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Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Browse source 
Pull kbuild updates from Michal Marek:

 - GCC plugin support by Emese Revfy from grsecurity, with a fixup from
   Kees Cook.  The plugins are meant to be used for static analysis of
   the kernel code.  Two plugins are provided already.

 - reduction of the gcc commandline by Arnd Bergmann.

 - IS_ENABLED / IS_REACHABLE macro enhancements by Masahiro Yamada

 - bin2c fix by Michael Tautschnig

 - setlocalversion fix by Wolfram Sang

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  gcc-plugins: disable under COMPILE_TEST
  kbuild: Abort build on bad stack protector flag
  scripts: Fix size mismatch of kexec_purgatory_size
  kbuild: make samples depend on headers_install
  Kbuild: don't add obj tree in additional includes
  Kbuild: arch: look for generated headers in obtree
  Kbuild: always prefix objtree in LINUXINCLUDE
  Kbuild: avoid duplicate include path
  Kbuild: don't add ../../ to include path
  vmlinux.lds.h: replace config_enabled() with IS_ENABLED()
  kconfig.h: allow to use IS_{ENABLE,REACHABLE} in macro expansion
  kconfig.h: use already defined macros for IS_REACHABLE() define
  export.h: use __is_defined() to check if __KSYM_* is defined
  kconfig.h: use __is_defined() to check if MODULE is defined
  kbuild: setlocalversion: print error to STDERR
  Add sancov plugin
  Add Cyclomatic complexity GCC plugin
  GCC plugin infrastructure
  Shared library support
This commit is contained in:
Linus Torvalds 2016-08-02 16:37:12 -04:00
commit f716a85cd6
43 changed files with 2252 additions and 54 deletions
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1
.gitignore vendored
View file

@ -37,6 +37,7 @@ modules.builtin
Module.symvers
*.dwo
*.su
*.c.[012]*.*
#
# Top-level generic files

1
Documentation/dontdiff
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@ -3,6 +3,7 @@
*.bc
*.bin
*.bz2
*.c.[012]*.*
*.cis
*.cpio
*.csp

87
Documentation/gcc-plugins.txt Normal file
View file

@ -0,0 +1,87 @@
GCC plugin infrastructure
=========================
1. Introduction
===============
GCC plugins are loadable modules that provide extra features to the
compiler [1]. They are useful for runtime instrumentation and static analysis.
We can analyse, change and add further code during compilation via
callbacks [2], GIMPLE [3], IPA [4] and RTL passes [5].
The GCC plugin infrastructure of the kernel supports all gcc versions from
4.5 to 6.0, building out-of-tree modules, cross-compilation and building in a
separate directory.
Plugin source files have to be compilable by both a C and a C++ compiler as well
because gcc versions 4.5 and 4.6 are compiled by a C compiler,
gcc-4.7 can be compiled by a C or a C++ compiler,
and versions 4.8+ can only be compiled by a C++ compiler.
Currently the GCC plugin infrastructure supports only the x86, arm and arm64
architectures.
This infrastructure was ported from grsecurity [6] and PaX [7].
--
[1] https://gcc.gnu.org/onlinedocs/gccint/Plugins.html
[2] https://gcc.gnu.org/onlinedocs/gccint/Plugin-API.html#Plugin-API
[3] https://gcc.gnu.org/onlinedocs/gccint/GIMPLE.html
[4] https://gcc.gnu.org/onlinedocs/gccint/IPA.html
[5] https://gcc.gnu.org/onlinedocs/gccint/RTL.html
[6] https://grsecurity.net/
[7] https://pax.grsecurity.net/
2. Files
========
$(src)/scripts/gcc-plugins
This is the directory of the GCC plugins.
$(src)/scripts/gcc-plugins/gcc-common.h
This is a compatibility header for GCC plugins.
It should be always included instead of individual gcc headers.
$(src)/scripts/gcc-plugin.sh
This script checks the availability of the included headers in
gcc-common.h and chooses the proper host compiler to build the plugins
(gcc-4.7 can be built by either gcc or g++).
$(src)/scripts/gcc-plugins/gcc-generate-gimple-pass.h
$(src)/scripts/gcc-plugins/gcc-generate-ipa-pass.h
$(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h
$(src)/scripts/gcc-plugins/gcc-generate-rtl-pass.h
These headers automatically generate the registration structures for
GIMPLE, SIMPLE_IPA, IPA and RTL passes. They support all gcc versions
from 4.5 to 6.0.
They should be preferred to creating the structures by hand.
3. Usage
========
You must install the gcc plugin headers for your gcc version,
e.g., on Ubuntu for gcc-4.9:
apt-get install gcc-4.9-plugin-dev
Enable a GCC plugin based feature in the kernel config:
CONFIG_GCC_PLUGIN_CYC_COMPLEXITY = y
To compile only the plugin(s):
make gcc-plugins
or just run the kernel make and compile the whole kernel with
the cyclomatic complexity GCC plugin.
4. How to add a new GCC plugin
==============================
The GCC plugins are in $(src)/scripts/gcc-plugins/. You can use a file or a directory
here. It must be added to $(src)/scripts/gcc-plugins/Makefile,
$(src)/scripts/Makefile.gcc-plugins and $(src)/arch/Kconfig.
See the cyc_complexity_plugin.c (CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) GCC plugin.

9
MAINTAINERS
View file

@ -5094,6 +5094,15 @@ L: linux-scsi@vger.kernel.org
S: Odd Fixes (e.g., new signatures)
F: drivers/scsi/fdomain.*
GCC PLUGINS
M: Kees Cook <keescook@chromium.org>
R: Emese Revfy <re.emese@gmail.com>
L: kernel-hardening@lists.openwall.com
S: Maintained
F: scripts/gcc-plugins/
F: scripts/gcc-plugin.sh
F: Documentation/gcc-plugins.txt
GCOV BASED KERNEL PROFILING
M: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
S: Maintained

