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
Cover-letter: Linker-generated arrays (take 2)
This is a second stab at the linker-generated array. Basically, this concept is a generic abstraction of how u_boot_cmd works today. The patch 2/4 contains a huge pile of documentation which should clarify most of the questions.
I don't see size growth, I see size fluctiation in the order of tens of bytes with these patches applied. Subsequent patch added to this series removes the __u_boot_cmd section completely. --- .gitignore | 1 + Makefile | 19 ++++--- config.mk | 2 + helper.mk | 64 ++++++++++++++++++++++++ nand_spl/board/freescale/mpc8536ds/Makefile | 9 +++- nand_spl/board/freescale/mpc8569mds/Makefile | 9 +++- nand_spl/board/freescale/mpc8572ds/Makefile | 9 +++- nand_spl/board/freescale/mx31pdk/Makefile | 9 +++- nand_spl/board/freescale/p1010rdb/Makefile | 9 +++- nand_spl/board/freescale/p1023rds/Makefile | 9 +++- nand_spl/board/freescale/p1_p2_rdb/Makefile | 9 +++- nand_spl/board/freescale/p1_p2_rdb_pc/Makefile | 9 +++- nand_spl/board/karo/tx25/Makefile | 9 +++- spl/.gitignore | 1 + spl/Makefile | 8 ++- 15 files changed, 150 insertions(+), 26 deletions(-) create mode 100644 helper.mk
V2: - Rebase on top of testing/dm-kerneldoc - Fix INCLUDE u-boot.lds in linker scripts. It didn't work with older LD, use #include instead and make use of CPP. - Fix placement of u-boot.lds for NAND SPL V3: - Rebase on top of u-boot/next - Put u-boot.lst into include/ , so the CPP finds it easily.
diff --git a/.gitignore b/.gitignore index d91e91b..1ac43f2 100644 --- a/.gitignore +++ b/.gitignore @@ -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 diff --git a/Makefile b/Makefile index ab34fa7..66c8c77 100644 --- a/Makefile +++ b/Makefile @@ -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 @@ -807,7 +814,7 @@ clean: @rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image} \ $(obj)board/matrix_vision/*/bootscript.img \ $(obj)board/voiceblue/eeprom \ - $(obj)u-boot.lds \ + $(obj)u-boot.lds,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 +848,8 @@ 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},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,lst},u-boot-spl.map} @rm -f $(obj)MLO @rm -f $(obj)tools/xway-swap-bytes @rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c diff --git a/config.mk b/config.mk index bb5c69a..b7cd481 100644 --- a/config.mk +++ b/config.mk @@ -23,6 +23,8 @@
#########################################################################
+include $(TOPDIR)/helper.mk + ifeq ($(CURDIR),$(SRCTREE)) dir := else diff --git a/helper.mk b/helper.mk new file mode 100644 index 0000000..79a1da0 --- /dev/null +++ b/helper.mk @@ -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 diff --git a/nand_spl/board/freescale/mpc8536ds/Makefile b/nand_spl/board/freescale/mpc8536ds/Makefile index 43da3df..e5388d8 100644 --- a/nand_spl/board/freescale/mpc8536ds/Makefile +++ b/nand_spl/board/freescale/mpc8536ds/Makefile @@ -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
diff --git a/nand_spl/board/freescale/mpc8569mds/Makefile b/nand_spl/board/freescale/mpc8569mds/Makefile index 43da3df..e5388d8 100644 --- a/nand_spl/board/freescale/mpc8569mds/Makefile +++ b/nand_spl/board/freescale/mpc8569mds/Makefile @@ -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
diff --git a/nand_spl/board/freescale/mpc8572ds/Makefile b/nand_spl/board/freescale/mpc8572ds/Makefile index 43da3df..e5388d8 100644 --- a/nand_spl/board/freescale/mpc8572ds/Makefile +++ b/nand_spl/board/freescale/mpc8572ds/Makefile @@ -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
diff --git a/nand_spl/board/freescale/mx31pdk/Makefile b/nand_spl/board/freescale/mx31pdk/Makefile index 87784d2..43e72c4 100644 --- a/nand_spl/board/freescale/mx31pdk/Makefile +++ b/nand_spl/board/freescale/mx31pdk/Makefile @@ -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 - <$< >$@
#########################################################################
diff --git a/nand_spl/board/freescale/p1010rdb/Makefile b/nand_spl/board/freescale/p1010rdb/Makefile index cdbd492..f270faa 100644 --- a/nand_spl/board/freescale/p1010rdb/Makefile +++ b/nand_spl/board/freescale/p1010rdb/Makefile @@ -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
diff --git a/nand_spl/board/freescale/p1023rds/Makefile b/nand_spl/board/freescale/p1023rds/Makefile index da43521..b288284 100644 --- a/nand_spl/board/freescale/p1023rds/Makefile +++ b/nand_spl/board/freescale/p1023rds/Makefile @@ -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
diff --git a/nand_spl/board/freescale/p1_p2_rdb/Makefile b/nand_spl/board/freescale/p1_p2_rdb/Makefile index 43da3df..e5388d8 100644 --- a/nand_spl/board/freescale/p1_p2_rdb/Makefile +++ b/nand_spl/board/freescale/p1_p2_rdb/Makefile @@ -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
diff --git a/nand_spl/board/freescale/p1_p2_rdb_pc/Makefile b/nand_spl/board/freescale/p1_p2_rdb_pc/Makefile index 46cf709..7146d16 100644 --- a/nand_spl/board/freescale/p1_p2_rdb_pc/Makefile +++ b/nand_spl/board/freescale/p1_p2_rdb_pc/Makefile @@ -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
diff --git a/nand_spl/board/karo/tx25/Makefile b/nand_spl/board/karo/tx25/Makefile index 0336346..becf7fa 100644 --- a/nand_spl/board/karo/tx25/Makefile +++ b/nand_spl/board/karo/tx25/Makefile @@ -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 - <$< >$@
#########################################################################
diff --git a/spl/.gitignore b/spl/.gitignore index 7c88147..8cf487e 100644 --- a/spl/.gitignore +++ b/spl/.gitignore @@ -2,3 +2,4 @@ u-boot-spl u-boot-spl.bin u-boot-spl.lds u-boot-spl.map +u-boot.lst diff --git a/spl/Makefile b/spl/Makefile index 92267d6..20a943c 100644 --- a/spl/Makefile +++ b/spl/Makefile @@ -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