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| author |   Peter Zijlstra <peterz@infradead.org> | 2020-03-10 18:39:45 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2020-03-25 18:28:28 +0100 |
| commit | 65fb11a7f6aeae678043738d06248a4e21f4e4e4 (patch) | |
| tree | e0fdb3bbce4da48058fd87271d2375d5ad68e5de /tools/objtool/builtin.h | |
| parent | x86/kexec: Make relocate_kernel_64.S objtool clean (diff) | |
| download | linux-dev-65fb11a7f6aeae678043738d06248a4e21f4e4e4.tar.xz linux-dev-65fb11a7f6aeae678043738d06248a4e21f4e4e4.zip | |
objtool: Optimize find_symbol_by_index()
The symbol index is object wide, not per section, so it makes no sense
to have the symbol_hash be part of the section object. By moving it to
the elf object we avoid the linear sections iteration.
This reduces the runtime of objtool on vmlinux.o from over 3 hours (I
gave up) to a few minutes. The defconfig vmlinux.o has around 20k
sections.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20200324160924.261852348@infradead.org
Diffstat (limited to 'tools/objtool/builtin.h')
0 files changed, 0 insertions, 0 deletions