leandrof/u-boot
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common: Add symbol handling for generic lists into Makefile

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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>
This commit is contained in:
Marek Vasut 2012-10-19 05:00:10 +00:00 committed by Tom Rini
parent 047cea3655
commit 97b24d3d51
15 changed files with 152 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
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@ -38,6 +38,7 @@
/u-boot.sha1
/u-boot.dis
/u-boot.lds
/u-boot.lst
/u-boot.ubl
/u-boot.ais
/u-boot.dtb

20
Makefile
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@ -535,7 +535,10 @@ else
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 @@ $(SUBDIR_EXAMPLES): $(obj)u-boot
$(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 @@ clean:
$(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 @@ clobber: tidy
@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

2
config.mk
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@ -23,6 +23,8 @@
#########################################################################
include $(TOPDIR)/helper.mk
ifeq ($(CURDIR),$(SRCTREE))
dir :=
else

64
helper.mk Normal file
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@ -0,0 +1,64 @@
#
# Copyright (C) 2012 Marek Vasut <marex@denx.de>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
#########################################################################
##
# make_u_boot_list - Generate contents of u_boot_list section
# 1: The name of the resulting file (usually u-boot.lst)
# 2: Files to analyze for possible u_boot_list entries
#
# This function generates the contents of the u_boot_list section,
# including all the border symbols for it's subsections. The operation
# of this function is as follows, numbering goes per lines:
#
# 1) Dump the ELF header sections from all files supplied via $(2)
# 2) Filter out all other stuff that does not belong into .u_boot_list
# section.
# 3) Fix up the lines so that the resulting output is is in format
# ".u_boot_list.*".
# 4) Remove the last .something$, since that only contains the name
# of the variable to be put into a subsection. This name is irelevant
# for generation of border symbols, thus of no interest, remove it.
# 5) Take each line and for every dot "." in that line, print the whole
# line until that dot "." . This is important so that we have all
# parent border symbols generated as well.
# 6) Load every line and firstly append "\a" at the end and print the
# line. Next, append "@" at the end and print the line. Finally,
# append "~" at the end of line. This will make sense in conjunction
# with 6) and 7).
# 7) Sort the lines. It is imperative to use LC_COLLATE=C here because
# with this, the "\a" symbol is first and "~" symbol is last. Any
# other symbols fall inbetween. Symbols like "@", which marks the
# end of current line (representing current section) and ".", which
# means the line continues and thus represents subsection.
# 8) With such ordering, all lines ending with "\a" will float at the
# begining of all lines with the same prefix. Thus it is easy to
# replace "\a" with __start and make it the __start border symbol.
# Very similarly for "~", which will be always at the bottom and so
# can be replaced by "__end" and made into the __end border symbol.
# Finally, every line ending with "@" symbol will be transformed
# into " *(SORT(${line}*)); " format, which in the linker parlance
# will allow it to trap all symbols relevant to the subsection.
#
define make_u_boot_list
$(1): $(2)
$(OBJDUMP) -h $(2) | \
sed -n -e '/.*\.u_boot_list[^ ]\+/ ! {d;n}' \
-e 's/.*\(\.u_boot_list[^ ]\+\).*$$$$/\1/' \
-e 's/\.[^\.]\+$$$$//' \
-e ':s /^.\+$$$$/ { p;s/^\(.*\)\.[^\.]*$$$$/\1/;b s }' | \
sed -n -e 'h;s/$$$$/\a/p;g;s/$$$$/@/p;g;s/$$$$/~/p;' | \
LC_COLLATE=C sort -u | \
sed -n -e '/\a$$$$/ { s/\./_/g;s/\a$$$$/__start = .;/p; }'\
-e '/~$$$$/ { s/\./_/g;s/~$$$$/__end = .;/p; }'\
-e '/@$$$$/ { s/\(.*\)@$$$$/*(SORT(\1.*));/p }' > $(1)
endef

9
nand_spl/board/freescale/mpc8536ds/Makefile
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@ -32,6 +32,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
$(LDFLAGS) $(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -61,8 +62,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/freescale/mpc8569mds/Makefile
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@ -32,6 +32,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
$(LDFLAGS) $(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -61,8 +62,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/freescale/mpc8572ds/Makefile
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@ -32,6 +32,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
$(LDFLAGS) $(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -61,8 +62,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/freescale/mx31pdk/Makefile
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@ -6,6 +6,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
$(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_SPL_BUILD -DCONFIG_NAND_SPL
@ -36,8 +37,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
-Map $(nandobj)u-boot-spl.map \
-o $@
$(nandobj)u-boot.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
#########################################################################

9
nand_spl/board/freescale/p1010rdb/Makefile
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@ -32,6 +32,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) $(LDFLAGS) \
$(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -62,8 +63,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/freescale/p1023rds/Makefile
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@ -27,6 +27,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
$(LDFLAGS) $(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -57,8 +58,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/freescale/p1_p2_rdb/Makefile
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@ -32,6 +32,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
$(LDFLAGS) $(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -61,8 +62,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/freescale/p1_p2_rdb_pc/Makefile
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@ -32,6 +32,7 @@ include $(TOPDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
$(LDFLAGS) $(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_NAND_SPL
@ -62,8 +63,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot-nand_spl.lds
-Map $(nandobj)u-boot-spl.map \
-o $(nandobj)u-boot-spl
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
# create symbolic links for common files

9
nand_spl/board/karo/tx25/Makefile
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@ -27,6 +27,7 @@ include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
nandobj := $(OBJTREE)/nand_spl/
LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
$(LDFLAGS_FINAL)
AFLAGS += -DCONFIG_SPL_BUILD -DCONFIG_NAND_SPL
@ -57,8 +58,12 @@ $(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
-Map $(nandobj)u-boot-spl.map \
-o $@
$(nandobj)u-boot.lds: $(LDSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
# The following line expands into whole rule which generates $(LSTSCRIPT),
# 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, $(LSTSCRIPT), $(OBJS)))
$(nandobj)u-boot.lds: $(LDSCRIPT) $(LSTSCRIPT)
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj) -ansi -D__ASSEMBLY__ -P - <$< >$@
#########################################################################

1
spl/.gitignore vendored
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@ -2,3 +2,4 @@ u-boot-spl
u-boot-spl.bin
u-boot-spl.lds
u-boot-spl.map
u-boot.lst

8
spl/Makefile
View File

@ -154,8 +154,12 @@ $(START): depend
$(LIBS): depend
$(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
$(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)u-boot.lst, $(LIBS)))
$(obj)u-boot-spl.lds: $(LDSCRIPT) $(obj)u-boot.lst depend
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
depend: $(obj).depend
.PHONY: depend