GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

hern16 — Tue, 30 Jul 2019 16:54:03 GMT

In GCC v6, the _PARAMS is define inside gcc-arm-none-eabi-6-2017-q2-update-win32\arm-none-eabi\include\_ansi.h but disappeared in v7. My solution is adding this macro in sdk_config.h

/* Add in sdk_config.h */
#ifndef _PARAMS
#define _PARAMS(paramlist)		paramlist
#endif

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

erriuga — Fri, 12 Jul 2019 03:24:29 GMT

Just wanted to add that this issue is present on nRF5_SDK_13.0.0 using GCC 7.3.1 also

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

Vidar Berg — Fri, 29 Mar 2019 08:07:49 GMT

I'm not sure how this works, to be honest, maybe there are some registry settings that tell the toolchain which include paths to use? When you run the installer it is optional to set the PATH variable (checkbox for setting the PATH variable). Could you try installing the toolchain without updating PATH?

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

Michael — Thu, 28 Mar 2019 09:47:46 GMT

Perhaps there's something wrong with my environment variables?
I didn't install the .exe file, but used the zip, because I have to use several gcc versions for different projects.
When I track the definition for the _PARAMS macro, it points to the 5.4.1 include folder, but I can't seem to point it to the 7.3.1 include path

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

Vidar Berg — Thu, 28 Mar 2019 09:21:37 GMT

Strange, I'm not getting any build errors here. I tried building the ble_app_uart example which uses RTT for logging.

Are you using the "7 2018-q2 update" from ARM? Link: https://developer.arm.com/tools-and-software/open-source-software/gnu-toolchain/gnu-rm/downloads#panel2a.

Edit: It shouldn't be a problem to use v.6.3.1. We used this for SDK 15.2.0

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

Michael — Thu, 28 Mar 2019 09:14:02 GMT

Just removing the _PARAMS did not resolve the problem. It obviously expects something instead.
Could you explain how to change it exactly so it compiles?

Thanks.

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

Michael — Thu, 28 Mar 2019 09:04:09 GMT

This also happens with SDK v15.3.0

Note that the default compiler, as is configured in Makefile.windows is 7.3.1 and it exhibits the exact same compilation error as the OP found.

With GCC 6.3 2017q2-update (6.3.1) it compiles fine.

Is 6.3.1 fine to use with SDK v15.3.0?

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

grzegorz — Mon, 03 Dec 2018 13:06:25 GMT

_PARAMS is not ANSI standard macro so it has been removed from newlilb. Just remove it from SEGGER_RTT_Syscalls_GCC.c. Hope Nordic removes it too.

RE: GCC 7.3.1 compiler error in SEGGER_RTT_Syscalls_GCC.c

Vidar Berg — Mon, 03 Sep 2018 10:52:51 GMT

Thanks for reporting this, I have created a bug report for this internally. Note that SDK 15.0.0 has been tested and verified with GCC 6.3 2017q2-update (release notes)