This is achieved by tracking the observers on the run_time_cache (with a fixed amount of slots, 2 for each observer).
That way round, if the run_time_cache is freed all associated observer data is as well.
This approach has been chosen, as to avoid any ABI or API breakage.
Future versions may for example choose to provide a hookable API for run_time_cache freeing or similar.
When we need to evaluate constant ASTs, we always have to do that in
the scope where the constant has been defined, which may be a parent
of the `ReflectionClass`'s scope.
Closes GH-8106.
If either the first or second operand of `range()` may be a string, we
must not exclude the possibility that the result may be an array of
longs.
Closes GH-8131.
fpm_scoreboard_copy locks the scoreboard while copying the scoreboard and all
proc scoreboards. proc scoreboards are locked one by one while copying each
struct. The old implementation (inside fpm_handle_status_request) only briefly
locked the scoreboard while copying the scorebard.
Closes GH-7931
Co-authored-by: Jakub Zelenka <bukka@php.net>
We need to reset the shift state right after conversion, to cater to
potenially following plain encodings. Also, there is no need to reset
the shift for plain encodings, because these are not state-dependent.
Closes GH-8025.
If an output handler has not yet been started, calling `ob_clean()`
causes it to start. If that happens, we must not forget to set the
`Content-Encoding` and `Vary` headers.
Closes GH-7960.
When bug 77574[1] has been fixed, the fix only catered to variables
retrieved via `getenv()` with a `$varname` passed, but neither to
`getenv()` without arguments nor to the general import of environment
variables into `$_ENV` and `$_SERVER`. We catch up on this by using
`GetEnvironmentStringsW()` in `_php_import_environment_variables()` and
converting the encoding to whatever had been chosen by the user.
[1] <https://bugs.php.net/bug.php?id=75574>
Closes GH-7928.
We explicitly check for an exception after the logging attempt, and
bail out in that case.
Co-authored-by: Tim Düsterhus <timwolla@googlemail.com>
Closes GH-7878.
Casting from pointer to array is special, so we must not fall back to
the general FFI casting. There is a particular issue regarding the
size comparison, namely that the pointer size is always 8 for 64bit
architectures, but the size of an array is determined by its
declaration, so as is casting a pointer to an array with more than 8
elements would fail, but casting to an array with less than 9 elements
succeeds, but the internal pointer would point to some arbitrary
memory.
We fix this by properly supporting the cast. An alternative would be
to deny this kind of cast generally, since it is not necessarily safe.
However, FFI isn't necessarily safe anyway.
We also check pointer/array type compatibility when casting.
Co-authored-by: Dmitry Stogov <dmitry@zend.com>
Closes GH-7876.
By switching attribute constructor stackframe to be called via
trampoline the stack allocation is not causing dangling pointers
in the zend_observer API anymore.
Co-Authored-By: Florian Sowade <f.sowade@suora.com>
Co-Authored-By: Christopher Becker <cmbecker69@gmx.de>
Co-Authored-By: Dmitry Stogov <dmitry@zend.com>
Closes GH-7885.
Unless stringified results are requested, we need to parse large
bigints as unsigned, to avoid wrap-around behavior.
Co-authored-by: Christoph M. Becker <cmbecker69@gmx.de>
Closes GH-7837.
This may happen, when the execute_data was allocated on the stack. We
ensure that the runtime cache pointer is not NULL before dereferencing
it.
This is a partial fix for bug 81430.
Closes GH-7665.
Like `hash_file()`, `hash_hmac_file()` expects a filename, and not some
string data. Fixing this now, constitutes a (hopefully small) BC break
though.
Closes GH-7828.
On NetBSD, ifconf.ifc_buf member, unlike most of platforms, is a void
pointer.
We also fix the cpuinfo declarations with empty parameter lists.
Closes GH-7819.
`2001:10::/28` is a reserved IPv6 range. But there's a typo in GH-7476,
which caused IPv6 address like `240b:0010::1` will be filtered by the
flag `FILTER_FLAG_NO_RES_RANGE`.
http://www.faqs.org/rfcs/rfc6890.html
Closes GH-7790.
When a new process reattaches to OPcache, tracing JIT causes segfaults,
because each new process allocates its own `zend_jit_traces` and
`zend_jit_exit_groups` in SHM, although these need to be shared between
all processes.
We solve that by only allocating these structs for the first process,
and store the pointers in `accel_shared_globals`, so we can reassign
them when a new process reattaches.
Closes GH-7776.
We must not use the TSRM accessor macros in GINIT and GSHUTDOWN, but
rather use the passed pointers directly. For simplicity, we inline
`php_oci_cleanup_global_handles()`, and also the `PHP_OCI_CALL()`
macros; the latter are unlikely to be needed here, but don't hurt.
Closes GH-7766.
`hash()` and `hash_hmac()` never return `false`; only `hash_file()` and
`hash_hmac_file()` return `false` in case the data cannot be read.
Closes GH-7760.
The amount of allocated system memory is kept in `real_size`, including
the allocated `cached_chunks`. Thus, we need to keep the proper count
at the end of the shutdown.
Closes GH-7745.
Trying to allocate a `zend_string` with a length only slighty smaller
than `SIZE_MAX` causes an integer overflow; we make sure that this
doesn't happen by catering to the maximal overhead of a `zend_string`.
Closes GH-7597.
Since we're going to read from the current stream position anyway, the
`max_len` should be the size of the file minus the current position
(still catering to potentially filtered streams). We must, however,
make sure to cater to the file position being beyond the actual file
size.
While we're at, we also fix the step size in the comment, which is 8K.
A further optimization could be done for unfiltered streams, thus
saving that step size, but 8K might not be worth it.
Closes GH-7693.
