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SubjectRe: [RFC][PATCH 4/5] objtool: Enable compilation of objtool for all architectures
On Fri, May 15, 2020 at 03:56:10PM -0500, Josh Poimboeuf wrote:
> On Mon, May 11, 2020 at 10:35:12AM -0700, Matt Helsley wrote:
> > +struct insn_state {
> > + struct cfi_reg cfa;
> > + struct cfi_reg regs[CFI_NUM_REGS];
> > + int stack_size;
> > + unsigned char type;
> > + bool bp_scratch;
> > + bool drap, end, uaccess, df;
> > + bool noinstr;
> > + s8 instr;
> > + unsigned int uaccess_stack;
> > + int drap_reg, drap_offset;
> > + struct cfi_reg vals[CFI_NUM_REGS];
> > +};
> > +
> > +struct instruction {
> > + struct list_head list;
> > + struct hlist_node hash;
> > + struct section *sec;
> > + unsigned long offset;
> > + unsigned int len;
> > + enum insn_type type;
> > + unsigned long immediate;
> > + bool alt_group, dead_end, ignore, hint, save, restore, ignore_alts;
> > + bool retpoline_safe;
> > + s8 instr;
> > + u8 visited;
> > + struct symbol *call_dest;
> > + struct instruction *jump_dest;
> > + struct instruction *first_jump_src;
> > + struct rela *jump_table;
> > + struct list_head alts;
> > + struct symbol *func;
> > + struct stack_op stack_op;
> > + struct insn_state state;
> > + struct orc_entry orc;
> > +};
>
> Why were these moved to arch.h? They're not necessarily arch-specific,
> but rather "check"-specific, so I think they still belong in check.h, if
> possible.

Hmm, good question. I thought it had something to do with the CFI_NUM_REGS
definition but even if that's the case I think you're right that it should
stay in "check" -- I can verify and if that's the case just just define it
to some dummy value (1?) when it's missing.

Cheers,
-Matt Helsley

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