (i * 2)), &info->hi[i]);
sys_ptrace(PTRACE_PEEKUSER, tid,
reinterpret_cast<void*>(DSP_BASE + (i * 2) + 1), &info->lo[i]);
}
sys_ptrace(PTRACE_PEEKUSER, tid,
reinterpret_cast<void*>(DSP_CONTROL), &info->dsp_control);
#endif
const uint8_t* stack_pointer;
#if defined(__i386)
my_memcpy(&stack_pointer, &info->regs.esp, sizeof(info->regs.esp));
@ -215,6 +226,9 @@ bool LinuxPtraceDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) {
my_memcpy(&stack_pointer, &info->regs.rsp, sizeof(info->regs.rsp));
#elif defined(__ARM_EABI__)
my_memcpy(&stack_pointer, &info->regs.ARM_sp, sizeof(info->regs.ARM_sp));
#elif defined(__mips__)
stack_pointer =
reinterpret_cast<uint8_t*>(info->regs.regs[MD_CONTEXT_MIPS_REG_SP]);
#else
#error "This code hasn't been ported to your platform yet."
#endif

5
src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc
View file

@ -266,7 +266,7 @@ TEST_F(LinuxPtraceDumperChildTest, BuildProcPath) {
EXPECT_FALSE(dumper.BuildProcPath(maps_path, 123, long_node));
}
#if !defined(__ARM_EABI__)
#if !defined(__ARM_EABI__) && !defined(__mips__)
// Ensure that the linux-gate VDSO is included in the mapping list.
TEST_F(LinuxPtraceDumperChildTest, MappingsIncludeLinuxGate) {
LinuxPtraceDumper dumper(getppid());
@ -437,6 +437,9 @@ TEST(LinuxPtraceDumperTest, VerifyStackReadWithMultipleThreads) {
pid_t* process_tid_location = (pid_t*)(one_thread.regs.ecx);
#elif defined(__x86_64)
pid_t* process_tid_location = (pid_t*)(one_thread.regs.rcx);
#elif defined(__mips__)
pid_t* process_tid_location =
reinterpret_cast<pid_t*>(one_thread.regs.regs[1]);
#else
#error This test has not been ported to this platform.
#endif

85
src/client/linux/minidump_writer/minidump_writer.cc
View file

@ -374,6 +374,67 @@ void CPUFillFromUContext(MDRawContextARM* out, const ucontext* uc,
my_memset(&out->float_save.extra, 0, sizeof(out->float_save.extra));
}
#elif defined(__mips__)
typedef MDRawContextMIPS RawContextCPU;
static void CPUFillFromThreadInfo(MDRawContextMIPS* out,
const google_breakpad::ThreadInfo& info) {
out->context_flags = MD_CONTEXT_MIPS_FULL;
for (int i = 0; i < MD_CONTEXT_MIPS_GPR_COUNT; ++i)
out->iregs[i] = info.regs.regs[i];
out->mdhi = info.regs.hi;
out->mdlo = info.regs.lo;
for (int i = 0; i < MD_CONTEXT_MIPS_DSP_COUNT; ++i) {
out->hi[i] = info.hi[i];
out->lo[i] = info.lo[i];
}
out->dsp_control = info.dsp_control;
out->epc = info.regs.epc;
out->badvaddr = info.regs.badvaddr;
out->status = info.regs.status;
out->cause = info.regs.cause;
for (int i = 0; i < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT; ++i)
out->float_save.regs[i] = info.fpregs.regs[i];
out->float_save.fpcsr = info.fpregs.fpcsr;
out->float_save.fir = info.fpregs.fir;
}
static void CPUFillFromUContext(MDRawContextMIPS* out, const ucontext* uc,
const struct _libc_fpstate* fpregs) {
out->context_flags = MD_CONTEXT_MIPS_FULL;
for (int i = 0; i < MD_CONTEXT_MIPS_GPR_COUNT; ++i)
out->iregs[i] = uc->uc_mcontext.gregs[i];
out->mdhi = uc->uc_mcontext.mdhi;
out->mdlo = uc->uc_mcontext.mdlo;
out->hi[0] = uc->uc_mcontext.hi1;
out->hi[1] = uc->uc_mcontext.hi2;
out->hi[2] = uc->uc_mcontext.hi3;
out->lo[0] = uc->uc_mcontext.lo1;
out->lo[1] = uc->uc_mcontext.lo2;
out->lo[2] = uc->uc_mcontext.lo3;
out->dsp_control = uc->uc_mcontext.dsp;
out->epc = uc->uc_mcontext.pc;
out->badvaddr = 0; // Not reported in signal context.
out->status = 0; // Not reported in signal context.
out->cause = 0; // Not reported in signal context.
for (int i = 0; i < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT; ++i)
out->float_save.regs[i] = uc->uc_mcontext.fpregs.fp_r.fp_dregs[i];
out->float_save.fpcsr = uc->uc_mcontext.fpc_csr;
out->float_save.fir = uc->uc_mcontext.fpc_eir; // Unused.
}
#else
#error "This code has not been ported to your platform yet."
#endif
@ -405,7 +466,7 @@ class MinidumpWriter {
: fd_(minidump_fd),
path_(minidump_path),
ucontext_(context ? &context->context : NULL),
#if !defined(__ARM_EABI__)
#if !defined(__ARM_EABI__) && !defined(__mips__)
float_state_(context ? &context->float_state : NULL),
#else
// TODO: fix this after fixing ExceptionHandler
@ -1206,6 +1267,18 @@ class MinidumpWriter {
uintptr_t GetInstructionPointer(const ThreadInfo& info) {
return info.regs.uregs[15];
}
#elif defined(__mips__)
uintptr_t GetStackPointer() {
return ucontext_->uc_mcontext.gregs[MD_CONTEXT_MIPS_REG_SP];
}
uintptr_t GetInstructionPointer() {
return ucontext_->uc_mcontext.pc;
}
uintptr_t GetInstructionPointer(const ThreadInfo& info) {
return info.regs.epc;
}
#else
#error "This code has not been ported to your platform yet."
#endif
@ -1216,7 +1289,7 @@ class MinidumpWriter {
dirent->location.rva = 0;
}
#if defined(__i386__) || defined(__x86_64__)
#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
bool WriteCPUInformation(MDRawSystemInfo* sys_info) {
char vendor_id[sizeof(sys_info->cpu.x86_cpu_info.vendor_id) + 1] = {0};
static const char vendor_id_name[] = "vendor_id";
@ -1227,14 +1300,18 @@ class MinidumpWriter {
bool found;
} cpu_info_table[] = {
{ "processor", -1, false },
#if !defined(__mips__)
{ "model", 0, false },
{ "stepping", 0, false },
{ "cpu family", 0, false },
#endif
};
// processor_architecture should always be set, do this first
sys_info->processor_architecture =
#if defined(__i386__)
#if defined(__mips__)
MD_CPU_ARCHITECTURE_MIPS;
#elif defined(__i386__)
MD_CPU_ARCHITECTURE_X86;
#else
MD_CPU_ARCHITECTURE_AMD64;
@ -1297,9 +1374,11 @@ class MinidumpWriter {
cpu_info_table[0].value++;
sys_info->number_of_processors = cpu_info_table[0].value;
#if !defined(__mips__)
sys_info->processor_level = cpu_info_table[3].value;
sys_info->processor_revision = cpu_info_table[1].value << 8 |
cpu_info_table[2].value;
#endif
if (vendor_id[0] != '\0') {
my_memcpy(sys_info->cpu.x86_cpu_info.vendor_id, vendor_id,

6
src/client/linux/minidump_writer/minidump_writer_unittest.cc
View file

@ -540,6 +540,12 @@ TEST(MinidumpWriterTest, InvalidStackPointer) {
uintptr_t invalid_stack_pointer =
reinterpret_cast<uintptr_t>(&context) - 1024*1024;
context.context.uc_mcontext.arm_sp = invalid_stack_pointer;
#elif defined(__mips__)
// Try 1MB below the current stack.
uintptr_t invalid_stack_pointer =
reinterpret_cast<uintptr_t>(&context) - 1024 * 1024;
context.context.uc_mcontext.gregs[MD_CONTEXT_MIPS_REG_SP] =
invalid_stack_pointer;
#else
# error "This code has not been ported to your platform yet."
#endif

5
src/common/dwarf/dwarf2reader.cc
View file

@ -1512,16 +1512,19 @@ bool CallFrameInfo::State::DoInstruction() {
// Change the base register used to compute the CFA.
case DW_CFA_def_cfa_register: {
if (!ParseOperands("r", &ops)) return false;
Rule *cfa_rule = rules_.CFARule();
if (!cfa_rule) {
if (!DoDefCFA(ops.register_number, ops.offset)) {
reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
return false;
}
if (!ParseOperands("r", &ops)) return false;
} else {
cfa_rule->SetBaseRegister(ops.register_number);
if (!cfa_rule->Handle(handler_, address_,
Handler::kCFARegister))
return false;
}
break;
}

17
src/common/dwarf_cfi_to_module.cc
View file

@ -105,6 +105,23 @@ vector<string> DwarfCFIToModule::RegisterNames::ARM() {
return MakeVector(names, sizeof(names) / sizeof(names[0]));
}
vector<string> DwarfCFIToModule::RegisterNames::MIPS() {
static const char* const kRegisterNames[] = {
"$zero", "$at", "$v0", "$v1", "$a0", "$a1", "$a2", "$a3",
"$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7",
"$s0", "$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7",
"$t8", "$t9", "$k0", "$k1", "$gp", "$sp", "$fp", "$ra",
"$lo", "$hi", "$pc", "$f0", "$f2", "$f3", "$f4", "$f5",
"$f6", "$f7", "$f8", "$f9", "$f10", "$f11", "$f12", "$f13",
"$f14", "$f15", "$f16", "$f17", "$f18", "$f19", "$f20",
"$f21", "$f22", "$f23", "$f24", "$f25", "$f26", "$f27",
"$f28", "$f29", "$f30", "$f31", "$fcsr", "$fir"
};
return MakeVector(kRegisterNames,
sizeof(kRegisterNames) / sizeof(kRegisterNames[0]));
}
bool DwarfCFIToModule::Entry(size_t offset, uint64 address, uint64 length,
uint8 version, const string &augmentation,
unsigned return_address) {

3
src/common/dwarf_cfi_to_module.h
View file

@ -109,6 +109,9 @@ class DwarfCFIToModule: public CallFrameInfo::Handler {
// ARM.
static vector<string> ARM();
// MIPS.
static vector<string> MIPS();
private:
// Given STRINGS, an array of C strings with SIZE elements, return an
// equivalent vector<string>.

