| Message ID | 20160211233903.d976f6d4457d8fe414158824@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Feb 11, 2016 at 2:39 PM, Emese Revfy <re.emese@gmail.com> wrote: > This patch allows to build the whole kernel with GCC plugins. It was ported from > grsecurity/PaX. The infrastructure supports building out-of-tree modules and > building in a separate directory. Cross-compilation is supported too but > currently only the x86 architecture enables plugins. > > The directory of the gcc plugins is tools/gcc. You can use a file or a directory > there. The plugins compile with these options: > * -fno-rtti: gcc is compiled with this option so the plugins must use it too > * -fno-exceptions: this is inherited from gcc too > * -fasynchronous-unwind-tables: this is inherited from gcc too > * -ggdb: it is useful for debugging a plugin (better backtrace on internal > errors) > * -Wno-narrowing: to suppress warnings from gcc headers (ipa-utils.h) > * -Wno-unused-variable: to suppress warnings from gcc headers (gcc_version > variable, plugin-version.h) > > The infrastructure introduces a new Makefile target called gcc-plugins. It > supports all gcc versions from 4.5 to 6.0. The scripts/gcc-plugin.sh script > chooses the proper host compiler (gcc-4.7 can be built by either gcc or g++). > This script also checks the availability of the included headers in > tools/gcc/gcc-common.h. > > The gcc-common.h header contains frequently included headers for GCC plugins > and it has a compatibility layer for the supported gcc versions. > > Note that 'make clean' keeps the *.so files (only the distclean or mrproper > targets clean all) because they are needed for out-of-tree modules. > --- > Documentation/dontdiff | 1 + > Makefile | 41 ++- > arch/Kconfig | 10 + > arch/x86/Kconfig | 1 + > init/Makefile | 3 + > scripts/Makefile.build | 2 +- > scripts/Makefile.clean | 3 +- > scripts/Makefile.gcc-plugins | 26 ++ > scripts/Makefile.host | 69 +++- > scripts/gcc-plugin.sh | 51 +++ > scripts/link-vmlinux.sh | 2 +- > scripts/package/builddeb | 1 + > tools/gcc/Makefile | 15 + > tools/gcc/gcc-common.h | 794 +++++++++++++++++++++++++++++++++++++++++++ > 14 files changed, 1004 insertions(+), 15 deletions(-) > create mode 100644 scripts/Makefile.gcc-plugins > create mode 100644 scripts/gcc-plugin.sh > create mode 100644 tools/gcc/Makefile > create mode 100644 tools/gcc/gcc-common.h > > diff --git a/Documentation/dontdiff b/Documentation/dontdiff > index 8ea834f..5385cba 100644 > --- a/Documentation/dontdiff > +++ b/Documentation/dontdiff > @@ -3,6 +3,7 @@ > *.bc > *.bin > *.bz2 > +*.c.[012]*.* > *.cis > *.cpio > *.csp > diff --git a/Makefile b/Makefile > index 9092c16..82b1db1 100644 > --- a/Makefile > +++ b/Makefile > @@ -435,8 +435,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ > # Rules shared between *config targets and build targets > > # Basic helpers built in scripts/ > -PHONY += scripts_basic > -scripts_basic: > +PHONY += scripts_basic gcc-plugins > +scripts_basic: gcc-plugins > $(Q)$(MAKE) $(build)=scripts/basic > $(Q)rm -f .tmp_quiet_recordmcount > > @@ -623,6 +623,8 @@ endif > # Tell gcc to never replace conditional load with a non-conditional one > KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) > > +include scripts/Makefile.gcc-plugins > + > ifdef CONFIG_READABLE_ASM > # Disable optimizations that make assembler listings hard to read. > # reorder blocks reorders the control in the function > @@ -946,6 +948,8 @@ endif > > # The actual objects are generated when descending, > # make sure no implicit rule kicks in > +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; > > # Handle descending into subdirectories listed in $(vmlinux-dirs) > @@ -955,7 +959,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; > # Error messages still appears in the original language > > PHONY += $(vmlinux-dirs) > -$(vmlinux-dirs): prepare scripts > +$(vmlinux-dirs): gcc-plugins prepare scripts > $(Q)$(MAKE) $(build)=$@ > > define filechk_kernel.release > @@ -998,10 +1002,13 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ > > archprepare: archheaders archscripts prepare1 scripts_basic > > +prepare0: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +prepare0: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > prepare0: archprepare FORCE > $(Q)$(MAKE) $(build)=. > > # All the preparing.. > +prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) > prepare: prepare0 > > # Generate some files > @@ -1112,6 +1119,8 @@ all: modules > # using awk while concatenating to the final file. > > PHONY += modules > +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin > $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order > @$(kecho) ' Building modules, stage 2.'; > @@ -1127,7 +1136,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) > > # Target to prepare building external modules > PHONY += modules_prepare > -modules_prepare: prepare scripts > +modules_prepare: gcc-plugins prepare scripts > > # Target to install modules > PHONY += modules_install > @@ -1232,7 +1241,7 @@ distclean: mrproper > @find $(srctree) $(RCS_FIND_IGNORE) \ > \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ > -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ > - -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ > + -o -name '.*.rej' -o -name '*.so' -o -name '*%' -o -name 'core' \) \ > -type f -print | xargs rm -f > > > @@ -1399,6 +1408,8 @@ PHONY += $(module-dirs) modules > $(module-dirs): crmodverdir $(objtree)/Module.symvers > $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) > > +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > modules: $(module-dirs) > @$(kecho) ' Building modules, stage 2.'; > $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost > @@ -1540,17 +1551,21 @@ else > target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) > endif > > -%.s: %.c prepare scripts FORCE > +%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > +%.s: %.c gcc-plugins prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > %.i: %.c prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > -%.o: %.c prepare scripts FORCE > +%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > +%.o: %.c gcc-plugins prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > %.lst: %.c prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > -%.s: %.S prepare scripts FORCE > +%.s: %.S gcc-plugins prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > -%.o: %.S prepare scripts FORCE > +%.o: %.S gcc-plugins prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > %.symtypes: %.c prepare scripts FORCE > $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) > @@ -1562,11 +1577,15 @@ endif > $(build)=$(build-dir) > # Make sure the latest headers are built for Documentation > Documentation/: headers_install > -%/: prepare scripts FORCE > +%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > +%/: gcc-plugins prepare scripts FORCE > $(cmd_crmodverdir) > $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ > $(build)=$(build-dir) > -%.ko: prepare scripts FORCE > +%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) > +%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) > +%.ko: gcc-plugins prepare scripts FORCE > $(cmd_crmodverdir) > $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ > $(build)=$(build-dir) $(@:.ko=.o) > diff --git a/arch/Kconfig b/arch/Kconfig > index 155e6cd..a95e5b1 100644 > --- a/arch/Kconfig > +++ b/arch/Kconfig > @@ -357,6 +357,16 @@ config SECCOMP_FILTER > > See Documentation/prctl/seccomp_filter.txt for details. > > +menu "GCC plugins" > + > +config HAVE_GCC_PLUGINS > + bool > + help > + An arch should select this symbol if it supports building with > + gcc plugins. > + > +endmenu # "GCC plugins" > + > config HAVE_CC_STACKPROTECTOR > bool > help > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 248faa8..c2f96ec 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -157,6 +157,7 @@ config X86 > select VIRT_TO_BUS > select X86_DEV_DMA_OPS if X86_64 > select X86_FEATURE_NAMES if PROC_FS > + select HAVE_GCC_PLUGINS > > config INSTRUCTION_DECODER > def_bool y > diff --git a/init/Makefile b/init/Makefile > index 7bc47ee..6da2dc7 100644 > --- a/init/Makefile > +++ b/init/Makefile > @@ -2,6 +2,9 @@ > # Makefile for the linux kernel. > # > > +ccflags-y := $(GCC_PLUGINS_CFLAGS) > +asflags-y := $(GCC_PLUGINS_AFLAGS) > + > obj-y := main.o version.o mounts.o > ifneq ($(CONFIG_BLK_DEV_INITRD),y) > obj-y += noinitramfs.o > diff --git a/scripts/Makefile.build b/scripts/Makefile.build > index 2c47f9c..9d46008 100644 > --- a/scripts/Makefile.build > +++ b/scripts/Makefile.build > @@ -60,7 +60,7 @@ endif > endif > > # Do not include host rules unless needed > -ifneq ($(hostprogs-y)$(hostprogs-m),) > +ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),) > include scripts/Makefile.host > endif > > diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean > index 55c96cb..e4e88ab 100644 > --- a/scripts/Makefile.clean > +++ b/scripts/Makefile.clean > @@ -38,7 +38,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) > __clean-files := $(extra-y) $(extra-m) $(extra-) \ > $(always) $(targets) $(clean-files) \ > $(host-progs) \ > - $(hostprogs-y) $(hostprogs-m) $(hostprogs-) > + $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ > + $(hostlibs-y) $(hostlibs-m) $(hostlibs-) > > __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) > > diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins > new file mode 