Now CONFIG_TRIM_UNUSED_KSYMS is revived, but Linus is still unhappy
about the build speed.
I re-implemented this feature, and the build time cost is now
almost unnoticeable level.
(no changes since v1)
Masahiro Yamada (4):
export.h: make __ksymtab_strings per-symbol section
kbuild: separate out vmlinux.lds generation
kbuild: re-implement CONFIG_TRIM_UNUSED_KSYMS to make it work in
one-pass
kbuild: remove guarding from TRIM_UNUSED_KSYMS
Makefile | 34 ++++-----
arch/alpha/kernel/Makefile | 3 +-
arch/arc/kernel/Makefile | 3 +-
arch/arm/kernel/Makefile | 3 +-
arch/arm64/kernel/Makefile | 3 +-
arch/arm64/kvm/hyp/nvhe/hyp.lds.S | 1 +
arch/csky/kernel/Makefile | 3 +-
arch/h8300/kernel/Makefile | 2 +-
arch/hexagon/kernel/Makefile | 3 +-
arch/ia64/kernel/Makefile | 3 +-
arch/m68k/kernel/Makefile | 2 +-
arch/microblaze/kernel/Makefile | 3 +-
arch/mips/kernel/Makefile | 3 +-
arch/nds32/kernel/Makefile | 3 +-
arch/nios2/kernel/Makefile | 2 +-
arch/openrisc/kernel/Makefile | 3 +-
arch/parisc/kernel/Makefile | 3 +-
arch/powerpc/kernel/Makefile | 2 +-
arch/powerpc/kernel/vdso32/vdso32.lds.S | 1 +
arch/powerpc/kernel/vdso64/vdso64.lds.S | 1 +
arch/riscv/kernel/Makefile | 2 +-
arch/s390/kernel/Makefile | 3 +-
arch/s390/purgatory/purgatory.lds.S | 1 +
arch/sh/kernel/Makefile | 3 +-
arch/sparc/kernel/Makefile | 2 +-
arch/um/kernel/Makefile | 2 +-
arch/x86/kernel/Makefile | 2 +-
arch/xtensa/kernel/Makefile | 3 +-
include/asm-generic/export.h | 25 +------
include/asm-generic/vmlinux.lds.h | 13 ++--
include/linux/export.h | 56 ++++----------
include/linux/ksyms.lds.h | 22 ++++++
init/Kconfig | 3 +-
scripts/Makefile.build | 7 +-
scripts/Makefile.lib | 1 +
scripts/adjust_autoksyms.sh | 73 -------------------
.../{gen_autoksyms.sh => gen-keep-ksyms.sh} | 43 ++++++++---
scripts/gen_ksymdeps.sh | 25 -------
scripts/module.lds.S | 23 +++---
39 files changed, 152 insertions(+), 238 deletions(-)
create mode 100644 include/linux/ksyms.lds.h
delete mode 100755 scripts/adjust_autoksyms.sh
rename scripts/{gen_autoksyms.sh => gen-keep-ksyms.sh} (66%)
delete mode 100755 scripts/gen_ksymdeps.sh
--
2.27.0
