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jemalloc cpp new/delete bindings

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Adds cpp bindings for jemalloc, along with necessary autoconf settings.
This is mostly to add sized deallocation support, which can't be added
from C directly.  Sized deallocation is ~10% microbench improvement.

* Import ax_cxx_compile_stdcxx.m4 from the autoconf repo, seems like the
  easiest way to get c++14 detection.
* Adds various other changes, like CXXFLAGS, to configure.ac.
* Adds new rules to Makefile.in for src/jemalloc-cpp.cpp, and a basic
  unittest.
* Both new and delete are overridden, to ensure jemalloc is used for
  both.
* TODO future enhancement of avoiding extra PLT thunks for new and
  delete - sdallocx and malloc are publicly exported jemalloc symbols,
  using an alias would link them directly.  Unfortunately, was having
  trouble getting it to play nice with jemalloc's namespace support.

Testing:
Tested gcc 4.8, gcc 5, gcc 5.2, clang 4.0.  Only gcc >= 5 has sized
deallocation support, verified that the rest build correctly.

Tested mac osx and Centos.

Tested --with-jemalloc-prefix and --without-export.

This resolves #202.
This commit is contained in:
Dave Watson 2016-10-23 15:56:30 -07:00 committed by Jason Evans
parent d4c5aceb7c
commit 2319152d9f
13 changed files with 905 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
.gitignore vendored
View File

@ -54,6 +54,13 @@ test/include/test/jemalloc_test_defs.h
/test/integration/*.gcno /test/integration/*.gcno
/test/integration/*.out /test/integration/*.out
/test/integration/cpp/[A-Za-z]*
!/test/integration/cpp/[A-Za-z]*.*
/test/integration/cpp/*.[od]
/test/integration/cpp/*.gcda
/test/integration/cpp/*.gcno
/test/integration/cpp/*.out
/test/src/*.[od] /test/src/*.[od]
/test/src/*.gcda /test/src/*.gcda
/test/src/*.gcno /test/src/*.gcno

4
INSTALL
View File

@ -208,6 +208,10 @@ any of the following arguments (not a definitive list) to 'configure':
intended as a workaround for systems that place security limitations on intended as a workaround for systems that place security limitations on
syscall(2). syscall(2).
--disable-cxx
Disable C++ integration. This will cause new and delete operator
implementations to be omitted.
--with-xslroot=<path> --with-xslroot=<path>
Specify where to find DocBook XSL stylesheets when building the Specify where to find DocBook XSL stylesheets when building the
documentation. documentation.