45
Makefile
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@ -371,26 +371,27 @@ CFLAGS_KERNEL =
AFLAGS_KERNEL =
LDFLAGS_vmlinux =
CFLAGS_GCOV = -fprofile-arcs -ftest-coverage -fno-tree-loop-im
CFLAGS_KCOV = -fsanitize-coverage=trace-pc
CFLAGS_KCOV := $(call cc-option,-fsanitize-coverage=trace-pc,)
# Use USERINCLUDE when you must reference the UAPI directories only.
USERINCLUDE := \
-I$(srctree)/arch/$(hdr-arch)/include/uapi \
-Iarch/$(hdr-arch)/include/generated/uapi \
-I$(objtree)/arch/$(hdr-arch)/include/generated/uapi \
-I$(srctree)/include/uapi \
-Iinclude/generated/uapi \
-I$(objtree)/include/generated/uapi \
-include $(srctree)/include/linux/kconfig.h
# Use LINUXINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
LINUXINCLUDE := \
-I$(srctree)/arch/$(hdr-arch)/include \
-Iarch/$(hdr-arch)/include/generated/uapi \
-Iarch/$(hdr-arch)/include/generated \
-I$(objtree)/arch/$(hdr-arch)/include/generated/uapi \
-I$(objtree)/arch/$(hdr-arch)/include/generated \
$(if $(KBUILD_SRC), -I$(srctree)/include) \
-Iinclude \
$(USERINCLUDE)
-I$(objtree)/include
LINUXINCLUDE += $(filter-out $(LINUXINCLUDE),$(USERINCLUDE))
KBUILD_CPPFLAGS := -D__KERNEL__
@ -554,7 +555,7 @@ ifeq ($(KBUILD_EXTMOD),)
# in parallel
PHONY += scripts
scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \
asm-generic
asm-generic gcc-plugins
$(Q)$(MAKE) $(build)=$(@)
# Objects we will link into vmlinux / subdirs we need to visit
@ -635,6 +636,15 @@ endif
# Tell gcc to never replace conditional load with a non-conditional one
KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
PHONY += gcc-plugins
gcc-plugins: scripts_basic
ifdef CONFIG_GCC_PLUGINS
$(Q)$(MAKE) $(build)=scripts/gcc-plugins
endif
@:
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
@ -666,21 +676,11 @@ endif
endif
# Find arch-specific stack protector compiler sanity-checking script.
ifdef CONFIG_CC_STACKPROTECTOR
stackp-path := $(srctree)/scripts/gcc-$(ARCH)_$(BITS)-has-stack-protector.sh
ifneq ($(wildcard $(stackp-path)),)
stackp-check := $(stackp-path)
endif
stackp-path := $(srctree)/scripts/gcc-$(SRCARCH)_$(BITS)-has-stack-protector.sh
stackp-check := $(wildcard $(stackp-path))
endif
KBUILD_CFLAGS += $(stackp-flag)
ifdef CONFIG_KCOV
ifeq ($(call cc-option, $(CFLAGS_KCOV)),)
$(warning Cannot use CONFIG_KCOV: \
-fsanitize-coverage=trace-pc is not supported by compiler)
CFLAGS_KCOV =
endif
endif
ifeq ($(cc-name),clang)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
@ -1019,7 +1019,7 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
archprepare: archheaders archscripts prepare1 scripts_basic
prepare0: archprepare
prepare0: archprepare gcc-plugins
$(Q)$(MAKE) $(build)=.
# All the preparing..
@ -1531,6 +1531,7 @@ clean: $(clean-dirs)
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' -o -name 'modules.order' \
-o -name modules.builtin -o -name '.tmp_*.o.*' \
-o -name '*.c.[012]*.*' \
-o -name '*.gcno' \) -type f -print | xargs rm -f
# Generate tags for editors
@ -1641,7 +1642,7 @@ endif
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
# Make sure the latest headers are built for Documentation
Documentation/: headers_install
Documentation/ samples/: headers_install
%/: prepare scripts FORCE
$(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \

37
arch/Kconfig
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@ -357,6 +357,43 @@ config SECCOMP_FILTER
See Documentation/prctl/seccomp_filter.txt for details.
config HAVE_GCC_PLUGINS
bool
help
An arch should select this symbol if it supports building with
GCC plugins.
menuconfig GCC_PLUGINS
bool "GCC plugins"
depends on HAVE_GCC_PLUGINS
depends on !COMPILE_TEST
help
GCC plugins are loadable modules that provide extra features to the
compiler. They are useful for runtime instrumentation and static analysis.
See Documentation/gcc-plugins.txt for details.
config GCC_PLUGIN_CYC_COMPLEXITY
bool "Compute the cyclomatic complexity of a function"
depends on GCC_PLUGINS
help
The complexity M of a function's control flow graph is defined as:
M = E - N + 2P
where
E = the number of edges
N = the number of nodes
P = the number of connected components (exit nodes).
config GCC_PLUGIN_SANCOV
bool
depends on GCC_PLUGINS
help
This plugin inserts a __sanitizer_cov_trace_pc() call at the start of
basic blocks. It supports all gcc versions with plugin support (from
gcc-4.5 on). It is based on the commit "Add fuzzing coverage support"
by Dmitry Vyukov <dvyukov@google.com>.
config HAVE_CC_STACKPROTECTOR
bool
help

2
arch/alpha/boot/Makefile
View file

@ -15,7 +15,7 @@ targets := vmlinux.gz vmlinux \
OBJSTRIP := $(obj)/tools/objstrip
HOSTCFLAGS := -Wall -I$(objtree)/usr/include
BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj)
# SRM bootable image. Copy to offset 512 of a partition.
$(obj)/bootimage: $(addprefix $(obj)/tools/,mkbb lxboot bootlx) $(obj)/vmlinux.nh

1
arch/arm/Kconfig
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@ -54,6 +54,7 @@ config ARM
select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
select HAVE_IDE if PCI || ISA || PCMCIA

1
arch/arm64/Kconfig
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@ -78,6 +78,7 @@ config ARM64
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING

2
arch/powerpc/boot/Makefile
View file

@ -43,7 +43,7 @@ ifeq ($(call cc-option-yn, -fstack-protector),y)
BOOTCFLAGS += -fno-stack-protector
endif
BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj)
DTC_FLAGS ?= -p 1024

2
arch/powerpc/kvm/Makefile
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@ -20,7 +20,7 @@ common-objs-y += powerpc.o emulate.o emulate_loadstore.o
obj-$(CONFIG_KVM_EXIT_TIMING) += timing.o
obj-$(CONFIG_KVM_BOOK3S_HANDLER) += book3s_exports.o
AFLAGS_booke_interrupts.o := -I$(obj)
AFLAGS_booke_interrupts.o := -I$(objtree)/$(obj)
kvm-e500-objs := \
$(common-objs-y) \

4
arch/s390/boot/compressed/Makefile
View file

@ -33,10 +33,10 @@ quiet_cmd_sizes = GEN $@
$(obj)/sizes.h: vmlinux
$(call if_changed,sizes)
AFLAGS_head.o += -I$(obj)
AFLAGS_head.o += -I$(objtree)/$(obj)
$(obj)/head.o: $(obj)/sizes.h
CFLAGS_misc.o += -I$(obj)
CFLAGS_misc.o += -I$(objtree)/$(obj)
$(obj)/misc.o: $(obj)/sizes.h
OBJCOPYFLAGS_vmlinux.bin := -R .comment -S

1
arch/um/Kconfig.common
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@ -9,6 +9,7 @@ config UML
select GENERIC_CPU_DEVICES
select GENERIC_IO
select GENERIC_CLOCKEVENTS
select HAVE_GCC_PLUGINS
select TTY # Needed for line.c
config MMU

4
arch/um/Makefile
View file

@ -78,8 +78,8 @@ include $(ARCH_DIR)/Makefile-os-$(OS)
KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/include \
-I$(srctree)/$(HOST_DIR)/include/uapi \
-I$(HOST_DIR)/include/generated \
-I$(HOST_DIR)/include/generated/uapi
-I$(objtree)/$(HOST_DIR)/include/generated \
-I$(objtree)/$(HOST_DIR)/include/generated/uapi
# -Derrno=kernel_errno - This turns all kernel references to errno into
# kernel_errno to separate them from the libc errno. This allows -fno-common

1
arch/x86/Kconfig
View file

@ -111,6 +111,7 @@ config X86
select HAVE_FUNCTION_GRAPH_FP_TEST
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT if X86_32
select HAVE_HW_BREAKPOINT
select HAVE_IDE

2
arch/x86/boot/Makefile
View file

@ -96,7 +96,7 @@ $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
$(call if_changed,zoffset)
AFLAGS_header.o += -I$(obj)
AFLAGS_header.o += -I$(objtree)/$(obj)
$(obj)/header.o: $(obj)/zoffset.h
LDFLAGS_setup.elf := -T

3
arch/x86/entry/vdso/Makefile
View file

@ -75,7 +75,7 @@ CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
-fno-omit-frame-pointer -foptimize-sibling-calls \
-DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
$(vobjs): KBUILD_CFLAGS += $(CFL)
$(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
#
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
@ -145,6 +145,7 @@ KBUILD_CFLAGS_32 := $(filter-out -m64,$(KBUILD_CFLAGS))
KBUILD_CFLAGS_32 := $(filter-out -mcmodel=kernel,$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 := $(filter-out -fno-pic,$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 := $(filter-out -mfentry,$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic
KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector)
KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)

2
arch/x86/purgatory/Makefile
View file

@ -8,6 +8,8 @@ PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
targets += purgatory.ro
KCOV_INSTRUMENT := n
# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
# in turn leaves some undefined symbols like __fentry__ in purgatory and not
# sure how to relocate those. Like kexec-tools, use custom flags.

