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AR# 67382

Vivado Simulation - compile_simlib targetting ModelSim DE fails on Linux 64-bit OS


I am trying to compile the simulation libraries on a Linux 64-bit OS with this command:

compile_simlib -simulator modelsim -language vhdl -family zynq -directory simlib -force -verbose

It fails with these errors:

Executing cmd '/opt/mgc_tree/modelsim-DE-10.5b/modelsim_dlx/bin/vcom -version -64' with output '.cxl.modelsim.version' (Mon Jun 13 15:49:23 2016)...

compile_simlib[exe]: The command line '/opt/mgc_tree/modelsim-DE-10.5b/modelsim_dlx/bin/vcom -version -64' returned exit code '7'.

ERROR: [Vivado 12-4686] Simulator version check command failed:"/opt/mgc_tree/modelsim-DE-10.5b/modelsim_dlx/bin/vcom -version -64". Please make sure that this version of simulator support the options specified in this command. For more details on this failure, open the '.cxl.modelsim.version' file.

ERROR: [Vivado 12-4688] Unsupported simulator version. Please run 'compile_simlib -help' for the supported 'ModelSim' version.

When I try to open the '.cxl.modelsim.version' file as suggested I get the error below:

-bash-4.1$ cat .cxl.modelsim.version

Failed to open executable /opt/mgc_tree/modelsim-DE-10.5b/modelsim_dlx/bin/../linuxpe/../linux_x86_64pe/vcom in execute mode needed for the option -64.

What is causing this error and how do I fix it?


By default, compile_simlib performs the simulator compilation in 64-bit mode.

On Linux, ModelSim DE runs as a 32-bit binary only (even on 64-bit Linux). Therefore the default mode is not working.

To resolve the error, you need to add the -32bit switch to the compile_simlib command to run the compilation in 32-bit mode.

Simulation libraries can be successfully compiled for ModelSim SE and Questa in the default 64-bit mode.

AR# 67382
Date 03/13/2017
Status Active
Type General Article
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