85
Makefile.in
View File

@ -9,6 +9,7 @@ vpath % .
SHELL := /bin/sh SHELL := /bin/sh
CC := @CC@ CC := @CC@
CXX := @CXX@
# Configuration parameters. # Configuration parameters.
DESTDIR = DESTDIR =
@ -26,6 +27,8 @@ abs_objroot := @abs_objroot@
CPPFLAGS := @CPPFLAGS@ -I$(srcroot)include -I$(objroot)include CPPFLAGS := @CPPFLAGS@ -I$(srcroot)include -I$(objroot)include
EXTRA_CFLAGS := @EXTRA_CFLAGS@ EXTRA_CFLAGS := @EXTRA_CFLAGS@
CFLAGS := @CFLAGS@ $(EXTRA_CFLAGS) CFLAGS := @CFLAGS@ $(EXTRA_CFLAGS)
EXTRA_CXXFLAGS := @EXTRA_CXXFLAGS@
CXXFLAGS := @CXXFLAGS@ $(EXTRA_CXXFLAGS)
LDFLAGS := @LDFLAGS@ LDFLAGS := @LDFLAGS@
EXTRA_LDFLAGS := @EXTRA_LDFLAGS@ EXTRA_LDFLAGS := @EXTRA_LDFLAGS@
LIBS := @LIBS@ LIBS := @LIBS@
@ -140,8 +143,10 @@ C_TESTLIB_SRCS := $(srcroot)test/src/btalloc.c $(srcroot)test/src/btalloc_0.c \
$(srcroot)test/src/thd.c $(srcroot)test/src/timer.c $(srcroot)test/src/thd.c $(srcroot)test/src/timer.c
ifeq (1, $(link_whole_archive)) ifeq (1, $(link_whole_archive))
C_UTIL_INTEGRATION_SRCS := C_UTIL_INTEGRATION_SRCS :=
C_UTIL_CPP_SRCS :=
else else
C_UTIL_INTEGRATION_SRCS := $(srcroot)src/nstime.c $(srcroot)src/util.c C_UTIL_INTEGRATION_SRCS := $(srcroot)src/nstime.c $(srcroot)src/util.c
C_UTIL_CPP_SRCS := $(srcroot)src/nstime.c $(srcroot)src/util.c
endif endif
TESTS_UNIT := \ TESTS_UNIT := \
$(srcroot)test/unit/a0.c \ $(srcroot)test/unit/a0.c \
@ -195,11 +200,21 @@ TESTS_INTEGRATION := $(srcroot)test/integration/aligned_alloc.c \
$(srcroot)test/integration/thread_arena.c \ $(srcroot)test/integration/thread_arena.c \
$(srcroot)test/integration/thread_tcache_enabled.c \ $(srcroot)test/integration/thread_tcache_enabled.c \
$(srcroot)test/integration/xallocx.c $(srcroot)test/integration/xallocx.c
ifeq (@enable_cxx@, 1)
CPP_SRCS := $(srcroot)src/jemalloc_cpp.cpp
TESTS_INTEGRATION_CPP := $(srcroot)test/integration/cpp/basic.cpp
else
CPP_SRCS :=
TESTS_INTEGRATION_CPP :=
endif
TESTS_STRESS := $(srcroot)test/stress/microbench.c TESTS_STRESS := $(srcroot)test/stress/microbench.c
TESTS := $(TESTS_UNIT) $(TESTS_INTEGRATION) $(TESTS_STRESS)
TESTS := $(TESTS_UNIT) $(TESTS_INTEGRATION) $(TESTS_INTEGRATION_CPP) $(TESTS_STRESS)
C_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.$(O)) C_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.$(O))
CPP_OBJS := $(CPP_SRCS:$(srcroot)%.cpp=$(objroot)%.$(O))
C_PIC_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.pic.$(O)) C_PIC_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.pic.$(O))
CPP_PIC_OBJS := $(CPP_SRCS:$(srcroot)%.cpp=$(objroot)%.pic.$(O))
C_JET_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.jet.$(O)) C_JET_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.jet.$(O))
C_TESTLIB_UNIT_OBJS := $(C_TESTLIB_SRCS:$(srcroot)%.c=$(objroot)%.unit.$(O)) C_TESTLIB_UNIT_OBJS := $(C_TESTLIB_SRCS:$(srcroot)%.c=$(objroot)%.unit.$(O))
C_TESTLIB_INTEGRATION_OBJS := $(C_TESTLIB_SRCS:$(srcroot)%.c=$(objroot)%.integration.$(O)) C_TESTLIB_INTEGRATION_OBJS := $(C_TESTLIB_SRCS:$(srcroot)%.c=$(objroot)%.integration.$(O))
@ -209,15 +224,17 @@ C_TESTLIB_OBJS := $(C_TESTLIB_UNIT_OBJS) $(C_TESTLIB_INTEGRATION_OBJS) $(C_UTIL_
TESTS_UNIT_OBJS := $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%.$(O)) TESTS_UNIT_OBJS := $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_INTEGRATION_OBJS := $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%.$(O)) TESTS_INTEGRATION_OBJS := $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_INTEGRATION_CPP_OBJS := $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%.$(O))
TESTS_STRESS_OBJS := $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%.$(O)) TESTS_STRESS_OBJS := $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_OBJS := $(TESTS_UNIT_OBJS) $(TESTS_INTEGRATION_OBJS) $(TESTS_STRESS_OBJS) TESTS_OBJS := $(TESTS_UNIT_OBJS) $(TESTS_INTEGRATION_OBJS) $(TESTS_STRESS_OBJS)
TESTS_CPP_OBJS := $(TESTS_INTEGRATION_CPP_OBJS)
.PHONY: all dist build_doc_html build_doc_man build_doc .PHONY: all dist build_doc_html build_doc_man build_doc
.PHONY: install_bin install_include install_lib .PHONY: install_bin install_include install_lib
.PHONY: install_doc_html install_doc_man install_doc install .PHONY: install_doc_html install_doc_man install_doc install
.PHONY: tests check clean distclean relclean .PHONY: tests check clean distclean relclean
.SECONDARY : $(TESTS_OBJS) .SECONDARY : $(TESTS_OBJS) $(TESTS_CPP_OBJS)
# Default target. # Default target.
all: build_lib all: build_lib
@ -239,15 +256,21 @@ build_doc: $(DOCS)
# #
ifdef CC_MM ifdef CC_MM
-include $(C_OBJS:%.$(O)=%.d) -include $(C_OBJS:%.$(O)=%.d)
-include $(CPP_OBJS:%.$(O)=%.d)
-include $(C_PIC_OBJS:%.$(O)=%.d) -include $(C_PIC_OBJS:%.$(O)=%.d)
-include $(CPP_PIC_OBJS:%.$(O)=%.d)
-include $(C_JET_OBJS:%.$(O)=%.d) -include $(C_JET_OBJS:%.$(O)=%.d)
-include $(C_TESTLIB_OBJS:%.$(O)=%.d) -include $(C_TESTLIB_OBJS:%.$(O)=%.d)
-include $(TESTS_OBJS:%.$(O)=%.d) -include $(TESTS_OBJS:%.$(O)=%.d)
-include $(TESTS_CPP_OBJS:%.$(O)=%.d)
endif endif
$(C_OBJS): $(objroot)src/%.$(O): $(srcroot)src/%.c $(C_OBJS): $(objroot)src/%.$(O): $(srcroot)src/%.c
$(CPP_OBJS): $(objroot)src/%.$(O): $(srcroot)src/%.cpp
$(C_PIC_OBJS): $(objroot)src/%.pic.$(O): $(srcroot)src/%.c $(C_PIC_OBJS): $(objroot)src/%.pic.$(O): $(srcroot)src/%.c
$(C_PIC_OBJS): CFLAGS += $(PIC_CFLAGS) $(C_PIC_OBJS): CFLAGS += $(PIC_CFLAGS)
$(CPP_PIC_OBJS): $(objroot)src/%.pic.$(O): $(srcroot)src/%.cpp
$(CPP_PIC_OBJS): CXXFLAGS += $(PIC_CFLAGS)
$(C_JET_OBJS): $(objroot)src/%.jet.$(O): $(srcroot)src/%.c $(C_JET_OBJS): $(objroot)src/%.jet.$(O): $(srcroot)src/%.c
$(C_JET_OBJS): CFLAGS += -DJEMALLOC_JET $(C_JET_OBJS): CFLAGS += -DJEMALLOC_JET
