microsoft / microsoft/vscode-cpptools

Run C++ app generates segv

Aperta
#11,199 6 commenti 0 reazioni 0 assegnatari Vedi su GitHub

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bug debugger
Lingua principale
TypeScript
Stelle
6.2k
Fork
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Merge medio
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PR unite (30g)
61

Descrizione

Type: Bug

  • Setting up basic C++ compile/run IDE process using documented process.
  • Create basic HelloWorld C++ application
    #include

int main(){
std::cout<<"HelloWorld"<<std::endl;
return 0;
}

  • Try to compile and run which generates segv

=thread-group-added,id="i1"
GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/.
Find the GDB manual and other documentation resources online at:
http://www.gnu.org/software/gdb/documentation/.

For help, type "help".
Type "apropos word" to search for commands related to "word".
Warning: Debuggee TargetArchitecture not detected, assuming x86_64.
=cmd-param-changed,param="pagination",value="off"
Stopped due to shared library event (no libraries added or removed)
Loaded '/lib64/ld-linux-x86-64.so.2'. Symbols loaded.

Program received signal SIGSEGV, Segmentation fault.
_dl_unload_cache () at dl-cache.c:348
Loaded '/lib/x86_64-linux-gnu/libstdc++.so.6'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libc.so.6'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libm.so.6'. Symbols loaded.
Loaded '/lib/x86_64-linux-gnu/libgcc_s.so.1'. Symbols loaded.
Execute debugger commands using "-exec ", for example "-exec info registers" will list registers in use (when GDB is the debugger)

  • effects both Ubuntu and Fedora Linux
  • Hello application is compiled and can be run at CLI without issue

Extension version: 1.16.3
VS Code version: Code 1.80.1 (74f6148eb9ea00507ec113ec51c489d6ffb4b771, 2023-07-12T17:22:25.257Z)
OS version: Linux x64 5.15.0-76-generic snap
Modes:

System Info
Item Value
CPUs Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz (4 x 3598)
GPU Status 2d_canvas: unavailable_software
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: disabled_software
multiple_raster_threads: enabled_on
opengl: disabled_off
rasterization: disabled_software
raw_draw: disabled_off_ok
video_decode: disabled_software
video_encode: disabled_software
vulkan: disabled_off
webgl: unavailable_software
webgl2: unavailable_software
webgpu: disabled_off
Load (avg) 1, 1, 1
Memory (System) 7.75GB (5.54GB free)
Process Argv --no-sandbox --force-user-env --unity-launch
Screen Reader no
VM 100%
DESKTOP_SESSION ubuntu
XDG_CURRENT_DESKTOP Unity
XDG_SESSION_DESKTOP ubuntu
XDG_SESSION_TYPE x11
A/B Experiments
vsliv368cf:30146710
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vslsvsres303:30308271
vserr242:30382549
pythontb:30283811
vsjup518:30340749
pythonptprofiler:30281270
vshan820:30294714
vstes263cf:30335440
vscoreces:30445986
vscod805:30301674
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
vsaa593cf:30376535
pythonvs932:30410667
py29gd2263:30789496
vscaac:30438847
vsclangdf:30486550
c4g48928:30535728
dsvsc012:30540252
pynewext54:30695312
azure-dev_surveyone:30548225
3biah626:30602489
pyind779:30671433
f6dab269:30613381
pythonsymbol12:30671437
a9j8j154:30646983
showlangstatbar:30737416
vsctsb:30748421
pythonms35:30701012
a2ce3375:30757347
57b77579:30736110
pythonfmttext:30731395
pythoncmv:30756943
fixshowwlkth:30771522
showindicator:30785052
pythongtdpath:30769146
i26e3531:30780429
pythonnosmt12:30779714
pythonidxpt:30784022
pythonnoceb:30776495
h7j2d465:30786200
dsvsc013:30789517

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Direzione di ricerca

Inizia riproducendo il flusso documentato di compilazione ed esecuzione C++ per l’applicazione HelloWorld su Ubuntu o Fedora, quindi esamina l’output di GDB che mostra SIGSEGV in _dl_unload_cache. Confronta l’esecuzione con il debugger con l’esecuzione CLI riuscita e determina se il percorso di avvio dell’estensione è responsabile. Il lavoro è completato quando la stessa applicazione viene eseguita nel debugger di VS Code senza il segmentation fault.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
cpp, linux, vscode
Ambito
devtools, operating-systems
Tipo di issue
Bug
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Ferma
Chiarezza
Abbastanza chiara
Idoneità per principianti
35/100

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