How to start RTX application built by gcc successfully?

RE: How to start RTX application built by gcc successfully?

Jørgen Holmefjord — Fri, 16 Jun 2017 12:47:45 GMT

Sorry, I looked in the wrong place. You are correct, there is no RTX GCC projects in SDK 12.3.

RE: How to start RTX application built by gcc successfully?

tk — Fri, 16 Jun 2017 12:40:33 GMT

I cannot find any example of rtx with GCC project in SDK 12.3.0 examples (no armgcc/ directory in blinky_rtx). Anyway, I'll upload my Makefile in MyPage.

RE: How to start RTX application built by gcc successfully?

Jørgen Holmefjord — Fri, 16 Jun 2017 12:24:11 GMT

I'm not aware of any recent examples of RTX with GCC that include a softdevice, this is why I asked you to upload the Makefile. In the blinky_rtx example in SDK 12.3.0, there is a GCC project. There is also a GCC project for ble_app_hrs_rtx in SDK 10. Could you upload the Makefile in MyPage? Then the information within will be keept confidential.

RE: How to start RTX application built by gcc successfully?

tk — Fri, 16 Jun 2017 11:58:00 GMT

Sorry, it's a private project, so I cannot upload it. I cannot find an example of RTX with armgcc. Is there any example?

RE: How to start RTX application built by gcc successfully?

Jørgen Holmefjord — Fri, 16 Jun 2017 11:09:29 GMT

Which example are you basing this on? Could you upload the Makefile you use?

RE: How to start RTX application built by gcc successfully?

tk — Wed, 07 Jun 2017 06:53:31 GMT

Thanks for your comment. I don't really understand the startup mechanism. I don't have to call software_init_hook() manually, right? I remove pre_main() and -D__START macro.

Then, I go forward a bit... This time, I reach the final step of osKernelStart() in rt_CMSIS.c. It seems that error occurs when calling __svcKernelStart(). I found that the program is in SVC_Handler().

Resetting target
(gdb) c
Continuing.
^C
Program received signal SIGTRAP, Trace/breakpoint trap.
0x0002625c in SVC_Handler ()
(gdb) bt
#0  0x0002625c in SVC_Handler ()
#1  <signal handler called>
#2  0x00027498 in __svcKernelStart () at ../SDK/external/rtx/source/rt_CMSIS.c:485
#3  osKernelStart () at ../SDK/external/rtx/source/rt_CMSIS.c:612
#4  0xd7f001d0 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

By using Keil, the program starts normally. What should I do in the case of using gcc?

RE: How to start RTX application built by gcc successfully?

RK — Mon, 05 Jun 2017 09:49:00 GMT

well you're in the hardfault handler so you have a hardfault. You'll need to figure out what caused it. Looks like register_exitproc() executed the code which caused the problem.