2
arch/x86/realmode/rm/Makefile
View file

@ -48,7 +48,7 @@ targets += realmode.lds
$(obj)/realmode.lds: $(obj)/pasyms.h
LDFLAGS_realmode.elf := --emit-relocs -T
CPPFLAGS_realmode.lds += -P -C -I$(obj)
CPPFLAGS_realmode.lds += -P -C -I$(objtree)/$(obj)
targets += realmode.elf
$(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE

2
include/asm-generic/vmlinux.lds.h
View file

@ -164,7 +164,7 @@
#define ___OF_TABLE(cfg, name) _OF_TABLE_##cfg(name)
#define __OF_TABLE(cfg, name) ___OF_TABLE(cfg, name)
#define OF_TABLE(cfg, name) __OF_TABLE(config_enabled(cfg), name)
#define OF_TABLE(cfg, name) __OF_TABLE(IS_ENABLED(cfg), name)
#define _OF_TABLE_0(name)
#define _OF_TABLE_1(name) \
. = ALIGN(8); \

2
include/linux/export.h
View file

@ -82,7 +82,7 @@ extern struct module __this_module;
#include <generated/autoksyms.h>
#define __EXPORT_SYMBOL(sym, sec) \
__cond_export_sym(sym, sec, config_enabled(__KSYM_##sym))
__cond_export_sym(sym, sec, __is_defined(__KSYM_##sym))
#define __cond_export_sym(sym, sec, conf) \
___cond_export_sym(sym, sec, conf)
#define ___cond_export_sym(sym, sec, enabled) \

31
include/linux/kconfig.h
View file

@ -3,6 +3,21 @@
#include <generated/autoconf.h>
#define __ARG_PLACEHOLDER_1 0,
#define __take_second_arg(__ignored, val, ...) val
/*
* The use of "&&" / "||" is limited in certain expressions.
* The followings enable to calculate "and" / "or" with macro expansion only.
*/
#define __and(x, y) ___and(x, y)
#define ___and(x, y) ____and(__ARG_PLACEHOLDER_##x, y)
#define ____and(arg1_or_junk, y) __take_second_arg(arg1_or_junk y, 0)
#define __or(x, y) ___or(x, y)
#define ___or(x, y) ____or(__ARG_PLACEHOLDER_##x, y)
#define ____or(arg1_or_junk, y) __take_second_arg(arg1_or_junk 1, y)
/*
* Helper macros to use CONFIG_ options in C/CPP expressions. Note that
* these only work with boolean and tristate options.
@ -16,11 +31,10 @@
* When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when
* the last step cherry picks the 2nd arg, we get a zero.
*/
#define __ARG_PLACEHOLDER_1 0,
#define config_enabled(cfg) _config_enabled(cfg)
#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)
#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)
#define ___config_enabled(__ignored, val, ...) val
#define config_enabled(cfg) ___is_defined(cfg)
#define __is_defined(x) ___is_defined(x)
#define ___is_defined(val) ____is_defined(__ARG_PLACEHOLDER_##val)
#define ____is_defined(arg1_or_junk) __take_second_arg(arg1_or_junk 1, 0)
/*
* IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0
@ -41,14 +55,13 @@
* This is similar to IS_ENABLED(), but returns false when invoked from
* built-in code when CONFIG_FOO is set to 'm'.
*/
#define IS_REACHABLE(option) (config_enabled(option) || \
(config_enabled(option##_MODULE) && config_enabled(MODULE)))
#define IS_REACHABLE(option) __or(IS_BUILTIN(option), \
__and(IS_MODULE(option), __is_defined(MODULE)))
/*
* IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',
* 0 otherwise.
*/
#define IS_ENABLED(option) \
(IS_BUILTIN(option) || IS_MODULE(option))
#define IS_ENABLED(option) __or(IS_BUILTIN(option), IS_MODULE(option))
#endif /* __LINUX_KCONFIG_H */

2
lib/Kconfig.debug
View file

@ -709,6 +709,8 @@ config KCOV
bool "Code coverage for fuzzing"
depends on ARCH_HAS_KCOV
select DEBUG_FS
select GCC_PLUGINS if !COMPILE_TEST
select GCC_PLUGIN_SANCOV if !COMPILE_TEST
help
KCOV exposes kernel code coverage information in a form suitable
for coverage-guided fuzzing (randomized testing).

2
scripts/Kbuild.include
View file

@ -202,7 +202,7 @@ hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
# Prefix -I with $(srctree) if it is not an absolute path.
# skip if -I has no parameter
addtree = $(if $(patsubst -I%,%,$(1)), \
$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
$(if $(filter-out -I/% -I./% -I../%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)))
# Find all -I options and call addtree
flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))

2
scripts/Makefile
View file

@ -47,4 +47,4 @@ subdir-$(CONFIG_DTC) += dtc
subdir-$(CONFIG_GDB_SCRIPTS) += gdb
# Let clean descend into subdirs
subdir- += basic kconfig package
subdir- += basic kconfig package gcc-plugins

2
scripts/Makefile.build
View file

@ -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

4
scripts/Makefile.clean
View file

@ -38,7 +38,9 @@ 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-) \
$(hostcxxlibs-y) $(hostcxxlibs-m)
__clean-files := $(filter-out $(no-clean-files), $(__clean-files))

43
scripts/Makefile.gcc-plugins Normal file
View file

@ -0,0 +1,43 @@
ifdef CONFIG_GCC_PLUGINS
__PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC))
PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)")
SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so
gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so
ifdef CONFIG_GCC_PLUGIN_SANCOV
ifeq ($(CFLAGS_KCOV),)
# It is needed because of the gcc-plugin.sh and gcc version checks.
gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so
ifneq ($(PLUGINCC),)
CFLAGS_KCOV := $(SANCOV_PLUGIN)
else
$(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler)
endif
endif
endif
GCC_PLUGINS_CFLAGS := $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y))
export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN SANCOV_PLUGIN
ifeq ($(PLUGINCC),)
ifneq ($(GCC_PLUGINS_CFLAGS),)
ifeq ($(call cc-ifversion, -ge, 0405, y), y)
PLUGINCC := $(shell $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)")
$(warning warning: your gcc installation does not support plugins, perhaps the necessary headers are missing?)
else
$(warning warning: your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least)
endif
endif
else
# SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication.
GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS))
endif
KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
GCC_PLUGIN := $(gcc-plugin-y)
endif

