common: Add symbol handling for generic lists into Makefile
This patch adds essential components for generation of the contents of
the linker section that is used by the linker-generated array. All of
the contents is held in a separate file, u-boot.lst, which is generated
at runtime just before U-Boot is linked.
The purpose of this code is to especially generate the appropriate
boundary symbols around each subsection in the section carrying the
linker-generated arrays. Obviously, the interim linker code for actual
placement of the variables into the section is generated too. The
generated file, u-boot.lst, is included into u-boot.lds via the linker
INCLUDE directive in u-boot.lds .
Adjustments are made in the Makefile and spl/Makefile so that the
u-boot.lds and u-boot-spl.lds depend on their respective .lst files.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Tested-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/Makefile b/Makefile
index 08eecbb..c4afc9f 100644
--- a/Makefile
+++ b/Makefile
@@ -535,7 +535,10 @@
GEN_UBOOT = \
UNDEF_SYM=`$(OBJDUMP) -x $(LIBBOARD) $(LIBS) | \
sed -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
- cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__OBJS) \
+ UNDEF_LST=`$(OBJDUMP) -x $(LIBBOARD) $(LIBS) | \
+ sed -n -e 's/.*\($(SYM_PREFIX)_u_boot_list_.*\)/-u\1/p'|sort|uniq`;\
+ cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
+ $$UNDEF_SYM $$UNDEF_LST $(__OBJS) \
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-Map u-boot.map -o u-boot
endif
@@ -568,8 +571,12 @@
$(LDSCRIPT): depend
$(MAKE) -C $(dir $@) $(notdir $@)
-$(obj)u-boot.lds: $(LDSCRIPT)
- $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+# The following line expands into whole rule which generates u-boot.lst,
+# the file containing u-boots LG-array linker section. This is included into
+# $(LDSCRIPT). The function make_u_boot_list is defined in helper.mk file.
+$(eval $(call make_u_boot_list, $(obj)include/u-boot.lst, $(LIBBOARD) $(LIBS)))
+$(obj)u-boot.lds: $(LDSCRIPT) $(obj)include/u-boot.lst
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
nand_spl: $(TIMESTAMP_FILE) $(VERSION_FILE) depend
$(MAKE) -C nand_spl/board/$(BOARDDIR) all
@@ -808,6 +815,7 @@
$(obj)board/matrix_vision/*/bootscript.img \
$(obj)board/voiceblue/eeprom \
$(obj)u-boot.lds \
+ $(obj)include/u-boot.lst \
$(obj)arch/blackfin/cpu/bootrom-asm-offsets.[chs] \
$(obj)arch/blackfin/cpu/init.{lds,elf}
@rm -f $(obj)include/bmp_logo.h
@@ -841,8 +849,10 @@
@rm -f $(obj)u-boot.dtb
@rm -f $(obj)u-boot.sb
@rm -f $(obj)u-boot.spr
- @rm -f $(obj)nand_spl/{u-boot.lds,u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map,System.map}
- @rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.lds,u-boot-spl.map}
+ @rm -f $(obj)nand_spl/{u-boot.{lds,lst},System.map}
+ @rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map}
+ @rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map}
+ @rm -f $(obj)spl/{u-boot-spl.lds,u-boot.lst}
@rm -f $(obj)MLO
@rm -f $(obj)tools/xway-swap-bytes
@rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c