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dragonwell8_hotspot
提交 720eac28 编写于 作者: S simonis
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8015252: Enable HotSpot build with Clang 

Reviewed-by: twisti, dholmes, kvn
上级 31a10fc2
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Showing with 348 addition and 148 deletion
make/bsd/makefiles/adlc.make
浏览文件 @ 720eac28
......@@ -69,7 +69,7 @@ CXXFLAGS += -DASSERT
# CFLAGS_WARN holds compiler options to suppress/enable warnings.
# Compiler warnings are treated as errors
ifneq ($(COMPILER_WARNINGS_FATAL),false)
CFLAGS_WARN = -Werror
CFLAGS_WARN = $(WARNINGS_ARE_ERRORS)
endif
CFLAGS += $(CFLAGS_WARN)
......
make/bsd/makefiles/gcc.make
浏览文件 @ 720eac28
......@@ -71,6 +71,11 @@ ifeq ($(SPEC),)
CC = $(CC32)
endif
ifeq ($(USE_CLANG), true)
CXX = clang++
CC = clang
endif
HOSTCXX = $(CXX)
HOSTCC = $(CC)
endif
......@@ -79,21 +84,79 @@ ifeq ($(SPEC),)
endif
# -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
# prints the numbers (e.g. "2.95", "3.2.1")
CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
# check for precompiled headers support
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
# Allow the user to turn off precompiled headers from the command line.
ifneq ($(USE_PRECOMPILED_HEADER),0)
PRECOMPILED_HEADER_DIR=.
PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
ifeq ($(USE_CLANG), true)
CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1)
CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2)
else
# -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
# prints the numbers (e.g. "2.95", "3.2.1")
CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
endif
ifeq ($(USE_CLANG), true)
# clang has precompiled headers support by default, but the user can switch
# it off by using 'USE_PRECOMPILED_HEADER=0'.
ifdef LP64
ifeq ($(USE_PRECOMPILED_HEADER),)
USE_PRECOMPILED_HEADER=1
endif
else
# We don't support precompiled headers on 32-bit builds because there some files are
# compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make)
# Clang produces an error if the PCH file was compiled with other options than the actual compilation unit.
USE_PRECOMPILED_HEADER=0
endif
ifeq ($(USE_PRECOMPILED_HEADER),1)
ifndef LP64
$(error " Precompiled Headers only supported on 64-bit platforms!")
endif
PRECOMPILED_HEADER_DIR=.
PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch
PCH_FLAG = -include precompiled.hpp
PCH_FLAG/DEFAULT = $(PCH_FLAG)
PCH_FLAG/NO_PCH = -DNO_PCH
PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@))
VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE)
VM_PCH_FLAG/AOUT =
VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO))
# We only use precompiled headers for the JVM build
CFLAGS += $(VM_PCH_FLAG)
# There are some files which don't like precompiled headers
# The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build.
# But Clang doesn't support a precompiled header which was compiled with -O3
# to be used in a compilation unit which uses '-O0'. We could also prepare an
# extra '-O0' PCH file for the opt build and use it here, but it's probably
# not worth the effort as long as only two files need this special handling.
PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH)
PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH)
PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH)
endif
else # ($(USE_CLANG), true)
# check for precompiled headers support
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
# Allow the user to turn off precompiled headers from the command line.
ifneq ($(USE_PRECOMPILED_HEADER),0)
PRECOMPILED_HEADER_DIR=.
PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
endif
endif
endif
# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
ifeq ($(USE_PRECOMPILED_HEADER),0)
CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
endif
#------------------------------------------------------------------------
# Compiler flags
......@@ -115,17 +178,31 @@ endif
CFLAGS += $(VM_PICFLAG)
CFLAGS += -fno-rtti
CFLAGS += -fno-exceptions
CFLAGS += -pthread
CFLAGS += -fcheck-new
# version 4 and above support fvisibility=hidden (matches jni_x86.h file)
# except 4.1.2 gives pointless warnings that can't be disabled (afaik)
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
CFLAGS += -fvisibility=hidden
ifeq ($(USE_CLANG),)
CFLAGS += -pthread
CFLAGS += -fcheck-new
# version 4 and above support fvisibility=hidden (matches jni_x86.h file)
# except 4.1.2 gives pointless warnings that can't be disabled (afaik)
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
CFLAGS += -fvisibility=hidden
endif
else
CFLAGS += -fvisibility=hidden
endif
ifeq ($(USE_CLANG), true)
# Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm'
# Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment')
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0"
STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16
else
STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16
endif
endif
ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
ARCHFLAG/i486 = -m32 -march=i586
ARCHFLAG/amd64 = -m64
ARCHFLAG/amd64 = -m64 $(STACK_ALIGNMENT_OPT)
ARCHFLAG/ia64 =
ARCHFLAG/sparc = -m32 -mcpu=v9
ARCHFLAG/sparcv9 = -m64 -mcpu=v9
......@@ -163,14 +240,25 @@ ifneq ($(COMPILER_WARNINGS_FATAL),false)