12
src/common/linux/dump_symbols.cc
View file

@ -291,6 +291,9 @@ bool DwarfCFIRegisterNames(const typename ElfClass::Ehdr* elf_header,
case EM_ARM:
*register_names = DwarfCFIToModule::RegisterNames::ARM();
return true;
case EM_MIPS:
*register_names = DwarfCFIToModule::RegisterNames::MIPS();
return true;
case EM_X86_64:
*register_names = DwarfCFIToModule::RegisterNames::X86_64();
return true;
@ -534,6 +537,7 @@ bool LoadSymbols(const string& obj_file,
typedef typename ElfClass::Addr Addr;
typedef typename ElfClass::Phdr Phdr;
typedef typename ElfClass::Shdr Shdr;
typedef typename ElfClass::Word Word;
Addr loading_addr = GetLoadingAddress<ElfClass>(
GetOffset<ElfClass, Phdr>(elf_header, elf_header->e_phoff),
@ -541,6 +545,8 @@ bool LoadSymbols(const string& obj_file,
module->SetLoadAddress(loading_addr);
info->set_loading_addr(loading_addr, obj_file);
Word debug_section_type =
elf_header->e_machine == EM_MIPS ? SHT_MIPS_DWARF : SHT_PROGBITS;
const Shdr* sections =
GetOffset<ElfClass, Shdr>(elf_header, elf_header->e_shoff);
const Shdr* section_names = sections + elf_header->e_shstrndx;
@ -574,7 +580,7 @@ bool LoadSymbols(const string& obj_file,
// Look for DWARF debugging information, and load it if present.
const Shdr* dwarf_section =
FindElfSectionByName<ElfClass>(".debug_info", SHT_PROGBITS,
FindElfSectionByName<ElfClass>(".debug_info", debug_section_type,
sections, names, names_end,
elf_header->e_shnum);
if (dwarf_section) {
@ -593,7 +599,7 @@ bool LoadSymbols(const string& obj_file,
// Dwarf Call Frame Information (CFI) is actually independent from
// the other DWARF debugging information, and can be used alone.
const Shdr* dwarf_cfi_section =
FindElfSectionByName<ElfClass>(".debug_frame", SHT_PROGBITS,
FindElfSectionByName<ElfClass>(".debug_frame", debug_section_type,
sections, names, names_end,
elf_header->e_shnum);
if (dwarf_cfi_section) {
@ -611,7 +617,7 @@ bool LoadSymbols(const string& obj_file,
// Linux C++ exception handling information can also provide
// unwinding data.
const Shdr* eh_frame_section =
FindElfSectionByName<ElfClass>(".eh_frame", SHT_PROGBITS,
FindElfSectionByName<ElfClass>(".eh_frame", debug_section_type,
sections, names, names_end,
elf_header->e_shnum);
if (eh_frame_section) {

178
src/google_breakpad/common/minidump_cpu_mips.h Normal file
View file

@ -0,0 +1,178 @@
/* Copyright (c) 2013, 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. */
/* minidump_format.h: A cross-platform reimplementation of minidump-related
* portions of DbgHelp.h from the Windows Platform SDK.
*
* (This is C99 source, please don't corrupt it with C++.)
*
* This file contains the necessary definitions to read minidump files
* produced on MIPS. These files may be read on any platform provided
* that the alignments of these structures on the processing system are
* identical to the alignments of these structures on the producing system.
* For this reason, precise-sized types are used. The structures defined
* by this file have been laid out to minimize alignment problems by
* ensuring that all members are aligned on their natural boundaries.
* In some cases, tail-padding may be significant when different ABIs specify
* different tail-padding behaviors. To avoid problems when reading or
* writing affected structures, MD_*_SIZE macros are provided where needed,
* containing the useful size of the structures without padding.
*
* Structures that are defined by Microsoft to contain a zero-length array
* are instead defined here to contain an array with one element, as
* zero-length arrays are forbidden by standard C and C++. In these cases,
* *_minsize constants are provided to be used in place of sizeof. For a
* cleaner interface to these sizes when using C++, see minidump_size.h.
*
* These structures are also sufficient to populate minidump files.
*
* Because precise data type sizes are crucial for this implementation to
* function properly and portably, a set of primitive types with known sizes
* are used as the basis of each structure defined by this file.
*
* Author: Chris Dearman
*/
/*
* MIPS support
*/
#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__
#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__
#ifdef __mips__
typedef struct {
uint64_t regs[32];
uint64_t lo;
uint64_t hi;
uint64_t epc;
uint64_t badvaddr;
uint64_t status;
uint64_t cause;
} user_regs_struct;
typedef struct {
uint64_t regs[32];
uint32_t fpcsr;
uint32_t fir;
} user_fpregs_struct;
#endif
#define MD_CONTEXT_MIPS_GPR_COUNT 32
#define MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT 32
#define MD_CONTEXT_MIPS_DSP_COUNT 3
/*
* Note that these structures *do not* map directly to the CONTEXT
* structure defined in WinNT.h in the Windows Mobile SDK. That structure
* does not accomodate VFPv3, and I'm unsure if it was ever used in the
* wild anyway, as Windows CE only seems to produce "cedumps" which
* are not exactly minidumps.
*/
typedef struct {
/* 32 64-bit floating point registers, f0..f31 */
uint64_t regs[MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT];
uint32_t fpcsr; /* FPU status register. */
uint32_t fir; /* FPU implementation register. */
} MDFloatingSaveAreaMIPS;
typedef struct {
/* The next field determines the layout of the structure, and which parts
* of it are populated.
*/
uint32_t context_flags;
uint32_t _pad0;
/* 32 64-bit integer registers, r0..r31.
* Note the following fixed uses:
* r30 is the stack pointer.
* r31 is the return address (link register).
*/
uint64_t iregs[MD_CONTEXT_MIPS_GPR_COUNT];
/* multiply/divide result. */
uint64_t mdhi, mdlo;
/* DSP accumulators. */
uint32_t hi[MD_CONTEXT_MIPS_DSP_COUNT];
uint32_t lo[MD_CONTEXT_MIPS_DSP_COUNT];
uint32_t dsp_control;
uint32_t _pad1;
uint64_t epc;
uint64_t badvaddr;
uint32_t status;
uint32_t cause;
/* The next field is included with MD_CONTEXT_MIPS_FLOATING_POINT. */
MDFloatingSaveAreaMIPS float_save;
} MDRawContextMIPS;
/* Indices into iregs for registers with a dedicated or conventional
* purpose.
*/
enum MDMIPSRegisterNumbers {
MD_CONTEXT_MIPS_REG_S0 = 16,
MD_CONTEXT_MIPS_REG_S1 = 17,
MD_CONTEXT_MIPS_REG_S2 = 18,
MD_CONTEXT_MIPS_REG_S3 = 19,
MD_CONTEXT_MIPS_REG_S4 = 20,
MD_CONTEXT_MIPS_REG_S5 = 21,
MD_CONTEXT_MIPS_REG_S6 = 22,
MD_CONTEXT_MIPS_REG_S7 = 23,
MD_CONTEXT_MIPS_REG_GP = 28,
MD_CONTEXT_MIPS_REG_SP = 29,
MD_CONTEXT_MIPS_REG_FP = 30,
MD_CONTEXT_MIPS_REG_RA = 31,
};
/* For (MDRawContextMIPS).context_flags. These values indicate the type of
* context stored in the structure. */
/* CONTEXT_MIPS from the Windows CE 5.0 SDK. This value isn't correct
* because this bit can be used for flags. Presumably this value was
* never actually used in minidumps, but only in "CEDumps" which
* are a whole parallel minidump file format for Windows CE.
* Therefore, Breakpad defines its own value for MIPS CPUs.
*/
#define MD_CONTEXT_MIPS 0x00040000
#define MD_CONTEXT_MIPS_INTEGER (MD_CONTEXT_MIPS | 0x00000002)
#define MD_CONTEXT_MIPS_FLOATING_POINT (MD_CONTEXT_MIPS | 0x00000004)
#define MD_CONTEXT_MIPS_DSP (MD_CONTEXT_MIPS | 0x00000008)
#define MD_CONTEXT_MIPS_FULL (MD_CONTEXT_MIPS_INTEGER | \
MD_CONTEXT_MIPS_FLOATING_POINT | \
MD_CONTEXT_MIPS_DSP)
#define MD_CONTEXT_MIPS_ALL (MD_CONTEXT_MIPS_INTEGER | \
MD_CONTEXT_MIPS_FLOATING_POINT \
MD_CONTEXT_MIPS_DSP)
#endif // GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__

2
src/google_breakpad/common/minidump_format.h
View file

@ -97,7 +97,6 @@ typedef struct {
#define MD_CONTEXT_IA64 0x00080000 /* CONTEXT_IA64 */
/* Additional values from winnt.h in the Windows CE 5.0 SDK: */
#define MD_CONTEXT_SHX 0x000000c0 /* CONTEXT_SH4 (Super-H, includes SH3) */
#define MD_CONTEXT_MIPS 0x00010000 /* CONTEXT_R4000 (same value as x86?) */
#define MD_CONTEXT_ALPHA 0x00020000 /* CONTEXT_ALPHA */
/* As of Windows 7 SP1, the number of flag bits has increased to
@ -115,6 +114,7 @@ typedef struct {
#include "minidump_cpu_amd64.h"
#include "minidump_cpu_arm.h"
#include "minidump_cpu_mips.h"
#include "minidump_cpu_ppc.h"
#include "minidump_cpu_ppc64.h"
#include "minidump_cpu_sparc.h"

