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ARM: simplify generation of compressed vmlinux.lds file
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As we are now using the C preprocessor, we do not need to use sed to
edit constants in this file, and then pass the resulting file through
the C preprocessor.  Instead, rely solely on the C preprocessor to
rewrite TEXT_START and BSS_ADDR.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King committed Jul 1, 2014
1 parent 33656d5 commit c79bf92
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Showing 3 changed files with 2 additions and 9 deletions.
1 change: 0 additions & 1 deletion arch/arm/boot/compressed/.gitignore
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,6 @@ piggy.xzkern
piggy.lz4
vmlinux
vmlinux.lds
vmlinux.lds.S

# borrowed libfdt files
fdt.c
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7 changes: 2 additions & 5 deletions arch/arm/boot/compressed/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -81,7 +81,7 @@ ZTEXTADDR := 0
ZBSSADDR := ALIGN(8)
endif

SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"

suffix_$(CONFIG_KERNEL_GZIP) = gzip
suffix_$(CONFIG_KERNEL_LZO) = lzo
Expand Down Expand Up @@ -114,7 +114,7 @@ targets := vmlinux vmlinux.lds \
# Make sure files are removed during clean
extra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \
lib1funcs.S ashldi3.S bswapsdi2.S $(libfdt) $(libfdt_hdrs) \
hyp-stub.S vmlinux.lds.S
hyp-stub.S

ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
Expand Down Expand Up @@ -199,8 +199,5 @@ CFLAGS_font.o := -Dstatic=
$(obj)/font.c: $(FONTC)
$(call cmd,shipped)

$(obj)/vmlinux.lds.S: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
@sed "$(SEDFLAGS)" < $< > $@

$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
$(call cmd,shipped)
Original file line number Diff line number Diff line change
@@ -1,6 +1,4 @@
/*
* linux/arch/arm/boot/compressed/vmlinux.lds.in
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
Expand Down Expand Up @@ -87,4 +85,3 @@ SECTIONS
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}

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