WARNINGS_ARE_ERRORS = -Werror
endif
# Except for a few acceptable ones
# Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
# conversions which might affect the values. To avoid that, we need to turn
# it off explicitly.
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
ifeq ($(USE_CLANG), true)
# However we need to clean the code up before we can unrestrictedly enable this option with Clang
WARNINGS_ARE_ERRORS += -Wno-unused-value -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-compare
# Not yet supported by clang in Xcode 4.6.2
# WARNINGS_ARE_ERRORS += -Wno-tautological-constant-out-of-range-compare
WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess
WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body
endif
WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef
else
WARNING_FLAGS = -Wpointer-arith -Wconversion -Wsign-compare -Wundef
ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
# Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
# conversions which might affect the values. Only enable it in earlier versions.
WARNING_FLAGS = -Wunused-function
ifeq ($(USE_CLANG),)
WARNINGS_FLAGS += -Wconversion
endif
endif
CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
......@@ -214,14 +302,24 @@ endif
OPT_CFLAGS/NOOPT=-O0
# 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"
OPT_CFLAGS/mulnode.o += -O0
# Work around some compiler bugs.
ifeq ($(USE_CLANG), true)
ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)
OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
endif
else
# 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1)
OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT)
endif
endif
# Flags for generating make dependency flags.
ifneq ("${CC_VER_MAJOR}", "2")
DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
ifeq ($(USE_CLANG),)
ifneq ($(CC_VER_MAJOR), 2)
DEPFLAGS += -fpch-deps
endif
endif
# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
......@@ -249,13 +347,15 @@ endif
# statically link libstdc++.so, work with gcc but ignored by g++
STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
ifneq ("${CC_VER_MAJOR}", "2")
STATIC_LIBGCC += -static-libgcc
endif
ifeq ($(USE_CLANG),)
# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
ifneq ("${CC_VER_MAJOR}", "2")
STATIC_LIBGCC += -static-libgcc
endif
ifeq ($(BUILDARCH), ia64)
LFLAGS += -Wl,-relax
ifeq ($(BUILDARCH), ia64)
LFLAGS += -Wl,-relax
endif
endif
# Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
......@@ -296,25 +396,31 @@ endif
#------------------------------------------------------------------------
# Debug flags
# Use the stabs format for debugging information (this is the default
# on gcc-2.91). It's good enough, has all the information about line
# numbers and local variables, and libjvm.so is only about 16M.
# Change this back to "-g" if you want the most expressive format.
# (warning: that could easily inflate libjvm.so to 150M!)
# Note: The Itanium gcc compiler crashes when using -gstabs.
DEBUG_CFLAGS/ia64 = -g
DEBUG_CFLAGS/amd64 = -g
DEBUG_CFLAGS/arm = -g
DEBUG_CFLAGS/ppc = -g
DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
DEBUG_CFLAGS += -gstabs
ifeq ($(USE_CLANG), true)
# Restrict the debug information created by Clang to avoid
# too big object files and speed the build up a little bit
# (see http://llvm.org/bugs/show_bug.cgi?id=7554)
CFLAGS += -flimit-debug-info
endif
# DEBUG_BINARIES overrides everything, use full -g debug information
# DEBUG_BINARIES uses full -g debug information for all configs
ifeq ($(DEBUG_BINARIES), true)
DEBUG_CFLAGS = -g
CFLAGS += $(DEBUG_CFLAGS)
CFLAGS += -g
else
# Use the stabs format for debugging information (this is the default
# on gcc-2.91). It's good enough, has all the information about line
# numbers and local variables, and libjvm.so is only about 16M.
# Change this back to "-g" if you want the most expressive format.
# (warning: that could easily inflate libjvm.so to 150M!)
# Note: The Itanium gcc compiler crashes when using -gstabs.
DEBUG_CFLAGS/ia64 = -g
DEBUG_CFLAGS/amd64 = -g
DEBUG_CFLAGS/arm = -g
DEBUG_CFLAGS/ppc = -g
DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
DEBUG_CFLAGS += -gstabs
endif
endif
# If we are building HEADLESS, pass on to VM
......
