The issue that BMP RLE occasionally swallowed some pixels[1] had been
fixed long ago in libgd, but apparently it has been overlooked to port
it to our bundled libgd.
We also introduce the test helper `test_image_equals_image()` which
compares in-memory images for equality.
[1] <https://github.com/libgd/libgd/issues/276>
Closes GH-17250.
This bug happens because of a nested `SHM_UNPROTECT()` sequence.
In particular:
```
unprotect memory at ext/opcache/ZendAccelerator.c:2127
protect memory at ext/opcache/ZendAccelerator.c:2160
unprotect memory at ext/opcache/ZendAccelerator.c:2164
unprotect memory at ext/opcache/jit/zend_jit_trace.c:7464
^^^ Nested
protect memory at ext/opcache/jit/zend_jit_trace.c:7591
^^^ Problem is here: it should not protect again due to the nested unprotect
protect memory at ext/opcache/ZendAccelerator.c:2191
^^^ This one should actually protect, not the previous one
```
The reason this nesting happen is because:
1. We try to include the script, this eventually calls `cache_script_in_shared_memory`
2. `zend_optimize_script` will eventually run SCCP as part of the DFA pass.
3. SCCP will try to replace constants, but can also run destructors when a partial array is destructed here:
4e9cde758e/Zend/Optimizer/sccp.c (L2387-L2389)
In this case, this destruction invokes the GC which invokes the tracing JIT,
leading to the nested unprotects.
This patch disables the GC to prevent invoking user code, as user code
is not supposed to run during the optimizer pipeline.
Closes GH-17249.
Co-authored-by: Dmitry Stogov <dmitry@zend.com>
NULL checks for the glob stream are inconsistently applied. To solve
this generally, factor it out to a helper function so it's less likely
to be forgotten in the future.
Closes GH-17231.
A label should be followed by a statement and not a declaration, else old gcc gives the following error: a label can only be part of a statement and a declaration is not a statement
To fix this we wrap the code in the switch case block in braces.
The error handling is incomplete on argument cleanup.
1. The fci is not cleared which means that zend_free_trampoline() is
never called.
2. The cleaning for extra named arguments was missing, resulting in
memory leak.
Closes GH-17219.
When observer is enabled, we normally add an extra temporary to all
functions, to store the previously observed frame. However, this is done in
zend_observer_post_startup() so it doesn't happen to dl'ed() functions.
One possible fix would be to move that from zend_observer_post_startup()
to zend_register_functions(), but this would be too early: Observer may
not be enabled when zend_register_functions() is called, and may still be
enabled later.
However, when zend_register_functions() is called at run-time (during dl()),
we know definitively whether observer is enabled.
Here I update zend_register_functions() to add a temporary to dl'ed()
functions when observer is enabled.
Fixes: GH-17211
Closes: GH-17220
* PHP-8.4:
NEWS for GH-17168
ext/gettext/config.m4: symlink en_US.UTF-8 test bits to en_US for musl
ext/gettext/tests: fix libintl return values under musl
ext/gettext/gettext.c: handle NULLs from bindtextdomain()
* PHP-8.3:
NEWS for GH-17168
ext/gettext/config.m4: symlink en_US.UTF-8 test bits to en_US for musl
ext/gettext/tests: fix libintl return values under musl
ext/gettext/gettext.c: handle NULLs from bindtextdomain()
The gettext() family of functions under musl does not support codeset
suffixes like ".UTF-8", because the only codeset it understands is
UTF-8. (Yes, it is annoying that it doesn't support the suffix for the
codeset that it does understand; no, I am not in charge.) Thanks to
this, we have six failing tests on musl,
* FAIL Gettext basic test with en_US locale that should be on nearly
every system
[ext/gettext/tests/gettext_basic-enus.phpt]
* FAIL Test if bindtextdomain() returns string id if no directory path
is set( if directory path is 'null')
[ext/gettext/tests/gettext_bindtextdomain-cwd.phpt]
* FAIL Test dcgettext() functionality
[ext/gettext/tests/gettext_dcgettext.phpt]
* FAIL Test dgettext() functionality
[ext/gettext/tests/gettext_dgettext.phpt]
* FAIL Test if dngettext() returns the correct translations
(optionally plural).
[ext/gettext/tests/gettext_dngettext-plural.phpt]
* FAIL Test ngettext() functionality
[ext/gettext/tests/gettext_ngettext.phpt]
These are all fixed by symlinking the en_US.UTF-8 message data to en_US,
where musl is able to find it.
This does not make the situation any better for developers (who don't
know what libc their users will be running), but that problem is
inhereted from C and is not the fault of the gettext extension.
This partially addresses GH #13696
Musl has two quirks that are leading to failed internationalization
tests. First is that the return value of bindtextdomain(..., NULL)
will always be false, rather than an "implementation-defined default
directory," because musl does not have an implementation-defined
default directory. One test needs a special case for this.
Second is that the musl implementation of bind_textdomain_codeset()
always returns NULL. The POSIX-correctness of this is debatable, but
it is roughly equivalent to correct, because musl only support UTF-8,
so the NULL value indicating that the codeset is unchanged from the
locale's codeset (UTF-8) is accurate.
PHP's bind_textdomain_codeset() function however treats NULL as
failure, unconditionally:
* https://github.com/php/doc-en/issues/4311
* https://github.com/php/php-src/issues/17163
This unfortunately causes false to be returned consistently on musl --
even when nothing unexpected has happened -- and naturally this is
affecting several tests. For now we change two tests to accept "false"
in addition to "UTF-8" so that they may pass on musl. If PHP's
bind_textdomain_codeset() is updated to differentiate between NULL and
NULL-with-errno-set, these tests can also be updated once again to
reject the NULL-with-errno result.
This partially addresses GH #13696
