build-xnu.md

XNU build blog

• Build dtrace
  • mkdir -p obj sym dst
  • $ xcodebuild install -target ctfconvert -target ctfdump -target ctfmerge ARCHS="x86_64" SRCROOT=$PWD OBJROOT=$PWD/obj SYMROOT=$PWD/sym DSTROOT=$PWD/dst
• sudo xcodebuild -license

7.3.1

• hfs:

/xnu-3248.20.55/bsd/hfs/hfs_vfsops.c:2014:51: error:  
      address of array 'hfsmp->vcbVN' will always evaluate to 'true'  
      [-Werror,-Wpointer-bool-conversion]  
        printf("hfs: mounted %s on device %s\n", (hfsmp->vcbVN ? (const ...  

makedefs/MakeInc.def
99:	-Wunreachable-code -Wno-pointer-bool-conversion

• IOkit:

#pragma clang diagnostic ignored "-Wdeprecated-declarations"