$(C_TESTLIB_UNIT_OBJS): $(objroot)test/src/%.unit.$(O): $(srcroot)test/src/%.c $(C_TESTLIB_UNIT_OBJS): $(objroot)test/src/%.unit.$(O): $(srcroot)test/src/%.c
@ -260,11 +283,14 @@ $(C_TESTLIB_STRESS_OBJS): CPPFLAGS += -DJEMALLOC_STRESS_TEST -DJEMALLOC_STRESS_T
$(C_TESTLIB_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include $(C_TESTLIB_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include
$(TESTS_UNIT_OBJS): CPPFLAGS += -DJEMALLOC_UNIT_TEST $(TESTS_UNIT_OBJS): CPPFLAGS += -DJEMALLOC_UNIT_TEST
$(TESTS_INTEGRATION_OBJS): CPPFLAGS += -DJEMALLOC_INTEGRATION_TEST $(TESTS_INTEGRATION_OBJS): CPPFLAGS += -DJEMALLOC_INTEGRATION_TEST
$(TESTS_INTEGRATION_CPP_OBJS): CPPFLAGS += -DJEMALLOC_INTEGRATION_CPP_TEST
$(TESTS_STRESS_OBJS): CPPFLAGS += -DJEMALLOC_STRESS_TEST $(TESTS_STRESS_OBJS): CPPFLAGS += -DJEMALLOC_STRESS_TEST
$(TESTS_OBJS): $(objroot)test/%.$(O): $(srcroot)test/%.c $(TESTS_OBJS): $(objroot)test/%.$(O): $(srcroot)test/%.c
$(TESTS_CPP_OBJS): $(objroot)test/%.$(O): $(srcroot)test/%.cpp
$(TESTS_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include $(TESTS_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include
$(TESTS_CPP_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include
ifneq ($(IMPORTLIB),$(SO)) ifneq ($(IMPORTLIB),$(SO))
$(C_OBJS) $(C_JET_OBJS): CPPFLAGS += -DDLLEXPORT $(CPP_OBJS) $(C_OBJS) $(C_JET_OBJS): CPPFLAGS += -DDLLEXPORT
endif endif
ifndef CC_MM ifndef CC_MM
@ -272,8 +298,8 @@ ifndef CC_MM
HEADER_DIRS = $(srcroot)include/jemalloc/internal \ HEADER_DIRS = $(srcroot)include/jemalloc/internal \
$(objroot)include/jemalloc $(objroot)include/jemalloc/internal $(objroot)include/jemalloc $(objroot)include/jemalloc/internal
HEADERS = $(wildcard $(foreach dir,$(HEADER_DIRS),$(dir)/*.h)) HEADERS = $(wildcard $(foreach dir,$(HEADER_DIRS),$(dir)/*.h))
$(C_OBJS) $(C_PIC_OBJS) $(C_JET_OBJS) $(C_TESTLIB_OBJS) $(TESTS_OBJS): $(HEADERS) $(C_OBJS) $(CPP_OBJS) $(C_PIC_OBJS) $(CPP_PIC_OBJS) $(C_JET_OBJS) $(C_TESTLIB_OBJS) $(TESTS_OBJS): $(HEADERS)
$(TESTS_OBJS): $(objroot)test/include/test/jemalloc_test.h $(TESTS_OBJS) $(TESTS_CPP_OBJS): $(objroot)test/include/test/jemalloc_test.h
endif endif
$(C_OBJS) $(C_PIC_OBJS) $(C_JET_OBJS) $(C_TESTLIB_OBJS) $(TESTS_OBJS): %.$(O): $(C_OBJS) $(C_PIC_OBJS) $(C_JET_OBJS) $(C_TESTLIB_OBJS) $(TESTS_OBJS): %.$(O):
@ -283,19 +309,26 @@ ifdef CC_MM
@$(CC) -MM $(CPPFLAGS) -MT $@ -o $(@:%.$(O)=%.d) $< @$(CC) -MM $(CPPFLAGS) -MT $@ -o $(@:%.$(O)=%.d) $<
endif endif
$(CPP_OBJS) $(CPP_PIC_OBJS) $(TESTS_CPP_OBJS): %.$(O):
@mkdir -p $(@D)
$(CXX) $(CXXFLAGS) -c $(CPPFLAGS) $(CTARGET) $<
ifdef CC_MM
@$(CXX) -MM $(CPPFLAGS) -MT $@ -o $(@:%.$(O)=%.d) $<
endif
ifneq ($(SOREV),$(SO)) ifneq ($(SOREV),$(SO))
%.$(SO) : %.$(SOREV) %.$(SO) : %.$(SOREV)
@mkdir -p $(@D) @mkdir -p $(@D)
ln -sf $(<F) $@ ln -sf $(<F) $@
endif endif
$(objroot)lib/$(LIBJEMALLOC).$(SOREV) : $(if $(PIC_CFLAGS),$(C_PIC_OBJS),$(C_OBJS)) $(objroot)lib/$(LIBJEMALLOC).$(SOREV) : $(if $(PIC_CFLAGS),$(C_PIC_OBJS),$(C_OBJS)) $(if $(PIC_CFLAGS),$(CPP_PIC_OBJS),$(CPP_OBJS))
@mkdir -p $(@D) @mkdir -p $(@D)
$(CC) $(DSO_LDFLAGS) $(call RPATH,$(RPATH_EXTRA)) $(LDTARGET) $+ $(LDFLAGS) $(LIBS) $(EXTRA_LDFLAGS) $(CC) $(DSO_LDFLAGS) $(call RPATH,$(RPATH_EXTRA)) $(LDTARGET) $+ $(LDFLAGS) $(LIBS) $(EXTRA_LDFLAGS)
$(objroot)lib/$(LIBJEMALLOC)_pic.$(A) : $(C_PIC_OBJS) $(objroot)lib/$(LIBJEMALLOC)_pic.$(A) : $(C_PIC_OBJS) $(CPP_PIC_OBJS)
$(objroot)lib/$(LIBJEMALLOC).$(A) : $(C_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(A) : $(C_OBJS) $(CPP_OBJS)
$(objroot)lib/$(LIBJEMALLOC)_s.$(A) : $(C_OBJS) $(objroot)lib/$(LIBJEMALLOC)_s.$(A) : $(C_OBJS) $(CPP_OBJS)
$(STATIC_LIBS): $(STATIC_LIBS):
@mkdir -p $(@D) @mkdir -p $(@D)
@ -307,7 +340,11 @@ $(objroot)test/unit/%$(EXE): $(objroot)test/unit/%.$(O) $(TESTS_UNIT_LINK_OBJS)
$(objroot)test/integration/%$(EXE): $(objroot)test/integration/%.$(O) $(C_TESTLIB_INTEGRATION_OBJS) $(C_UTIL_INTEGRATION_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(objroot)test/integration/%$(EXE): $(objroot)test/integration/%.$(O) $(C_TESTLIB_INTEGRATION_OBJS) $(C_UTIL_INTEGRATION_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB)
@mkdir -p $(@D) @mkdir -p $(@D)
$(CC) $(TEST_LD_MODE) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(LJEMALLOC) $(LDFLAGS) $(filter-out -lm,$(filter -lrt -lpthread,$(LIBS))) $(LM) $(EXTRA_LDFLAGS) $(CC) $(TEST_LD_MODE) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(LJEMALLOC) $(LDFLAGS) $(filter-out -lm,$(filter -lrt -lpthread -lstdc++,$(LIBS))) $(LM) $(EXTRA_LDFLAGS)
$(objroot)test/integration/cpp/%$(EXE): $(objroot)test/integration/cpp/%.$(O) $(C_TESTLIB_INTEGRATION_OBJS) $(C_UTIL_INTEGRATION_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB)
@mkdir -p $(@D)
$(CXX) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(LDFLAGS) $(filter-out -lm,$(LIBS)) -lm $(EXTRA_LDFLAGS)
$(objroot)test/stress/%$(EXE): $(objroot)test/stress/%.$(O) $(C_JET_OBJS) $(C_TESTLIB_STRESS_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(objroot)test/stress/%$(EXE): $(objroot)test/stress/%.$(O) $(C_JET_OBJS) $(C_TESTLIB_STRESS_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB)
@mkdir -p $(@D) @mkdir -p $(@D)
@ -373,7 +410,7 @@ install_doc: install_doc_html install_doc_man
install: install_bin install_include install_lib install_doc install: install_bin install_include install_lib install_doc
tests_unit: $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%$(EXE)) tests_unit: $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%$(EXE))
