Comment by Sarvesh Tamba (JIRA)

@belkadan does this look familiar to you? Any inputs or suggestions on this?

I don't work on LLDB, so I don't see LLDB test failures that often. In this case I see that the backtrace mentions "swig", so maybe your version of SWIG isn't new enough, or there's something else wrong with the LLDB Python bindings.

Comment by Sarvesh Tamba (JIRA)

Hi,

I have installed all the development dependencies as mentioned in https://github.com/apple/swift:-

sudo apt-get install git cmake ninja-build clang python uuid-dev libicu-dev icu-devtools libbsd-dev libedit-dev libxml2-dev libsqlite3-dev swig libpython-dev libncurses5-dev pkg-config libblocksruntime-dev libcurl4-openssl-dev systemtap-sdt-dev tzdata rsync

I also tried setting the PYTHONPATH as mentioned in:-
https://stackoverflow.com/questions/30869945/how-to-import-lldb-in-a-python-script

The problem still persists and affects around 865 tests due to this reason.

Let me know if I am missing anything else.

Comment by Sarvesh Tamba (JIRA)

Set the python path environment variable PYTHONPATH to what *lldb P* evaluated to:

root@877e1c79bb05:~# /root/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/bin/lldb -P
/root/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lib/python2.7/site-packages

root@877e1c79bb05:~# export PYTHONPATH="/root/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lib/python2.7/site-packages"

With this 865/883 failing test cases passed which previously failed with common errors as below:-
ImportError: dynamic module does not define init function (init_lldb)

Current status of lldb test suite is as below:-
Expected Passes : 1402
Unsupported Tests : 49
Unexpected Failures: 127

Many of the remaining test cases throw up errors like below:-

Error Type 1(Approx 49 occurences):-

error: Couldn't lookup symbols:
swift_beginAccess
swift_endAccess
error: Couldn't lookup symbols:
swift_allocError
swift_getWitnessTable
swift_willThrow
error: Couldn't lookup symbols:
method descriptor for Swift.Hashable._rawHashValue(seed: Swift.Int) -> Swift.Int
method descriptor for Swift.Hashable.hash(into: inout Swift.Hasher) -> ()
method descriptor for Swift.Hashable.hashValue.getter : Swift.Int
protocol descriptor for Swift.Hashable

[...Many More...]

Error Type 2(Approx 51 occurences):-

AssertionError: False is not True : inline test did not hit a single breakpoint

Error Type 3(Approx 13 occurences):-

AssertionError: False is not True : Expected 1 thread to stop at breakpoint, 0 did.

Investigating on the failure test cases further. Attached is the test run log.

log_swift_master_buildtoolchain.log

Comment by Sarvesh Tamba (JIRA)

@belkadan, Do you know anyone who can help me resolving with these lldb test suite failures?

Comment by Sarvesh Tamba (JIRA)

Iam invoking the toolchain and the tests using the following command:-

{{ ./swift/utils/build-toolchain srtbundle --test}}

I assume this creates a release build, where source files are compiled without any debug information.
So in that case the binaries(a.out and others) might not really help in debugging with lldb, hence the tests fail. Could this be the case here?

Comment by Sarvesh Tamba (JIRA)

Looks like the tests are built with g option:

1. 1. 1. Compiling /home/sar/swift-source/lldb/packages/Python/lldbsuite/test/lang/swift/anytype_array/main.swift /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/bin/swift -frontend -c -primary-file /home/sar/swift-source/lldb/packages/Python/lldbsuite/test/lang/swift/anytype_array/main.swift \ \ -g -Onone -serialize-debugging-options -module-cache-path /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/module-cache-clang -sdk / -enable-anonymous-context-mangled-names -module-name a -emit-module-path \ /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/main.partial.swiftmodule \ -o /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/main.o
2. 1. 1. Merging swift modules for a /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/bin/swift -frontend -g -Onone -serialize-debugging-options -module-cache-path /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/module-cache-clang -sdk / -enable-anonymous-context-mangled-names -merge-modules \ -emit-module main.partial.swiftmodule \ -emit-parseable-module-interface-path /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/a.swiftinterface \ -parse-as-library -sil-merge-partial-modules \ -disable-diagnostic-passes -disable-sil-perf-optzns \ -module-name a \ -o /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/a.swiftmodule

I tried manually debugging the test binary, and here is the output:-

sar@e2641fd15168:~$ /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/bin/lldb

(lldb) target create /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/a.out Current executable set to '/home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/a.out' (powerpc64le).

(lldb) breakpoint set -f /home/sar/swift-source/lldb/packages/Python/lldbsuite/test/lang/swift/anytype_array/main.swift -l 14 Breakpoint 1: where = a.out`main + 28 at main.swift:14:9, address = 0x0000000000000dbc

(lldb) b main Breakpoint 2: 2 locations.

