Remove capstone include folder.
For most of the supported systems it worked fine somehow despite
the pkg-config --cflags, but is always include it even on Linux.
Closes GH-10732.
test failre introduced by 44e5c04e55
This ASSERT-ion path was never reached becuase of the bug fixed by
44e5c04e55. It's possible in case of
circular class dependencies that may resolved by __autoload().
Unfortunately these circular dependencies can't be stored in the
inheritace cahce.
A memfd is a virtual file that has no reachable path, therefore does
not clobber any filesystem. It is deleted automatically as soon as
the last handle gets closed. The feature is available since Linux
kernel 3.17.
Closes GH-10589.
`zend_uchar` suggests that the value is an ASCII character, but here,
it's about very small integers. This is misleading, so let's use a
C99 integer instead.
On all architectures currently supported by PHP, `zend_uchar` and
`uint8_t` are identical. This change is only about code readability.
We can't increase the refcount of internal classes during request time.
To work around this problem we simply don't refcount aliases anymore and
add a check in the destruction to skip aliases entirely.
There were also some checks which checked for an alias implicitly by
comparing the refcount, these have been replaced by checking the type of
the zval instead.
Currently, a function is considered a prototype if the function is not
marked as final. However, a class marked as final also make it
impossible for a function to be overridden. Therefore, we know in this
case too that the function is not a prototype.
This allows the type inference algorithm to determine some types more
precisely, and can allow for more optimizations of the instructions.
Additionally, place some computation of the flags in their respective
blocks as a micro-optimization.
Note: anonymous classes *can* be extended (see test
Zend/tests/anon/011.phpt). Therefore we don't optimize this case.
It was declared to be `int`, but actually returned `zend_result` enum
values. However the name of the function suggests it should be
`bool`, so returning something else is error prone. The function
definition is difficult enough already because the name is negated...
Commit a21195650e added a TSRM destructor, but that destructor
will get called by tsrm_shutdown(), which is after opcache.so has
already been unloaded, resulting in a shutdown crash, e.g.:
#0 0x00007fad01737500 in ?? ()
#1 0x000055ac54e723c4 in tsrm_shutdown () at TSRM/TSRM.c:194
#2 0x000055ac54c42180 in main (argc=80, argv=0x55ac57bc14d0) at sapi/cli/php_cli.c:1388
By calling ts_free_id() before opcache.so gets unloaded, we can easily
fix this crash bug.
* ext/opcache/zend_jit: cast function to fix -Wincompatible-pointer-types
Regression by commit a21195650e
* TSRM/win32: fix ts_allocate_dtor cast
The dtor was casted to ts_allocate_ctor; luckily, ts_allocate_dtor and
ts_allocate_ctor just happen to be the same type.
When benchmarking the file cache of opcache on index.php from a dummy
WordPress install, I noticed that 36.42% of the time was spent in
zend_adler32 to verify the checksums of the files. Callgrind reported
that 332,731,216 instructions were executed during that run and average
time to execute the index file was around 91ms.
This patch implements an SSE2 accelerated version of zend_adler32, which
reduces the number of instructions executed on that bench to
248,600,983, which is a reduction of ~25%. There is also a decrease in
wallclock time measurable: around 10ms. Now only 16.05% of the time is
spent computing checksums.
The benchmark tests were performed using Callgrind, and time for the
wallclock time. These tests were executed multiple times and their
results were averaged. The WordPress install only contains two
almost-blank posts.
This abstracts away, and cleans up, the flag handling for properties of
strings that hold when concatenating two strings if they both hold that
property. (These macros also work with simply copies of strings because
a copy of a string can be considered a concatenation with the empty
string.) This gets rid of some branches and some repetitive code, and
leaves room for adding more flags like these in the future.
The UTF-8 valid flag needs to be copied upon interning,
otherwise strings that are concatenated at compile time lose this information.
However, if previously this string was interned without the flag it is not added
E.g. in the case the string is an existing class name.
Co-authored-by: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
David Carlier