tests_integration: $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%$(EXE)) tests_integration: $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%$(EXE)) $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%$(EXE))
tests_stress: $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%$(EXE)) tests_stress: $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%$(EXE))
tests: tests_unit tests_integration tests_stress tests: tests_unit tests_integration tests_stress
@ -389,14 +426,14 @@ check_unit: tests_unit check_unit_dir
$(SHELL) $(objroot)test/test.sh $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%) $(SHELL) $(objroot)test/test.sh $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%)
check_integration_prof: tests_integration check_integration_dir check_integration_prof: tests_integration check_integration_dir
ifeq ($(enable_prof), 1) ifeq ($(enable_prof), 1)
$(MALLOC_CONF)="prof:true" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(MALLOC_CONF)="prof:true" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%)
$(MALLOC_CONF)="prof:true,prof_active:false" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(MALLOC_CONF)="prof:true,prof_active:false" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%)
endif endif
check_integration_decay: tests_integration check_integration_dir check_integration_decay: tests_integration check_integration_dir
$(MALLOC_CONF)="decay_time:-1" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(MALLOC_CONF)="decay_time:-1" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%)
$(MALLOC_CONF)="decay_time:0" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(MALLOC_CONF)="decay_time:0" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%)
check_integration: tests_integration check_integration_dir check_integration: tests_integration check_integration_dir
$(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%) $(TESTS_INTEGRATION_CPP:$(srcroot)%.cpp=$(objroot)%)
stress: tests_stress stress_dir stress: tests_stress stress_dir
$(SHELL) $(objroot)test/test.sh $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%) $(SHELL) $(objroot)test/test.sh $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%)
check: check_unit check_integration check_integration_decay check_integration_prof check: check_unit check_integration check_integration_decay check_integration_prof
@ -412,6 +449,7 @@ coverage_integration: check_integration
$(SHELL) $(srcroot)coverage.sh $(srcroot)src integration $(C_UTIL_INTEGRATION_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)src integration $(C_UTIL_INTEGRATION_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/src integration $(C_TESTLIB_INTEGRATION_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)test/src integration $(C_TESTLIB_INTEGRATION_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration integration $(TESTS_INTEGRATION_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration integration $(TESTS_INTEGRATION_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration/cpp integration $(TESTS_INTEGRATION_CPP_OBJS)
coverage_stress: stress coverage_stress: stress
$(SHELL) $(srcroot)coverage.sh $(srcroot)src pic $(C_PIC_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)src pic $(C_PIC_OBJS)
@ -428,20 +466,29 @@ coverage: check
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/src stress $(C_TESTLIB_STRESS_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)test/src stress $(C_TESTLIB_STRESS_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/unit unit $(TESTS_UNIT_OBJS) $(TESTS_UNIT_AUX_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)test/unit unit $(TESTS_UNIT_OBJS) $(TESTS_UNIT_AUX_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration integration $(TESTS_INTEGRATION_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration integration $(TESTS_INTEGRATION_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration/cpp integration $(TESTS_INTEGRATION_CPP_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/stress integration $(TESTS_STRESS_OBJS) $(SHELL) $(srcroot)coverage.sh $(srcroot)test/stress integration $(TESTS_STRESS_OBJS)
endif endif
clean: clean:
rm -f $(C_OBJS) rm -f $(C_OBJS)
rm -f $(CPP_OBJS)
rm -f $(C_PIC_OBJS) rm -f $(C_PIC_OBJS)
rm -f $(CPP_PIC_OBJS)
rm -f $(C_JET_OBJS) rm -f $(C_JET_OBJS)
rm -f $(C_TESTLIB_OBJS) rm -f $(C_TESTLIB_OBJS)
rm -f $(C_OBJS:%.$(O)=%.d) rm -f $(C_OBJS:%.$(O)=%.d)
rm -f $(C_OBJS:%.$(O)=%.gcda) rm -f $(C_OBJS:%.$(O)=%.gcda)
rm -f $(C_OBJS:%.$(O)=%.gcno) rm -f $(C_OBJS:%.$(O)=%.gcno)
rm -f $(CPP_OBJS:%.$(O)=%.d)
rm -f $(CPP_OBJS:%.$(O)=%.gcda)
rm -f $(CPP_OBJS:%.$(O)=%.gcno)
rm -f $(C_PIC_OBJS:%.$(O)=%.d) rm -f $(C_PIC_OBJS:%.$(O)=%.d)
rm -f $(C_PIC_OBJS:%.$(O)=%.gcda) rm -f $(C_PIC_OBJS:%.$(O)=%.gcda)
rm -f $(C_PIC_OBJS:%.$(O)=%.gcno) rm -f $(C_PIC_OBJS:%.$(O)=%.gcno)
rm -f $(CPP_PIC_OBJS:%.$(O)=%.d)
rm -f $(CPP_PIC_OBJS:%.$(O)=%.gcda)
rm -f $(CPP_PIC_OBJS:%.$(O)=%.gcno)
rm -f $(C_JET_OBJS:%.$(O)=%.d) rm -f $(C_JET_OBJS:%.$(O)=%.d)
rm -f $(C_JET_OBJS:%.$(O)=%.gcda) rm -f $(C_JET_OBJS:%.$(O)=%.gcda)
rm -f $(C_JET_OBJS:%.$(O)=%.gcno) rm -f $(C_JET_OBJS:%.$(O)=%.gcno)
@ -454,6 +501,12 @@ clean:
rm -f $(TESTS_OBJS:%.$(O)=%.gcda) rm -f $(TESTS_OBJS:%.$(O)=%.gcda)
rm -f $(TESTS_OBJS:%.$(O)=%.gcno) rm -f $(TESTS_OBJS:%.$(O)=%.gcno)
rm -f $(TESTS_OBJS:%.$(O)=%.out) rm -f $(TESTS_OBJS:%.$(O)=%.out)
rm -f $(TESTS_CPP_OBJS:%.$(O)=%$(EXE))
rm -f $(TESTS_CPP_OBJS)
rm -f $(TESTS_CPP_OBJS:%.$(O)=%.d)
rm -f $(TESTS_CPP_OBJS:%.$(O)=%.gcda)
rm -f $(TESTS_CPP_OBJS:%.$(O)=%.gcno)
rm -f $(TESTS_CPP_OBJS:%.$(O)=%.out)
rm -f $(DSOS) $(STATIC_LIBS) rm -f $(DSOS) $(STATIC_LIBS)
rm -f $(objroot)*.gcov.* rm -f $(objroot)*.gcov.*

