diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/Kconfig | 37 | ||||
| -rw-r--r-- | arch/alpha/boot/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/boot/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/kvm/Makefile | 2 | ||||
| -rw-r--r-- | arch/s390/boot/compressed/Makefile | 4 | ||||
| -rw-r--r-- | arch/um/Kconfig.common | 1 | ||||
| -rw-r--r-- | arch/um/Makefile | 4 | ||||
| -rw-r--r-- | arch/x86/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86/boot/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/entry/vdso/Makefile | 3 | ||||
| -rw-r--r-- | arch/x86/purgatory/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/Makefile | 2 |
14 files changed, 54 insertions, 10 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 15996290fed4..bd8056b5b246 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -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 diff --git a/arch/alpha/boot/Makefile b/arch/alpha/boot/Makefile index 8399bd0e68e8..0cbe4c59d3ce 100644 --- a/arch/alpha/boot/Makefile +++ b/arch/alpha/boot/Makefile @@ -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) $(obj)/vmlinux.nh diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 14b4cf75ceec..fc3dc0b90be2 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -54,6 +54,7 @@ config ARM select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) + select HAVE_GCC_PLUGINS select HAVE_GENERIC_DMA_COHERENT select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)) select HAVE_IDE if PCI || ISA || PCMCIA diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 9f8b99e20557..1b06db571fff 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -78,6 +78,7 @@ config ARM64 select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_GCC_PLUGINS select HAVE_GENERIC_DMA_COHERENT select HAVE_HW_BREAKPOINT if PERF_EVENTS select HAVE_IRQ_TIME_ACCOUNTING diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 4cd612a6e272..1a2a6e8dc40d 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -43,7 +43,7 @@ ifeq ($(call cc-option-yn, -fstack-protector),y) BOOTCFLAGS += -fno-stack-protector endif -BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) +BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj) DTC_FLAGS ?= -p 1024 diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile index eba0bea6e032..1f9e5529e692 100644 --- a/arch/powerpc/kvm/Makefile +++ b/arch/powerpc/kvm/Makefile @@ -20,7 +20,7 @@ common-objs-y += powerpc.o emulate.o emulate_loadstore.o obj-$(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) \ diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index 13723c39e58e..33ba697c782d 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -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 diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index cc0013475444..58650d098fb4 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -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 diff --git a/arch/um/Makefile b/arch/um/Makefile index e3abe6f3156d..0ca46ededfc7 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -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 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2fa55851d2a9..3a9add58d794 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -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 diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index be8e688fa0d4..12ea8f8384f4 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -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 diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index 6ba89a1ab0e5..d5409660f5de 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -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) diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile index 12734a96df47..ac58c1616408 100644 --- a/arch/x86/purgatory/Makefile +++ b/arch/x86/purgatory/Makefile @@ -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. diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index c556c5ae8de5..25012abc3409 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -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 |