* PHP-8.3:
pdo_odbc: Fix memory leak if WideCharToMultiByte() fails
Fix memory leak on php_odbc_fetch_hash() failure
Do not delete main chunk in zend_gc
This API can't handle references, yet everyone keeps forgetting that it
can't and that you should DEREF upfront. Fix every type of this issue
once and for all by moving the reference handling to this Zend API.
Closes GH-18761.
The intent here was to assign the first found line. Instead this
always fell back to CG(zend_lineno).
Not sure if this line matters for anything in php-src, but the
issue was observed in https://github.com/nikic/php-ast/issues/247.
Add recursion protection when emitting deprecation warnings for class
constants, since the deprecation message can come from an attribute that is
using the same constant for the message, or otherwise result in recursion.
But, internal constants are persisted, and thus cannot have recursion
protection. Otherwise, if a user error handler triggers bailout before the
recursion flag is removed then a subsequent request (e.g. with `--repeat 2`)
would start with that flag already applied. Internal constants can presumably
be trusted not to use deprecation messages that come from recursive attributes.
Fixes GH-18463
Fixes GH-17711
The trait handling for property hooks in preloading did not exist, we
add a check to skip trait clones and we add the necessary code to update
the op arrays.
Closes GH-18586.
The VM assumes that an exception must be handled when the AST evaluation
returns FAILURE. However, the comparison functions always return SUCCESS
even if an exception happened. This can be fixed in
zend_ast_evaluate_inner() or we can make is_smaller_function() etc check
for the exception. I chose the former to avoid impact or API breaks.
Perhaps in the future the comparison functions should either return void
or return whether an exception happened, as to be not misleading.
Closes GH-18589.
This causes problems if an allocation profiler decides to walk the
stack, or if the engine itself OOMs on this opcode, and it tries to
print file and line information.
With nested objects and recursive comparisons, it is for now unavoidable
to have a stack overflow we do some early damage control attempt early
on with zend.max_allowed_stack_size check but ultimately more a band-aid
than a definitive solution.
close GH-18577
On win64, xmm6-xmm15 are preserved registers, but the prologues and
epilogues of JITted code don't handle these. The issue occurs when
calling into the JIT code again via an internal handler
(like call_user_func). Therefore, we want to save/restore xmm registers
upon entering/leaving execute_ex. Since MSVC x64 does not support inline
assembly, we create an assembly wrapper around the real execute_ex
function.
The alternative is to always save/restore these xmm registers into the
fixed call frame, but this causes unnecessary overhead.
The same issue occurs for ARM64 platforms for floating point register
8 to 15. However, there we can use inline asm to fix this.
Closes GH-18352.
If there's a try-finally where the try_op starts on a basic block with a
single JMP, and the JMP optimization causes that basic block to become
unreachable, then we update try_op.
In this case, there is no catch_op, so try_op is erroneously set to 0,
we should instead set it to `b->start`.
Closes GH-18110.
in_array() calls are compiled to frameless calls. Adjust the
optimization appropriately. Luckily, frameless opcodes simplify the
optimization quite a bit.
Fixes GH-18050
Closes GH-18066
We destroy classes of dl()'ed modules in clean_module_classes(), during
shutdown. Child classes of a module use structures of the parent class (such as
inherited properties), which are destroyed earlier, so we have a use-after-free
when destroying a child class.
Here I destroy classes in reverse order, as it is done in zend_shutdown() for
persistent classes.
Fixes GH-17961
Fixes GH-15367
Saki Takamachi