If Zip operations fails due to PHP error conditions before libzip even
has been called, there is no meaningful indication what failed; the
functions just return false, and the Zip status indicated that no error
did occur. Therefore we raise `E_WARNING` in these cases.
Closes GH-6356.
This cherry-picks 33969c2252 and
2effbfd871 from PHP-8.0.
The issues these commits fix could also manifest in PHP 7.4, and
a commenter on bug #80307 reports this this might indeed be
happening.
If a trait method is inherited, preloading trait fixup might be
performed on it multiple times. Usually this is fine, because
the opcodes pointer will have already been updated, and will thus
not be found in the xlat table.
However, it can happen that the new opcodes pointer is the same
as one of the old opcodes pointers, if the pointer has been reused
by the allocator. In this case we will look up the wrong op array
and overwrite the trait method with an unrelated trait method.
We fix this by indexing the xlat table not by the opcodes pointer,
but by the refcount pointer. The refcount pointer is not changed
during optimization, and accurately represents which op arrays
should use the same opcodes.
Fixes bug #80307. The test case does not reproduce the bug, because
this depends on a lot of "luck" with the allocator. The test case
merely illustrates a case where orig_op_array would have been NULL
in the original code.
As of commit 81b2f3e[1], `parse_url()` accepts URLs with a zero port,
but does not report that port, what is wrong in hindsight.
Since the port number is stored as `unsigned short` there is no way to
distinguish between port zero and no port. For BC reasons, we thus
introduce `parse_url_ex2()` which accepts an output parameter that
allows that distinction, and use the new function to fix the behavior.
The introduction of `parse_url_ex2()` has been suggested by Nikita.
[1] <http://git.php.net/?p=php-src.git;a=commit;h=81b2f3e5d9fcdffd87a4fcd12bd8c708a97091e1>
Closes GH-6399.
There should not be any need to persist references, and it's unlikely
that persisting a reference will behave correctly at runtime, because
we don't have a concept of an immutable reference.
Let's test the current behavior here. It might not be right, but
it's long-standing behavior.
Nearly missed an assertion failure here because the test was
XFAILed...
We should use normal function renaming if the function is declared
during preloading itself, rather than afterwards.
This fixes a regression introduced by
68f80be9d1.
We should only disable early binding during the opcache_compile_file()
calls, not inside the preloading script or anything it includes.
The right condition to check for is whether we compile the file
without execution, as declaring classes is "execution".
This is a bit annoying: When preloading is used, types might be
resolved during inheritance checks, so we need to deal with CE
types rather than just NAME types everywhere.
When preloading, it's fine to make use of internal class information,
as we do not support Windows. It is also necessary to allow proper
variance checks against internal classes.
While fixing bugs in mbstring, one of my new test cases failed with a strange
error message stating: 'Warning: Undefined array key 1...', when clearly the
array key had been set properly.
GDB'd that sucker and found that JIT'd PHP code was calling directly into
`zend_hash_add_new` (which was not converting the numeric string key to an
integer properly). But where was that code coming from? I examined the disasm,
looked up symbols to figure out where call instructions were going, then grepped
the codebase for those function names. It soon became clear that the disasm I
was looking at was compiled from `zend_jit_fetch_dim_w_helper`.
Nikita Popov