diff options
| author | gordana.cmiljanovic@imgtec.com <gordana.cmiljanovic@imgtec.com@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2013-09-11 11:37:04 +0000 |
|---|---|---|
| committer | gordana.cmiljanovic@imgtec.com <gordana.cmiljanovic@imgtec.com@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2013-09-11 11:37:04 +0000 |
| commit | f78839c15730533fc433c50ea83a3afea835c245 (patch) | |
| tree | 9b3136dd94e663af23394356679b78467fddd5b7 | |
| parent | Fixing minidump_dump to handle nacl dumps. (diff) | |
| download | breakpad-f78839c15730533fc433c50ea83a3afea835c245.tar.xz | |
Adding support for mips.
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
31 files changed, 2095 insertions, 39 deletions
diff --git a/Makefile.am b/Makefile.am index 28a2575a..31433ecc 100644 --- a/Makefile.am +++ b/Makefile.am @@ -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 \ diff --git a/Makefile.in b/Makefile.in index 827ad82c..df537dfd 100644 --- a/Makefile.in +++ b/Makefile.in @@ -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: @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_stackwalker_address_list_unittest-stackwalker_address_list_unittest.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/src_processor_stackwalker_amd64_unittest-stackwalker_amd64_unittest.Po@am__quote@ @AMDEP_TRUE@@am__include@ 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$(CYGPATH_W) 'src/testing/src/gmock-all.cc'; else $(CYGPATH_W) '$(srcdir)/src/testing/src/gmock-all.cc'; fi` +@am__fastdepCXX_TRUE@ $(am__mv) src/testing/src/$(DEPDIR)/src_processor_stackwalker_mips_unittest-gmock-all.Tpo src/testing/src/$(DEPDIR)/src_processor_stackwalker_mips_unittest-gmock-all.Po +@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='src/testing/src/gmock-all.cc' object='src/testing/src/src_processor_stackwalker_mips_unittest-gmock-all.obj' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCXX_FALSE@ DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCXX_FALSE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_mips_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o src/testing/src/src_processor_stackwalker_mips_unittest-gmock-all.obj `if test -f 'src/testing/src/gmock-all.cc'; then $(CYGPATH_W) 'src/testing/src/gmock-all.cc'; else $(CYGPATH_W) '$(srcdir)/src/testing/src/gmock-all.cc'; fi` + src/common/src_processor_stackwalker_x86_unittest-test_assembler.o: src/common/test_assembler.cc @am__fastdepCXX_TRUE@ $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(src_processor_stackwalker_x86_unittest_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT src/common/src_processor_stackwalker_x86_unittest-test_assembler.o -MD -MP -MF src/common/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Tpo -c -o src/common/src_processor_stackwalker_x86_unittest-test_assembler.o `test -f 'src/common/test_assembler.cc' || echo '$(srcdir)/'`src/common/test_assembler.cc @am__fastdepCXX_TRUE@ $(am__mv) src/common/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Tpo src/common/$(DEPDIR)/src_processor_stackwalker_x86_unittest-test_assembler.Po diff --git a/src/client/linux/handler/exception_handler.cc b/src/client/linux/handler/exception_handler.cc index 2808fc90..9df720dd 100644 --- a/src/client/linux/handler/exception_handler.cc +++ b/src/client/linux/handler/exception_handler.cc @@ -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 diff --git a/src/client/linux/handler/exception_handler.h b/src/client/linux/handler/exception_handler.h index 71554196..bbd962cb 100644 --- a/src/client/linux/handler/exception_handler.h +++ b/src/client/linux/handler/exception_handler.h @@ -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 }; diff --git a/src/client/linux/handler/exception_handler_unittest.cc b/src/client/linux/handler/exception_handler_unittest.cc index 0ba52163..702a3adb 100644 --- a/src/client/linux/handler/exception_handler_unittest.cc +++ b/src/client/linux/handler/exception_handler_unittest.cc @@ -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()); } diff --git