Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Real time embedded FreeRTOS mailing list 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem TCP & FAT Training




Loading

FreeRTOS with C++

Posted by vicharshunya on January 4, 2014

Hi,

I am trying to use C++ application with FreeRTOS. I come to know about this post :- https://sourceforge.net/p/freertos/discussion/382005/thread/5d5201c0 but I am not sure how and where to add this TaskCPP.h file.

Right now I have very simple main.cpp file something like this.

int main(void) { //Set priority bits to preempt priority NVICPriorityGroupConfig(NVICPriorityGroup_4); for( ;; ); return 0; }

And this gives me an error :- /usr/bin/../lib/gcc/arm-none-eabi/4.7.4/../../../../arm-none-eabi/bin/ld: error: STM32F4_FreeRTOS.axf uses VFP register arguments, /usr/bin/../lib/gcc/arm-none-eabi/4.7.4/libgcc.a(unwind-arm.o) does not

/usr/bin/../lib/gcc/arm-none-eabi/4.7.4/../../../../arm-none-eabi/bin/ld: failed to merge target specific data of file /usr/bin/../lib/gcc/arm-none-eabi/4.7.4/libgcc.a(unwind-arm.o)

I am not sure what is wrong with settings.


FreeRTOS with C++

Posted by richard_damon on January 4, 2014

TaskCPP.h would be included by any file that wants to create a Task via the FreeRTOS wrapper classes.

While I am not familiar with this specific toolset, it looks like there is a configuration error between how you are compiling the file and the library you are linking it to.

The path it is quoting to the linker makes me think something is set up strange (with two different sets of path backtracking).


FreeRTOS with C++

Posted by beginend1 on January 9, 2014

Most likely you are linking with library that uses different floating point calling convention. Check which calling convention is used in library or play with adding/removing "-mfloat-abi=[soft|softfp|hard]" and/or "-mfpu=fpv4-sp-d16" to/from compilation options.


[ Back to the top ]    [ About FreeRTOS ]    [ Sitemap ]    [ ]




Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.


Free TCP/IP and file system demos for the RTOS


Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists