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Forum Topic - GDB On QNX OS: (4 Items)

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Preethi Selvaraju

08/25/2022 12:00 AM

post121902

Hi Team,

My host  OS is Windows and QNX OS is on QualComm Snapdragon Ride platform hardware. We are using QNX 7.1.0 SDP and SDK 
is 11.1.
We are unable to run our application through QNX Momentics IDE[We are discussing with the technical team]. 
Our application crashes when we run on QNX OS. Can we run gdb directly on QNX OS without Momentics IDE and host OS like 
how we use valgrind tool on QNX OS? 
https://www.qnx.com/developers/docs/7.0.0/#com.qnx.doc.hypervisor.user/topic/debug/gdb.html
The above page states we need to connect to QNX OS through host OS remotely. 
Whether QNX Software Centre has GDB tool like it has valgrind? So that we can copy gdb binaries to QNX OS and run 
directly?
Please someone share idea on how to do this.

Jim Sleeth

08/26/2022 7:18 AM

post121903

Re: GDB On QNX OS

For SDP7.1 only remote debugging is supported. To do this you run an application called pdebug on your target and you 
run gdb on your Windows host.
http://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.utilities/topic/p/pdebug.html
http://www.qnx.com/developers/docs/7.1/#com.qnx.doc.neutrino.utilities/topic/g/gdb.html

John Kearney

08/26/2022 1:18 PM

post121905

Re: GDB On QNX OS

may also want to use dumper, so you can do postmortem debugging.
http://www.qnx.com/developers/docs/7.1/#com.qnx.doc.neutrino.utilities/topic/d/dumper.html

Jim P

09/26/2022 10:21 AM

post121941

Re: GDB Native On QNX OS 7.1

As stated above, it's not officially supported by QNX.

However, the source code is available.  My team member has recently compiled it on QNX 7.1.

We haven't gotten it to successfully run just yet.   We fixed a reported error ("working directory: not a directory"), 
but it looks like the next step is creating some initialization files to get gdb to recognize x86_64 qnx (our target) as
 a supported architecture. 

OP: have you tried compiling yourself?

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