iseq.c: add a map from encoded insn to insn data

This enhances rb_vm_insn_addr2insn which retrieves a decoded insn number
from encoded insn.
The insn data table include not only decoded insn number, but also its
len, trace and non-trace version of encoded insn.
This table can be used to simplify trace instrumentation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64518 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 5 deletions

diff --git a/vm_core.h b/vm_core.h
index 1e27e7f839..bb6409719b 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -164,11 +164,7 @@ void *rb_register_sigaltstack(void);
 #endif /* OPT_STACK_CACHING */
 #endif /* OPT_CALL_THREADED_CODE */
 
-#if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
-void rb_addr2insn_init(void);
-#else
-static inline void rb_addr2insn_init(void) { }
-#endif
+void rb_vm_encoded_insn_data_table_init(void);
 typedef unsigned long rb_num_t;
 typedef   signed long rb_snum_t;