retval / objc-runtime Goto Github PK

objc4-756.2 has been released.

When I run debug-objc binary e.g. id obj = [[NSObject alloc] init];

the debug point +alloc is not triggering in NSObject.mm
Mac version:10.14.6 Xcode: Version 11.3.1

Do you know why and how I can fix it? Thanks.

麻烦博主更新到最新的 objc4-818.2 版本吧，麻烦了，谢谢了~

dyld: Symbol not found: _sel_hash
Referenced from: /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
Expected in: /Users/yumu/Library/Developer/Xcode/DerivedData/objc-eqtajswswqnllsdtitmgkdoikmzo/Build/Products/Debug/libobjc.A.dylib
in /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
(lldb)

Xcode 9 下打开项目运行失败。

if ((ivars = cls->data()->ro->ivars) && ivars->count) {
result = (Ivar *)malloc((ivars->count+1) * sizeof(Ivar));

    for (auto& ivar : *ivars) {
        if (!ivar.offset) continue;  // anonymous bitfield
        result[count++] = &ivar;
    }
    result[count] = nil;
}

这里为什么要使用ivars->count+1，以及后面的result[count] = nil;呢？
直接使用ivars->count不行吗？

我的QQ是1770421128，希望能详细交流一下

objc-runtime/include/os/lock_private.h:481:2: Use of undeclared identifier 'os_unfair_lock_assert_owner'

I am new here and can not build the project on MacOS Big Sur 11.0.1, Xcode 12.1.

Can anyone give some help or hint on the issue?

Thank you very much.

系统版本：macosOS Catalina 10.15.2 (19C57)
Xcode版本：11.3 (11C29)

是需要更新到 779.1 吗？
https://opensource.apple.com/tarballs/objc4/objc4-779.1.tar.gz

macosOS Catalina 10.15 (19a582a)版本 objc-My Mac 编译，想得到libobjc.A.dylib 文件
Undefined symbol: _objc_opt_class
请问这个大概什么地方出问题了？

我在苹果官方下载的objc源码，680，编译出错 ： 'mach-o/dyld_priv.h' file not found
下载你的这个工程后，编译正常，请问这个文件从哪里找呢？
另外请问下你的博客是？很想拜读一下

System: 10.14
Xcode version: 10.0

log:

dyld: Symbol not found: _objc_debug_taggedpointer_obfuscator
  Referenced from: /usr/lib/system/libxpc.dylib
  Expected in: /Users/Broccoli/Library/Developer/Xcode/DerivedData/objc-ggxyshopfnvlkucfncktchujxfnx/Build/Products/Debug/libobjc.A.dylib
 in /usr/lib/system/libxpc.dylib

Thanks for sharing this! :)
Saved me from a lot of headache.

Do you plan to make update this for objc4-680?

https://opensource.apple.com/source/objc4/objc4-680/

同样希望博主能加上 CoreFoundation、libdispatch，拜托：
https://github.com/apple/swift-corelibs-foundation
https://github.com/apple/swift-corelibs-libdispatch

i download you project and run it,my scheme is debug-objc,and in My Mac，it crashed。the log is dyld: Symbol not found: __object_getExternalHash
Referenced from: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
Expected in: /Users/chenpeng/Library/Developer/Xcode/DerivedData/objc-exdgpjmktzxpjsfjdmdwwchlrjuq/Build/Products/Debug/libobjc.A.dylib
in /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 。
i find answear in website.almot said import library in Build Phases->Link Binary with Libraries,and changed the library in Optional Status。i tried,however the crash is still exist.

dyld: Symbol not found: _sel_hash
Referenced from: /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
Expected in: /Users/kv/Library/Developer/Xcode/DerivedData/objc-dhysxkizblskplbiwqtviqdmfcvm/Build/Products/Debug/libobjc.A.dylib
in /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation

how to fix it

It can not find some c++ std symbols! anyone known why?

when you add a new target , yout must disable the Hardened Runtime capability

Supplement my previous question,when the demo run in 0x7fff5fc01075 <+1>: not,it shows Thread1:EXC_BREAKPOINT(code=EXC_I386_BPT,subcode=0x0)。however i didn't set any breakpoint,then i clicked continue program execution, in 0x7fff5fc011ec <+374>: cmpq $0x0, (%rbx),it shows Thread1:EXC_BAD_ACCESS(code=1,address=0x10).