4b94dc3092
If -fstack-protector-all is enabled, gcc linker will need GCC SSP(Stack Smashing Protector) support, Since the implement of SSP is related to the OS, most of embedded toolchain does not provide ssp support, so an error will be reported when linking: enable CONFIG_LTO_FULL && CONFIG_STACK_CANARIES arm-none-eabi/bin/ld: cannot find -lssp_nonshared: No such file or directory arm-none-eabi/bin/ld: cannot find -lssp: No such file or directory https://github.com/gcc-mirror/gcc/blob/master/gcc/gcc.cc#L983-L985 Since nuttx has already implemented SSP related hook functions, so in this PR, we filter out this option in the link phase to ensure that the implementation of lssp/lssp_nonshared will not be referenced Signed-off-by: chao an <anchao@xiaomi.com>
246 lines
6.8 KiB
Makefile
246 lines
6.8 KiB
Makefile
############################################################################
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# arch/risc-v/src/Makefile
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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include $(TOPDIR)/Make.defs
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include chip/Make.defs
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ifeq ($(CONFIG_OPENSBI),y)
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include opensbi/Make.defs
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else ifeq ($(CONFIG_NUTTSBI),y)
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include nuttsbi/Make.defs
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endif
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# Kernel runs in supervisor mode or machine mode ?
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ifeq ($(CONFIG_ARCH_USE_S_MODE),y)
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include common/supervisor/Make.defs
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endif
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ARCH_SRCDIR = $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src
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INCLUDES += ${INCDIR_PREFIX}$(ARCH_SRCDIR)$(DELIM)chip
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INCLUDES += ${INCDIR_PREFIX}$(ARCH_SRCDIR)$(DELIM)common
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INCLUDES += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)sched
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CPPFLAGS += $(INCLUDES)
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CFLAGS += $(INCLUDES)
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CXXFLAGS += $(INCLUDES)
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AFLAGS += $(INCLUDES)
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NUTTX = $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx$(EXEEXT))
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# Additional rules for system call wrapper
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ifeq ($(CONFIG_SCHED_INSTRUMENTATION_SYSCALL),y)
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EXTRALINKCMDS += @$(TOPDIR)/syscall/syscall_wraps.ldcmd
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endif
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# The "head" object
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HEAD_OBJ = $(HEAD_ASRC:.S=$(OBJEXT))
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STARTUP_OBJS ?= $(HEAD_OBJ)
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# Flat build or kernel-mode objects
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ASRCS = $(CHIP_ASRCS) $(CMN_ASRCS) $(SBI_ASRCS)
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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CSRCS = $(CHIP_CSRCS) $(CMN_CSRCS) $(SBI_CSRCS)
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COBJS = $(CSRCS:.c=$(OBJEXT))
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SRCS = $(ASRCS) $(CSRCS)
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OBJS = $(AOBJS) $(COBJS)
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# User-mode objects
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UASRCS = $(CHIP_UASRCS) $(CMN_UASRCS)
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UAOBJS = $(UASRCS:.S=$(OBJEXT))
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UCSRCS = $(CHIP_UCSRCS) $(CMN_UCSRCS)
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UCOBJS = $(UCSRCS:.c=$(OBJEXT))
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USRCS = $(UASRCS) $(UCSRCS)
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UOBJS = $(UAOBJS) $(UCOBJS)
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KBIN = libkarch$(LIBEXT)
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BIN = libarch$(LIBEXT)
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$(foreach lib,$(notdir $(wildcard $(APPDIR)$(DELIM)staging$(DELIM)*$(LIBEXT))), \
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$(foreach elib,$(EXTRA_LIBS), \
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$(if $(filter $(notdir $(elib)),$(lib)), \
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$(eval NAMEFULL_LIBS+=$(elib)), \
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$(if $(filter $(notdir $(elib)),$(patsubst lib%$(LIBEXT),-l%,$(lib))), \
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$(eval NAMESPEC_LIBS+=$(elib)) \
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) \
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) \
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) \
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)
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EXTRA_LIBS := $(filter-out $(NAMEFULL_LIBS) $(NAMESPEC_LIBS),$(EXTRA_LIBS))
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EXTRA_LIBS += $(wildcard $(APPDIR)$(DELIM)staging$(DELIM)*$(LIBEXT))
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ARCHSCRIPT := $(call CONVERT_PATH,$(ARCHSCRIPT))
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LDFLAGS += $(addprefix -T,$(addsuffix .tmp,$(ARCHSCRIPT))) $(EXTRALINKCMDS)
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ifeq ($(LD),$(CC))
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ifeq ($(CONFIG_STACK_CANARIES),y)
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# filter out ssp(Stack Smashing Protector) related flags:
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# -fstack-protector
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# -fstack-protector-all
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# -fstack-protector-strong
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# -fstack-protector-explicit
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STRIPCFLAGS = $(filter -fstack-protector%,$(CFLAGS))
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endif
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LDSTARTGROUP ?= -Wl,--start-group
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LDENDGROUP ?= -Wl,--end-group
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LDFLAGS := $(addprefix -Xlinker ,$(LDFLAGS))
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LDFLAGS += $(filter-out $(STRIPCFLAGS),$(CFLAGS))
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else
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LDSTARTGROUP ?= --start-group
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LDENDGROUP ?= --end-group
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endif
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BOARDMAKE = $(if $(wildcard board$(DELIM)Makefile),y,)
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LIBPATHS += -L $(call CONVERT_PATH,$(TOPDIR)$(DELIM)staging)
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ifeq ($(BOARDMAKE),y)
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LIBPATHS += -L $(call CONVERT_PATH,$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board)
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endif
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LDLIBS = $(patsubst %.a,%,$(patsubst lib%,-l%,$(LINKLIBS)))
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ifeq ($(BOARDMAKE),y)
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LDLIBS += -lboard
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endif
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VPATH += chip
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VPATH += common
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VPATH += $(SBI_DIR)
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VPATH += $(ARCH_SUBDIR)
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VPATH += $(CHIP_DIR)
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all: $(HEAD_OBJ) $(BIN)
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.PHONY: board/libboard$(LIBEXT)
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$(AOBJS) $(UAOBJS) $(HEAD_OBJ): %$(OBJEXT): %.S
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$(call ASSEMBLE, $<, $@)
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$(COBJS) $(UCOBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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crt0$(OBJEXT): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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ifeq ($(CONFIG_BUILD_FLAT),y)
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$(BIN): $(OBJS)
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$(call ARCHIVE, $@, $(OBJS))
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else
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$(BIN): $(UOBJS)
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$(call ARCHIVE, $@, $(UOBJS))
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endif
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$(KBIN): $(OBJS)
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$(call ARCHIVE, $@, $(OBJS))
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board/libboard$(LIBEXT):
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$(Q) $(MAKE) -C board libboard$(LIBEXT) EXTRAFLAGS="$(EXTRAFLAGS)"
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define LINK_ALLSYMS
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$(Q) $(TOPDIR)/tools/mkallsyms.py $(NUTTX) allsyms.tmp
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$(Q) $(call COMPILE, allsyms.tmp, allsyms$(OBJEXT), -x c)
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$(Q) $(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) $(EXTRA_LIBPATHS) \
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-o $(NUTTX) $(HEAD_OBJ) allsyms$(OBJEXT) $(EXTRA_OBJS) \
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$(LDSTARTGROUP) $(LDLIBS) $(EXTRA_LIBS) $(LDENDGROUP)
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$(Q) $(call DELFILE, allsyms.tmp allsyms$(OBJEXT))
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endef
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$(addsuffix .tmp,$(ARCHSCRIPT)): $(ARCHSCRIPT)
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$(call PREPROCESS, $(patsubst %.tmp,%,$@), $@)
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nuttx$(EXEEXT): $(HEAD_OBJ) board/libboard$(LIBEXT) $(addsuffix .tmp,$(ARCHSCRIPT))
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$(Q) echo "LD: nuttx"
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ifneq ($(CONFIG_ALLSYMS),y)
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$(Q) $(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) $(EXTRA_LIBPATHS) \
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-o $(NUTTX) $(HEAD_OBJ) $(EXTRA_OBJS) \
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$(LDSTARTGROUP) $(LDLIBS) $(EXTRA_LIBS) $(LDENDGROUP)
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else
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$(Q) # Link and generate default table
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$(Q) $(if $(wildcard $(shell echo $(NUTTX))),,$(call LINK_ALLSYMS,$^))
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$(Q) # Extract all symbols
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$(Q) $(call LINK_ALLSYMS, $^)
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$(Q) # Extract again since the table offset may changed
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$(Q) $(call LINK_ALLSYMS, $^)
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endif
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ifneq ($(CONFIG_WINDOWS_NATIVE),y)
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$(Q) $(NM) $(NUTTX) | \
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grep -v '\(compiled\)\|\(\$(OBJEXT)$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
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sort > $(TOPDIR)/System.map
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endif
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$(Q) $(call DELFILE, $(addsuffix .tmp,$(ARCHSCRIPT)))
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# This is part of the top-level export target
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# Note that there may not be a head object if layout is handled
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# by the linker configuration.
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export_startup: $(STARTUP_OBJS)
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ifneq ($(STARTUP_OBJS),)
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$(Q) if [ -d "$(EXPORT_DIR)/startup" ]; then \
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cp -f $(STARTUP_OBJS) "$(EXPORT_DIR)/startup/."; \
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else \
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echo "$(EXPORT_DIR)/startup does not exist"; \
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exit 1; \
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fi
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endif
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# Dependencies
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makedepfile: $(CSRCS:.c=.ddc) $(ASRCS:.S=.dds) $(HEAD_ASRC:.S=.dds)
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$(call CATFILE, Make.dep, $^)
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$(call DELFILE, $^)
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.depend: Makefile $(SRCS) $(TOPDIR)$(DELIM).config
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ifeq ($(BOARDMAKE),y)
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$(Q) $(MAKE) -C board depend
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endif
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$(Q) $(MAKE) makedepfile DEPPATH="$(patsubst %,--dep-path %,$(subst :, ,$(VPATH)))"
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$(Q) touch $@
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depend: .depend
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context::
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clean:
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ifeq ($(BOARDMAKE),y)
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$(Q) $(MAKE) -C board clean
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endif
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$(call DELFILE, $(addsuffix .tmp,$(ARCHSCRIPT)))
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$(call DELFILE, $(KBIN))
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$(call DELFILE, $(BIN))
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$(call DELFILE, $(HEAD_OBJ))
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$(call CLEAN)
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distclean:: clean
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ifeq ($(BOARDMAKE),y)
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$(Q) $(MAKE) -C board distclean
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endif
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$(call DELFILE, Make.dep)
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$(call DELFILE, .depend)
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-include Make.dep
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