I am trying to build FreeRTOS with TCP libraries for Xilinx Zynq ZC702, though I want to emulate the image with QEMU.
I am following the steps described here and resolved other issues that arose. Currently I am facing an issue with undefined variables during the linking stage. The specific error message is
../../../../build/tests/arm32/vexpress-a9/freertos/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/portable/NetworkInterface/Zynq/uncached_memory.o: In function `vInitialiseUncachedMemory':
uncached_memory.c:(.text+0x164): undefined reference to `_end'
uncached_memory.c:(.text+0x168): undefined reference to `_end'
../../../../build/tests/arm32/vexpress-a9/freertos/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/standalone_v6_6/src/xil_cache.o: In function `Xil_L1DCacheInvalidate':
xil_cache.c:(.text+0x75c): undefined reference to `_stack_end'
xil_cache.c:(.text+0x760): undefined reference to `_stack_end'
xil_cache.c:(.text+0x768): undefined reference to `__undef_stack'
xil_cache.c:(.text+0x76c): undefined reference to `__undef_stack'
../../../../build/tests/arm32/vexpress-a9/freertos/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/standalone_v6_6/src/xil_cache.o: In function `Xil_L2CacheInvalidate':
xil_cache.c:(.text+0xf98): undefined reference to `_stack_end'
xil_cache.c:(.text+0xf9c): undefined reference to `_stack_end'
xil_cache.c:(.text+0xfa4): undefined reference to `__undef_stack'
xil_cache.c:(.text+0xfa8): undefined reference to `__undef_stack'
../../../../build/tests/arm32/vexpress-a9/freertos/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/standalone_v6_6/src/xil_mmu.o: In function `Xil_SetTlbAttributes':
xil_mmu.c:(.text+0x20): undefined reference to `MMUTable'
xil_mmu.c:(.text+0x24): undefined reference to `MMUTable'
collect2: error: ld returned 1 exit status
Makefile:167: recipe for target '../../../../build/tests/arm32/vexpress-a9/freertos/freertos.elf' failed
make: *** [../../../../build/tests/arm32/vexpress-a9/freertos/freertos.elf] Error 1
Where should I define these variables since the system will be emulated?
The Zynq network specific files can be found here