(lldb) run Process 5911 launched: '/home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/a.out' (powerpc64le) Process 5911 stopped * thread #1, name = 'a.out', stop reason = breakpoint 1.1 2.1 frame #0: 0x0000000020000dbc a.out`main at main.swift:14:9 11 return 0 //%self.expect('frame variable -d run – patatino', substrs=['Any.Type', '3 values', 'String', 'Int', 'Float']) 12 } 13 -> 14 let _ = main() Target 0: (a.out) stopped.

(lldb) bt all * thread #1, name = 'a.out', stop reason = breakpoint 1.1 2.1 * frame #0: 0x0000000020000dbc a.out`main at main.swift:14:9 frame #1: 0x00003fffb737309c libc.so.6 frame #2: 0x00003fffb7373298 libc.so.6`__libc_start_main + 184

(lldb) image list [ 0] 6A70B8E5-8978-24E2-B6FB-CD2EA250BA58-77496103 0x0000000020000000 /home/sar/swift-source/build/buildbot_linux/lldb-linux-powerpc64le/lldb-test-build.noindex/lang/swift/anytype_array/lldbsuite.test.lldbtest.test_dwarf/a.out [ 1] 79B77F3A-F49D-6F75-0840-5120D5968CA9-0145C43B 0x00003fffb7fa0000 /lib/powerpc64le-linux-gnu/ld-2.23.so [ 2] 8FF97540-619C-F153-7002-5627A4A87181-B9D1C08F 0x00003fffb7f80000 [vdso] (0x00003fffb7f80000) [ 3] 3870E4E4 0x00003fffb7f00000 /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/lib/swift/linux/libswiftSwiftOnoneSupport.so [ 4] A8C44F75 0x00003fffb7860000 /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/lib/swift/linux/libswiftCore.so [ 5] 704EB228-6146-630E-7C5D-DE01D9FC81A4-02C264CE 0x00003fffb7640000 /usr/lib/powerpc64le-linux-gnu/libstdc++.so.6 [ 6] 88162EB5-0FAB-9455-1A1F-DA0D4804EE49-DDB88487 0x00003fffb7550000 /lib/powerpc64le-linux-gnu/libm.so.6 [ 7] 214936BC-5342-4FA4-02F8-0A9BDD696868-C8FAE57E 0x00003fffb7520000 /lib/powerpc64le-linux-gnu/libgcc_s.so.1 [ 8] 3201796D-D0A0-95E1-1FCC-32539807A6EF-D37B1F01 0x00003fffb7350000 /lib/powerpc64le-linux-gnu/libc.so.6 [ 9] 6B35AAA8-FB77-6536-3D47-C5FBFCA1D41F-DCB55B14 0x00003fffb7310000 /lib/powerpc64le-linux-gnu/libpthread.so.0 [ 10] A6DD345B-37DB-0CD4-1028-8C3E113AA9A7-6B3BD3ED 0x00003fffb72e0000 /usr/lib/powerpc64le-linux-gnu/libatomic.so.1 [ 11] 7AE2513B-2B12-9C1E-4E48-3869012B5849-9A7CCA93 0x00003fffb72b0000 /lib/powerpc64le-linux-gnu/libdl.so.2 [ 12] 1B52A2A3-E49D-38E7-05C6-1CED403ADFB1-15D6EDE6 0x00003fffb6f10000 /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/lib/swift/linux/powerpc64le/libicui18nswift.so.61 [ 13] FC86F283-3712-3F13-DD26-CDD76B292E4B-ED2D3629 0x00003fffb6cc0000 /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/lib/swift/linux/powerpc64le/libicuucswift.so.61 [ 14] BDAFEB7C-12EF-60B4-F753-765C2B2EBA12-0900EA0A 0x00003fffb5300000 /home/sar/swift-source/build/buildbot_linux/swift-linux-powerpc64le/lib/swift/linux/powerpc64le/libicudataswift.so.61

(lldb) thread list Process 5911 stopped * thread #1: tid = 5911, 0x0000000020000dbc a.out`main at main.swift:14:9, name = 'a.out', stop reason = breakpoint 1.1 2.1

(lldb) continue Process 5911 resuming Process 5911 stopped * thread #1, name = 'a.out', stop reason = breakpoint 2.2 frame #0: 0x0000000020000e10 a.out`main() at main.swift:7:5 4 5 func main() -> Int { 6 let patatino: [Any.Type] = [ -> 7 String.self, 8 Int.self, 9 Float.self, 10 ] Target 0: (a.out) stopped. (lldb) bt all * thread #1, name = 'a.out', stop reason = breakpoint 2.2 * frame #0: 0x0000000020000e10 a.out`main() at main.swift:7:5 frame #1: 0x0000000020000dc0 a.out`main at main.swift:14:9 frame #2: 0x00003fffb737309c libc.so.6 frame #3: 0x00003fffb7373298 libc.so.6`__libc_start_main + 184

(lldb) continue Process 5911 resuming Process 5911 exited with status = 0 (0x00000000)

(lldb)

Not sure what am I missing.