100644 > index 0000000..a60a88e > --- /dev/null > +++ b/scripts/Makefile.gcc-plugins > @@ -0,0 +1,26 @@ > +ifeq ($(call cc-ifversion, -ge, 0408, y), y) > +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)") > +else > +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)") > +endif > +ifneq ($(PLUGINCC),) > +export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS > +ifeq ($(KBUILD_EXTMOD),) > +gcc-plugins: > + $(Q)$(MAKE) $(build)=tools/gcc > +else > +gcc-plugins: ; > +endif > +else > +gcc-plugins: > +ifeq ($(call cc-ifversion, -ge, 0405, y), y) > + $(Q)echo "warning, your gcc installation does not support plugins, perhaps the necessary headers are missing?" These warnings weren't going to stderr. They should probably be using $(warning ...) instead of a shell echo. > +ifeq ($(call cc-ifversion, -ge, 0408, y), y) > + $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)" > +else > + $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)" Is there a reason for these to be running with -x? This makes it noisy when running with V=0 (the default). > +endif > +else > + $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least" > +endif > +endif > diff --git a/scripts/Makefile.host b/scripts/Makefile.host > index 133edfa..4d180d9 100644 > --- a/scripts/Makefile.host > +++ b/scripts/Makefile.host > @@ -20,7 +20,25 @@ > # Will compile qconf as a C++ program, and menu as a C program. > # They are linked as C++ code to the executable qconf > > +# hostprogs-y := conf > +# conf-objs := conf.o libkconfig.so > +# libkconfig-objs := expr.o type.o > +# Will create a shared library named libkconfig.so that consists of > +# expr.o and type.o (they are both compiled as C code and the object files > +# are made as position independent code). > +# conf.c is compiled as a C program, and conf.o is linked together with > +# libkconfig.so as the executable conf. > +# Note: Shared libraries consisting of C++ files are not supported > + > +# hostcc-option > +# Usage: cflags-y += $(call hostcc-option,-march=winchip-c6,-march=i586) > + > +hostcc-option = $(call try-run,\ > + $(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) > + > __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) > +__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m)) > +__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m)) > > # C code > # Executables compiled from a single .c file > @@ -42,6 +60,19 @@ host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m))) > # C++ Object (.o) files compiled from .cc files > host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) > > +# Shared libaries (only .c supported) > +# Shared libraries (.so) - all .so files referenced in "xxx-objs" > +host-cshlib := $(sort $(filter %.so, $(host-cobjs))) > +host-cshlib += $(sort $(filter %.so, $(__hostlibs))) > +host-cxxshlib := $(sort $(filter %.so, $(__hostcxxlibs))) > +# Remove .so files from "xxx-objs" > +host-cobjs := $(filter-out %.so,$(host-cobjs)) > +host-cxxobjs := $(filter-out %.so,$(host-cxxobjs)) > + > +# Object (.o) files used by the shared libaries > +host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs)))) > +host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs)))) > + > # output directory for programs/.o files > # hostprogs-y := tools/build may have been specified. > # Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation > @@ -56,6 +87,10 @@ host-cmulti := $(addprefix $(obj)/,$(host-cmulti)) > host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) > host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) > host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) > +host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) > +host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib)) > +host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) > +host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs)) > host-objdirs := $(addprefix $(obj)/,$(host-objdirs)) > > obj-dirs += $(host-objdirs) > @@ -124,5 +159,37 @@ quiet_cmd_host-cxxobjs = HOSTCXX $@ > $(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE > $(call if_changed_dep,host-cxxobjs) > > +# Compile .c file, create position independent .o file > +# host-cshobjs -> .o > +quiet_cmd_host-cshobjs = HOSTCC -fPIC $@ > + cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $< > +$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE > + $(call if_changed_dep,host-cshobjs) > + > +# Compile .c file, create position independent .o file > +# host-cxxshobjs -> .o > +quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@ > + cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $< > +$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE > + $(call if_changed_dep,host-cxxshobjs) > + > +# Link a shared library, based on position independent .o files > +# *.o -> .so shared library (host-cshlib) > +quiet_cmd_host-cshlib = HOSTLLD -shared $@ > + cmd_host-cshlib = $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \ > + $(addprefix $(obj)/,$($(@F:.so=-objs))) \ > + $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) > +$(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE > + $(call if_changed,host-cshlib) > + > +# Link a shared library, based on position independent .o files > +# *.o -> .so shared library (host-cxxshlib) > +quiet_cmd_host-cxxshlib = HOSTLLD -shared $@ > + cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \ > + $(addprefix $(obj)/,$($(@F:.so=-objs))) \ > + $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) > +$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE > + $(call if_changed,host-cxxshlib) > + > targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ > - $(host-cxxmulti) $(host-cxxobjs) > + $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs) > diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh > new file mode 100644 > index 0000000..eaa4fce > --- /dev/null > +++ b/scripts/gcc-plugin.sh > @@ -0,0 +1,51 @@ > +#!/bin/sh > +srctree=$(dirname "$0") > +gccplugins_dir=$($3 -print-file-name=plugin) > +plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/../tools/gcc -I"${gccplugins_dir}"/include 2>&1 <<EOF > +#include "gcc-common.h" > +#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX) > +#warning $2 CXX > +#else > +#warning $1 CC > +#endif > +EOF > +) > + > +if [ $? -ne 0 ] > +then > + exit 1 > +fi > + > +case "$plugincc" in > + *"$1 CC"*) > + echo "$1" > + exit 0 > + ;; > + > + *"$2 CXX"*) > + # the c++ compiler needs another test, see below > + ;; > + > + *) > + exit 1 > + ;; > +esac > + > +# we need a c++ compiler that supports the designated initializer GNU extension > +plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/../tools/gcc -I"${gccplugins_dir}"/include 2>&1 <<EOF > +#include "gcc-common.h" > +class test { > +public: > + int test; > +} test = { > + .test = 1 > +}; > +EOF > +) > + > +if [ $? -eq 0 ] > +then > + echo "$2" > + exit 0 > +fi > +exit 1 > diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh > index 49d61ad..69ee2cf 100755 > --- a/scripts/link-vmlinux.sh > +++ b/scripts/link-vmlinux.sh > @@ -184,7 +184,7 @@ else > fi; > > # final build of init/ > -${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init > +${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}" GCC_PLUGINS_AFLAGS="${GCC_PLUGINS_AFLAGS}" > > kallsymso="" > kallsyms_vmlinux="" > diff --git a/scripts/package/builddeb b/scripts/package/builddeb > index 6c3b038..54e0b5e 100755 > --- a/scripts/package/builddeb > +++ b/scripts/package/builddeb > @@ -326,6 +326,7 @@ fi > (cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles" > (cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles" > (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles" > +(cd $objtree; find tools/gcc -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles" > destdir=$kernel_headers_dir/usr/src/linux-headers-$version > mkdir -p "$destdir" > (cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -) > diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile > new file mode 100644 > index 0000000..b2d64af > --- /dev/null > +++ b/tools/gcc/Makefile > @@ -0,0 +1,15 @@ > +GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin) > + > +ifeq ($(PLUGINCC),$(HOSTCC)) > +HOSTLIBS := hostlibs > +HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb > +export HOST_EXTRACFLAGS > +else > +HOSTLIBS := hostcxxlibs > +HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti -fno-exceptions -fasynchronous-unwind-tables -ggdb -Wno-narrowing -Wno-unused-variable > +export HOST_EXTRACXXFLAGS > +endif > + > +export GCCPLUGINS_DIR HOSTLIBS > + > +always := $($(HOSTLIBS)-y) > diff --git a/tools/gcc/gcc-common.h b/tools/gcc/gcc-common.h > new file mode 100644 > index 0000000..355bb1a > --- /dev/null > +++ b/tools/gcc/gcc-common.h > @@ -0,0 +1,794 @@ > +#ifndef GCC_COMMON_H_INCLUDED > +#define GCC_COMMON_H_INCLUDED > + > +#include "bversion.h" > +#if BUILDING_GCC_VERSION >= 6000 > +#include "gcc-plugin.h" > +#else > +#include "plugin.h" > +#endif > +#include "plugin-version.h" > +#include "config.h" > +#include "system.h" > +#include "coretypes.h" > +#include "tm.h" > +#include "line-map.h" > +#include "input.h" > +#include "tree.h" > + > +#include "tree-inline.h" > +#include "version.h" > +#include "rtl.h" > +#include "tm_p.h" > +#include "flags.h" > +#include "hard-reg-set.h" > +#include "output.h" > +#include "except.h" > +#include "function.h" > +#include "toplev.h" > +#include "basic-block.h" > +#include "intl.h" > +#include "ggc.h" > +#include "timevar.h" > + > +#include "params.h" > + > +#if BUILDING_GCC_VERSION <= 4009 > +#include "pointer-set.h" > +#else > +#include "hash-map.h" > +#endif > + > +#include "emit-rtl.h" > +#include "debug.h" > +#include "target.h" > +#include "langhooks.h" > +#include "cfgloop.h" > +#include "cgraph.h" > +#include "opts.h" > + > +#if BUILDING_GCC_VERSION == 4005 > +#include <sys/mman.h> > +#endif > + > +#if BUILDING_GCC_VERSION >= 4007 > +#include "tree-pretty-print.h" > +#include "gimple-pretty-print.h" > +#endif > + > +#if BUILDING_GCC_VERSION >= 4006 > +#include "c-family/c-common.h" > +#else > +#include "c-common.h" > +#endif > + > +#if BUILDING_GCC_VERSION <= 4008 > +#include "tree-flow.h" > +#else > +#include "tree-cfgcleanup.h" > +#include "tree-ssa-operands.h" > +#include "tree-into-ssa.h" > +#endif > + > +#if BUILDING_GCC_VERSION >= 4008 > +#include "is-a.h" > +#endif > + > +#include "diagnostic.h" > +#include "tree-dump.h" > +#include "tree-pass.h" > +#include "predict.h" > +#include "ipa-utils.h" > + > +#if BUILDING_GCC_VERSION >= 4009 > +#include "attribs.h" > +#include "varasm.h" > +#include "stor-layout.h" > +#include "internal-fn.h" > +#include "gimple-expr.h" > +#include "gimple-fold.h" > +#include "context.h" > +#include "tree-ssa-alias.h" > +#include "tree-ssa.h" > +#include "stringpool.h" > +#include "tree-ssanames.h" > +#include "print-tree.h" > +#include "tree-eh.h" > +#include "stmt.h" > +#include "gimplify.h" > +#endif > + > +#include "gimple.h" > + > +#if BUILDING_GCC_VERSION >= 4009 > +#include "tree-ssa-operands.h" > +#include "tree-phinodes.h" > +#include "tree-cfg.h" > +#include "gimple-iterator.h" > +#include "gimple-ssa.h" > +#include "ssa-iterators.h" > +#endif > + > +#if BUILDING_GCC_VERSION >= 4007 > +#else > +#endif > +#if BUILDING_GCC_VERSION >= 5000 > +#include "builtins.h" > +#endif > + > +//#include "expr.h" where are you... > +extern rtx emit_move_insn(rtx x, rtx y); > + > +// missing from basic_block.h... > +extern void debug_dominance_info(enum cdi_direction dir); > +extern void debug_dominance_tree(enum cdi_direction dir, basic_block root); > + > +#if BUILDING_GCC_VERSION == 4006 > +extern void debug_gimple_stmt(gimple); > +extern void debug_gimple_seq(gimple_seq); > +extern void print_gimple_seq(FILE *, gimple_seq, int, int); > +extern void print_gimple_stmt(FILE *, gimple, int, int); > +extern void print_gimple_expr(FILE *, gimple, int, int); > +extern void dump_gimple_stmt(pretty_printer *, gimple, int, int); > +#endif > + > +#ifdef __cplusplus > +static inline void debug_tree(const_tree t) > +{ > + debug_tree(CONST_CAST_TREE(t)); > +} > + > +static inline void debug_gimple_stmt(const_gimple s) > +{ > + debug_gimple_stmt(CONST_CAST_GIMPLE(s)); > +} > +#else > +#define debug_tree(t) debug_tree(CONST_CAST_TREE(t)) > +#define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s)) > +#endif > + > +#define __unused __attribute__((__unused__)) > + > +#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node)) > +#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node)) > +#define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node)) > +#define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node)) > + > +// should come from c-tree.h if only it were installed for gcc 4.5... > +#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE) > + > +#if BUILDING_GCC_VERSION == 4005 > +#define FOR_EACH_LOCAL_DECL(FUN, I, D) for (tree vars = (FUN)->local_decls, (I) = 0; vars && ((D) = TREE_VALUE(vars)); vars = TREE_CHAIN(vars), (I)++) > +#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE))) > +#define FOR_EACH_VEC_ELT(T, V, I, P) for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I)) > +#define TODO_rebuild_cgraph_edges 0 > +#define SCOPE_FILE_SCOPE_P(EXP) (!(EXP)) > + > +#ifndef O_BINARY > +#define O_BINARY 0 > +#endif > + > +typedef struct varpool_node *varpool_node_ptr; > + > +static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code) > +{ > + tree fndecl; > + > + if (!is_gimple_call(stmt)) > + return false; > + fndecl = gimple_call_fndecl(stmt); > + if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL) > + return false; > + return DECL_FUNCTION_CODE(fndecl) == code; > +} > + > +static inline bool is_simple_builtin(tree decl) > +{ > + if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL) > + return false; > + > + switch (DECL_FUNCTION_CODE(decl)) { > + /* Builtins that expand to constants. */ > + case BUILT_IN_CONSTANT_P: > + case BUILT_IN_EXPECT: > + case BUILT_IN_OBJECT_SIZE: > + case BUILT_IN_UNREACHABLE: > + /* Simple register moves or loads from stack. */ > + case BUILT_IN_RETURN_ADDRESS: > + case BUILT_IN_EXTRACT_RETURN_ADDR: > + case BUILT_IN_FROB_RETURN_ADDR: > + case BUILT_IN_RETURN: > + case BUILT_IN_AGGREGATE_INCOMING_ADDRESS: > + case BUILT_IN_FRAME_ADDRESS: > + case BUILT_IN_VA_END: > + case BUILT_IN_STACK_SAVE: > + case BUILT_IN_STACK_RESTORE: > + /* Exception state returns or moves registers around. */ > + case BUILT_IN_EH_FILTER: > + case BUILT_IN_EH_POINTER: > + case BUILT_IN_EH_COPY_VALUES: > + return true; > + > + default: > + return false; > + } > +} > + > +static inline void add_local_decl(struct function *fun, tree d) > +{ > + gcc_assert(TREE_CODE(d) == VAR_DECL); > + fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls); > +} > +#endif > + > +#if BUILDING_GCC_VERSION <= 4006 > +#define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN) > +#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP) > +#define EDGE_PRESERVE 0ULL > +#define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x" > +#define flag_fat_lto_objects true > + > +#define get_random_seed(noinit) ({ \ > + unsigned HOST_WIDE_INT seed; \ > + sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed); \ > + seed * seed; }) > + > +#define int_const_binop(code, arg1, arg2) int_const_binop((code), (arg1), (arg2), 0) > + > +static inline bool gimple_clobber_p(gimple s __unused) > +{ > + return false; > +} > + > +static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt) > +{ > + unsigned i; > + > + for (i = 0; i < gimple_asm_nclobbers(stmt); i++) { > + tree op = gimple_asm_clobber_op(stmt, i); > + if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory")) > + return true; > + } > + > + return false; > +} > + > +static inline tree builtin_decl_implicit(enum built_in_function fncode) > +{ > + return implicit_built_in_decls[fncode]; > +} > + > +static inline int ipa_reverse_postorder(struct cgraph_node **order) > +{ > + return cgraph_postorder(order); > +} > + > +static inline struct cgraph_node *cgraph_get_create_node(tree decl) > +{ > + struct cgraph_node *node = cgraph_get_node(decl); > + > + return node ? node : cgraph_node(decl); > +} > + > +static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node) > +{ > + return node->analyzed && !node->thunk.thunk_p && !node->alias; > +} > + > +static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void) > +{ > + struct cgraph_node *node; > + > + for (node = cgraph_nodes; node; node = node->next) > + if (cgraph_function_with_gimple_body_p(node)) > + return node; > + return NULL; > +} > + > +static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node) > +{ > + for (node = node->next; node; node = node->next) > + if (cgraph_function_with_gimple_body_p(node)) > + return node; > + return NULL; > +} > + > +#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \ > + for ((node) = cgraph_first_function_with_gimple_body(); (node); \ > + (node) = cgraph_next_function_with_gimple_body(node)) > + > +static inline void varpool_add_new_variable(tree decl) > +{ > + varpool_finalize_decl(decl); > +} > +#endif > + > +#if BUILDING_GCC_VERSION <= 4007 > +#define FOR_EACH_FUNCTION(node) for (node = cgraph_nodes; node; node = node->next) > +#define FOR_EACH_VARIABLE(node) for (node = varpool_nodes; node; node = node->next) > +#define PROP_loops 0 > +#define NODE_SYMBOL(node) (node) > +#define NODE_DECL(node) (node)->decl > +#define INSN_LOCATION(INSN) RTL_LOCATION(INSN) > + > +static inline int bb_loop_depth(const_basic_block bb) > +{ > + return bb->loop_father ? loop_depth(bb->loop_father) : 0; > +} > + > +static inline bool gimple_store_p(gimple gs) > +{ > + tree lhs = gimple_get_lhs(gs); > + return lhs && !is_gimple_reg(lhs); > +} > +#endif > + > +#if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008 > +static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n) > +{ > + return cgraph_alias_aliased_node(n); > +} > +#endif > + > +#if BUILDING_GCC_VERSION >= 4007 && BUILDING_GCC_VERSION <= 4009 > +#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \ > + cgraph_create_edge((caller), (callee), (call_stmt), (count), (freq)) > +#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \ > + cgraph_create_edge_including_clones((caller), (callee), (old_call_stmt), (call_stmt), (count), (freq), (reason)) > +#endif > + > +#if BUILDING_GCC_VERSION <= 4008 > +#define ENTRY_BLOCK_PTR_FOR_FN(FN) ENTRY_BLOCK_PTR_FOR_FUNCTION(FN) > +#define EXIT_BLOCK_PTR_FOR_FN(FN) EXIT_BLOCK_PTR_FOR_FUNCTION(FN) > +#define basic_block_info_for_fn(FN) ((FN)->cfg->x_basic_block_info) > +#define n_basic_blocks_for_fn(FN) ((FN)->cfg->x_n_basic_blocks) > +#define n_edges_for_fn(FN) ((FN)->cfg->x_n_edges) > +#define last_basic_block_for_fn(FN) ((FN)->cfg->x_last_basic_block) > +#define label_to_block_map_for_fn(FN) ((FN)->cfg->x_label_to_block_map) > +#define profile_status_for_fn(FN) ((FN)->cfg->x_profile_status) > +#define