361 lines
11 KiB
Makefile
361 lines
11 KiB
Makefile
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# -*-Makefile-*-
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#
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# This is the main Makefile
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# Target tools
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CC=$(CROSS)gcc$(POSTFIX)
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LD=$(CROSS)ld$(POSTFIX)
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AS=$(CROSS)as
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AR=$(CROSS)ar
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NM=$(CROSS)nm
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OBJCOPY=$(CROSS)objcopy
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OBJDUMP=$(CROSS)objdump
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SIZE=$(CROSS)size
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LD_TEXT=0x0
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NM += --synthetic
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try = $(shell set -e; if ($(1)) >/dev/null 2>&1; \
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then echo "$(2)"; \
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else echo "$(3)"; fi )
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try-cflag = $(call try,$(1) $(2) -x c -c /dev/null -o /dev/null,$(2))
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test_cflag = $(call try,$(1) $(2) -x c -c /dev/null -o /dev/null,1,0)
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cc-name := $(shell $(CC) -v 2>&1 | grep -q "clang version" && echo clang || echo gcc)
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# Base warnings
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CWARNS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
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-Werror-implicit-function-declaration -Wdeclaration-after-statement \
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-Wno-pointer-sign -Wextra -Wno-sign-compare \
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-Wmissing-prototypes -Wmissing-declarations \
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-Wwrite-strings -Wcast-align \
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-Winit-self \
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$(call try-cflag,$(CC),--Wno-stringop-truncation) \
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-Werror
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# Host tools and options
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HOSTCC=gcc
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HOSTEND=$(shell uname -m | sed -e 's/^i.*86$$/LITTLE/' -e 's/^x86.*/LITTLE/' -e 's/^ppc64le/LITTLE/' -e 's/^ppc.*/BIG/')
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HOSTCFLAGS=-O1 $(CWARNS) -DHAVE_$(HOSTEND)_ENDIAN -MMD
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HOSTCFLAGS += $(call try-cflag,$(HOSTCC),-std=gnu11)
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HOSTCFLAGS += $(call try-cflag,$(HOSTCC),-m64)
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HOSTCFLAGS += $(call try-cflag,$(HOSTCC),-Wjump-misses-init) \
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$(call try-cflag,$(HOSTCC),-Wsuggest-attribute=const) \
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$(call try-cflag,$(HOSTCC),-Wsuggest-attribute=noreturn)
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HOSTCFLAGS += -DDEBUG -DCCAN_LIST_DEBUG
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# We want small stack usage for skiboot
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# but host compilation of unit tests tend to inline heavily,
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# which creates larger stack frames and triggering useless warnings
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HOSTCFLAGS += -Wframe-larger-than=4096
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CWARNS += -Wframe-larger-than=1024
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HOSTGCOVCFLAGS = -fprofile-arcs -ftest-coverage -lgcov -O0 -g -pg
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VALGRIND := valgrind -q --show-reachable=yes --error-exitcode=99
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# Target options
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OPTS=-Os
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DBG=-g
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CPPFLAGS := -I$(SRC)/include -Iinclude -MMD -include $(SRC)/include/config.h
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CPPFLAGS += -I$(SRC)/libfdt -I$(SRC)/libflash -I$(SRC)/libxz -I$(SRC)/libc/include -I$(SRC)
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CPPFLAGS += -I$(SRC)/libpore
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CPPFLAGS += -D__SKIBOOT__ -nostdinc
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CPPFLAGS += -isystem $(shell $(CC) -print-file-name=include)
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CPPFLAGS += -DBITS_PER_LONG=64 -DHAVE_BIG_ENDIAN
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# We might want to remove our copy of stdint.h
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# but that means uint64_t becomes an ulong instead of an ullong
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# causing all our printf's to warn
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CPPFLAGS += -ffreestanding
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ifeq ($(DEBUG),1)
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CPPFLAGS += -DDEBUG -DCCAN_LIST_DEBUG
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endif
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CFLAGS := -fno-strict-aliasing -pie -fpie -fno-pic -mbig-endian -m64 -fno-asynchronous-unwind-tables
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CFLAGS += -mcpu=power7
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CFLAGS += -Wl,--oformat,elf64-powerpc -ggdb
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CFLAGS += $(call try-cflag,$(CC),-ffixed-r13)
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CFLAGS += $(call try-cflag,$(CC),-std=gnu11)
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ifeq ($(ELF_ABI_v2),1)
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CFLAGS += $(call try-cflag,$(CC),-mabi=elfv2)
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else
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CFLAGS += $(call try-cflag,$(CC),-mabi=elfv1)
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endif
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ifeq ($(DEAD_CODE_ELIMINATION),1)
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CFLAGS += -ffunction-sections -fdata-sections
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endif
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ifeq ($(SKIBOOT_GCOV),1)
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CFLAGS += -fprofile-arcs -ftest-coverage -DSKIBOOT_GCOV=1
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endif
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ifeq ($(USE_VALGRIND),1)
