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author | Nathan Chancellor <nathan@kernel.org> | 2024-01-23 23:59:55 +0100 |
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committer | Masahiro Yamada <masahiroy@kernel.org> | 2024-01-27 17:13:37 +0100 |
commit | 397586506c3da005b9333ce5947ad01e8018a3be (patch) | |
tree | 7a4b02b19165ddb7c44127113cbb3bfd750453c4 /Makefile | |
parent | um: Fix adding '-no-pie' for clang (diff) | |
download | linux-397586506c3da005b9333ce5947ad01e8018a3be.tar.xz linux-397586506c3da005b9333ce5947ad01e8018a3be.zip |
modpost: Add '.ltext' and '.ltext.*' to TEXT_SECTIONS
After the linked LLVM change, building ARCH=um defconfig results in a
segmentation fault in modpost. Prior to commit a23e7584ecf3 ("modpost:
unify 'sym' and 'to' in default_mismatch_handler()"), there was a
warning:
WARNING: modpost: vmlinux.o(__ex_table+0x88): Section mismatch in reference to the .ltext:(unknown)
WARNING: modpost: The relocation at __ex_table+0x88 references
section ".ltext" which is not in the list of
authorized sections. If you're adding a new section
and/or if this reference is valid, add ".ltext" to the
list of authorized sections to jump to on fault.
This can be achieved by adding ".ltext" to
OTHER_TEXT_SECTIONS in scripts/mod/modpost.c.
The linked LLVM change moves global objects to the '.ltext' (and
'.ltext.*' with '-ffunction-sections') sections with '-mcmodel=large',
which ARCH=um uses. These sections should be handled just as '.text'
and '.text.*' are, so add them to TEXT_SECTIONS.
Cc: stable@vger.kernel.org
Closes: https://github.com/ClangBuiltLinux/linux/issues/1981
Link: https://github.com/llvm/llvm-project/commit/4bf8a688956a759b7b6b8d94f42d25c13c7af130
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions