After reading all these answers here in order to symbolicate a crash log (and finally succeeding) I think there are some points missing here that are really important in order to determine why the invocation of symbolicatecrash does not produce a symbolicated output.
There are 3 assets that have to fit together when symbolicating a crash log:
- The crash log file itself (i.e.
example.crash
), either exported from XCode's organizer or received from iTunes Connect.
- The
.app
package (i.e. example.app
) that itself contains the app binary belonging to the crash log. If you have an .ipa
package (i.e. example.ipa
) then you can extract the .app
package by unzipping the .ipa
package (i.e. unzip example.ipa
). Afterwards the .app
package resides in the extracted Payload/
folder.
- The
.dSYM
package containing the debug symbols (i.e. example.app.dSYM
)
Before starting symbolication you should check if all those artifacts match, which means that the crash log belongs to the binary you have and that the debug symbols are the ones produced during the build of that binary.
Each binary is referred by a UUID that can be seen in the crash log file:
...
Binary Images:
0xe1000 - 0x1f0fff +example armv7 <aa5e633efda8346cab92b01320043dc3> /var/mobile/Applications/9FB5D11F-42C0-42CA-A336-4B99FF97708F/example.app/example
0x2febf000 - 0x2fedffff dyld armv7s <4047d926f58e36b98da92ab7a93a8aaf> /usr/lib/dyld
...
In this extract the crash log belongs to an app binary image named example.app/example with UUID aa5e633efda8346cab92b01320043dc3
.
You can check the UUID of the binary package you have with dwarfdump:
dwarfdump --uuid example.app/example
UUID: AA5E633E-FDA8-346C-AB92-B01320043DC3 (armv7) example.app/example
Afterwards you should check if the debug symbols you have also belong to that binary:
dwarfdump --uuid example.app.dSYM
UUID: AA5E633E-FDA8-346C-AB92-B01320043DC3 (armv7) example.app.dSYM/Contents/Resources/DWARF/example
In this example all assets fit together and you should be able to symbolicate your stacktrace.
Proceeding to the symbolicatecrash
script:
In Xcode 8.3 you should be able to invoke the script via
/Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash -v example.crash 2> symbolicate.log
If it is not there you may run a find . -name symbolicatecrash
in your Xcode.app directory to find it.
As you can see there are no more parameters given. So the script has to find your application binary and debug symbols by running a spotlight search. It searches the debug symbols with a specific index called com_apple_xcode_dsym_uuids
. You can do this search yourself:
mdfind 'com_apple_xcode_dsym_uuids = *'
resp.
mdfind "com_apple_xcode_dsym_uuids == AA5E633E-FDA8-346C-AB92-B01320043DC3"
The first spotlight invocation gives you all indexed dSYM packages and the second one gives you the .dSYM
packages with a specific UUID. If spotlight does not find your .dSYM
package then symbolicatecrash
will neither. If you do all this stuff e.g. in a subfolder of your ~/Desktop
spotlight should be able to find everything.
If symbolicatecrash
finds your .dSYM
package there should be a line like the following in symbolicate.log
:
@dsym_paths = ( <SOME_PATH>/example.app.dSYM/Contents/Resources/DWARF/example )
For finding your .app
package a spotlight search like the following is invoked by symbolicatecrash
:
mdfind "kMDItemContentType == com.apple.application-bundle && (kMDItemAlternateNames == 'example.app' || kMDItemDisplayName == 'example' || kMDItemDisplayName == 'example.app')"
If symbolicatecrash
finds your .app
package there should be the following extract in symbolicate.log
:
Number of symbols in <SOME_PATH>/example.app/example: 2209 + 19675 = 21884
Found executable <SOME_PATH>/example.app/example
-- MATCH
If all those resources are found by symbolicatecrash
it should print out the symbolicated version of your crash log.
If not you can pass in your dSYM and .app files directly.
symbolicatecrash -v --dsym <SOME_PATH>/<App_URI>.app.dSYM/<APP_NAME>.app.dsym <CRASHFILE> <SOME_OTHER_PATH>/<APP_NAME>.app/<APP_NAME> > symbolicate.log
Note: The symbolicated backtrace will be output to terminal, not symbolicate.log
.
symbolicatecrash
command, how to use it, and how to find the dSYM file needed to do symbolication. – Mascon