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CFLAGS += -DUSE_VALGRIND=1
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else
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VALGRIND :=
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endif
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# Check if the new parametrized stack protector option is supported
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# by gcc, otherwise disable stack protector
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STACK_PROT_CFLAGS := -mstack-protector-guard=tls -mstack-protector-guard-reg=r13
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STACK_PROT_CFLAGS += -mstack-protector-guard-offset=0
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HAS_STACK_PROT := $(call test_cflag,$(CC),$(STACK_PROT_CFLAGS))
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ifeq ($(STACK_CHECK),1)
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STACK_PROT_CFLAGS += -fstack-protector-all
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CPPFLAGS += -DSTACK_CHECK_ENABLED
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CFLAGS += -pg
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else
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STACK_PROT_CFLAGS += -fstack-protector
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STACK_PROT_CFLAGS += $(call try-cflag,$(CC),-fstack-protector-strong)
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endif
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ifeq ($(HAS_STACK_PROT),1)
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CPPFLAGS += -DHAS_STACK_PROT
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CFLAGS += $(STACK_PROT_CFLAGS)
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else
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CFLAGS += -fno-stack-protector
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endif
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CFLAGS += $(call try-cflag,$(CC),-Wjump-misses-init) \
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$(call try-cflag,$(CC),-Wsuggest-attribute=const) \
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$(call try-cflag,$(CC),-Wsuggest-attribute=noreturn) \
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$(call try-cflag,$(CC),-Wstack-usage=1024) \
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$(call try-cflag,$(CC),-Wno-error=address-of-packed-member)
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CFLAGS += $(CWARNS) $(OPTS) $(DBG)
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LDFLAGS := -m64 -static -nostdlib -pie
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LDFLAGS += -Wl,-pie
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LDFLAGS += -Wl,-Ttext-segment,$(LD_TEXT) -Wl,-N -Wl,--build-id=none
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LDFLAGS += -Wl,--no-multi-toc
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LDFLAGS += -mcpu=power7 -mbig-endian -Wl,--oformat,elf64-powerpc
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LDFLAGS_FINAL = -EB -m elf64ppc --no-multi-toc -N --build-id=none --whole-archive
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LDFLAGS_FINAL += -static -nostdlib -pie -Ttext-segment=$(LD_TEXT) --oformat=elf64-powerpc
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LDFLAGS_FINAL += --orphan-handling=warn
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LDRFLAGS=-melf64ppc
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# Debug stuff
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#LDFLAGS += -Wl,-v -Wl,-Map,foomap
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ifeq ($(DEAD_CODE_ELIMINATION),1)
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LDFLAGS += -Wl,--gc-sections
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endif
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AFLAGS := -D__ASSEMBLY__ -mbig-endian -m64
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ifeq ($(ELF_ABI_v2),1)
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AFLAGS += $(call try-cflag,$(CC),-mabi=elfv2)
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else
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AFLAGS += $(call try-cflag,$(CC),-mabi=elfv1)
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endif
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ifeq ($(cc-name),clang)
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CLANG_TARGET := --target=powerpc64-linux-gnu -mcpu=pwr8
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GCC_TOOLCHAIN := $(realpath $(dir $(shell which $(LD)))/..)
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ifneq ($(GCC_TOOLCHAIN),)
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CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
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endif
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CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
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AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
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LDFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
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# Workarounds
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# TODO: Fix the issues these hide, and remove them
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CFLAGS += -Wno-cast-align \
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-Wno-unused-command-line-argument \
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-Wno-unknown-warning-option \
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-Wno-gnu-variable-sized-type-not-at-end \
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-Wno-address-of-packed-member \
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-Wno-error=ignored-attributes
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# pci_add_device_nodes is the largest, at 2048 with clang-7 (smaller with older
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# versions)
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CFLAGS += -Wframe-larger-than=2048
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endif
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# Special tool flags:
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# Do not use the floating point unit
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CFLAGS += -msoft-float
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# Do not use string instructions
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CFLAGS += $(call try-cflag,$(CC),-mno-string)
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# do not use load/store multiple word instrcutions
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CFLAGS += $(call try-cflag,$(CC),-mno-multiple)
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# Do not use any automatic vector foo. While it would be safe during boot, we
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# don't save/restore across OPAL calls
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CFLAGS += -mno-vsx -mno-altivec
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# Do not use load/store update. You REALLY do not want to use this!