2
src/google_breakpad/processor/minidump.h
View file

@ -187,6 +187,7 @@ class MinidumpContext : public MinidumpStream {
// NULL.
const MDRawContextAMD64* GetContextAMD64() const;
const MDRawContextARM* GetContextARM() const;
const MDRawContextMIPS* GetContextMIPS() const;
const MDRawContextPPC* GetContextPPC() const;
const MDRawContextPPC64* GetContextPPC64() const;
const MDRawContextSPARC* GetContextSPARC() const;
@ -209,6 +210,7 @@ class MinidumpContext : public MinidumpStream {
// so variables can NOT be named as sparc
MDRawContextSPARC* ctx_sparc;
MDRawContextARM* arm;
MDRawContextMIPS* ctx_mips;
} context_;
// Store this separately because of the weirdo AMD64 context

66
src/google_breakpad/processor/stack_frame_cpu.h
View file

@ -270,6 +270,72 @@ struct StackFrameARM : public StackFrame {
int context_validity;
};
struct StackFrameMIPS : public StackFrame {
// MIPS callee save registers for o32 ABI (32bit registers) are:
// 1. $s0-$s7,
// 2. $sp, $fp
// 3. $f20-$f31
//
// The register structure is available at
// http://en.wikipedia.org/wiki/MIPS_architecture#Compiler_register_usage
#define INDEX_MIPS_REG_S0 MD_CONTEXT_MIPS_REG_S0 // 16
#define INDEX_MIPS_REG_S7 MD_CONTEXT_MIPS_REG_S7 // 23
#define INDEX_MIPS_REG_GP MD_CONTEXT_MIPS_REG_GP // 28
#define INDEX_MIPS_REG_RA MD_CONTEXT_MIPS_REG_RA // 31
#define INDEX_MIPS_REG_PC 34
#define SHIFT_MIPS_REG_S0 0
#define SHIFT_MIPS_REG_GP 8
#define SHIFT_MIPS_REG_PC 12
enum ContextValidity {
CONTEXT_VALID_NONE = 0,
CONTEXT_VALID_S0 = 1 << 0, // $16
CONTEXT_VALID_S1 = 1 << 1, // $17
CONTEXT_VALID_S2 = 1 << 2, // $18
CONTEXT_VALID_S3 = 1 << 3, // $19
CONTEXT_VALID_S4 = 1 << 4, // $20
CONTEXT_VALID_S5 = 1 << 5, // $21
CONTEXT_VALID_S6 = 1 << 6, // $22
CONTEXT_VALID_S7 = 1 << 7, // $23
// GP is not calee-save for o32 abi.
CONTEXT_VALID_GP = 1 << 8, // $28
CONTEXT_VALID_SP = 1 << 9, // $29
CONTEXT_VALID_FP = 1 << 10, // $30
CONTEXT_VALID_RA = 1 << 11, // $31
CONTEXT_VALID_PC = 1 << 12, // $34
CONTEXT_VALID_ALL = ~CONTEXT_VALID_NONE
};
// Return the ContextValidity flag for register rN.
static ContextValidity RegisterValidFlag(int n) {
if (n >= INDEX_MIPS_REG_S0 && n <= INDEX_MIPS_REG_S7)
return ContextValidity(1 << (n - INDEX_MIPS_REG_S0 + SHIFT_MIPS_REG_S0));
else if (n >= INDEX_MIPS_REG_GP && n <= INDEX_MIPS_REG_RA)
return ContextValidity(1 << (n - INDEX_MIPS_REG_GP + SHIFT_MIPS_REG_GP));
else if (n == INDEX_MIPS_REG_PC)
return ContextValidity(1 << SHIFT_MIPS_REG_PC);
return CONTEXT_VALID_NONE;
}
StackFrameMIPS() : context(), context_validity(CONTEXT_VALID_NONE) {}
// Register state. This is only fully valid for the topmost frame in a
// stack. In other frames, which registers are present depends on what
// debugging information were available. Refer to 'context_validity' below.
MDRawContextMIPS context;
// For each register in context whose value has been recovered,
// the corresponding CONTEXT_VALID_ bit in 'context_validity' is set.
//
// context_validity's type should actually be ContextValidity, but
// type int is used instead because the bitwise inclusive or operator
// yields an int when applied to enum values, and C++ doesn't
// silently convert from ints to enums.
int context_validity;
};
} // namespace google_breakpad
#endif // GOOGLE_BREAKPAD_PROCESSOR_STACK_FRAME_CPU_H__

133
src/processor/minidump.cc
View file

@ -844,6 +844,71 @@ bool MinidumpContext::Read(uint32_t expected_size) {
break;
}
case MD_CONTEXT_MIPS: {
if (expected_size != sizeof(MDRawContextMIPS)) {
BPLOG(ERROR) << "MinidumpContext MIPS size mismatch, "
<< expected_size
<< " != "
<< sizeof(MDRawContextMIPS);
return false;
}
scoped_ptr<MDRawContextMIPS> context_mips(new MDRawContextMIPS());
// Set the context_flags member, which has already been read, and
// read the rest of the structure beginning with the first member
// after context_flags.
context_mips->context_flags = context_flags;
size_t flags_size = sizeof(context_mips->context_flags);
uint8_t* context_after_flags =
reinterpret_cast<uint8_t*>(context_mips.get()) + flags_size;
if (!minidump_->ReadBytes(context_after_flags,
sizeof(MDRawContextMIPS) - flags_size)) {
BPLOG(ERROR) << "MinidumpContext could not read MIPS context";
return false;
}
// Do this after reading the entire MDRawContext structure because
// GetSystemInfo may seek minidump to a new position.
if (!CheckAgainstSystemInfo(cpu_type)) {
BPLOG(ERROR) << "MinidumpContext MIPS does not match system info";
return false;
}
if (minidump_->swap()) {
// context_mips->context_flags was already swapped.
for (int ireg_index = 0;
ireg_index < MD_CONTEXT_MIPS_GPR_COUNT;
++ireg_index) {
Swap(&context_mips->iregs[ireg_index]);
}
Swap(&context_mips->mdhi);
Swap(&context_mips->mdlo);
for (int dsp_index = 0;
dsp_index < MD_CONTEXT_MIPS_DSP_COUNT;
++dsp_index) {
Swap(&context_mips->hi[dsp_index]);
Swap(&context_mips->lo[dsp_index]);
}
Swap(&context_mips->dsp_control);
Swap(&context_mips->epc);
Swap(&context_mips->badvaddr);
Swap(&context_mips->status);
Swap(&context_mips->cause);
for (int fpr_index = 0;
fpr_index < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT;
++fpr_index) {
Swap(&context_mips->float_save.regs[fpr_index]);
}
Swap(&context_mips->float_save.fpcsr);
Swap(&context_mips->float_save.fir);
}
context_.ctx_mips = context_mips.release();
break;
}
default: {
// Unknown context type - Don't log as an error yet. Let the
// caller work that out.
@ -901,6 +966,9 @@ bool MinidumpContext::GetInstructionPointer(uint64_t* ip) const {
case MD_CONTEXT_X86:
*ip = context_.x86->eip;
break;
case MD_CONTEXT_MIPS:
*ip = context_.ctx_mips->epc;
break;
default:
// This should never happen.
BPLOG(ERROR) << "Unknown CPU architecture in GetInstructionPointer";
@ -965,6 +1033,15 @@ const MDRawContextARM* MinidumpContext::GetContextARM() const {
return context_.arm;
}
const MDRawContextMIPS* MinidumpContext::GetContextMIPS() const {
if (GetContextCPU() != MD_CONTEXT_MIPS) {
BPLOG(ERROR) << "MinidumpContext cannot get MIPS context";
return NULL;
}
return context_.ctx_mips;
}
void MinidumpContext::FreeContext() {
switch (GetContextCPU()) {
case MD_CONTEXT_X86:
@ -991,6 +1068,10 @@ void MinidumpContext::FreeContext() {
delete context_.arm;
break;
case MD_CONTEXT_MIPS:
delete context_.ctx_mips;
break;
default:
// There is no context record (valid_ is false) or there's a
// context record for an unknown CPU (shouldn't happen, only known
@ -1060,6 +1141,11 @@ bool MinidumpContext::CheckAgainstSystemInfo(uint32_t context_cpu_type) {
if (system_info_cpu_type == MD_CPU_ARCHITECTURE_ARM)
return_value = true;
break;
case MD_CONTEXT_MIPS:
if (system_info_cpu_type == MD_CPU_ARCHITECTURE_MIPS)
return_value = true;
break;
}
BPLOG_IF(ERROR, !return_value) << "MinidumpContext CPU " <<
@ -1338,6 +1424,53 @@ void MinidumpContext::Print() {
break;
}
case MD_CONTEXT_MIPS: {
const MDRawContextMIPS* context_mips = GetContextMIPS();
printf("MDRawContextMIPS\n");
printf(" context_flags = 0x%x\n",
context_mips->context_flags);
for (int ireg_index = 0;
ireg_index < MD_CONTEXT_MIPS_GPR_COUNT;
++ireg_index) {
printf(" iregs[%2d] = 0x%" PRIx64 "\n",
ireg_index, context_mips->iregs[ireg_index]);
}
printf(" mdhi = 0x%" PRIx64 "\n",
context_mips->mdhi);
printf(" mdlo = 0x%" PRIx64 "\n",
context_mips->mdhi);
for (int dsp_index = 0;
dsp_index < MD_CONTEXT_MIPS_DSP_COUNT;
++dsp_index) {
printf(" hi[%1d] = 0x%" PRIx32 "\n",
dsp_index, context_mips->hi[dsp_index]);
printf(" lo[%1d] = 0x%" PRIx32 "\n",
dsp_index, context_mips->lo[dsp_index]);
}
printf(" dsp_control = 0x%" PRIx32 "\n",
context_mips->dsp_control);
printf(" epc = 0x%" PRIx64 "\n",
context_mips->epc);
printf(" badvaddr = 0x%" PRIx64 "\n",
context_mips->badvaddr);
printf(" status = 0x%" PRIx32 "\n",
context_mips->status);
printf(" cause = 0x%" PRIx32 "\n",
context_mips->cause);
for (int fpr_index = 0;
fpr_index < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT;
++fpr_index) {
printf(" float_save.regs[%2d] = 0x%" PRIx64 "\n",
fpr_index, context_mips->float_save.regs[fpr_index]);
}
printf(" float_save.fpcsr = 0x%" PRIx32 "\n",
context_mips->float_save.fpcsr);
printf(" float_save.fir = 0x%" PRIx32 "\n",
context_mips->float_save.fir);
break;
}
default: {
break;
}

