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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 16:37:12 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 16:37:12 -0400
commitf716a85cd6045c994011268223706642cff7e485 (patch)
treec8c0c0c38c3ed23bd274d6da54c4cfdc5b7d8ee6 /Makefile
parent221bb8a46e230b9824204ae86537183d9991ff2a (diff)
parenta519167e753e6a89476115375b65a7eb6ec485b3 (diff)
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
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
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile45
1 files changed, 23 insertions, 22 deletions
diff --git a/Makefile b/Makefile
index 393b6159ae92..d6d401bf9d95 100644
--- a/Makefile
+++ b/Makefile
@@ -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) \