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# The async safety of the ABI stack depends on the atomicity
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# of update on store.
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#CFLAGS += -mno-update
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ifneq ($(KERNEL),)
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CPPFLAGS += -DBUILTIN_KERNEL="\"$(KERNEL)\""
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endif
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CHECK = sparse
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CHECKFLAGS := $(CF)
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CHECK_CFLAGS_SKIP = -std=gnu11
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.SECONDARY:
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vpath %.c $(SRC)
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vpath %.C $(SRC)
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vpath %.S $(SRC)
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default: all
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include/asm-offsets.h: asm/asm-offsets.s
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@mkdir -p include
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$(call Q,GN, $(SRC)/make_offsets.sh $< >$@, $@)
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TARGET = skiboot
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include $(SRC)/asm/Makefile.inc
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include $(SRC)/core/Makefile.inc
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include $(SRC)/hw/Makefile.inc
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include $(SRC)/platforms/Makefile.inc
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include $(SRC)/libfdt/Makefile.inc
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include $(SRC)/libflash/Makefile.inc
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include $(SRC)/libxz/Makefile.inc
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include $(SRC)/libpore/Makefile.inc
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include $(SRC)/libc/Makefile.inc
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include $(SRC)/ccan/Makefile.inc
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include $(SRC)/$(DEVSRC)/Makefile.inc
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include $(SRC)/libstb/Makefile.inc
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# hack for travis-ci and coverity
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gard:
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(cd external/gard; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make)
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coverage: gard-coverage
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gard-coverage:
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(cd external/gard; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make coverage)
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pflash:
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(cd external/pflash; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make)
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coverage: pflash-coverage
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pflash-coverage:
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(cd external/pflash; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make coverage)
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pflash-coverity:
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(cd external/pflash; ./build-all-arch.sh)
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all: $(SUBDIRS) $(TARGET).lid $(TARGET).lid.xz $(TARGET).map extract-gcov
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all: $(TARGET).lid.stb $(TARGET).lid.xz.stb
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OBJS := $(ASM) $(CORE) $(HW) $(PLATFORMS) $(LIBFDT) $(LIBXZ) $(LIBFLASH) $(LIBSTB)
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OBJS += $(LIBC) $(CCAN) $(DEVSRC_OBJ) $(LIBPORE)
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OBJS_NO_VER = $(OBJS)
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ALL_OBJS = $(OBJS) version.o
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ALL_OBJS_1 = $(TARGET).tmp.a asm/dummy_map.o
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ALL_OBJS_2 = $(TARGET).tmp.a asm/real_map.o
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$(TARGET).lid.xz: $(TARGET).lid
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$(call Q,XZ, cat $^ | xz -9 -C crc32 > $@, $@)
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$(TARGET).lid: $(TARGET).elf
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$(call Q,OBJCOPY, $(OBJCOPY) -O binary -S $^ $@, $@)
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$(TARGET).lid.stb: $(TARGET).lid libstb/create-container
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$(call Q,STB-DEVELOPMENT-SIGNED-CONTAINER,$(SRC)/libstb/sign-with-local-keys.sh $< $@ $(SRC)/libstb/keys/ PAYLOAD,$@)
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$(TARGET).lid.xz.stb: $(TARGET).lid.xz libstb/create-container
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$(call Q,STB-DEVELOPMENT-SIGNED-CONTAINER,$(SRC)/libstb/sign-with-local-keys.sh $< $@ $(SRC)/libstb/keys/ PAYLOAD,$@)
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$(TARGET).tmp.a: $(ALL_OBJS)
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@rm -f $(TARGET).tmp.a
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$(call Q,AR, $(AR) rcsTPD $@ $(ALL_OBJS), $@)
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$(TARGET).tmp.elf: $(ALL_OBJS_1) $(TARGET).lds $(KERNEL)
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$(call Q,LD, $(LD) $(LDFLAGS_FINAL) -o $@ -T $(TARGET).lds $(ALL_OBJS_1), $@)
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asm/real_map.o : $(TARGET).tmp.map
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$(TARGET).elf: $(ALL_OBJS_2) $(TARGET).lds $(KERNEL)
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$(call Q,LD, $(LD) $(LDFLAGS_FINAL) -o $@ -T $(TARGET).lds $(ALL_OBJS_2), $@)
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$(SUBDIRS):
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$(call Q,MKDIR,mkdir -p $@, $@)
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-include $(wildcard *.d)
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-include $(wildcard $(SUBDIRS:%=%/*.d))
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# Set V=1 if you want to see everything.
