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iseq.c: Fix segfault when debug is not 0

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* iseq.c (get_insn_info_succinct_bitvector): If
  VM_CHECK_MODE is 0, `body->insns_info.positions` is
  freed in `rb_iseq_insns_info_encode_positions`.
  Print `position` only when VM_CHECK_MODE is set.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
yui-knk 2018-05-19 03:43:00 +00:00
parent 6f3bdbf632
commit 548896c927
1 changed files with 10 additions and 4 deletions
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8
iseq.c
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@ -1503,13 +1503,19 @@ get_insn_info_succinct_bitvector(const rb_iseq_t *iseq, size_t pos)
const struct rb_iseq_constant_body *const body = iseq->body;
size_t size = body->insns_info.size;
const struct iseq_insn_info_entry *insns_info = body->insns_info.body;
const unsigned int *positions = body->insns_info.positions;
const int debug = 0;
if (debug) {
#if VM_CHECK_MODE > 0
const unsigned int *positions = body->insns_info.positions;
printf("size: %"PRIuSIZE"\n", size);
printf("insns_info[%"PRIuSIZE"]: position: %d, line: %d, pos: %"PRIuSIZE"\n",
(size_t)0, positions[0], insns_info[0].line_no, pos);
#else
printf("size: %"PRIuSIZE"\n", size);
printf("insns_info[%"PRIuSIZE"]: line: %d, pos: %"PRIuSIZE"\n",
(size_t)0, insns_info[0].line_no, pos);
#endif
}
if (size == 0) {