fix can’t find strlen function address question

YPLiang19 · Mar 7, 2023 · 5d25496 · 5d25496
1 parent 2143f9f
commit 5d25496
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Showing 9 changed files with 148 additions and 69 deletions.
diff --git a/symdl/symdl/symdl.c b/symdl/symdl/symdl.c
@@ -166,5 +166,8 @@ void *symdl(const char *symbol){
             return pointer;
         }
     }
+    if (strcmp(symbol, "strlen") == 0) {
+        return symdl("_platform_strlen");
+    }
     return NULL;
 }
diff --git a/symdl_example/symdl_example.xcodeproj/project.pbxproj b/symdl_example/symdl_example.xcodeproj/project.pbxproj
@@ -7,8 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		8941CAED28B3386500B77455 /* SomeCppFile.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 8941CAEB28B3386500B77455 /* SomeCppFile.cpp */; };
-		89E7B07A25651F06004B02D5 /* AppDelegate.mm in Sources */ = {isa = PBXBuildFile; fileRef = 89E7B07925651F06004B02D5 /* AppDelegate.mm */; };
+		89E7B07A25651F06004B02D5 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 89E7B07925651F06004B02D5 /* AppDelegate.m */; };
 		89E7B07D25651F06004B02D5 /* SceneDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 89E7B07C25651F06004B02D5 /* SceneDelegate.m */; };
 		89E7B08025651F06004B02D5 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 89E7B07F25651F06004B02D5 /* ViewController.m */; };
 		89E7B08325651F06004B02D5 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 89E7B08125651F06004B02D5 /* Main.storyboard */; };
@@ -20,11 +19,9 @@
 
 /* Begin PBXFileReference section */
 		0648422A8C85329A1854638B /* Pods-symdl_example.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-symdl_example.release.xcconfig"; path = "Target Support Files/Pods-symdl_example/Pods-symdl_example.release.xcconfig"; sourceTree = "<group>"; };
-		8941CAEB28B3386500B77455 /* SomeCppFile.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = SomeCppFile.cpp; sourceTree = "<group>"; };
-		8941CAEC28B3386500B77455 /* SomeCppFile.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = SomeCppFile.hpp; sourceTree = "<group>"; };
 		89E7B07525651F05004B02D5 /* symdl_example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = symdl_example.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		89E7B07825651F06004B02D5 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
-		89E7B07925651F06004B02D5 /* AppDelegate.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = AppDelegate.mm; sourceTree = "<group>"; };
+		89E7B07925651F06004B02D5 /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
 		89E7B07B25651F06004B02D5 /* SceneDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = SceneDelegate.h; sourceTree = "<group>"; };
 		89E7B07C25651F06004B02D5 /* SceneDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = SceneDelegate.m; sourceTree = "<group>"; };
 		89E7B07E25651F06004B02D5 /* ViewController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ViewController.h; sourceTree = "<group>"; };
@@ -89,13 +86,11 @@
 			isa = PBXGroup;
 			children = (
 				89E7B07825651F06004B02D5 /* AppDelegate.h */,
-				89E7B07925651F06004B02D5 /* AppDelegate.mm */,
+				89E7B07925651F06004B02D5 /* AppDelegate.m */,
 				89E7B07B25651F06004B02D5 /* SceneDelegate.h */,
 				89E7B07C25651F06004B02D5 /* SceneDelegate.m */,
 				89E7B07E25651F06004B02D5 /* ViewController.h */,
 				89E7B07F25651F06004B02D5 /* ViewController.m */,
-				8941CAEC28B3386500B77455 /* SomeCppFile.hpp */,
-				8941CAEB28B3386500B77455 /* SomeCppFile.cpp */,
 				89E7B08125651F06004B02D5 /* Main.storyboard */,
 				89E7B08425651F07004B02D5 /* Assets.xcassets */,
 				89E7B08625651F07004B02D5 /* LaunchScreen.storyboard */,
@@ -201,9 +196,8 @@
 			buildActionMask = 2147483647;
 			files = (
 				89E7B08025651F06004B02D5 /* ViewController.m in Sources */,
-				89E7B07A25651F06004B02D5 /* AppDelegate.mm in Sources */,
+				89E7B07A25651F06004B02D5 /* AppDelegate.m in Sources */,
 				89E7B08B25651F07004B02D5 /* main.m in Sources */,
-				8941CAED28B3386500B77455 /* SomeCppFile.cpp in Sources */,
 				89E7B07D25651F06004B02D5 /* SceneDelegate.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -281,7 +275,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -334,7 +328,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = iphoneos;
@@ -349,16 +343,19 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_IDENTITY = "Apple Development";
-				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = 59669493D8;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				CODE_SIGN_STYLE = Manual;
+				DEVELOPMENT_TEAM = "";
+				"DEVELOPMENT_TEAM[sdk=iphoneos*]" = 59669493D8;
 				INFOPLIST_FILE = symdl_example/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.yongpengliang.symdl;
+				PRODUCT_BUNDLE_IDENTIFIER = com.ypl.demo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
+				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = comypldemo;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -370,16 +367,19 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_IDENTITY = "Apple Development";
-				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = 59669493D8;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				CODE_SIGN_STYLE = Manual;
+				DEVELOPMENT_TEAM = "";
+				"DEVELOPMENT_TEAM[sdk=iphoneos*]" = 59669493D8;
 				INFOPLIST_FILE = symdl_example/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.tencent.itop.example123;
+				PRODUCT_BUNDLE_IDENTIFIER = com.ypl.demo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
+				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = comypldemo;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;

diff --git a/symdl_example/symdl_example.xcodeproj/xcshareddata/xcschemes/symdl_example.xcscheme b/symdl_example/symdl_example.xcodeproj/xcshareddata/xcschemes/symdl_example.xcscheme
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1420"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "89E7B07425651F05004B02D5"
+               BuildableName = "symdl_example.app"
+               BlueprintName = "symdl_example"
+               ReferencedContainer = "container:symdl_example.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "89E7B07425651F05004B02D5"
+            BuildableName = "symdl_example.app"
+            BlueprintName = "symdl_example"
+            ReferencedContainer = "container:symdl_example.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "89E7B07425651F05004B02D5"
+            BuildableName = "symdl_example.app"
+            BlueprintName = "symdl_example"
+            ReferencedContainer = "container:symdl_example.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/...example.xcodeproj/xcuserdata/yongpengliang.xcuserdatad/xcschemes/xcschememanagement.plist b/...example.xcodeproj/xcuserdata/yongpengliang.xcuserdatad/xcschemes/xcschememanagement.plist
@@ -10,5 +10,13 @@
 			<integer>2</integer>
 		</dict>
 	</dict>
+	<key>SuppressBuildableAutocreation</key>
+	<dict>
+		<key>89E7B07425651F05004B02D5</key>
+		<dict>
+			<key>primary</key>
+			<true/>
+		</dict>
+	</dict>
 </dict>
 </plist>
diff --git a/...l_example.xcworkspace/xcuserdata/yongpengliang.xcuserdatad/UserInterfaceState.xcuserstate b/...l_example.xcworkspace/xcuserdata/yongpengliang.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/...ple.xcworkspace/xcuserdata/yongpengliang.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/...ple.xcworkspace/xcuserdata/yongpengliang.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -3,4 +3,22 @@
    uuid = "ACA7B37E-4A24-40D2-803F-921A02E92972"
    type = "0"
    version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            uuid = "E5127474-E9D8-4443-82B1-71B195AF74E8"
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "symdl_example/AppDelegate.mm"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "54"
+            endingLineNumber = "54"
+            landmarkName = "-application:didFinishLaunchingWithOptions:"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
 </Bucket>
diff --git a/symdl_example/symdl_example/AppDelegate.mm → symdl_example/symdl_example/AppDelegate.m b/symdl_example/symdl_example/AppDelegate.mm → symdl_example/symdl_example/AppDelegate.m
@@ -8,9 +8,11 @@
 #import "AppDelegate.h"
 #import <dlfcn.h>
 #import <symdl/symdl.h>
-#import "SomeCppFile.hpp"
+#import <string.h>
+#import <mach-o/stab.h> 
+
+extern size_t    platform_strlen(const char *__s);
 
-SomeCppClass sc2;
 
 @interface AppDelegate ()
 
@@ -22,28 +24,37 @@ @implementation AppDelegate
 NSString * MyNSStringGlobalVar = @"efasg";
 const char * MyCStringGlobalVar = "afaf";
 
-extern "C" void my_load(void *p){
-    NSLog(@"%p", p);
-}
-
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 
 
     void *fopen_ptr = symdl("fopen");
-    
-    
+
+
     printf("fopen addrss: %p\n", fopen);
     printf("dymdl fopen addrss: %p\n", fopen_ptr);
-    
-    
-    
+
+
+
     int *MyIntGlobalVarPtr = (int *)symdl("MyIntGlobalVar");
     char **MyCStringGlobalVarPtr = (char * *)symdl("MyCStringGlobalVar");
     NSString * const*MyNSStringGlobalVarPtr = (NSString * const*)symdl("MyNSStringGlobalVar");
-    
+
     NSLog(@"MyIntGlobalVar: %d", *MyIntGlobalVarPtr);
     NSLog(@"MyCStringGlobalVar: %s", *MyCStringGlobalVarPtr);
     NSLog(@"MyNSStringGlobalVar: %@", *MyNSStringGlobalVarPtr);
+
+
+
+
+
+
+    size_t (*strPtr)(const char *) =  symdl("strlen");;
+    size_t (*_platform_strlenPtr)(const char *)  = symdl("_platform_strlen");
+
+
+
+    printf("%zu %zu", strPtr("agaef"), _platform_strlenPtr("aafea444"));
+//
 
     return YES;
 }

diff --git a/symdl_example/symdl_example/SomeCppFile.cpp b/symdl_example/symdl_example/SomeCppFile.cpp
diff --git a/symdl_example/symdl_example/SomeCppFile.hpp b/symdl_example/symdl_example/SomeCppFile.hpp