| Message ID | 20210819005744.644908-1-masahiroy@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | kbuild: refactoring after Clang LTO | expand |
On Thu, Aug 19, 2021 at 9:58 AM Masahiro Yamada <masahiroy@kernel.org> wrote: > > > The introduction of Clang LTO, the kbuild code became much > uglier due to CONFIG_LTO_CLANG conditionals. > > It is painful to maintain the messed-up code, and to review > code changed on top of that. > > > > Masahiro Yamada (13): > kbuild: move objtool_args back to scripts/Makefile.build > gen_compile_commands: extract compiler command from a series of > commands > kbuild: detect objtool changes correctly and remove .SECONDEXPANSION > kbuild: remove unused quiet_cmd_update_lto_symversions > kbuild: remove stale *.symversions > kbuild: merge vmlinux_link() between the ordinary link and Clang LTO > kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh > kbuild: merge vmlinux_link() between ARCH=um and other architectures > kbuild: do not create built-in.a.symversions or lib.a.symversions > kbuild: build modules in the same way with/without Clang LTO > kbuild: always postpone CRC links for module versioning > kbuild: merge cmd_modversions_c and cmd_modversions_S > kbuild: merge cmd_ar_builtin and cmd_ar_module > Patch 01-08 applied. I will take some time for the rest.
The introduction of Clang LTO, the kbuild code became much uglier due to CONFIG_LTO_CLANG conditionals. It is painful to maintain the messed-up code, and to review code changed on top of that. Masahiro Yamada (13): kbuild: move objtool_args back to scripts/Makefile.build gen_compile_commands: extract compiler command from a series of commands kbuild: detect objtool changes correctly and remove .SECONDEXPANSION kbuild: remove unused quiet_cmd_update_lto_symversions kbuild: remove stale *.symversions kbuild: merge vmlinux_link() between the ordinary link and Clang LTO kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh kbuild: merge vmlinux_link() between ARCH=um and other architectures kbuild: do not create built-in.a.symversions or lib.a.symversions kbuild: build modules in the same way with/without Clang LTO kbuild: always postpone CRC links for module versioning kbuild: merge cmd_modversions_c and cmd_modversions_S kbuild: merge cmd_ar_builtin and cmd_ar_module scripts/Makefile.build | 196 ++++++++------------ scripts/Makefile.lib | 28 +-- scripts/Makefile.modfinal | 4 +- scripts/Makefile.modpost | 7 +- scripts/clang-tools/gen_compile_commands.py | 2 +- scripts/link-vmlinux.sh | 125 +++++++------ scripts/mod/modpost.c | 6 +- scripts/mod/sumversion.c | 6 +- 8 files changed, 164 insertions(+), 210 deletions(-)