4
bin/jemalloc-config.in
View File

@ -18,6 +18,7 @@ Options:
--cc : Print compiler used to build jemalloc. --cc : Print compiler used to build jemalloc.
--cflags : Print compiler flags used to build jemalloc. --cflags : Print compiler flags used to build jemalloc.
--cppflags : Print preprocessor flags used to build jemalloc. --cppflags : Print preprocessor flags used to build jemalloc.
--cxxflags : Print C++ compiler flags used to build jemalloc.
--ldflags : Print library flags used to build jemalloc. --ldflags : Print library flags used to build jemalloc.
--libs : Print libraries jemalloc was linked against. --libs : Print libraries jemalloc was linked against.
EOF EOF
@ -67,6 +68,9 @@ case "$1" in
--cppflags) --cppflags)
echo "@CPPFLAGS@" echo "@CPPFLAGS@"
;; ;;
--cxxflags)
echo "@CXXFLAGS@"
;;
--ldflags) --ldflags)
echo "@LDFLAGS@ @EXTRA_LDFLAGS@" echo "@LDFLAGS@ @EXTRA_LDFLAGS@"
;; ;;

72
configure.ac
View File

@ -29,6 +29,29 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
) )
]) ])
dnl JE_CXXFLAGS_APPEND(cflag)
AC_DEFUN([JE_CXXFLAGS_APPEND],
[
AC_MSG_CHECKING([whether compiler supports $1])
TCXXFLAGS="${CXXFLAGS}"
if test "x${CXXFLAGS}" = "x" ; then
CXXFLAGS="$1"
else
CXXFLAGS="${CXXFLAGS} $1"
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
]], [[
return 0;
]])],
[je_cv_cflags_appended=$1]
AC_MSG_RESULT([yes]),
[je_cv_cflags_appended=]
AC_MSG_RESULT([no])
[CXXFLAGS="${TCXXFLAGS}"]
)
])
dnl JE_COMPILABLE(label, hcode, mcode, rvar) dnl JE_COMPILABLE(label, hcode, mcode, rvar)
dnl dnl
dnl Use AC_LINK_IFELSE() rather than AC_COMPILE_IFELSE() so that linker errors dnl Use AC_LINK_IFELSE() rather than AC_COMPILE_IFELSE() so that linker errors
@ -211,6 +234,46 @@ fi
AC_SUBST([EXTRA_CFLAGS]) AC_SUBST([EXTRA_CFLAGS])
AC_PROG_CPP AC_PROG_CPP
AC_ARG_ENABLE([cxx],
[AS_HELP_STRING([--disable-cxx], [Disable C++ integration])],
if test "x$enable_cxx" = "xno" ; then
enable_cxx="0"
else
enable_cxx="1"
fi
,
enable_cxx="1"
)
if test "x$enable_cxx" = "x1" ; then
CXXFLAGS=""
dnl Require at least c++14, which is the first version to support sized
dnl deallocation. C++ support is not compiled otherwise.
m4_include([m4/ax_cxx_compile_stdcxx.m4])
AX_CXX_COMPILE_STDCXX([14], [noext], [optional])
if test "x${HAVE_CXX14}" = "x1" ; then
JE_CXXFLAGS_APPEND([-Wall])
JE_CXXFLAGS_APPEND([-g3])
SAVED_LIBS="${LIBS}"
LIBS="${LIBS} -lstdc++"
JE_COMPILABLE([libstdc++ linkage], [
#include <stdlib.h>
], [[
int *arr = (int *)malloc(sizeof(int) * 42);
if (arr == NULL)
return (1);
]], [je_cv_libstdcxx])
if test "x${je_cv_libstdcxx}" = "xno" ; then
LIBS="${SAVED_LIBS}"
fi
else
enable_cxx="0"
fi
fi
AC_SUBST([enable_cxx])
AC_SUBST([CXXFLAGS])
AC_SUBST([EXTRA_CXXFLAGS])
AC_C_BIGENDIAN([ac_cv_big_endian=1], [ac_cv_big_endian=0]) AC_C_BIGENDIAN([ac_cv_big_endian=1], [ac_cv_big_endian=0])
if test "x${ac_cv_big_endian}" = "x1" ; then if test "x${ac_cv_big_endian}" = "x1" ; then
AC_DEFINE_UNQUOTED([JEMALLOC_BIG_ENDIAN], [ ]) AC_DEFINE_UNQUOTED([JEMALLOC_BIG_ENDIAN], [ ])
@ -516,6 +579,7 @@ if test "x${je_cv_attribute}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ]) AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ])
if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then
JE_CFLAGS_APPEND([-fvisibility=hidden]) JE_CFLAGS_APPEND([-fvisibility=hidden])
JE_CXXFLAGS_APPEND([-fvisibility=hidden])
fi fi
fi fi
dnl Check for tls_model attribute support (clang 3.0 still lacks support). dnl Check for tls_model attribute support (clang 3.0 still lacks support).
@ -824,11 +888,14 @@ if test "x$enable_debug" = "x0" -a "x$no_CFLAGS" = "xyes" ; then
if test "x${optimize}" = "xyes" ; then if test "x${optimize}" = "xyes" ; then
if test "x$GCC" = "xyes" ; then if test "x$GCC" = "xyes" ; then
JE_CFLAGS_APPEND([-O3]) JE_CFLAGS_APPEND([-O3])
JE_CXXFLAGS_APPEND([-O3])
JE_CFLAGS_APPEND([-funroll-loops]) JE_CFLAGS_APPEND([-funroll-loops])
elif test "x$je_cv_msvc" = "xyes" ; then elif test "x$je_cv_msvc" = "xyes" ; then
JE_CFLAGS_APPEND([-O2]) JE_CFLAGS_APPEND([-O2])
JE_CXXFLAGS_APPEND([-O2])
else else
JE_CFLAGS_APPEND([-O]) JE_CFLAGS_APPEND([-O])
JE_CXXFLAGS_APPEND([-O])
fi fi
fi fi
fi fi
@ -1943,8 +2010,12 @@ AC_MSG_RESULT([CC : ${CC}])
AC_MSG_RESULT([CFLAGS : ${CFLAGS}]) AC_MSG_RESULT([CFLAGS : ${CFLAGS}])
AC_MSG_RESULT([EXTRA_CFLAGS : ${EXTRA_CFLAGS}]) AC_MSG_RESULT([EXTRA_CFLAGS : ${EXTRA_CFLAGS}])
AC_MSG_RESULT([CPPFLAGS : ${CPPFLAGS}]) AC_MSG_RESULT([CPPFLAGS : ${CPPFLAGS}])
AC_MSG_RESULT([CXX : ${CXX}])
AC_MSG_RESULT([CXXFLAGS : ${CXXFLAGS}])
AC_MSG_RESULT([EXTRA_CXXFLAGS : ${EXTRA_CXXFLAGS}])
AC_MSG_RESULT([LDFLAGS : ${LDFLAGS}]) AC_MSG_RESULT([LDFLAGS : ${LDFLAGS}])
AC_MSG_RESULT([EXTRA_LDFLAGS : ${EXTRA_LDFLAGS}]) AC_MSG_RESULT([EXTRA_LDFLAGS : ${EXTRA_LDFLAGS}])
AC_MSG_RESULT([DSO_LDFLAGS : ${DSO_LDFLAGS}])
AC_MSG_RESULT([LIBS : ${LIBS}]) AC_MSG_RESULT([LIBS : ${LIBS}])
AC_MSG_RESULT([RPATH_EXTRA : ${RPATH_EXTRA}]) AC_MSG_RESULT([RPATH_EXTRA : ${RPATH_EXTRA}])
AC_MSG_RESULT([]) AC_MSG_RESULT([])
@ -1985,4 +2056,5 @@ AC_MSG_RESULT([munmap : ${enable_munmap}])
AC_MSG_RESULT([lazy_lock : ${enable_lazy_lock}]) AC_MSG_RESULT([lazy_lock : ${enable_lazy_lock}])
AC_MSG_RESULT([tls : ${enable_tls}]) AC_MSG_RESULT([tls : ${enable_tls}])
AC_MSG_RESULT([cache-oblivious : ${enable_cache_oblivious}]) AC_MSG_RESULT([cache-oblivious : ${enable_cache_oblivious}])
AC_MSG_RESULT([cxx : ${enable_cxx}])
AC_MSG_RESULT([===============================================================================]) AC_MSG_RESULT([===============================================================================])

13
include/jemalloc/internal/jemalloc_internal.h.in
View File

@ -1,6 +1,10 @@
#ifndef JEMALLOC_INTERNAL_H #ifndef JEMALLOC_INTERNAL_H
#define JEMALLOC_INTERNAL_H #define JEMALLOC_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif
#include "jemalloc_internal_defs.h" #include "jemalloc_internal_defs.h"
#include "jemalloc/internal/jemalloc_internal_decls.h" #include "jemalloc/internal/jemalloc_internal_decls.h"
@ -135,7 +139,7 @@ static const bool config_cache_oblivious =
#endif #endif
; ;
#ifdef JEMALLOC_C11ATOMICS #if defined(JEMALLOC_C11ATOMICS) && !defined(__cplusplus)
#include <stdatomic.h> #include <stdatomic.h>
#endif #endif
@ -888,7 +892,7 @@ arena_get(tsdn_t *tsdn, unsigned ind, bool init_if_missing)
ret = arenas[ind]; ret = arenas[ind];
if (unlikely(ret == NULL)) { if (unlikely(ret == NULL)) {
ret = atomic_read_p((void *)&arenas[ind]); ret = (arena_t *)atomic_read_p((void **)&arenas[ind]);
if (init_if_missing && unlikely(ret == NULL)) if (init_if_missing && unlikely(ret == NULL))
ret = arena_init(tsdn, ind); ret = arena_init(tsdn, ind);
} }
@ -1194,4 +1198,9 @@ ixalloc(tsdn_t *tsdn, extent_t *extent, void *ptr, size_t oldsize, size_t size,
#undef JEMALLOC_H_INLINES #undef JEMALLOC_H_INLINES
/******************************************************************************/ /******************************************************************************/
#ifdef __cplusplus
}
#endif
#endif /* JEMALLOC_INTERNAL_H */ #endif /* JEMALLOC_INTERNAL_H */

2
include/jemalloc/internal/jemalloc_internal_macros.h
View File

@ -52,6 +52,6 @@
# define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) # define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
#endif #endif
#ifndef JEMALLOC_HAS_RESTRICT #if !defined(JEMALLOC_HAS_RESTRICT) || defined(__cplusplus)
# define restrict # define restrict
#endif #endif

8
include/jemalloc/internal/rtree.h
View File

@ -260,7 +260,7 @@ rtree_child_tryread(rtree_elm_t *elm, bool dependent)
/* Double-checked read (first read may be stale). */ /* Double-checked read (first read may be stale). */
child = elm->child; child = elm->child;
if (!dependent && !rtree_node_valid(child)) if (!dependent && !rtree_node_valid(child))
child = atomic_read_p(&elm->pun); child = (rtree_elm_t *)atomic_read_p(&elm->pun);
assert(!dependent || child != NULL); assert(!dependent || child != NULL);
return (child); return (child);
} }
@ -320,8 +320,10 @@ rtree_subtree_tryread(rtree_t *rtree, unsigned level, bool dependent)
/* Double-checked read (first read may be stale). */ /* Double-checked read (first read may be stale). */
subtree = rtree->levels[level].subtree; subtree = rtree->levels[level].subtree;
if (!dependent && unlikely(!rtree_node_valid(subtree))) if (!dependent && unlikely(!rtree_node_valid(subtree))) {
subtree = atomic_read_p(&rtree->levels[level].subtree_pun); subtree = (rtree_elm_t *)atomic_read_p(
&rtree->levels[level].subtree_pun);
}
assert(!dependent || subtree != NULL); assert(!dependent || subtree != NULL);
return (subtree); return (subtree);
} }

