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| author | Peter Zijlstra <peterz@infradead.org> | 2021-03-26 18:12:12 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-04-02 13:45:27 +0300 |
| commit | 43d5430ad74ef5156353af7aec352426ec7a8e57 (patch) | |
| tree | 5ae512d57b4bb1535cc106c4e68e35ddd58d3085 /tools/objtool/objtool.c | |
| parent | 2f2f7e47f0525cbaad5dd9675fd9d8aa8da12046 (diff) | |
| download | linux-43d5430ad74ef5156353af7aec352426ec7a8e57.tar.xz | |
objtool: Keep track of retpoline call sites
Provide infrastructure for architectures to rewrite/augment compiler
generated retpoline calls. Similar to what we do for static_call()s,
keep track of the instructions that are retpoline calls.
Use the same list_head, since a retpoline call cannot also be a
static_call.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lkml.kernel.org/r/20210326151300.130805730@infradead.org
Diffstat (limited to 'tools/objtool/objtool.c')
| -rw-r--r-- | tools/objtool/objtool.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/objtool/objtool.c b/tools/objtool/objtool.c index 7b97ce499405..3a3ea1b4e4da 100644 --- a/tools/objtool/objtool.c +++ b/tools/objtool/objtool.c @@ -61,6 +61,7 @@ struct objtool_file *objtool_open_read(const char *_objname) INIT_LIST_HEAD(&file.insn_list); hash_init(file.insn_hash); + INIT_LIST_HEAD(&file.retpoline_call_list); INIT_LIST_HEAD(&file.static_call_list); INIT_LIST_HEAD(&file.mcount_loc_list); file.c_file = !vmlinux && find_section_by_name(file.elf, ".comment"); |