Added debugging tool for symbols.

util/checkSymbols.php

@@ -0,0 +1,146 @@
+<?php
+
+
+/**
+ * This is a simple script to analyze symbols defined or needed by Imagick.
+ * It is an attempt to check verify that the version info that Imagick is assuming
+ * is true about ImageMagick is actually true.
+ */
+
+class SymbolChecker
+{
+	private $requiredSymbols = [];
+	private $providedSymbols = [];
+	private $exclusionPatterns = [];
+	private $exclusions = [];
+
+	public function addExclusionRegex($pattern)
+	{
+		$this->exclusionPatterns[] = $pattern;
+	}
+
+	public function addExclusion($string)
+	{
+		$this->exclusions[] = $string;
+	}
+
+	public function readSymbolsFromFile($imagickSymbols, $isImagick)
+	{
+		$lines = file($imagickSymbols);
+
+		if ($lines === false) {
+			echo "Failed to read $imagickSymbols \n";
+			exit(-1);
+		}
+
+		foreach ($lines as $line) {
+			$line = trim($line);
+			$matched = preg_match('#(.*)(A|B|D|R|T|U|w) (.*)#', $line, $matches);
+			if (!$matched) {
+				echo "Failed to match line: ".$line."\n";
+				continue;
+			}
+
+			$char = $matches[2];
+			$symbol = $matches[3];
+
+			switch($char) {
+				case('U'): {
+					if ($isImagick) {
+						$this->requiredSymbols[] = trim($symbol);
+					}
+					break;
+				}
+
+				case('T'): {
+					$this->providedSymbols[] = trim($symbol);
+					break;
+				}
+			}
+		}
+	}
+
+
+	function getMissingSymbols()
+	{
+		$missing = [];
+
+		foreach ($this->requiredSymbols as $required) {
+			if (in_array($required, $this->providedSymbols) == true) {
+				continue;
+			}
+
+			foreach ($this->exclusionPatterns as $exclusionPattern) {
+				if (preg_match("#".$exclusionPattern."#", $required)) {
+					continue 2;
+				}
+			}
+
+			if (in_array($required, $this->exclusions)) {
+				continue;
+			}
+
+			$missing[] = $required;
+		}
+
+		return $missing;
+	}
+}
+
+
+$symbolChecker = new SymbolChecker();
+
+$symbolChecker->readSymbolsFromFile(__DIR__."/symbols.imagick.txt", true);
+$symbolChecker->readSymbolsFromFile(__DIR__."/symbols.magickcore.txt", false);
+$symbolChecker->readSymbolsFromFile(__DIR__."/symbols.magickwand.txt", false);
+
+$symbolChecker->addExclusionRegex("^zend_.*");
+$symbolChecker->addExclusionRegex("^_.*");
+$symbolChecker->addExclusionRegex("^php_.*");
+$symbolChecker->addExclusionRegex("^str.*");
+$symbolChecker->addExclusionRegex("^add_.*");
+
+$symbolChecker->addExclusionRegex("^access.*");
+$symbolChecker->addExclusionRegex("^convert_to_.*");
+$symbolChecker->addExclusionRegex("^fclose.*"); 
+$symbolChecker->addExclusionRegex("^fopen.*"); 
+$symbolChecker->addExclusionRegex("^fprintf.*"); 
+$symbolChecker->addExclusionRegex("^instanceof_function_ex.*"); 
+$symbolChecker->addExclusionRegex("^memcpy.*"); 
+$symbolChecker->addExclusionRegex("^object_properties_init.*"); 
+$symbolChecker->addExclusionRegex("^setlocale.*");
+
+$symbolChecker->addExclusionRegex("^atoi.*");
+$symbolChecker->addExclusionRegex("^free.*");
+$symbolChecker->addExclusionRegex("^sqrt.*");
+
+$symbolChecker->addExclusion("core_globals_id");
+$symbolChecker->addExclusion("executor_globals_id");
+$symbolChecker->addExclusion("ts_allocate_id");
+$symbolChecker->addExclusion("tsrm_get_ls_cache");
+$symbolChecker->addExclusion("virtual_access");
+$symbolChecker->addExclusion("OnUpdateBool");
+$symbolChecker->addExclusion("ap_php_snprintf"); 
+$symbolChecker->addExclusion("core_globals"); 
+$symbolChecker->addExclusion("display_ini_entries"); 
+$symbolChecker->addExclusion("empty_fcall_info_cache"); 
+$symbolChecker->addExclusion("executor_globals"); 
+$symbolChecker->addExclusion("expand_filepath"); 
+$symbolChecker->addExclusion("spl_ce_Countable"); 
+$symbolChecker->addExclusion("spprintf");
+$symbolChecker->addExclusion("ts_resource_ex");
+
+
+
+$missingList = $symbolChecker->getMissingSymbols();
+
+if (count($missingList) == 0) {
+	exit(0);
+}
+
+echo "Detected missing symbols in imagick library:";
+foreach ($missingList as $missing) {
+	echo "$missing\n";
+}
+
+exit(-1);

util/genSymbols.sh

@@ -0,0 +1,38 @@
+
+set -x
+
+ls /home/travis/im/imagemagick-${IMAGEMAGICK_VERSION}/lib
+
+for arg in libMagickWand-6.Q16.so libMagickWand.so libMagickWand-7.Q16HDRI.so; do
+    filename="/home/travis/im/imagemagick-${IMAGEMAGICK_VERSION}/lib/${arg}"   
+    if [ -f "$filename" ]
+    then
+      nm -gC "$filename" > ./util/symbols.magickwand.txt
+    fi
+done
+
+for arg in libMagickCore-6.Q16.so libMagickCore.so libMagickCore-7.Q16HDRI.so; do
+    filename="/home/travis/im/imagemagick-${IMAGEMAGICK_VERSION}/lib/${arg}"   
+    if [ -f "$filename" ]
+    then
+      nm -gC "$filename" > ./util/symbols.magickcore.txt
+    fi
+done
+
+if [ ! -f ./util/symbols.magickwand.txt ]; then
+    echo "Failed to get symbols for magickwand"
+fi
+
+if [ ! -f ./util/symbols.magickcore.txt ]; then
+    echo "Failed to get symbols for magickcore"
+fi
+
+
+nm -gC ./modules/imagick.so > ./util/symbols.imagick.txt
+
+# debugging only
+# cat ./util/symbols.magickwand.txt
+# cat ./util/symbols.magickcore.txt
+# cat ./util/symbols.imagick.txt
+
+php ./util/checkSymbols.php