Commit
f62fb99941c6 fixed handling of all rodata sections by using a
wildcard combined with calls to ld's builtin functions SORT_BY_ALIGNMENT()
and SORT_BY_NAME(). Unfortunately these functions were only
introduced with biunutils version 2.16, so the modification broke
building with all tool chains using older binutils.
This patch makes it work again. This is done by omitting the use of
these functions for such old tool chains. This will result in
slightly larger target binaries, as the rodata sections are no longer
in optimal order alignment-wise which reauls in unused gaps, but the
effect was found to be insignificant - especially compared to the fact
that you cannot build U-Boot at all in the current state.
As ld seems to have no support for conditionals we run the linker
script through the C preprocessor which can be easily used to remove
the unwanted function calls.
Note that the C preprocessor must be run with the "-ansi" (or a
"-std=") option to make sure all the system-specific predefined
macros outside the reserved namespace are suppressed. Otherise, cpp
might for example substitute "powerpc" to "1", thus corrupting for
example "OUTPUT_ARCH(powerpc)" etc.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-Map u-boot.map -o u-boot
-$(obj)u-boot: depend $(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT)
+$(obj)u-boot: depend $(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds
$(GEN_UBOOT)
ifeq ($(CONFIG_KALLSYMS),y)
- smap=`$(call SYSTEM_MAP,u-boot) | awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
- $(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" -c common/system_map.c -o $(obj)common/system_map.o
+ smap=`$(call SYSTEM_MAP,u-boot) | \
+ awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
+ $(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \
+ -c common/system_map.c -o $(obj)common/system_map.o
$(GEN_UBOOT) $(obj)common/system_map.o
endif
$(LDSCRIPT): depend
$(MAKE) -C $(dir $@) $(notdir $@)
+$(obj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
$(NAND_SPL): $(TIMESTAMP_FILE) $(VERSION_FILE) $(obj)include/autoconf.mk
$(MAKE) -C nand_spl/board/$(BOARDDIR) all
$(obj)board/trab/trab_fkt $(obj)board/voiceblue/eeprom \
$(obj)board/armltd/{integratorap,integratorcp}/u-boot.lds \
$(obj)lib_blackfin/u-boot.lds \
+ $(obj)u-boot.lds \
$(obj)cpu/blackfin/bootrom-asm-offsets.[chs]
@rm -f $(obj)include/bmp_logo.h
- @rm -f $(obj)nand_spl/{u-boot-spl,u-boot-spl.map,System.map}
+ @rm -f $(obj)nand_spl/{u-boot.lds,u-boot-spl,u-boot-spl.map,System.map}
@rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl-2k.bin,ipl-4k.bin,ipl.map}
+ @rm -f $(obj)onenand_ipl/u-boot.lds
@rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
@find $(OBJTREE) -type f \
\( -name 'core' -o -name '*.bak' -o -name '*~' \
$(LIB): $(OBJS) $(SOBJS)
$(AR) $(ARFLAGS) $@ $^
-$(obj)eeprom.srec: $(obj)eeprom.o $(obj)eeprom_start.o
- cd $(lnk) && $(LD) -T $(LDSCRIPT) -g -Ttext $(LOAD_ADDR) \
+$(obj)eeprom.srec: $(obj)eeprom.o $(obj)eeprom_start.o $(obj)u-boot.lds
+ cd $(lnk) && $(LD) -T $(obj)u-boot.lds -g -Ttext $(LOAD_ADDR) \
-o $(<:.o=) -e eeprom eeprom.o eeprom_start.o \
-L$(obj)../../examples/standalone -lstubs \
-L$(obj)../../lib_generic -lgeneric \
$(obj)crc32.o: $(SRCTREE)/lib_generic/crc32.c
$(HOSTCC) $(HOSTCFLAGS) -DUSE_HOSTCC -o $@ -c $<
+$(obj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
clean:
rm -f $(SOBJS) $(OBJS) $(obj)eeprom $(obj)eeprom.srec \
$(obj)eeprom.bin $(obj)crcek $(obj)crcek.srec \
- $(obj)crcek.bin
+ $(obj)crcek.bin $(obj)u-boot.lds
distclean: clean
rm -f $(LIB) core *.bak $(obj).depend
