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


Compiler Warnings

Posted by Nobody/Anonymous on March 22, 2007
I'm using the lwIP Embedded WEB Server Demo from FreeRTOS on a AT91SAM7x in Eclipse.
The webserver is working well, now I like to make a TCP socket connection.
Therefore I add the follwing in my makefile:

...................(more and more)
lwip-1.1.0/src/api/err.c \
lwip-1.1.0/src/api/sockets.c \
lwip-1.1.0/src/api/api_lib.c \
...................(more and more)

When compiling -> 152 warnings occur:
errno.h warning: this is the location of the previous definition (70 warnings like this)

warning: "EADDRINUSE" redefined(in arch.h) (about 30 warnings like this)

What's going wrong? How can I solve this?
Is there a source code for handling a socket connection?


RE: Compiler Warnings

Posted by Richard on March 22, 2007
I've never tried including these files so don't know for sure. If you look at the two places the warnings are telling you that there are multiple inclusions you should be able to see what is going on. Maybe there is a guard missing in one of the lwIP header files?


[ 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