BASIC_BLOCK_FOR_FN(FN, N) BASIC_BLOCK_FOR_FUNCTION((FN), (N)) > +#define NODE_IMPLICIT_ALIAS(node) (node)->same_body_alias > +#define VAR_P(NODE) (TREE_CODE(NODE) == VAR_DECL) > + > +static inline bool tree_fits_shwi_p(const_tree t) > +{ > + if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST) > + return false; > + > + if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0) > + return true; > + > + if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t))) > + return true; > + > + return false; > +} > + > +static inline bool tree_fits_uhwi_p(const_tree t) > +{ > + if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST) > + return false; > + > + return TREE_INT_CST_HIGH(t) == 0; > +} > + > +static inline HOST_WIDE_INT tree_to_shwi(const_tree t) > +{ > + gcc_assert(tree_fits_shwi_p(t)); > + return TREE_INT_CST_LOW(t); > +} > + > +static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t) > +{ > + gcc_assert(tree_fits_uhwi_p(t)); > + return TREE_INT_CST_LOW(t); > +} > + > +static inline const char *get_tree_code_name(enum tree_code code) > +{ > + gcc_assert(code < MAX_TREE_CODES); > + return tree_code_name[code]; > +} > + > +#define ipa_remove_stmt_references(cnode, stmt) > + > +typedef union gimple_statement_d gasm; > +typedef union gimple_statement_d gassign; > +typedef union gimple_statement_d gcall; > +typedef union gimple_statement_d gcond; > +typedef union gimple_statement_d gdebug; > +typedef union gimple_statement_d gphi; > +typedef union gimple_statement_d greturn; > + > +static inline gasm *as_a_gasm(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gasm *as_a_const_gasm(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gassign *as_a_gassign(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gassign *as_a_const_gassign(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gcall *as_a_gcall(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gcall *as_a_const_gcall(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gcond *as_a_gcond(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gcond *as_a_const_gcond(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gdebug *as_a_gdebug(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gdebug *as_a_const_gdebug(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gphi *as_a_gphi(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gphi *as_a_const_gphi(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline greturn *as_a_greturn(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const greturn *as_a_const_greturn(const_gimple stmt) > +{ > + return stmt; > +} > +#endif > + > +#if BUILDING_GCC_VERSION == 4008 > +#define NODE_SYMBOL(node) (&(node)->symbol) > +#define NODE_DECL(node) (node)->symbol.decl > +#endif > + > +#if BUILDING_GCC_VERSION >= 4008 > +#define add_referenced_var(var) > +#define mark_sym_for_renaming(var) > +#define varpool_mark_needed_node(node) > +#define create_var_ann(var) > +#define TODO_dump_func 0 > +#define TODO_dump_cgraph 0 > +#endif > + > +#if BUILDING_GCC_VERSION <= 4009 > +#define TODO_verify_il 0 > +#define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE > + > +#define section_name_prefix LTO_SECTION_NAME_PREFIX > +#define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__) > + > +typedef struct rtx_def rtx_insn; > + > +static inline void set_decl_section_name(tree node, const char *value) > +{ > + DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value); > +} > +#endif > + > +#if BUILDING_GCC_VERSION == 4009 > +typedef struct gimple_statement_asm gasm; > +typedef struct gimple_statement_base gassign; > +typedef struct gimple_statement_call gcall; > +typedef struct gimple_statement_base gcond; > +typedef struct gimple_statement_base gdebug; > +typedef struct gimple_statement_phi gphi; > +typedef struct gimple_statement_base greturn; > + > +static inline gasm *as_a_gasm(gimple stmt) > +{ > + return as_a<gasm>(stmt); > +} > + > +static inline const gasm *as_a_const_gasm(const_gimple stmt) > +{ > + return as_a<const gasm>(stmt); > +} > + > +static inline gassign *as_a_gassign(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gassign *as_a_const_gassign(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gcall *as_a_gcall(gimple stmt) > +{ > + return as_a<gcall>(stmt); > +} > + > +static inline const gcall *as_a_const_gcall(const_gimple stmt) > +{ > + return as_a<const gcall>(stmt); > +} > + > +static inline gcond *as_a_gcond(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gcond *as_a_const_gcond(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gdebug *as_a_gdebug(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const gdebug *as_a_const_gdebug(const_gimple stmt) > +{ > + return stmt; > +} > + > +static inline gphi *as_a_gphi(gimple stmt) > +{ > + return as_a<gphi>(stmt); > +} > + > +static inline const gphi *as_a_const_gphi(const_gimple stmt) > +{ > + return as_a<const gphi>(stmt); > +} > + > +static inline greturn *as_a_greturn(gimple stmt) > +{ > + return stmt; > +} > + > +static inline const greturn *as_a_const_greturn(const_gimple stmt) > +{ > + return stmt; > +} > +#endif > + > +#if BUILDING_GCC_VERSION >= 4009 > +#define TODO_ggc_collect 0 > +#define NODE_SYMBOL(node) (node) > +#define NODE_DECL(node) (node)->decl > +#define cgraph_node_name(node) (node)->name() > +#define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias > +#endif > + > +#if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000 > +// gimple related > +template <> > +template <> > +inline bool is_a_helper<const gassign *>::test(const_gimple gs) > +{ > + return gs->code == GIMPLE_ASSIGN; > +} > +#endif > + > +#if BUILDING_GCC_VERSION >= 5000 > +#define TODO_verify_ssa TODO_verify_il > +#define TODO_verify_flow TODO_verify_il > +#define TODO_verify_stmts TODO_verify_il > +#define TODO_verify_rtl_sharing TODO_verify_il > + > +#define INSN_DELETED_P(insn) (insn)->deleted() > + > +// symtab/cgraph related > +#define debug_cgraph_node(node) (node)->debug() > +#define cgraph_get_node(decl) cgraph_node::get(decl) > +#define cgraph_get_create_node(decl) cgraph_node::get_create(decl) > +#define cgraph_n_nodes symtab->cgraph_count > +#define cgraph_max_uid symtab->cgraph_max_uid > +#define varpool_get_node(decl) varpool_node::get(decl) > + > +#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \ > + (caller)->create_edge((callee), (call_stmt), (count), (freq)) > +#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \ > + (caller)->create_edge_including_clones((callee), (old_call_stmt), (call_stmt), (count), (freq), (reason)) > + > +typedef struct cgraph_node *cgraph_node_ptr; > +typedef struct cgraph_edge *cgraph_edge_p; > +typedef struct varpool_node *varpool_node_ptr; > + > +static inline void change_decl_assembler_name(tree decl, tree name) > +{ > + symtab->change_decl_assembler_name(decl, name); > +} > + > +static inline void varpool_finalize_decl(tree decl) > +{ > + varpool_node::finalize_decl(decl); > +} > + > +static inline void varpool_add_new_variable(tree decl) > +{ > + varpool_node::add(decl); > +} > + > +static inline unsigned int rebuild_cgraph_edges(void) > +{ > + return cgraph_edge::rebuild_edges(); > +} > + > +static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability) > +{ > + return node->function_symbol(availability); > +} > + > +static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL) > +{ > + return node->ultimate_alias_target(availability); > +} > + > +static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node) > +{ > + return node->only_called_directly_p(); > +} > + > +static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node) > +{ > + return node->get_availability(); > +} > + > +static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node) > +{ > + return node->get_alias_target(); > +} > + > +static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data) > +{ > + return symtab->add_cgraph_insertion_hook(hook, data); > +} > + > +static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry) > +{ > + symtab->remove_cgraph_insertion_hook(entry); > +} > + > +static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data) > +{ > + return symtab->add_cgraph_removal_hook(hook, data); > +} > + > +static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry) > +{ > + symtab->remove_cgraph_removal_hook(entry); > +} > + > +static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data) > +{ > + return symtab->add_cgraph_duplication_hook(hook, data); > +} > + > +static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry) > +{ > + symtab->remove_cgraph_duplication_hook(entry); > +} > + > +#if BUILDING_GCC_VERSION >= 6000 > +typedef gimple *gimple_ptr; > +typedef const gimple *const_gimple; > +#define gimple gimple_ptr > +#endif > + > +// gimple related > +static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL) > +{ > + return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT); > +} > + > +template <> > +template <> > +inline bool is_a_helper<const greturn *>::test(const_gimple gs) > +{ > + return gs->code == GIMPLE_RETURN; > +} > + > +static inline gasm *as_a_gasm(gimple stmt) > +{ > + return as_a<gasm *>(stmt); > +} > + > +static inline const gasm *as_a_const_gasm(const_gimple stmt) > +{ > + return as_a<const gasm *>(stmt); > +} > + > +static inline gassign *as_a_gassign(gimple stmt) > +{ > + return as_a<gassign *>(stmt); > +} > + > +static inline const gassign *as_a_const_gassign(const_gimple stmt) > +{ > + return as_a<const gassign *>(stmt); > +} > + > +static inline gcall *as_a_gcall(gimple stmt) > +{ > + return as_a<gcall *>(stmt); > +} > + > +static inline const gcall *as_a_const_gcall(const_gimple stmt) > +{ > + return as_a<const gcall *>(stmt); > +} > + > +static inline gphi *as_a_gphi(gimple stmt) > +{ > + return as_a<gphi *>(stmt); > +} > + > +static inline const gphi *as_a_const_gphi(const_gimple stmt) > +{ > + return as_a<const gphi *>(stmt); > +} > + > +static inline greturn *as_a_greturn(gimple stmt) > +{ > + return as_a<greturn *>(stmt); > +} > + > +static inline const greturn *as_a_const_greturn(const_gimple stmt) > +{ > + return as_a<const greturn *>(stmt); > +} > + > +// IPA/LTO related > +#define ipa_ref_list_referring_iterate(L,I,P) (L)->referring.iterate((I), &(P)) > +#define ipa_ref_list_reference_iterate(L,I,P) (L)->reference.iterate((I), &(P)) > + > +static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref) > +{ > + return dyn_cast<cgraph_node_ptr>(ref->referring); > +} > + > +static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt) > +{ > + referring_node->remove_stmt_references(stmt); > +} > +#endif > + > +#if BUILDING_GCC_VERSION < 6000 > +#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning) get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning) > +#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1)) > +#endif > + > +#if BUILDING_GCC_VERSION >= 6000 > +#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1)) > +#endif > + > +#endif > -- > 2.4.1 > -Kees
> > +ifeq ($(call cc-ifversion, -ge, 0408, y), y) > > + $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)" > > +else > > + $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)" > > Is there a reason for these to be running with -x? This makes it noisy > when running with V=0 (the default). I think -x is useful, it prints out e.g., which headers are missing. gcc-plugin.sh with -x runs only when there is something wrong (as you can see it in the kbuild test bot mails).
diff --git a/Documentation/dontdiff b/Documentation/dontdiff index 8ea834f..5385cba 100644 --- a/Documentation/dontdiff +++ b/Documentation/dontdiff @@ -3,6 +3,7 @@ *.bc *.bin *.bz2 +*.c.[012]*.* *.cis *.cpio *.csp diff --git a/Makefile b/Makefile index 9092c16..82b1db1 100644 --- a/Makefile +++ b/Makefile @@ -435,8 +435,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ # Rules shared between *config targets and build targets # Basic helpers built in scripts/ -PHONY += scripts_basic -scripts_basic: +PHONY += scripts_basic gcc-plugins +scripts_basic: gcc-plugins $(Q)$(MAKE) $(build)=scripts/basic $(Q)rm -f .tmp_quiet_recordmcount @@ -623,6 +623,8 @@ endif # Tell gcc to never replace conditional load with a non-conditional one KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) +include scripts/Makefile.gcc-plugins + ifdef CONFIG_READABLE_ASM # Disable optimizations that make assembler listings hard to read. # reorder blocks reorders the control in the function @@ -946,6 +948,8 @@ endif # The actual objects are generated when descending, # make sure no implicit rule kicks in +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; # Handle descending into subdirectories listed in $(vmlinux-dirs) @@ -955,7 +959,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; # Error messages still appears in the original language PHONY += $(vmlinux-dirs) -$(vmlinux-dirs): prepare scripts +$(vmlinux-dirs): gcc-plugins prepare scripts $(Q)$(MAKE) $(build)=$@ define filechk_kernel.release @@ -998,10 +1002,13 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ archprepare: archheaders archscripts prepare1 scripts_basic +prepare0: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +prepare0: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) prepare0: archprepare FORCE $(Q)$(MAKE) $(build)=. # All the preparing.. +prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) prepare: prepare0 # Generate some files @@ -1112,6 +1119,8 @@ all: modules # using awk while concatenating to the final file. PHONY += modules +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order @$(kecho) ' Building modules, stage 2.'; @@ -1127,7 +1136,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) # Target to prepare building external modules PHONY += modules_prepare -modules_prepare: prepare scripts +modules_prepare: gcc-plugins prepare scripts # Target to install modules PHONY += modules_install @@ -1232,7 +1241,7 @@ distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ - -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ + -o -name '.*.rej' -o -name '*.so' -o -name '*%' -o -name 'core' \) \ -type f -print | xargs rm -f @@ -1399,6 +1408,8 @@ PHONY += $(module-dirs) modules $(module-dirs): crmodverdir $(objtree)/Module.symvers $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) modules: $(module-dirs) @$(kecho) ' Building modules, stage 2.'; $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost @@ -1540,17 +1551,21 @@ else target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) endif -%.s: %.c prepare scripts FORCE +%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) +%.s: %.c gcc-plugins prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.i: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) -%.o: %.c prepare scripts FORCE +%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) +%.o: %.c gcc-plugins prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.lst: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) -%.s: %.S prepare scripts FORCE +%.s: %.S gcc-plugins prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) -%.o: %.S prepare scripts FORCE +%.o: %.S gcc-plugins prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) @@ -1562,11 +1577,15 @@ endif $(build)=$(build-dir) # Make sure the latest headers are built for Documentation Documentation/: headers_install -%/: prepare scripts FORCE +%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) +%/: gcc-plugins prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) -%.ko: prepare scripts FORCE +%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) +%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) +%.ko: gcc-plugins prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) $(@:.ko=.o) diff --git a/arch/Kconfig b/arch/Kconfig index 155e6cd..a95e5b1 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -357,6 +357,16 @@ config SECCOMP_FILTER See Documentation/prctl/seccomp_filter.txt for details. +menu "GCC plugins" + +config HAVE_GCC_PLUGINS + bool + help + An arch should select this symbol if it supports building with + gcc plugins. + +endmenu # "GCC plugins" + config HAVE_CC_STACKPROTECTOR bool help diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 248faa8..c2f96ec 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -157,6 +157,7 @@ config X86 select VIRT_TO_BUS select X86_DEV_DMA_OPS if X86_64 select X86_FEATURE_NAMES if PROC_FS + select HAVE_GCC_PLUGINS config INSTRUCTION_DECODER def_bool y diff --git a/init/Makefile b/init/Makefile index 7bc47ee..6da2dc7 100644 --- a/init/Makefile +++ b/init/Makefile @@ -2,6 +2,9 @@ # Makefile for the linux kernel. # +ccflags-y := $(GCC_PLUGINS_CFLAGS) +asflags-y := $(GCC_PLUGINS_AFLAGS) + obj-y := main.o version.o mounts.o ifneq ($(CONFIG_BLK_DEV_INITRD),y) obj-y += noinitramfs.o diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 2c47f9c..9d46008 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -60,7 +60,7 @@ endif endif # Do not include host rules unless needed -ifneq ($(hostprogs-y)$(hostprogs-m),) +ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),) include scripts/Makefile.host endif diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 55c96cb..e4e88ab 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -38,7 +38,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) __clean-files := $(extra-y) $(extra-m) $(extra-) \ $(always) $(targets) $(clean-files) \ $(host-progs) \ - $(hostprogs-y) $(hostprogs-m) $(hostprogs-) + $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ + $(hostlibs-y) $(hostlibs-m) $(hostlibs-) __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins new file mode 100644 index 0000000..a60a88e --- /dev/null +++ b/scripts/Makefile.gcc-plugins @@ -0,0 +1,26 @@ +ifeq ($(call cc-ifversion, -ge, 0408, y), y) +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)") +else +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)") +endif +ifneq ($(PLUGINCC),) +export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS +ifeq ($(KBUILD_EXTMOD),) +gcc-plugins: + $(Q)$(MAKE) $(build)=tools/gcc +else +gcc-plugins: ; +endif +else +gcc-plugins: +ifeq ($(call cc-ifversion, -ge, 0405, y), y) + $(Q)echo "warning, your gcc installation does not support plugins, perhaps the necessary headers are missing?" +ifeq ($(call cc-ifversion, -ge, 0408, y), y) + $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)" +else + $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)" +endif +else + $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least" +endif +endif diff --git a/scripts/Makefile.host b/scripts/Makefile.host index 133edfa..4d180d9 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -20,7 +20,25 @@ # Will compile qconf as a C++ program, and menu as a C program. # They are linked as C++ code to the executable qconf +# hostprogs-y := conf +# conf-objs := conf.o libkconfig.so +# libkconfig-objs := expr.o type.o +# Will create a shared library named libkconfig.so that consists of +# expr.o and type.o (they are