5
src/processor/minidump_processor.cc
View file

@ -505,6 +505,11 @@ bool MinidumpProcessor::GetCPUInfo(Minidump *dump, SystemInfo *info) {
break;
}
case MD_CPU_ARCHITECTURE_MIPS: {
info->cpu = "mips";
break;
}
default: {
// Assign the numeric architecture ID into the CPU string.
char cpu_string[7];

57
src/processor/minidump_stackwalk.cc
View file

@ -72,6 +72,7 @@ using google_breakpad::StackFrameSPARC;
using google_breakpad::StackFrameX86;
using google_breakpad::StackFrameAMD64;
using google_breakpad::StackFrameARM;
using google_breakpad::StackFrameMIPS;
// Separator character for machine readable output.
static const char kOutputSeparator = '|';
@ -271,6 +272,62 @@ static void PrintStack(const CallStack *stack, const string &cpu) {
sequence = PrintRegister("lr", frame_arm->context.iregs[14], sequence);
if (frame_arm->context_validity & StackFrameARM::CONTEXT_VALID_PC)
sequence = PrintRegister("pc", frame_arm->context.iregs[15], sequence);
} else if (cpu == "mips") {
const StackFrameMIPS* frame_mips =
reinterpret_cast<const StackFrameMIPS*>(frame);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_GP)
sequence = PrintRegister64("gp",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_GP],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_SP)
sequence = PrintRegister64("sp",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_SP],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_FP)
sequence = PrintRegister64("fp",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_FP],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_RA)
sequence = PrintRegister64("ra",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_RA],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_PC)
sequence = PrintRegister64("pc", frame_mips->context.epc, sequence);
// Save registers s0-s7
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S0)
sequence = PrintRegister64("s0",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S0],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S1)
sequence = PrintRegister64("s1",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S1],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S2)
sequence = PrintRegister64("s2",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S2],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S3)
sequence = PrintRegister64("s3",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S3],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S4)
sequence = PrintRegister64("s4",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S4],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S5)
sequence = PrintRegister64("s5",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S5],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S6)
sequence = PrintRegister64("s6",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S6],
sequence);
if (frame_mips->context_validity & StackFrameMIPS::CONTEXT_VALID_S7)
sequence = PrintRegister64("s7",
frame_mips->context.iregs[MD_CONTEXT_MIPS_REG_S7],
sequence);
}
printf("\n Found by: %s\n", frame->trust_description().c_str());
}

113
src/processor/minidump_unittest.cc
View file

@ -1150,4 +1150,117 @@ TEST(Dump, OneExceptionARMOldFlags) {
EXPECT_EQ(0x2e951ef7U, raw_context.cpsr);
}
TEST(Dump, OneExceptionMIPS) {
Dump dump(0, kLittleEndian);
MDRawContextMIPS raw_context;
raw_context.context_flags = MD_CONTEXT_MIPS_INTEGER;
raw_context.iregs[0] = 0x3ecba80d;
raw_context.iregs[1] = 0x382583b9;
raw_context.iregs[2] = 0x7fccc03f;
raw_context.iregs[3] = 0xf62f8ec2;
raw_context.iregs[4] = 0x46a6a6a8;
raw_context.iregs[5] = 0x6a5025e2;
raw_context.iregs[6] = 0xd9fabb4a;
raw_context.iregs[7] = 0x6913f540;
raw_context.iregs[8] = 0xbffe6eda;
raw_context.iregs[9] = 0xb2ce1e2d;
raw_context.iregs[10] = 0x659caaa4;
raw_context.iregs[11] = 0xf0e0d0c0;
raw_context.iregs[12] = 0xa9b8c7d6;
raw_context.iregs[13] = 0x12345678;
raw_context.iregs[14] = 0xabcd1234;
raw_context.iregs[15] = 0x10203040;
raw_context.iregs[16] = 0xa80d3ecb;
raw_context.iregs[17] = 0x83b93825;
raw_context.iregs[18] = 0xc03f7fcc;
raw_context.iregs[19] = 0x8ec2f62f;
raw_context.iregs[20] = 0xa6a846a6;
raw_context.iregs[21] = 0x25e26a50;
raw_context.iregs[22] = 0xbb4ad9fa;
raw_context.iregs[23] = 0xf5406913;
raw_context.iregs[24] = 0x6edabffe;
raw_context.iregs[25] = 0x1e2db2ce;
raw_context.iregs[26] = 0xaaa4659c;
raw_context.iregs[27] = 0xd0c0f0e0;
raw_context.iregs[28] = 0xc7d6a9b8;
raw_context.iregs[29] = 0x56781234;
raw_context.iregs[30] = 0x1234abcd;
raw_context.iregs[31] = 0x30401020;
Context context(dump, raw_context);
Exception exception(dump, context,
0x1234abcd, // Thread id.
0xdcba4321, // Exception code.
0xf0e0d0c0, // Exception flags.
0x0919a9b9); // Exception address.
dump.Add(&context);
dump.Add(&exception);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(1U, minidump.GetDirectoryEntryCount());
MinidumpException *md_exception = minidump.GetException();
ASSERT_TRUE(md_exception != NULL);
uint32_t thread_id;
ASSERT_TRUE(md_exception->GetThreadID(&thread_id));
ASSERT_EQ(0x1234abcdU, thread_id);
const MDRawExceptionStream* raw_exception = md_exception->exception();
ASSERT_TRUE(raw_exception != NULL);
EXPECT_EQ(0xdcba4321, raw_exception->exception_record.exception_code);
EXPECT_EQ(0xf0e0d0c0, raw_exception->exception_record.exception_flags);
EXPECT_EQ(0x0919a9b9U,
raw_exception->exception_record.exception_address);
MinidumpContext* md_context = md_exception->GetContext();
ASSERT_TRUE(md_context != NULL);
ASSERT_EQ((uint32_t) MD_CONTEXT_MIPS, md_context->GetContextCPU());
const MDRawContextMIPS* md_raw_context = md_context->GetContextMIPS();
ASSERT_TRUE(md_raw_context != NULL);
ASSERT_EQ((uint32_t) MD_CONTEXT_MIPS_INTEGER,
(md_raw_context->context_flags & MD_CONTEXT_MIPS_INTEGER));
EXPECT_EQ(0x3ecba80dU, raw_context.iregs[0]);
EXPECT_EQ(0x382583b9U, raw_context.iregs[1]);
EXPECT_EQ(0x7fccc03fU, raw_context.iregs[2]);
EXPECT_EQ(0xf62f8ec2U, raw_context.iregs[3]);
EXPECT_EQ(0x46a6a6a8U, raw_context.iregs[4]);
EXPECT_EQ(0x6a5025e2U, raw_context.iregs[5]);
EXPECT_EQ(0xd9fabb4aU, raw_context.iregs[6]);
EXPECT_EQ(0x6913f540U, raw_context.iregs[7]);
EXPECT_EQ(0xbffe6edaU, raw_context.iregs[8]);
EXPECT_EQ(0xb2ce1e2dU, raw_context.iregs[9]);
EXPECT_EQ(0x659caaa4U, raw_context.iregs[10]);
EXPECT_EQ(0xf0e0d0c0U, raw_context.iregs[11]);
EXPECT_EQ(0xa9b8c7d6U, raw_context.iregs[12]);
EXPECT_EQ(0x12345678U, raw_context.iregs[13]);
EXPECT_EQ(0xabcd1234U, raw_context.iregs[14]);
EXPECT_EQ(0x10203040U, raw_context.iregs[15]);
EXPECT_EQ(0xa80d3ecbU, raw_context.iregs[16]);
EXPECT_EQ(0x83b93825U, raw_context.iregs[17]);
EXPECT_EQ(0xc03f7fccU, raw_context.iregs[18]);
EXPECT_EQ(0x8ec2f62fU, raw_context.iregs[19]);
EXPECT_EQ(0xa6a846a6U, raw_context.iregs[20]);
EXPECT_EQ(0x25e26a50U, raw_context.iregs[21]);
EXPECT_EQ(0xbb4ad9faU, raw_context.iregs[22]);
EXPECT_EQ(0xf5406913U, raw_context.iregs[23]);
EXPECT_EQ(0x6edabffeU, raw_context.iregs[24]);
EXPECT_EQ(0x1e2db2ceU, raw_context.iregs[25]);
EXPECT_EQ(0xaaa4659cU, raw_context.iregs[26]);
EXPECT_EQ(0xd0c0f0e0U, raw_context.iregs[27]);
EXPECT_EQ(0xc7d6a9b8U, raw_context.iregs[28]);
EXPECT_EQ(0x56781234U, raw_context.iregs[29]);
EXPECT_EQ(0x1234abcdU, raw_context.iregs[30]);
EXPECT_EQ(0x30401020U, raw_context.iregs[31]);
}
} // namespace

