archives/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-03-08 01:24:47 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

kbuild: lto: fix module versioning

Browse source 
With CONFIG_MODVERSIONS, version information is linked into each
compilation unit that exports symbols. With LTO, we cannot use this
method as all C code is compiled into LLVM bitcode instead. This
change collects symbol versions into .symversions files and merges
them in link-vmlinux.sh where they are all linked into vmlinux.o at
the same time.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201211184633.3213045-4-samitolvanen@google.com
This commit is contained in:
Sami Tolvanen 2020-12-11 10:46:20 -08:00 • committed by Kees Cook
parent dc5723b02e
commit 38e8918490
6 changed files with 61 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

1
.gitignore vendored
View file

@ -41,6 +41,7 @@
*.so.dbg
*.su
*.symtypes
*.symversions
*.tab.[ch]
*.tar
*.xz