make/bsd/makefiles/vm.make
浏览文件 @ 720eac28
......@@ -126,7 +126,11 @@ ifneq ($(OS_VENDOR), Darwin)
LFLAGS += -Xlinker -z -Xlinker noexecstack
endif
LIBS += -lm -pthread
LIBS += -lm
ifeq ($(USE_CLANG),)
LIBS += -pthread
endif
# By default, link the *.o into the library, not the executable.
LINK_INTO$(LINK_INTO) = LIBJVM
......
make/linux/makefiles/adlc.make
浏览文件 @ 720eac28
......@@ -68,7 +68,7 @@ CXXFLAGS += -DASSERT
# CFLAGS_WARN holds compiler options to suppress/enable warnings.
# Compiler warnings are treated as errors
CFLAGS_WARN = -Werror
CFLAGS_WARN = $(WARNINGS_ARE_ERRORS)
CFLAGS += $(CFLAGS_WARN)
OBJECTNAMES = \
......
make/linux/makefiles/gcc.make
浏览文件 @ 720eac28
......@@ -35,9 +35,15 @@ ifeq ($(SPEC),)
HOSTCXX = g++
HOSTCC = gcc
STRIP = $(ALT_COMPILER_PATH)/strip
else
ifeq ($(USE_CLANG), true)
CXX = clang++
CC = clang
else
CXX = g++
CC = gcc
endif
HOSTCXX = $(CXX)
HOSTCC = $(CC)
STRIP = strip
......@@ -46,19 +52,79 @@ ifeq ($(SPEC),)
endif
# -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
# prints the numbers (e.g. "2.95", "3.2.1")
CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
ifeq ($(USE_CLANG), true)
CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1)
CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2)
else
# -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
# prints the numbers (e.g. "2.95", "3.2.1")
CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
endif
ifeq ($(USE_CLANG), true)
# Clang has precompiled headers support by default, but the user can switch
# it off by using 'USE_PRECOMPILED_HEADER=0'.
ifdef LP64
ifeq ($(USE_PRECOMPILED_HEADER),)
USE_PRECOMPILED_HEADER=1
endif
else
# We don't support precompiled headers on 32-bit builds because there some files are
# compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make)
# Clang produces an error if the PCH file was compiled with other options than the actual compilation unit.
USE_PRECOMPILED_HEADER=0
endif
ifeq ($(USE_PRECOMPILED_HEADER),1)
ifndef LP64
$(error " Precompiled Headers only supported on 64-bit platforms!")
endif
PRECOMPILED_HEADER_DIR=.
PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch
PCH_FLAG = -include precompiled.hpp
PCH_FLAG/DEFAULT = $(PCH_FLAG)
PCH_FLAG/NO_PCH = -DNO_PCH
PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@))
# check for precompiled headers support
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
# Allow the user to turn off precompiled headers from the command line.
ifneq ($(USE_PRECOMPILED_HEADER),0)
PRECOMPILED_HEADER_DIR=.
PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE)
VM_PCH_FLAG/AOUT =
VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO))
# We only use precompiled headers for the JVM build
CFLAGS += $(VM_PCH_FLAG)
# There are some files which don't like precompiled headers
# The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build.
# But Clang doesn't support a precompiled header which was compiled with -O3
# to be used in a compilation unit which uses '-O0'. We could also prepare an
# extra '-O0' PCH file for the opt build and use it here, but it's probably
# not worth the effoert as long as only two files need this special handling.
PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH)
PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH)
PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH)
endif
else # ($(USE_CLANG), true)
# check for precompiled headers support
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
# Allow the user to turn off precompiled headers from the command line.
ifneq ($(USE_PRECOMPILED_HEADER),0)
PRECOMPILED_HEADER_DIR=.
PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
endif
endif
endif
# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
ifeq ($(USE_PRECOMPILED_HEADER),0)
CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
endif
......@@ -83,16 +149,30 @@ CFLAGS += $(VM_PICFLAG)
CFLAGS += -fno-rtti
CFLAGS += -fno-exceptions
CFLAGS += -D_REENTRANT
CFLAGS += -fcheck-new
# version 4 and above support fvisibility=hidden (matches jni_x86.h file)
# except 4.1.2 gives pointless warnings that can't be disabled (afaik)
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
CFLAGS += -fvisibility=hidden
ifeq ($(USE_CLANG),)
CFLAGS += -fcheck-new
# version 4 and above support fvisibility=hidden (matches jni_x86.h file)
# except 4.1.2 gives pointless warnings that can't be disabled (afaik)
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
CFLAGS += -fvisibility=hidden
endif
else
CFLAGS += -fvisibility=hidden
endif
ifeq ($(USE_CLANG), true)
# Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm'
# Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment')
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0"
STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16
else
STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16
endif
endif
ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
ARCHFLAG/i486 = -m32 -march=i586
ARCHFLAG/amd64 = -m64
ARCHFLAG/amd64 = -m64 $(STACK_ALIGNMENT_OPT)
ARCHFLAG/ia64 =
ARCHFLAG/sparc = -m32 -mcpu=v9
ARCHFLAG/sparcv9 = -m64 -mcpu=v9
......@@ -126,12 +206,22 @@ endif
# Compiler warnings are treated as errors
WARNINGS_ARE_ERRORS = -Werror
ifeq ($(USE_CLANG), true)
# However we need to clean the code up before we can unrestrictedly enable this option with Clang
WARNINGS_ARE_ERRORS += -Wno-unused-value -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare
WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess
WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body
endif
WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function
# Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
# conversions which might affect the values. Only enable it in earlier versions.
ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
WARNING_FLAGS += -Wconversion
ifeq ($(USE_CLANG),)
# Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
# conversions which might affect the values. Only enable it in earlier versions.
ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
WARNING_FLAGS += -Wconversion
endif
endif
CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
......@@ -165,19 +255,24 @@ endif
OPT_CFLAGS/NOOPT=-O0
# 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"
OPT_CFLAGS/mulnode.o += -O0
# Work around some compiler bugs.
ifeq ($(USE_CLANG), true)
ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)
OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
endif
else
# 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1)
OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT)
endif
endif
# Flags for generating make dependency flags.
ifneq ("${CC_VER_MAJOR}", "2")
DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
endif
# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
ifeq ($(USE_PRECOMPILED_HEADER),0)
CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
ifeq ($(USE_CLANG),)
ifneq ("${CC_VER_MAJOR}", "2")
DEPFLAGS += -fpch-deps
endif
endif
#------------------------------------------------------------------------
......@@ -186,24 +281,33 @@ endif
# statically link libstdc++.so, work with gcc but ignored by g++
STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
ifneq ("${CC_VER_MAJOR}", "2")
STATIC_LIBGCC += -static-libgcc
endif
ifeq ($(USE_CLANG),)
# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
ifneq ("${CC_VER_MAJOR}", "2")
STATIC_LIBGCC += -static-libgcc
endif
ifeq ($(BUILDARCH), ia64)
LFLAGS += -Wl,-relax
ifeq ($(BUILDARCH), ia64)
LFLAGS += -Wl,-relax
endif
endif
# Enable linker optimization
LFLAGS += -Xlinker -O1
# If this is a --hash-style=gnu system, use --hash-style=both
# The gnu .hash section won't work on some Linux systems like SuSE 10.
_HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')
ifneq ($(_HAS_HASH_STYLE_GNU),)
ifeq ($(USE_CLANG),)
# If this is a --hash-style=gnu system, use --hash-style=both
# The gnu .hash section won't work on some Linux systems like SuSE 10.
_HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')
ifneq ($(_HAS_HASH_STYLE_GNU),)
LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
endif
else
# Don't know how to find out the 'hash style' of a system as '-dumpspecs'
# doesn't work for Clang. So for now we'll alwys use --hash-style=both
LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
endif
LFLAGS += $(LDFLAGS_HASH_STYLE)
# Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
......@@ -221,6 +325,13 @@ AOUT_FLAGS += -Xlinker -export-dynamic
#------------------------------------------------------------------------
# Debug flags
ifeq ($(USE_CLANG), true)
# Restrict the debug information created by Clang to avoid
# too big object files and speed the build up a little bit
# (see http://llvm.org/bugs/show_bug.cgi?id=7554)
CFLAGS += -flimit-debug-info
endif
# DEBUG_BINARIES uses full -g debug information for all configs
ifeq ($(DEBUG_BINARIES), true)
CFLAGS += -g
......@@ -237,7 +348,12 @@ else
DEBUG_CFLAGS/ppc = -g
DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
DEBUG_CFLAGS += -gstabs
ifeq ($(USE_CLANG), true)
# Clang doesn't understand -gstabs
OPT_CFLAGS += -g
else
OPT_CFLAGS += -gstabs
endif
endif
ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
......@@ -247,7 +363,12 @@ else
FASTDEBUG_CFLAGS/ppc = -g
FASTDEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),)
FASTDEBUG_CFLAGS += -gstabs
ifeq ($(USE_CLANG), true)
# Clang doesn't understand -gstabs
OPT_CFLAGS += -g
else
OPT_CFLAGS += -gstabs
endif
endif
OPT_CFLAGS/ia64 = -g
......@@ -256,9 +377,14 @@ else
OPT_CFLAGS/ppc = -g
OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH))
ifeq ($(OPT_CFLAGS/$(BUILDARCH)),)
ifeq ($(USE_CLANG), true)
# Clang doesn't understand -gstabs
OPT_CFLAGS += -g
else
OPT_CFLAGS += -gstabs
endif
endif
endif
endif
# If we are building HEADLESS, pass on to VM
......
