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authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>2010-09-17 15:24:09 -0700
committerMichal Marek <mmarek@suse.cz>2010-09-29 16:28:59 +0200
commit6ae64e428f74e7bacab898ef9665dda719ea6fde (patch)
treefdd61e1757e43feddc91eeb32f5ac22e237b5012 /usr
parentef894870c6c38580e540c29cfb22a827d54a950a (diff)
downloadlinux-2.6.38-lt-ux500-6ae64e428f74e7bacab898ef9665dda719ea6fde.tar.gz
initramfs: generalize initramfs_data.xxx.S variants
Remove initramfs_data.{lzo,lzma,gz,bz2}.S variants and use a common implementation in initramfs_data.S. The common implementation expects the file name of the initramfs to be defined in INITRAMFS_IMAGE. Change the Makefile to set the INITRAMFS_IMAGE define symbol according to the selected compression method. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: Michal Marek <mmarek@suse.cz> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'usr')
-rw-r--r--usr/Makefile6
-rw-r--r--usr/initramfs_data.S5
-rw-r--r--usr/initramfs_data.bz2.S29
-rw-r--r--usr/initramfs_data.gz.S29
-rw-r--r--usr/initramfs_data.lzma.S29
-rw-r--r--usr/initramfs_data.lzo.S29
6 files changed, 7 insertions, 120 deletions
diff --git a/usr/Makefile b/usr/Makefile
index 6b4b6da0b67..6faa444b708 100644
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -18,13 +18,15 @@ suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZMA) = .lzma
# Lzo
suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZO) = .lzo
+AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/initramfs_data.cpio$(suffix_y)"
+
# Generate builtin.o based on initramfs_data.o
-obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data$(suffix_y).o
+obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
# initramfs_data.o contains the compressed initramfs_data.cpio image.
# The image is included using .incbin, a dependency which is not
# tracked automatically.
-$(obj)/initramfs_data$(suffix_y).o: $(obj)/initramfs_data.cpio$(suffix_y) FORCE
+$(obj)/initramfs_data.o: $(obj)/initramfs_data.cpio$(suffix_y) FORCE
#####
# Generate the initramfs cpio archive
diff --git a/usr/initramfs_data.S b/usr/initramfs_data.S
index 7c6973d8d82..49a545fea12 100644
--- a/usr/initramfs_data.S
+++ b/usr/initramfs_data.S
@@ -25,6 +25,7 @@ SECTIONS
in the ELF header, as required by certain architectures.
*/
-.section .init.ramfs,"a"
-.incbin "usr/initramfs_data.cpio"
+#include <linux/stringify.h>
+.section .init.ramfs,"a"
+.incbin __stringify(INITRAMFS_IMAGE)
diff --git a/usr/initramfs_data.bz2.S b/usr/initramfs_data.bz2.S
deleted file mode 100644
index bc54d090365..00000000000
--- a/usr/initramfs_data.bz2.S
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- initramfs_data includes the compressed binary that is the
- filesystem used for early user space.
- Note: Older versions of "as" (prior to binutils 2.11.90.0.23
- released on 2001-07-14) dit not support .incbin.
- If you are forced to use older binutils than that then the
- following trick can be applied to create the resulting binary:
-
-
- ld -m elf_i386 --format binary --oformat elf32-i386 -r \
- -T initramfs_data.scr initramfs_data.cpio.gz -o initramfs_data.o
- ld -m elf_i386 -r -o built-in.o initramfs_data.o
-
- initramfs_data.scr looks like this:
-SECTIONS
-{
- .init.ramfs : { *(.data) }
-}
-
- The above example is for i386 - the parameters vary from architectures.
- Eventually look up LDFLAGS_BLOB in an older version of the
- arch/$(ARCH)/Makefile to see the flags used before .incbin was introduced.
-
- Using .incbin has the advantage over ld that the correct flags are set
- in the ELF header, as required by certain architectures.