both compiled as C code and the object files +# are made as position independent code). +# conf.c is compiled as a C program, and conf.o is linked together with +# libkconfig.so as the executable conf. +# Note: Shared libraries consisting of C++ files are not supported + +# hostcc-option +# Usage: cflags-y += $(call hostcc-option,-march=winchip-c6,-march=i586) + +hostcc-option = $(call try-run,\ + $(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) + __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) +__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m)) +__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m)) # C code # Executables compiled from a single .c file @@ -42,6 +60,19 @@ host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m))) # C++ Object (.o) files compiled from .cc files host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) +# Shared libaries (only .c supported) +# Shared libraries (.so) - all .so files referenced in "xxx-objs" +host-cshlib := $(sort $(filter %.so, $(host-cobjs))) +host-cshlib += $(sort $(filter %.so, $(__hostlibs))) +host-cxxshlib := $(sort $(filter %.so, $(__hostcxxlibs))) +# Remove .so files from "xxx-objs" +host-cobjs := $(filter-out %.so,$(host-cobjs)) +host-cxxobjs := $(filter-out %.so,$(host-cxxobjs)) + +# Object (.o) files used by the shared libaries +host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs)))) +host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs)))) + # output directory for programs/.o files # hostprogs-y := tools/build may have been specified. # Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation @@ -56,6 +87,10 @@ host-cmulti := $(addprefix $(obj)/,$(host-cmulti)) host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) +host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) +host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib)) +host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) +host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs)) host-objdirs := $(addprefix $(obj)/,$(host-objdirs)) obj-dirs += $(host-objdirs) @@ -124,5 +159,37 @@ quiet_cmd_host-cxxobjs = HOSTCXX $@ $(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE $(call if_changed_dep,host-cxxobjs) +# Compile .c file, create position independent .o file +# host-cshobjs -> .o +quiet_cmd_host-cshobjs = HOSTCC -fPIC $@ + cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $< +$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE + $(call if_changed_dep,host-cshobjs) + +# Compile .c file, create position independent .o file +# host-cxxshobjs -> .o +quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@ + cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $< +$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE + $(call if_changed_dep,host-cxxshobjs) + +# Link a shared library, based on position independent .o files +# *.o -> .so shared library (host-cshlib) +quiet_cmd_host-cshlib = HOSTLLD -shared $@ + cmd_host-cshlib = $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \ + $(addprefix $(obj)/,$($(@F:.so=-objs))) \ + $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) +$(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE + $(call if_changed,host-cshlib) + +# Link a shared library, based on position independent .o files +# *.o -> .so shared library (host-cxxshlib) +quiet_cmd_host-cxxshlib = HOSTLLD -shared $@ + cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \ + $(addprefix $(obj)/,$($(@F:.so=-objs))) \ + $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) +$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE + $(call if_changed,host-cxxshlib) + targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ - $(host-cxxmulti) $(host-cxxobjs) + $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs) diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh new file mode 100644 index 0000000..eaa4fce --- /dev/null +++ b/scripts/gcc-plugin.sh @@ -0,0 +1,51 @@ +#!/bin/sh +srctree=$(dirname "$0") +gccplugins_dir=$($3 -print-file-name=plugin) +plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/../tools/gcc -I"${gccplugins_dir}"/include 2>&1 <<EOF +#include "gcc-common.h" +#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX) +#warning $2 CXX +#else +#warning $1 CC +#endif +EOF +) + +if [ $? -ne 0 ] +then + exit 1 +fi + +case "$plugincc" in + *"$1 CC"*) + echo "$1" + exit 0 + ;; + + *"$2 CXX"*) + # the c++ compiler needs another test, see below + ;; + + *) + exit 1 + ;; +esac + +# we need a c++ compiler that supports the designated initializer GNU extension +plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/../tools/gcc -I"${gccplugins_dir}"/include 2>&1 <<EOF +#include "gcc-common.h" +class test { +public: + int test; +} test = { + .test = 1 +}; +EOF +) + +if [ $? -eq 0 ] +then + echo "$2" + exit 0 +fi +exit 1 diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 49d61ad..69ee2cf 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -184,7 +184,7 @@ else fi; # final build of init/ -${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init +${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}" GCC_PLUGINS_AFLAGS="${GCC_PLUGINS_AFLAGS}" kallsymso="" kallsyms_vmlinux="" diff --git a/scripts/package/builddeb b/scripts/package/builddeb index 6c3b038..54e0b5e 100755 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -326,6 +326,7 @@ fi (cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles" (cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles" (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles" +(cd $objtree; find tools/gcc -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles" destdir=$kernel_headers_dir/usr/src/linux-headers-$version mkdir -p "$destdir" (cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -) diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile new file mode 100644 index 0000000..b2d64af --- /dev/null +++ b/tools/gcc/Makefile @@ -0,0 +1,15 @@ +GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin) + +ifeq ($(PLUGINCC),$(HOSTCC)) +HOSTLIBS := hostlibs +HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb +export HOST_EXTRACFLAGS +else +HOSTLIBS := hostcxxlibs +HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti -fno-exceptions -fasynchronous-unwind-tables -ggdb -Wno-narrowing -Wno-unused-variable +export HOST_EXTRACXXFLAGS +endif + +export GCCPLUGINS_DIR HOSTLIBS + +always := $($(HOSTLIBS)-y) diff --git a/tools/gcc/gcc-common.h b/tools/gcc/gcc-common.h new file mode 100644 index 0000000..355bb1a --- /dev/null +++ b/tools/gcc/gcc-common.h @@ -0,0 +1,794 @@ +#ifndef GCC_COMMON_H_INCLUDED +#define GCC_COMMON_H_INCLUDED + +#include "bversion.h" +#if BUILDING_GCC_VERSION >= 6000 +#include "gcc-plugin.h" +#else +#include "plugin.h" +#endif +#include "plugin-version.h" +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" +#include "line-map.h" +#include "input.h" +#include "tree.h" + +#include "tree-inline.h" +#include "version.h" +#include "rtl.h" +#include "tm_p.h" +#include "flags.h" +#include "hard-reg-set.h" +#include "output.h" +#include "except.h" +#include "function.h" +#include "toplev.h" +#include "basic-block.h" +#include "intl.h" +#include "ggc.h" +#include "timevar.h" + +#include "params.h" + +#if BUILDING_GCC_VERSION <= 4009 +#include "pointer-set.h" +#else +#include "hash-map.h" +#endif + +#include "emit-rtl.h" +#include "debug.h" +#include "target.h" +#include "langhooks.h" +#include "cfgloop.h" +#include "cgraph.h" +#include "opts.h" + +#if BUILDING_GCC_VERSION == 4005 +#include <sys/mman.h> +#endif + +#if BUILDING_GCC_VERSION >= 4007 +#include "tree-pretty-print.h" +#include "gimple-pretty-print.h" +#endif + +#if BUILDING_GCC_VERSION >= 4006 +#include "c-family/c-common.h" +#else +#include "c-common.h" +#endif + +#if BUILDING_GCC_VERSION <= 4008 +#include "tree-flow.h" +#else +#include "tree-cfgcleanup.h" +#include "tree-ssa-operands.h" +#include "tree-into-ssa.h" +#endif + +#if BUILDING_GCC_VERSION >= 4008 +#include "is-a.h" +#endif + +#include "diagnostic.h" +#include "tree-dump.h" +#include "tree-pass.h" +#include "predict.h" +#include "ipa-utils.h" + +#if BUILDING_GCC_VERSION >= 4009 +#include "attribs.h" +#include "varasm.h" +#include "stor-layout.h" +#include "internal-fn.h" +#include "gimple-expr.h" +#include "gimple-fold.h" +#include "context.h" +#include "tree-ssa-alias.h" +#include "tree-ssa.h" +#include "stringpool.h" +#include "tree-ssanames.h" +#include "print-tree.h" +#include "tree-eh.h" +#include "stmt.h" +#include "gimplify.h" +#endif + +#include "gimple.h" + +#if BUILDING_GCC_VERSION >= 4009 +#include "tree-ssa-operands.h" +#include "tree-phinodes.h" +#include "tree-cfg.h" +#include "gimple-iterator.h" +#include "gimple-ssa.h" +#include "ssa-iterators.h" +#endif + +#if BUILDING_GCC_VERSION >= 4007 +#else +#endif +#if BUILDING_GCC_VERSION >= 5000 +#include "builtins.h" +#endif + +//#include "expr.h" where are you... +extern rtx emit_move_insn(rtx x, rtx y); + +// missing from basic_block.h... +extern void debug_dominance_info(enum cdi_direction dir); +extern void debug_dominance_tree(enum cdi_direction dir, basic_block root); + +#if BUILDING_GCC_VERSION == 4006 +extern void debug_gimple_stmt(gimple); +extern void debug_gimple_seq(gimple_seq); +extern void print_gimple_seq(FILE *, gimple_seq, int, int); +extern void print_gimple_stmt(FILE *, gimple, int, int); +extern void print_gimple_expr(FILE *, gimple, int, int); +extern void dump_gimple_stmt(pretty_printer *, gimple, int, int); +#endif + +#ifdef __cplusplus +static inline void debug_tree(const_tree t) +{ + debug_tree(CONST_CAST_TREE(t)); +} + +static inline void debug_gimple_stmt(const_gimple s) +{ + debug_gimple_stmt(CONST_CAST_GIMPLE(s)); +} +#else +#define debug_tree(t) debug_tree(CONST_CAST_TREE(t)) +#define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s)) +#endif + +#define __unused __attribute__((__unused__)) + +#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node)) +#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node)) +#define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node)) +#define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node)) + +// should come from c-tree.h if only it were installed for gcc 4.5... +#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE) + +#if BUILDING_GCC_VERSION == 4005 +#define FOR_EACH_LOCAL_DECL(FUN, I, D) for (tree vars = (FUN)->local_decls, (I) = 0; vars && ((D) = TREE_VALUE(vars)); vars = TREE_CHAIN(vars), (I)++) +#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE))) +#define FOR_EACH_VEC_ELT(T, V, I, P) for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I)) +#define TODO_rebuild_cgraph_edges 0 +#define SCOPE_FILE_SCOPE_P(EXP) (!