$(LIB): $(OBJS) $(SOBJS)
$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
-$(obj)eeprom.srec: $(obj)eeprom.o $(obj)eeprom_start.o
- cd $(lnk) && $(LD) -T $(LDSCRIPT) -g -Ttext $(LOAD_ADDR) \
+$(obj)eeprom.srec: $(obj)eeprom.o $(obj)eeprom_start.o $(obj)u-boot.lds
+ cd $(lnk) && $(LD) -T $(obj)u-boot.lds -g -Ttext $(LOAD_ADDR) \
-o $(<:.o=) -e eeprom eeprom.o eeprom_start.o \
-L$(obj)../../examples/standalone -lstubs \
-L$(obj)../../lib_generic -lgeneric \
$(obj)eeprom.bin: $(obj)eeprom.srec
$(OBJCOPY) -I srec -O binary $< $@ 2>/dev/null
+$(obj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
clean:
rm -f $(SOBJS) $(OBJS) $(obj)eeprom \
$(obj)eeprom.srec $(obj)eeprom.bin \
- $(obj)eeprom.o $(obj)eeprom_start.o
-
+ $(obj)eeprom.o $(obj)eeprom_start.o \
+ $(obj)u-boot.lds
distclean: clean
rm -f $(LIB) core *.bak $(obj).depend
AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
-LDFLAGS += -Bstatic -T $(LDSCRIPT) $(PLATFORM_LDFLAGS)
+LDFLAGS += -Bstatic -T $(obj)u-boot.lds $(PLATFORM_LDFLAGS)
ifneq ($(TEXT_BASE),)
LDFLAGS += -Ttext $(TEXT_BASE)
endif
+# Special flags for CPP when processing the linker script
+# Linker versions prior to 2.16 don't understand the builting
+# functions SORT_BY_ALIGNMENT() and SORT_BY_NAME(), so disable these
+ifeq ($(shell $(LD) -v | \
+ sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\) .*/[ \1 -lt 2 ] || [ \2 -lt 16 ] \&\& echo old_ld/p' | \
+ sh),old_ld)
+LDPPFLAGS += -D'SORT_BY_ALIGNMENT(x)=x' -D'SORT_BY_NAME(x)=x'
+endif
+
+
# Location of a usable BFD library, where we define "usable" as
# "built for ${HOST}, supports ${TARGET}". Sensible values are
# - When cross-compiling: the root of the cross-environment
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
sort > $(nandobj)System.map
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
# from cpu directory
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
# from cpu directory
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
# from cpu directory
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
# from cpu directory
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
# from cpu directory
include $(TOPDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
$(obj)start.S:
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $@
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
#########################################################################
$(obj)%.o: $(SRCTREE)/cpu/arm1136/%.S
include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
# from cpu directory
include $(TOPDIR)/config.mk
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_NAND_SPL
CFLAGS += -DCONFIG_NAND_SPL
$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(nandobj)u-boot-spl: $(OBJS)
+$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links for common files
$(obj)start.S:
include $(TOPDIR)/onenand_ipl/board/$(BOARDDIR)/config.mk
LDSCRIPT= $(TOPDIR)/onenand_ipl/board/$(BOARDDIR)/u-boot.onenand.lds
-LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS = -Bstatic -T $(onenandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
AFLAGS += -DCONFIG_PRELOADER -DCONFIG_ONENAND_IPL
CFLAGS += -DCONFIG_PRELOADER -DCONFIG_ONENAND_IPL
OBJCFLAGS += --gap-fill=0x00
$(onenandobj)onenand-ipl.bin: $(onenandobj)onenand-ipl
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-$(onenandobj)onenand-ipl: $(OBJS)
+$(onenandobj)onenand-ipl: $(OBJS) $(onenandobj)u-boot.lds
cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \
-Map $@.map -o $@
+$(onenandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
# create symbolic links from common files
# from cpu directory