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Applied a quick fix for "Throwing unknown load command on dataOffsetF…
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…orAddress preemptive#39 "
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@mfarhand-sa
mfarhand-sa committed May 17, 2023
1 parent 2d07f79 commit f94440b
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Binary file added Resources/libsystem_kernel.dylib
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Binary file added Resources/libsystem_platform.dylib
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Binary file added Resources/libsystem_pthread.dylib
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49 changes: 49 additions & 0 deletions Source/CDClassDump.m
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Original file line number Diff line number Diff line change
Expand Up @@ -229,7 +229,40 @@ - (BOOL)loadFile:(CDFile *)file error:(NSError **)error depth:(int)depth {
if ([path hasPrefix:loaderPathPrefix]) {
NSString *loaderPath = [machOFile.filename stringByDeletingLastPathComponent];
path = [[path stringByReplacingOccurrencesOfString:loaderPathPrefix withString:loaderPath] stringByStandardizingPath];

} else {

// First of all, God bless me for fixing this stupid issue and hopefully, the owner of this repo will fix the problem fundamentally 🚀 🎉
// Fixing issue#39 : https://github.com/preemptive/PPiOS-Rename/issues/39 🪲
// Why do we need to do these f...g workaround? 🦧
// because It's so common for Apple to ruin our life 😩
// Many things have been changed on the DYLIB files in the new releases so we need to use the old files 🤷🏻‍♂️
// Thanks to the @BillBai that who motivated me to debug this issue with the following response🫡:

/*
This is because the iOS SDK's frameworks binaries from newer version of Xcode are using chained fixups and export trie Mach-O load commands to encode bind/rebase and symbol info. Not the dyld info in the older version. And the ppios-rename does not support these load commands yet.
A quick fix is just download the older version of Xcode (https://xcodereleases.com) ,and use the older version sdk by passing the "--sdk-root" argument.
*/


// I've added old files to a bundle and read them for this particular DYLIB file. 🥳
// We received the error "Unknown load command: 0x80000033" because of these 3 dylibs files even though we passed the old Xcode path as --sdk-root params in our command.
//You might need to add more dylibs files depending on your project requirements. ( You still need to pass the iPhoneOS.sdk path from the old Xcode (e.g 11-12)

if ([path containsString:@"/usr/lib/system/libsystem_kernel.dylib"]) {
path = [self getFilePathForPPiOSBundle:@"libsystem_kernel.dylib"];
} else if ([path isEqualToString:@"/usr/lib/system/libsystem_platform.dylib"]) {
path = [self getFilePathForPPiOSBundle:@"libsystem_platform.dylib"];
} else if ([path isEqualToString:@"/usr/lib/system/libsystem_pthread.dylib"]) {
path = [self getFilePathForPPiOSBundle:@"libsystem_pthread.dylib"];
}
}

// My $1 tip to you guys: you can find what libraries causing "Unknown load command: 0x80000033" by uncommenting the next line and find it in the terminal windows

// NSLog(@"MoLowKey-Debug : %@ \n",path);
[self machOFileWithName:path andDepth:depth+1]; // Loads as a side effect
}
[self.searchPathState popSearchPaths];
Expand Down Expand Up @@ -486,5 +519,21 @@ - (int)alterPrefixPCHFilesIn:(NSString *)prefixPCHDirectory
return 0;
}

#pragma mark - dylibsHelper

-(NSString*)getFilePathForPPiOSBundle:(NSString*)dylibName {

NSString * dylibsPath = [[NSBundle mainBundle] pathForResource:@"ppiOSBundle" ofType:@"bundle"];
if (dylibsPath) {
NSBundle * ppiOSBundle = [NSBundle bundleWithPath:dylibsPath];
if (ppiOSBundle) {
NSString * path = [[ppiOSBundle resourcePath] stringByAppendingPathComponent:dylibName];
return path;
}
}
return nil;

}

@end

202 changes: 202 additions & 0 deletions ppios-rename.xcodeproj/project.pbxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,12 @@
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Expand All @@ -146,6 +152,13 @@
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Expand Down Expand Up @@ -375,6 +388,10 @@
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Expand Down Expand Up @@ -407,6 +424,16 @@
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/* Begin PBXGroup section */
Expand Down Expand Up @@ -521,6 +548,7 @@
01EB826513A590D9003EDE60 /* class-dump */,
013D1EFE13A5A0F100BF0A67 /* deprotect */,
0165B8B41827137D00CC647F /* UnitTests */,
CD6ACDAB2A1576E50040CAC0 /* Resources */,
01EB826213A590D9003EDE60 /* Frameworks */,
01EB826013A590D9003EDE60 /* Products */,
38653105C3AD1ECFFF532A50 /* ppios-rename Spec */,
Expand All @@ -536,6 +564,7 @@
01EB825F13A590D9003EDE60 /* ppios-rename */,
013D1F1113A5AE5A00BF0A67 /* libMachObjC.a */,
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Expand Down Expand Up @@ -831,6 +860,16 @@
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Expand Down Expand Up @@ -916,13 +955,31 @@
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/* Begin PBXProject section */
Expand All @@ -934,13 +991,19 @@
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Expand All @@ -951,6 +1014,7 @@
013D1F1013A5AE5A00BF0A67 /* MachObjC */,
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0165B8B01827137D00CC647F /* UnitTests */,
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/* End PBXProject section */
Expand All @@ -968,6 +1032,16 @@
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Expand Down Expand Up @@ -1113,6 +1187,13 @@
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Expand All @@ -1121,6 +1202,11 @@
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Expand Down Expand Up @@ -1404,6 +1490,113 @@
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Expand Down Expand Up @@ -1443,6 +1636,15 @@
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Expand Down

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