f49821ee32
Incremental linking is gone, so rename built-in.o to built-in.a, which is the usual extension for archive files. This patch does two things, first is a simple search/replace: git grep -l 'built-in\.o' | xargs sed -i 's/built-in\.o/built-in\.a/g' The second is to invert nesting of nested text manipulations to avoid filtering built-in.a out from libs-y2: -libs-y2 := $(filter-out %.a, $(patsubst %/, %/built-in.a, $(libs-y))) +libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y))) Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
40 lines
1.3 KiB
ArmAsm
40 lines
1.3 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
initramfs_data includes the compressed binary that is the
|
|
filesystem used for early user space.
|
|
Note: Older versions of "as" (prior to binutils 2.11.90.0.23
|
|
released on 2001-07-14) dit not support .incbin.
|
|
If you are forced to use older binutils than that then the
|
|
following trick can be applied to create the resulting binary:
|
|
|
|
|
|
ld -m elf_i386 --format binary --oformat elf32-i386 -r \
|
|
-T initramfs_data.scr initramfs_data.cpio.gz -o initramfs_data.o
|
|
ld -m elf_i386 -r -o built-in.a initramfs_data.o
|
|
|
|
For including the .init.ramfs sections, see include/asm-generic/vmlinux.lds.
|
|
|
|
The above example is for i386 - the parameters vary from architectures.
|
|
Eventually look up LDFLAGS_BLOB in an older version of the
|
|
arch/$(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.
|
|
*/
|
|
|
|
#include <linux/stringify.h>
|
|
#include <asm-generic/vmlinux.lds.h>
|
|
|
|
.section .init.ramfs,"a"
|
|
__irf_start:
|
|
.incbin __stringify(INITRAMFS_IMAGE)
|
|
__irf_end:
|
|
.section .init.ramfs.info,"a"
|
|
.globl VMLINUX_SYMBOL(__initramfs_size)
|
|
VMLINUX_SYMBOL(__initramfs_size):
|
|
#ifdef CONFIG_64BIT
|
|
.quad __irf_end - __irf_start
|
|
#else
|
|
.long __irf_end - __irf_start
|
|
#endif
|