smart_str uses an over-allocated string to optimize for append operations. Functions that use smart_str tend to return the over-allocated string directly. This results in unnecessary memory usage, especially for small strings.
The overhead can be up to 231 bytes for strings smaller than that, and 4095 for other strings. This can be avoided for strings smaller than `4096 - zend_string header size - 1` by reallocating the string.
This change introduces `smart_str_trim_to_size()`, and calls it in `smart_str_extract()`. Functions that use `smart_str` are updated to use `smart_str_extract()`.
Fixes GH-8896
Also refactor what happens on an empty line to return NULL instead of setting the array to [NULL] which makes no design sense at all.
However, as this is the current behaviour create a BC Shim inline function to recreate this weird HashTable in the functions which currently use this API
RFC: https://wiki.php.net/rfc/dnf_types
This allows to combine union and intersection types together in the following form (A&B)|(X&Y)|T but not of the form (X|A)&(Y|B) or (X|A)&(Y|B)|T.
* Improve union type parsing
Co-authored-by: Sara Golemon <pollita@php.net>
Also use CSS variable names; all browsers I can find that support
the prefers-color-scheme media query also support CSS variables.
Someone voiced they didn't want the background texture that php.net
has, so I did not include that.
Fix targeted for oses defining those flags as enums (like Linux/glibc).
`error: converting the enum constant to a boolean [-Werror,-Wint-in-bool-context]
} else if ((!sslsock->ssl_active && value == 0 && (MSG_DONTWAIT || !sslsock->s.is_blocked)) ||`
Closes#8895.
The watch_*.phpt test apparently no longer fail on 32bit, so we remove
the XFAIL conditions. bug77269.phpt is practically identical to
bug77272.phpt, and there seems no particular reason to have an
additional test for libgd ≤ 2.2.5.
Closes GH-8448.
Indirect Branch Tracking (IBT) is part of Intel's Control-Flow
Enforcement Technology (CET). IBT is hardware based, forward edge
Control-Flow-Integrity mechanism where any indirect CALL/JMP must target
an ENDBR instruction or suffer #CP.
This commit adds IBT support for JIT:
1. Add endbr32/64 instruction in Dynasm.
2. Insert endbr32/64 in indirect branch target for jitted code.
gcc support CET since v8.1 and set it to default since gcc 11. With this
commit, endbr is inserted in jitted code if PHP is compiled with "gcc
-fcf-protection=full/branch".
Signed-off-by: Chen, Hu <hu1.chen@intel.com>
The test as is can only work if com_dotnet is built dynamically, and
not already loaded via the php.ini file. While this is given on
AppVeyor, it may not be given in other environments.
Closes GH-8879.