7
src/processor/stackwalker.cc
View file

@ -53,6 +53,7 @@
#include "processor/stackwalker_x86.h"
#include "processor/stackwalker_amd64.h"
#include "processor/stackwalker_arm.h"
#include "processor/stackwalker_mips.h"
namespace google_breakpad {
@ -231,6 +232,12 @@ Stackwalker* Stackwalker::StackwalkerForCPU(
memory, modules, frame_symbolizer);
break;
case MD_CONTEXT_MIPS:
cpu_stackwalker = new StackwalkerMIPS(system_info,
context->GetContextMIPS(),
memory, modules, frame_symbolizer);
break;
case MD_CONTEXT_ARM:
int fp_register = -1;
if (system_info->os_short == "ios")

300
src/processor/stackwalker_mips.cc Normal file
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@ -0,0 +1,300 @@
// Copyright (c) 2013 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.
// stackwalker_mips.cc: MIPS-specific stackwalker.
//
// See stackwalker_mips.h for documentation.
//
// Author: Tata Elxsi
#include "common/scoped_ptr.h"
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/code_modules.h"
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/source_line_resolver_interface.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/cfi_frame_info.h"
#include "processor/logging.h"
#include "processor/postfix_evaluator-inl.h"
#include "processor/stackwalker_mips.h"
#include "processor/windows_frame_info.h"
#include "google_breakpad/common/minidump_cpu_mips.h"
namespace google_breakpad {
StackwalkerMIPS::StackwalkerMIPS(const SystemInfo* system_info,
const MDRawContextMIPS* context,
MemoryRegion* memory,
const CodeModules* modules,
StackFrameSymbolizer* resolver_helper)
: Stackwalker(system_info, memory, modules, resolver_helper),
context_(context) {
if (memory_ && memory_->GetBase() + memory_->GetSize() - 1 > 0xffffffff) {
BPLOG(ERROR) << "Memory out of range for stackwalking: "
<< HexString(memory_->GetBase())
<< "+"
<< HexString(memory_->GetSize());
memory_ = NULL;
}
}
StackFrame* StackwalkerMIPS::GetContextFrame() {
if (!context_) {
BPLOG(ERROR) << "Can't get context frame without context.";
return NULL;
}
StackFrameMIPS* frame = new StackFrameMIPS();
// The instruction pointer is stored directly in a register, so pull it
// straight out of the CPU context structure.
frame->context = *context_;
frame->context_validity = StackFrameMIPS::CONTEXT_VALID_ALL;
frame->trust = StackFrame::FRAME_TRUST_CONTEXT;
frame->instruction = frame->context.epc;
return frame;
}
// Register names for mips.
static const char* const kRegisterNames[] = {
"$zero", "$at", "$v0", "$v1", "$a0", "$a1", "$a2", "$a3", "$to", "$t1",
"$t2", "$t3", "$t4", "$t5", "$t6", "$t7", "$s0", "$s1", "$s2", "$s3",
"$s4", "$s5", "$s6", "$s7", "$t8", "$t9", "$k0", "$k1", "$gp", "$sp",
"$fp", "$ra", NULL
// TODO(gordanac): add float point save registers
};
StackFrameMIPS* StackwalkerMIPS::GetCallerByCFIFrameInfo(
const vector<StackFrame*>& frames,
CFIFrameInfo* cfi_frame_info) {
StackFrameMIPS* last_frame = static_cast<StackFrameMIPS*>(frames.back());
unsigned long sp = 0, pc = 0;
// Populate a dictionary with the valid register values in last_frame.
CFIFrameInfo::RegisterValueMap<uint32_t> callee_registers;
// Use the STACK CFI data to recover the caller's register values.
CFIFrameInfo::RegisterValueMap<uint32_t> caller_registers;
for (int i = 0; kRegisterNames[i]; ++i) {
caller_registers[kRegisterNames[i]] = last_frame->context.iregs[i];
callee_registers[kRegisterNames[i]] = last_frame->context.iregs[i];
}
if (!cfi_frame_info->FindCallerRegs(callee_registers, *memory_,
&caller_registers)) {
return NULL;
}
CFIFrameInfo::RegisterValueMap<uint32_t>::const_iterator entry =
caller_registers.find(".cfa");
if (entry != caller_registers.end()) {
sp = entry->second;
caller_registers["$sp"] = entry->second;
}
entry = caller_registers.find(".ra");
if (entry != caller_registers.end()) {
caller_registers["$ra"] = entry->second;
pc = entry->second - 2 * sizeof(pc);
}
caller_registers["$pc"] = pc;
// Construct a new stack frame given the values the CFI recovered.
scoped_ptr<StackFrameMIPS> frame(new StackFrameMIPS());
for (int i = 0; kRegisterNames[i]; ++i) {
CFIFrameInfo::RegisterValueMap<uint32_t>::const_iterator caller_entry =
caller_registers.find(kRegisterNames[i]);
if (caller_entry != caller_registers.end()) {
// The value of this register is recovered; fill the context with the
// value from caller_registers.
frame->context.iregs[i] = caller_entry->second;
frame->context_validity |= StackFrameMIPS::RegisterValidFlag(i);
} else if ((i >= INDEX_MIPS_REG_S0 && i <= INDEX_MIPS_REG_S7 ||
i > INDEX_MIPS_REG_GP && i < INDEX_MIPS_REG_RA) &&
(last_frame->context_validity &
StackFrameMIPS::RegisterValidFlag(i))) {
// If the STACK CFI data doesn't mention some callee-save register, and
// it is valid in the callee, assume the callee has not yet changed it.
// Calee-save registers according to the MIPS o32 ABI specification are:
// $s0 to $s7
// $sp, $s8
frame->context.iregs[i] = last_frame->context.iregs[i];
frame->context_validity |= StackFrameMIPS::RegisterValidFlag(i);
}
}
frame->context.epc = caller_registers["$pc"];
frame->instruction = caller_registers["$pc"];
frame->context_validity |= StackFrameMIPS::CONTEXT_VALID_PC;
frame->context.iregs[MD_CONTEXT_MIPS_REG_RA] = caller_registers["$ra"];
frame->context_validity |= StackFrameMIPS::CONTEXT_VALID_RA;
frame->trust = StackFrame::FRAME_TRUST_CFI;
return frame.release();
}
StackFrame* StackwalkerMIPS::GetCallerFrame(const CallStack* stack,
bool stack_scan_allowed) {
if (!memory_ || !stack) {
BPLOG(ERROR) << "Can't get caller frame without memory or stack";
return NULL;
}
const vector<StackFrame*>& frames = *stack->frames();
StackFrameMIPS* last_frame = static_cast<StackFrameMIPS*>(frames.back());
scoped_ptr<StackFrameMIPS> new_frame;
// See if there is DWARF call frame information covering this address.
scoped_ptr<CFIFrameInfo> cfi_frame_info(
frame_symbolizer_->FindCFIFrameInfo(last_frame));
if (cfi_frame_info.get())
new_frame.reset(GetCallerByCFIFrameInfo(frames, cfi_frame_info.get()));
// If caller frame is not found in CFI try analyzing the stack.
if (stack_scan_allowed && !new_frame.get()) {
new_frame.reset(GetCallerByStackScan(frames));
}
// If nothing worked, tell the caller.
if (!new_frame.get()) {
return NULL;
}
// Treat an instruction address of 0 as end-of-stack.
if (new_frame->context.epc == 0) {
return NULL;
}
// If the new stack pointer is at a lower address than the old, then
// that's clearly incorrect. Treat this as end-of-stack to enforce
// progress and avoid infinite loops.
if (new_frame->context.iregs[MD_CONTEXT_MIPS_REG_SP] <=
last_frame->context.iregs[MD_CONTEXT_MIPS_REG_SP]) {
return NULL;
}
return new_frame.release();
}
StackFrameMIPS* StackwalkerMIPS::GetCallerByStackScan(
const vector<StackFrame*>& frames) {
const uint32_t kMaxFrameStackSize = 1024;
const uint32_t kMinArgsOnStack = 4;
StackFrameMIPS* last_frame = static_cast<StackFrameMIPS*>(frames.back());
uint32_t last_sp = last_frame->context.iregs[MD_CONTEXT_MIPS_REG_SP];
uint32_t caller_pc, caller_sp, caller_fp;
// Return address cannot be obtained directly.
// Force stackwalking.
// We cannot use frame pointer to get the return address.
// We'll scan the stack for a
// return address. This can happen if last_frame is executing code
// for a module for which we don't have symbols.
int count = kMaxFrameStackSize / sizeof(caller_pc);
if (frames.size() > 1) {
// In case of mips32 ABI stack frame of a nonleaf function
// must have minimum stack frame assigned for 4 arguments (4 words).
// Move stack pointer for 4 words to avoid reporting non-existing frames
// for all frames except the topmost one.
// There is no way of knowing if topmost frame belongs to a leaf or
// a nonleaf function.
last_sp += kMinArgsOnStack * sizeof(caller_pc);
// Adjust 'count' so that return address is scanned only in limits
// of one stack frame.
count -= kMinArgsOnStack;
}
do {
// Scanning for return address from stack pointer of the last frame.
if (!ScanForReturnAddress(last_sp, &caller_sp, &caller_pc, count)) {
// If we can't find an instruction pointer even with stack scanning,
// give up.
BPLOG(ERROR) << " ScanForReturnAddress failed ";
return NULL;
}
// Get $fp stored in the stack frame.
if (!memory_->GetMemoryAtAddress(caller_sp - sizeof(caller_pc),
&caller_fp)) {
BPLOG(INFO) << " GetMemoryAtAddress for fp failed " ;
return NULL;
}
count = count - (caller_sp - last_sp) / sizeof(caller_pc);
// Now scan the next address in the stack.
last_sp = caller_sp + sizeof(caller_pc);
} while ((caller_fp - caller_sp >= kMaxFrameStackSize) && count > 0);
if (!count) {
BPLOG(INFO) << " No frame found " ;
return NULL;
}
// ScanForReturnAddress found a reasonable return address. Advance
// $sp to the location above the one where the return address was
// found.
caller_sp += sizeof(caller_pc);
// caller_pc is actually containing $ra value;
// $pc is two instructions before $ra,
// so the caller_pc needs to be decremented accordingly.
caller_pc -= 2 * sizeof(caller_pc);
// Create a new stack frame (ownership will be transferred to the caller)
// and fill it in.
StackFrameMIPS* frame = new StackFrameMIPS();
frame->trust = StackFrame::FRAME_TRUST_SCAN;
frame->context = last_frame->context;
frame->context.epc = caller_pc;
frame->context_validity |= StackFrameMIPS::CONTEXT_VALID_PC;
frame->instruction = caller_pc;
frame->context.iregs[MD_CONTEXT_MIPS_REG_SP] = caller_sp;
frame->context_validity |= StackFrameMIPS::CONTEXT_VALID_SP;
frame->context.iregs[MD_CONTEXT_MIPS_REG_FP] = caller_fp;
frame->context_validity |= StackFrameMIPS::CONTEXT_VALID_FP;
frame->context.iregs[MD_CONTEXT_MIPS_REG_RA] =
caller_pc + 2 * sizeof(caller_pc);
frame->context_validity |= StackFrameMIPS::CONTEXT_VALID_RA;
return frame;
}
} // namespace google_breakpad