-*/
-
-.section .init.ramfs,"a"
-.incbin "usr/initramfs_data.cpio.bz2"
diff --git a/usr/initramfs_data.gz.S b/usr/initramfs_data.gz.S
deleted file mode 100644
index 890c8dd1d6b..00000000000
--- a/usr/initramfs_data.gz.S
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- initramfs_data includes the compressed binary that is the
- filesystem used for early user space.
- Note: Older versions of "as" (prior to binutils 2.11.90.0.23
- released on 2001-07-14) dit not support .incbin.
- If you are forced to use older binutils than that then the
- following trick can be applied to create the resulting binary:
-
-
- ld -m elf_i386 --format binary --oformat elf32-i386 -r \
- -T initramfs_data.scr initramfs_data.cpio.gz -o initramfs_data.o
- ld -m elf_i386 -r -o built-in.o initramfs_data.o
-
- initramfs_data.scr looks like this:
-SECTIONS
-{
- .init.ramfs : { *(.data) }
-}
-
- The above example is for i386 - the parameters vary from architectures.
- Eventually look up LDFLAGS_BLOB in an older version of the
- arch/$(ARCH)/Makefile to see the flags used before .incbin was introduced.
-
- Using .incbin has the advantage over ld that the correct flags are set
- in the ELF header, as required by certain architectures.
-*/
-
-.section .init.ramfs,"a"
-.incbin "usr/initramfs_data.cpio.gz"
diff --git a/usr/initramfs_data.lzma.S b/usr/initramfs_data.lzma.S
deleted file mode 100644
index e11469e4856..00000000000
--- a/usr/initramfs_data.lzma.S
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- initramfs_data includes the compressed binary that is the
- filesystem used for early user space.
- Note: Older versions of "as" (prior to binutils 2.11.90.0.23
- released on 2001-07-14) dit not support .incbin.
- If you are forced to use older binutils than that then the
- following trick can be applied to create the resulting binary:
-
-
- ld -m elf_i386 --format binary --oformat elf32-i386 -r \
- -T initramfs_data.scr initramfs_data.cpio.gz -o initramfs_data.o
- ld -m elf_i386 -r -o built-in.o initramfs_data.o
-
- initramfs_data.scr looks like this:
-SECTIONS
-{
- .init.ramfs : { *(.data) }
-}
-
- The above example is for i386 - the parameters vary from architectures.
- Eventually look up LDFLAGS_BLOB in an older version of the
- arch/$(ARCH)/Makefile to see the flags used before .incbin was introduced.
-
- Using .incbin has the advantage over ld that the correct flags are set
- in the ELF header, as required by certain architectures.
-*/
-
-.section .init.ramfs,"a"
-.incbin "usr/initramfs_data.cpio.lzma"
diff --git a/usr/initramfs_data.lzo.S b/usr/initramfs_data.lzo.S
deleted file mode 100644
index 59211905da8..00000000000
--- a/usr/initramfs_data.lzo.S
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- initramfs_data includes the compressed binary that is the
- filesystem used for early user space.
- Note: Older versions of "as" (prior to binutils 2.11.90.0.23
- released on 2001-07-14) dit not support .incbin.
- If you are forced to use older binutils than that then the
- following trick can be applied to create the resulting binary:
-
-
- ld -m elf_i386 --format binary --oformat elf32-i386 -r \
- -T initramfs_data.scr initramfs_data.cpio.gz -o initramfs_data.o
- ld -m elf_i386 -r -o built-in.o initramfs_data.o
-
- initramfs_data.scr looks like this:
-SECTIONS
-{
- .init.ramfs : { *(.data) }
-}
-
- The above example is for i386 - the parameters vary from architectures.
- Eventually look up LDFLAGS_BLOB in an older version of the
- arch/$(ARCH)/Makefile to see the flags used before .incbin was introduced.
-
- Using .incbin has the advantage over ld that the correct flags are set
- in the ELF header, as required by certain architectures.
-*/
-
-.section .init.ramfs,"a"
-.incbin "usr/initramfs_data.cpio.lzo"