firefox macos unwind info

output

$ /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-objdump -arch x86_64 --macho --unwind-info  /Applications/Firefox.app/Contents/MacOS/firefox
Contents of __unwind_info section:
  Version:                                   0x1
  Common encodings array section offset:     0x1c
  Number of common encodings in array:       0x1
  Personality function array section offset: 0x20
  Number of personality functions in array:  0x0
  Index array section offset:                0x20
  Number of indices in array:                0x2
  Common encodings: (count = 1)
    encoding[0]: 0x02020400
  Personality functions: (count = 0)
  Top level indices: (count = 2)
    [0]: function offset=0x000015c0, 2nd level page offset=0x00000038, LSDA offset=0x00000038
    [1]: function offset=0x0000290d, 2nd level page offset=0x00000000, LSDA offset=0x00000038
  LSDA descriptors:
  Second level indices:
    Second level index[0]: offset in section=0x00000038, base function offset=0x000015c0
      [0]: function offset=0x000015c0, encoding[9]=0x021c0400
      [1]: function offset=0x00001690, encoding[8]=0x020a1800
      [2]: function offset=0x00001870, encoding[7]=0x02281800
      [3]: function offset=0x00001ce0, encoding[6]=0x030df800
      [4]: function offset=0x000021b0, encoding[5]=0x04000018
      [5]: function offset=0x000021d0, encoding[4]=0x028c1800
      [6]: function offset=0x000026a0, encoding[3]=0x021c0000
      [7]: function offset=0x00002760, encoding[2]=0x04000038
      [8]: function offset=0x00002790, encoding[0]=0x02020400
      [9]: function offset=0x000027c0, encoding[1]=0x02040802
      [10]: function offset=0x000028e0, encoding[0]=0x02020400