| Date | Wed, 9 Aug 2023 10:34:09 -0400 | From | Josh Poimboeuf <> | Subject | Re: [RFC][PATCH 13/17] objtool/x86: Add arch_is_offset_insn() |
| |
On Wed, Aug 09, 2023 at 09:12:31AM +0200, Peter Zijlstra wrote: > Add a little wrappery to identify the magic symbols that are actually > inside another instruction -- yay for variable length instruction > encoding. > > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> > --- > tools/objtool/arch/x86/decode.c | 6 ++++++ > tools/objtool/check.c | 13 ++++++++++--- > tools/objtool/include/objtool/arch.h | 1 + > tools/objtool/include/objtool/elf.h | 1 + > 4 files changed, 18 insertions(+), 3 deletions(-) > > --- a/tools/objtool/arch/x86/decode.c > +++ b/tools/objtool/arch/x86/decode.c > @@ -826,3 +826,9 @@ bool arch_is_rethunk(struct symbol *sym) > { > return !strcmp(sym->name, "__x86_return_thunk"); > } > + > +bool arch_is_offset_insn(struct symbol *sym) > +{ > + return !strcmp(sym->name, "zen_return_thunk") || > + !strcmp(sym->name, "srso_safe_ret"); > +}
arch_is_embedded_in_insn()?
-- Josh
|