55
scripts/Makefile.host
View file

@ -20,7 +20,15 @@
# Will compile qconf as a C++ program, and menu as a C program.
# They are linked as C++ code to the executable qconf
# 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))
host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
# C code
# Executables compiled from a single .c file
@ -42,6 +50,10 @@ 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)))
# 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 +68,10 @@ 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 +140,42 @@ 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
# Note that plugin capable gcc versions can be either C or C++ based
# therefore plugin source files have to be compilable in both C and C++ mode.
# This is why a C++ compiler is invoked on a .c 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): FORCE
$(call if_changed,host-cshlib)
$(call multi_depend, $(host-cshlib), .so, -objs)
# 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): FORCE
$(call if_changed,host-cxxshlib)
$(call multi_depend, $(host-cxxshlib), .so, -objs)
targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
$(host-cxxmulti) $(host-cxxobjs)
$(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)

7
scripts/Makefile.lib
View file

@ -155,9 +155,10 @@ else
# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
# and locates generated .h files
# FIXME: Replace both with specific CFLAGS* statements in the makefiles
__c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
__a_flags = $(call flags,_a_flags)
__cpp_flags = $(call flags,_cpp_flags)
__c_flags = $(if $(obj),-I$(srctree)/$(src) -I$(obj)) \
$(call flags,_c_flags)
__a_flags = $(call flags,_a_flags)
__cpp_flags = $(call flags,_cpp_flags)
endif
c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \

3
scripts/basic/bin2c.c
View file

@ -29,7 +29,8 @@ int main(int argc, char *argv[])
} while (ch != EOF);
if (argc > 1)
printf("\t;\n\nconst int %s_size = %d;\n", argv[1], total);
printf("\t;\n\n#include <linux/types.h>\n\nconst size_t %s_size = %d;\n",
argv[1], total);
return 0;
}

51
scripts/gcc-plugin.sh Executable file
View file

@ -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}"/gcc-plugins -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}"/gcc-plugins -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

27
scripts/gcc-plugins/Makefile Normal file
View file

@ -0,0 +1,27 @@
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$(src) -std=gnu++98 -fno-rtti
HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
export HOST_EXTRACXXFLAGS
endif
export GCCPLUGINS_DIR HOSTLIBS
ifneq ($(CFLAGS_KCOV), $(SANCOV_PLUGIN))
GCC_PLUGIN := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGIN))
endif
$(HOSTLIBS)-y := $(GCC_PLUGIN)
always := $($(HOSTLIBS)-y)
cyc_complexity_plugin-objs := cyc_complexity_plugin.o
sancov_plugin-objs := sancov_plugin.o
clean-files += *.so

73
scripts/gcc-plugins/cyc_complexity_plugin.c Normal file
View file

@ -0,0 +1,73 @@
/*
* Copyright 2011-2016 by Emese Revfy <re.emese@gmail.com>
* Licensed under the GPL v2, or (at your option) v3
*
* Homepage:
* https://github.com/ephox-gcc-plugins/cyclomatic_complexity
*
* http://en.wikipedia.org/wiki/Cyclomatic_complexity
* The complexity M is then defined as:
* M = E - N + 2P
* where
*
* E = the number of edges of the graph
* N = the number of nodes of the graph
* P = the number of connected components (exit nodes).
*
* Usage (4.5 - 5):
* $ make clean; make run
*/
#include "gcc-common.h"
int plugin_is_GPL_compatible;
static struct plugin_info cyc_complexity_plugin_info = {
.version = "20160225",
.help = "Cyclomatic Complexity\n",
};
static unsigned int cyc_complexity_execute(void)
{
int complexity;
expanded_location xloc;
/* M = E - N + 2P */
complexity = n_edges_for_fn(cfun) - n_basic_blocks_for_fn(cfun) + 2;
xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
fprintf(stderr, "Cyclomatic Complexity %d %s:%s\n", complexity,
xloc.file, DECL_NAME_POINTER(current_function_decl));
return 0;
}
#define PASS_NAME cyc_complexity
#define NO_GATE
#define TODO_FLAGS_FINISH TODO_dump_func
#include "gcc-generate-gimple-pass.h"
int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
{
const char * const plugin_name = plugin_info->base_name;
struct register_pass_info cyc_complexity_pass_info;
cyc_complexity_pass_info.pass = make_cyc_complexity_pass();
cyc_complexity_pass_info.reference_pass_name = "ssa";
cyc_complexity_pass_info.ref_pass_instance_number = 1;
cyc_complexity_pass_info.pos_op = PASS_POS_INSERT_AFTER;
if (!plugin_default_version_check(version, &gcc_version)) {
error(G_("incompatible gcc/plugin versions"));
return 1;
}
register_callback(plugin_name, PLUGIN_INFO, NULL,
&cyc_complexity_plugin_info);
register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL,
&cyc_complexity_pass_info);
return 0;
}

830
scripts/gcc-plugins/gcc-common.h Normal file
View file

@ -0,0 +1,830 @@
#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 >= 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
#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_create_node(tree decl)
{
return cgraph_node(decl);
}
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)
#define vNULL NULL
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);
}
static inline void gimple_init_singleton(gimple g __unused)
{
}
#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)
{
if (value)
DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
else
DECL_SECTION_NAME(node) = NULL;
}
#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_create_node(decl) cgraph_node::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);
}
static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
{
symtab->call_cgraph_duplication_hooks(node, node2);
}
static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
{
symtab->call_edge_duplication_hooks(cs1, cs2);
}
#if BUILDING_GCC_VERSION >= 6000
typedef gimple *gimple_ptr;
typedef const gimple *const_gimple_ptr;
#define gimple gimple_ptr
#define const_gimple const_gimple_ptr
#undef CONST_CAST_GIMPLE
#define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
#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
#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
#endif

