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uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
NO_PERF_REGS := 1
# Additional ARCH settings for x86
ifeq ($(ARCH),i386)
override ARCH := x86
NO_PERF_REGS := 0
LIBUNWIND_LIBS = -lunwind -lunwind-x86
endif
ifeq ($(ARCH),x86_64)
override ARCH := x86
IS_X86_64 := 0
ifeq (, $(findstring m32,$(EXTRA_CFLAGS)))
IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -x c - | tail -n 1)
endif
ifeq (${IS_X86_64}, 1)
RAW_ARCH := x86_64
ARCH_CFLAGS := -DARCH_X86_64
ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
endif
NO_PERF_REGS := 0
LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
endif
ifeq ($(NO_PERF_REGS),0)
BASIC_CFLAGS += -DHAVE_PERF_REGS
endif
-include config/feature-tests.mak
ifeq ($(call get-executable,$(FLEX)),)
dummy := $(error Error: $(FLEX) is missing on this system, please install it)
endif
ifeq ($(call get-executable,$(BISON)),)
dummy := $(error Error: $(BISON) is missing on this system, please install it)
endif
# Treat warnings as errors unless directed not to
ifneq ($(WERROR),0)
CFLAGS_WERROR := -Werror
endif
ifeq ("$(origin DEBUG)", "command line")
PERF_DEBUG = $(DEBUG)
endif
ifndef PERF_DEBUG
CFLAGS_OPTIMIZE = -O6
endif
ifdef PARSER_DEBUG
PARSER_DEBUG_BISON := -t
PARSER_DEBUG_FLEX := -d
PARSER_DEBUG_CFLAGS := -DPARSER_DEBUG
endif
CFLAGS = -fno-omit-frame-pointer -ggdb3 -funwind-tables -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS)
EXTLIBS = -lpthread -lrt -lelf -lm
ALL_CFLAGS = $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
ALL_LDFLAGS = $(LDFLAGS)
ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -fstack-protector-all,-fstack-protector-all),y)
CFLAGS := $(CFLAGS) -fstack-protector-all
endif
ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wstack-protector,-Wstack-protector),y)
CFLAGS := $(CFLAGS) -Wstack-protector
endif
ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wvolatile-register-var,-Wvolatile-register-var),y)
CFLAGS := $(CFLAGS) -Wvolatile-register-var
endif
ifndef PERF_DEBUG
ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -D_FORTIFY_SOURCE=2,-D_FORTIFY_SOURCE=2),y)
CFLAGS := $(CFLAGS) -D_FORTIFY_SOURCE=2
endif
endif
BASIC_CFLAGS += \
-Iutil/include \
-Iarch/$(ARCH)/include \
$(if $(objtree),-I$(objtree)/arch/$(ARCH)/include/generated/uapi) \
-I$(srctree)/arch/$(ARCH)/include/uapi \
-I$(srctree)/arch/$(ARCH)/include \
$(if $(objtree),-I$(objtree)/include/generated/uapi) \
-I$(srctree)/include/uapi \
-I$(srctree)/include \
-I$(OUTPUT)util \
-Iutil \
-I. \
-I$(TRACE_EVENT_DIR) \
-I../lib/ \
-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
BASIC_LDFLAGS =
ifeq ($(call try-cc,$(SOURCE_BIONIC),$(CFLAGS),bionic),y)
BIONIC := 1
EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
BASIC_CFLAGS += -I.
endif
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