objtool: Refactor ORC section generation

Decouple ORC entries from instructions.  This simplifies the
control/data flow, and is going to make it easier to support alternative
instructions which change the stack layout.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>

tools/objtool/include/objtool/arch.h

@@ -11,10 +11,6 @@
 #include <objtool/objtool.h>
 #include <objtool/cfi.h>
 
-#ifdef INSN_USE_ORC
-#include <asm/orc_types.h>
-#endif
-
 enum insn_type {
 	INSN_JUMP_CONDITIONAL,
 	INSN_JUMP_UNCONDITIONAL,

tools/objtool/include/objtool/check.h

@@ -43,9 +43,6 @@ struct instruction {
 	struct symbol *func;
 	struct list_head stack_ops;
 	struct cfi_state cfi;
-#ifdef INSN_USE_ORC
-	struct orc_entry orc;
-#endif
 };
 
 static inline bool is_static_jump(struct instruction *insn)

tools/objtool/include/objtool/objtool.h

@@ -26,7 +26,6 @@ struct objtool_file *objtool_open_read(const char *_objname);
 
 int check(struct objtool_file *file);
 int orc_dump(const char *objname);
-int create_orc(struct objtool_file *file);
-int create_orc_sections(struct objtool_file *file);
+int orc_create(struct objtool_file *file);
 
 #endif /* _OBJTOOL_H */