85
src/processor/stackwalker_mips.h Normal file
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@ -0,0 +1,85 @@
// Copyright (c) 2013 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.
// stackwalker_mips.h: MIPS-specific stackwalker.
//
// Provides stack frames given MIPS register context and a memory region
// corresponding to a MIPSstack.
//
// Author: Tata Elxsi
#ifndef PROCESSOR_STACKWALKER_MIPS_H__
#define PROCESSOR_STACKWALKER_MIPS_H__
#include "google_breakpad/common/breakpad_types.h"
#include "google_breakpad/common/minidump_format.h"
#include "google_breakpad/processor/stackwalker.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/cfi_frame_info.h"
namespace google_breakpad {
class CodeModules;
class StackwalkerMIPS : public Stackwalker {
public:
// Context is a MIPS context object that gives access to mips-specific
// register state corresponding to the innermost called frame to be
// included in the stack. The other arguments are passed directly
// through to the base Stackwalker constructor.
StackwalkerMIPS(const SystemInfo* system_info,
const MDRawContextMIPS* context,
MemoryRegion* memory,
const CodeModules* modules,
StackFrameSymbolizer* frame_symbolizer);
private:
// Implementation of Stackwalker, using mips context and stack conventions.
virtual StackFrame* GetContextFrame();
virtual StackFrame* GetCallerFrame(const CallStack* stack,
bool stack_scan_allowed);
// Use cfi_frame_info (derived from STACK CFI records) to construct
// the frame that called frames.back(). The caller takes ownership
// of the returned frame. Return NULL on failure.
StackFrameMIPS* GetCallerByCFIFrameInfo(const vector<StackFrame*>& frames,
CFIFrameInfo* cfi_frame_info);
// Scan the stack for plausible return address and frame pointer pair.
// The caller takes ownership of the returned frame. Return NULL on failure.
StackFrameMIPS* GetCallerByStackScan(const vector<StackFrame*>& frames);
// Stores the CPU context corresponding to the innermost stack frame to
// be returned by GetContextFrame.
const MDRawContextMIPS* context_;
};
} // namespace google_breakpad
#endif // PROCESSOR_STACKWALKER_MIPS_H__