(EXP)) + +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +typedef struct varpool_node *varpool_node_ptr; + +static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code) +{ + tree fndecl; + + if (!is_gimple_call(stmt)) + return false; + fndecl = gimple_call_fndecl(stmt); + if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL) + return false; + return DECL_FUNCTION_CODE(fndecl) == code; +} + +static inline bool is_simple_builtin(tree decl) +{ + if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL) + return false; + + switch (DECL_FUNCTION_CODE(decl)) { + /* Builtins that expand to constants. */ + case BUILT_IN_CONSTANT_P: + case BUILT_IN_EXPECT: + case BUILT_IN_OBJECT_SIZE: + case BUILT_IN_UNREACHABLE: + /* Simple register moves or loads from stack. */ + case BUILT_IN_RETURN_ADDRESS: + case BUILT_IN_EXTRACT_RETURN_ADDR: + case BUILT_IN_FROB_RETURN_ADDR: + case BUILT_IN_RETURN: + case BUILT_IN_AGGREGATE_INCOMING_ADDRESS: + case BUILT_IN_FRAME_ADDRESS: + case BUILT_IN_VA_END: + case BUILT_IN_STACK_SAVE: + case BUILT_IN_STACK_RESTORE: + /* Exception state returns or moves registers around. */ + case BUILT_IN_EH_FILTER: + case BUILT_IN_EH_POINTER: + case BUILT_IN_EH_COPY_VALUES: + return true; + + default: + return false; + } +} + +static inline void add_local_decl(struct function *fun, tree d) +{ + gcc_assert(TREE_CODE(d) == VAR_DECL); + fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls); +} +#endif + +#if BUILDING_GCC_VERSION <= 4006 +#define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN) +#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP) +#define EDGE_PRESERVE 0ULL +#define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x" +#define flag_fat_lto_objects true + +#define get_random_seed(noinit) ({ \ + unsigned HOST_WIDE_INT seed; \ + sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed); \ + seed * seed; }) + +#define int_const_binop(code, arg1, arg2) int_const_binop((code), (arg1), (arg2), 0) + +static inline bool gimple_clobber_p(gimple s __unused) +{ + return false; +} + +static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt) +{ + unsigned i; + + for (i = 0; i < gimple_asm_nclobbers(stmt); i++) { + tree op = gimple_asm_clobber_op(stmt, i); + if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory")) + return true; + } + + return false; +} + +static inline tree builtin_decl_implicit(enum built_in_function fncode) +{ + return implicit_built_in_decls[fncode]; +} + +static inline int ipa_reverse_postorder(struct cgraph_node **order) +{ + return cgraph_postorder(order); +} + +static inline struct cgraph_node *cgraph_get_create_node(tree decl) +{ + struct cgraph_node *node = cgraph_get_node(decl); + + return node ? node : cgraph_node(decl); +} + +static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node) +{ + return node->analyzed && !node->thunk.thunk_p && !node->alias; +} + +static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void) +{ + struct cgraph_node *node; + + for (node = cgraph_nodes; node; node = node->next) + if (cgraph_function_with_gimple_body_p(node)) + return node; + return NULL; +} + +static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node) +{ + for (node = node->next; node; node = node->next) + if (cgraph_function_with_gimple_body_p(node)) + return node; + return NULL; +} + +#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \ + for ((node) = cgraph_first_function_with_gimple_body(); (node); \ + (node) = cgraph_next_function_with_gimple_body(node)) + +static inline void varpool_add_new_variable(tree decl) +{ + varpool_finalize_decl(decl); +} +#endif + +#if BUILDING_GCC_VERSION <= 4007 +#define FOR_EACH_FUNCTION(node) for (node = cgraph_nodes; node; node = node->next) +#define FOR_EACH_VARIABLE(node) for (node = varpool_nodes; node; node = node->next) +#define PROP_loops 0 +#define NODE_SYMBOL(node) (node) +#define NODE_DECL(node) (node)->decl +#define INSN_LOCATION(INSN) RTL_LOCATION(INSN) + +static inline int bb_loop_depth(const_basic_block bb) +{ + return bb->loop_father ? loop_depth(bb->loop_father) : 0; +} + +static inline bool gimple_store_p(gimple gs) +{ + tree lhs = gimple_get_lhs(gs); + return lhs && !is_gimple_reg(lhs); +} +#endif + +#if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008 +static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n) +{ + return cgraph_alias_aliased_node(n); +} +#endif + +#if BUILDING_GCC_VERSION >= 4007 && BUILDING_GCC_VERSION <= 4009 +#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \ + cgraph_create_edge((caller), (callee), (call_stmt), (count), (freq)) +#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \ + cgraph_create_edge_including_clones((caller), (callee), (old_call_stmt), (call_stmt), (count), (freq), (reason)) +#endif + +#if BUILDING_GCC_VERSION <= 4008 +#define ENTRY_BLOCK_PTR_FOR_FN(FN) ENTRY_BLOCK_PTR_FOR_FUNCTION(FN) +#define EXIT_BLOCK_PTR_FOR_FN(FN) EXIT_BLOCK_PTR_FOR_FUNCTION(FN) +#define basic_block_info_for_fn(FN) ((FN)->cfg->x_basic_block_info) +#define n_basic_blocks_for_fn(FN) ((FN)->cfg->x_n_basic_blocks) +#define n_edges_for_fn(FN) ((FN)->cfg->x_n_edges) +#define last_basic_block_for_fn(FN) ((FN)->cfg->x_last_basic_block) +#define label_to_block_map_for_fn(FN) ((FN)->cfg->x_label_to_block_map) +#define profile_status_for_fn(FN) ((FN)->cfg->x_profile_status) +#define BASIC_BLOCK_FOR_FN(FN, N) BASIC_BLOCK_FOR_FUNCTION((FN), (N)) +#define NODE_IMPLICIT_ALIAS(node) (node)->same_body_alias +#define VAR_P(NODE) (TREE_CODE(NODE) == VAR_DECL) + +static inline bool tree_fits_shwi_p(const_tree t) +{ + if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST) + return false; + + if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0) + return true; + + if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t))) + return true; + + return false; +} + +static inline bool tree_fits_uhwi_p(const_tree t) +{ + if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST) + return false; + + return TREE_INT_CST_HIGH(t) == 0; +} + +static inline HOST_WIDE_INT tree_to_shwi(const_tree t) +{ + gcc_assert(tree_fits_shwi_p(t)); + return TREE_INT_CST_LOW(t); +} + +static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t) +{ + gcc_assert(tree_fits_uhwi_p(t)); + return TREE_INT_CST_LOW(t); +} + +static inline const char *get_tree_code_name(enum tree_code code) +{ + gcc_assert(code < MAX_TREE_CODES); + return tree_code_name[code]; +} + +#define ipa_remove_stmt_references(cnode, stmt) + +typedef union gimple_statement_d gasm; +typedef union gimple_statement_d gassign; +typedef union gimple_statement_d gcall; +typedef union gimple_statement_d gcond; +typedef union gimple_statement_d gdebug; +typedef union gimple_statement_d gphi; +typedef union gimple_statement_d greturn; + +static inline gasm *as_a_gasm(gimple stmt) +{ + return stmt; +} + +static inline const gasm *as_a_const_gasm(const_gimple stmt) +{ + return stmt; +} + +static inline gassign *as_a_gassign(gimple stmt) +{ + return stmt; +} + +static inline const gassign *as_a_const_gassign(const_gimple stmt) +{ + return stmt; +} + +static inline gcall *as_a_gcall(gimple stmt) +{ + return stmt; +} + +static inline const gcall *as_a_const_gcall(const_gimple stmt) +{ + return stmt; +} + +static inline gcond *as_a_gcond(gimple stmt) +{ + return stmt; +} + +static inline const gcond *as_a_const_gcond(const_gimple stmt) +{ + return stmt; +} + +static inline gdebug *as_a_gdebug(gimple stmt) +{ + return stmt; +} + +static inline const gdebug *as_a_const_gdebug(const_gimple stmt) +{ + return stmt; +} + +static inline gphi *as_a_gphi(gimple stmt) +{ + return stmt; +} + +static inline const gphi *as_a_const_gphi(const_gimple stmt) +{ + return stmt; +} + +static inline greturn *as_a_greturn(gimple stmt) +{ + return stmt; +} + +static inline const greturn *as_a_const_greturn(const_gimple stmt) +{ + return stmt; +} +#endif + +#if BUILDING_GCC_VERSION == 4008 +#define NODE_SYMBOL(node) (&(node)->symbol) +#define NODE_DECL(node) (node)->symbol.decl +#endif + +#if BUILDING_GCC_VERSION >= 4008 +#define add_referenced_var(var) +#define mark_sym_for_renaming(var) +#define varpool_mark_needed_node(node) +#define create_var_ann(var) +#define TODO_dump_func 0 +#define TODO_dump_cgraph 0 +#endif + +#if BUILDING_GCC_VERSION <= 4009 +#define TODO_verify_il 