src/os/bsd/vm/os_bsd.cpp
浏览文件 @ 720eac28
......@@ -626,8 +626,6 @@ void os::Bsd::hotspot_sigmask(Thread* thread) {
//////////////////////////////////////////////////////////////////////////////
// create new thread
static address highest_vm_reserved_address();
// check if it's safe to start a new thread
static bool _thread_safety_check(Thread* thread) {
return true;
......@@ -2112,10 +2110,6 @@ bool os::pd_release_memory(char* addr, size_t size) {
return anon_munmap(addr, size);
}
static address highest_vm_reserved_address() {
return _highest_vm_reserved_address;
}
static bool bsd_mprotect(char* addr, size_t size, int prot) {
// Bsd wants the mprotect address argument to be page aligned.
char* bottom = (char*)align_size_down((intptr_t)addr, os::Bsd::page_size());
......@@ -2159,43 +2153,6 @@ bool os::Bsd::hugetlbfs_sanity_check(bool warn, size_t page_size) {
return false;
}
/*
* Set the coredump_filter bits to include largepages in core dump (bit 6)
*
* From the coredump_filter documentation:
*
* - (bit 0) anonymous private memory
* - (bit 1) anonymous shared memory
* - (bit 2) file-backed private memory
* - (bit 3) file-backed shared memory
* - (bit 4) ELF header pages in file-backed private memory areas (it is
* effective only if the bit 2 is cleared)
* - (bit 5) hugetlb private memory
* - (bit 6) hugetlb shared memory
*/
static void set_coredump_filter(void) {
FILE *f;
long cdm;
if ((f = fopen("/proc/self/coredump_filter", "r+")) == NULL) {
return;
}
if (fscanf(f, "%lx", &cdm) != 1) {
fclose(f);
return;
}
rewind(f);
if ((cdm & LARGEPAGES_BIT) == 0) {
cdm |= LARGEPAGES_BIT;
fprintf(f, "%#lx", cdm);
}
fclose(f);
}
// Large page support
static size_t _large_page_size = 0;
......
src/os_cpu/linux_x86/vm/linux_x86_32.s
浏览文件 @ 720eac28
......@@ -241,7 +241,7 @@ acb_CopyLeft:
jbe 2f # <= 32 dwords
rep; smovl
jmp 4f
.=.+8
.space 8
2: subl %esi,%edi
.p2align 4,,15
3: movl (%esi),%edx
......@@ -378,7 +378,7 @@ acs_CopyRight:
rep; smovl
jmp 4f
# copy aligned dwords
.=.+5
.space 5
2: subl %esi,%edi
.p2align 4,,15
3: movl (%esi),%edx
......@@ -454,7 +454,7 @@ ci_CopyRight:
popl %edi
popl %esi
ret
.=.+10
.space 10
2: subl %esi,%edi
jmp 4f
.p2align 4,,15
......
src/os_cpu/linux_x86/vm/os_linux_x86.cpp
浏览文件 @ 720eac28
......@@ -93,6 +93,10 @@ address os::current_stack_pointer() {
register void *esp;
__asm__("mov %%"SPELL_REG_SP", %0":"=r"(esp));
return (address) ((char*)esp + sizeof(long)*2);
#elif defined(__clang__)
intptr_t* esp;
__asm__ __volatile__ ("mov %%"SPELL_REG_SP", %0":"=r"(esp):);
return (address) esp;
#else
register void *esp __asm__ (SPELL_REG_SP);
return (address) esp;
......@@ -175,6 +179,9 @@ intptr_t* _get_previous_fp() {
#ifdef SPARC_WORKS
register intptr_t **ebp;
__asm__("mov %%"SPELL_REG_FP", %0":"=r"(ebp));
#elif defined(__clang__)
intptr_t **ebp;
__asm__ __volatile__ ("mov %%"SPELL_REG_FP", %0":"=r"(ebp):);
#else
register intptr_t **ebp __asm__ (SPELL_REG_FP);
#endif
......
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