Crash when dumping symbols from DSYM using Python API


Bugzilla Link	PR38687
Status	NEW
Importance	P enhancement
Reported by	Radu Lazar (radu.lazar@me.com)
Reported on	2018-08-24 05:43:37 -0700
Last modified on	2018-08-24 05:43:37 -0700
Version	unspecified
Hardware	Macintosh MacOS X
CC	llvm-bugs@lists.llvm.org
Fixed by commit(s)
Attachments	`Python_2018-08-24-142539_TAG009441878169-1908.crash` (43933 bytes, text/plain)
Blocks
Blocked by
See also

Created attachment 20763
crash log

Description:
 When looping through the architectures present in a DSYM file, querying the target GetDescription() crashes.
 The DSYM file has symbols for armv7, armv7s, arm64.
 The crash occurs on the second iteration when creating the armv7s target.
 The crash does not occur if I loop without parsing the symbols

Steps:
    for arch in getArchitectures(dsymFile):
       error = lldb.SBError()
       target = debugger.CreateTarget(dsymFile, 'none-none-' + arch, None, False, error)
       targetDescr = lldb.SBStream()
       target.GetDescription(targetDescr, lldb.eDescriptionLevelFull); -> crash
       #enumerate all compile units
       #enumerate all symbols

Actual result:
Segmentation fault: 11

Expected result:
Get the description and not crash

MacOS High Sierra 10.13.6
Xcode 9.3(9E145)

Quuxplusone / LLVMBugzillaTest

Crash when dumping symbols from DSYM using Python API #37660