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compile.c: zero fill

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* compile.c (ibf_dump_align): fill padding with zero, instead of
  resizing only, not to leave garbages.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63098 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-04-05 07:00:08 +00:00
parent 4a7bf2efe7
commit 04dfc46ad0
1 changed files with 7 additions and 3 deletions
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10
compile.c
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@ -8231,13 +8231,17 @@ ibf_dump_align(struct ibf_dump *dump, size_t align)
{
ibf_offset_t pos = ibf_dump_pos(dump);
if (pos % align) {
long size = (long)pos - (pos % align) + align;
static const char padding[sizeof(VALUE)];
size_t size = align - ((size_t)pos % align);
#if SIZEOF_LONG > SIZEOF_INT
if (pos >= UINT_MAX) {
if (pos + size >= UINT_MAX) {
rb_raise(rb_eRuntimeError, "dump size exceeds");
}
#endif
rb_str_resize(dump->str, size);
for (; size > sizeof(padding); size -= sizeof(padding)) {
rb_str_cat(dump->str, padding, sizeof(padding));
}
rb_str_cat(dump->str, padding, size);
}
}