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/*
* Generator for GIMPLE pass related boilerplate code/data
*
* Supports gcc 4.5-6
*
* Usage:
*
* 1. before inclusion define PASS_NAME
* 2. before inclusion define NO_* for unimplemented callbacks
* NO_GATE
* NO_EXECUTE
* 3. before inclusion define PROPERTIES_* and TODO_FLAGS_* to override
* the default 0 values
* 4. for convenience, all the above will be undefined after inclusion!
* 5. the only exported name is make_PASS_NAME_pass() to register with gcc
*/
#ifndef PASS_NAME
#error at least PASS_NAME must be defined
#else
#define __GCC_PLUGIN_STRINGIFY(n) #n
#define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
#define _GCC_PLUGIN_CONCAT2(x, y) x ## y
#define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
#define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
#define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
#define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
#define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
#define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
#define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
#define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
#ifdef NO_GATE
#define _GATE NULL
#define _HAS_GATE false
#else
#define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
#define _GATE __GATE(PASS_NAME)
#define _HAS_GATE true
#endif
#ifdef NO_EXECUTE
#define _EXECUTE NULL
#define _HAS_EXECUTE false
#else
#define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
#define _EXECUTE __EXECUTE(PASS_NAME)
#define _HAS_EXECUTE true
#endif
#ifndef PROPERTIES_REQUIRED
#define PROPERTIES_REQUIRED 0
#endif
#ifndef PROPERTIES_PROVIDED
#define PROPERTIES_PROVIDED 0
#endif
#ifndef PROPERTIES_DESTROYED
#define PROPERTIES_DESTROYED 0
#endif
#ifndef TODO_FLAGS_START
#define TODO_FLAGS_START 0
#endif
#ifndef TODO_FLAGS_FINISH
#define TODO_FLAGS_FINISH 0
#endif
#if BUILDING_GCC_VERSION >= 4009
namespace {
static const pass_data _PASS_NAME_PASS_DATA = {
#else
static struct gimple_opt_pass _PASS_NAME_PASS = {
.pass = {
#endif
.type = GIMPLE_PASS,
.name = _PASS_NAME_NAME,
#if BUILDING_GCC_VERSION >= 4008
.optinfo_flags = OPTGROUP_NONE,
#endif
#if BUILDING_GCC_VERSION >= 5000
#elif BUILDING_GCC_VERSION == 4009
.has_gate = _HAS_GATE,
.has_execute = _HAS_EXECUTE,
#else
.gate = _GATE,
.execute = _EXECUTE,
.sub = NULL,
.next = NULL,
.static_pass_number = 0,
#endif
.tv_id = TV_NONE,
.properties_required = PROPERTIES_REQUIRED,
.properties_provided = PROPERTIES_PROVIDED,
.properties_destroyed = PROPERTIES_DESTROYED,
.todo_flags_start = TODO_FLAGS_START,
.todo_flags_finish = TODO_FLAGS_FINISH,
#if BUILDING_GCC_VERSION < 4009
}
#endif
};
#if BUILDING_GCC_VERSION >= 4009
class _PASS_NAME_PASS : public gimple_opt_pass {
public:
_PASS_NAME_PASS() : gimple_opt_pass(_PASS_NAME_PASS_DATA, g) {}
#ifndef NO_GATE
#if BUILDING_GCC_VERSION >= 5000
virtual bool gate(function *) { return _GATE(); }
#else
virtual bool gate(void) { return _GATE(); }
#endif
#endif
virtual opt_pass * clone () { return new _PASS_NAME_PASS(); }
#ifndef NO_EXECUTE
#if BUILDING_GCC_VERSION >= 5000
virtual unsigned int execute(function *) { return _EXECUTE(); }
#else
virtual unsigned int execute(void) { return _EXECUTE(); }
#endif
#endif
};
}
opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return new _PASS_NAME_PASS();
}
#else
struct opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return &_PASS_NAME_PASS.pass;
}
#endif
/* clean up user provided defines */
#undef PASS_NAME
#undef NO_GATE
#undef NO_EXECUTE
#undef PROPERTIES_DESTROYED
#undef PROPERTIES_PROVIDED
#undef PROPERTIES_REQUIRED
#undef TODO_FLAGS_FINISH
#undef TODO_FLAGS_START
/* clean up generated defines */
#undef _EXECUTE
#undef __EXECUTE
#undef _GATE
#undef __GATE
#undef _GCC_PLUGIN_CONCAT2
#undef _GCC_PLUGIN_CONCAT3
#undef _GCC_PLUGIN_STRINGIFY
#undef __GCC_PLUGIN_STRINGIFY
#undef _HAS_EXECUTE
#undef _HAS_GATE
#undef _MAKE_PASS_NAME_PASS
#undef __MAKE_PASS_NAME_PASS
#undef _PASS_NAME_NAME
#undef _PASS_NAME_PASS
#undef __PASS_NAME_PASS
#undef _PASS_NAME_PASS_DATA
#undef __PASS_NAME_PASS_DATA
#endif /* PASS_NAME */

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/*
* Generator for IPA pass related boilerplate code/data
*
* Supports gcc 4.5-6
*
* Usage:
*
* 1. before inclusion define PASS_NAME
* 2. before inclusion define NO_* for unimplemented callbacks
* NO_GENERATE_SUMMARY
* NO_READ_SUMMARY
* NO_WRITE_SUMMARY
* NO_READ_OPTIMIZATION_SUMMARY
* NO_WRITE_OPTIMIZATION_SUMMARY
* NO_STMT_FIXUP
* NO_FUNCTION_TRANSFORM
* NO_VARIABLE_TRANSFORM
* NO_GATE
* NO_EXECUTE
* 3. before inclusion define PROPERTIES_* and *TODO_FLAGS_* to override
* the default 0 values
* 4. for convenience, all the above will be undefined after inclusion!
* 5. the only exported name is make_PASS_NAME_pass() to register with gcc
*/
#ifndef PASS_NAME
#error at least PASS_NAME must be defined
#else
#define __GCC_PLUGIN_STRINGIFY(n) #n
#define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
#define _GCC_PLUGIN_CONCAT2(x, y) x ## y
#define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
#define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
#define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
#define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
#define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
#define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
#define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
#define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
#ifdef NO_GENERATE_SUMMARY
#define _GENERATE_SUMMARY NULL
#else
#define __GENERATE_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _generate_summary)
#define _GENERATE_SUMMARY __GENERATE_SUMMARY(PASS_NAME)
#endif
#ifdef NO_READ_SUMMARY
#define _READ_SUMMARY NULL
#else
#define __READ_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _read_summary)
#define _READ_SUMMARY __READ_SUMMARY(PASS_NAME)
#endif
#ifdef NO_WRITE_SUMMARY
#define _WRITE_SUMMARY NULL
#else
#define __WRITE_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _write_summary)
#define _WRITE_SUMMARY __WRITE_SUMMARY(PASS_NAME)
#endif
#ifdef NO_READ_OPTIMIZATION_SUMMARY
#define _READ_OPTIMIZATION_SUMMARY NULL
#else
#define __READ_OPTIMIZATION_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _read_optimization_summary)
#define _READ_OPTIMIZATION_SUMMARY __READ_OPTIMIZATION_SUMMARY(PASS_NAME)
#endif
#ifdef NO_WRITE_OPTIMIZATION_SUMMARY
#define _WRITE_OPTIMIZATION_SUMMARY NULL
#else
#define __WRITE_OPTIMIZATION_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _write_optimization_summary)
#define _WRITE_OPTIMIZATION_SUMMARY __WRITE_OPTIMIZATION_SUMMARY(PASS_NAME)
#endif
#ifdef NO_STMT_FIXUP
#define _STMT_FIXUP NULL
#else
#define __STMT_FIXUP(n) _GCC_PLUGIN_CONCAT2(n, _stmt_fixup)
#define _STMT_FIXUP __STMT_FIXUP(PASS_NAME)
#endif
#ifdef NO_FUNCTION_TRANSFORM
#define _FUNCTION_TRANSFORM NULL
#else
#define __FUNCTION_TRANSFORM(n) _GCC_PLUGIN_CONCAT2(n, _function_transform)
#define _FUNCTION_TRANSFORM __FUNCTION_TRANSFORM(PASS_NAME)
#endif
#ifdef NO_VARIABLE_TRANSFORM
#define _VARIABLE_TRANSFORM NULL
#else
#define __VARIABLE_TRANSFORM(n) _GCC_PLUGIN_CONCAT2(n, _variable_transform)
#define _VARIABLE_TRANSFORM __VARIABLE_TRANSFORM(PASS_NAME)
#endif
#ifdef NO_GATE
#define _GATE NULL
#define _HAS_GATE false
#else
#define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
#define _GATE __GATE(PASS_NAME)
#define _HAS_GATE true
#endif
#ifdef NO_EXECUTE
#define _EXECUTE NULL
#define _HAS_EXECUTE false
#else
#define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
#define _EXECUTE __EXECUTE(PASS_NAME)
#define _HAS_EXECUTE true
#endif
#ifndef PROPERTIES_REQUIRED
#define PROPERTIES_REQUIRED 0
#endif
#ifndef PROPERTIES_PROVIDED
#define PROPERTIES_PROVIDED 0
#endif
#ifndef PROPERTIES_DESTROYED
#define PROPERTIES_DESTROYED 0
#endif
#ifndef TODO_FLAGS_START
#define TODO_FLAGS_START 0
#endif
#ifndef TODO_FLAGS_FINISH
#define TODO_FLAGS_FINISH 0
#endif
#ifndef FUNCTION_TRANSFORM_TODO_FLAGS_START
#define FUNCTION_TRANSFORM_TODO_FLAGS_START 0
#endif
#if BUILDING_GCC_VERSION >= 4009
namespace {
static const pass_data _PASS_NAME_PASS_DATA = {
#else
static struct ipa_opt_pass_d _PASS_NAME_PASS = {
.pass = {
#endif
.type = IPA_PASS,
.name = _PASS_NAME_NAME,
#if BUILDING_GCC_VERSION >= 4008
.optinfo_flags = OPTGROUP_NONE,
#endif
#if BUILDING_GCC_VERSION >= 5000
#elif BUILDING_GCC_VERSION == 4009
.has_gate = _HAS_GATE,
.has_execute = _HAS_EXECUTE,
#else
.gate = _GATE,
.execute = _EXECUTE,
.sub = NULL,
.next = NULL,
.static_pass_number = 0,
#endif
.tv_id = TV_NONE,
.properties_required = PROPERTIES_REQUIRED,
.properties_provided = PROPERTIES_PROVIDED,
.properties_destroyed = PROPERTIES_DESTROYED,
.todo_flags_start = TODO_FLAGS_START,
.todo_flags_finish = TODO_FLAGS_FINISH,
#if BUILDING_GCC_VERSION < 4009
},
.generate_summary = _GENERATE_SUMMARY,
.write_summary = _WRITE_SUMMARY,
.read_summary = _READ_SUMMARY,
#if BUILDING_GCC_VERSION >= 4006
.write_optimization_summary = _WRITE_OPTIMIZATION_SUMMARY,
.read_optimization_summary = _READ_OPTIMIZATION_SUMMARY,
#endif
.stmt_fixup = _STMT_FIXUP,
.function_transform_todo_flags_start = FUNCTION_TRANSFORM_TODO_FLAGS_START,
.function_transform = _FUNCTION_TRANSFORM,
.variable_transform = _VARIABLE_TRANSFORM,
#endif
};
#if BUILDING_GCC_VERSION >= 4009
class _PASS_NAME_PASS : public ipa_opt_pass_d {
public:
_PASS_NAME_PASS() : ipa_opt_pass_d(_PASS_NAME_PASS_DATA,
g,
_GENERATE_SUMMARY,
_WRITE_SUMMARY,
_READ_SUMMARY,
_WRITE_OPTIMIZATION_SUMMARY,
_READ_OPTIMIZATION_SUMMARY,
_STMT_FIXUP,
FUNCTION_TRANSFORM_TODO_FLAGS_START,
_FUNCTION_TRANSFORM,
_VARIABLE_TRANSFORM) {}
#ifndef NO_GATE
#if BUILDING_GCC_VERSION >= 5000
virtual bool gate(function *) { return _GATE(); }
#else
virtual bool gate(void) { return _GATE(); }
#endif
#endif
virtual opt_pass *clone() { return new _PASS_NAME_PASS(); }
#ifndef NO_EXECUTE
#if BUILDING_GCC_VERSION >= 5000
virtual unsigned int execute(function *) { return _EXECUTE(); }
#else
virtual unsigned int execute(void) { return _EXECUTE(); }
#endif
#endif
};
}
opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return new _PASS_NAME_PASS();
}
#else
struct opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return &_PASS_NAME_PASS.pass;
}
#endif
/* clean up user provided defines */
#undef PASS_NAME
#undef NO_GENERATE_SUMMARY
#undef NO_WRITE_SUMMARY
#undef NO_READ_SUMMARY
#undef NO_WRITE_OPTIMIZATION_SUMMARY
#undef NO_READ_OPTIMIZATION_SUMMARY
#undef NO_STMT_FIXUP
#undef NO_FUNCTION_TRANSFORM
#undef NO_VARIABLE_TRANSFORM
#undef NO_GATE
#undef NO_EXECUTE
#undef FUNCTION_TRANSFORM_TODO_FLAGS_START
#undef PROPERTIES_DESTROYED
#undef PROPERTIES_PROVIDED
#undef PROPERTIES_REQUIRED
#undef TODO_FLAGS_FINISH
#undef TODO_FLAGS_START
/* clean up generated defines */
#undef _EXECUTE
#undef __EXECUTE
#undef _FUNCTION_TRANSFORM
#undef __FUNCTION_TRANSFORM
#undef _GATE
#undef __GATE
#undef _GCC_PLUGIN_CONCAT2
#undef _GCC_PLUGIN_CONCAT3
#undef _GCC_PLUGIN_STRINGIFY
#undef __GCC_PLUGIN_STRINGIFY
#undef _GENERATE_SUMMARY
#undef __GENERATE_SUMMARY
#undef _HAS_EXECUTE
#undef _HAS_GATE
#undef _MAKE_PASS_NAME_PASS
#undef __MAKE_PASS_NAME_PASS
#undef _PASS_NAME_NAME
#undef _PASS_NAME_PASS
#undef __PASS_NAME_PASS
#undef _PASS_NAME_PASS_DATA
#undef __PASS_NAME_PASS_DATA
#undef _READ_OPTIMIZATION_SUMMARY
#undef __READ_OPTIMIZATION_SUMMARY
#undef _READ_SUMMARY
#undef __READ_SUMMARY
#undef _STMT_FIXUP
#undef __STMT_FIXUP
#undef _VARIABLE_TRANSFORM
#undef __VARIABLE_TRANSFORM
#undef _WRITE_OPTIMIZATION_SUMMARY
#undef __WRITE_OPTIMIZATION_SUMMARY
#undef _WRITE_SUMMARY
#undef __WRITE_SUMMARY
#endif /* PASS_NAME */

