summaryrefslogtreecommitdiff
path: root/usr/initramfs_data.bz2.S
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-03-29 01:34:14 +0300
committerIngo Molnar <mingo@elte.hu>2009-03-29 01:34:14 +0300
commit38a6ed3ed8e108b662f4016a1ebf068dcf4c1ef4 (patch)
treea83d5e4e86edf6cb2de22db6f2ff2274753a2bab /usr/initramfs_data.bz2.S
parentf2d28a2ebcb525a6ec7e2152106ddb385ef52b73 (diff)
parent7c730ccdc1188b97f5c8cb690906242c7ed75c22 (diff)
downloadlinux-38a6ed3ed8e108b662f4016a1ebf068dcf4c1ef4.tar.xz
Merge branch 'linus' into core/printk
Diffstat (limited to 'usr/initramfs_data.bz2.S')
-rw-r--r--usr/initramfs_data.bz2.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/usr/initramfs_data.bz2.S b/usr/initramfs_data.bz2.S
new file mode 100644
index 000000000000..bc54d090365c
--- /dev/null
+++ b/usr/initramfs_data.bz2.S
@@ -0,0 +1,29 @@
+/*
+ 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"