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include $(SRC)/Makefile.rules
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VERSION ?= $(shell cd $(SRC); GIT_DIR=$(SRC)/.git $(SRC)/make_version.sh)
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.PHONY: VERSION-always
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.version: VERSION-always
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@echo $(VERSION) > $@.tmp
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@cmp -s $@ $@.tmp || cp $@.tmp $@
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@rm -f $@.tmp
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version.c: $(SRC)/make_version.sh $(OBJS_NO_VER) .version
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@(if [ "a$(VERSION)" = "a" ]; then \
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echo "#error You need to set SKIBOOT_VERSION environment variable" > $@ ;\
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else \
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echo "const char version[] = \"$(VERSION)\";" ;\
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fi) > $@
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.PHONY: coverage
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include $(shell find $(SRC)/* -name Makefile.check)
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extract-gcov: extract-gcov.c
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$(call Q, HOSTCC ,$(HOSTCC) $(HOSTCFLAGS) \
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-DTARGET__GNUC__=`echo '__GNUC__'|$(CC) -E -|grep -v '^#'` \
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-DTARGET__GNUC_MINOR__=`echo '__GNUC_MINOR__'|$(CC) -E -|grep -v '^#'` \
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-Wpadded -O0 -g -I$(SRC) -o $@ $<,$<)
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coverage-report: skiboot.info
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genhtml --branch-coverage -q -o $@ $<
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# A rather nasty hack here that relies on the lcov file format
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external/pflash/pflash.info: coverage
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(cd external/pflash; lcov -q -c -d . -o pflash.info --rc lcov_branch_coverage=1; sed -i -e 's%external/pflash/libflash%libflash%; s%external/pflash/ccan%ccan%' pflash.info)
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external/gard/gard.info: coverage
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(cd external/gard; lcov -q -c -d . -o gard.info --rc lcov_branch_coverage=1; sed -i -e 's%external/gard/libflash%libflash%; s%external/gard/ccan%ccan%' gard.info)
|
||
|
|
|
||
|
|
skiboot.info: coverage external/pflash/pflash.info external/gard/gard.info
|
||
|
|
lcov -q -c -d . $(LCOV_DIRS) -o $@ --rc lcov_branch_coverage=1
|
||
|
|
lcov -q -r $@ 'external/pflash/*' -o $@
|
||
|
|
lcov -q -r $@ 'external/gard/*' -o $@
|
||
|
|
lcov -q -a $@ -a external/pflash/pflash.info -o $@
|
||
|
|
lcov -q -a $@ -a external/gard/gard.info -o $@
|
||
|
|
lcov -q -r $@ $(LCOV_EXCLUDE) -o $@ --rc lcov_branch_coverage=1
|
||
|
|
|
||
|
|
doc:
|
||
|
|
make -C doc html
|
||
|
|
|
||
|
|
tags:
|
||
|
|
find . -name '*.[chS]' | xargs ctags
|
||
|
|
|
||
|
|
TAGS:
|
||
|
|
find . -name '*.[chS]' | xargs etags
|
||
|
|
|
||
|
|
.PHONY: tags TAGS check coverage doc
|
||
|
|
|
||
|
|
cscope:
|
||
|
|
find . -name '*.[chS]' | xargs cscope
|
||
|
|
|
||
|
|
clean:
|
||
|
|
$(RM) *.[odsa] $(SUBDIRS:%=%/*.[odsa])
|
||
|
|
$(RM) *.gcno $(SUBDIRS:%=%/*.gcno)
|
||
|
|
$(RM) *.gcda $(SUBDIRS:%=%/*.gcda)
|
||
|
|
$(RM) *.elf $(TARGET).lid *.map $(TARGET).lds $(TARGET).lid.xz
|
||
|
|
$(RM) include/asm-offsets.h version.c .version
|
||
|
|
$(RM) skiboot.info external/gard/gard.info external/pflash/pflash.info
|
||
|
|
$(RM) extract-gcov $(TARGET).lid.stb $(TARGET).lid.xz.stb
|
||
|
|
|
||
|
|
distclean: clean
|
||
|
|
$(RM) *~ $(SUBDIRS:%=%/*~) include/*~
|
||
|
|
|