175
scripts/gcc-plugins/gcc-generate-rtl-pass.h Normal file
View file

@ -0,0 +1,175 @@
/*
* Generator for RTL pass related boilerplate code/data
*
* Supports gcc 4.5-6
*
* Usage:
*
* 1. before inclusion define PASS_NAME
* 2. before inclusion define NO_* for unimplemented callbacks
* NO_GATE
* NO_EXECUTE
* 3. before inclusion define PROPERTIES_* and TODO_FLAGS_* to override
* the default 0 values
* 4. for convenience, all the above will be undefined after inclusion!
* 5. the only exported name is make_PASS_NAME_pass() to register with gcc
*/
#ifndef PASS_NAME
#error at least PASS_NAME must be defined
#else
#define __GCC_PLUGIN_STRINGIFY(n) #n
#define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
#define _GCC_PLUGIN_CONCAT2(x, y) x ## y
#define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
#define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
#define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
#define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
#define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
#define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
#define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
#define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
#ifdef NO_GATE
#define _GATE NULL
#define _HAS_GATE false
#else
#define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
#define _GATE __GATE(PASS_NAME)
#define _HAS_GATE true
#endif
#ifdef NO_EXECUTE
#define _EXECUTE NULL
#define _HAS_EXECUTE false
#else
#define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
#define _EXECUTE __EXECUTE(PASS_NAME)
#define _HAS_EXECUTE true
#endif
#ifndef PROPERTIES_REQUIRED
#define PROPERTIES_REQUIRED 0
#endif
#ifndef PROPERTIES_PROVIDED
#define PROPERTIES_PROVIDED 0
#endif
#ifndef PROPERTIES_DESTROYED
#define PROPERTIES_DESTROYED 0
#endif
#ifndef TODO_FLAGS_START
#define TODO_FLAGS_START 0
#endif
#ifndef TODO_FLAGS_FINISH
#define TODO_FLAGS_FINISH 0
#endif
#if BUILDING_GCC_VERSION >= 4009
namespace {
static const pass_data _PASS_NAME_PASS_DATA = {
#else
static struct rtl_opt_pass _PASS_NAME_PASS = {
.pass = {
#endif
.type = RTL_PASS,
.name = _PASS_NAME_NAME,
#if BUILDING_GCC_VERSION >= 4008
.optinfo_flags = OPTGROUP_NONE,
#endif
#if BUILDING_GCC_VERSION >= 5000
#elif BUILDING_GCC_VERSION == 4009
.has_gate = _HAS_GATE,
.has_execute = _HAS_EXECUTE,
#else
.gate = _GATE,
.execute = _EXECUTE,
.sub = NULL,
.next = NULL,
.static_pass_number = 0,
#endif
.tv_id = TV_NONE,
.properties_required = PROPERTIES_REQUIRED,
.properties_provided = PROPERTIES_PROVIDED,
.properties_destroyed = PROPERTIES_DESTROYED,
.todo_flags_start = TODO_FLAGS_START,
.todo_flags_finish = TODO_FLAGS_FINISH,
#if BUILDING_GCC_VERSION < 4009
}
#endif
};
#if BUILDING_GCC_VERSION >= 4009
class _PASS_NAME_PASS : public rtl_opt_pass {
public:
_PASS_NAME_PASS() : rtl_opt_pass(_PASS_NAME_PASS_DATA, g) {}
#ifndef NO_GATE
#if BUILDING_GCC_VERSION >= 5000
virtual bool gate(function *) { return _GATE(); }
#else
virtual bool gate(void) { return _GATE(); }
#endif
#endif
virtual opt_pass *clone() { return new _PASS_NAME_PASS(); }
#ifndef NO_EXECUTE
#if BUILDING_GCC_VERSION >= 5000
virtual unsigned int execute(function *) { return _EXECUTE(); }
#else
virtual unsigned int execute(void) { return _EXECUTE(); }
#endif
#endif
};
}
opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return new _PASS_NAME_PASS();
}
#else
struct opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return &_PASS_NAME_PASS.pass;
}
#endif
/* clean up user provided defines */
#undef PASS_NAME
#undef NO_GATE
#undef NO_EXECUTE
#undef PROPERTIES_DESTROYED
#undef PROPERTIES_PROVIDED
#undef PROPERTIES_REQUIRED
#undef TODO_FLAGS_FINISH
#undef TODO_FLAGS_START
/* clean up generated defines */
#undef _EXECUTE
#undef __EXECUTE
#undef _GATE
#undef __GATE
#undef _GCC_PLUGIN_CONCAT2
#undef _GCC_PLUGIN_CONCAT3
#undef _GCC_PLUGIN_STRINGIFY
#undef __GCC_PLUGIN_STRINGIFY
#undef _HAS_EXECUTE
#undef _HAS_GATE
#undef _MAKE_PASS_NAME_PASS
#undef __MAKE_PASS_NAME_PASS
#undef _PASS_NAME_NAME
#undef _PASS_NAME_PASS
#undef __PASS_NAME_PASS
#undef _PASS_NAME_PASS_DATA
#undef __PASS_NAME_PASS_DATA
#endif /* PASS_NAME */

175
scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h Normal file
View file

@ -0,0 +1,175 @@
/*
* Generator for SIMPLE_IPA pass related boilerplate code/data
*
* Supports gcc 4.5-6
*
* Usage:
*
* 1. before inclusion define PASS_NAME
* 2. before inclusion define NO_* for unimplemented callbacks
* NO_GATE
* NO_EXECUTE
* 3. before inclusion define PROPERTIES_* and TODO_FLAGS_* to override
* the default 0 values
* 4. for convenience, all the above will be undefined after inclusion!
* 5. the only exported name is make_PASS_NAME_pass() to register with gcc
*/
#ifndef PASS_NAME
#error at least PASS_NAME must be defined
#else
#define __GCC_PLUGIN_STRINGIFY(n) #n
#define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
#define _GCC_PLUGIN_CONCAT2(x, y) x ## y
#define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
#define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
#define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
#define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
#define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
#define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
#define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
#define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
#ifdef NO_GATE
#define _GATE NULL
#define _HAS_GATE false
#else
#define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
#define _GATE __GATE(PASS_NAME)
#define _HAS_GATE true
#endif
#ifdef NO_EXECUTE
#define _EXECUTE NULL
#define _HAS_EXECUTE false
#else
#define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
#define _EXECUTE __EXECUTE(PASS_NAME)
#define _HAS_EXECUTE true
#endif
#ifndef PROPERTIES_REQUIRED
#define PROPERTIES_REQUIRED 0
#endif
#ifndef PROPERTIES_PROVIDED
#define PROPERTIES_PROVIDED 0
#endif
#ifndef PROPERTIES_DESTROYED
#define PROPERTIES_DESTROYED 0
#endif
#ifndef TODO_FLAGS_START
#define TODO_FLAGS_START 0
#endif
#ifndef TODO_FLAGS_FINISH
#define TODO_FLAGS_FINISH 0
#endif
#if BUILDING_GCC_VERSION >= 4009
namespace {
static const pass_data _PASS_NAME_PASS_DATA = {
#else
static struct simple_ipa_opt_pass _PASS_NAME_PASS = {
.pass = {
#endif
.type = SIMPLE_IPA_PASS,
.name = _PASS_NAME_NAME,
#if BUILDING_GCC_VERSION >= 4008
.optinfo_flags = OPTGROUP_NONE,
#endif
#if BUILDING_GCC_VERSION >= 5000
#elif BUILDING_GCC_VERSION == 4009
.has_gate = _HAS_GATE,
.has_execute = _HAS_EXECUTE,
#else
.gate = _GATE,
.execute = _EXECUTE,
.sub = NULL,
.next = NULL,
.static_pass_number = 0,
#endif
.tv_id = TV_NONE,
.properties_required = PROPERTIES_REQUIRED,
.properties_provided = PROPERTIES_PROVIDED,
.properties_destroyed = PROPERTIES_DESTROYED,
.todo_flags_start = TODO_FLAGS_START,
.todo_flags_finish = TODO_FLAGS_FINISH,
#if BUILDING_GCC_VERSION < 4009
}
#endif
};
#if BUILDING_GCC_VERSION >= 4009
class _PASS_NAME_PASS : public simple_ipa_opt_pass {
public:
_PASS_NAME_PASS() : simple_ipa_opt_pass(_PASS_NAME_PASS_DATA, g) {}
#ifndef NO_GATE
#if BUILDING_GCC_VERSION >= 5000
virtual bool gate(function *) { return _GATE(); }
#else
virtual bool gate(void) { return _GATE(); }
#endif
#endif
virtual opt_pass *clone() { return new _PASS_NAME_PASS(); }
#ifndef NO_EXECUTE
#if BUILDING_GCC_VERSION >= 5000
virtual unsigned int execute(function *) { return _EXECUTE(); }
#else
virtual unsigned int execute(void) { return _EXECUTE(); }
#endif
#endif
};
}
opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return new _PASS_NAME_PASS();
}
#else
struct opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return &_PASS_NAME_PASS.pass;
}
#endif
/* clean up user provided defines */
#undef PASS_NAME
#undef NO_GATE
#undef NO_EXECUTE
#undef PROPERTIES_DESTROYED
#undef PROPERTIES_PROVIDED
#undef PROPERTIES_REQUIRED
#undef TODO_FLAGS_FINISH
#undef TODO_FLAGS_START
/* clean up generated defines */
#undef _EXECUTE
#undef __EXECUTE
#undef _GATE
#undef __GATE
#undef _GCC_PLUGIN_CONCAT2
#undef _GCC_PLUGIN_CONCAT3
#undef _GCC_PLUGIN_STRINGIFY
#undef __GCC_PLUGIN_STRINGIFY
#undef _HAS_EXECUTE
#undef _HAS_GATE
#undef _MAKE_PASS_NAME_PASS
#undef __MAKE_PASS_NAME_PASS
#undef _PASS_NAME_NAME
#undef _PASS_NAME_PASS
#undef __PASS_NAME_PASS
#undef _PASS_NAME_PASS_DATA
#undef __PASS_NAME_PASS_DATA
#endif /* PASS_NAME */

