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| author | Sami Tolvanen <samitolvanen@google.com> | 2020-04-14 02:10:13 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-02-23 23:46:57 +0300 |
| commit | b1a1a1a09b4606d41723a426110382d2077c26fb (patch) | |
| tree | 4c6672f8aa90443585f2ceb4cb4e65425d800c6a /Documentation/xtensa | |
| parent | 41425ebe20245c99b44d6ba0f017be9bfc28414f (diff) | |
| download | linux-b1a1a1a09b4606d41723a426110382d2077c26fb.tar.xz | |
kbuild: lto: postpone objtool
With LTO, LLVM bitcode won't be compiled into native code until
modpost_link, or modfinal for modules. This change postpones calls
to objtool until after these steps, and moves objtool_args to
Makefile.lib, so the arguments can be reused in Makefile.modfinal.
As we didn't have objects to process earlier, we use --duplicate
when processing vmlinux.o. This change also disables unreachable
instruction warnings with LTO to avoid warnings about the int3
padding between functions.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'Documentation/xtensa')
0 files changed, 0 insertions, 0 deletions