Nicholas Piggin b67067f117 kbuild: allow archs to select link dead code/data elimination ... Introduce LD_DEAD_CODE_DATA_ELIMINATION option for architectures to select to build with -ffunction-sections, -fdata-sections, and link with --gc-sections. It requires some work (documented) to ensure all unreferenced entrypoints are live, and requires toolchain and build verification, so it is made a per-arch option for now. On a random powerpc64le build, this yelds a significant size saving, it boots and runs fine, but there is a lot I haven't tested as yet, so these savings may be reduced if there are bugs in the link. text data bss dec filename 11169741 1180744 1923176 14273661 vmlinux 10445269 1004127 1919707 13369103 vmlinux.dce ~700K text, ~170K data, 6% removed from kernel image size. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>		2016-09-09 10:47:00 +02:00
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calibrate.c	kernel: add calibration_delay_done()	2014-06-16 12:47:39 -06:00
do_mounts_initrd.c	init/do_mounts: initrd_load() can be boolean	2016-01-20 17:09:18 -08:00
do_mounts_md.c	init: disable sparse checking of the mount.o source files	2012-05-31 17:49:27 -07:00
do_mounts_rd.c	init, Documentation: Remove ramdisk_blocksize mentions	2015-12-26 05:22:00 -07:00
do_mounts.c	init/do_mounts.c: add create_dev() failure log	2015-06-25 17:00:42 -07:00
do_mounts.h	init/do_mounts: initrd_load() can be boolean	2016-01-20 17:09:18 -08:00
init_task.c	sched/rt: Move rt specific bits into new header file	2013-02-07 20:51:08 +01:00
initramfs.c	kexec: split kexec_load syscall from kexec core code	2015-09-10 13:29:01 -07:00
Kconfig	init/Kconfig: add clarification for out-of-tree modules	2016-08-02 19:35:43 -04:00
main.c	init: allow blacklisting of module_init functions	2016-08-02 19:35:40 -04:00
Makefile	kbuild: allow archs to select link dead code/data elimination	2016-09-09 10:47:00 +02:00
noinitramfs.c	init: mark __user address space on string literals	2010-10-26 16:52:15 -07:00
version.c	copy address of proc_ns_ops into ns_common	2014-12-04 14:34:47 -05:00