QRcodeGen | To generate qrcode using android with save as image class | QRCode Processing library

I'm generating Dynamic QR code image from my JAVA server using API service, and it generates successfully using the POSTMAN. But while calling the same API in axios.post it returns the response but unable to send this using res.send(response.data)

I am working on a project, based on Embedded Linux and Qt 5.7. On filesystem, I have SVG image file and I want to transform it into PNG Image file. I've searched over internet and found several solutions for achieving such task here. However, I do not have SVG module installed and I was forced to use QIcon approach:

EDIT: I made wrong assumptions here, gcc works fine, read the answer below.

I find pieces of source code, directory structure and other random data from development computer in compiled object files that end up in an executable file after linking.

Of course, this is just random data from compiler's process memory, probably reused buffers that holded source code or other files, not cleaned properly before reuse.

In many cases this is not a problem but sometimes this leakage reveal too much. What I find most problematic about that is it's unpredictability: today it reveals source of some unimportant library, but tomorrow it could reveal some private key or something similar.

Is there some regular way to prevent this, some switch that will force gcc to clean up its buffers between uses or some other solution ?

EDIT:

Ok, here's an example, by compiling qrcodegen.c from:

https://github.com/nayuki/QR-Code-generator/tree/master/c

with this command line:

gcc -c -Wall qrcodegen.c -O9 -o qrcodegen.o

result is here, look at offset 0x668C:

https://drive.google.com/file/d/1WZRlCsjr4CALfi5pmsbd3fLeVsnnxGsa

if linked into executable that content appears in .rdata section exactly as you can see it in object file.