697
src/processor/stackwalker_mips_unittest.cc Normal file
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@ -0,0 +1,697 @@
// Copyright (c) 2013, 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: Gordana Cmiljanovic <gordana.cmiljanovic@imgtec.com>
// stackwalker_mips_unittest.cc: Unit tests for StackwalkerMIPS class.
#include <string.h>
#include <string>
#include <vector>
#include "breakpad_googletest_includes.h"
#include "common/test_assembler.h"
#include "common/using_std_string.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/code_module.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_mips.h"
#include "processor/windows_frame_info.h"
using google_breakpad::BasicSourceLineResolver;
using google_breakpad::CallStack;
using google_breakpad::CodeModule;
using google_breakpad::StackFrameSymbolizer;
using google_breakpad::StackFrame;
using google_breakpad::StackFrameMIPS;
using google_breakpad::Stackwalker;
using google_breakpad::StackwalkerMIPS;
using google_breakpad::SystemInfo;
using google_breakpad::WindowsFrameInfo;
using google_breakpad::test_assembler::kLittleEndian;
using google_breakpad::test_assembler::Label;
using google_breakpad::test_assembler::Section;
using std::vector;
using testing::_;
using testing::AnyNumber;
using testing::Return;
using testing::SetArgumentPointee;
using testing::Test;
class StackwalkerMIPSFixture {
public:
StackwalkerMIPSFixture()
: stack_section(kLittleEndian),
// Give the two modules reasonable standard locations and names
// for tests to play with.
module1(0x00400000, 0x10000, "module1", "version1"),
module2(0x00500000, 0x10000, "module2", "version2") {
// Identify the system as a Linux system.
system_info.os = "Linux";
system_info.os_short = "linux";
system_info.os_version = "Observant Opossum"; // Jealous Jellyfish
system_info.cpu = "mips";
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, GetCStringSymbolData(_, _, _, _, _))
.WillRepeatedly(Return(MockSymbolSupplier::NOT_FOUND));
// Avoid GMOCK WARNING "Uninteresting mock function call - returning
// directly" for FreeSymbolData().
EXPECT_CALL(supplier, FreeSymbolData(_)).Times(AnyNumber());
// Reset max_frames_scanned since it's static.
Stackwalker::set_max_frames_scanned(1024);
}
// Set the Breakpad symbol information that supplier should return for
// MODULE to INFO.
void SetModuleSymbols(MockCodeModule* module, const string& info) {
size_t buffer_size;
char* buffer = supplier.CopySymbolDataAndOwnTheCopy(info, &buffer_size);
EXPECT_CALL(supplier, GetCStringSymbolData(module, &system_info, _, _, _))
.WillRepeatedly(DoAll(SetArgumentPointee<3>(buffer),
SetArgumentPointee<4>(buffer_size),
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(MDRawContextMIPS* raw_context) {
uint8_t x = 173;
for (size_t i = 0; i < sizeof(*raw_context); ++i)
reinterpret_cast<uint8_t*>(raw_context)[i] = (x += 17);
}
SystemInfo system_info;
MDRawContextMIPS 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 SanityCheck: public StackwalkerMIPSFixture, public Test { };
TEST_F(SanityCheck, NoResolver) {
stack_section.start() = 0x80000000;
stack_section.D32(0).D32(0x0);
RegionFromSection();
raw_context.epc = 0x00400020;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
StackFrameSymbolizer frame_symbolizer(NULL, NULL);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
// This should succeed, even without a resolver or supplier.
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(1U, modules_without_symbols.size());
ASSERT_EQ("module1", modules_without_symbols[0]->debug_file());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(1U, frames->size());
StackFrameMIPS* frame = static_cast<StackFrameMIPS*>(frames->at(0));
// Check that the values from the original raw context made it
// through to the context in the stack frame.
EXPECT_EQ(0, memcmp(&raw_context, &frame->context, sizeof(raw_context)));
}
class GetContextFrame: public StackwalkerMIPSFixture, public Test { };
TEST_F(GetContextFrame, Simple) {
stack_section.start() = 0x80000000;
stack_section.D32(0).D32(0x0);
RegionFromSection();
raw_context.epc = 0x00400020;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(1U, modules_without_symbols.size());
ASSERT_EQ("module1", modules_without_symbols[0]->debug_file());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
StackFrameMIPS* frame = static_cast<StackFrameMIPS*>(frames->at(0));
// Check that the values from the original raw context made it
// through to the context in the stack frame.
EXPECT_EQ(0, memcmp(&raw_context, &frame->context, sizeof(raw_context)));
}
// The stackwalker should be able to produce the context frame even
// without stack memory present.
TEST_F(GetContextFrame, NoStackMemory) {
raw_context.epc = 0x00400020;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, NULL, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(1U, modules_without_symbols.size());
ASSERT_EQ("module1", modules_without_symbols[0]->debug_file());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
StackFrameMIPS* frame = static_cast<StackFrameMIPS*>(frames->at(0));
// Check that the values from the original raw context made it
// through to the context in the stack frame.
EXPECT_EQ(0, memcmp(&raw_context, &frame->context, sizeof(raw_context)));
}
class GetCallerFrame: public StackwalkerMIPSFixture, public Test { };
TEST_F(GetCallerFrame, ScanWithoutSymbols) {
// When the stack walker resorts to scanning the stack,
// only addresses located within loaded modules are
// considered valid return addresses.
// Force scanning through three frames to ensure that the
// stack pointer is set properly in scan-recovered frames.
stack_section.start() = 0x80000000;
uint32_t return_address1 = 0x00400100;
uint32_t return_address2 = 0x00400900;
Label frame1_sp, frame2_sp;
stack_section
// frame 0
.Append(16, 0) // space
.D32(0x00490000) // junk that's not
.D32(0x00600000) // a return address
.D32(frame1_sp) // stack pointer
.D32(return_address1) // actual return address
// frame 1
.Mark(&frame1_sp)
.Append(16, 0) // space
.D32(0xF0000000) // more junk
.D32(0x0000000D)
.D32(frame2_sp) // stack pointer
.D32(return_address2) // actual return address
// frame 2
.Mark(&frame2_sp)
.Append(32, 0); // end of stack
RegionFromSection();
raw_context.epc = 0x00405510;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = stack_section.start().Value();
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = return_address1;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(1U, modules_without_symbols.size());
ASSERT_EQ("module1", modules_without_symbols[0]->debug_file());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(3U, frames->size());
StackFrameMIPS* frame0 = static_cast<StackFrameMIPS*>(frames->at(0));
EXPECT_EQ(StackFrame::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameMIPS::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0, memcmp(&raw_context, &frame0->context, sizeof(raw_context)));
StackFrameMIPS* frame1 = static_cast<StackFrameMIPS*>(frames->at(1));
EXPECT_EQ(StackFrame::FRAME_TRUST_SCAN, frame1->trust);
ASSERT_EQ((StackFrameMIPS::CONTEXT_VALID_PC |
StackFrameMIPS::CONTEXT_VALID_SP |
StackFrameMIPS::CONTEXT_VALID_FP |
StackFrameMIPS::CONTEXT_VALID_RA),
frame1->context_validity);
EXPECT_EQ(return_address1 - 2 * sizeof(return_address1), frame1->context.epc);
EXPECT_EQ(frame1_sp.Value(), frame1->context.iregs[MD_CONTEXT_MIPS_REG_SP]);
StackFrameMIPS* frame2 = static_cast<StackFrameMIPS*>(frames->at(2));
EXPECT_EQ(StackFrame::FRAME_TRUST_SCAN, frame2->trust);
ASSERT_EQ((StackFrameMIPS::CONTEXT_VALID_PC |
StackFrameMIPS::CONTEXT_VALID_SP |
StackFrameMIPS::CONTEXT_VALID_FP |
StackFrameMIPS::CONTEXT_VALID_RA),
frame2->context_validity);
EXPECT_EQ(return_address2 - 2 * sizeof(return_address2), frame2->context.epc);
EXPECT_EQ(frame2_sp.Value(), frame2->context.iregs[MD_CONTEXT_MIPS_REG_SP]);
}
TEST_F(GetCallerFrame, ScanWithFunctionSymbols) {
// During stack scanning, if a potential return address
// is located within a loaded module that has symbols,
// it is only considered a valid return address if it
// lies within a function's bounds.
stack_section.start() = 0x80000000;
uint32_t return_address = 0x00500200;
Label frame1_sp;
stack_section
// frame 0
.Append(16, 0) // space
.D32(0x00490000) // junk that's not
.D32(0x00600000) // a return address
.D32(0x00401000) // a couple of plausible addresses
.D32(0x0050F000) // that are not within functions
.D32(frame1_sp) // stack pointer
.D32(return_address) // actual return address
// frame 1
.Mark(&frame1_sp)
.Append(32, 0); // end of stack
RegionFromSection();
raw_context.epc = 0x00400200;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = stack_section.start().Value();
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = return_address;
SetModuleSymbols(&module1,
// The youngest frame's function.
"FUNC 100 400 10 monotreme\n");
SetModuleSymbols(&module2,
// The calling frame's function.
"FUNC 100 400 10 marsupial\n");
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(0U, modules_without_symbols.size());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameMIPS* frame0 = static_cast<StackFrameMIPS*>(frames->at(0));
EXPECT_EQ(StackFrame::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameMIPS::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0, memcmp(&raw_context, &frame0->context, sizeof(raw_context)));
EXPECT_EQ("monotreme", frame0->function_name);
EXPECT_EQ(0x00400100U, frame0->function_base);
StackFrameMIPS* frame1 = static_cast<StackFrameMIPS*>(frames->at(1));
EXPECT_EQ(StackFrame::FRAME_TRUST_SCAN, frame1->trust);
ASSERT_EQ((StackFrameMIPS::CONTEXT_VALID_PC |
StackFrameMIPS::CONTEXT_VALID_SP |
StackFrameMIPS::CONTEXT_VALID_FP |
StackFrameMIPS::CONTEXT_VALID_RA),
frame1->context_validity);
EXPECT_EQ(return_address - 2 * sizeof(return_address), frame1->context.epc);
EXPECT_EQ(frame1_sp.Value(), frame1->context.iregs[MD_CONTEXT_MIPS_REG_SP]);
EXPECT_EQ("marsupial", frame1->function_name);
EXPECT_EQ(0x00500100U, frame1->function_base);
}
TEST_F(GetCallerFrame, CheckStackFrameSizeLimit) {
// If the stackwalker resorts to stack scanning, it will scan only
// 1024 bytes of stack which correspondes to maximum size of stack frame.
stack_section.start() = 0x80000000;
uint32_t return_address1 = 0x00500100;
uint32_t return_address2 = 0x00500900;
Label frame1_sp, frame2_sp;
stack_section
// frame 0
.Append(32, 0) // space
.D32(0x00490000) // junk that's not
.D32(0x00600000) // a return address
.Append(96, 0) // more space
.D32(frame1_sp) // stack pointer
.D32(return_address1) // actual return address
// frame 1
.Mark(&frame1_sp)
.Append(128 * 4, 0) // space
.D32(0x00F00000) // more junk
.D32(0x0000000D)
.Append(128 * 4, 0) // more space
.D32(frame2_sp) // stack pointer
.D32(return_address2) // actual return address
// (won't be found)
// frame 2
.Mark(&frame2_sp)
.Append(32, 0); // end of stack
RegionFromSection();
raw_context.epc = 0x00405510;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = stack_section.start().Value();
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = return_address1;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(2U, modules_without_symbols.size());
ASSERT_EQ("module1", modules_without_symbols[0]->debug_file());
ASSERT_EQ("module2", modules_without_symbols[1]->debug_file());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameMIPS* frame0 = static_cast<StackFrameMIPS*>(frames->at(0));
EXPECT_EQ(StackFrame::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameMIPS::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0, memcmp(&raw_context, &frame0->context, sizeof(raw_context)));
StackFrameMIPS* frame1 = static_cast<StackFrameMIPS*>(frames->at(1));
EXPECT_EQ(StackFrame::FRAME_TRUST_SCAN, frame1->trust);
ASSERT_EQ((StackFrameMIPS::CONTEXT_VALID_PC |
StackFrameMIPS::CONTEXT_VALID_SP |
StackFrameMIPS::CONTEXT_VALID_FP |
StackFrameMIPS::CONTEXT_VALID_RA),
frame1->context_validity);
EXPECT_EQ(return_address1 - 2 * sizeof(return_address1), frame1->context.epc);
EXPECT_EQ(frame1_sp.Value(), frame1->context.iregs[MD_CONTEXT_MIPS_REG_SP]);
}
// Test that set_max_frames_scanned prevents using stack scanning
// to find caller frames.
TEST_F(GetCallerFrame, ScanningNotAllowed) {
// When the stack walker resorts to scanning the stack,
// only fixed number of frames are allowed to be scanned out from stack
stack_section.start() = 0x80000000;
uint32_t return_address1 = 0x00500100;
uint32_t return_address2 = 0x00500900;
Label frame1_sp, frame2_sp;
stack_section
// frame 0
.Append(32, 0) // space
.D32(0x00490000) // junk that's not
.D32(0x00600000) // a return address
.Append(96, 0) // more space
.D32(frame1_sp) // stack pointer
.D32(return_address1) // actual return address
// frame 1
.Mark(&frame1_sp)
.Append(128 * 4, 0) // space
.D32(0x00F00000) // more junk
.D32(0x0000000D)
.Append(128 * 4, 0) // more space
.D32(frame2_sp) // stack pointer
.D32(return_address2) // actual return address
// (won't be found)
// frame 2
.Mark(&frame2_sp)
.Append(32, 0); // end of stack
RegionFromSection();
raw_context.epc = 0x00405510;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = stack_section.start().Value();
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = return_address1;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
Stackwalker::set_max_frames_scanned(0);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(1U, modules_without_symbols.size());
ASSERT_EQ("module1", modules_without_symbols[0]->debug_file());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(1U, frames->size());
StackFrameMIPS* frame0 = static_cast<StackFrameMIPS*>(frames->at(0));
EXPECT_EQ(StackFrame::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameMIPS::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ(0, memcmp(&raw_context, &frame0->context, sizeof(raw_context)));
}
struct CFIFixture: public StackwalkerMIPSFixture {
CFIFixture() {
// Provide some STACK CFI records;
SetModuleSymbols(&module1,
// The youngest frame's function.
"FUNC 4000 1000 0 enchiridion\n"
// Initially, nothing has been pushed on the stack,
// and the return address is still in the $ra register.
"STACK CFI INIT 4000 1000 .cfa: $sp 0 + .ra: $ra\n"
// Move stack pointer.
"STACK CFI 4004 .cfa: $sp 32 +\n"
// store $fp and ra
"STACK CFI 4008 $fp: .cfa -8 + ^ .ra: .cfa -4 + ^\n"
// restore $fp
"STACK CFI 400c .cfa: $fp 32 +\n"
// restore $sp
"STACK CFI 4018 .cfa: $sp 32 +\n"
"STACK CFI 4020 $fp: $fp .cfa: $sp 0 + .ra: .ra\n"
// The calling function.
"FUNC 5000 1000 0 epictetus\n"
// Initially, nothing has been pushed on the stack,
// and the return address is still in the $ra register.
"STACK CFI INIT 5000 1000 .cfa: $sp .ra: $ra\n"
// Mark it as end of stack.
"STACK CFI INIT 5000 8 .cfa: $sp 0 + .ra: $ra\n"
// A function whose CFI makes the stack pointer
// go backwards.
"FUNC 6000 1000 20 palinal\n"
"STACK CFI INIT 6000 1000 .cfa: $sp 4 - .ra: $ra\n"
// A function with CFI expressions that can't be
// evaluated.
"FUNC 7000 1000 20 rhetorical\n"
"STACK CFI INIT 7000 1000 .cfa: moot .ra: ambiguous\n"
);
// Provide some distinctive values for the caller's registers.
expected.epc = 0x00405508;
expected.iregs[MD_CONTEXT_MIPS_REG_S0] = 0x0;
expected.iregs[MD_CONTEXT_MIPS_REG_S1] = 0x1;
expected.iregs[MD_CONTEXT_MIPS_REG_S2] = 0x2;
expected.iregs[MD_CONTEXT_MIPS_REG_S3] = 0x3;
expected.iregs[MD_CONTEXT_MIPS_REG_S4] = 0x4;
expected.iregs[MD_CONTEXT_MIPS_REG_S5] = 0x5;
expected.iregs[MD_CONTEXT_MIPS_REG_S6] = 0x6;
expected.iregs[MD_CONTEXT_MIPS_REG_S7] = 0x7;
expected.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
expected.iregs[MD_CONTEXT_MIPS_REG_FP] = 0x80000000;
expected.iregs[MD_CONTEXT_MIPS_REG_RA] = 0x00405510;
// Expect CFI to recover all callee-save registers. Since CFI is the
// only stack frame construction technique we have, aside from the
// context frame itself, there's no way for us to have a set of valid
// registers smaller than this.
expected_validity = (StackFrameMIPS::CONTEXT_VALID_PC |
StackFrameMIPS::CONTEXT_VALID_S0 |
StackFrameMIPS::CONTEXT_VALID_S1 |
StackFrameMIPS::CONTEXT_VALID_S2 |
StackFrameMIPS::CONTEXT_VALID_S3 |
StackFrameMIPS::CONTEXT_VALID_S4 |
StackFrameMIPS::CONTEXT_VALID_S5 |
StackFrameMIPS::CONTEXT_VALID_S6 |
StackFrameMIPS::CONTEXT_VALID_S7 |
StackFrameMIPS::CONTEXT_VALID_SP |
StackFrameMIPS::CONTEXT_VALID_FP |
StackFrameMIPS::CONTEXT_VALID_RA);
// By default, context frames provide all registers, as normal.
context_frame_validity = StackFrameMIPS::CONTEXT_VALID_ALL;
// By default, registers are unchanged.
raw_context = expected;
}
// Walk the stack, using stack_section as the contents of the stack
// and raw_context as the current register values. (Set the stack
// pointer to the stack's starting address.) Expect two stack
// frames; in the older frame, expect the callee-saves registers to
// have values matching those in 'expected'.
void CheckWalk() {
RegionFromSection();
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = stack_section.start().Value();
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region,
&modules, &frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(0U, modules_without_symbols.size());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(2U, frames->size());
StackFrameMIPS* frame0 = static_cast<StackFrameMIPS*>(frames->at(0));
EXPECT_EQ(StackFrame::FRAME_TRUST_CONTEXT, frame0->trust);
ASSERT_EQ(StackFrameMIPS::CONTEXT_VALID_ALL, frame0->context_validity);
EXPECT_EQ("enchiridion", frame0->function_name);
EXPECT_EQ(0x00404000U, frame0->function_base);
StackFrameMIPS* frame1 = static_cast<StackFrameMIPS*>(frames->at(1));
EXPECT_EQ(StackFrame::FRAME_TRUST_CFI, frame1->trust);
ASSERT_EQ(expected_validity, frame1->context_validity);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S0],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S0]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S1],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S1]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S2],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S2]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S3],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S3]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S4],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S4]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S5],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S5]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S6],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S6]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_S7],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_S7]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_FP],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_FP]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_RA],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_RA]);
EXPECT_EQ(expected.iregs[MD_CONTEXT_MIPS_REG_SP],
frame1->context.iregs[MD_CONTEXT_MIPS_REG_SP]);
EXPECT_EQ(expected.epc, frame1->context.epc);
EXPECT_EQ(expected.epc, frame1->instruction);
EXPECT_EQ("epictetus", frame1->function_name);
EXPECT_EQ(0x00405000U, frame1->function_base);
}
// The values we expect to find for the caller's registers.
MDRawContextMIPS expected;
// The validity mask for expected.
int expected_validity;
// The validity mask to impose on the context frame.
int context_frame_validity;
};
class CFI: public CFIFixture, public Test { };
// TODO(gordanac): add CFI tests
TEST_F(CFI, At4004) {
Label frame1_sp = expected.iregs[MD_CONTEXT_MIPS_REG_SP];
stack_section
// frame0
.Append(24, 0) // space
.D32(frame1_sp) // stack pointer
.D32(0x00405510) // return address
.Mark(&frame1_sp); // This effectively sets stack_section.start().
raw_context.epc = 0x00404004;
CheckWalk();
}
// Check that we reject rules that would cause the stack pointer to
// move in the wrong direction.
TEST_F(CFI, RejectBackwards) {
raw_context.epc = 0x40005000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = 0x00405510;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(0U, modules_without_symbols.size());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(1U, frames->size());
}
// Check that we reject rules whose expressions' evaluation fails.
TEST_F(CFI, RejectBadExpressions) {
raw_context.epc = 0x00407000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = 0x00405510;
StackFrameSymbolizer frame_symbolizer(&supplier, &resolver);
StackwalkerMIPS walker(&system_info, &raw_context, &stack_region, &modules,
&frame_symbolizer);
vector<const CodeModule*> modules_without_symbols;
vector<const CodeModule*> modules_with_corrupt_symbols;
ASSERT_TRUE(walker.Walk(&call_stack, &modules_without_symbols,
&modules_with_corrupt_symbols));
ASSERT_EQ(0U, modules_without_symbols.size());
ASSERT_EQ(0U, modules_with_corrupt_symbols.size());
frames = call_stack.frames();
ASSERT_EQ(1U, frames->size());
}

