FAT常见问题

Select an architecture setting the ARCH= environment variable

用jtool2导出Mask的dylib信息期间就遇到了FAT Binary：

➜  DynamicLibraries jtool2 -h MaskPro.dylib > MaskProDylib/MaskProDylib_jtool2_h_header.txt
Fat binary, little-endian, 2 architectures: armv7, arm64
Select an architecture setting the ARCH= environment variable

即，一个Dylib中，包含了多种架构，此处是armv7和arm64

此处要指定具体架构，才能继续用jtool2查看信息：

➜  DynamicLibraries export ARCH=arm64
➜  DynamicLibraries jtool2 -h MaskPro.dylib > MaskProDylib/MaskProDylib_jtool2_h_header.txt

类似的，后续去用MachOView查看信息，也能看到是：FAT Binary

• 
  • ARMV7
    • 
  • ARM64
    •