Commit 97b24d3d authored by Marek Vasut's avatar Marek Vasut Committed by Tom Rini

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: default avatarMarek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Acked-by: default avatarJoe Hershberger <joe.hershberger@ni.com>
Tested-by: default avatarJoe Hershberger <joe.hershberger@ni.com>
parent 047cea36
......@@ -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
......
......@@ -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
......
......@@ -23,6 +23,8 @@
#########################################################################
include $(TOPDIR)/helper.mk
ifeq ($(CURDIR),$(SRCTREE))
dir :=
else
......
#
# 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
......@@ -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
......
......@@ -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
......
......@@ -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
......
......@@ -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 - <$< >$@
#########################################################################
......
......@@ -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
......
......@@ -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
......
......@@ -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
......
......@@ -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
......
......@@ -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 - <$< >$@
#########################################################################
......
......@@ -2,3 +2,4 @@ u-boot-spl
u-boot-spl.bin
u-boot-spl.lds
u-boot-spl.map
u-boot.lst
......@@ -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
......
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