36
src/processor/synth_minidump.cc
View file

@ -195,6 +195,42 @@ Context::Context(const Dump &dump, const MDRawContextARM &context)
assert(Size() == sizeof(MDRawContextARM));
}
Context::Context(const Dump &dump, const MDRawContextMIPS &context)
: Section(dump) {
// The caller should have properly set the CPU type flag.
assert(context.context_flags & MD_CONTEXT_MIPS);
D32(context.context_flags);
D32(context._pad0);
for (int i = 0; i < MD_CONTEXT_MIPS_GPR_COUNT; ++i)
D64(context.iregs[i]);
D64(context.mdhi);
D64(context.mdlo);
for (int i = 0; i < MD_CONTEXT_MIPS_DSP_COUNT; ++i)
D32(context.hi[i]);
for (int i = 0; i < MD_CONTEXT_MIPS_DSP_COUNT; ++i)
D32(context.lo[i]);
D32(context.dsp_control);
D32(context._pad1);
D64(context.epc);
D64(context.badvaddr);
D32(context.status);
D32(context.cause);
for (int i = 0; i < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT; ++i)
D64(context.float_save.regs[i]);
D32(context.float_save.fpcsr);
D32(context.float_save.fir);
assert(Size() == sizeof(MDRawContextMIPS));
}
Thread::Thread(const Dump &dump,
uint32_t thread_id, const Memory &stack, const Context &context,
uint32_t suspend_count, uint32_t priority_class,

1
src/processor/synth_minidump.h
View file

@ -228,6 +228,7 @@ class Context: public Section {
// Create a context belonging to DUMP whose contents are a copy of CONTEXT.
Context(const Dump &dump, const MDRawContextX86 &context);
Context(const Dump &dump, const MDRawContextARM &context);
Context(const Dump &dump, const MDRawContextMIPS &context);
// Add an empty context to the dump.
Context(const Dump &dump) : Section(dump) {}
// Add constructors for other architectures here. Remember to byteswap.

32
src/tools/linux/md2core/minidump-2-core.cc
View file

@ -202,7 +202,7 @@ struct CrashedProcess {
struct Thread {
pid_t tid;
user_regs_struct regs;
#if defined(__i386__) || defined(__x86_64__)
#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
user_fpregs_struct fpregs;
#endif
#if defined(__i386__)
@ -357,6 +357,28 @@ ParseThreadRegisters(CrashedProcess::Thread* thread,
thread->regs.uregs[16] = rawregs->cpsr;
thread->regs.uregs[17] = 0; // what is ORIG_r0 exactly?
}
#elif defined(__mips__)
static void
ParseThreadRegisters(CrashedProcess::Thread* thread,
const MinidumpMemoryRange& range) {
const MDRawContextMIPS* rawregs = range.GetData<MDRawContextMIPS>(0);
for (int i = 0; i < MD_CONTEXT_MIPS_GPR_COUNT; ++i)
thread->regs.regs[i] = rawregs->iregs[i];
thread->regs.lo = rawregs->mdlo;
thread->regs.hi = rawregs->mdhi;
thread->regs.epc = rawregs->epc;
thread->regs.badvaddr = rawregs->badvaddr;
thread->regs.status = rawregs->status;
thread->regs.cause = rawregs->cause;
for (int i = 0; i < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT; ++i)
thread->fpregs.regs[i] = rawregs->float_save.regs[i];
thread->fpregs.fpcsr = rawregs->float_save.fpcsr;
thread->fpregs.fir = rawregs->float_save.fir;
}
#else
#error "This code has not been ported to your platform yet"
#endif
@ -421,6 +443,12 @@ ParseSystemInfo(CrashedProcess* crashinfo, const MinidumpMemoryRange& range,
"This version of minidump-2-core only supports ARM (32bit).\n");
_exit(1);
}
#elif defined(__mips__)
if (sysinfo->processor_architecture != MD_CPU_ARCHITECTURE_MIPS) {
fprintf(stderr,
"This version of minidump-2-core only supports mips (32bit).\n");
_exit(1);
}
#else
#error "This code has not been ported to your platform yet"
#endif
@ -445,6 +473,8 @@ ParseSystemInfo(CrashedProcess* crashinfo, const MinidumpMemoryRange& range,
? "x86-64"
: sysinfo->processor_architecture == MD_CPU_ARCHITECTURE_ARM
? "ARM"
: sysinfo->processor_architecture == MD_CPU_ARCHITECTURE_MIPS
? "MIPS"
: "???",
sysinfo->number_of_processors,
sysinfo->processor_level,