How to verify the consistency of the. IPA package,. DSYM,. Crash files

Objective

In order to effectively monitor and process some of the crashes on the line, we typically count the crash information. In the process of handling crash information, it is often necessary to find out which of the crash information corresponds to the build result, what do I do? (If the crash statistics tool used in your application has integrated the analysis functionality, this article can be ignored.) ）

Problems and Solutions

2. How do I confirm that the crash information in my test version corresponds to which build?

   Each executable file has a build UUID that uniquely identifies it. Crash logs include the build UUID of the crashed application and all the libraries that were loaded when the crash occurred. You need to verify that the build's UUID and crash information contain the same UUID.

3. such as and view crash logs and build UUID information

   • View the build UUID of the crash log

     ① use Xcode to connect crash device, open Window->organizer, left app list select your app, Top tab switch to crash, find your crash, right menu show in finder-> Show Package Contents->/ Distributioninfos/all/logs, you can see all of the current types of flash-back lists.

     The ② executes the following command at the terminal.

     $ grep --after-context=2 "Binary Images:" Example.crash

     You will see a result similar to this:

       Binary Images:    0xb6000 - 0xb7fff +Example armv7 <270a9b9d7a333a4a9f1aaf8186f81394> /var/mobile/Applications/28D4F177-D312-4D3B-A76C-C2ACB4CB7DAD/Example.app/Example    0x2feb5000 - 0x2fed6fff  dyld armv7 <4a817f3e0def30d5ae2032157d889c1d> /usr/lib/dyld

   Here, the build UUID is 270a9b9d7a333a4a9f1aaf8186f81394, and the executable file for the path application is example.app/example.

   • How to view the UUID of an . IPA package

     ① extracting. IPA files

     $ cp Example.ipa Example.zip$ unzip Example.zip

     Decompression Results View:

     $ cd Payload$ lsExample.app

     ② You can print an executable build UUID from the terminal using the following command

     $ xcrun dwarfdump --uuid Example.app/Example

     Example results:

     UUID: 270A9B9D-7A33-3A4A-9F1A-AF8186F81394 (armv7) Example.app/ExampleUUID: 7711EC60-C0B2-3608-A539-182C77AE01ED (armv64) Example.app/Example

   • How to view the UUID of a . ddym file

     ① use the terminal to enter the following command

     $ dwarfdump --uuid /Users/wusuowei/Desktop/Example.dSYM

     Example results:

     UUID: FEB022C4-F950-37DD-8D19-D4C63D1D1474 (armv7) /Example.dSYM/Contents/Resources/DWARF/ExampleUUID: 250F0F9E-7855-3347-900A-F555442C9F29 (arm64) /Example.dSYM/Contents/Resources/DWARF/Example

Reference

How to Match a Crash report to a Build

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How to verify the consistency of the. IPA package,. DSYM,. Crash files