Built binaries don't enumerate when building on Ubuntu 18.04 LTS

[gkelly]

I can flash the prebuilt/usb_* images and they work fine, but when I build with the arm-none-eabi toolchain in ubuntu bionic's apt I get images that when flashed just end up doing:

[351788.310188] usb 1-2: USB disconnect, device number 44
[351788.654610] usb 1-2: new full-speed USB device number 45 using xhci_hcd
[351794.010468] usb 1-2: device descriptor read/64, error -110

The compiler version reports:

arm-none-eabi-gcc (15:6.3.1+svn253039-1build1) 6.3.1 20170620

[gkelly]

Should also mention that the miniblink example works fine, it's just the USB examples that seem to be broken.

[gkelly]

Tried with the arm-unknown-eabi from crosstool-ng, which had a similar result. The red light ended up staying on and the enumeration appeared to fail faster. However, the toolchain from https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads, which identifies itself as:

gcc version 7.2.1 20170904 (release) [ARM/embedded-7-branch revision 255204] (GNU Tools for Arm Embedded Processors 7-2017-q4-major)

works, which is nice. Which gcc version were the prebuilt binaries built with?

[xobs]

That is the compiler they were built for originally. Downloaded from that address.

It sounds like this could be an alignment issue. Can you attach an .elf file from a broken build? I'll look through it and see if any addresses are off.

[gkelly]

Here's usb_simple.bin: https://drive.google.com/open?id=12HXy1xhEShCmLtWibbdzG_gZ36h6xzCe and here's usb_simple.elf: https://drive.google.com/open?id=19DdCKcFsoW-xBUEg2a2r8YfK8GD_UKpI Both built with gcc version 6.3.1 20170620 (15:6.3.1+svn253039-1build1).