562
m4/ax_cxx_compile_stdcxx.m4 Normal file
View File

@ -0,0 +1,562 @@
# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
#
# DESCRIPTION
#
# Check for baseline language coverage in the compiler for the specified
# version of the C++ standard. If necessary, add switches to CXX and
# CXXCPP to enable support. VERSION may be '11' (for the C++11 standard)
# or '14' (for the C++14 standard).
#
# The second argument, if specified, indicates whether you insist on an
# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
# -std=c++11). If neither is specified, you get whatever works, with
# preference for an extended mode.
#
# The third argument, if specified 'mandatory' or if left unspecified,
# indicates that baseline support for the specified C++ standard is
# required and that the macro should error out if no mode with that
# support is found. If specified 'optional', then configuration proceeds
# regardless, after defining HAVE_CXX${VERSION} if and only if a
# supporting mode is found.
#
# LICENSE
#
# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
# Copyright (c) 2012 Zack Weinberg <zackw@panix.com>
# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu>
# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
# Copyright (c) 2015 Paul Norman <penorman@mac.com>
# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 4
dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
dnl (serial version number 13).
AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
m4_if([$1], [11], [],
[$1], [14], [],
[$1], [17], [m4_fatal([support for C++17 not yet implemented in AX_CXX_COMPILE_STDCXX])],
[m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
m4_if([$2], [], [],
[$2], [ext], [],
[$2], [noext], [],
[m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl
m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true],
[$3], [mandatory], [ax_cxx_compile_cxx$1_required=true],
[$3], [optional], [ax_cxx_compile_cxx$1_required=false],
[m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
AC_LANG_PUSH([C++])dnl
ac_success=no
AC_CACHE_CHECK(whether $CXX supports C++$1 features by default,
ax_cv_cxx_compile_cxx$1,
[AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
[ax_cv_cxx_compile_cxx$1=yes],
[ax_cv_cxx_compile_cxx$1=no])])
if test x$ax_cv_cxx_compile_cxx$1 = xyes; then
ac_success=yes
fi
m4_if([$2], [noext], [], [dnl
if test x$ac_success = xno; then
for switch in -std=gnu++$1 -std=gnu++0x; do
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
$cachevar,
[ac_save_CXX="$CXX"
CXX="$CXX $switch"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
[eval $cachevar=yes],
[eval $cachevar=no])
CXX="$ac_save_CXX"])
if eval test x\$$cachevar = xyes; then
CXX="$CXX $switch"
if test -n "$CXXCPP" ; then
CXXCPP="$CXXCPP $switch"
fi
ac_success=yes
break
fi
done
fi])
m4_if([$2], [ext], [], [dnl
if test x$ac_success = xno; then
dnl HP's aCC needs +std=c++11 according to:
dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
dnl Cray's crayCC needs "-h std=c++11"
for switch in -std=c++$1 -std=c++0x +std=c++$1 "-h std=c++$1"; do
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
$cachevar,
[ac_save_CXX="$CXX"
CXX="$CXX $switch"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
[eval $cachevar=yes],
[eval $cachevar=no])
CXX="$ac_save_CXX"])
if eval test x\$$cachevar = xyes; then
CXX="$CXX $switch"
if test -n "$CXXCPP" ; then
CXXCPP="$CXXCPP $switch"
fi
ac_success=yes
break
fi
done
fi])
AC_LANG_POP([C++])
if test x$ax_cxx_compile_cxx$1_required = xtrue; then
if test x$ac_success = xno; then
AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.])
fi
fi
if test x$ac_success = xno; then
HAVE_CXX$1=0
AC_MSG_NOTICE([No compiler with C++$1 support was found])
else
HAVE_CXX$1=1
AC_DEFINE(HAVE_CXX$1,1,
[define if the compiler supports basic C++$1 syntax])
fi
AC_SUBST(HAVE_CXX$1)
])
dnl Test body for checking C++11 support
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
)
dnl Test body for checking C++14 support
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
)
dnl Tests for new features in C++11
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
// If the compiler admits that it is not ready for C++11, why torture it?
// Hopefully, this will speed up the test.
#ifndef __cplusplus
#error "This is not a C++ compiler"
#elif __cplusplus < 201103L
#error "This is not a C++11 compiler"
#else
namespace cxx11
{
namespace test_static_assert
{
template <typename T>
struct check
{
static_assert(sizeof(int) <= sizeof(T), "not big enough");
};
}
namespace test_final_override
{
struct Base
{
virtual void f() {}
};
struct Derived : public Base
{
virtual void f() override {}
};
}
namespace test_double_right_angle_brackets
{
template < typename T >
struct check {};
typedef check<void> single_type;
typedef check<check<void>> double_type;
typedef check<check<check<void>>> triple_type;
typedef check<check<check<check<void>>>> quadruple_type;
}
namespace test_decltype
{
int
f()
{
int a = 1;
decltype(a) b = 2;
return a + b;
}
}
namespace test_type_deduction
{
template < typename T1, typename T2 >
struct is_same
{
static const bool value = false;
};
template < typename T >
struct is_same<T, T>
{
static const bool value = true;
};
template < typename T1, typename T2 >
auto
add(T1 a1, T2 a2) -> decltype(a1 + a2)
{
return a1 + a2;
}
int
test(const int c, volatile int v)
{
static_assert(is_same<int, decltype(0)>::value == true, "");
static_assert(is_same<int, decltype(c)>::value == false, "");
static_assert(is_same<int, decltype(v)>::value == false, "");
auto ac = c;
auto av = v;
auto sumi = ac + av + 'x';
auto sumf = ac + av + 1.0;
static_assert(is_same<int, decltype(ac)>::value == true, "");
static_assert(is_same<int, decltype(av)>::value == true, "");
static_assert(is_same<int, decltype(sumi)>::value == true, "");
static_assert(is_same<int, decltype(sumf)>::value == false, "");
static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
return (sumf > 0.0) ? sumi : add(c, v);
}
}
namespace test_noexcept
{
int f() { return 0; }
int g() noexcept { return 0; }
static_assert(noexcept(f()) == false, "");
static_assert(noexcept(g()) == true, "");
}
namespace test_constexpr
{
template < typename CharT >
unsigned long constexpr
strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
{
return *s ? strlen_c_r(s + 1, acc + 1) : acc;
}
template < typename CharT >
unsigned long constexpr
strlen_c(const CharT *const s) noexcept
{
return strlen_c_r(s, 0UL);
}
static_assert(strlen_c("") == 0UL, "");
static_assert(strlen_c("1") == 1UL, "");
static_assert(strlen_c("example") == 7UL, "");
static_assert(strlen_c("another\0example") == 7UL, "");
}
namespace test_rvalue_references
{
template < int N >
struct answer
{
static constexpr int value = N;
};
answer<1> f(int&) { return answer<1>(); }
answer<2> f(const int&) { return answer<2>(); }
answer<3> f(int&&) { return answer<3>(); }
void
test()
{
int i = 0;
const int c = 0;
static_assert(decltype(f(i))::value == 1, "");
static_assert(decltype(f(c))::value == 2, "");
static_assert(decltype(f(0))::value == 3, "");
}
}
namespace test_uniform_initialization
{
struct test
{
static const int zero {};
static const int one {1};
};
static_assert(test::zero == 0, "");
static_assert(test::one == 1, "");
}
namespace test_lambdas
{
void
test1()
{
auto lambda1 = [](){};
auto lambda2 = lambda1;
lambda1();
lambda2();
}
int
test2()
{
auto a = [](int i, int j){ return i + j; }(1, 2);
auto b = []() -> int { return '0'; }();
auto c = [=](){ return a + b; }();
auto d = [&](){ return c; }();
auto e = [a, &b](int x) mutable {
const auto identity = [](int y){ return y; };
for (auto i = 0; i < a; ++i)
a += b--;
return x + identity(a + b);
}(0);
return a + b + c + d + e;
}
int
test3()
{
const auto nullary = [](){ return 0; };
const auto unary = [](int x){ return x; };
using nullary_t = decltype(nullary);
using unary_t = decltype(unary);
const auto higher1st = [](nullary_t f){ return f(); };
const auto higher2nd = [unary](nullary_t f1){
return [unary, f1](unary_t f2){ return f2(unary(f1())); };
};
return higher1st(nullary) + higher2nd(nullary)(unary);
}
}
namespace test_variadic_templates
{
template <int...>
struct sum;
template <int N0, int... N1toN>
struct sum<N0, N1toN...>
{
static constexpr auto value = N0 + sum<N1toN...>::value;
};
template <>
struct sum<>
{
static constexpr auto value = 0;
};
static_assert(sum<>::value == 0, "");
static_assert(sum<1>::value == 1, "");
static_assert(sum<23>::value == 23, "");
static_assert(sum<1, 2>::value == 3, "");
static_assert(sum<5, 5, 11>::value == 21, "");
static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
}
// http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
// Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
// because of this.
namespace test_template_alias_sfinae
{
struct foo {};
template<typename T>
using member = typename T::member_type;
template<typename T>
void func(...) {}
template<typename T>
void func(member<T>*) {}
void test();
void test() { func<foo>(0); }
}
} // namespace cxx11
#endif // __cplusplus >= 201103L
]])
dnl Tests for new features in C++14
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
// If the compiler admits that it is not ready for C++14, why torture it?
// Hopefully, this will speed up the test.
#ifndef __cplusplus
#error "This is not a C++ compiler"
#elif __cplusplus < 201402L
#error "This is not a C++14 compiler"
#else
namespace cxx14
{
namespace test_polymorphic_lambdas
{
int
test()
{
const auto lambda = [](auto&&... args){
const auto istiny = [](auto x){
return (sizeof(x) == 1UL) ? 1 : 0;
};
const int aretiny[] = { istiny(args)... };
return aretiny[0];
};
return lambda(1, 1L, 1.0f, '1');
}
}
namespace test_binary_literals
{
constexpr auto ivii = 0b0000000000101010;
static_assert(ivii == 42, "wrong value");
}
namespace test_generalized_constexpr
{
template < typename CharT >
constexpr unsigned long
strlen_c(const CharT *const s) noexcept
{
auto length = 0UL;
for (auto p = s; *p; ++p)
++length;
return length;
}
static_assert(strlen_c("") == 0UL, "");
static_assert(strlen_c("x") == 1UL, "");
static_assert(strlen_c("test") == 4UL, "");
static_assert(strlen_c("another\0test") == 7UL, "");
}
namespace test_lambda_init_capture
{
int
test()
{
auto x = 0;
const auto lambda1 = [a = x](int b){ return a + b; };
const auto lambda2 = [a = lambda1(x)](){ return a; };
return lambda2();
}
}
namespace test_digit_seperators
{
constexpr auto ten_million = 100'000'000;
static_assert(ten_million == 100000000, "");
}
namespace test_return_type_deduction
{
auto f(int& x) { return x; }
decltype(auto) g(int& x) { return x; }
template < typename T1, typename T2 >
struct is_same
{
static constexpr auto value = false;
};
template < typename T >
struct is_same<T, T>
{
static constexpr auto value = true;
};
int
test()
{
auto x = 0;
static_assert(is_same<int, decltype(f(x))>::value, "");
static_assert(is_same<int&, decltype(g(x))>::value, "");
return x;
}
}
} // namespace cxx14
#endif // __cplusplus >= 201402L
]])

