[SR-13880] Illegal Instruction in Swift compiler and interpreter

[swift-ci]

Previous ID	SR-13880
Radar	rdar://problem/71677715
Original Reporter	davidl2 (JIRA User)
Type	Bug

Environment

"Docker version 17.05.0-ce, build 89658be", that is the "docker" Debian package, on Debian 10.3 64-bit, in a VM, under VirtualBox, on Windows 10.

$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping : 2
cpu MHz : 2009.110
cache size : 512 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx fxsr_opt rdtscp lm 3dnowext 3dnow rep_good nopl cpuid extd_apicid tsc_known_freq pni x2apic hypervisor lahf_lm cr8_legacy 3dnowprefetch vmmcall
bugs : fxsave_leak sysret_ss_attrs null_seg swapgs_fence amd_e400 spectre_v1 spectre_v2
bogomips : 4018.22
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

Additional Detail from JIRA

Votes	0
Component/s	Docker
Labels	Bug
Assignee	@shahmishal
Priority	Medium

md5: 6602d3a77e4c96582dcb1802a18b4490

Issue Description:

Trying to run the first example in the Docker image's help page, I expect some sort of REPL loop, but instead I get a stack trace, and an "Illegal Instruction" return code...

$ docker run --cap-add sys_ptrace -it --rm swift swift
Stack dump:
{{0. Program arguments: swift }}
1. Swift version 5.3 (swift-5.3-RELEASE)
swift[0x51f95a4]
swift[0x51f719e]
swift[0x51f987c]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x128a0)[0x7f7e098918a0]
swift[0x192a473]
swift[0x192349f]
swift[0x4e96d6]
swift[0x4e8a68]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f7e07edfb97]
swift[0x4e860a]

$ echo $?
132

[typesanitizer]

The integrated REPL has been removed, but we should print a nice diagnostic instead (and update the documentation as applicable). You can try compiling a hello world though, it should work.

@swift-ci create

[adrian-prantl]

theindigamer (JIRA User) how do I recognize that this is the integrated repl? It looks like they are invoking swift without any arguments, shouldn't that be equivalent to lldb --repl?

[typesanitizer]

Hmm, I think you're right, I made a mistake. I looked at crash plus calling swift with no arguments, so my mind jumped to integrated REPL which also had crashes at some point after it was removed.