a/src/client/linux/minidump_writer/linux_core_dumper.cc b/src/client/linux/minidump_writer/linux_core_dumper.cc index 47cc26c0..f5b19d10 100644 --- a/src/client/linux/minidump_writer/linux_core_dumper.cc +++ b/src/client/linux/minidump_writer/linux_core_dumper.cc @@ -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 diff --git a/src/client/linux/minidump_writer/linux_dumper.h b/src/client/linux/minidump_writer/linux_dumper.h index a4a3ab5a..2bb4cac7 100644 --- a/src/client/linux/minidump_writer/linux_dumper.h +++ b/src/client/linux/minidump_writer/linux_dumper.h @@ -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 }; diff --git a/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc b/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc index 68020694..461a6cfe 100644 --- a/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc +++ b/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc @@ -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 diff --git a/src/client/linux/minidump_writer/linux_ptrace_dumper.cc b/src/client/linux/minidump_writer/linux_ptrace_dumper.cc index 45d0f48f..3256f532 100644 --- a/src/client/linux/minidump_writer/linux_ptrace_dumper.cc +++ b/src/client/linux/minidump_writer/linux_ptrace_dumper.cc @@ -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 diff --git a/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc b/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc index bc7eae61..15a66ce2 100644 --- a/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc +++ b/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc @@ -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 diff --git a/src/client/linux/minidump_writer/minidump_writer.cc b/src/client/linux/minidump_writer/minidump_writer.cc index 2cbf4352..413e0807 100644 --- a/src/client/linux/minidump_writer/minidump_writer.cc +++ b/src/client/linux/minidump_writer/minidump_writer.cc @@ -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, diff --git a/src/client/linux/minidump_writer/minidump_writer_unittest.cc b/src/client/linux/minidump_writer/minidump_writer_unittest.cc index 9b7d73c0..1ef064b1 100644 --- a/src/client/linux/minidump_writer/minidump_writer_unittest.cc +++ b/src/client/linux/minidump_writer/minidump_writer_unittest.cc @@ -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 diff --git a/src/common/dwarf/dwarf2reader.cc b/src/common/dwarf/dwarf2reader.cc index f1a07f0b..a26143c7 100644 --- a/src/common/dwarf/dwarf2reader.cc +++ b/src/common/dwarf/dwarf2reader.cc @@ -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) { - reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset()); + if (!DoDefCFA(ops.register_number, ops.offset)) { + reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset()); + return false; + } + } else { + cfa_rule->SetBaseRegister(ops.register_number); + if (!cfa_rule->Handle(handler_, address_, + Handler::kCFARegister)) return false; } - if (!ParseOperands("r", &ops)) return false; - cfa_rule->SetBaseRegister(ops.register_number); - if (!cfa_rule->Handle(handler_, address_, - Handler::kCFARegister)) - return false; break; } diff --git a/src/common/dwarf_cfi_to_module.cc b/src/common/dwarf_cfi_to_module.cc index 15904d75..d0056f32 100644 --- a/src/common/dwarf_cfi_to_module.cc +++ b/src/common/dwarf_cfi_to_module.cc @@ -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) { diff --git a/src/common/dwarf_cfi_to_module.h b/src/common/dwarf_cfi_to_module.h index 7db552a6..d5a8b1cc 100644 --- a/src/common/dwarf_cfi_to_module.h +++ b/src/common/dwarf_cfi_to_module.h @@ -108,6 +108,9 @@ 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 diff --git a/src/common/linux/dump_symbols.cc b/src/common/linux/dump_symbols.cc index 014e7c3e..1f58d10f 100644 --- a/src/common/linux/dump_symbols.cc +++ b/src/common/linux/dump_symbols.cc @@ -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) { diff --git a/src/google_breakpad/common/minidump_cpu_mips.h b/src/google_breakpad/common/minidump_cpu_mips.h new file mode 100644 index 00000000..7a6d0495 --- /dev/null +++ b/src/google_breakpad/common/minidump_cpu_mips.h @@ -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__ diff --git a/src/google_breakpad/common/minidump_format.h b/src/google_breakpad/common/minidump_format.h index 90e5ba5b..6b425ea8 100644 --- a/src/google_breakpad/common/minidump_format.h +++ b/src/google_breakpad/common/minidump_format.h @@ -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" diff --git a/src/google_breakpad/processor/minidump.h b/src/google_breakpad/processor/minidump.h index 65b13a4e..ec2679c2 100644 --- a/src/google_breakpad/processor/minidump.h +++ b/src/google_breakpad/processor/minidump.h @@ -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 diff --git a/src/google_breakpad/processor/stack_frame_cpu.h b/src/google_breakpad/processor/stack_frame_cpu.h index cda3a8de..8bdbf167 100644 --- a/src/google_breakpad/processor/stack_frame_cpu.h +++ b/src/google_breakpad/processor/stack_frame_cpu.h @@ -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__ diff --git a/src/processor/minidump.cc b/src/processor/minidump.cc index 851d0664..c7f2bcaa 100755 --- a/src/processor/minidump.cc +++ b/src/processor/minidump.cc @@ -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; } diff --git a/src/processor/minidump_processor.cc b/src/processor/minidump_processor.cc index 51ee1164..17daa997 100644 --- a/src/processor/minidump_processor.cc +++ b/src/processor/minidump_processor.cc @@ -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]; diff --git a/src/processor/minidump_stackwalk.cc b/src/processor/minidump_stackwalk.cc index 756d8d0b..a49ed061 100644 --- a/src/processor/minidump_stackwalk.cc +++ b/src/processor/minidump_stackwalk.cc @@ -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 = '|'; @@ -271,7 +272,63 @@ 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()); } } diff --git a/src/processor/minidump_unittest.cc b/src/processor/minidump_unittest.cc index d16bbc62..bb7dac64 100644 --- a/src/processor/minidump_unittest.cc +++ b/src/processor/minidump_unittest.cc @@ -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 diff --git a/src/processor/stackwalker.cc b/src/processor/stackwalker.cc index c8438ccf..8a6b422d 100644 --- a/src/processor/stackwalker.cc +++ b/src/processor/stackwalker.cc @@ -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 { @@ -230,6 +231,12 @@ Stackwalker* Stackwalker::StackwalkerForCPU( context->GetContextSPARC(), 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; diff --git a/src/processor/stackwalker_mips.cc b/src/processor/stackwalker_mips.cc new file mode 100644 index 00000000..74f7f57d --- /dev/null +++ b/src/processor/stackwalker_mips.cc @@ -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 + diff --git a/src/processor/stackwalker_mips.h b/src/processor/stackwalker_mips.h new file mode 100644 index 00000000..5f97791f --- /dev/null +++ b/src/processor/stackwalker_mips.h @@ -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__ diff --git a/src/processor/stackwalker_mips_unittest.cc b/src/processor/stackwalker_mips_unittest.cc new file mode 100644 index 00000000..ed4be4f5 --- /dev/null +++ b/src/processor/stackwalker_mips_unittest.cc @@ -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()); +} diff --git a/src/processor/synth_minidump.cc b/src/processor/synth_minidump.cc index 0940a357..2cfbb088 100644 --- a/src/processor/synth_minidump.cc +++ b/src/processor/synth_minidump.cc @@ -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, diff --git a/src/processor/synth_minidump.h b/src/processor/synth_minidump.h index fbc1e29b..8dac8784 100644 --- a/src/processor/synth_minidump.h +++ b/src/processor/synth_minidump.h @@ -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. diff --git a/src/tools/linux/md2core/minidump-2-core.cc b/src/tools/linux/md2core/minidump-2-core.cc index 476f2dfa..e796dfe4 100644 --- a/src/tools/linux/md2core/minidump-2-core.cc +++ b/src/tools/linux/md2core/minidump-2-core.cc @@ -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, |