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| author |   Josh Poimboeuf <jpoimboe@redhat.com> | 2022-04-18 09:50:39 -0700 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2022-04-22 12:32:04 +0200 |
| commit | 4ab7674f5951ac6a8ac4fa8828090edb64a4771f (patch) | |
| tree | acd05dfd8faea515ddc411501bd25627da4cd148 /scripts/Makefile.build | |
| parent | objtool: Make static call annotation optional (diff) | |
| download | linux-dev-4ab7674f5951ac6a8ac4fa8828090edb64a4771f.tar.xz linux-dev-4ab7674f5951ac6a8ac4fa8828090edb64a4771f.zip | |
objtool: Make jump label hack optional
Objtool secretly does a jump label hack to overcome the limitations of
the toolchain. Make the hack explicit (and optional for other arches)
by turning it into a cmdline option and kernel config option.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lkml.kernel.org/r/3bdcbfdd27ecb01ddec13c04bdf756a583b13d24.1650300597.git.jpoimboe@redhat.com
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 3f20d565733c..f1d2c2e4f15b 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -227,6 +227,7 @@ ifdef CONFIG_OBJTOOL objtool := $(objtree)/tools/objtool/objtool objtool_args = \ + $(if $(CONFIG_HAVE_JUMP_LABEL_HACK), --hacks=jump_label) \ $(if $(CONFIG_X86_KERNEL_IBT), --lto --ibt) \ $(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount) \ $(if $(CONFIG_UNWINDER_ORC), --orc) \ |