144
scripts/gcc-plugins/sancov_plugin.c Normal file
View file

@ -0,0 +1,144 @@
/*
* Copyright 2011-2016 by Emese Revfy <re.emese@gmail.com>
* Licensed under the GPL v2, or (at your option) v3
*
* Homepage:
* https://github.com/ephox-gcc-plugins/sancov
*
* This plugin inserts a __sanitizer_cov_trace_pc() call at the start of basic blocks.
* It supports all gcc versions with plugin support (from gcc-4.5 on).
* It is based on the commit "Add fuzzing coverage support" by Dmitry Vyukov <dvyukov@google.com>.
*
* You can read about it more here:
* https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision=231296
* http://lwn.net/Articles/674854/
* https://github.com/google/syzkaller
* https://lwn.net/Articles/677764/
*
* Usage:
* make run
*/
#include "gcc-common.h"
int plugin_is_GPL_compatible;
tree sancov_fndecl;
static struct plugin_info sancov_plugin_info = {
.version = "20160402",
.help = "sancov plugin\n",
};
static unsigned int sancov_execute(void)
{
basic_block bb;
/* Remove this line when this plugin and kcov will be in the kernel.
if (!strcmp(DECL_NAME_POINTER(current_function_decl), DECL_NAME_POINTER(sancov_fndecl)))
return 0;
*/
FOR_EACH_BB_FN(bb, cfun) {
const_gimple stmt;
gcall *gcall;
gimple_stmt_iterator gsi = gsi_after_labels(bb);
if (gsi_end_p(gsi))
continue;
stmt = gsi_stmt(gsi);
gcall = as_a_gcall(gimple_build_call(sancov_fndecl, 0));
gimple_set_location(gcall, gimple_location(stmt));
gsi_insert_before(&gsi, gcall, GSI_SAME_STMT);
}
return 0;
}
#define PASS_NAME sancov
#define NO_GATE
#define TODO_FLAGS_FINISH TODO_dump_func | TODO_verify_stmts | TODO_update_ssa_no_phi | TODO_verify_flow
#include "gcc-generate-gimple-pass.h"
static void sancov_start_unit(void __unused *gcc_data, void __unused *user_data)
{
tree leaf_attr, nothrow_attr;
tree BT_FN_VOID = build_function_type_list(void_type_node, NULL_TREE);
sancov_fndecl = build_fn_decl("__sanitizer_cov_trace_pc", BT_FN_VOID);
DECL_ASSEMBLER_NAME(sancov_fndecl);
TREE_PUBLIC(sancov_fndecl) = 1;
DECL_EXTERNAL(sancov_fndecl) = 1;
DECL_ARTIFICIAL(sancov_fndecl) = 1;
DECL_PRESERVE_P(sancov_fndecl) = 1;
DECL_UNINLINABLE(sancov_fndecl) = 1;
TREE_USED(sancov_fndecl) = 1;
nothrow_attr = tree_cons(get_identifier("nothrow"), NULL, NULL);
decl_attributes(&sancov_fndecl, nothrow_attr, 0);
gcc_assert(TREE_NOTHROW(sancov_fndecl));
#if BUILDING_GCC_VERSION > 4005
leaf_attr = tree_cons(get_identifier("leaf"), NULL, NULL);
decl_attributes(&sancov_fndecl, leaf_attr, 0);
#endif
}
int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
{
int i;
struct register_pass_info sancov_plugin_pass_info;
const char * const plugin_name = plugin_info->base_name;
const int argc = plugin_info->argc;
const struct plugin_argument * const argv = plugin_info->argv;
bool enable = true;
static const struct ggc_root_tab gt_ggc_r_gt_sancov[] = {
{
.base = &sancov_fndecl,
.nelt = 1,
.stride = sizeof(sancov_fndecl),
.cb = &gt_ggc_mx_tree_node,
.pchw = &gt_pch_nx_tree_node
},
LAST_GGC_ROOT_TAB
};
/* BBs can be split afterwards?? */
sancov_plugin_pass_info.pass = make_sancov_pass();
#if BUILDING_GCC_VERSION >= 4009
sancov_plugin_pass_info.reference_pass_name = "asan";
#else
sancov_plugin_pass_info.reference_pass_name = "nrv";
#endif
sancov_plugin_pass_info.ref_pass_instance_number = 0;
sancov_plugin_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
if (!plugin_default_version_check(version, &gcc_version)) {
error(G_("incompatible gcc/plugin versions"));
return 1;
}
for (i = 0; i < argc; ++i) {
if (!strcmp(argv[i].key, "no-sancov")) {
enable = false;
continue;
}
error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
}
register_callback(plugin_name, PLUGIN_INFO, NULL, &sancov_plugin_info);
if (!enable)
return 0;
#if BUILDING_GCC_VERSION < 6000
register_callback(plugin_name, PLUGIN_START_UNIT, &sancov_start_unit, NULL);
register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_sancov);
register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &sancov_plugin_pass_info);
#endif
return 0;
}

2
scripts/link-vmlinux.sh
View file

@ -180,7 +180,7 @@ 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}"
kallsymso=""
kallsyms_vmlinux=""

1
scripts/package/builddeb
View file

@ -329,6 +329,7 @@ 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 $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$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 -)

2
scripts/setlocalversion
View file

@ -143,7 +143,7 @@ fi
if test -e include/config/auto.conf; then
. include/config/auto.conf
else
echo "Error: kernelrelease not valid - run 'make prepare' to update it"
echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
exit 1
fi