0 +#define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE + +#define section_name_prefix LTO_SECTION_NAME_PREFIX +#define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__) + +typedef struct rtx_def rtx_insn; + +static inline void set_decl_section_name(tree node, const char *value) +{ + DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value); +} +#endif + +#if BUILDING_GCC_VERSION == 4009 +typedef struct gimple_statement_asm gasm; +typedef struct gimple_statement_base gassign; +typedef struct gimple_statement_call gcall; +typedef struct gimple_statement_base gcond; +typedef struct gimple_statement_base gdebug; +typedef struct gimple_statement_phi gphi; +typedef struct gimple_statement_base greturn; + +static inline gasm *as_a_gasm(gimple stmt) +{ + return as_a<gasm>(stmt); +} + +static inline const gasm *as_a_const_gasm(const_gimple stmt) +{ + return as_a<const gasm>(stmt); +} + +static inline gassign *as_a_gassign(gimple stmt) +{ + return stmt; +} + +static inline const gassign *as_a_const_gassign(const_gimple stmt) +{ + return stmt; +} + +static inline gcall *as_a_gcall(gimple stmt) +{ + return as_a<gcall>(stmt); +} + +static inline const gcall *as_a_const_gcall(const_gimple stmt) +{ + return as_a<const gcall>(stmt); +} + +static inline gcond *as_a_gcond(gimple stmt) +{ + return stmt; +} + +static inline const gcond *as_a_const_gcond(const_gimple stmt) +{ + return stmt; +} + +static inline gdebug *as_a_gdebug(gimple stmt) +{ + return stmt; +} + +static inline const gdebug *as_a_const_gdebug(const_gimple stmt) +{ + return stmt; +} + +static inline gphi *as_a_gphi(gimple stmt) +{ + return as_a<gphi>(stmt); +} + +static inline const gphi *as_a_const_gphi(const_gimple stmt) +{ + return as_a<const gphi>(stmt); +} + +static inline greturn *as_a_greturn(gimple stmt) +{ + return stmt; +} + +static inline const greturn *as_a_const_greturn(const_gimple stmt) +{ + return stmt; +} +#endif + +#if BUILDING_GCC_VERSION >= 4009 +#define TODO_ggc_collect 0 +#define NODE_SYMBOL(node) (node) +#define NODE_DECL(node) (node)->decl +#define cgraph_node_name(node) (node)->name() +#define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias +#endif + +#if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000 +// gimple related +template <> +template <> +inline bool is_a_helper<const gassign *>::test(const_gimple gs) +{ + return gs->code == GIMPLE_ASSIGN; +} +#endif + +#if BUILDING_GCC_VERSION >= 5000 +#define TODO_verify_ssa TODO_verify_il +#define TODO_verify_flow TODO_verify_il +#define TODO_verify_stmts TODO_verify_il +#define TODO_verify_rtl_sharing TODO_verify_il + +#define INSN_DELETED_P(insn) (insn)->deleted() + +// symtab/cgraph related +#define debug_cgraph_node(node) (node)->debug() +#define cgraph_get_node(decl) cgraph_node::get(decl) +#define cgraph_get_create_node(decl) cgraph_node::get_create(decl) +#define cgraph_n_nodes symtab->cgraph_count +#define cgraph_max_uid symtab->cgraph_max_uid +#define varpool_get_node(decl) varpool_node::get(decl) + +#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \ + (caller)->create_edge((callee), (call_stmt), (count), (freq)) +#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \ + (caller)->create_edge_including_clones((callee), (old_call_stmt), (call_stmt), (count), (freq), (reason)) + +typedef struct cgraph_node *cgraph_node_ptr; +typedef struct cgraph_edge *cgraph_edge_p; +typedef struct varpool_node *varpool_node_ptr; + +static inline void change_decl_assembler_name(tree decl, tree name) +{ + symtab->change_decl_assembler_name(decl, name); +} + +static inline void varpool_finalize_decl(tree decl) +{ + varpool_node::finalize_decl(decl); +} + +static inline void varpool_add_new_variable(tree decl) +{ + varpool_node::add(decl); +} + +static inline unsigned int rebuild_cgraph_edges(void) +{ + return cgraph_edge::rebuild_edges(); +} + +static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability) +{ + return node->function_symbol(availability); +} + +static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL) +{ + return node->ultimate_alias_target(availability); +} + +static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node) +{ + return node->only_called_directly_p(); +} + +static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node) +{ + return node->get_availability(); +} + +static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node) +{ + return node->get_alias_target(); +} + +static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data) +{ + return symtab->add_cgraph_insertion_hook(hook, data); +} + +static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry) +{ + symtab->remove_cgraph_insertion_hook(entry); +} + +static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data) +{ + return symtab->add_cgraph_removal_hook(hook, data); +} + +static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry) +{ + symtab->remove_cgraph_removal_hook(entry); +} + +static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data) +{ + return symtab->add_cgraph_duplication_hook(hook, data); +} + +static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry) +{ + symtab->remove_cgraph_duplication_hook(entry); +} + +#if BUILDING_GCC_VERSION >= 6000 +typedef gimple *gimple_ptr; +typedef const gimple *const_gimple; +#define gimple gimple_ptr +#endif + +// gimple related +static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL) +{ + return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT); +} + +template <> +template <> +inline bool is_a_helper<const greturn *>::test(const_gimple gs) +{ + return gs->code == GIMPLE_RETURN; +} + +static inline gasm *as_a_gasm(gimple stmt) +{ + return as_a<gasm *>(stmt); +} + +static inline const gasm *as_a_const_gasm(const_gimple stmt) +{ + return as_a<const gasm *>(stmt); +} + +static inline gassign *as_a_gassign(gimple stmt) +{ + return as_a<gassign *>(stmt); +} + +static inline const gassign *as_a_const_gassign(const_gimple stmt) +{ + return as_a<const gassign *>(stmt); +} + +static inline gcall *as_a_gcall(gimple stmt) +{ + return as_a<gcall *>(stmt); +} + +static inline const gcall *as_a_const_gcall(const_gimple stmt) +{ + return as_a<const gcall *>(stmt); +} + +static inline gphi *as_a_gphi(gimple stmt) +{ + return as_a<gphi *>(stmt); +} + +static inline const gphi *as_a_const_gphi(const_gimple stmt) +{ + return as_a<const gphi *>(stmt); +} + +static inline greturn *as_a_greturn(gimple stmt) +{ + return as_a<greturn *>(stmt); +} + +static inline const greturn *as_a_const_greturn(const_gimple stmt) +{ + return as_a<const greturn *>(stmt); +} + +// IPA/LTO related +#define ipa_ref_list_referring_iterate(L,I,P) (L)->referring.iterate((I), &(P)) +#define ipa_ref_list_reference_iterate(L,I,P) (L)->reference.iterate((I), &(P)) + +static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref) +{ + return dyn_cast<cgraph_node_ptr>(ref->referring); +} + +static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt) +{ + referring_node->remove_stmt_references(stmt); +} +#endif + +#if BUILDING_GCC_VERSION < 6000 +#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning) get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning) +#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1)) +#endif + +#if BUILDING_GCC_VERSION >= 6000 +#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1)) +#endif + +#endif
This patch allows to build the whole kernel with GCC plugins. It was ported from grsecurity/PaX. The infrastructure supports building out-of-tree modules and building in a separate directory. Cross-compilation is supported too but currently only the x86 architecture enables plugins. The directory of the gcc plugins is tools/gcc. You can use a file or a directory there. The plugins compile with these options: * -fno-rtti: gcc is compiled with this option so the plugins must use it too * -fno-exceptions: this is inherited from gcc too * -fasynchronous-unwind-tables: this is inherited from gcc too * -ggdb: it is useful for debugging a plugin (better backtrace on internal errors) * -Wno-narrowing: to suppress warnings from gcc headers (ipa-utils.h) * -Wno-unused-variable: to suppress warnings from gcc headers (gcc_version variable, plugin-version.h) The infrastructure introduces a new Makefile target called gcc-plugins. It supports all gcc versions from 4.5 to 6.0. The scripts/gcc-plugin.sh script chooses the proper host compiler (gcc-4.7 can be built by either gcc or g++). This script also checks the availability of the included headers in tools/gcc/gcc-common.h. The gcc-common.h header contains frequently included headers for GCC plugins and it has a compatibility layer for the supported gcc versions. Note that 'make clean' keeps the *.so files (only the distclean or mrproper targets clean all) because they are needed for out-of-tree modules. --- Documentation/dontdiff | 1 + Makefile | 41 ++- arch/Kconfig | 10 + arch/x86/Kconfig | 1 + init/Makefile | 3 + scripts/Makefile.build | 2 +- scripts/Makefile.clean | 3 +- scripts/Makefile.gcc-plugins | 26 ++ scripts/Makefile.host | 69 +++- scripts/gcc-plugin.sh | 51 +++ scripts/link-vmlinux.sh | 2 +- scripts/package/builddeb | 1 + tools/gcc/Makefile | 15 + tools/gcc/gcc-common.h | 794 +++++++++++++++++++++++++++++++++++++++++++ 14 files changed, 1004 insertions(+), 15 deletions(-) create mode 100644 scripts/Makefile.gcc-plugins create mode 100644 scripts/gcc-plugin.sh create mode 100644 tools/gcc/Makefile create mode 100644 tools/gcc/gcc-common.h