[WIP] Add support for stripped ZTS binaries

src/Lib/Elf/Structure/Elf64/Elf64ProgramHeaderEntry.php

@@ -24,6 +24,7 @@ final class Elf64ProgramHeaderEntry
     public const PT_NOTE = 4;
     public const PT_SHLIB = 5;
     public const PT_PHDR = 6;
+    public const PT_TLS = 7;
     public const PT_LOPROC = 0x70000000;
     public const PT_HIPROC = 0x7fffffff;
 
@@ -73,4 +74,9 @@ public function isNote(): bool
     {
         return $this->p_type === self::PT_NOTE;
     }
+
+    public function isTls(): bool
+    {
+        return $this->p_type === self::PT_TLS;
+    }
 }

src/Lib/Elf/Structure/Elf64/Elf64ProgramHeaderTable.php

@@ -82,4 +82,22 @@ public function findDynamic(): array
         }
         return $result;
     }
+
+    /** @return Elf64ProgramHeaderEntry[] */
+    public function findTls(): array
+    {
+        $result = [];
+        foreach ($this->entries as $entry) {
+            if ($entry->isTls()) {
+                $result[] = $entry;
+            }
+        }
+        return $result;
+    }
+
+    /** @return Elf64ProgramHeaderEntry[] */
+    public function getAllEntries(): array
+    {
+        return $this->entries;
+    }
 }

src/Lib/PhpInternals/Types/Zend/ZendExecutorGlobals.php

@@ -20,6 +20,12 @@
 
 final class ZendExecutorGlobals implements Dereferencable
 {
+    /** @psalm-suppress PropertyNotSetInConstructor */
+    public Zval $uninitialized_zval;
+
+    /** @psalm-suppress PropertyNotSetInConstructor */
+    public Zval $error_zval;
+
     /** @var Pointer<ZendExecuteData>|null */
     public ?Pointer $current_execute_data;
 
@@ -61,6 +67,8 @@
         private CastedCData $casted_cdata,
         private Pointer $pointer,
     ) {
+        unset($this->uninitialized_zval);
+        unset($this->error_zval);
         unset($this->current_execute_data);
         unset($this->function_table);
         unset($this->class_table);
@@ -75,6 +83,32 @@
     public function __get(string $field_name): mixed
     {
         return match ($field_name) {
+            'uninitialized_zval' => $this->uninitialized_zval = new Zval(
+                new CastedCData(
+                    $this->casted_cdata->casted->uninitialized_zval,
+                    $this->casted_cdata->casted->uninitialized_zval
+                ),
+                new Pointer(
+                    Zval::class,
+                    $this->pointer->address
+                    +
+                    \FFI::typeof($this->casted_cdata->casted)->getStructFieldOffset('uninitialized_zval'),
+                    \FFI::sizeof($this->casted_cdata->casted->uninitialized_zval),
+                ),
+            ),
+            'error_zval' => $this->error_zval = new Zval(
+                new CastedCData(
+                    $this->casted_cdata->casted->error_zval,
+                    $this->casted_cdata->casted->error_zval
+                ),
+                new Pointer(
+                    Zval::class,
+                    $this->pointer->address
+                    +
+                    \FFI::typeof($this->casted_cdata->casted)->getStructFieldOffset('error_zval'),
+                    \FFI::sizeof($this->casted_cdata->casted->error_zval),
+                ),
+            ),
             'current_execute_data' => $this->casted_cdata->casted->current_execute_data !== null
                 ? Pointer::fromCData(
                     ZendExecuteData::class,

src/Lib/PhpInternals/Types/Zend/Zval.php

@@ -92,6 +92,11 @@ public function isNull(): bool
         return $this->getType() === 'IS_NULL';
     }
 
+    public function isError(): bool
+    {
+        return $this->u1->isError();
+    }
+
     public function isScalar(): bool
     {
         return $this->isLong() || $this->isDouble() || $this->isBool() || $this->isNull();

src/Lib/PhpInternals/Types/Zend/ZvalU1.php

@@ -68,4 +68,9 @@ public function getType(): string
             default => 'UNKNOWN',
         };
     }
+
+    public function isError(): bool
+    {
+        return $this->type === 15;
+    }
 }

src/Lib/PhpProcessReader/PhpGlobalsFinder.php

@@ -31,7 +31,8 @@ class PhpGlobalsFinder
     public function __construct(
         private PhpSymbolReaderCreator $php_symbol_reader_creator,
         private IntegerByteSequenceReader $integer_reader,
-        private MemoryReaderInterface $memory_reader
+        private MemoryReaderInterface $memory_reader,
+        private PhpTsrmLsCacheFinder $tsrm_ls_cache_finder,
     ) {
     }
 
@@ -58,7 +59,7 @@ public function findTsrmLsCache(
             }
             return $tsrm_ls_cache_address;
         }
-        return null;
+        return $this->tsrm_ls_cache_finder->findByBruteForcing($process_specifier, $target_php_settings);
     }
 
     /**