diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-03-03 20:29:19 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-03-03 20:29:19 -0500 |
commit | 91d75e209bd59695f0708d66964d928d45b3b2f3 (patch) | |
tree | 32cab1359d951e4193bebb181a0f0319824a2b95 /usr/initramfs_data.gz.S | |
parent | 9976b39b5031bbf76f715893cf080b6a17683881 (diff) | |
parent | 8b0e5860cb099d7958d13b00ffbc35ad02735700 (diff) |
Merge branch 'x86/core' into core/percpu
Diffstat (limited to 'usr/initramfs_data.gz.S')
-rw-r--r-- | usr/initramfs_data.gz.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/usr/initramfs_data.gz.S b/usr/initramfs_data.gz.S new file mode 100644 index 000000000000..890c8dd1d6bd --- /dev/null +++ b/usr/initramfs_data.gz.S | |||
@@ -0,0 +1,29 @@ | |||
1 | /* | ||
2 | initramfs_data includes the compressed binary that is the | ||
3 | filesystem used for early user space. | ||
4 | Note: Older versions of "as" (prior to binutils 2.11.90.0.23 | ||
5 | released on 2001-07-14) dit not support .incbin. | ||
6 | If you are forced to use older binutils than that then the | ||
7 | following trick can be applied to create the resulting binary: | ||
8 | |||
9 | |||
10 | ld -m elf_i386 --format binary --oformat elf32-i386 -r \ | ||
11 | -T initramfs_data.scr initramfs_data.cpio.gz -o initramfs_data.o | ||
12 | ld -m elf_i386 -r -o built-in.o initramfs_data.o | ||
13 | |||
14 | initramfs_data.scr looks like this: | ||
15 | SECTIONS | ||
16 | { | ||
17 | .init.ramfs : { *(.data) } | ||
18 | } | ||
19 | |||
20 | The above example is for i386 - the parameters vary from architectures. | ||
21 | Eventually look up LDFLAGS_BLOB in an older version of the | ||
22 | arch/$(ARCH)/Makefile to see the flags used before .incbin was introduced. | ||
23 | |||
24 | Using .incbin has the advantage over ld that the correct flags are set | ||
25 | in the ELF header, as required by certain architectures. | ||
26 | */ | ||
27 | |||
28 | .section .init.ramfs,"a" | ||
29 | .incbin "usr/initramfs_data.cpio.gz" | ||