mach-o

I've been trying to get my app up and running. From what I could tell the app was missing Cocoapods as a dependency. So. I installed and added Cocoapods. But I'm still getting the same error for whatever reason. I'm an inexperienced developer trying to teach himself I must add. Ld /Users/bfarag/Library/Developer/Xcode/DerivedData/Umbrella-cspuzusfqmqgnwdqfhtiyivaqwke/Build/Products/Debug-iphonesimulator/Umbrella.app/Umbrella normal i386 cd "/Users/bfarag/Desktop/The Nerdery/BRAVO.iOS.CodeChallenge" export IPHONEOS_DEPLOYMENT_TARGET=7.0 export PATH="/Applications/Xcode.app/Contents/Developer

I am interested in programming in x86-64 assembly on the Mac OS X platform. I came across this page about creating a 248B Mach-O program , which led me to Apple's own Mach-O format reference . After that I thought I'd make that same simple C program in Xcode and check out the generated assembly. This was the code: int main(int argc, const char * argv[]) { return 42; } But the assembly generated was 334 lines, containing (based on the 248B model) a lot of excess content. Firstly, why is so much DWARF debug info included in the Release build of a C executable? Secondly, I notice the Mach-O

I'm constantly getting 1 byte offset for implementation address of method shown by 'otool'. For an example 'otool -o' gives 0xe99d5 but 'otool -tvV' gives: +[NSError(SomeCategory) someMethod]: 000e99d4 b590 push {r4, r7, lr} 000e99d6 f6441184 movw r1, 0x4984 000e99da af01 add r7, sp, #4 000e99dc f2c0010a movt r1, 0xa So method starts at 0xe99d4. 0xe99d5 looks wrong, not aligned. I believe that 'otool' works fine and I don't understand some aspects of implementation. How to interpret the output ? Modern ARM cores has two types of instruction sets. Original one is called arm mode where each

I'm building few command-line utilities in Xcode (plain C, no Cocoa). I want all of them to use my customized version of libpng, and I want to save space by sharing one copy of the library among all executables (I don't mind re-distributing .dylib with them). Do I need to do some magic to get libpng export symbols? Does "Link Binary With Libraries" build phase link statically? Apple's docs mention loading of libraries at run time with dlopen , but how I can make Xcode create executable without complaining about missing symbols? I think I've figured it out: libpng wasn't linking properly,

I am developing a Cocoa Application using the latest version of Xcode 4, I want to link dynamic libraries to my project ( dylibs ). I read somewhere that adding the libraries in my project was not enough as I have to run install_name_tool and otool to make my project use the libraries that were bundled in my project. I have read the manual pages for install_name_tool , but I do not understand WHY I have to do this. How do libraries work? Especially interested in the part where the application and the libraries have paths that point to specific places in my machine, like /usr/local/lib

What causes the error Found an unexpected Mach-O header code: 1918975009 in xCode 6 I archived my project to send out as an ad hoc build and it builds/links/archives just fine but when I'm in the xCode organizer and select Export -> Ad Hoc , I get the error Found an unexpected Mach-O header code: 191897500. I had the same error. In my case it was caused by an universal framework that I accidentally copied into the resources of the app (which is unnecessary, since frameworks get merged directly into the main executable on iOS AFAIK). So, select your target, click the "Build Phases" tab, and