140
src/jemalloc_cpp.cpp Normal file
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@ -0,0 +1,140 @@
#include <mutex>
#include <new>
#define JEMALLOC_CPP_CPP_
#include "jemalloc/internal/jemalloc_internal.h"
// All operators in this file are exported.
// Possibly alias hidden versions of malloc and sdallocx to avoid an extra plt
// thunk?
//
// extern __typeof (sdallocx) sdallocx_int
// __attribute ((alias ("sdallocx"),
// visibility ("hidden")));
//
// ... but it needs to work with jemalloc namespaces.
void *operator new(std::size_t size);
void *operator new[](std::size_t size);
void *operator new(std::size_t size, const std::nothrow_t&) noexcept;
void *operator new[](std::size_t size, const std::nothrow_t&) noexcept;
void operator delete(void* ptr) noexcept;
void operator delete[](void* ptr) noexcept;
void operator delete(void* ptr, const std::nothrow_t&) noexcept;
void operator delete[](void* ptr, const std::nothrow_t&) noexcept;
#if __cpp_sized_deallocation >= 201309
/* C++14's sized-delete operators. */
void operator delete(void* ptr, std::size_t size) noexcept;
void operator delete[](void* ptr, std::size_t size) noexcept;
#endif
template <bool IsNoExcept>
JEMALLOC_INLINE
void *
newImpl(std::size_t size) noexcept(IsNoExcept)
{
void* ptr = je_malloc(size);
if (likely(ptr != nullptr))
return (ptr);
while (ptr == nullptr) {
std::new_handler handler;
// GCC-4.8 and clang 4.0 do not have std::get_new_handler.
{
static std::mutex mtx;
std::lock_guard<std::mutex> lock(mtx);
handler = std::set_new_handler(nullptr);
std::set_new_handler(handler);
}
if (handler == nullptr)
break;
try {
handler();
} catch (const std::bad_alloc&) {
break;
}
ptr = je_malloc(size);
}
if (ptr == nullptr && !IsNoExcept)
std::__throw_bad_alloc();
return (ptr);
}
void *
operator new(std::size_t size)
{
return (newImpl<false>(size));
}
void *
operator new[](std::size_t size)
{
return (newImpl<false>(size));
}
void *
operator new(std::size_t size, const std::nothrow_t&) noexcept
{
return (newImpl<true>(size));
}
void *
operator new[](std::size_t size, const std::nothrow_t&) noexcept
{
return (newImpl<true>(size));
}
void
operator delete(void* ptr) noexcept
{
je_free(ptr);
}
void
operator delete[](void* ptr) noexcept
{
je_free(ptr);
}
void
operator delete(void* ptr, const std::nothrow_t&) noexcept
{
je_free(ptr);
}
void operator delete[](void* ptr, const std::nothrow_t&) noexcept
{
je_free(ptr);
}
#if __cpp_sized_deallocation >= 201309
void
operator delete(void* ptr, std::size_t size) noexcept
{
je_sdallocx(ptr, size, /*flags=*/0);
}
void operator delete[](void* ptr, std::size_t size) noexcept
{
je_sdallocx(ptr, size, /*flags=*/0);
}
#endif // __cpp_sized_deallocation

11
test/include/test/jemalloc_test.h.in
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@ -1,3 +1,7 @@
#ifdef __cplusplus
extern "C" {
#endif
#include <limits.h> #include <limits.h>
#ifndef SIZE_T_MAX #ifndef SIZE_T_MAX
# define SIZE_T_MAX SIZE_MAX # define SIZE_T_MAX SIZE_MAX
@ -47,7 +51,8 @@
* expose the minimum necessary internal utility code (to avoid re-implementing * expose the minimum necessary internal utility code (to avoid re-implementing
* essentially identical code within the test infrastructure). * essentially identical code within the test infrastructure).
*/ */
#elif defined(JEMALLOC_INTEGRATION_TEST) #elif defined(JEMALLOC_INTEGRATION_TEST) || \
defined(JEMALLOC_INTEGRATION_CPP_TEST)
# define JEMALLOC_MANGLE # define JEMALLOC_MANGLE
# include "jemalloc/jemalloc@install_suffix@.h" # include "jemalloc/jemalloc@install_suffix@.h"
# include "jemalloc/internal/jemalloc_internal_defs.h" # include "jemalloc/internal/jemalloc_internal_defs.h"
@ -161,3 +166,7 @@ static const bool config_debug =
if (!(e)) \ if (!(e)) \
not_implemented(); \ not_implemented(); \
} while (0) } while (0)
#ifdef __cplusplus
}
#endif

18
test/integration/cpp/basic.cpp Normal file
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@ -0,0 +1,18 @@
#include <memory>
#include "test/jemalloc_test.h"
TEST_BEGIN(test_basic)
{
auto foo = new long(4);
assert_ptr_not_null(foo, "Unexpected new[] failure");
delete foo;
}
TEST_END
int
main()
{
return (test(
test_basic));
}