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iseq.c (rb_iseq_trace_set): refactoring by using encoded_insn_data

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Now it uses encoded_insn_data to identify and replace each encoded insn.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64519 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mame 2018-08-23 08:32:31 +00:00
parent d574683c40
commit 5b72097225
1 changed files with 13 additions and 23 deletions
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36
iseq.c
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@ -2914,14 +2914,20 @@ rb_vm_insn_addr2insn(const void *addr)
rb_bug("rb_vm_insn_addr2insn: invalid insn address: %p", addr);
}
static inline int
encoded_iseq_trace_instrument(VALUE *iseq_encoded_insn, rb_event_flag_t turnon)
{
st_data_t key = (st_data_t)*iseq_encoded_insn;
st_data_t val;
#define TRACE_INSN_P(insn) ((insn) >= VM_INSTRUCTION_SIZE/2)
if (st_lookup(encoded_insn_data, key, &val)) {
insn_data_t *e = (insn_data_t *)val;
*iseq_encoded_insn = (VALUE) (turnon ? e->trace_encoded_insn : e->notrace_encoded_insn);
return e->insn_len;
}
#if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
#define INSN_CODE(insn) ((VALUE)table[insn])
#else
#define INSN_CODE(insn) (insn)
#endif
rb_bug("trace_instrument: invalid insn address: %p", (void *)*iseq_encoded_insn);
}
void
rb_iseq_trace_set(const rb_iseq_t *iseq, rb_event_flag_t turnon_events)
@ -2939,27 +2945,11 @@ rb_iseq_trace_set(const rb_iseq_t *iseq, rb_event_flag_t turnon_events)
unsigned int i;
const struct rb_iseq_constant_body *const body = iseq->body;
VALUE *iseq_encoded = (VALUE *)body->iseq_encoded;
#if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
VALUE *code = rb_iseq_original_iseq(iseq);
const void * const *table = rb_vm_get_insns_address_table();
#else
const VALUE *code = body->iseq_encoded;
#endif
((rb_iseq_t *)iseq)->aux.trace_events = turnon_events;
for (i=0; i<body->iseq_size;) {
int insn = (int)code[i];
rb_event_flag_t events = rb_iseq_event_flags(iseq, i);
if (events & turnon_events) {
if (!TRACE_INSN_P(insn)) {
iseq_encoded[i] = INSN_CODE(insn + VM_INSTRUCTION_SIZE/2);
}
}
else if (TRACE_INSN_P(insn)) {
iseq_encoded[i] = INSN_CODE(insn - VM_INSTRUCTION_SIZE/2);
}
i += insn_len(insn);
i += encoded_iseq_trace_instrument(&iseq_encoded[i], events & turnon_events);
}
/* clear for debugging: ISEQ_ORIGINAL_ISEQ_CLEAR(iseq); */
}