Debug Swift debugging with LLDB

5:04 - Show info about all loaded dylibs

image list

5:24 - Show debug info for a code address

image lookup -va $pc

5:58 - Show help for target.source-map

settings list target.source-map

6:37 - Remap source paths in LLDB

settings set target.source-map /Volumes/BUILD_SERVER/projects /Users/demo/Desktop/Adventure/3rdparty

7:02 - Source path remapping

settings set target.source-map prefix new

8:13 - Debug prefix map

-debug-prefix-map $PWD=/BUILDROOT

8:32 - Print object description of "words"

po words
expr -O -- words

8:40 - Evaluate the expression "words"

p words
expr words

8:58 - Display the variable "words"

v words
frame variable words

10:10 - Raw memory of a Swift variable

mem read UnsafePointer<Items>(self.inventory)

11:59 - See diagnostics from LLDB's embedded Swift compiler

swift-healthcheck

15:47 - Register Swift modules 
with the Linker

ld … -add_ast_path /path/to/My.swiftmodule

16:05 - Verify Swift modules were registered in binary

dsymutil -s MyApp | grep .swiftmodule

16:12 - Wrapping Swift modules in object files on Linux

swiftc -modulewrap My.swiftmodule -o My.swiftmodule.o

16:52 - Evaluate the expression "self"

p self

16:58 - Print object description of "words"

po words
expr -O -- words

17:08 - Step into function call

s
thread step-in

17:10 - Step over instruction

n
thread step-over

18:23 - Avoiding serialized search paths 
in Swift modules (command line)

-no-serialize-debugging-options

18:24 - Avoiding serialized search paths 
in Swift modules (Xcode)

SWIFT_SERIALIZE_DEBUGGING_OPTIONS=NO

18:32 - Reintroducing search paths in LLDB

settings set target.swift-extra-clang-flags …
settings set target.swift-framework-search-paths …
settings set target.swift-module-search-paths …